WELDING PROCEDURES FOR TITANIUM AND TITANIUM ALLOYS

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[tr][td]WELDING PROCEDURES FOR TITANIUM AND TITANIUM ALLOYSAuthors: J. J. Vagi; R. E. Monroe; R. M. Evans; D. C. Martin; BATTELLE MEMORIAL INST COLUMBUS OH [/td][/tr]
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[tr][td]Abstract:
http://www.stormingmedia.us/74/7423/0742336.html%26hl%3Den%26client%3Dca-pub-4613161156835561%26adU%3DCanadaUniversities.ca%26adT%3DContact%2BWelding%2BSchools%26gl%3DCA&usg=AFQjCNGk9yLYGmpzJ3f41OQ43CyufVQzcQ]Ads by Google[/url]
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The report covers the state of the art of welding procedures for titanium and its alloys. Methods employed in the past and present are described. Many of the conventional welding and brazing processes are used for joining titanium and its alloys. Information on the use of these processes, when available, was condensed or extracted and included in this report. Necessary additional processing such as preweld cleaning, joint preparation, postweld cleaning, and postweld operations are also included since they form an integral part of the welding processes without which successful welding cannot be accomplished. Joining processes that have been used only experimentally also are described briefly. The need for proper preweld cleaning operations and proper shielding to prevent contamination of titanium welds is emphasized throughout.

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[tr][td=30%]Limitations:[/td][td=70%]APPROVED FOR PUBLIC RELEASE[/td][/tr]
[tr][td=25%]Pages: [/td][td=75%]236[/td][/tr]
[tr][td=25%]Report Date:[/td][td=75%]OCT 1965[/td][/tr]
[tr][td=25%]Contract Number:[/td][td=75%]Z, DA01021AMC11651Z[/td][/tr]
[tr][td=25%]Report Number: [/td][td=75%]0742336[/td][/tr]
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[tr][td]Keywords relating to this report:[/td][/tr]
[tr][td]*TITANIUM[/td][/tr]
[tr][td]*TITANIUM ALLOYS[/td][/tr]
[tr][td]*WELDING[/td][/tr]
[tr][td]AIRFRAMES[/td][/tr]
[tr][td]ARMOR[/td][/tr]
[tr][td]BRAZING[/td][/tr]
[tr][td]CLEANING[/td][/tr]
[tr][td]CONTAINERS[/td][/tr]
[tr][td]HULLS_MARINE_[/td][/tr]
[tr][td]REPORTS[/td][/tr]
[tr][td]STATE OF THE ART[/td][/tr]
[tr][td]STRUCTURAL COMPONENTS[/td][/tr]
[tr][td]VEHICLES[/td][/tr]
[tr][td]WELDS[/td][/tr]
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[tr][td=15%]Total Results: 17
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[tr][td=2,1]Evaluation of the Adhesive Bonding Processes Used in Helicopter Manufacture. Part 3. Development of Improved Titanium Surface Treatments.
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JUN 1972
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[tr][td=5,1]Authors: Willard C. Hamilton; George A. Lyerly; Geoffrey Frohnsdorff; GILLETTE CO RESEARCH INST ROCKVILLE MD
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Studies were made to determine whether rutile-free, anatase-containing oxide layers on CP titanium and titanium 6-aluminum, 4- vanadium alloy, could transform to rutile- containing layers on aging. Scanning electron microscope observations and electron diffraction showed that rutile could be detected in the oxide layers on some aged specimens which had been adhesively bonded, stressed, and exposed to high ambient temperatures and relative humidities. Since these specimens had been prepared using …
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[tr][td=2,1]Beryllium Wire - Metal Matrix Composites Program.[/td][td]
31 JAN 1971
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[tr][td=5,1]Authors: V. L. Goodwin; M. Herman; GENERAL MOTORS CORP INDIANAPOLIS IN ALLISON GAS TURBINE DIV
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The report presents the results of a continuing effort to produce low cost Be/Ti composite fan and compressor blades for aircraft turbine engines. Design/payoff studies have been performed which indicate these materials are well suited to this application and offer significant weight savings. Several methods of producing Be/Ti composites at reasonable costs were investigated with encouraging results. Property data for these composites are given in the report. Direct forging as …
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[tr][td=2,1]Development of Whisker-Reinforced Light Alloys.[/td][td]
NOV 1970
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[tr][td=5,1]Authors: Robert A. Hermann; Paul J. Lare; Fred Ordway; Henry Hahn; ARTECH CORP FALLS CHURCH VA
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The objectives of the program were to fabricate and characterize magnesium alloy/alpha-SiC whisker composites and investigate methods for producing titanium/SiC whisker composites. Magnesium alloy composites were consolidated by spark sintering and two different liquid phase hot pressing techniques. Whisker alignment was produced by extrusion of camphene infiltrated green bodies prior to consolidation or by subsequent hot solid state extrusion. Hot pressing with the matrix almost entirely liquid gave AZ31B alloy/alpha-SiC …
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[tr][td=2,1]Review of Recent Developments. Titanium and Titanium Alloys,[/td][td]
09 SEP 1970
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[tr][td=5,1]Authors: R. A. Wood; BATTELLE MEMORIAL INST COLUMBUS OH DEFENSE METALS INFORMATION CENTER
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Topics included are mechanical properties; alloy phases, transformation, and structures; property degradation; and product development.
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[tr][td=2,1]Advanced Nondestructive Testing Techniques for Titanium Billets and Ingots.[/td][td]
AUG 1970
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[tr][td=5,1]Authors: Istvan M. Matay; Frank J. Sattler; TRW EQUIPMENT LABS CLEVELAND OH MATERIALS DEVELOPMENT DEPT
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[tr][td=2,1]Review of Recent Developments. Titanium and Titanium Alloys,[/td][td]
23 JAN 1970
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[tr][td=5,1]Authors: R. A. Wood; BATTELLE MEMORIAL INST COLUMBUS OH DEFENSE METALS INFORMATION CENTER
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Topics included are: Cast alloys; Powder metallurgy, Bonding and forging; Design economics; and Specifications.
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[tr][td=2,1]Beryllium Wire - Metal Matrix Composites Program.[/td][td]
1969
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[tr][td=5,1]Authors: V. L. Goodwin; M. Herman; GENERAL MOTORS CORP INDIANAPOLIS IN ALLISON GAS TURBINE DIV
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The tensile properties and fatigue performance of 51 v/o beryllium wire/6061-0 aluminum matrix composites were determined. Specimens of both uniaxial and crossplyed filament orientations were tested. All properties obtained were at their maximum anticipated levels. Continued work with Be wire/titanium matrix composites featured the satisfactory fabrication of 51 v/o composites yielding near rule of mixtures strength and tensile modulus. Also, the ballistic impact and fatigue characteristics for Be/Ti were established …
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[tr][td=2,1]DMIC REVIEW OF RECENT DEVELOPMENTS: TITANIUM AND TITANIUM ALLOYS,[/td][td]
23 AUG 1968
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[tr][td=5,1]Authors: R. A. Wood; D. J. Maykuth; BATTELLE MEMORIAL INST COLUMBUS OH DEFENSE METALS INFORMATION CENTER
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The report discusses some of the proceedings of the International Conference on Titanium. Developments on and uses of titanium are reported for aircraft and aerospace uses.
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[tr][td=2,1]EFFECTS OF ENVIRONMENT ON THE FRACTURE BEHAVIOR OF TITANIUM AND ITS ALLOYS.[/td][td]
AUG 1968
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[tr][td=5,1]Authors: A. J. Sedriks; E. N. Pugh; MARTIN MARIETTA CORP BALTIMORE MD RESEARCH INST FOR ADVANCED STUDIES
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A study was made of the mechanisms of stress-corrosion cracking (SCC) of titanium and Ti-Al alloys in methanol-iodine solutions. The path of cracking was found to depend on the composition of the alloy. In pure titanium and a Ti-2.09 w/o Al alloy SCC is intergranular. In higher alloys (> 5 w/o Al) only the initial part of the crack is intergranular, the later formed transgranular propagation stage exhibiting cleavage markings. …
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[tr][td=2,1]OPTICAL ENERGY TRANSFER PROCESSES.[/td][td]
JUL 1968
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[tr][td=5,1]Authors: M. J. Linevsky; GENERAL ELECTRIC CO PHILADELPHIA PA MISSILE AND SPACE DIV
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Experimental and analytical investigations have been carried out on photo-excitation and ionization processes in barium and titanium systems. It has been shown that, in order to explain the observed rates of photoionization of barium clouds, photoionization involving barium metastables must be assumed. Population of these metastables can be achieved through an optical pumping process involving resonance absorption from the ground state followed by branching into the metastable levels. A quasi-steady …
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[tr][td=2,1]REVIEW OF RECENT DEVELOPMENTS. TITANIUM AND TITANIUM ALLOYS,[/td][td]
05 DEC 1967
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4 pages
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[tr][td=5,1]Authors: R. A. Wood; BATTELLE MEMORIAL INST COLUMBUS OH DEFENSE METALS INFORMATION CENTER [/td][/tr]
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[tr][td=2,1]FORMING OF TITANIUM AND TITANIUM ALLOYS,[/td][td]
01 SEP 1967
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[tr][td=5,1]Authors: Daniel E. Strohecker; BATTELLE MEMORIAL INST COLUMBUS OH DEFENSE METALS INFORMATION CENTER
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This report represents a portion of the information contained in the March, 1967, revised edition of the ‘Aircraft Designer’s Handbook for Titanium and Titanium Alloys’ which was prepared by the Defense Metals Information Center under the joint sponsorship of the U. S. Air Force Research and Technology Division, and the Federal Aviation Agency. The important techniques discussed include; (1) brake forming, (2) stretch forming, (3) deep drawing, (4) trapped-rubber forming, …
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[tr][td=2,1]THE RESISTANCE OF GREASE LUBRICATED METAL COMBINATIONS TO FRETTING DAMAGE.[/td][td]
JUN 1967
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[tr][td=5,1]Authors: S. Fred Calhoun; ARMY WEAPONS COMMAND ROCK ISLAND ILL RESEARCH AND ENGINEERING DIV
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Five different metals were oscillated against each other to assess the extent of fretting damage. They were all lubricated with the same grease and were subjected to the same pressures and vibration rates. The extent of the fretting damage was dependent upon the softness of the metals and also upon the nature of the metals in contact. Metal specimens oscillated against a like metal suffered less damage than when different …
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[tr][td=2,1]THE LATTICE PARAMETERS OF TITANIUM AT CRYOGENIC TEMPERATURES.[/td][td]
JUN 1967
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[tr][td=5,1]Authors: Arnold E. Ebneter; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING
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The lattice parameters of high purity electrolytic titanium (less than 75 BHN), commercially pure titanium, and Ti-4Al alloy were measured over a temperature range from 4.2 K to 300 K using x-ray diffraction techniques. Both the ‘a’ and ‘c’ lattice parameters were found to decrease uniformly from 300 K down to 100 K. From 100 K to 4.2 K the ‘a’ parameter continues to decrease at a reduced rate and …
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[tr][td=2,1]AIRCRAFT DESIGNER’S HANDBOOK FOR TITANIUM AND TITANIUM ALLOYS.[/td][td]
MAR 1967
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583 pages
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[tr][td=5,1]Authors: R. A. Wood; J. A. Gurklis; C. T. Olofson; D. E. Strohecker; D. G. Howden; BATTELLE MEMORIAL INST COLUMBUS OH DEFENSE METALS INFORMATION CENTER [/td][/tr]
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This represents a second edition of an earlier handbook bearing the same title and the designation SST 65-8, dated August, 1965. The handbook represents a collection of data from many sources on the properties and fabrication characteristics of commercially pure titanium and eight titanium alloys including Ti-5Al-2.5Sn, Ti-8Al-1Mo-1V, Ti-6Al-4V, Ti-6Al-6V-2SN, Ti-13V-11Cr-3Al, Ti-4Al-3Mo-1V, Ti-2.25Al-11Sn-5Zr-1Mo-0.2Si and Ti-6Al-2Sn-4Zr-2Mo. Section 1 describes the metallurgical characteristics of titanium and these alloys. Sections 2, 3, and …
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[tr][td=2,1]THE RELATIONSHIP BETWEEN PLASTIC DEFORMATION AND FRACTURE IN ALPHA TITANIUM.[/td][td]
JUN 1966
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[tr][td=5,1]Authors: M. F. Amateau; E. A. Steigerwald; TRW EQUIPMENT GROUP CLEVELAND OH MATERIALS RESEARCH AND DEVELOPMENT DEPT
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Crack initiation and propagation behavior was studied in unalloyed titanium containing between 0.25 and 0.6% oxygen and in Ti-5Al-2.5Sn alloy containing between 0.07 and 0.37% oxygen. Large-grained tensile specimens were tested at -320 F and metallographically examined to identify the mechanism of microcrack formation. Precracked single edge notched specimens were tested at -320 F in order to relate crack propagation events to fracture energy and grain orientation. Second order twin …
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[tr][td=2,1]AN INVESTIGATION OF BARRIER COATINGS ON GRAPHITE MOLDS FOR CASTING TITANIUM.[/td][td]
13 OCT 1965
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[tr][td=5,1]Authors: W. A. Reaves; E. J. Chapin; NAVAL RESEARCH LAB WASHINGTON D C
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The coatings included: a solid solution of MgO and ZrO2; a true oxide compound, CaZrO3; and two single oxides, Gd2O3 and Y2O3. The compound oxides were applied to specially cleaned ATJ grade graphite-mold hollowcylinder inserts by an oxy-acetylene flame spray method, and the single oxides were applied in similar inserts by a plasma spray technique. The MgO, ZrO3 and CaZrO3 coatings were considered to be insufficiently resistant under casting conditions …
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[tr][td=15%]Total Results: 58
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[tr][td=2,1]Small Machining Centers Come Home.
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OCT 1990
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[tr][td=5,1]Authors: T. Beard
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If you thought American builders were all but gone from the small machining center market, look again. Fielding some old names, and some new, the Yanks are on the rise again. (Copyright 1990 by Modern Machine Shop).
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[tr][td=2,1]Making Your ‘Danger Zone’ Safer.[/td][td]
MAR 1988
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[tr][td=2,1]How To Use A Microcomputer Simulation to Determine Order Quantity.[/td][td]
1987
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[tr][td=5,1]Authors: G. Saunders
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[tr][td=2,1]Planning - It’s the Key to Improved Production.[/td][td]
MAR 1983
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[tr][td=2,1]Corrosion Control at Graphite/Epoxy-Aluminum and Titanium Interfaces.[/td][td]
JUL 1974
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[tr][td=5,1]Authors: D. G. Treadway; GENERAL DYNAMICS/CONVAIR SAN DIEGO CALIF
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A test program was conducted to develop and evaluate corrosion protection systems for use on graphite/epoxy-aluminum and graphite/ epoxy-titanium joints. The joint specimens were prepared in duplicate and protected with several corrosion protection systems including epoxy polyamide primer(MIL-P- 23377C), inhibited polysulfide sealant,and a linear polyure-thane topcoat. (AH-PL)
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[tr][td=2,1]Plasma-Arc Welding of Naval Structural Alloys.[/td][td]
APR 1974
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[tr][td=5,1]Authors: Robert L. McCaw; DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER ANNAPOLIS MD
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The application of plasma-arc welding to the fabrication of advanced high performance ships materials, utilizing the key hole mode, has been investigated. Single-pass autogenous butt welds have been produced in 0.062- to 0.375-inch-thick HY-130 steel, 0.062- to 0.250- inch-thick 17-4 precipitation-hardened stainless steel, and 0.070- to 0.480-inch-thick titanium (6A1-4V). Radiographically sound welds with tensile joint efficiencies approaching 100% were produced in the aswelded condition for HY-130 steel and titanium (6A1-4V). …
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[tr][td=2,1]Wear and Fretting Fatigue Resistant Coatings for Titanium Alloys.[/td][td]
15 MAR 1974
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[tr][td=5,1]Authors: Robert K. Betts; GENERAL ELECTRIC CO CINCINNATI OH
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Studies were performed to identify treatments to alleviate the effects of wear on fatigue properties of Ti-6Al-4V, Ti-5Al-4Mo-4Cr-2Sn-2Zr (Ti-17) and Ti-8Al-1Mo-1V. The mechanisms of wear studied were fretting fatigue and sliding wear fatigue. Fretting fatigue tests were performed using high cycle fatigue specimens with shoes bolted across the gauge sections at 25,000 psi contact pressure. The shoes induced fretting as the result of alternating bending strain motion along the edges …
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[tr][td=2,1]Results of Product Inspection of Titanium Samples Using P5F-2.5 Penetrant,[/td][td]
16 AUG 1972
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[tr][td=5,1]Authors: P. Hodgetts; NORTH AMERICAN ROCKWELL CORP LOS ANGELES CA LOS ANGELES DIV
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If B-1 structure is designed to tolerate an initial flaw size smaller than 0.150 inch,. it is required that the flaws be detected to a 90 percent probability and 95 percent confidence level. The results of the 61 observations of flaws in the range of 0.025 to 0.050 inch length with two misses verifies to a 90 percent probability the P5F-2.5 penetrant system will find flaws in this range to …
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[tr][td=2,1]Induction Melting and Casting of Titanium Alloy Aircraft Components.[/td][td]
JUL 1972
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124 pages
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[tr][td=5,1]Authors: Thomas S. Piwonka; Charles R. Cook; TRW INC CLEVELAND OH [/td][/tr]
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Induction melting of titanium alloys using a semi-levitation technique and bottom pouring in graphite crucible was evaluated for four titanium alloys. Ti-6Al-4V, Ti-6Al-2Sn-4Zr-2Mo, Ti-3Al-8V-6Cr-4Mo-4Zr (Beta C), and Ti-11Mo-4.5Sn-6Zr (Beta 111). Precision investment (lost wax) casting molds coated with pyrolytic graphite were used with the melting technique to make castability, tensile specimen, and bearing housing segment castings. Castability and tensile properties of the alloys were characterized. Bearing housing segments were subject …
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[tr][td=2,1]Investigation of Coated Graphite Crucibles for Induction Melting of Titanium.[/td][td]
OCT 1971
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[tr][td=5,1]Authors: Charles A. Zanis; Richard L. Helferich; DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER BETHESDA MD
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The overall task objective is to develop materials and techniques for the successful induction melting of titanium alloys. The report summarizes the progress in determining the feasibility of utilizing coated graphite crucibles for the induction melting of commercial purite titanium. (Author)
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[tr][td=2,1]Fretting Resistant Coatings for Titanium Alloys.[/td][td]
SEP 1971
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[tr][td=5,1]Authors: Donulus J. Padberg; MCDONNELL AIRCRAFT CO ST LOUIS MO
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The report describes a program undertaken to establish the effect of airframe design parameters upon the severity of fretting in titanium structures and to determine the ability of selected coatings to prevent fretting induced fatigue failures. A test specimen was designed to simulate a structural joint and a series of fatigue tests was performed to determine the conditions most conducive to fretting initiated failure. It was found that at low …
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[tr][td=2,1]Effect of Melting on High Hardness Alpha Stabilized Areas in Ti-6Al-4V Alloy.[/td][td]
MAY 1971
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[tr][td=5,1]Authors: Edward M. Grala; TRW EQUIPMENT LABS CLEVELAND OH MATERIALS DEVELOPMENT DEPT
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The chemical, metallurgical, and physical properties of a titanium oxynitride synthesized defect material introduced into a Ti-6Al-4V alloy briquette electrode and remelted were determined. The metallurgical stability of this synthesized defect material was studied by hot stage microscopy and further remelt of the defect material. Experimental techniques utilized in this program were standard metallographic techniques, microhardness traverse, electron microprobe analysis, high temperature metallography and induction melting. Twelve defect-containing specimens were …
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[/table]

[/td][/tr]
[tr][td=2,1]The Relationship of Microstructure and Mechanical Properties of Extruded Titanium Alloy Bars to the Prior Deformation Processing History.[/td][td]
APR 1971
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Fred J. Gurney; Alan T. Male; WESTINGHOUSE ASTRONUCLEAR LAB PITTSBURGH PA
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The inter-relation of extrusion process variables with mechanical properties and microstructure is analyzed for three titanium alloys (Ti-5Al-2.5Sn, Ti-6Al-4V and Ti-13V-11Cr-3Al). Information is obtained from duplicate billets which were extruded at same conditions with one extruded bar allowed to air cool and the other bar water quenched immediately after extrusion. Results indicate that significant reduction in deformation loads can be achieved in alpha and alpha-beta titanium alloys by processing them …
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[/table]

[/td][/tr]
[tr][td=2,1]Project Themis. Metal Deformation Processing.[/td][td]
APR 1971
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Hans Conrad; KENTUCKY UNIV LEXINGTON
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Uniaxial tension tests on Ti-50A and stress relaxation tests on Ti-35A have been shown to yield data appropriate for use in metalworking equations. The yield point normally observed for fine-grained Ti-35A was eliminated by prior hydrostatic pressure soaking. Creep and tensile test data on Ti-55A, Ti-75A, and Ti-6Al-4V collected from the literature were correlated through a hyperbolic sine relationship for strain rate. Superplastic behavior was obtained from 700 to 1000C …
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[/table]

[/td][/tr]
[tr][td=2,1]Glass Bath Heating of Forging Stock.[/td][td]
MAR 1971
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Robert E. Newcomer; MCDONNELL AIRCRAFT CO ST LOUIS MO
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The report describes a Manufacturing Methods Program to evaluate the concept of heating steel and titanium in molten glass and then directly forging. The glass used in this investigation served a two-fold purpose; during heating, it protected the steel from decarburization and scaling and the titanium from contamination; during forging, it served as a lubricant. (Author)
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[/table]

[/td][/tr]
[tr][td=2,1]The Influence of Processing Variables on the Structure and Properties of Extruded Beta III Titanium.[/td][td]
MAR 1971
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Attwell M. Adair; James A. Roberson; AIR FORCE MATERIALS LAB WRIGHT-PATTERSON AFB OH
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The extrusion temperature and cooling rate after extrusion were varied for round to round axisymmetric extrusions of the Beta 111 titanium alloy. The microstructures after extrusion and after heat treatment were examined both by optical and transmission electron microscopy and correlated with the room temperature mechanical properties. Heat treatment following extrusion consisted of either aging only or a solution treatment followed by aging. In contrast to air cooling after extrusion, …
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[/table]

[/td][/tr]
[tr][td=2,1]Strengthening Mechanism of High Strength Titanium Alloys.[/td][td]
MAR 1971
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Michael A. Greenfield; Harold Margolin; NEW YORK UNIV NY ENGINEERING RESEARCH DIV
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The investigation to relate fracture toughness, void formation and growth and ductility to microstructural features in an alpha-beta alloy, Ti-5.25Al-5.5V-0.9Fe-0.5Cu continued. New data confirm the earlier reported relationships between fracture toughness and microstructure of both equiaxed alpha and Widmanstatten plus grain boundary in aged beta matrix morphologies. In equiaxed alpha structures, fracture toughness depends linearly upon the grain boundary area per unit volume, S sub V, and is independent of …
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[/table]

[/td][/tr]
[tr][td=2,1]Development of Whisker-Reinforced Light Alloys.[/td][td]
NOV 1970
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Robert A. Hermann; Paul J. Lare; Fred Ordway; Henry Hahn; ARTECH CORP FALLS CHURCH VA
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The objectives of the program were to fabricate and characterize magnesium alloy/alpha-SiC whisker composites and investigate methods for producing titanium/SiC whisker composites. Magnesium alloy composites were consolidated by spark sintering and two different liquid phase hot pressing techniques. Whisker alignment was produced by extrusion of camphene infiltrated green bodies prior to consolidation or by subsequent hot solid state extrusion. Hot pressing with the matrix almost entirely liquid gave AZ31B alloy/alpha-SiC …
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[/table]

[/td][/tr]
[tr][td=2,1]Review of Recent Developments. Titanium and Titanium Alloys,[/td][td]
09 SEP 1970
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: R. A. Wood; BATTELLE MEMORIAL INST COLUMBUS OH DEFENSE METALS INFORMATION CENTER
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Topics included are mechanical properties; alloy phases, transformation, and structures; property degradation; and product development.
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[/table]

[/td][/tr]
[tr][td=2,1]Study of Effects of Diffused Layers on the Fatigue Strengths of Commercial Titanium Alloys.[/td][td]
SEP 1970
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Irvin R. Kramer; A. Kumar; MARTIN MARIETTA AEROSPACE DENVER CO
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
Sheet specimens of titanium (6Al-4V) were tested in a constant deflection reverse bending machine, with and without surface alloying. It was observed that the endurance limit was increased from 56 ksi for the bare specimens to 67 ksi for the aluminum coated and diffused specimens. The specimens were tested in the annealed condition. Results obtained previously on the titanium (6Al-4V) was also increased from 77 ksi to 85 ksi by …
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[/table]

[/td][/tr]
[tr][td=2,1]Review of Recent Developments. Titanium and Titanium Alloys,[/td][td]
23 JAN 1970
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: R. A. Wood; BATTELLE MEMORIAL INST COLUMBUS OH DEFENSE METALS INFORMATION CENTER
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Topics included are: Cast alloys; Powder metallurgy, Bonding and forging; Design economics; and Specifications.
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[/table]

[/td][/tr]
[tr][td=2,1]Thermodynamics of Titanium Alloys. II. The Titanium-Aluminum System.[/td][td]
DEC 1969
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: R. J. Usell; M. Hoch; CINCINNATI UNIV OH DEPT OF MATERIALS SCIENCE AND METALLURGICAL ENGINEERING
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Activities of titanium and aluminum were measured at 1780K in the body-centered cubic beta phase of the titanium-aluminum system, from zero to forty atomic percent aluminum, using three Knudsen effusion-time-of-flight mass spectrometer techniques. In the first technique the alloy of interest is placed in an ordinary Knudsen cell and the Al27 and Ti48 peak intensities are monitored as a function of composition from zero to forty atomic percent aluminum. In …
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[/table]

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[tr][td=2,1]AN INVESTIGATION OF THE INFLUENCE OF SOLID SOLUTION HARDENING ON CRACK PROPAGATION IN TITANIUM ALLOYS.[/td][td]
OCT 1969
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: C. J. Beevers; BIRMINGHAM UNIV (UNITED KINGDOM) DEPT OF PHYSICAL METALLURGY AND SCIENCE OF M ATERIALS
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
[/td][/tr]
[/table]
[/td][/tr]
[tr][td=2,1]Phase Stability and Solution Strengthening of Solid Solution Phase Titanium Alloys.[/td][td]
SEP 1969
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: J. C. Ho; P. C. Gehlen; E. W. Collings; R. I. Jaffee; BATTELLE MEMORIAL INST COLUMBUS OH COLUMBUS LABS
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
Physical property measurements carried out yielded the essential electronic and crystallographic parameters for the following prototype systems: Ti-Al and Ti-Sn, in which fairly extensive a-phase fields lead into long-range ordered alpha sub 2 (Ti3Al and Ti3Sn) phases; Ti-Mo, in which beta phase is retained over a wide range of composition, but in which the presence of the alpha and omega phases at the Ti-rich end is also of interest. (Author) …
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[/table]

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[tr][td=2,1]ABRUPT DECREASE IN TITANIUM PLASTICITY AT HIGH TEMPERATURES,[/td][td]
06 AUG 1969
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: B. A. Kolachev; V. A. Livanov; A. A. Bukhanova; N. Ya. Guselnikov; FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO; FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
An investigation showed that an abrupt drop in plasticity is observed in vacuum-treated titanium in the 300-500C interval. In titanium saturated with hydrogen, hydrogen brittleness is superimposed on this drop at low rates of stretching. The hydrogen brittleness is caused by directional diffusion of hydrogen toward imperfections of the crystal structure and toward grain boundaries. The effect of hydrogen on titanium properties in this interval of temperatures …
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[/table]

[/td][/tr]
[tr][td=2,1]Workability Testing Techniques.[/td][td]
JUN 1969
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Albert L. Hoffmanner; TRW INC CLEVELAND OH
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
[/td][/tr]
[/table]
[/td][/tr]
[tr][td=2,1]Relationship of Structure to Strength in Titanium Alloys.[/td][td]
JUN 1969
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: John F. Breedis; M. Kishen Koul; MASSACHUSETTS INST OF TECH CAMBRIDGE
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The formation of the omega and alpha phases on quenching and aging and of martensite under an applied stress has been studied in binary, beta isomorphous titanium alloys containing molybdenum, niobium and vanadium. Thermodynamic calculations using the regular solution approximation reveal that the beta phase of niobium-and vanadium-containing alloys exhibit a tendency for phase separation while a tendency for ordering exists in titanium-molybdenum. Compositional fluctuations in the beta phase can …
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[/table]

[/td][/tr]
[tr][td=2,1]DMIC REVIEW OF RECENT DEVELOPMENTS: TITANIUM AND TITANIUM ALLOYS,[/td][td]
23 AUG 1968
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: R. A. Wood; D. J. Maykuth; BATTELLE MEMORIAL INST COLUMBUS OH DEFENSE METALS INFORMATION CENTER
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The report discusses some of the proceedings of the International Conference on Titanium. Developments on and uses of titanium are reported for aircraft and aerospace uses.
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[/table]

[/td][/tr]
[tr][td=2,1]EFFECTS OF ENVIRONMENT ON THE FRACTURE BEHAVIOR OF TITANIUM AND ITS ALLOYS.[/td][td]
AUG 1968
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: A. J. Sedriks; E. N. Pugh; MARTIN MARIETTA CORP BALTIMORE MD RESEARCH INST FOR ADVANCED STUDIES
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
A study was made of the mechanisms of stress-corrosion cracking (SCC) of titanium and Ti-Al alloys in methanol-iodine solutions. The path of cracking was found to depend on the composition of the alloy. In pure titanium and a Ti-2.09 w/o Al alloy SCC is intergranular. In higher alloys (> 5 w/o Al) only the initial part of the crack is intergranular, the later formed transgranular propagation stage exhibiting cleavage markings. …
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[/table]

[/td][/tr]
[tr][td=2,1]Residual Stresses, Stress Relief, and Annealing of Titanium and Titanium Alloys.[/td][td]
01 JUL 1968
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: D. J. Maykuth; BATTELLE MEMORIAL INST COLUMBUS OH DEFENSE METALS INFORMATION CENTER
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The report discusses both theory and practice related to the occurrence and elimination of residual stresses in titanium and its alloys. Following a brief section on the general principles of heat treatment of titanium alloys, a description of the origin and effects of residual stresses due to forming, specifically, of the Bauschinger Effect, is presented. Additional data covers residual stresses due to mechanical operations such as grinding, shot peening, grit …
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[/table]

[/td][/tr]
[tr][td=2,1]CALCULATION OF REGULAR SOLUTION PHASE DIAGRAMS FOR TITANIUM BASE BINARY SYSTEMS.[/td][td]
APR 1968
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Larry Kaufman; Harold Bernstein; MANLABS INC CAMBRIDGE MASS
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Previously developed computer techniques for calculating phase equilibria between regular solution phases and line compound-regular solution equilibria have been employed to compute binary phase diagrams for twenty titanium base systems including most of the transition metals and aluminum. Comparison with experimentally observed diagrams yields satisfactory agreement. The description includes the activity of each component as well as the heat of formation of compound phases. Extension of this method to ternary …
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[/table]

[/td][/tr]
[tr][td=2,1]COMPILATION OF TENSILE AND CREEP RUPTURE DATA OF SEVERAL AL, MG, TI, AND STEEL ALLOYS, AND NI SUPERALLOYS.[/td][td]
APR 1968
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: AIR FORCE MATERIALS LAB WRIGHT-PATTERSON AFB OH
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
A program was conducted to determine the feasibility and possible advantage of processing conventional creep data through the use of computer program technology and to make generally available previously unpublished creep data. Computer programs were developed to fit data, make necessary calculations, tabulate results, and plot finished curves ready for design use. Raw creep data on 24 materials conducted over several years were processed and are presented in the normal …
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[/table]

[/td][/tr]
[tr][td=2,1]REVIEW OF RECENT DEVELOPMENTS. TITANIUM AND TITANIUM ALLOYS,[/td][td]
05 DEC 1967
[/td][td]
4 pages
[/td][/tr]
[tr][td=5,1]Authors: R. A. Wood; BATTELLE MEMORIAL INST COLUMBUS OH DEFENSE METALS INFORMATION CENTER [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
[/td][/tr]
[/table]
[/td][/tr]
[tr][td=2,1]DIFFUSION BONDING OF TITANIUM AND BERYLLIUM.[/td][td]
DEC 1967
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Julian P. King Jr.; Rocco P. Robelotto; Albert C. Dillingham Jr; NORTH AMERICAN ROCKWELL CORP LOS ANGELES CA LOS ANGELES DIV
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
[/td][/tr]
[/table]
[/td][/tr]
[tr][td=2,1]METASTABLE PHASES IN ALLOYS OF TITANIUM, THE MECHANISM AND KINETICS OF THEIR FORMATION (METASTABILNYE FAZY V SPLAVAKH TITANA, MEKHANIZM I KINETIKA IKH OBRAZOVANIYA),[/td][td]
13 OCT 1967
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: S. G. Fedotov; FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
A short review is given with 56 references followed by the author’s expts. for detg. Young’s and shear moduli, as well as Poisson coeffs. in quenched and annealed alloys of the following systems: Ti-Mo, Ti-V, Ti-Nb, Ti-Mo-V, Ti-V-Nb, and Ti-Mo-V-Nb. Elastic properties of alpha-Ti are twice those of beta-Ti. With annealed specimens the alloying ingredients lowered elastic properties of alpha-Ti, the more lowered were the elastic properties of the resp. …
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[/table]

[/td][/tr]
[tr][td=2,1]MECHANICAL PROPERTIES OF ANISOTROPIC TITANIUM ALLOY TI-5AL-2.5 SN.[/td][td]
18 SEP 1967
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Ralph Papirno; Peter Kyle; ALLIED RESEARCH ASSOCIATES INC CONCORD MA
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Experimental determinations of the anisotropy parameter R for textured titanium alloy Ti-5Al-2.5Sn in sheet form were determined from uniaxial and biaxial data based upon the Hill-Backofen plasticity theory for anisotropic materials. Uniaxial stress-strain and transverse width-thickness plastic strain data from strain gage measurements were employed to obtain uniaxial values of R. The biaxial yield strength from 1:1 stress ratio bulge tests were used with the uniaxial yield strength for the …
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[/table]

[/td][/tr]
[tr][td=2,1]FORMING OF TITANIUM AND TITANIUM ALLOYS,[/td][td]
01 SEP 1967
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Daniel E. Strohecker; BATTELLE MEMORIAL INST COLUMBUS OH DEFENSE METALS INFORMATION CENTER
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report represents a portion of the information contained in the March, 1967, revised edition of the ‘Aircraft Designer’s Handbook for Titanium and Titanium Alloys’ which was prepared by the Defense Metals Information Center under the joint sponsorship of the U. S. Air Force Research and Technology Division, and the Federal Aviation Agency. The important techniques discussed include; (1) brake forming, (2) stretch forming, (3) deep drawing, (4) trapped-rubber forming, …
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[/table]

[/td][/tr]
[tr][td=2,1]DEVELOPMENT OF TOUGH HIGH-STRENGTH ALPHA-BETA TITANIUM-BASE ALLOYS AT 240,000-260,000 PSI YIELD STRENGTH LEVEL.[/td][td]
SEP 1967
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: P. A. Farrar; H. Margolin; NEW YORK UNIV N Y RESEARCH DIV
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
In order to develop titanium alloys with higher ductilities and 0.1% yield strengths in the range of 190,000 to 240,000 psi and usable ductility in the range from 240,000 to 260,000 psi, a total of 57 eight-pound and 2 ten-pound ingots were investigated. Eight alloys which showed promising properties in the 190,000-240,000 psi range as 8 lb. ingots were remelted as 80 lb. ingots for further evaluation as bar, plate …
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[/table]

[/td][/tr]
[tr][td=2,1]INVESTIGATION OF MAGNITUDE AND DISTRIBUTION OF STRESSES IN WELDED STRUCTURES.[/td][td]
SEP 1967
[/td][td]
103 pages
[/td][/tr]
[tr][td=5,1]Authors: Rocco Robelotto; Albert Toy; John M. Lambase; NORTH AMERICAN AVIATION INC LOS ANGELES CA LOS ANGELES DIV [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
[/td][/tr]
[/table]
[/td][/tr]
[tr][td=2,1]RESEARCH AND DEVELOPMENT OF PHYSICAL METALLURGY OF TITANIUM.[/td][td]
APR 1967
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Frank A. Crossley; IIT RESEARCH INST CHICAGO ILL
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The objectives of the program were to determine the following: (1) the effects of the ternary alpha-soluble additions oxygen, tin, and zirconium, and the beta-stabilizing additions columbium, molybdenum, and vanadium on the extent of Ti-Al primary alpha; (2) the effects of these ternary additions on the kinetics of precipitation of Ti3Al; and (3) the relationships of the foregoing to mechanical properties. The most significant findings of the three-part study were …
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[/table]

[/td][/tr]
[tr][td=2,1]AIRCRAFT DESIGNER’S HANDBOOK FOR TITANIUM AND TITANIUM ALLOYS.[/td][td]
MAR 1967
[/td][td]
583 pages
[/td][/tr]
[tr][td=5,1]Authors: R. A. Wood; J. A. Gurklis; C. T. Olofson; D. E. Strohecker; D. G. Howden; BATTELLE MEMORIAL INST COLUMBUS OH DEFENSE METALS INFORMATION CENTER [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This represents a second edition of an earlier handbook bearing the same title and the designation SST 65-8, dated August, 1965. The handbook represents a collection of data from many sources on the properties and fabrication characteristics of commercially pure titanium and eight titanium alloys including Ti-5Al-2.5Sn, Ti-8Al-1Mo-1V, Ti-6Al-4V, Ti-6Al-6V-2SN, Ti-13V-11Cr-3Al, Ti-4Al-3Mo-1V, Ti-2.25Al-11Sn-5Zr-1Mo-0.2Si and Ti-6Al-2Sn-4Zr-2Mo. Section 1 describes the metallurgical characteristics of titanium and these alloys. Sections 2, 3, and …
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[/table]

[/td][/tr]
[tr][td=2,1]MECHANICAL INSTABILITY OF ALLOY TI-6AL-4V UNDER LARGE EXTENSIONAL VIBRATIONS.[/td][td]
FEB 1967
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: W. P. Mason; COLUMBIA UNIV NEW YORK INST FOR THE STUDY OF FATIGUE AND RELIABILITY
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
High amplitude internal friction measurements have been made on 7075 aluminum and the alloy Ti-6Al-4V. The aluminum shows the three dislocation phases present for most metals. This ends in fatigue at slightly higher strains than measured. The titanium alloy shows mechanical instability at strains from 1 to 0.003. This instability manifests itself in a sudden decrease in the elastic modulus and increase in the internal friction both to values as …
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[/table]

[/td][/tr]
[tr][td=2,1]DIFFUSION BONDED TITANIUM ALLOY HONEYCOMB PANELS.[/td][td]
JAN 1967
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Peter R. McGowan; Neil R. Williams; Jeffrey I. Allyn; DOUGLAS AIRCRAFT CO LONG BEACH CA AIRCRAFT DIV
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
A vacuumatic furnace technique for diffusion bonding of titanium alloy honeycomb sandwich panels with 8Al-1Mo-1V faces and commercially pure core is presented. Elevated temperature distortion in matched dies caused deformation in the finished panels. A dead weight loading method as a substitute improved the deformation but did not result in as good a bond. Various coupon tests were conducted on specimens from small flat panels and from a dead weight …
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[/table]

[/td][/tr]
[tr][td=2,1]INTERMITTENT CREEP AND STABILITY OF MATERIALS FOR SST APPLICATIONS.[/td][td]
JAN 1967
[/td][td]
206 pages
[/td][/tr]
[tr][td=5,1]Authors: Oscar N. Thompson; Richard L. Jones; GENERAL DYNAMICS CORP FORT WORTH TX [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The creep rate and metallurgical stability were investigated of candidate materials for a supersonic transport airplane when exposed to heat alone and to creep loading at temperatures of 550 or 650 F. Specimens were exposed to intermittent heating and to creep loading for times of 1000, 5000, 10,000 and 30,000 hours and, also, to steady heating and to creep loading for 30,000 hours. The materials tested were Ti-8Al-1Mo-1V (duplex annealed) …
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[/table]

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[tr][td=2,1]ANALYSIS OF STRESS-CORROSION CRACKING OF TI-6AL-4V FUEL TANK MATERIAL IN METHYL ALCOHOL.[/td][td]
JAN 1967
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: D. A. Meyn; e. p. dahlberg; C. D. Beachem; NAVAL RESEARCH LAB WASHINGTON D C
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Material from a high yield strength 6Al-4V titanium alloy space vehicle fuel tank was found to be susceptible to stress-corrosion cracking in methyl alcohol by an unidentified cleavage mechanism. Cracks propagated in contact with methanol at plane strain stress intensities as low as 15 ksi in. The same material was found to be somewhat susceptible to cracking in distilled water, by the same mechanism, with a crack propagating at a …
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[/table]

[/td][/tr]
[tr][td=2,1]HEAT TREATMENT AND MECHANICAL PROPERTIES OF TI-7AL-2.5MO ALLOY,[/td][td]
NOV 1966
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: A. G. S. Morton; NAVY MARINE ENGINEERING LAB ANNAPOLIS MD
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
A production heat of Ti-7Al-2.5Mo in 1- and 2-inch plate thickness was evaluated. Mechanical properties were found to be uniform throughout the plates. Heat treatment studies showed that the 0.2 percent offset yield strength could be increased from 109 to 127 ksi while still maintaining adequate toughness. Mechanical properties in the heat-treated condition are reported. The Ti-Al-Mo family of alloys are strong candidates in the Titanium Hull Program, and additional …
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[tr][td=2,1]FATIGUE, CREEP AND STRESS-RUPTURE PROPERTIES OF TI-13V-11CR-3AL TITANIUM ALLOY (B120-VCA).[/td][td]
SEP 1966
[/td][td]
77 pages
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[tr][td=5,1]Authors: Allan A. Blatherwick; Austris Cers; MINNESOTA UNIV MINNEAPOLIS DEPT OF AERONAUTICS AND ENGINEERING MECHANICS [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
A fatigue and creep-rupture testing program was conducted on solution-treated and aged sheet specimens of titanium alloy B-120VCA at room and elevated temperatures. Data on aged bar stock, previously tested, are also included for comparison. All tests were conducted in axial-stress machines with various combinations of alternating and mean stresses. Notched as well as smooth specimens were used. The data are presented in the form of S-N and creep rupture …
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[tr][td=2,1]A STUDY OF THE CRYSTAL STRUCTURE OF TI-AL ALLOYS AND HYDROGEN INDUCED EXPANSIONS.[/td][td]
SEP 1966
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: H. Portisch; H. Margolin; NEW YORK UNIV NY ENGINEERING RESEARCH DIV
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
The structure of a Ti-Al phase reported on gamma Ti3Al has been found by single crystal x-ray studies to be alpha Ti with superlattice spots of Ti3Al. A surface expansion, found to occur after etching alloys containing 9.5-12.5 wt% Al, occurs as a result of hydrogen picked up by etching. It is proposed that hydrogen initially enters octahedral sites of Ti3Al coherent with alpha Ti and later shifts to the …
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[/td][/tr]
[tr][td=2,1]DESIGN ALLOWABLES ON ANNEALED TITANIUM SHEET.[/td][td]
SEP 1966
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: J. M. Riordan; NORTH AMERICAN AVIATION INC LOS ANGELES CALIF
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
A program to develop Mechanical Property Design Allowables on several annealed titanium sheet alloys is described. The test program described is being performed within the guidelines of the MIL Hndbk-5 Committee. The Procurement of test materials in the desired thickness ranges and number of production heats has been explored and a procurement order has been issued for 50 percent of the test material desired. The test materials and thickness ranges …
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[tr][td=2,1]MONOTONIC AND COMPLETELY REVERSED CYCLIC STRESS-STRAIN AND FATIGUE BEHAVIOR OF REPRESENTATIVE AIRCRAFT METALS.[/td][td]
JUN 1966
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: T. Endo; JoDean Morrow; ILLINOIS UNIV URBANA DEPT OF THEORETICAL AND APPLIED MECHANICS
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
Monotonic and cyclic stress-strain and fatigue behavior in the life range of approximately 10 to 100,000 cycles are experimentally determined for 2024-T4 and 7075-T6 aluminum alloys, SAE 4340 steel (quenched and tempered at 1000F), and titanium alloy 8-1-1. The purpose of the investigation is to establish the necessary materials information and base line fatigue data for cumulative damage studies. Plots of the fatigue life as function of elastic, plastic and …
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[table=98%]
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[tr][td=15%]Total Results: 8
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[tr][td=2,1]Laser-Beam Welding Process Development.
[/td][td]
SEP 1970
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: David Kloepper; GRUMMAN AEROSPACE CORP BETHPAGE NY
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
The program objective was to develop pulsed laser beam welding techniques, demonstrate their use in production applications, and improve welding equipment. (Author)
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[tr][td=2,1]TRAILER-MOUNTED WELDING SHOP.[/td][td]
APR 1968
[/td][td]
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[tr][td=5,1]Authors: PITTSBURGH UNIV WASHINGTON DC RESEARCH STAFF
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
This technical information report describes a lightweight, mobile welding shop designed to provide field forces with a previously unavailable facility for both gas and electric arc welding. The shop contains a 300-amp DC, gasoline-driven welding machine designed to provide both constant current and constant voltage. The 800-pound, skid-mounted welding machine can accommodate metal arc welding with flux-coated electrodes, metal inert-gas (MIG) welding, and tungsten inert-gas (TIG) welding. In addition, the …
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[tr][td=2,1]RELIABILITY OF MICROELECTRONIC CIRCUIT CONNECTIONS.[/td][td]
SEP 1967
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[tr][td=5,1]Authors: R. D. Bryant; M. H. Bester; J. L. Behhedahl; A. G. Gross; NORTH AMERICAN AVIATION INC ANAHEIM CA AUTONETICS DIV
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report describes the test program used for establishing failure rates of lap soldered and parallel gap welded microelectronic circuit connections in environmental tests simulating condition of usage. In order to determine failure rates based on pre-program estimates (0.00001%/1000 hours at 90 percent confidence level), it would require accumulating a billion joint hours without failure; a program considered prohibitive from a cost standpoint. An alternate method was adopted which involved …
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[tr][td=2,1]INFLUENCE OF PLASTIC DEFORMATION IN THE WELDING PROCESS ON THE STRENGTH OF WELDED JOINT CONNECTIONS (VLIYANIE PLASTICHESKOGO DEFORMIROVANIYA V PROTSESSE SVARKI NA PROCHNOST SVARNYKH STYKOVYKH SOEDINENII),[/td][td]
30 AUG 1967
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: I. P. Zamyatin; FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
Investigations were conducted on alloyed steel to determine the value of plastic deformation in the welding process. Results of the investigation showed that plastic deformation in the welding process opens new possibilities of improving the mechanical indices of welded joints. (Author)
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[tr][td=2,1]SOLIDIFICATION AND SEGREGATION IN WELDING OF BINARY ALLOYS.[/td][td]
JUN 1967
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[/td][/tr]
[tr][td=5,1]Authors: Warren C. Malatesta; Donald C. Buffum; ARMY MATERIALS RESEARCH AGENCY WATERTOWN MASS
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
The report concerns the initial effort of a long-range program designed to determine the effects that welding variables and base metal chemistry have upon the solidification mode of weld metals. To minimize the complexity of the problem, two relatively pure binary alloys having high solid solubility were selected as parent materials. Weld metals were produced in these parent materials, using a stationary inert-gas shielded tungsten arc and a constant current …
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[tr][td=2,1]WELDING PRODUCTION, NO. 4 1965: SELECTED ARTICLES.[/td][td]
01 APR 1966
[/td][td]
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[tr][td=5,1]Authors: FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
Automatic welding with a consumable electrode on the vertical plane gives results of a study of the conditions for forming metal welds on the vertical plane during welding of steel VNS5 in a medium of inert gas; caused of the formation of pores in welded titanium joints examines the influence of hydrogen, nitrogen, oxygen, and air on the formation of pores, the interaction of the gases among themselves and with …
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[tr][td=2,1]EXPLORATORY DEVELOPMENT WORK ON FAMILIES OF WELDED FITTINGS FOR ROCKET FLUID SYSTEMS.[/td][td]
OCT 1965
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: W. D. Padian; J. M. Lambase; R. P. Robelotto; NORTH AMERICAN AVIATION INC LOS ANGELES CA
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
A 14-month program was conducted to develop equipment and procedures for fabricating rocket fluid systems by automatic fusion welding techniques. Extensive tooling for in-place welding and maching was designed and built. Weldability studies were conducted on AISI 347 stainless steel and 6061-T6 aluminum in the 1/8- to 3-in. dia and 0.010- to 0.250-in. wall thickness ranges. Limited studies were conducted which established the feasibility of extending the concepts developed for …
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[/table]

[/td][/tr]
[tr][td=2,1]WELDING OF PLASTICS BY VIBROFRICTION,[/td][td]
OCT 1965
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: A. P. Anigimova; R. I. Zakson; ARMY FOREIGN SCIENCE AND TECHNOLOGY CENTER CHARLOTTESVILLE VA
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[/table]
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[table=98%]
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[tr][td=15%]Total Results: 2454
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Pages: Previous [1] 2 3 4 5 6 7 8 9 10 11 Next
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[tr][td]Sort by:[/td][td=80]Title[/td][td=80]Date [/td][td=80]Pages[/td][td=60]Display:[/td][td=150]
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[tr][td][table=98%]
[tr][td=2,1]CMC Behavior and Life Modeling Workshop Summary Report (Preprint)
[/td][td]
Nov 2011
[/td][td]
9 pages
[/td][/tr]
[tr][td=5,1]Authors: Craig Przybyla; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH MATERIALS AND MANUFACTURING DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The Ceramic Matrix Composite (CMC) Behavior and Life Modeling Workshop was held in Dayton, Ohio at the Hilton Garden Inn (3520 Pentagon Park Blvd, Dayton, Ohio, USA 45431) on August 3-4th, 2011. Leaders from the major aero jet engine manufacturers, airframe structure manufactures, and government researchers working on the development and use of CMCs for hot structures were invited to the workshop along with several experts from academia to discuss …
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[tr][td=2,1]Limited Evaluation of AIM-9 Control Surface Effects on F-16 LCO Characteristics[/td][td]
AUG 2011
[/td][td]
13 pages
[/td][/tr]
[tr][td=5,1]Authors: Anthony P. Massett; Reinald G. Groult; Robert T. Ungerman; Jason B. Honabarger; Jared E. Salk; Pierluigi De Paolis; Timothy R. Jorris; AIR FORCE FLIGHT TEST CENTER EDWARDS AFB CA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Limit Cycle Oscillation (LCO) is a self-sustained airframe structural response due to interaction between airframe aeroelastic properties and flight condition aerodynamic effects. F-16 LCO has typically resulted in lateral motions of the fuselage and crew that could have operational impacts on such things as pilot fatigue, weapons tracking or structural integrity. Historic flight test data could not isolate the effect that aerodynamic differences had on LCO over mass and inertia …
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[/td][/tr]
[tr][td=2,1]Optimal Parameters for Maneuverability of Affordable Precision Munitions[/td][td]
Aug 2011
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Frank Fresconi; Ilmars Celmins; Luisa Fairfax; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
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[tr][td=6,1][table=98%]
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High maneuverability of guided projectiles enables engagement of fleeing targets, opens the area of influence of a weapons system, and allows new missions to be performed such as prosecuting targets in defilade. Gun-launched precision munitions have unique constraints that create technical barriers to achieving enhanced maneuverability. Structural integrity during the gun launch event, packaging control surfaces within the launch tube, and affordability are paramount concerns. This work is a fundamental …
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[/td][/tr]
[tr][td=2,1]Exploration of Questions Regarding Modelling of Crack Growth Behaviour under Practical Combinations of Aircraft Spectra, Stress Levels and Materials[/td][td]
Jul 2011
[/td][td]
95 pages
[/td][/tr]
[tr][td=5,1]Authors: P Jackson; C Wallbrink; K Walker; D Mongru; W Hu; DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION VICTORIA (AUSTRALIA) AIR VEHICLES DIV [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Qustions regarding the most appropriate crack growth modeling tools in aircraft structural analysis have been asked of the Fatigue Methods and Standards Group within AVD Continuing the Group’s previous endeavours along these lines this report commences by stating the questions that will be explored and then individually examining the issues using both experimental data from coupon tests run under typical aircraft spectra and results from various crack growth prediction models. …
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[tr][td=2,1]Effects of Contoured Pallets on AMC Mission Efficiency[/td][td]
JUN 2011
[/td][td]
64 pages
[/td][/tr]
[tr][td=5,1]Authors: James R. Hanford; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Pallets airlifted on Boeing 747s and MD-11s in fiscal year 2009 were analyzed to determine the effects of redistributing cargo from full cubes to contoured shapes. Specifically, the research analyzed the possibility of structuring pallet build strategies that would ensure that MD-11 missions were not cancelled due to lack of available contour-compatible cargo while other, full-cubed cargo was available. Missions were tracked on these airframes between Dover Air Force Base, …
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[tr][td=2,1]Aerodynamic Characterizations of Asymmetric and Maneuvering 105-, 120-, and 155-mm Fin-Stabilized Projectiles Derived from Telemetry Experiments[/td][td]
Apr 2011
[/td][td]
54 pages
[/td][/tr]
[tr][td=5,1]Authors: Frank Fresconi; Tom Harkins; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Accurate knowledge of candidate projectiles aerodynamics is crucial for successful development of tube- and gun-launched precision munitions. This is especially true when control authority is low, as is often the case with rolling projectiles. In these instances, truth models of the projectiles flight characteristics need to be of sufficient quality to enable the guidance, navigation, and control (GNC) system to produce efficient corrective maneuvers. Recently, the U.S. Army conducted instrumented …
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[tr][td=2,1]Advanced Computational Methods for Study of Electromagnetic Compatibility[/td][td]
31 MAR 2011
[/td][td]
18 pages
[/td][/tr]
[tr][td=5,1]Authors: Oscar Bruno; Catalin Turc; MATHEMATICAL SYSTEMS AND SOLUTIONS INC PASADENA CA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
We have developed a variety of electromagnetic scattering solvers whose combined use enables solution of a wide range of problems in the field of electromagnetic compatibility. In particular, we 1) Developed surface integral equations for homogeneous and isotropic dielectric bodies whose bounding surfaces can contain corners and edges, and that incorporate regularizations which give rise to favorable eigenvalue distributions and small numbers of GMRES iterations; 2) Implemented a fast high-order …
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[/td][/tr]
[tr][td=2,1]Titanium Sandwich Airframe Structure. Volume 1: Program Overview[/td][td]
Mar 2011
[/td][td]
39 pages
[/td][/tr]
[tr][td=5,1]Authors: Gregory R Jones; BENECOR INC WICHITA KS [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Mechanical properties of laser welded titanium (Grade 9, Ti3Al2.5V) honeycomb core have been developed by testing for density, compression, and plate shear using the applicable ASTM test standards. Additionally, panels were fabricated employing the same titanium honeycomb core material, constructed using bismaleimide (BMI) face sheets and a cyanate esther film adhesive. These panels were tested using applicable ASTM standards for tension and beam flexure of bonded panels. Much of the …
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[/td][/tr]
[tr][td=2,1]Non-Destructive Evaluation of Aircraft Structural Components and Composite Materials at DSTO Using Sonic Thermography[/td][td]
FEB 2011
[/td][td]
70 pages
[/td][/tr]
[tr][td=5,1]Authors: Kelly A. Tsoi; Nik Rajic; DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION VICTORIA (AUSTRALIA) AIR VEHICLES DIV [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report outlines the results of a series of non-destructive evaluations using sonic thermography. It examines the detection of closed cracks, delaminations, impact damage and other defects in a variety of structural components and composite materials used in aircraft structures. The results confirm the efficacy of the technique and highlight its potential to fill some of the capability gaps that currently exist in relation to challenging non-destructive inspection problems.
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[tr][td=2,1]Air Vehicle Integration and Technology Research (AVIATR). Delivery Order 0002: Condition-Based Maintenance Plus Structural Integrity (CBM+SI) Strategy Development[/td][td]
NOV 2010
[/td][td]
167 pages
[/td][/tr]
[tr][td=5,1]Authors: Dale Ball; Joe Lougheed; LOCKHEED MARTIN AERONAUTICAL SYSTEMS MARIETTA GA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Military aircraft platforms are currently confronted by two pressing issues: increasing maintenance costs and decreasing availability. Nearly 30% of Air Force platform Operations & Support (O&S) costs are for structure inspection and repair. Condition-Based Maintenance plus Structural Integrity (CBM+SI) offers an opportunity to achieve significant platform availability increases and maintenance hour per flight hour decreases. A promising solution to both of these issues is the application and integration of CBM+ …
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[tr][td=2,1]Probability Based Integration of Structural Health Monitoring into the Aging Aircraft Sustainment Program[/td][td]
02 AUG 2010
[/td][td]
9 pages
[/td][/tr]
[tr][td=5,1]Authors: Raphael T. Haftka; Fuh-Gwo Yuan; Nam-Ho Kim; FLORIDA UNIV GAINESVILLE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The research focused on improvements in diagnosis and prognosis of crack detection through extensive use of probabilistic techniques. A unique feature of the research is that it identifies the material properties relevant to damage propagation at the same time that it performs diagnosis and prognosis. As such, it has the potential of turning aircraft into flying fatigue laboratories and contributing to substantial improvements in the accuracy of aircraft digital twins. …
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[/td][/tr]
[tr][td=2,1]Study on Rotorcraft Safety and Survivability[/td][td]
MAY 2010
[/td][td]
26 pages
[/td][/tr]
[tr][td=5,1]Authors: Mark Couch; Dennis Lindell; DEFENSE ACQUISITION UNIV FT BELVOIR VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
During Operation Enduring Freedom and Operation Iraqi Freedom (OEF/OIF), there were 375 rotorcraft losses with 496 fatalities from October 2001 to September 2009. Mishaps accounted for 81 percent of all losses with combat losses (i.e., aircraft shootdowns) accounting for the remaining 19 percent; 73 percent of the fatalities occurred in a combat theater. The OEF/OIF combat hostile action loss rate is seven times lower than Vietnam. Aircraft vulnerability reduction design …
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[tr][td=2,1]X-HALE: A Very Flexible UAV for Nonlinear Aeroelastic Tests[/td][td]
Apr 2010
[/td][td]
24 pages
[/td][/tr]
[tr][td=5,1]Authors: Carlos E Cesnik; Patrick J Senatore; Weihua Su; Ella M Atkins; Christopher M Shearer; Nathan A Pitcher; MICHIGAN UNIV ANN ARBOR DEPT OF AEROSPACE ENGINEERING [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The University of Michigan has designed and is currently building an unmanned aerial vehicle, denoted X-HALE, which is aeroelastically representative of very flexible aircraft. The objective of this test bed is to collect unique data of the geometrically nonlinear aeroelastic response coupled with the flight dynamics to be used for future code validation. The aircraft will present specific aeroelastic features (e.g., coupled rigid/elastic body instability, large wing deflection during gust, …
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[tr][td=2,1]F-16 Ventral Fin Buffet Alleviation Using Piezoelectric Actuators[/td][td]
Sep-2009
[/td][td]
122 pages
[/td][/tr]
[tr][td=5,1]Authors: Joseph S Browning; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH DEPT OF AERONAUTICS AND ASTRONAUTICS [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Buffet-induced vibrations can have a disastrous impact on aircraft structures. Early attempts at combating buffet vibrations included passive methods such as structural enhancements and leading edge fences. Active methods have shown greater promise, including active airflow control, control surface modulation, and active structural control using piezoelectric actuators. Surface mounted piezoelectric actuators impart directional strain reducing the negative effects associated with harmful vibration. The Block-15 F-16 ventral fin represents an aircraft …
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[tr][td=2,1]Airframe Structures Technology for Future Systems[/td][td]
SEP 2009
[/td][td]
10 pages
[/td][/tr]
[tr][td=5,1]Authors: Joseph M. Manter; Donald B. Paul; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH AIR VEHICLES DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
An overview of future structures technology for military air vehicles is given. The overview is prefaced by a discussion of the factors influencing structures research today. The key to meeting affordability and rapid technology insertion is identified as simulation-based prototyping, including certification by analysis. Other enabling structures technology candidates for future systems are discussed, including multi-functional structures, extreme environment structures, affordable composite structures and active flow control for structures applications. …
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[tr][td=2,1]Fixed-Wing Air Support Planning Models for the Brigade Combat Team[/td][td]
12-Jun-2009
[/td][td]
98 pages
[/td][/tr]
[tr][td=5,1]Authors: Scott C Campbell; ARMY COMMAND AND GENERAL STAFF COLL FORT LEAVENWORTH KS [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The Army’s transformation to the brigade combat team (BCT) as its primary combat employment unit has come at the cost of reduced organic firepower and armor under the modular force concept. As a result, greater emphasis and dependence will likely be placed upon fixed-wing fires in support of the BCT. Simultaneously, Air Force aircraft continue to experience reduced mission capable (MC) rates due to sustained combat operations and airframe fatigue. …
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[tr][td=2,1]A Gimbaled Platform for Micro Aerial Vehicle Autopilot Simulation and Calibration[/td][td]
Mar-2009
[/td][td]
24 pages
[/td][/tr]
[tr][td=5,1]Authors: Justin L Shumaker; Kamal S Ali; Lamarious Carter; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report describes a 3-degrees-of-freedom gimbaled platform designed to be used as a hardware in the loop simulator. This platform is designed to aid in the calibration and synchronization of micro aerial vehicles’ autopilot components. This platform can also be used as a simulator allowing the autopilot to fly a computer model of the airframe. This allows for the quick and efficient verification of autopilot behavior with different airframes under …
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[tr][td=2,1]The Carrier Readiness Team – Realizing the Vision of the Naval Aviation Enterprise[/td][td]
Mar-2009
[/td][td]
145 pages
[/td][/tr]
[tr][td=5,1]Authors: LeFon; Carroll F Jr; NAVAL POSTGRADUATE SCHOOL MONTEREY CA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Naval aviation is a large and complex operation, with multiple stakeholders and an ingrained tension between generating combat readiness for current operations and procurement funds for future capabilities. Naval aviation leadership has developed an enterprise approach to managing these often competing requirements that uses modern business process tools under the fundamental principle of alignment. This process showed remarkable results at the factory-level, with production efforts generating significant savings and process …
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[/table]

[/td][/tr]
[tr][td=2,1]Capability Gaps in USMC Medium Lift[/td][td]
20-Feb-2009
[/td][td]
12 pages
[/td][/tr]
[tr][td=5,1]Authors: Scott Harris; MARINE CORPS COMBAT DEVELOPMENT COMMAND QUANTICO VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Currently, the Marine Corps is in the process of fielding two new rotary-wing airframes which are touted to replace the venerable CH-46E. Both the MV-22 and UH-1Y airframes offer a tremendous increase in capabilities for the Marine Corps in several different flight regimes, but with the increases also come a major hole in abilities for the MAGTFs regarding medium lift capabilities. The CH-46E is an old airframe and needs to …
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[tr][td=2,1]Challenges and Issues with the Further Aging of U.S. Air Force Aircraft: Policy Options for Effective Life-Cycle Management of Resources[/td][td]
Jan-2009
[/td][td]
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[tr][td=5,1]Authors: Jean R Gebman; RAND CORP SANTA MONICA CA
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
Over the next 20 years, the further aging of already-old aircraft will introduce challenges and issues for aircraft operators, including the U.S. Air Force. This report identifies those challenges and issues and explores policy options for addressing them in ways that can contribute to effective life-cycle management of resources. The technical challenges relate to structures, propulsion, and systems. The institutional challenges include limitations on independent verification of fleet status and …
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[tr][td=2,1]Rotorcraft Brownout: Advanced Understanding, Control and Mitigation[/td][td]
31-Dec-2008
[/td][td]
22 pages
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[tr][td=5,1]Authors: J G Leishman; MARYLAND UNIV COLLEGE PARK DEPT OF AEROSPACE ENGINEERING [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The MURI team has started to undertake a carefully planned program of research, including the development of efficacious predictive models for the physical elements that may contribute to the brownout problem. This goal will be achieved by better understanding rotor and airframe aerodynamics when operating in ground effect, as well as how the interaction of rotor wake vortices with the sediment bed occurs, the particulate uplift processes, and the two-phase …
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[tr][td=2,1]Generic Design Procedures for the Repair of Acoustically Damaged Panels[/td][td]
Dec-2008
[/td][td]
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[tr][td=5,1]Authors: R J Callinan; C H Wang; S Sanderson; S C Galea; DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION VICTORIA (AUSTRALIA) AIR VEHICLES DIV
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
Acoustic fatigue is the result of high frequency lateral vibration of an aircraft panel due to time varying pressure waves caused by engine and/or aerodynamic effects. For example, acoustically induced cracks have been recorded in the lower external surface of the nacelle skin of the F/A-18 aircraft and aft fuselage. In the case of the inlet nacelle overall sound pressure levels of the order of 172 dB have been recorded. …
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[tr][td=2,1]Power Distribution System for a Small Unmanned Rotorcraft[/td][td]
Dec-2008
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12 pages
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[tr][td=5,1]Authors: Brian Porter; Gary Haas; ARMY RESEARCH LAB CLEVELAND OH VEHICLE TECHNOLOGY DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
In quest of weight savings, several modifications were made to a Joker model unmanned rotorcraft. Battery power for various subsystems was consolidated in a custom box, and smaller gauge wiring was substituted for the original. The results included a 17% increase in flight time as well as logistics benefits from fewer batteries to be recharged.
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[tr][td=2,1]Effects of Transient Power Extraction on an Integrated Hardware-in-the-Loop Aircraft/Propulsion/Power System[/td][td]
Nov-2008
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9 pages
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[tr][td=5,1]Authors: Mitch Wolff; Michael Corbett; Michael Boyd; John McNichols; Peter Lamm; KRAUSE (P C) AND ASSOCIATES WEST LAFAYETTE IN [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
As aircraft continue to increase their power and thermal demands, transient operation of the power and propulsion subsystems can no longer be neglected at the aircraft system level. The performance of the whole aircraft must be considered by examining the dynamic interactions between the power, propulsion, and airframe subsystems. Larger loading demands placed on the power and propulsion subsystems result in thrust, speed, and altitude transients that affect the aircraft …
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[tr][td=2,1]Advanced Nondestructive Evaluation (NDE) Sensor Modeling For Multisite Inspection[/td][td]
Oct-2008
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167 pages
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[tr][td=5,1]Authors: R Bossi; B Koltenbah; L Udpa; Yiming Deng; Liu Xin; Zhiwei Zeng; Satish Udpa; BOEING INFORMATION SPACE AND DEFENSE SYSTEMS SEATTLE WA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The Advanced Nondestructive Evaluation (NDE) Sensor Modeling for Multisite Inspection program has developed finite element models (FEM) of electromagnetic NDE for optimizing the inspection of aging aircraft structure. The program found excellent correlation between magnetic field strengths predicted by FEM analysis and experimental values in fastened airframe structure configurations. Applying the FEM analysis to magnetoresistive (MR) sensors inspection problems then provided useful insights into the many parameter effects associated with …
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[tr][td=2,1]Recommended Processes and Best Practices for Nondestructive Inspection (NDI) of Safety-Of-Flight Structures[/td][td]
Oct-2008
[/td][td]
97 pages
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[tr][td=5,1]Authors: John Brausch; David Campbell; Lawrence Butkus; Tommy Mullis; Michael Paulk; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH MATERIALS AND MANUFACTURING DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This document outlines critical processes, guidelines, and best practices for the nondestructive inspection (NDI) of safety-of-flight aircraft (SOF) structures. More specifically, this document provides rationale for requiring rigor in the definition, development, demonstration and implementation of NDI for United States Air Force (USAF) SOF aircraft structures. Topics include the critical role of NDI in the Aircraft Structural Integrity Program, defining inspection requirements, procedure development, capability estimation, procedure qualification, training, certification, …
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[tr][td=2,1]Effect of High Temperature Exposure on the Mechanical Properties of Cold Expanded Open Holes in 7050-T7451 Aluminium Alloy[/td][td]
Sep-2008
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[tr][td=5,1]Authors: Q Liu; P Baburamani; C Loader; DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION VICTORIA (AUSTRALIA) AIR VEHICLES DIV
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
Cold expansion of fastener holes has been widely used in the manufacture, maintenance and repair of airframe components to provide beneficial compressive residual stresses around fastener holes and to extend their fatigue life. However, some components may experience exposure to high temperatures due to operational, maintenance or accidental factors. The high temperature exposure could lead to relaxation of compressive residual stresses and potentially affect the component’s properties such as fatigue …
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[tr][td=2,1]Proposed Termination of Joint Strike Fighter (JSF) F136 Alternate Engine[/td][td]
02 JUN 2008
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Anthony Murch; Christopher Bolkcom; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
The Department of Defense’s (DOD) FY2009 budget proposes to cancel the F136 alternate engine for the F-35 Joint Strike Fighter (JSF), a program that was initiated by Congress in the FY1996 Defense Authorization Act, and which has received consistent congressional support since its inception. DOD also proposed terminating the F136 in both its FY2007 and FY2008 budgets; however, Congress rejected both of these proposals. In FY1996, defense authorization conferees (H.Rept. …
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[tr][td=2,1]Novel Concepts for Conformal Load-Bearing Antenna Structure[/td][td]
01-Feb-2008
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Paul J Callus; DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION VICTORIA (AUSTRALIA) AIR VEHICLES DIV
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report describes the activities undertaken by the author during his Defence Science Fellowship on the topic of Conformal Load-bearing Antenna Structure (CLAS) at the Air Force Research Laboratory, Air Vehicles Directorate, Structures Division, Advanced Structural Concepts Branch (AFRL/VASA), Multifunctional Structures Team at the Wright Patterson Air Force Base, Ohio, USA, from June 2006 to August 2007. The aim of CLAS is to enhance the performance and capability of air …
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[tr][td=2,1]Complex Structures for Manned/Unmanned Aerial Vehicles. Delivery Order 0019: Low Temp Composite Processing Mechanical Property Data[/td][td]
JAN 2008
[/td][td]
82 pages
[/td][/tr]
[tr][td=5,1]Authors: Chris Ridgard; ADVANCED COMPOSITES GROUP INC TULSA OK [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
After several years of effort, a new generation of out of autoclave processable resin systems has been developed which it is believed will replace older oven vacuum bag cure (OVBC) resins such as the Advanced Composites Group, Inc. (ACG) LTM45EL material. The first of these new resins, MTM45 and MTM45-1, have been demonstrated to offer mechanical performance and toughness at a level comparable to that of state-of-the-art toughened resin systems …
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[tr][td=2,1]Topology Synthesis of Distributed Actuation Systems for Morphing Wing Structures (Postprint)[/td][td]
DEC 2007
[/td][td]
12 pages
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[tr][td=5,1]Authors: Daisaku Inoyam; Brian P. Sanders; James J. Joo; DAYTON UNIV OH DEPT OF MECHANICAL AND AEROSPACE ENGINEERING [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This paper presents a novel topology optimization methodology for a synthesis of distributed actuation systems with specific applications to morphing air vehicle structures. The main emphasis is placed on the topology optimization problem formulation and the development of computational modeling concepts. The analysis model is developed to meet several important criteria: It must allow a large rigid-body displacement, as well as a variation in planform area, with minimum strain on …
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[tr][td=2,1]Design Processes and Criteria for the X-51A Flight Vehicle Airframe[/td][td]
01 NOV 2007
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[/td][/tr]
[tr][td=5,1]Authors: Jeffrey Lane; BOEING CO HUNTINGTON BEACH CA INTEGRATED DEFENSE SYSTEMS
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
Flight vehicle airframes in today’s advanced flight systems are required to optimally integrate a variety of multi-functional requirements to maximize effectiveness with acceptable risk. The X-51A airframe design process and criteria draw upon decades of successful design of both manned and unmanned flight vehicles for production and experimental intent. This paper summarizes the X-51A vehicle mission requirements, system design, design processes used for airframe synthesis, design safety factors, success criteria …
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[tr][td=2,1]Midwest Structural Sciences Center: 2006-2007 Annual Report[/td][td]
JUN 2007
[/td][td]
16 pages
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[tr][td=5,1]Authors: William A. Dick; Glaucio H. Paulino; ILLINOIS UNIV AT URBANA DIGITAL COMPUTER LAB [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The Midwest Structural Sciences Center (MSSC) is a collaboration between the Structural Sciences Center, Air Vehicles Directorate of the Air Force Research Laboratory (AFRL/VA SSC), and a team of faculty, graduate students, and professional staff researchers of the University of Illinois at Urbana-Champaign (UI). The team works closely to simulate, model, test, and assess structures and materials for use in future air- and space-frames in a risk-quantified design process. The …
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[tr][td=2,1]Airworthiness Certification Strategy for Global Hawk HALE[/td][td]
15 MAY 2007
[/td][td]
35 pages
[/td][/tr]
[tr][td=5,1]Authors: Mostafa Pourmand; NORTHROP GRUMMAN SYSTEMS CORP SAN DIEGO CA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This briefing introduces the Global Hawk High Altitude Long Endurance (HALE) platform. Design criteria and testing are reviewed.
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[tr][td=2,1]State Space Model for Autopilot Design of Aerospace Vehicles[/td][td]
MAR 2007
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[tr][td=5,1]Authors: Farhan A. Faruqi; DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION EDINBURGH (AUSTRALIA) WEAPONS SYSTEMS DIV
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report is a follow on to the report given in DSTO-TN-0449 and considers the derivation of the mathematical model for aerospace vehicles and missile autopilots in state space form. The basic equations defining the airframe dynamics are non-linear, however, since the nonlinearities are structured (in the sense that the states are of quadratic form) a novel approach of expressing this non-linear dynamics in state space form is given. This …
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[tr][td=2,1]Conformal Load-Bearing Antenna Structure for Australian Defence Force Aircraft[/td][td]
MAR 2007
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Paul J. Callus; DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION VICTORIA (AUSTRALIA) AIR VEHICLES DIV
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
Conformal Load-Bearing Antenna Structure (CLAS) replaces separate aircraft structure and antennas such as blades, wires and dishes, with electromagnetic radiators embedded in the structure. This approach reduces weight, drag and signature, and enhances electromagnetic performance, damage resistance and structural efficiency. However the design, manufacture, certification and through-life-support of CLAS are more complex than for its non-integrated counterparts. The first half of this report describes the advantages and limitations of CLAS …
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[tr][td=2,1]Micro-Stress Bound Estimate Enabled Optimization of Structural Composite Repair for the Next Generation Aircraft[/td][td]
28 FEB 2007
[/td][td]
42 pages
[/td][/tr]
[tr][td=5,1]Authors: Endel V. Iarve; Robert Lipton; DAYTON UNIV OH [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The completed effort integrated the rigorous microlevel (fiber, matrix, sizing) stress bound recently obtained by Lipton [1,2] under AFOSR sponsorship with the AFRL-developed ply level multibasis spline approximation stress analysis tools [3-5]. A robust multiscale analysis framework was developed and applied within and beyond the scope of the present grant. The developments included extension of the stress bound estimates in heterogeneous materials with periodic microstructure to include residual stress effects …
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[tr][td=2,1]Fundamental Feature Extraction Methods for the Analysis of Eddy Current Data (Preprint)[/td][td]
DEC 2006
[/td][td]
10 pages
[/td][/tr]
[tr][td=5,1]Authors: Jeremy S. Knopp; John C. Aldrin; COMPUTATIONAL TOOLS INC GURNEE IL [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The objective of this paper is to explore features in eddy current data that are sensitive to defects in airframe structures while invariant to other noise factors commonly encountered in nondestructive evaluation (NDE). In particular, one goal is to detect and quantify corrosion-induced material loss in multi-layer aircraft structures. To investigate this problem, a series of eddy current studies were performed using an analytical model for varying total subsurface thickness …
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[tr][td=2,1]Testing of 7050-T7451 Aluminum Strain-Life Coupons for a Probabilistic Strain-Life Curve[/td][td]
02 NOV 2006
[/td][td]
69 pages
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[tr][td=5,1]Authors: David T. Rusk; Robert E. Taylor; Paul C. Hoffman; NAVAL AIR WARFARE CENTER AIRCRAFT DIV PATUXENT RIVER MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Fleet life tracking is an integral part of NAVAIR s approach to ensuring the airworthiness and operational readiness of U.S. Naval Aviation assets. Historically, life limits for Naval airframe components have been derived by deterministic analyses of stress-life or strain-life fatigue models. To improve fatigue life prediction capabilities for airframe structures, NAVAIR has begun development of a Probabilistic Strain-Life model. As a first step in the development of the Probabilistic …
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[tr][td=2,1]Alenia Shm Fiber Optic Bragg Grating (Fobg) Strain Sensors Technology: Applications And Requirements[/td][td]
01-Oct-2006
[/td][td]
13 pages
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[tr][td=5,1]Authors: F P Camerlingo; G Cavaccini; A Ciliberto; C Voto; Mario Iodice; F Pezzuti; ALENIA AERONAUTICA SPA TORINO (ITALY) [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
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[tr][td=2,1]Air Vehicle Technology Integration Program (AVTIP). Delivery Order 0020: Prediction of Manufacturing Tolerances for Laminar Flow, Task 6[/td][td]
SEP 2006
[/td][td]
52 pages
[/td][/tr]
[tr][td=5,1]Authors: Anne M. Bender; Aaron Drake; NORTHROP GRUMMAN CORP EL SEGUNDO CA AIR COMBAT SYSTEMS [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The ultimate goal of the MEATLOAF study is to develop generalized criteria for the allowable size of an excrescence on a laminar flow wing to prevent premature transition. A salient feature of the study is the nondimensionalization of the critical parameters such that the results are applicable to future work and not specific to a particular airframe. Task 1 provided a database of step effects at Reynolds numbers up to …
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[tr][td=2,1]Evaluation of Crack and Corrosion Detection Sensitivity Using Piezoelectric Sensor Arrays (Preprint)[/td][td]
APR 2006
[/td][td]
10 pages
[/td][/tr]
[tr][td=5,1]Authors: James L. Blackshire; Steve Martin; Adam Cooney; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH MATERIALS AND MANUFACTURING DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The use of guided-wave ultrasound has significant potential for structural health monitoring in a number of critical aerospace applications. A key question which needs to be addressed with regard to damage sensing in realistic aircraft structures involves detection sensitivity levels for cracks and corrosion. In this research effort, a systematic evaluation of the detection sensitivity levels of surface-bonded piezoelectric sensor arrays has been undertaken using experimental studies and analytic modeling. …
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[tr][td=2,1]Experimental Analysis of Propeller Interactions With a Flexible Wing Micro-Air-Vehicle[/td][td]
23 MAR 2006
[/td][td]
149 pages
[/td][/tr]
[tr][td=5,1]Authors: Brian J. Gamble; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
An investigation into the effects of the propeller slipstream on a flexible wing micro-air-vehicle (MAV) was conducted. The Air Force Research Lab, Munitions Directorate designed a man-portable MAV with a 24 in. wingspan and 6 in. root chord to be used for battle damage assessment and reconnaissance. Two wings have been developed for this MAV. One is a rigid carbon-fiber wing and the other consists of flexible parachute material attached …
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[tr][td=2,1]A Comparison of Main Rotor Smoothing Adjustments Using Linear and Neural Network Algorithms[/td][td]
MAR 2006
[/td][td]
146 pages
[/td][/tr]
[tr][td=5,1]Authors: Nathan A. Miller; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH DEPT OF AERONAUTICS AND ASTRONAUTICS [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Helicopter main rotor smoothing is a maintenance procedure that is routinely performed to minimize airframe vibrations induced by non-uniform mass and/or aerodynamic distributions in the main rotor system. This important task is both time consuming and expensive, so improvements to the process have long been sought. Traditionally, vibrations have been minimized by calculating adjustments based on an assumed linear relationship between adjustments and vibration response. In recent years, artificial neural …
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[tr][td=2,1]Analysis and Support Initiative for Structural Technology (ASIST) Delivery Order 0027-03: Crack Growth and Stress Intensity Prediction Techniques: External K-Solver–Demonstration[/td][td]
MAR 2006
[/td][td]
122 pages
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[tr][td=5,1]Authors: Kyle Honeycutt; ANALYTICAL PROCESSES/ENGINEERED SOLUTIONS (AP/ES) INC SAINT LOUIS MO [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The challenges of designing modern aircraft continue to drive the development of more advanced analytical tools; often these more advanced analytical tools themselves require development of other enabling technologies such as powerful computers and associated software. The primary historical objective of this project was to develop the infrastructure and to demonstrate that key enabling technologies such as faster and bigger personal computers, as well as database and programming software, have …
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[tr][td=2,1]Alleviation of Buffet-Induced Vibration Using Piezoelectric Actuators[/td][td]
FEB 2006
[/td][td]
118 pages
[/td][/tr]
[tr][td=5,1]Authors: Shawn D. Morgenstern; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Buffet-induced vibration has been problematic for aircraft structures for many years. The F-16 ventral fin, while prone to these effects, lends itself well to the evaluation of modern active structural and flow control technologies. The objective of this research was to determine the most critical natural modes of vibration for the F-16 ventral fin and design piezoelectric actuators capable of reducing buffet-induced ventral fin vibration. A finite element model (FEM) …
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[tr][td=2,1]A Non-Linear Model for the Longitudinal Dynamics of a Hypersonic Air-breathing Vehicle[/td][td]
2006
[/td][td]
23 pages
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[tr][td=5,1]Authors: Michael A. Bolender; David B. Doman; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
A non-linear, physics-based model of the longitudinal dynamics for an air-breathing hypersonic vehicle is developed. The model is derived from first principles and captures the complex interactions between the propulsion system, aerodynamics, and structural dynamics. Unlike conventional aircraft, hypersonic vehicles require that the propulsion system be highly integrated into the airframe. Furthermore, hypersonic aircraft tend to have very lightweight, flexible structures that have low natural frequencies. Therefore, the first bending …
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[tr][td=2,1]Dielectric Non-Destructive Testing of Adhesively Bonded and Composite Aircraft Structures[/td][td]
31 OCT 2005
[/td][td]
13 pages
[/td][/tr]
[tr][td=5,1]Authors: Richard Pethrick; STRATHCLYDE UNIV GLASGOW (UNITED KINGDOM) [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report results from a contract tasking University of Strathclyde as follows: The contractor will investigate dielectric non-destructive inspection of adhesive bonds and bonded structures in the following areas: 1) to explore the potential of dielectric measurements for the study of boron fiber/aluminum adhesive bonded structures used for in-situ repairs of aircraft; 2) to evaluate the potential of the dielectric technique to the study of carbon fiber composite/aluminum adhesive bonded …
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[tr][td=2,1]Environmental Assessment in the UH-1Y and AH-1Z[/td][td]
OCT 2005
[/td][td]
8 pages
[/td][/tr]
[tr][td=5,1]Authors: Maura A. Rudy; NAVAL AIR SYSTEMS COMMAND PATUXENT RIVER MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The United States Marine Corps USMC Upgrade Program involves the remanufacture of all light/attack helicopters in the fleet to extend their service-life into the year 2020. In order to assess whether air quality was favorable for aircrew in the UH-1Y and AH-1Z aircraft, levels of carbon monoxide and hydrocarbons were measured during ground and flight operations. In the past, cockpit gas detection during flight was prohibitive, due to detector size …
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[tr][td=2,1]Redefining E-3 Core Competencies for Dominant Battlespace Knowledge in Future Combat Operations[/td][td]
SEP 2005
[/td][td]
73 pages
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[tr][td=5,1]Authors: David A. Kirkendall; NAVAL POSTGRADUATE SCHOOL MONTEREY CA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This thesis explores how E-3 Air Battle Managers train for and perform their duties on board the Airborne Warning and Control System. The study focuses on how E-3 training is driven by the maintenance of a set of battle management core competencies rooted in the basics of aircraft tactical fluid control force accountability and aerial refueling. The advent of a revolution in Information Management technology in the form of the …
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[tr][td=15%]Total Results: 1060
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[tr][td=2,1]Magnesium Aluminum Borides as Explosive Materials
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20 Dec 2011
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105 pages
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[tr][td=5,1]Authors: Michael L Whittaker; Raymond A Cutler; CERAMATEC INC SALT LAKE CITY UT [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The most common compounds formed from boron are boron carbide (B4C) and boron nitride (BN), which are generally not considered borides but which are included here since they are commercially available as high-quality powders. Borides are generally considered as compounds combining one, or more, metals with boron. Strong covalent bonding allows many of these borides to have high melting or decomposition temperatures, such that they can be used in reducing …
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[/table]

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[tr][td=2,1]Periodic Inspections of Hilo, Kahului, Laupahoehoe, and Nawiliwili Breakwaters, Hawaii[/td][td]
Oct 2011
[/td][td]
234 pages
[/td][/tr]
[tr][td=5,1]Authors: Glenn B Myrick; Jeffrey A Melby; Elizabeth C Burg; Kristi L Acuff; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICS LAB [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
As part of the Monitoring Completed Navigation Projects (MCNP) program Periodic Inspections Work Unit, five breakwaters from the Hawaiian Islands were inspected. The Hilo, Kahului East and West, Laupahoehoe, and Nawiliwili breakwaters were examined by walking inspection in the summer of 2005. Broken, cracked, and shifted concrete armor units and stones were recorded and overall performance of the structure was noted. Photographs were taken and detailed notes recorded at each …
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[tr][td=2,1]Multiscale Modeling of Armor Ceramics: Focus on AlON[/td][td]
Sep 2011
[/td][td]
16 pages
[/td][/tr]
[tr][td=5,1]Authors: G A Gazonas; J W McCauley; I G Batyrev; D Casem; J D Clayton; D P Dandekar; R Kraft; B M Love; B M Rice; B E Schuster; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The computational modeling linkage from the atomistic to the continuum scales of homogeneous and discrete deformation mechanisms (twinning, cleavage, micro-cracking, stacking faults, et cetera), nano- and microstructure and defects, to dynamic failure processes in brittle materials should provide pathways to designing improved mechanical performance through controlled processing. This report will review results from an internal multiscale computational program in first-principles design of armor ceramics, with a focus on an optically …
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[/table]

[/td][/tr]
[tr][td=2,1]After Effects of Welding Armor Steels[/td][td]
31 Aug 2011
[/td][td]
26 pages
[/td][/tr]
[tr][td=5,1]Authors: Matt Rogers; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
[/td][/tr]
[/table]
[/td][/tr]
[tr][td=2,1]Non-Destructive Testing of Sensor Enhanced Armor[/td][td]
09 AUG 2011
[/td][td]
7 pages
[/td][/tr]
[tr][td=5,1]Authors: Thomas Reynolds; Thomas J. Meitzler; Samuel Ebenstein; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The US Army is replacing conventional armor with new types of ballistic protection which are lighter in weight than the materials they replace yet offer the same degree of protection. A key component of this new type of armor is called Multi Functional (MFA) or Sensor Enhanced Armor (SEA) because the armor provides more capabilities than traditional ballistic protection for the soldier and ground vehicle. In this paper we shall …
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[/table]

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[tr][td=2,1]Nanoscience[/td][td]
22 Jul 2011
[/td][td]
140 pages
[/td][/tr]
[tr][td=5,1]Authors: Margaret Emery; Meganne Lemon; Ari Levine; Shayna Liebler; Gregory Wiley; DEFENSE TECHNICAL INFORMATION CENTER FORT BELVOIR VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report on nanoscience terms highlights related Technical Reports and Research Summaries that are in DTIC’s collections. These terms are divided into six categories: nanomaterials, states and properties, nanometrology, manufacturing processes, quantum phenomena, and systems and devices. The terms were pulled from a broad scope of related fields in theoretical and applied sciences and describe past, present, and future applications. Contents: Atomic Force Microscopy; Atomic Layer Deposition; Atomistic Simulation; Biomineralization; …
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[/table]

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[tr][td=2,1]Damage Development in Confined Borosilicate and Soda-Lime Glasses[/td][td]
11 Jul 2011
[/td][td]
35 pages
[/td][/tr]
[tr][td=5,1]Authors: Kathryn A Dannemann; Jr Anderson Charles E; Sidney Chocron; James F Spencer; SOUTHWEST RESEARCH INST SAN ANTONIO TX [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Post-test microscopy evaluations were performed on borosilicate (Borofloat (registered trademark) 33) and soda-lime (Starphire (registered trademark)) glass specimens following confined compression tests. These included optical and electron microscopy investigations of select specimens tested at low strain rates with confinement pressures up to 1 GPa. Specimens were evaluated following removal of the confinement sleeve or holder. The objective of this work was to investigate the flow and failure behavior of both …
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[tr][td=2,1]Numerical Analysis Study of the Failure Mechanism of Transparent Materials During Low Velocity Impact Used in Protective Systems[/td][td]
Jul 2011
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: C G Fountzoulas; R E Brennan; J M Sands; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The rapid advancement of computing power and recent advances in numerical techniques and material models have resulted in accurate simulation of ballistic impacts into multi-layer transparent armor configurations. Transparent and opaque materials are used in protective systems for enhancing survivability of ground vehicles, air vehicles, and personnel. Transparent materials are utilized for face shields, riot gear, and vehicle windows, in addition to other applications for sensor protection, including radomes and …
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[tr][td=2,1]The Influence of the General Board of the Navy on Interwar Destroyer Design[/td][td]
10 JUN 2011
[/td][td]
186 pages
[/td][/tr]
[tr][td=5,1]Authors: Jason H. Davis; ARMY COMMAND AND GENERAL STAFF COLL FORT LEAVENWORTH KS [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The United States destroyer force underwent significant design improvement during the Interwar Period. The roles and missions of the destroyers evolved from WW I to the end of WW II, based on design and tactics improvements, as well as the overall expansion of the number of destroyers and the improved capabilities of destroyers. This was especially true of the Fletcher class, introduced during the end of the interwar period. The …
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[tr][td=2,1]Incomplete Contract Files for Southwest Asia Task Orders on the Warfighter Field Operations Customer Support Contract[/td][td]
01 JUN 2011
[/td][td]
28 pages
[/td][/tr]
[tr][td=5,1]Authors: INSPECTOR GENERAL DEPT OF DEFENSE ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Our audit objective was to determine whether Army officials adhered to Federal and DoD policies for subcontracting in a contingency environment while administering the Warfighter Field Operations Customer Support (FOCUS) contract, valued at approximately $3.7 billion. This is the first in a series of audits relating to the Warfighter FOCUS contract. Program Executive Office for Simulation, Training, and Instrumentation (PEO STRI) contracting officials lacked required documentation, such as prenegotiation objective …
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[tr][td=2,1]Novel Adhesives Innovation Through Forward Looking Specifications Requirements and Database Implementation[/td][td]
Jun 2011
[/td][td]
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[tr][td=5,1]Authors: Wendy Kosik; Richard Squillacioti; Wayne Ziegler; Jared Gardner; Robert Jensen; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
The U.S. Department of Defense is tasked to respond to a wide range of asymmetric threats with speed and efficiency. Historically, the time required for moving new materials and processing technologies from research to application is roughly 40 years. The Department of the Army is actively moving toward a culture of innovation where experimentation and prudent risk taking are not only encouraged but admired. Advanced materials are the foundation to …
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[tr][td=2,1]The Ballistic and Corrosion Evaluation of Magnesium Elektron E675 vs. Baseline Magnesium Alloy AZ31B and Aluminum Alloy 5083 for Armor Applications[/td][td]
Jun 2011
[/td][td]
52 pages
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[tr][td=5,1]Authors: Tyrone Jones; Brian Placzankis; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The U.S. Army Research Laboratory has evaluated the ballistic and corrosion performance of high-strength magnesium alloy Elektron 675 for use in vehicle and personnel protection. The performance of Elektron 675 is compared to baseline magnesium alloy AZ31B and baseline aluminum alloy 5083 (AA5083). While Mg alloy E675 offers a higher ballistic protection at equal weight, Elektron 675 did not pass the corrosion resistance requirement specified in military specification MIL-DTL-32333. The …
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[/table]

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[tr][td=2,1]Exploiting Combat Experience: The U.S. Forces European Theater Study of Mechanized Cavalry Units[/td][td]
19 MAY 2011
[/td][td]
74 pages
[/td][/tr]
[tr][td=5,1]Authors: Christopher N. Prigge; ARMY COMMAND AND GENERAL STAFF COLL FORT LEAVENWORTH KS SCHOOL OF ADVANCED MILITARY STUDIES [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The U.S. Forces European Theater General Board study of mechanized cavalry units illustrates how a systemic study of combat experience can guide interconnected changes to military doctrine, organizations, and equipment. The General Board conducted its study of mechanized cavalry units between September 1945 and January 1946. The study’s final report recommended that the Army create a corps cavalry regiment that would perform the full range of traditional horse cavalry missions, …
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[/table]

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[tr][td=2,1]Optimization of One-Dimensional Aluminum Foam Armor Model for Pressure Loading (Briefing charts)[/td][td]
12 APR 2011
[/td][td]
17 pages
[/td][/tr]
[tr][td=5,1]Authors: John C. Goetz; Andres Tovar; John Renaud; NOTRE DAME UNIV IN [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
[/td][/tr]
[/table]
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[tr][td=2,1]Effect of Strain Rate on Fracture Initiation[/td][td]
22 MAR 2011
[/td][td]
33 pages
[/td][/tr]
[tr][td=5,1]Authors: Tomasz Wierzbicki; MASSACHUSETTS INST OF TECH CAMBRIDGE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This project focused on two key ways of improving armor design. The first method is by improvement of analysis through the development of testing techniques relevant to high-yield-strength steels under high strain rates and states of stress relevant to armor applications. This effort resulted in a novel method of testing steels under a variety of strain rates in which punch tests are performed in a drop tower. It also resulted …
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[/table]

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[tr][td=2,1]Effects of Surface Treatment and Interfacial Strength on the Damage Propagation in Layered Transparent Armor under Impact[/td][td]
20 MAR 2011
[/td][td]
32 pages
[/td][/tr]
[tr][td=5,1]Authors: Weinong W. Chen; PURDUE UNIV LAFAYETTE IN SCHOOL OF MATERIALS SCIENCE AND ENGINEERING [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This research program is to develop a fundamental understanding of the damage propagation through layered transparent armors under impact loading conditions. The effects of surface quality and interfacial bonding strength on the damage propagation or arrest will also be examined. During the funded period of the program, a gas gun has been developed and used to impact layered glass targets. Notched glass specimens having adhesive interfaces are impacted with plastic …
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[/table]

[/td][/tr]
[tr][td=2,1]Overview of Materials R&D at Oak Ridge National Laboratory[/td][td]
23 Aug 2010
[/td][td]
28 pages
[/td][/tr]
[tr][td=5,1]Authors: Peter F Tortorelli; OAK RIDGE NATIONAL LAB TN MATERIALS SCIENCE AND TECHNOLOGY DIV [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
[/td][/tr]
[/table]
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[tr][td=2,1]Test Operations Procedure (TOP) 4-2-013 Commodity Engineering Test Procedures, Recoilless Rifle Ammunition[/td][td]
22-Sep-2009
[/td][td]
91 pages
[/td][/tr]
[tr][td=5,1]Authors: ABERDEEN TEST CENTER MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This TOP provides guidance for planning engineering tests of recoilless rifle ammunition. It outlines test phases to be included and points out important features to be considered for each phase. The procedures apply to other types of proving ground tests of recoilless rifle ammunition as well as engineering tests.
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[/table]

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[tr][td=2,1]Fixed-Wing Air Support Planning Models for the Brigade Combat Team[/td][td]
12-Jun-2009
[/td][td]
98 pages
[/td][/tr]
[tr][td=5,1]Authors: Scott C Campbell; ARMY COMMAND AND GENERAL STAFF COLL FORT LEAVENWORTH KS [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The Army’s transformation to the brigade combat team (BCT) as its primary combat employment unit has come at the cost of reduced organic firepower and armor under the modular force concept. As a result, greater emphasis and dependence will likely be placed upon fixed-wing fires in support of the BCT. Simultaneously, Air Force aircraft continue to experience reduced mission capable (MC) rates due to sustained combat operations and airframe fatigue. …
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[/table]

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[tr][td=2,1]A Computational Study of the Energy Dissipation Through an Acrylic Target Impacted by Various Size FSP[/td][td]
Jun-2009
[/td][td]
14 pages
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[tr][td=5,1]Authors: C G Fountzoulas; J M Sands; P G Dehmer; J H Yu; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Recent advances in the numerical techniques, higher computing power and materials model have allowed the accurate simulation of the ballistic impact into monolithic and multi-layer transparent armor configurations. In the current effort, the velocity profile during the ballistic impact of 0.22-cal and 0.15-cal fragment simulating projectiles (FSP) into a polymethyl-methacrylate (PMMA) target, which was a Plexiglas G manufactured by Atofina Chemicals was simulated using the ANSYS/AUTODYN commercial software. Our successful …
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[/table]

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[tr][td=2,1]Operational Leadership and Advancing Technology[/td][td]
04-May-2009
[/td][td]
21 pages
[/td][/tr]
[tr][td=5,1]Authors: Rodney R LeMay; NAVAL WAR COLL NEWPORT RI JOINT MILITARY OPERATIONS DEPT [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Technology is advancing at an ever increasing rate in the 21st century. Many of these advances have been incorporated into the military. The latest gadgets are often bought from commercial vendors; the so called, off the shelf solution. Although this often provides a short term benefit, often too little analysis is conducted on to best integrate the technology into the way we fight. This paper uses a case study of …
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[/table]

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[tr][td=2,1]Nondestructive Evaluation (NDE) of Sintered Silicon Carbide and its Correlation to Microstructure and Mechanical Properties[/td][td]
Dec-2008
[/td][td]
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[tr][td=5,1]Authors: Douglas M Slusark; M V Demirbas; Andrew Portune; Steven Miller; Richard A Haber; Raymond Brennan; William Green; Ernest Chin; James Campbell; RUTGERS - THE STATE UNIV PISCATAWAY NJ
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
High density is a critical acceptance criterion for armor ceramics. Quantifying the difference in density between what would be considered to be a good or bad region is complicated. As density is reduced from theoretical, does this infer the presence of defects? The minimum acceptable density that ensures favorable ballistic performance is unknown. This question concerns not only the presence of defective regions, which may include pores or inclusions, but …
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[/table]

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[tr][td=2,1]Simulation and Design of Nanocomposite for Application in Ballistic Protection[/td][td]
Dec-2008
[/td][td]
10 pages
[/td][/tr]
[tr][td=5,1]Authors: Zheng-Dong Ma; Dongying Jiang; Yuanyuan Liu; Basavaraju Raju; Yushun Cui; ARMY TANK-AUTOMOTIVE AND ARMAMENTS COMMAND WARREN MI [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The objective of this research is to develop a modeling, simulation, and design tool for nanocomposites in order to predict, with accepted fidelity, nano-composite behaviors; and to design optimum nanocomposites for specific Army applications such as ballistic protection. Based on a unit cell model created for nanoclay-epoxy composites, the effect of nanoparticle distribution on the maximum stress developed in epoxy resin was investigated using the Meshfree Particle Method based simulation …
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[/table]

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[tr][td=2,1]Heat Acclimatisation and Active Body Cooling Strategies to Mitigate Heat Stress for Operations Involving Bullet Proof Vests[/td][td]
Dec-2008
[/td][td]
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[tr][td=5,1]Authors: L Law; C L Lim; DEFENCE MEDICAL AND ENVIRONMENTAL RESEARCH INST (SINGAPORE)
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Heat acclimatization (HA) and personal body-cooling are effective methods of heat stress mitigation. HA involves conditioning the body to function under hot conditions by exposing the individual to an incremental level of heat stress daily over 10 to 14 days. Although HA improves thermoregulation during heat exposure, effective physical heat exchange between the body and environment must still take place. Operating with body armour may limit the benefits of HA …
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[/table]

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[tr][td=2,1]Microstructure and Properties of WC Spheres[/td][td]
Nov-2008
[/td][td]
32 pages
[/td][/tr]
[tr][td=5,1]Authors: Jeffrey J Swab; Justin Pritchett; Andrew A Wereszczak; Osama M Jadaan; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Tungsten carbide (WC) spheres are used as projectiles to study the ballistic performance of armor materials and systems. In order to properly understand and model the interaction between the projectile and the armor, it is necessary to have properties of both. In this study, the physical and mechanical properties of two commercially available WC spheres (nominally 0.25 inch in diameter) used in some ballistic impact studies were determined. One WC …
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[/table]

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[tr][td=2,1]Ballistic Testing of SSAB Ultra-High-Hardness Steel for Armor Applications[/td][td]
Oct-2008
[/td][td]
52 pages
[/td][/tr]
[tr][td=5,1]Authors: Dwight D Showalter; Matthew S Burkins; William A Gooch; R S Koch; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The highest-performing U.S. steel alloys for armor-piercing (AP) bullet protection are manufactured to MIL-DTL-46100E, high-hardness armor (HHA) with a hardness range of 477 534 Brinell hardness number (BHN), and to MIL-A-46099C, dual hardness armor (DHA), which is produced by roll bonding a 601 712 BHN front plate to a 461 534 BHN back plate. While these materials still serve their intended applications, monolithic ultra-high-hardness (UHH) steels with a hardness of …
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[/table]

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[tr][td=2,1]Transparent Nanoporous Glass-Polymer Composite for U.S. Army Applications[/td][td]
Oct-2008
[/td][td]
22 pages
[/td][/tr]
[tr][td=5,1]Authors: Daniel J O’Brien; Thomas F Juliano; Parimal J Patel; Steven H McKnight; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report explores the manufacturing of a novel transparent polymer-glass composite. The material is created by infiltrating nanoporous glass (Vycor, Corning Inc.) with different polymers. The Vycor pores (4-6 nm) are much smaller than the wavelength of light thus, refractive index matching with the polymer is not necessary for transparency. Close to 90% of the pore volume can be filled by soaking the porous glass in methyl methacrylate and polymerizing …
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[/table]

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[tr][td=2,1]Toward Modeling Limited Plasticity in Ceramic Materials[/td][td]
01-Sep-2008
[/td][td]
22 pages
[/td][/tr]
[tr][td=5,1]Authors: ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The characteristic features of many armor-related ceramic materials are the anisotropy on the micro-scale level and the very limited, though non-vanishing, plasticity due to limited number of the planes for plastic slip. This work in progress is targeted toward revising phenomenological models of such materials with limited number of slip planes. In order to emphasize the key ideas of our approach, we illustrate the approach using the simplest possible model, …
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[/table]

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[tr][td=2,1]50th Anniversary Celebration: 46th Sagamore Army Materials Research Conference on Advances and Needs in Multi-Spectral Transparent Materials Technology[/td][td]
01-Sep-2008
[/td][td]
170 pages
[/td][/tr]
[tr][td=5,1]Authors: James M Sands; James W McCauley; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Since 1954, the Sagamore Army Materials Research Conference has brought together scientists and engineers from government, industry, and academia for in-depth discussions on cutting edge materials technology issues of critical importance to the U.S. Army community. The 46th Sagamore Army Materials Research Conference continued this tradition with a focus on Advances and Needs in Multi-Spectral Transparent Materials Technology. Held at the Harbourtowne Golf Resort and Conference Center, St. Michaels, MD, …
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[/table]

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[tr][td=2,1]Prototype Development of Low-Cost, Augmented Reality Trainer for Crew Service Weapons[/td][td]
01-Sep-2008
[/td][td]
83 pages
[/td][/tr]
[tr][td=5,1]Authors: Nathan Conger; NAVAL POSTGRADUATE SCHOOL MONTEREY CA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
A significant emerging threat to coalition forces in littoral regions is from small craft such as jet skis, fast patrol boats, and speedboats. These craft, when armed, are categorized as Fast Inshore Attack Craft (FIAC), and their arsenal can contain an array of weapons to include suicide bombs, crew-served weapons, anti-tank or ship missiles, and torpedoes. While these craft often have crude weapon technologies, they use an asymmetric tactic of …
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[/table]

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[tr][td=2,1]Advanced Collaborative System Optimization Modeler (ACSOM) (A.K.A. Armored Combat System Optimization Modeler) and Search, Explore and Learn (SEaL) Extension[/td][td]
Jun-2008
[/td][td]
20 pages
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[tr][td=5,1]Authors: Greg Hartman; Steve Rapp; Doug Rogers; GENERAL DYNAMICS CORP STERLING HEIGHTS MI LAND SYSTEMS DIV [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
OVERVIEW: ACSOM Whole-system Trade Capabilities * ACSOM’s Application Example - Large Program Trade Study * Extensions to Force on Force * Enhanced Capability (SEaL) - Large Bid Program Example.
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[/table]

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[tr][td=2,1]High-Speed Photographic Study of Wave Propagation and Impact Damage in Transparent Laminates[/td][td]
01-Apr-2008
[/td][td]
64 pages
[/td][/tr]
[tr][td=5,1]Authors: Elmar Straburger; M O Steinhauser; FRAUNHOFER-GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E V MUNICH (GERMANY F R) [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Conventional transparent armor consists of glass laminates with polymer interlayer and backing. It has been demonstrated that the materials, the ratio of materials, and the type and thickness of the interlayers affect the ballistic efficiency of the laminate. Borosilicate glass, Starphire ultra-clear soda-lime glass, and the transparent, polycrystalline ceramic AION are materials being considered for transparent armor applications. A comprehensive series of Edge-on Impact tests has been conducted in order …
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[/table]

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[tr][td=2,1]A New Computational Methodology for Structural Dynamics Problems[/td][td]
APR 2008
[/td][td]
62 pages
[/td][/tr]
[tr][td=5,1]Authors: J. N. Reddy; TEXAS A AND M UNIV COLLEGE STATION DEPT OF MECHANICAL ENGINEERING [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Most structural components encountered in army vehicles and armor can be classified as beams, plates, or shells for analysis purposes. While these structural elements are designed to function properly under thermo-mechanical loads encountered in their use, they do develop high stresses and experience high vibration frequencies that may make them non-functional in actual service conditions. The objective of this research is to develop consistent plate and shell theories and associated …
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[/table]

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[tr][td=2,1]Remote Excavation of Heavily Contaminated UXO Sites. The Range Master[/td][td]
05 SEP 2007
[/td][td]
94 pages
[/td][/tr]
[tr][td=5,1]Authors: Alan L. Crandall; USA ENVIRONMENTAL INC OLDSMAR FL [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
USA Environmental, Inc., and Timberline Environmental Services, Inc., developed the Range Master, a remote controlled scraper with an integrated power screen, to excavate and sift the top 12 inches of heavily contaminated UXO sites. The Phase 1 effort demonstrated the manually operated Range Master at a controlled test site. The Phase 2 effort added system armor and the remote control systems. The Phase 2 Range Master was demonstrated at a …
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[/table]

[/td][/tr]
[tr][td=2,1]Transparent Composite Utilizing Nonlinear Optical Polymers[/td][td]
SEP 2007
[/td][td]
30 pages
[/td][/tr]
[tr][td=5,1]Authors: Daniel J. O’Brien; Joshua A. Orlicki; J. D. Demaree; James K. Hirvonen; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Polymer composites are attractive candidates for lightweight armor applications and can be made transparent by matching constituent refractive indices (RIs). Unfortunately, RI matching is difficult since the indices must be matched to approximately the third decimal place, and the matrix RI is very sensitive to factors such as temperature and stress state. Therefore, index matched systems are transparent only over a narrow temperature range. In order to capitalize on the …
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[/table]

[/td][/tr]
[tr][td=2,1]Reflective Inserts to Reduce Heat Strain in Body Armor: Tests With and Without Irradiance[/td][td]
AUG 2007
[/td][td]
6 pages
[/td][/tr]
[tr][td=5,1]Authors: Bruce S. Cadarette; William R. Santee; Scott B. Robinson; Michael N. Sawka; ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA THERMAL AND MOUNTAIN MEDICINE DIVISION [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Delivered by U.S . Army Soldier IP : 153.103.190.11 Tue, 04 Dec 2007 irradiance. Aviat Space Environ Med 2007; 78:809 13. Background: This study evaluated adding reflective thermal inserts (RTI) to reduce the physiological strain during exercise-heat stress with a radiant load. RTI were used with a U.S. Army desert battle dress uniform, body armor, and helmet. Methods: Four male volunteers attempted four trials (10 min rest followed by 100 …
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[/td][/tr]
[tr][td=2,1]Analysis of Shock and High-Rate Data for Ceramics: Strength and Failure of Brittle Solids[/td][td]
JUL 2007
[/td][td]
48 pages
[/td][/tr]
[tr][td=5,1]Authors: Dennis E. Grady; APPLIED RESEARCH ASSOCIATES INC ALBUQUERQUE NM [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Ceramics based on composition of the light intermetallic compounds, have demonstrated considerable success as a barrier material in armor applications. The exceptional strength-to-density ratio of ceramic plays a crucial role in the positive performance of ceramics in the terminal ballistic environment. Even the higher density ceramics, such as tungsten based materials, show promising behavior in space-limited armor applications. The implementation, optimization and evaluation of ceramic in armor systems benefit from …
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[/td][/tr]
[tr][td=2,1]Ballistic Testing of Australian Bisalloy Steel for Armor Applications[/td][td]
JUN 2007
[/td][td]
18 pages
[/td][/tr]
[tr][td=5,1]Authors: Dwight D. Showalter; William A. Gooch; Matt S. Burkins; Victoria Thorn; Stephen J. Cimpoeru; Russell Barnett; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The U.S. Army Research Laboratory (ARL) and Australian Defense Science and Technology Organization (DSTO) have ballistically baselined a range of armor steels (277-321HB to 477-534HB) manufactured by the Australian company, Bisalloy Steels. Plate was tested in thicknesses from 10 mm to 20 mm and ARL and DSTO ballistically tested the plates against 0.30 caliber and 0.50 caliber armor piercing projectiles, 0.50 caliber and 20 mm Fragment Simulating Projectiles (FSPs) and …
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[/td][/tr]
[tr][td=2,1]Shoaling of Aguadilla Harbor, Puerto Rico[/td][td]
JUN 2007
[/td][td]
196 pages
[/td][/tr]
[tr][td=5,1]Authors: Steven A. Huges; Lyndell Z. Hales; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICS LAB [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
During construction of the Aguadilla Harbor, Puerto Rico, breakwater (June 1993 through July 1995), shoaling of the harbor was observed, and excessive wave heights in the harbor caused by refraction/diffraction were much larger than expected. Following construction, additional shoaling occurred even with only limited wave activity, and significantly excessive harbor shoaling occurred. The source of the harbor-shoaling sand was not known with certainty. The quantity of sediment deposited in the …
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[/td][/tr]
[tr][td=2,1]Field Survey on the Incidence and Severity of Motion Sickness in the Canadian Forces Enclosed light Armoured Vehicle[/td][td]
APR 2007
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Bob Cheung; Anne Nakashima; Kevin Hofer; Brian Coyle; DEFENCE RESEARCH AND DEVELOPMENT TORONTO (CANADA)
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
In the Advanced Vehicle Architecture for a Net-Enabled Combat Environment Technology Demonstrator Project (ADVANCE TDP), there is a need to define the requirements of the active suspension system and how the resulting motion affects performance and well-being (i.e. incidence and severity of motion sickness). At the request of the Director Armoured Vehicles Program Management (DAVPM), a study to investigate the effects of motion disturbance in the LAV III (light armoured …
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[/td][/tr]
[tr][td=2,1]Posture Statement of General Peter Pace, USMC Chairman of the Joint Chiefs of Staff before the 110th Congress, Senate Armed Services Committee[/td][td]
06 FEB 2007
[/td][td]
14 pages
[/td][/tr]
[tr][td=5,1]Authors: Peter Pace; SENATE (UNITED STATES) WASHINGTON DC COMMITTEE ON ARMED SERVICES [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This document contains the testimony of General Peter Pace, U.S. Marine Corps, Chairman of the Joint Chiefs of Staff, before the 110th Congress, Senate Armed Services Committee, on 6 Feb 2007. The testimony begins with a brief review of the biennial National Military Strategy Risk Assessment, which depicts the threats the U.S. military faces around the world and how they will overcome them. These threats emanate from Iran, North Korea, …
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[/table]

[/td][/tr]
[tr][td=2,1]Inroads in the Non-Invasive Diagnostics of Ballistic Impact Damage[/td][td]
NOV 2006
[/td][td]
8 pages
[/td][/tr]
[tr][td=5,1]Authors: W. H. Green; N. L. Rupert; Joe M. Wells; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The non-invasive/non-destructive x-ray computed tomography (XCT) technique is a widely applicable and powerful inspection modality for evaluation and analysis of shock and/or impact damage in armor materials, including metallic armors and armor ceramics, as well as materials in general. It presently appears that the noninvasive damage diagnostic approach with XCT provides the only sufficiently effective nondestructive modality for high resolution ballistic impact damage interrogation, spatial characterization, quantification, visualization, and 3-D …
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[/table]

[/td][/tr]
[tr][td=2,1]Investigation of Adaptive Control Approaches to Mitigate Shock Impact With Piezoceramics (Armor)[/td][td]
NOV 2006
[/td][td]
61 pages
[/td][/tr]
[tr][td=5,1]Authors: Marthinus Van Schoor; Jacob Pretorius; MIDE TECHNOLOGY CORP MEDFORD MA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The U.S. Army Research Laboratory sought a Short-Term Analysis Services (STAS) program funded through Army Research Office (ARO) with Mide in the research, design, and development of an adaptive control system to mitigate the shock wave impact on an isolation system during and after a ballistic event. This report documents the initial work performed by Mide.
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[/table]

[/td][/tr]
[tr][td=2,1]The Influence of Armor Material Parameters on the Penetration by Long-Rod Projectiles[/td][td]
SEP 2006
[/td][td]
12 pages
[/td][/tr]
[tr][td=5,1]Authors: William P. Walter; Cyril L. Williams; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The Alekseevski-Tate equations have long been used to predict the penetration, penetration velocity, rod velocity, and rod erosion of long-rod projectiles or kinetic energy penetrators (1). These nonlinear equations were originally solved numerically, then by the exact analytical solution of Walters and Segletes (2, 3). However, due to the nonlinear nature of the equations, the penetration was obtained implicitly as a function of time, so that an explicit functional dependence …
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[/table]

[/td][/tr]
[tr][td=2,1]A CBO Study. The Army’s Future Combat Systems Program and Alternatives[/td][td]
AUG 2006
[/td][td]
107 pages
[/td][/tr]
[tr][td=5,1]Authors: CONGRESSIONAL BUDGET OFFICE (U S CONGRESS) WASHINGTON DC [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The Army is attempting to transform itself from a force designed primarily to fight large and protracted wars in a limited number of locations to one capable of reacting rapidly to crises anywhere in the world. In its endeavor to make its combat units more versatile and agile, the Army is planning to replace its heavy, aging armored combat vehicles with newer, lighter systems that it expects will be as …
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[/td][/tr]
[tr][td=2,1]Lightweight and Advanced Materials for Defense: Materials for Military Ground Vehicles[/td][td]
27 JUN 2006
[/td][td]
19 pages
[/td][/tr]
[tr][td=5,1]Authors: Donald T. Ostberg; TACOM RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
MATERIALS FOR TACTICAL TRUCKS: (1) Material must be readily available and fully developed. (RHA; High hard steel; Aluminum). (2) Research projects are ongoing to further develop advanced lightweight armors. (Composites; Ceramics; Titanium) (3) Long Term Armor Strategy (A+B design; Requirements are classified)
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[/td][/tr]
[tr][td=2,1]Characterization and Model Assessment for Impact Damage Evolution in Functionally Graded Composites Using a Novel Nanosecond Deformation Measurement System[/td][td]
30 APR 2006
[/td][td]
48 pages
[/td][/tr]
[tr][td=5,1]Authors: Stephen R. McNeill; Michael A. Sutton; Hugh A. Bruck; SOUTH CAROLINA UNIV COLUMBIA OFFICE OF SPONSORED PROGRAMS [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The principal goal of this research is to experimentally measure the three-dimensional transient deformation processes that occur in armor systems undergoing a range of dynamic loading conditions. The development of a 3-D image correlation system using digital cameras capable of acquiring images every 5 nano-seconds were used. Due to the nature of the cameras. extensive algorithms for the removable of image distortions were required. The image correlation technology was transferred …
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[/td][/tr]
[tr][td=2,1]DoD Force Protection Presentation[/td][td]
13 APR 2006
[/td][td]
13 pages
[/td][/tr]
[tr][td=5,1]Authors: Marilyn D. Freeman; TACOM RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The Army’s scientific and technical vision is to pursue transformational capabilities for a joint and expeditionary army. The Army seeks to accelerate technology directly into Current Modular Force. Key focus areas are soldier protection technologies.
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[/table]

[/td][/tr]
[tr][td=2,1]Energy Absorber for Vehicle Occupant Safety and Survivability[/td][td]
27 MAR 2006
[/td][td]
18 pages
[/td][/tr]
[tr][td=5,1]Authors: David M. Fox; TACOM RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Motivation for vehicle upper interior impact absorbers defined as follows: Interior surfaces of combat vehicles are generally relatively stiff due to armor protection; Tactical vehicle panels are becoming progressively more stiff as armor protection level increases; Hard surfaces in vehicle interior can pose a head injury hazard to occupants during impact events such as collisions and secondary impacts due to blast events; Turret rings and other interior assemblies offer additional …
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[/td][/tr]
[tr][td=2,1]The Development of a Multifunctional Antenna Precursor for Ground Vehicle Structures[/td][td]
DEC 2005
[/td][td]
28 pages
[/td][/tr]
[tr][td=5,1]Authors: Shawn M. Walsh; Gregory Teitelbaum; John Cook; Alvin Lim; Kirk Tackitt; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
U.S. Army transformation will require lighter, more rapidly deployable ground vehicle systems. Equally important will be the need for superior communication and sensor capability to detect and respond to friendly and hostile entities. The challenge is to consolidate the required armor, infrastructure, electronic hardware, and other systems into a lightweight vehicle structure. This particular research provides a very preliminary but nevertheless representative effort to explore conformal and multifunctional material systems …
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[/table][/td][/tr]
[/table]
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[tr][td]
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[tr][td=15%]Total Results: 361
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Pages: Previous [1] 2 3 4 5 6 7 8 Next
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[tr][td][table]
[tr][td]Sort by:[/td][td=80]Title[/td][td=80]Date [/td][td=80]Pages[/td][td=60]Display:[/td][td=150]
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[tr][td][table=98%]
[tr][td=2,1]Strength-to-Weight Optimization of Titanium Pyramidal Core Sandwich Plates
[/td][td]
JUN 2007
[/td][td]
23 pages
[/td][/tr]
[tr][td=5,1]Authors: Jason R. Tice; Kevin J. Doherty; Marc Zupan; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Future military vehicles demand increasingly mass-efficient structural armor systems to satisfy design requirements of increased mobility and survivability. In order to fully realize lightweight solutions, sandwich plates consisting of monolithic facesheets and a low-density cellular core are targeted as an integral ingredient in these armor systems, providing both structural strength and stiffness via through-the-thickness load-bearing potential. In this study, sandwich plates consisting of thin facesheets and a periodic pyramidal core …
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[tr][td=2,1]Corrosion of Cellular Metals in Marine Environments[/td][td]
30 SEP 2006
[/td][td]
35 pages
[/td][/tr]
[tr][td=5,1]Authors: John R. Scully; VIRGINIA UNIV CHARLOTTESVILLE DEPT OF MATERIALS SCIENCE AND ENGINEERING [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The specific objective of this research is to establish the foundation to enable the next generation of corrosion resistance cellular metals for high performance naval applications. The basis for this work is an interdisciplinary approach that aims to understand: (a) the electrochemical, chemical, and metallurgical conditions that corrode cellular metals in marine environments when fabricated by brazing processes, (b) the impact of braze fabrication time, temperature and diffusion length on …
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[tr][td=2,1]Joining of Gamma Titanium Aluminides[/td][td]
SEP 2002
[/td][td]
114 pages
[/td][/tr]
[tr][td=5,1]Authors: William A. Baeslack III; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH MATERIALS AND MANUFACTURING DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report summarizes, interprets and comparatively discusses the results of research and development performed on the joining of gamma titanium aluminides during the past two decades. Although organized and presented by joining process, many of the observations made and relationships developed, particularly those regarding the weldability and welding metallurgy of gamma titanium aluminides, are broadly applicable. Generally, the basic welding processes and techniques utilized in the fusion and solid -state …
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[/td][/tr]
[tr][td=2,1]Research and Development (R&D) Status Report Advanced Materials Partnerships[/td][td]
DEC 2001
[/td][td]
9 pages
[/td][/tr]
[tr][td=5,1]Authors: Steven V. Axelband; ITT INDUSTRIES INC CLIFTON NJ AVIONICSDIV [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Machined and brazed AlBeMet versions of the SIRFC LRU-1 (Receiver- Processor), LRU-2 (Transmitter), LRU-3 (Modulator) and LRU-4 (Antenna group) structures and electronic modules have been fabricated, assembled and extensively tested. Environmental screening and qualification testing and extensive engineering tests have proven the suitability of AlBeMet as a lightweight structural material for electronic systems. Attached is an Engineering Environmental Test Report for vibration tests performed on a brazed SIRFC LRU-1 chassis. …
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[tr][td=2,1]Thermal Management Research Studies. Volume 1: High Performance Miniature Heat Pipes[/td][td]
MAR 2001
[/td][td]
86 pages
[/td][/tr]
[tr][td=5,1]Authors: Rengasamy Ponnappan; Lanchao Lin; UNIVERSAL ENERGY SYSTEMS INC DAYTON OHHUMAN FACTORS DIV [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
High performance miniature heat pipes are developed for the cooling of high heat flux electronics using new capillary structures which rely on the use of a folded copper sheet fin and a folded copper screen. Using the folded sheet fin, capillary fins with fully opened grooves and folded sheet fins with notches at the fin top are made through a brazing process and the electric- discharge-machining technique. The use of …
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[/td][/tr]
[tr][td=2,1]International Conference on Welded Structures Held in Kiev, Ukraine on October 2000. Abstracts of Poster Papers[/td][td]
OCT 2000
[/td][td]
167 pages
[/td][/tr]
[tr][td=5,1]Authors: OFFICE OF NAVAL RESEARCH EUROPEAN OFFICE FPO AE 09499-0700 [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This volume contains abstracts in Russian with their English translations for papers presented at the International Conference on ‘Welded Structures’ held in Kiev, Ukraine in October 2000. Conference session topics include: strength of welded joints; quality control, technical diagnostics and evaluation of residual life of welded structures; technologies, equipment and materials for welding, surfacing, brazing, cutting and coating; and, certification of products of welding industry and attestation of specialists. …
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[tr][td=2,1]Investigation of Charged Particle Dynamics in Electromagnetic Fields[/td][td]
30 AUG 96
[/td][td]
22 pages
[/td][/tr]
[tr][td=5,1]Authors: C. K. Axton; O. Ishihara; J. Maston; V. Tyson; K. W. Zieher; TEXAS TECH UNIV LUBBOCK DEPT OF ELECTRICAL ENGINEERING [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Photon interaction with plasma turbulence induced by relativistic beam-plasma instability was stud by the 2 and 1/2 D particle simulation code MAGIC. The relativistic beam induced the instability through coupling between the beam plasma mode and an electromagnetic mode resulting in electromagnetic turbulence. The observed growth rate of the instability, as a function of beam velocity and wave vector, agreed well with the linear theory. Harmonic generation is observed in …
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[tr][td=2,1]Ultrasonic Inspection of Titan IV Stage I Baffles[/td][td]
01 MAR 96
[/td][td]
14 pages
[/td][/tr]
[tr][td=5,1]Authors: J. P. Nokes; AEROSPACE CORP EL SEGUNDO CA MECHANICS AND MATERIALS TECHNOLOGY CENTER [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The first-stage Titan Iv engine employs a set of seven CRES 347 stainless-steel baffles mounted to the injector for protection against combustion instabilities. Recent baffle design changes resulted in the failure of several baffles during engine acceptance testing. These failures generated concerns about the structural integrity of the new baffle design, which was employed in the construction of a number of engines, including those of the Titan Iv K-23 vehicle, …
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[/table]

[/td][/tr]
[tr][td=2,1]Ductile - Ductile Beryllium Aluminum Metal Matrix Composite Manufactured by Extrusion[/td][td]
01 DEC 94
[/td][td]
6 pages
[/td][/tr]
[tr][td=5,1]Authors: Nancy F. Levoy; NUCLEAR METALS INC CONCORD MA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Beryllium-aluminum alloys are unique, in-situ ductile-ductile metal matrix composite alloys. Cast and extruded beryllium-aluminum composite alloys are expected to have a unique combination of properties that are attractive for applications such as ground and space based interceptor and tracking systems that require minimum weight, high stiffness, good damping capacity and thermal stability. Compared with other metal matrix composites, cast and extruded beryllium-aluminum composites are expected to have the advantages of: …
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[/table]

[/td][/tr]
[tr][td=2,1]Ductile - Ductile Beryllium Aluminum Metal Matrix Composite Manufactured by Extrusion[/td][td]
01 NOV 94
[/td][td]
5 pages
[/td][/tr]
[tr][td=5,1]Authors: Nancy F. Levoy; NUCLEAR METALS INC CONCORD MA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Beryllium-aluminum alloys are unique, in-situ ductile-ductile metal matrix composite alloys. Cast and extruded beryllium-aluminum composite alloys are expected to have a unique combination of properties that are attractive for applications such as ground and space based interceptor and tracking systems that require minimum weight, high stiffness, good damping capacity and thermal stability. Compared with other metal matrix composites, cast and extruded beryllium-aluminum composites are expected to have the advantages of: …
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[tr][td=2,1]Out-of-Furnace Brazing Technology for Assembly of Large Carbon-Carbon Space Structures[/td][td]
APR 1994
[/td][td]
52 pages
[/td][/tr]
[tr][td=5,1]Authors: G. Freitas; S. Khatri; FOSTER-MILLER INC WALTHAM MA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
In this Phase I SBIR program, Foster-Miller demonstrated the feasibility of an innovative joining technique for two-dimensional carbon/carbon (C/C) composite materials using active braze alloys. Traditionally, brazing of C/C composites required use of high- temperature vacuum furnaces. Vacuum brazing required expensive capital equipment with a limited working area and brazing cycles on the order of several hours to more than a day. The Foster-Miller technique utilized a controlled atmosphere induction …
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[/td][/tr]
[tr][td=2,1]Thoriated-Tungsten, Split-Ring, Hollow-Cathode Electrode for Discharge Devices.[/td][td]
14 MAR 1994
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Edward J. Seibert; Gerald D. Ferguson; Marie E. Taylor; DEPARTMENT OF THE NAVY WASHINGTON DC
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
An electrode assembly for a gas or metal vapor discharge device is disclosed. A pair of electrode assemblies each comprising thoriated tungsten with an alloy composition of tungsten (W) and from about 2% to about 3% of thorium dioxide ThO2 are located at opposite ends of the discharge chamber of the discharge device. The tip of the electrode preferably has four slots equally spaced around its circumference and a groove …
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[/table]

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[tr][td=2,1]Zirconia-TZM Brazed Joints.[/td][td]
1994
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: D. C. Dixon; BRITISH AEROSPACE PLC BRISTOL (UNITED KINGDOM)
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
Brazing is a common method of joining metals to ceramics, and many combinations of materials and braze alloys have been reported in recent years. However, little work has been reported on brazed joints between zirconia and TZM, a high temperature molybdenum alloy. This letter describes the results of a series of brazing tests carried out in argon to examine potential brazing methods for magnesia-stabilized zirconia (MSZ) and TZM (Mo-0.5 Ti-0.1 …
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[tr][td=2,1]Space Storable Rocket Technology Program (SSRT)[/td][td]
05 AUG 93
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Melvin L. Chazen; Thomas Mueller; Thomas Rust; TRW SPACE AND TECHNOLOGY GROUP REDONDO BEACH CA APPLIED TECHNOLOGY DIV
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The SSRT Option 1 Program has continued to establish a technology base for a new class high performance/long life L02-N2H4 space storable engines. The Option 1 Program evaluated two new injector elements, two different methods of injector thermal protection, high temperature rhenium properties and methods of joining rhenium thrust chamber to columbium injector and nozzle. Additional critical experiments were conducted to evaluate the effects of G02 injection into the chamber, …
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[tr][td=2,1]Materials and Manufacturing Processes. Special Issue on Ceramic-Metal Joining. Volume 8, Number 2[/td][td]
93
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: T. S. Sudarshan; T. S. Srivatsan; MATERIALS MODIFICATION INC FAIRFAX VA
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
In this paper the technology for joining metals to ceramics is reviewed. The technologies of metal powder sintering, liquid phase joining with activated brazing alloys and with ceramic frit, solid-state joining, friction welding and mechanical fixation are described. In order to put some perspective on the mechanical data given in the literature, some evaluating remarks on mechanical testing are made.
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[tr][td=2,1]Effects of the Relative Contents of Silver and Copper on the Interfacial Reactions and Bond Strength in the Active Brazing of SiC.[/td][td]
1993
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Hyoung-Keun Lee; Sun-Hyo Hwang; Jai-Young Lee; KOREA AUTOMOTIVE TECHNOLOGY INST SEOUL
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
The roles of titanium in active brazing of SiC have been studied extensively, while studies on the roles of silver and copper, which constitute the major parts of the active brazing alloys, have been overlooked. The effects of the relative contents of silver and copper in the brazing alloy on the interfacial reactions and bond strength have been investigated in this study. The interfacial reactions can be divided into the …
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[tr][td=2,1]Ceramic to Metal Direct Brazing.[/td][td]
1993
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: F. Moret; N. Eustathopoulos; RESERVED SOURCE
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
The production of important components like first walls of thermonuclear power reactors, advanced automotive or aeronautic turbines and heat exchangers depends on the control of ceramic to metal joining techniques, especially direct brazing. Recent advances in two fundamental aspects of such techniques are reviewed: thermodynamics and mechanics. About thermodynamics, a general theory of wetting and adhesion of active filter alloys on oxide ceramics is described. This approach allows the determination …
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[/td][/tr]
[tr][td=2,1]Ceramic/Metal Joining for Structures and Materials.[/td][td]
1993
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: A. P. Tomsia; CALIFORNIA UNIV BERKELEY LAWRENCE BERKELEY LAB
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
The paper presents a discussion of the various types of ceramic joining within a conceptual framework based on the fundamentals of wetting, adhesion, and the thermodynamics of interfacial reactions. Examples are given of solid state diffusion bonding of Pt to alumina and brazing of AlN. Most ceramic-metal bonding is conducted at high temperatures, where chemical reaction is to be expected. The way in which bond strength is affected by chemical …
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[tr][td=2,1]Failure Engineered Heavy Metal Penetrators[/td][td]
DEC 92
[/td][td]
44 pages
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[tr][td=5,1]Authors: Robert Cavalleri; W. Tiarn; D. Nicholson; APPLIED TECHNOLOGY ASSOCIATES ORLANDO FL [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The use of a layered tungsten penetrator as a replacement for depleted uranium in kinetic energy penetrators was investigated. The penetrator was fabricated using strips of tungsten which were vacuum brazed to form a single part. Two filler metals were investigated, copper and nickel along with built in mechanical shear lines. The objective of the shear line was to act as a fault line along which the penetrator would fracture. …
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[tr][td=2,1]JPRS Report Science and Technology Central Eurasia: Materials Science[/td][td]
20 AUG 92
[/td][td]
33 pages
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[tr][td=5,1]Authors: JOINT PUBLICATIONS RESEARCH SERVICE ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Partial Contents: (1) Analysis and Testing; (2) Ferrous Metals; (3) Nonferrous Metals and Alloys, Brazes and Solders; (4) Preparation; (5) Treatment; (6) Welding, Brazing and Soldering. This is report of Science & Technology Central Eurasia: Materials Science.
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[tr][td=2,1]Accurate High Temperature Measurements in Microwave Environments,[/td][td]
27 APR 1992
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[tr][td=5,1]Authors: Jason Mershon; LUXTRON CORP BEAVERTON OR ACCUFIBER DIV
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
The paper win explore the use of Optical Fiber Thermometry (OFT) in applications where coupling of microwave energy is the form of heating. These include sintering of ceramic materials, brazing, analytical work and other applications ranging from 200 deg C to 4000 deg C. OFT includes both contact and non-contact temperature measurement based on Aluminum Oxide (Sapphire) optical sensors. Proper methods of application, heat transfer solutions and expected results will …
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[tr][td=2,1]JPRS Report, Science & Technology, Central Eurasia: Materials Science[/td][td]
31 MAR 92
[/td][td]
29 pages
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[tr][td=5,1]Authors: JOINT PUBLICATIONS RESEARCH SERVICE ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
[/td][/tr]
[/table]
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[tr][td=2,1]JPRS Report, Science & Technology, Central Eurasia: Materials Science[/td][td]
26 MAR 92
[/td][td]
55 pages
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[tr][td=5,1]Authors: JOINT PUBLICATIONS RESEARCH SERVICE ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
[/td][/tr]
[/table]
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[tr][td=2,1]JPRS Report, Science & Technology, Central Eurasia: Materials Science[/td][td]
19 MAR 92
[/td][td]
58 pages
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[tr][td=5,1]Authors: JOINT PUBLICATIONS RESEARCH SERVICE ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
[/td][/tr]
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[tr][td=2,1]JPRS Report, Science & Technology, Central Eurasia: Materials Science[/td][td]
16 MAR 92
[/td][td]
52 pages
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[tr][td=5,1]Authors: JOINT PUBLICATIONS RESEARCH SERVICE ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
[/td][/tr]
[/table]
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[tr][td=2,1]JPRS Report, Science & Technology, Central Eurasia: Materials Science[/td][td]
25 FEB 92
[/td][td]
66 pages
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[tr][td=5,1]Authors: JOINT PUBLICATIONS RESEARCH SERVICE ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
[/td][/tr]
[/table]
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[tr][td=2,1]JPRS Report, Science & Technology, USSR: Materials Science[/td][td]
31 OCT 91
[/td][td]
23 pages
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[tr][td=5,1]Authors: JOINT PUBLICATIONS RESEARCH SERVICE ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
[/td][/tr]
[/table]
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[tr][td=2,1]JPRS Report, Science & Technology, USSR: Materials Science[/td][td]
19 JUL 91
[/td][td]
33 pages
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[tr][td=5,1]Authors: JOINT PUBLICATIONS RESEARCH SERVICE ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
[/td][/tr]
[/table]
[/td][/tr]
[tr][td=2,1]JPRS Report, Science & Technology, USSR: Materials Science[/td][td]
12 JUN 91
[/td][td]
52 pages
[/td][/tr]
[tr][td=5,1]Authors: JOINT PUBLICATIONS RESEARCH SERVICE ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
[/td][/tr]
[/table]
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[tr][td=2,1]JPRS Report, Science & Technology, USSR: Materials Science[/td][td]
10 JUN 91
[/td][td]
50 pages
[/td][/tr]
[tr][td=5,1]Authors: JOINT PUBLICATIONS RESEARCH SERVICE ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
[/td][/tr]
[/table]
[/td][/tr]
[tr][td=2,1]JPRS Report, Science & Technology, USSR: Materials Science[/td][td]
30 APR 91
[/td][td]
43 pages
[/td][/tr]
[tr][td=5,1]Authors: JOINT PUBLICATIONS RESEARCH SERVICE ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
[/td][/tr]
[/table]
[/td][/tr]
[tr][td=2,1]JPRS Report, Science & Technology, USSR: Materials Science[/td][td]
10 APR 91
[/td][td]
32 pages
[/td][/tr]
[tr][td=5,1]Authors: JOINT PUBLICATIONS RESEARCH SERVICE ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
[/td][/tr]
[/table]
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[tr][td=2,1]A Cryocooler for High Acceleration Applications[/td][td]
18 MAR 91
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3 pages
[/td][/tr]
[tr][td=5,1]Authors: ALABAMA CRYOGENIC ENGINEERING HUNTSVILLE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
A schedule for completing the test program has been developed. Much of the effort will be devoted to understanding the details that affect the bonding process. There are two main bonding methods we will study. The first uses a glass frit - a mixture of fine glass particles and binder. The frit is applied to the spacers, the binder burned off, the plates and spacers assembled together and then the …
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[/td][/tr]
[tr][td=2,1]JPRS Report, Science & Technology, USSR: Materials Science[/td][td]
20 FEB 91
[/td][td]
32 pages
[/td][/tr]
[tr][td=5,1]Authors: JOINT PUBLICATIONS RESEARCH SERVICE ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
[/td][/tr]
[/table]
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[tr][td=2,1]JPRS Report, Science & Technology, USSR: Materials Science[/td][td]
24 DEC 1990
[/td][td]
37 pages
[/td][/tr]
[tr][td=5,1]Authors: JOINT PUBLICATIONS RESEARCH SERVICE ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
[/td][/tr]
[/table]
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[tr][td=2,1]Science & Technology. USSR: Materials Science[/td][td]
07 MAR 1990
[/td][td]
56 pages
[/td][/tr]
[tr][td=5,1]Authors: JOINT PUBLICATIONS RESEARCH SERVICE ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Foreign Broadcast Information Service (FRIS) and Joint Publications Research Service (JPRS) publications contain political, economic, military, and sociological news, commentary, and other information, as well as scientific and technical data and reports. All information has been obtained from foreign radio and television broadcasts, news agency transmissions, newspapers, books, and periodicals. Items generally are processed from the first or best available source; it should not be …
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[tr][td=2,1]Diamond Heat Sinks for Electronic Circuits[/td][td]
90
[/td][td]
4 pages
[/td][/tr]
[tr][td=5,1]Authors: Chou H. Li; LINTEL TECHNOLOGY INC ROSLYN NY [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
During the interim stage of this Phase I R and D, a useful metallizing procedure for bulk diamond has been developed, with natural diamond chips, granules, and polished wafers from two vendors. Small-scale statistical experiments were designed and executed by systematically varying several material and processing variables including: metallizing and brazing compositions, processing temperature and time, ambient control, and other procedural changes. Under selected combinations of these variables, metallizing of …
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[tr][td=2,1]JPRS Report, Science & Technology, USSR: Materials Science[/td][td]
29 DEC 89
[/td][td]
46 pages
[/td][/tr]
[tr][td=5,1]Authors: JOINT PUBLICATIONS RESEARCH SERVICE ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report contains foreign media information on materials science concerning: nonferrous metals, alloys (titanium alloy), electron beam hardening, welding, brazing, soldering and thermoelectricity.
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[tr][td=2,1]Firing Up the Future with Ceramic Engine Parts.[/td][td]
OCT 1989
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: M. Yoshida; A. Kokaji
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
Ceramic components in automobile engines promise to be lighter, and more fuel efficient. For example, an engine made entirely of ceramic could operate at high temperatures without cooling systems. Conventional, metal engines cannot resist temperatures over 1,000 degrees F without cooling systems, which decrease energy efficiency. But, ceramic materials have weaknesses that currently limit their use in engines. Designers are developing ways to overcome deficiencies such as brittleness and unpredictable …
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[tr][td=2,1]How to Succeed at CIM (Computer Integrated Manufacturing).[/td][td]
OCT 1989
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: J. R. Gyorki
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
Successful CIM projects depend on setting long-term goals and getting total commitment from top management. (Copyright 1989 Penton Publishing).
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[tr][td=2,1]Keeping a Lid on Mold Processing Costs.[/td][td]
OCT 1989
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: C. Poli; S. M. Kuo; J. E. Sunderland
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
Molding costs can be minimized by using a rating method that indicates the relative difficulty of processing candidate designs. (Copyright 1989 Penton Publishing).
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[tr][td=2,1]Rapid Prototyping: How to Stay the Course.[/td][td]
OCT 1989
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: R. Goering
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
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[/table]
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[tr][td=2,1]Development of the RAIDS (Remote Atmospheric and Ionospheric Detector System) Extreme Ultraviolet Wedge and Strip Detector[/td][td]
28 AUG 89
[/td][td]
18 pages
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[tr][td=5,1]Authors: D. C. Kayser; W. T. Chater; A. B. Christensen; C. K. Howey; J. B. Pranke; AEROSPACE CORP EL SEGUNDO CA SPACE SCIENCES LAB [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
In the next few years the Remote Atmospheric and Ionospheric Detector System (RAIDS) package will be flown on a TRIOS spacecraft. The Extreme Ultraviolet Spectrometer (EUVS) experiment contains a position-sensitive detector based on wedge and strip anode technology. A detector design has been implemented in brazed alumina and Kovar to provide a rugged bakeable housing and anode. A stack of three 80:1 microchannel plates is operated at 3500-4100 V to …
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[tr][td=2,1]JPRS Report, Science & Technology, USSR: Materials Science[/td][td]
20 JUN 89
[/td][td]
30 pages
[/td][/tr]
[tr][td=5,1]Authors: JOINT PUBLICATIONS RESEARCH SERVICE ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
[/td][/tr]
[/table]
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[tr][td=2,1]JPRS Report, Science & Technology, USSR: Materials Science[/td][td]
16 MAY 89
[/td][td]
45 pages
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[tr][td=5,1]Authors: JOINT PUBLICATIONS RESEARCH SERVICE ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
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[/table]
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[tr][td=2,1]JPRS Report, Science & Technology, Materials Science[/td][td]
04 APR 89
[/td][td]
65 pages
[/td][/tr]
[tr][td=5,1]Authors: JOINT PUBLICATIONS RESEARCH SERVICE ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
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[/table]
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[tr][td=2,1]Design, Fabrication, and Performance of Brazed, Graphite Electrode, Multistage Depressed Collectors with 500-W, Continuous Wave, 4.8- to 9.6-GHz Traveling-Wave Tubes[/td][td]
MAR 89
[/td][td]
19 pages
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[tr][td=5,1]Authors: Peter Ramins; Ben Ebihara; NATIONAL AERONAUTICS AND SPACE ADMINISTRATION CLEVELAND OH LEWIS RESEARCH CEN TER [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
A small, isotropic graphite electrode, multistage depressed collector (MDC) was designed, fabricated, and evaluated in conjunction with a 500-W, continuous wave (CW), 4.8- to 9.6-GHz traveling wave tube (TWT). The carbon electrode surfaces were used to improve the TWT overall efficiency by minimizing the secondary electron emission losses in the MDC. The design and fabrication of the brazed graphite MDC assembly are described. The brazing technique, which used copper braze …
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[tr][td=2,1]JPRS Report, Science & Technology, USSR: Materials Science[/td][td]
08 JUL 1988
[/td][td]
22 pages
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[tr][td=5,1]Authors: JOINT PUBLICATIONS RESEARCH SERVICE ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
[/td][/tr]
[/table]
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[tr][td=2,1]JPRS Report, Science & Technology, USSR: Materials Science[/td][td]
02 JUN 1988
[/td][td]
35 pages
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[tr][td=5,1]Authors: JOINT PUBLICATIONS RESEARCH SERVICE ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
[/td][/tr]
[/table]
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[tr][td=2,1]JPRS Report, Science & Technology, USSR: Materials Science[/td][td]
27 APR 1988
[/td][td]
26 pages
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[tr][td=5,1]Authors: JOINT PUBLICATIONS RESEARCH SERVICE ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Partial Contents: Analysis, Testing, Fracture Surface, Corrosion, Metal COrrosion, Nitrogen, Sugar Cane, Wax, Corrosion Resistance, Alloy, Titanium, Electrochemical Behavior, Crystalline States, Electrolytic Titanium, Niobium Powder, Iron Powders, Cobalt, Metal Powders,Superplasticity, Computer Simulation, Laser Treatment, Welding, Brazing, Soldering, Hardened Layer, Deformation.
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[tr][td]

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[table=98%]
[tr][td=15%]Total Results: 361
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Pages: Previous [1] 2 3 4 5 6 7 8 Next
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[tr][td=15%]Total Results: 1118
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Pages: Previous [1] 2 3 4 5 6 7 8 9 10 11 Next
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Results per page:
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[tr][td]Sort by:[/td][td=80]Title[/td][td=80]Date [/td][td=80]Pages[/td][td=60]Display:[/td][td=150]
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[tr][td][table=98%]
[tr][td=2,1]Exhaust Gas Scrubber Washwater Effluent
[/td][td]
Nov 2011
[/td][td]
47 pages
[/td][/tr]
[tr][td=5,1]Authors: ENVIRONMENTAL PROTECTION AGENCY WASHINGTON DC [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This document contains information about effluent washwater discharges associated with the operation of exhaust gas cleaning systems (EGCSs), also known as sulfur oxide (SOx) scrubbers, onboard vessels. The use of scrubbers to clean the exhaust from marine engines using high sulfur residual oil and diesel fuels is an option for reducing SOx air emissions required by Annex VI of the MARPOL International Convention for the Prevention of Pollution from Ships. …
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[tr][td=2,1]Firefighting and Emergency Response Study of Advanced Composites Aircraft. Objective 4: Post Fire Decontamination of Personal Protection Equipment[/td][td]
Nov 2011
[/td][td]
34 pages
[/td][/tr]
[tr][td=5,1]Authors: Howard T Mayfield; Brent M Pickett; Timothy J Shelley; AIR FORCE RESEARCH LAB TYNDALL AFB FL MATERIALS AND MANUFACTURING DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Concerns existed regarding the decontamination of personal protective equipment (PPE) exposed to fires involving advanced composite materials (ACM). The concerns focused on soot particles and fugitive fiber emissions produced from burning ACM and expected to deposit on turnout suits and equipment. Contaminants to PPE were studied from live ACM fires and from contact with burned ACM. Photomicrography techniques were developed to provide quantitative measures of the contaminants. MATLAB and the …
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[tr][td=2,1]Using a Volume Bragg Grating Instead of a Faraday Isolator in Lasers Incorporating Stimulated Brillouin Scattering Wavefront Reversal or Beam Cleanup[/td][td]
29 Aug 2011
[/td][td]
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[tr][td=5,1]Authors: John E McElhenny; Jeffrey O White; Steven D Rogers; Tigran Sanamyan; Leonid B Glebov; Oleksiy Mokhun; Vadim I Smirnov; ARMY RESEARCH LAB ADELPHI MD
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
A master-oscillator power-amplifier with stimulated Brillouin scattering (SBS) beam cleanup or wavefront reversal typically incorporates a Faraday isolator to outcouple the Stokes light, limiting the power scalability. Volume Bragg gratings (VBGs) have the potential for scaling to higher powers. We report here the results of tests on a VBG designed to resolve wavelengths 0.060 nm apart, corresponding to the 16 GHz frequency shift for SBS backscattering at 1064 nm in …
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[tr][td=2,1]Nondestructive Evaluation (NDE) Exploratory Development for Air Force Systems. Delivery Order 0001: Quick Reaction NDE and Characterization–Effects of Chemical Effects of Chemical Etching after Pre-Inspection Mechanical Cleaning on Fluorescent Penetrant[/td][td]
Aug 2011
[/td][td]
78 pages
[/td][/tr]
[tr][td=5,1]Authors: Noel A Tracy; UNIVERSAL TECHNOLOGY CORP DAYTON OH [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
A study was conducted to gather data on the ability of etching to recover FPI crack indications degraded by mechanically cleaning cracked specimens made of Ti-6Al-4V and Inconel 718. The data showed that minimal etching does not sufficiently overcome the deleterious effects of certain mechanical cleaning methods to provide for a subsequent reliable fluorescent-penetrant inspection, and the amount of etching required to recover some crack indications would not be allowed …
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[tr][td=2,1]Improved Round Trip Efficiency for Regenerative Fuel Cell Systems[/td][td]
15 JUL 2011
[/td][td]
6 pages
[/td][/tr]
[tr][td=5,1]Authors: Katherine E. Ayers; PROTON ENERGY SYSTEMS INC WALLINGFORD CT [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Phase 1 of the project was completed with successful achievement of the go/no go metrics. Additional follow on work is expected for the membrane evaluation but has not yet been exercised. Phase 2 on the regenerative fuel cell system was initiated. Refurbishment of the regenerative fuel cell test stand was initially funded, followed by upgrades to the system later in the quarter. A detailed plan was developed and initiated for …
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[tr][td=2,1]Developing Functional Parameters for a Science-Based Vehicle Cleaning Program to Reduce Transport of Non-Indigenous Invasive Plant Species[/td][td]
Jun 2011
[/td][td]
64 pages
[/td][/tr]
[tr][td=5,1]Authors: Lisa J Rew; Joseph Fleming; MONTANA STATE UNIV BOZEMAN [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Many land management activities on Federal, State, and private lands involve the movement of vehicles and equipment along gravel roads and in off-road locations where plant propagules can be picked up and transported. When relocated to new areas invasive and nonnative species of plants can become established and compromise the native ecosystem service and function. Plant propagules can be transported directly on the undercarriage components of vehicles. Several contractors have …
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[/table]

[/td][/tr]
[tr][td=2,1]Produce Sanitation System Evaluation[/td][td]
MAY 2011
[/td][td]
32 pages
[/td][/tr]
[tr][td=5,1]Authors: John Gildea; Louis Jamieson; ARMY NATICK SOLDIER RESEARCH DEVELOPMENT AND ENGINEERING CENTER MA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report documents an evaluation, performed by the Department of Defense (DoD) Combat Feeding Directorate (CFD), of an automated produce cleansing and sanitizing sink in an effort to facilitate a more effective and efficient means for cleansing and sanitizing fresh fruits and vegetables (FF&V) aboard Navy vessels, The sink saves labor associated with the washing of produce in food service operations by automatically performing this effort, thus allowing food service …
[/td][/tr]
[/table]

[/td][/tr]
[tr][td=2,1]Contaminant Mass Transfer During Boiling in Fractured Geologic Media[/td][td]
Apr 2011
[/td][td]
120 pages
[/td][/tr]
[tr][td=5,1]Authors: Ronald W Falta; Lawrence C Murdoch; CLEMSON UNIV SC [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The DoD is responsible for cleanup of groundwater that is contaminated with chlorinated volatile organic compounds (CVOC) at thousands of sites. Many of these sites are underlain by fractured rocks or soils with significant matrix porosity. As dissolved CVOC and dense nonaqueous phase liquids (DNAPL) move through fracture networks, the CVOC diffuse into the lower permeability matrix materials, where they can remain for hundreds of years. Remediation options for treating …
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[/table]

[/td][/tr]
[tr][td=2,1]Post-Traumatic Stress Disorder and Pain Comorbidity in Veterans[/td][td]
Dec 2010
[/td][td]
4 pages
[/td][/tr]
[tr][td=5,1]Authors: Erin E Krebs; INDIANA UNIV INDIANAPOLIS [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Our objectives are to analyze existing clinical and administrative data in Veterans Integrated Service Network (VISN) 11 to determine: 1) whether the presence of pain affects diagnosis and treatment of PTSD among VA patients who have a positive PTSD screening test; and 2) the effects of PTSD/pain comorbidity on utilization of mental health, primary care, and pain-related health services. The first task outlined in our Statement of Work is to …
[/td][/tr]
[/table]

[/td][/tr]
[tr][td=2,1]Demonstration/Validation of Tertiary Butyl Acetate (TBAC) for Hand Wipe Cleaning Applications[/td][td]
OCT 2010
[/td][td]
407 pages
[/td][/tr]
[tr][td=5,1]Authors: Wayne Ziegler; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Traditionally, vehicle, equipment, aircraft, and ship maintenance utilize organic solvents containing hazardous air pollutants (HAP), such as MIL-PRF-680, xylene, & methyl ethyl ketone, to remove dirt, grease, soot, paint debris, and burned-on carbon from various parts. Tertiary Butyl Acetate (TBAC), a HAP-free & volatile organic compound (VOC) exempt solvent, can enable the DoD to demonstrate compliance with NESHAP & VOC regulations without performing the extensive record keeping required when using …
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[/table]

[/td][/tr]
[tr][td=2,1]Determinants of Weight Gain in Women with Early-Stage Breast Cancer[/td][td]
Apr-2009
[/td][td]
15 pages
[/td][/tr]
[tr][td=5,1]Authors: Christine Ambrosone; Chi-Chen Hong; Dana H Bovbjerg; John Cowell; Stephen Edge; Susan McCann; Swati Kulkarni; Tracey O’Connor; Jihnhee Yu; HEALTH RESEARCH INC BUFFALO NY [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Weight gain after breast cancer diagnosis is common, and has been associated with poorer prognosis. The goals of the study are to examine weight gain relation to treatment-related changes in sex hormone levels, and in relation to genetic polymorphisms in sex hormone pathways, accounting for potential interactions with energy balance, psychosocial factors, tumor characteristics, cancer treatment, and medication use. A prospective longitudinal study of weight gain is being conducted in …
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[/table]

[/td][/tr]
[tr][td=2,1]Demonstration of a Sample Preparation Method for Biological Detection Based on a Novel Membrane Fractionation Technology[/td][td]
31 DEC 2008
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Andrew Page; Pam Murowchick; ALBURTYLAB INC DREXEL MO
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
L WI funding has been obtained to gather proof-of-concept data for passing DNA from lysed bacteria through a membrane and for concentrating DNA in the concentrator cell. AlburtyLab has data showing high efficiency ( ~99%) for passing Bovine serum albumin through an appropriate membrane and data showing high efficiency (~60%) for concentrating 0.03 )liD microspheres with the system. Data showing similar efficiencies for DNA would significantly improve the quality of …
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[/table]

[/td][/tr]
[tr][td=2,1]Decontamination Workshop for Emergency Responding Personnel “How Clean is Clean Enough” 12-14 September 2007[/td][td]
01-Sep-2008
[/td][td]
82 pages
[/td][/tr]
[tr][td=5,1]Authors: Gary Eifried; Michael DeZearn; EAI CORP ABINGDON MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The Decontamination Workshop, How Clean is Clean Enough? was conducted 12-14 September 2007 at Aberdeen Marriott, Aberdeen MD. The purpose was to determine an acceptable level of decontamination for victims before they can be released from a chemical incident site. Answers to this difficult question will influence ongoing and future decontamination equipment performance standards. The workshop brought together individuals from federal, state, and local agencies so that all pertinent concerns …
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[/table]

[/td][/tr]
[tr][td=2,1]Strategic Technical Baselines for UK Nuclear Clean-up Programmes[/td][td]
Sep-2008
[/td][td]
15 pages
[/td][/tr]
[tr][td=5,1]Authors: Brian Ensor; NUCLEAR DECOMMISSIONING AUTHORITY CUMBRIA (UNITED KINGDOM) [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
OUTLINE: Background to NDA and our responsibilities * Context of issues and challenges * NDA approach to Technical Underpinning (Technical Baselines; Technology Readiness Levels; R&D needs, risks, opportunities) Progress to date and way forward. BACKGROUND: NDA established by Government in April 2005 to: (1) Safely clean up the UK civil public sector nuclear legacy with due regard to the environment and socio-economic issues (2) Ensure that current commercial operations are …
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[/table]

[/td][/tr]
[tr][td=2,1]Stimulated Brillouin Scattering Phase Conjugation in Fiber Optic Waveguides[/td][td]
01-Jul-2008
[/td][td]
199 pages
[/td][/tr]
[tr][td=5,1]Authors: Steven M Massey; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The objective of this research effort was to demonstrate the path to continuous wave, coherent beam combination through stimulated Brillouin scattering phase conjugation in optical fiber. This work experimentally determined the fiber parameters necessary for phase conjugation in step-index optical fiber. Continuous wave phase conjugation using stimulated Brillouin scattering in step-index fibers was achieved for the first time with a fidelity of 0.8 and a threshold power of 16 W …
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[/table]

[/td][/tr]
[tr][td=2,1]Preparation of Ultra Thin Polystyrene, Polypropylene and Polyethylene Films on Si Substrate Using Spin Coating Technology[/td][td]
04 JAN 2008
[/td][td]
29 pages
[/td][/tr]
[tr][td=5,1]Authors: Evgeniya Lock; Scott Walton; Richard Fernsler; NAVAL RESEARCH LAB WASHINGTON DC PLASMA PHYSICS DIV [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Preparation of ultra thin polystyrene, polypropylene and polyethylene films on silicon substrate using the spin coating technique is discussed in this report. The influence of various process parameters on the obtained film quality including Si wafer preparation, choice of solvent, influence of the solution concentration on the coating and sample positioning on the spin coater are shown. The polymer film surface morphology, thickness and chemical composition were analyzed by atomic …
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[/table]

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[tr][td=2,1]Hazardous Waste: Information on How DOD and Federal and State Regulators Oversee the Off-Site Disposal of Waste from DOD Installations[/td][td]
NOV 2007
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Anu K. Mittal; Edward Zadjura; Leigh White; Richard Johnson; Kirk Menard; Alison O’Neill; Peter Singer; Jay Spaan; GOVERNMENT ACCOUNTABILITY OFFICE WASHINGTON DC
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
DOD primarily relies on private contractors to handle the off-site disposal of hazardous waste generated by its installations. While DOD has procedures aimed at ensuring that its contractors select appropriate transporters and treatment, storage, and disposal facilities for the waste generated at installations, it relies on federal and state environmental regulators to ensure that this hazardous waste is disposed of properly. The procedures that DOD follows regarding the disposal of …
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[/table]

[/td][/tr]
[tr][td=2,1]Biofouling and Design of a Biomimetic Hull-Grooming Tool[/td][td]
14-Sep-2007
[/td][td]
38 pages
[/td][/tr]
[tr][td=5,1]Authors: Nikita Kohli; NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Biofouling, the accumulation of biological detritus on a hard substrate, has plagued the United Navy. Fouling causes increased hydrodynamic drag, resulting in increased fuel consumption and decreased speed and range. The purpose of this investigation was to research the formation of fouling, mechanisms of prevention, and tools for its removal. The Navy currently uses a copper-based antifouling coating that releases copper into the water, killing the fouling organisms. There is …
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[/table]

[/td][/tr]
[tr][td=2,1]Processing of Training Range Soils for the Analysis of Energetic Compounds[/td][td]
SEP 2007
[/td][td]
34 pages
[/td][/tr]
[tr][td=5,1]Authors: Alan Hewitt; Susan Bigl; Marianne Walsh; Sylvie Brochu; Kevin Bjella; Dennis Lambert; ENGINEERING RESEARCH AND DEVELOPMENT CENTER HANOVER NH COLD REGIONS RESEARCH AND ENGINEERING LAB [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Large soil samples are often necessary to represent areas where analytes are distributed as particulates. Proper processing of these large samples impose additional time, space, and equipment requirements on the laboratory community servicing environmental programs to investigate military training ranges. Part of this study evaluated the robustness of two methods used to process large soil samples for the determination of energetic munitions residues whole sample mechanical grinding (comminution) and solvent …
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[/table]

[/td][/tr]
[tr][td=2,1]Military Base Closures: Role and Costs of Environmental Cleanup[/td][td]
31 AUG 2007
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: David M. Bearden; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Near the end of its first session, the 109th Congress approved a new round of military base closures and realignments. As the Department of Defense (DoD) implements the new round, issues for the 110th Congress include the pace and costs of closing and realigning the bases and the impacts on surrounding communities. The disposal of surplus property has stimulated interest among affected communities in terms of how the land can …
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[/table]

[/td][/tr]
[tr][td=2,1]Perchlorate Contamination of Drinking Water: Regulatory Issues and Legislative Actions[/td][td]
04 APR 2007
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Mary Tiemann; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Perchlorate is the explosive component of solid rocket fuel, fireworks, road flares, and other products. Used mainly by the Department of Defense (DOD) and related industries, perchlorate occurs naturally and is present in some organic fertilizer. This soluble, persistent compound has been detected in sources of drinking water for more than 11 million people. It also has been found in milk, fruits, and vegetables. Concern over the potential health risks …
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[/table]

[/td][/tr]
[tr][td=2,1]Military Base Closures: Opportunities Exist to Improve Environmental Cleanup Cost Reporting and to Expedite Transfer of Unneeded Property[/td][td]
JAN 2007
[/td][td]
56 pages
[/td][/tr]
[tr][td=5,1]Authors: GOVERNMENT ACCOUNTABILITY OFFICE WASHINGTON DC [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
While expected environmental cleanup costs for unneeded property arising from the 2005 BRAC round are not yet fully known, Department of Defense (DOD) data indicate that about $950 million will be needed to clean up these bases, adding to the estimated $13.2 billion total cleanup cost for the prior rounds. Although DOD’s cleanup program has matured compared to prior BRAC rounds, there are still many unknowns and the cleanup estimate …
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[/table]

[/td][/tr]
[tr][td=2,1]Performance of a Diesel, JP-8 Reformer[/td][td]
27-Nov-2006
[/td][td]
5 pages
[/td][/tr]
[tr][td=5,1]Authors: Subir Roychoudhury; Dennis Walsh; Deryn Chu; Erik Kallio; PRECISION COMBUSTION INC NORTH HAVEN CT [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Under a U. S. Army program, Precision Combustion, Inc. (PCI) has developed and demonstrated an ultra compact and lightweight 2 - 5 kWe diesel reformer and desulfurizer producing 1 ppm sulfur in reformate. The prototype includes a steam generator, fuel/air/water pumps, premixer, atomizer, igniter, sulfur cleanup and a controller to enable stand-alone operation. The reforming reactor was based on a small, modular catalytic reactor, which utilized patented Microlith substrates and …
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[/table]

[/td][/tr]
[tr][td=2,1]Military Base Closures: Role and Costs of Environmental Cleanup[/td][td]
03 OCT 2006
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: David M. Bearden; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Near the end of its first session, the 109th Congress approved a new round of military base closures and realignments. As the Department of Defense (DOD) implements the new round, potential issues include the pace and costs of closing and realigning the bases and the impacts on surrounding communities. The disposal of property on these bases has stimulated interest among affected communities in how the land can be redeveloped to …
[/td][/tr]
[/table]

[/td][/tr]
[tr][td=2,1]Financial Management: Internal Controls Over Compiling and Reporting Environmental Liabilities Data[/td][td]
15 MAR 2006
[/td][td]
40 pages
[/td][/tr]
[tr][td=5,1]Authors: OFFICE OF THE DEPUTY INSPECTOR GENERAL FOR AUDITING OF THE DEPARTMENT OF DEFENSE ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Who Should Read This Report and Why? DoD civilians and unifbn%ed officers responsible for envfrorn%ental cost estimating and financial reporting should read this report. It discusses internal controls over compiling and reporting cost%o-complete estimates for envfrorn%ental liabilities included in the Air Force annual financial statements. Background. This audit is required by Public Law 101-576, Chief Financial Officers Act of 1990, as amended by the Federal Financial Management Act of 1994. …
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[/table]

[/td][/tr]
[tr][td=2,1]Multiple Channel Laser Beam Combination and Phasing Using Stimulated Brillouin Scattering in Optical Fibers[/td][td]
22 DEC 2005
[/td][td]
176 pages
[/td][/tr]
[tr][td=5,1]Authors: Brent W. Grime; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Brightness scaling lasers using stimulated Brillouin scattering (SBS) in optical fibers is explored. A multiple-channel amplifier approach is used to increase the total power of a laser system while avoiding a significant burden on a single channel. The work explores two approaches utilizing both SBS beam cleanup and SBS piston error conjugation. A unique beam combiner that takes advantage of the SBS beam cleanup properties of a long, gradient-index multimode …
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[/table]

[/td][/tr]
[tr][td=2,1]Development of Passivation Technology for Improved GaN/AlGaN HEMT Performance and Reliability[/td][td]
SEP 2005
[/td][td]
80 pages
[/td][/tr]
[tr][td=5,1]Authors: C. R. Abernathy; Angela Hunter-Edwards; FLORIDA UNIV GAINESVILLE DEPT OF MATERIALS SCIENCE AND ENGINEERING [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Under the support of this contract, we have been successful in mitigating the current collapse that is found in nitride based high electron mobility transistors (HEMTs) that is responsible for low power performance from these devices. We have successfully and repeatedly grown oxide material that, along with surface cleaning recipes, reduce the surface states and reduce the device-device surface leakage. As part of the recipe development we have studied fundamental …
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[/table]

[/td][/tr]
[tr][td=2,1]Federal Environmental Remediation Contractual and Insurance-Based Risk Allocation Schemes: Are They Getting the Job Done?[/td][td]
31 AUG 2005
[/td][td]
116 pages
[/td][/tr]
[tr][td=5,1]Authors: Amy L. Momber; AIR FORCE INST OF TECH WRIGHT-PATTERSONAFB OH [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Federal environmental remediation projects are laden with risks - risks that are often undetectable before remediation work begins. Recognizing they cannot specifically account for such unknown contingencies via contract, the Government and remediation contractors employ contractual and insurance-based methods to shift or reduce their respective risks. This thesis examines and critiques the effectiveness of such risk-shifting measures as they pertain to the Government, the remediation contractor, and, most importantly, getting …
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[/table]

[/td][/tr]
[tr][td=2,1]Unexploded Ordnance Cleanup Costs: Implications of Alternative Protocols[/td][td]
17 AUG 2005
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Jacqueline MacDonald; Carmen Mendez; RAND ARROYO CENTER SANTA MONICA CA
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
With continued military downsizing and base closures, cleanup of unexploded ordnance (UXO) at former weapons ranges has become one of the most costly environmental problems the military faces. This study examines cost estimation for UXO remediation conducted at closed military installations, the difficulties of accurately estimating cleanup costs, and the major effects that different cleanup requirements and methods can have on cost.
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[/table]

[/td][/tr]
[tr][td=2,1]Interaction of Candidate Cleaning Solutions for Sensitive Equipment Decontamination With Polymeric Materials[/td][td]
17 AUG 2005
[/td][td]
8 pages
[/td][/tr]
[tr][td=5,1]Authors: Brian S. Ince; Wendel J. Shuely; SOLDIER AND BIOLOGICAL CHEMICAL COMMANDABERDEEN PROVING GROUND MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Chemical-polymer compatibility is an important criterion for the cleaning, decontamination, and extraction of hazardous chemicals from sensitive equipment (electronics, optics, and other advanced polymeric materials). Candidate cleaning fluids for sensitive equipment include fluorocarbons and supercritical fluids. The initial evaluation strategy involves the measurement of the sorption and desorption diffusion coefficients of the candidate cleaning fluid in a spectrum of polymer compositions. The objective was to characterize the complete desorption process …
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[/table]

[/td][/tr]
[tr][td=2,1]Military Base Closures: Role and Costs of Environmental Cleanup[/td][td]
27 JUN 2005
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: David M. Bearden; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The upcoming 2005 round of military base closings has stimulated interest among potentially affected communities in how the bases to be selected for closure might be economically redeveloped to replace lost jobs. Environmental contamination can present a challenge to economic redevelopment, if funding or technological constraints would limit cleanup of the land to a degree that would be safe for its intended use. Most of the lands on bases closed …
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[/table]

[/td][/tr]
[tr][td=2,1]Advanced Testing of Safe-Solvent Replacements for CFC-113 for Use in Cleaning Oxygen Systems[/td][td]
JUN 2005
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors:
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Use and Production of CFC-113 Restricted; - Replacement Cleaning Solvent Needed - Solvency As Good or Better Than CFC-113 Non-Flammable Compatible With Liquid and Gaseous Oxygen Low Toxicity or Non-Toxic Acceptable Environmental Properties Similar Volatility and Other Physical Properties Manufacturable at Reasonable Cost.
[/td][/tr]
[/table]

[/td][/tr]
[tr][td=2,1]Military Base Closures: Role and Costs of Environmental Cleanup[/td][td]
11 APR 2005
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: David M. Bearden; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The upcoming 2005 round of military base closings has stimulate interest among potentially affected communities in how the bases to be selected for closure might be economically redeveloped to replace lost jobs. Environmental contamination can present a challenge to economic redevelopment, if funding or technological constraints would limit cleanup of the land to a degree that would be safe for its intended use. Most of the lands on bases closed …
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[/table]

[/td][/tr]
[tr][td=2,1]Expert Consensus on MIC - Prevention and Monitoring, Part 1[/td][td]
2005
[/td][td]
7 pages
[/td][/tr]
[tr][td=5,1]Authors: P. J. Scott; CARIAD CONSULTANTS TORONTO (ONTARIO) [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Originally produced by NACE Task Group 304 as a report on industrial practice currently recommended by experts in the field of microbiologically influenced corrosion (MIC), this article discusses the best available techniques and strategies for handling MIC problems. It summarizes prevention and monitoring, and provides references where detailed descriptions of useful techniques may be found. Failure analysis and control will be outlined in part two of this article, which will …
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[/table]

[/td][/tr]
[tr][td=2,1]An Evaluation of Carbon Steel Corrosion Under Stagnant Seawater Conditions[/td][td]
OCT 2004
[/td][td]
14 pages
[/td][/tr]
[tr][td=5,1]Authors: Jason S. Lee; RIchard I. Ray; Edward J. Lemieux; Alexander U. Falster; Brenda J. Little; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Corrosion of 1020 carbon steel coupons in natural seawater over a 1- year period was more aggressive under strictly anaerobic stagnant conditions than under aerobic stagnant conditions as measured by weight loss and instantaneous corrosion rate (polarization resistance). Under oxygenated conditions, a two-tiered oxide layer of lepidocrocite/ goethite formed. The inner layer was extremely tenacious and resistant to acid cleaning. Under anaerobic conditions, the corrosion product was initially a non-tenacious …
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[/table]

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[tr][td=2,1]Evaluating an Ultrasound Algorithm for Patients with Blunt Abdominal Trauma[/td][td]
01 SEP 2004
[/td][td]
11 pages
[/td][/tr]
[tr][td=5,1]Authors: Ara J. Feinstein; Mark G. McKenney; Stephen M. Cohn; MIAMI UNIV FL RYDER TRAUMA CENTER [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The ideal assessment of the blunt abdominal trauma (BAT) patient would be sensitive, specific, economical, fast, and without complications. By combining ultrasound (US) with computed tomography (CT) and diagnostic peritoneal lavage (DPL), an effective algorithm can be derived to accurately evaluate BAT. We prospectively evaluated a series of patients with suspected blunt abdominal trauma using an algorithm with ultrasound as the initial screening modality to determine if it would be …
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[/table]

[/td][/tr]
[tr][td=2,1]The Role of Myoepithelial Maspin in Breast Carcinoma Progression, Diagnosis, and Screening[/td][td]
AUG 2004
[/td][td]
206 pages
[/td][/tr]
[tr][td=5,1]Authors: Sanford H. Barsky; CALIFORNIA UNIV LOS ANGELES [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
In glandular organs, precancerous state precedes invasive carcinoma. In the breast this state is recognized as DCIS and consists of an epithelial cell proliferation confined by myoepithelial cells. Our laboratory has established cell line/xenografts of myoepithelial cells. Our myoepithelial cell lines inhibit invasion and motility of breast carcinoma lines in vitro largely through maspin. The overall hypothesis of this proposal was how does myoepithelial maspin regulate breast (DClS) carcinoma progression …
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[/table]

[/td][/tr]
[tr][td=2,1]Early Detection of Breast Cancer by Molecular Analysis of Ductal Lavage Fluid[/td][td]
JUN 2004
[/td][td]
47 pages
[/td][/tr]
[tr][td=5,1]Authors: Saraswati Sukumar; JOHNS HOPKINS UNIV BALTIMORE MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Reliable intermediate biological markers for breast cancer risk, than can be easily detected in both pre- and post- menopausal women, do not exist at the present time. For more than 20 years, the ability to access breast ductal fluid through the nipple has prompted initiatives to develop a PAP-like test for breast cancer. Yields were variable, not every woman yielded fluid, and there was no assurance of obtaining samples from …
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[/table]

[/td][/tr]
[tr][td=2,1]ESTCP Technology Demonstration Final Report: Field Demonstration of Rhizosphere-Enhanced Treatment of Organics-Contaminated Soils on Native American Lands With Application to Northern FUD Sites[/td][td]
JUN 2004
[/td][td]
98 pages
[/td][/tr]
[tr][td=5,1]Authors: C. M. Reynolds; ENGINEER RESEARCH AND DEVELOPMENT CENTER HANOVER NH COLD REGIONS RESEARCH AND ENGINEERING LAB [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The problem that these ESTCP demonstrations addressed is surface soil contaminated with petroleum, located at remote sites, covering large areas, and in cold climates. There are many such Department of Defense (DoD) sites in Alaska. These sites are generally not easily accessible, thus increasing the costs of mobilization and demobilization, have limited infrastructure to support traditional cleanup, are subject to harsh winters, causing equipment failures. Conventional cleanup strategies are sufficiently …
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[/table]

[/td][/tr]
[tr][td=2,1]PC - Working Places and Conjunctival Germs[/td][td]
JUN 2004
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Helga Hahn; FERNWAERME WIEN GMBH VIENNA (AUSTRIA) DEPT OF OCCUPATIONAL HEALTH
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This study set out to answer the following question: Is it possible to draw conclusions bout workers’ hygiene and the hygienic status of the mouse and keyboard from the conjunctival germ spectrum found at personal computer (PC) workstations? To find out, different workstations were investigated: those where the keyboard and mouse were used by only one employee, and those where the keyboard and mouse were used by several employees. The …
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[tr][td=2,1]Offshore In-Situ Burn Familiarization Video (CD-ROM)[/td][td]
Jun-2004
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: COAST GUARD RESEARCH AND DEVELOPMENT CENTER GROTON CT
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
ELECTRONIC FILE CHARACTERISTICS: 9 files; Datavideo files. PHYSICAL DESCRIPTION: 1 computer laser optical disc (CD-ROM); 4 3/4 in.; 428 MB. SYSTEMS DETAIL NOTE: Datavideo player is included on disc. Video playtime is 20 min. ABSTRACT: Video demonstrating the techniques and usefulness of in-situ burn (ISB) to facilitate the clean-up of offshore oil spills.
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[tr][td=2,1]Estrogen-Induced Depurination of DNA: A Novel Target for Breast Cancer Prevention[/td][td]
MAY 2004
[/td][td]
33 pages
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[tr][td=5,1]Authors: Ercole Cavalieri; NEBRASKA UNIV MEDICAL CENTER OMAHA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The hypothesis that depurinating estrogen-DNA adducts initiate breast cancer by generating mutations is at the center of the research in this BCCOE. Inhibition of this adduct formation is anticipated to reduce estrogen-induced mutagenesis, neoplastic transformation and development of tumors. The research includes: (1) Testing the ability of two preventative agents to inhibit the induction of mammary tumors in female ACI rats implanted with estradiol. The profile of estrogen metabolites, conjugates, …
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[tr][td=2,1]Guidance for Optimizing Remedy Evaluation, Selection, and Design[/td][td]
APR 2004
[/td][td]
60 pages
[/td][/tr]
[tr][td=5,1]Authors: NAVAL FACILITIES ENGINEERING SERVICE CENTER PORT HUENEME CA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This document provides a general overview and explanation of key optimization concepts as they pertain to the FS, ROD, and RD cleanup phases. This document is not intended to provide guidance on determining site-specific risk-based cleanup goals, performing risk assessments, conducting site assessments and background investigations, or other sitespecific contaminant characterization activities for which United States Environmental Protection Agency (U.S. EPA) and Navy guidance already exists. Rather, this document complements …
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[tr][td=2,1]Lessons Learned Using Fractions to Assess Risk at Petroleum Release Sites[/td][td]
APR 2004
[/td][td]
50 pages
[/td][/tr]
[tr][td=5,1]Authors: Dennis A. Reed; Teresa R. Sterner; OPERATIONAL TECHNOLOGIES CORP BEAVERCREEK OH [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Total petroleum hydrocarbon (TPH) fractional analysis and tiered risk assessments at petroleum release sites are replacing cleanup approaches based upon total TPH concentrations. Field demonstrations of the Total Petroleum Hydrocarbon Criteria Working Group (TPHCWG) approach for assessing human health risk at petroleum release sites were performed at eight Department of Defense installations. One site also provided an opportunity to demonstrate the Massachusetts Department of Environmental Protection methodology and compare the …
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[tr][td=2,1]In Situ Thermal Treatment of Chlorinated Solvents: Fundamentals and Field Applications[/td][td]
01-Mar-2004
[/td][td]
146 pages
[/td][/tr]
[tr][td=5,1]Authors: ENVIRONMENTAL PROTECTION AGENCY WASHINGTON DC OFFICE OF SOLID WASTE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report contains information about the use of in situ thermal treatment technologies to treat chlorinated solvents in source zones containing free-phase contamination or high concentrations of contaminants that are either sorbed to soil or dissolved in groundwater in the saturated or unsaturated zone. Chlorinated solvent source zones have a high frequency of occurrence at hazardous waste sites. In situ thermal treatment technologies have proven to be effective in remediating …
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[tr][td=2,1]Expert Consensus on MIC: Prevention and Monitoring, Part 1[/td][td]
MAR 2004
[/td][td]
6 pages
[/td][/tr]
[tr][td=5,1]Authors: P. J. Scott; Sue Borenstein; Freeman Blackburn; Bruce Cookingham; Dan Demarco; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This article, produced by NACE International Task Group 304, discusses the general industrial practice currently recommended by experts in the field of microbiologically influenced corrosion (MIC). Part 1 of two parts, the article discusses where MIC problems are likely to occur (e.g., pipelines, the chemical process industry, cooling water systems, fire protection systems, docks, piers, oil platforms, other quatic structures, pulp and paper machinery, power generation plants, and desalination equipment); …
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[tr][td=2,1]Novel Recruitment Techniques for a Study of Culture-Specific Diet, Metabolic Variability and Breast Cancer Risk in African-American Women[/td][td]
AUG 2003
[/td][td]
160 pages
[/td][/tr]
[tr][td=5,1]Authors: Fred F. Kadlubar; Christine B. Ambrosone; NATIONAL CENTER FOR TOXICOLOGICAL RESEARCH JEFFERSON AR [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
There are few studies examining breast cancer risk in African Americans and fewer still in the rural south. African-American women are more frequently diagnosed with aggressive breast cancer than Caucasian women. Socioeconomic factors do not completely explain the ethnic differences in breast cancer mortality. The purpose of this pilot study was to develop a novel method of recruitment, focused primarily on minority women, and investigate previously unexplored risk factors for …
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[tr][td=2,1]Joint Service Solvent Substitution Methodology[/td][td]
MAY 2003
[/td][td]
28 pages
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[tr][td=5,1]Authors: NAVAL FACILITIES ENGINEERING SERVICE CENTER PORT HUENEME CA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The Naval Facilities Engineering Service Center (NFESC) was tasked to develop a process that can be used to ensure successful implementation of environmentally friendly solvents. NFESC contacted and coordinated with the Navy, Army, and Air Force to develop a Joint Service Solvent Substitution Methodology." The methodology, derived in part from existing information supplied by these DOD agencies, can be used as a tool for establishing the compatibility, environmental, and cleaning …
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[tr][td=2,1]90-Day Oral Toxicity Study on n-Nonane in female Fisher 344 Rats and Male C57BL/6 Mice[/td][td]
MAY 2003
[/td][td]
43 pages
[/td][/tr]
[tr][td=5,1]Authors: Darol R. Dodd; Robin E. Wolfe; Daniel L. Pollard; Elaine A. Merrill; Teresa R. Sterner; OPERATIONAL TECHNOLOGIES CORP BEAVERCREEK OH [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Contamination of soil and groundwater with petroleum products is a common environmental problem at Air Force (AF) bases and other Department of Defense (DOD) installations. At over 4000 groundwater contamination sites belonging to the AF, approximately 60 percent involve some type of petroleum product. Petroleum products include gasoline, diesel fuel and jet propulsion (JP) fuel. Millions of dollars are spent each year to assess and remediate petroleum contamination. However, much …
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[/td][/tr]
[tr][td=2,1]Modeling Catalytic Destruction of Subsurface Contaminants in Recirculating Wells[/td][td]
MAR 2003
[/td][td]
90 pages
[/td][/tr]
[tr][td=5,1]Authors: Kerry J. Cadena; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Groundwater and soil contamination is a significant problem throughout the nation, with approximately 300,000 to 400,000 sites affected (National Research Council, 1994). Examples of groundwater contaminants of special interest to DoD and AF installations include fuel hydrocarbons, chlorinated hydrocarbons, and nitroaromatic compounds. Traditional remediation technologies, which include pump-and-treat, pen%permeable reactive barriers, and natural attenuation, have numerous drawbacks associated with them. These drawbacks have prompted researchers to look for innovative contamination …
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[tr][td=15%]Total Results: 1118
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Pages: Previous [1] 2 3 4 5 6 7 8 9 10 11 Next
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[tr][td=15%]Total Results: 1543
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Results per page:
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[tr][td]Sort by:[/td][td=80]Title[/td][td=80]Date [/td][td=80]Pages[/td][td=60]Display:[/td][td=150]
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[tr][td][table=98%]
[tr][td=2,1]Development of a Quadcon Refrigerated Container with First Generation Prototype Solar Adsorption Refrigeration System
[/td][td]
JUN 2011
[/td][td]
101 pages
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[tr][td=5,1]Authors: J. D. Carruthers; ADVANCED TECHNOLOGY MATERIALS INC DANBURY CT [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Report for Broad Agency Announcement (BAA) Congressional Plus-up. The Army recognizes the merits of using renewable energy to power refrigeration systems aboard mobile cold-storage systems used for perishable rations in operational theaters. This report documents efforts to develop a solar-powered adsorption refrigerator for food refrigeration in a QuadCon container. The work was performed between October 2007 and April 2010 under a Broad Agency Announcement project funded as a Congressional Plus-Up …
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[tr][td=2,1]Guidelines for Evaluating the Thermal Environment of Enclosed Spaces[/td][td]
Sep-2009
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55 pages
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[tr][td=5,1]Authors: Laurie A Blanchard; William R Santee; Anthony J Karis; Stephen P Mullen; Julio A Gonzalez; Daniel M Cadarette; ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA BIOPHYSICS AND BIOMEDICAL MODELING DIV [/td][/tr]
[tr][td=6,1][table=98%]
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Thermal stress due to heat or cold may impact comfort, the ability to conduct operations, and, potentially, the survival of Warfighters. This report provides background information and methods for characterizing the properties of enclosed spaces (vehicles, shelters, other enclosures) that impact the thermal state of Warfighters. Quantification of the thermal environment of an enclosure consists of measuring air and surface temperatures, humidity, air flow; and radiant load. Methods focus on …
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[tr][td=2,1]Modeling the Effects of a Transportation Security Incident on the Commercial Container Transportation System[/td][td]
Sep-2009
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100 pages
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[tr][td=5,1]Authors: Luis A Bencomo; NAVAL POSTGRADUATE SCHOOL MONTEREY CA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
We develop a modeling tool to represent freight container flows and the potential changes in cost of those flows inflicted on the U.S. commercial transportation system by a Transportation Security Incident (TSI). Our model includes available data on container movements, origin-destination (O-D) matrices for international container flows entering or leaving the U.S., and development of an attacker-defender model to determine best contingency plans after a TSI. We design a multi-commodity …
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[tr][td=2,1]Defense Logistics: Information on the Test and Evaluation and Assignment and Cancellation of National Stock Numbers as It Relates to MILITEC-1[/td][td]
25-Jun-2009
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25 pages
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[tr][td=5,1]Authors: GOVERNMENT ACCOUNTABILITY OFFICE WASHINGTON DC [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The purpose of this letter is to respond to your request for information regarding the test and evaluation process conducted by the Department of Defense (DOD) of a specific synthetic lubricant called MILITEC-1 that is produced by Militec, Inc., and the assignment and cancellation of national stock numbers (NSN) associated with that product. Militec, Inc., has challenged DOD decisions not to include MILITEC-1 in the federal supply system. Specifically, we …
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[tr][td=2,1]Surfacing Rescue Container Concept Design for Trident Submarines[/td][td]
JUN 2009
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190 pages
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[tr][td=5,1]Authors: Joshua J. LaPenna; MASSACHUSETTS INST OF TECH CAMBRIDGE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
In the wake of the KURSK tragedy, world navies have brought their full attention to the submarine rescue problem. While many rescue systems exist, none have been able to sufficiently address the gamut of scenarios that place submariners in peril. One rescue strategy utilizes a submarine escape capsule commonly referred to as a Surfacing Rescue Container (SRC). The United States has never adopted the underlying strategy. This paper recognizes the …
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[tr][td=2,1]Intermodal War: Assessing Containerized Power Projection[/td][td]
27-May-2009
[/td][td]
31 pages
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[tr][td=5,1]Authors: James L Evenson; ARMY WAR COLL CARLISLE BARRACKS PA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The successes of American military power in recent years relied greatly on the effective movement of massive quantities of materiel. Trucks, trains, and ships carrying intermodal containers delivered most of this materiel. The commercial transportation industry developed this intermodal support capability over time beginning with the introduction of the railroads in the early nineteenth century. The military quickly adapted the various ongoing developments for martial purposes. Since those earliest developments …
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[tr][td=2,1]Controlling Ethylene for Extended Preservation of Fresh Fruits and Vegetables[/td][td]
Dec-2008
[/td][td]
6 pages
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[tr][td=5,1]Authors: Peter Lavigne; Zach Patterson; Shubham Chandra; Derek Affonce; Karen Benedek; Phil Carbone; ARMY NATICK RESEARCH DEVELOPMENT AND ENGINEERING CENTER MA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This paper describes work conducted to enhance the quality of fresh produce delivered to troops around the world. Specifically, the program objective is to control ethylene produced by fresh fruits and vegetables (FF&V) in refrigerated containers with the use of a novel Ethylene Elimination Unit (EEU). This paper describes the analytical, experimental, and design work conducted to establish the feasibility of the EEU. Analytical modeling and process simulation were used …
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[tr][td=2,1]The Federal Workforce: Characteristics and Trends[/td][td]
30-Sep-2008
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[tr][td=5,1]Authors: Curtis W Copeland; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
Understanding the characteristics and trends of the federal workforce is important because, among other things, agencies accomplish their missions via that workforce. Total personnel costs (direct compensation and benefits) for all federal employees (civilian and military, current employees and retirees) were estimated at more than $523 billion in 2008, and civilian personnel costs in the executive branch alone were estimated at about $194 billion. Three cabinet departments the Departments of …
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[tr][td=2,1]Strategic Collaboration Beyond a String and Two Cans[/td][td]
19 MAR 2008
[/td][td]
29 pages
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[tr][td=5,1]Authors: Stephen C. Sobotta; ARMY WAR COLL CARLISLE BARRACKS PA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Why is there a need to improve upon strategic collaboration especially in the military and Department of Defense? This new strategic environment in which leaders at all levels especially at the strategic level find themselves drives the need to make decisions more quickly and with more input from outside their own organizations. Gone are the days of strictly military service-specific collaboration. Today’s new strategic environment requires military leaders to work …
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[tr][td=2,1]Real-Time Dispatching of Rubber Tired Gantry Cranes in Container Terminals[/td][td]
MAR 2008
[/td][td]
57 pages
[/td][/tr]
[tr][td=5,1]Authors: Bradley S. McNary; NAVAL POSTGRADUATE SCHOOL MONTEREY CA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Within the past 50 years containerization and globalization have driven a change from small container terminals to large container terminals that need efficient logistic models to keep up with the significant growth in container traffic. Efficiently managing of rubber tired gantry cranes and planning container placement within the terminal are two ways to increase the overall efficiency of a terminal. In this thesis, we combine these strategies in a real-time …
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[tr][td=2,1]Precision Airdrop Technology Conference and Demonstration (4th) 2007[/td][td]
01-Feb-2008
[/td][td]
141 pages
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[tr][td=5,1]Authors: Jamie Bishop; Andrew Meloni; Richard Benney; ARMY NATICK RESEARCH DEVELOPMENT AND ENGINEERING COMMAND MA NATICK SOLDIER CENTER [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report summarizes the 4th Biennial Precision Airdrop Technology Conference and Demonstration (PATCAD) conducted at the United States (US) Army Yuma Proving Ground (YPG), from 22 to 25 October 2007. The US Army Natick Soldier Research, Development, and Engineering Center (NSRDEC) was the primary sponsor. The first part of PATCAD 2007 consisted of a one-day conference at the Yuma Civic and Convention Center, where presentations were provided by participants. The …
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[tr][td=2,1]Global Fleet Station: Station Ship Concept[/td][td]
Feb-2008
[/td][td]
68 pages
[/td][/tr]
[tr][td=5,1]Authors: Simon Howard; NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD SHIP SYSTEMS INTEGRATION AND DESIGN DEPARTMENT [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The Global Fleet Station concept is proposed to act as a persistent Sea Base of operations from which to coordinate and employ adaptive force packages within a region of interest. These can primarily be broken down into two types of missions; training and support and humanitarian aid. In support of the Military Effectiveness Group at NSWC-CD, the Center for Innovation in Ship Design developed the Global Fleet Station Station Ship …
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[tr][td=2,1]Alanine Dosimetry Accurately Determines Radiation Dose in Nonhuman Primates[/td][td]
OCT 2007
[/td][td]
32 pages
[/td][/tr]
[tr][td=5,1]Authors: V. Nagy; N. C. Parra; M. O. Shoemaker; T. B. Elliott; G. D. Ledney; ARMED FORCES RADIOBIOLOGY RESEARCH INST BETHESDA MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The unique capabilities of the Armed Forces Radiobiology Research Institute’s (AFRRI) cobalt-60 (Co60) gamma-photon irradiator were used for bilateral whole-body irradiation of the nonhuman primate (NHP) Macaca mulatta. In this study, 6.5 Gy radiation was delivered at 0.4 Gy/min to 24 male NHPs 7-10 years of age weighing 7-14 kg in order to evaluate the (a) pharmacokinetics and pharmacodynamics (PK/PD) of ciprofloxacin (CIP) in an irradiated non-rodent large-animal species phylogenetically …
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[tr][td=2,1]Anopheles lindesayi japonicus Yamada (Diptera: Culicidae) in Korea: comprehensive review, new collection records, and description of larval habitats[/td][td]
Sep-2007
[/td][td]
9 pages
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[tr][td=5,1]Authors: William J Sames; Heung C Kim; Terry A Klein; Leopoldo M Rueda; Sung T Chong; Bruce A Ja Harrison; Won- Lee; WALTER REED ARMY INST OF RESEARCH SILVER SPRING MD DEPT OF ENTOMOLOGY [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Anopheles lindesayi japonicus Yamada is an uncommonly collected mosquito in Korea, and its presence is based upon limited collection data and anecdotal reports in Korean mosquito literature: 45 specimens collected from 15 identified sites. This study reports the collection of 538 specimens from 16 sites as part of the authors’ 2004-2007 anopheline surveillance. Larvae were collected from stream margins, stream pools, rock pools, seepage springs, artificial containers, swamps, and ditches …
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[tr][td=2,1]Air Cargo Security[/td][td]
30 JUL 2007
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[tr][td=5,1]Authors: Bart Elias; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
The air cargo system is a complex, multi-faceted network that handles a vast amount of freight, packages, and mail carried aboard passenger and all-cargo aircraft. The air cargo system is vulnerable to several security threats including potential plots to place explosives aboard aircraft; illegal shipments of hazardous materials; criminal activities such as smuggling and theft; and potential hijackings and sabotage by persons with access to aircraft. Several procedural and technology …
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[tr][td=2,1]DOD’s HIGH-RISK ARES: Efforts to Improve Supply Chain Can Be Enhanced by Linkage to Outcomes, Progress in Transforming Business Operations, and Reexamination of Logistics Governance and Strategy[/td][td]
10 JUL 2007
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31 pages
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[tr][td=5,1]Authors: William M. Solis; GOVERNMENT ACCOUNTABILITY OFFICE WASHINGTON DC [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The most recent update to the plan shows that DOD has made progress developing and implementing its supply chain management improvement initiatives, but the current performance measures in the plan do not fully demonstrate results. DOD is generally staying on track for implementing its initiatives, although there have been delays in meeting certain milestones. Notwithstanding this overall progress and the commitment of DOD leadership to resolving supply chain problems, the …
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[tr][td=2,1]Evaluation Transportability Testing of the Joint Modular Intermodal Platform (JMIP) Unit #4, TP-94-01, Transportability Testing Procedures[/td][td]
JUL 2007
[/td][td]
38 pages
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[tr][td=5,1]Authors: ARMY DEFENSE AMMUNITION CENTER MCALESTER OK VALIDATION ENGINEERING DIV [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The U.S. Army Defense Ammunition Center (DAC), Validation Engineering Division (SJMAC-DEV), was tasked by the Logistics Research and Engineering Directorate (AMSRD-AAR-AIL-F), Picatinny Arsenal, NJ to conduct evaluation transportability testing on the Joint Modular Intermodal Platform (JMIP) Unit #4 manufactured by SEA BOX, Inc, East Riverton, NJ. The testing was conducted in accordance with TP-94-01, Revision 2, June 2004 “Transportability Testing Procedures.” The test payload consisted of a mixed load of …
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[tr][td=2,1]Evaluation Transportability Testing of the Joint Modular Intermodal Platform (JMIP) Unit #4, TP-94-01, Transportability Testing Procedures[/td][td]
JUL 2007
[/td][td]
35 pages
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[tr][td=5,1]Authors: ARMY DEFENSE AMMUNITION CENTER MCALESTER OK VALIDATION ENGINEERING DIV [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The U.S. Army Defense Ammunition Center (DAC), Validation Engineering Division (SJMAC-DEV), was tasked by the Logistics Research and Engineering Directorate (AMSRD-AAR-AIL-F), Picatinny Arsenal, NJ, to conduct evaluation transportability testing on the Joint Modular Intermodal Platform (JMIP) Unit #4 manufactured by SEA BOX, Inc, East Riverton, NJ. The testing was conducted in accordance with TP-94-01, Revision 2, June 2004, “Transportability Testing Procedures.” The test payload consisted of pallets of 155MM Separate …
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[/td][/tr]
[tr][td=2,1]Evaluation Transportability Testing of the Joint Modular Intermodal Platform (JMIP) Unit #4, TP-94-01, Transportability Testing Procedures[/td][td]
JUL 2007
[/td][td]
33 pages
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[tr][td=5,1]Authors: ARMY DEFENSE AMMUNITION CENTER MCALESTER OK VALIDATION ENGINEERING DIV [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The U.S. Army Defense Ammunition Center (DAC), Validation Engineering Division (SJMAC-DEV), was-tasked by the Logistics Research and Engineering Directorate (AMSRD-AAR-AIL-F), Picatinny Arsenal, NJ to conduct evaluation transportability testing on the Joint Modular Intermodal Platform (JMIP) Unit #4 manufactured by SEA BOX, Inc, East Riverton, NJ. The testing was conducted in accordance with TP-94-01, Revision 2, June 2004, “Transportability Testing Procedures.” The test payload consisted of pallets of 155MM Separate Loading …
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[tr][td=2,1]What are Chemical Agents and Chemical Weapons?[/td][td]
08 JUN 2007
[/td][td]
3 pages
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[tr][td=5,1]Authors: ARMY CHEMICAL MATERIALS AGENCY ABERDEEN PROVING GROUND MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Chemical agents are toxic liquid compounds. The nation’s stockpile consists of two principal types of chemical agents: nerve and blister. These agents are securely stored at seven locations in the United States and are either contained in one of five types of munitions or stored in steel bulk storage containers, called ton containers. The ton containers hold about 170 gallons of liquid agent and weigh approximately 1,600 pounds empty. Over …
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[/table]

[/td][/tr]
[tr][td=2,1]An Analysis of the Joint Modular Intermodal Distribution System[/td][td]
JUN 2007
[/td][td]
93 pages
[/td][/tr]
[tr][td=5,1]Authors: Thomas Louden; Brian Luebbert; Nathan Winn; NAVAL POSTGRADUATE SCHOOL MONTEREY CA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The Joint Modular Intermodal Distribution System (JMIDS) is a Joint Capability Technology Demonstration (JCTD) initiative approved by the Deputy Under Secretary of Defense for Advanced Systems and Concepts. The purpose of JCTD is to evaluate a joint capability through Military Utility Assessments (MUAs) under a variety of military scenarios, while JMIDS aims to address interoperability problems facing the military supply chain. The operational concept of JMIDS is to provide a …
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[/table]

[/td][/tr]
[tr][td=2,1]Environmental Activities of the U.S. Coast Guard[/td][td]
25 APR 2007
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Mark Reisch; Jonathan L. Ramseur; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The U%S Coast Guard’s (USCG’s) envfrorn%ental activities focus on prevention programs, accompanied by enlorcement and educational activities An important component is mantime oil spill prevention, which includes inspection of U%S and foreign-flagged ships to ensure compliance with U%S. laws and international agreements. As required by the Oil Pollution Act and the Superfind law, the USCG’s pollution preparedness and response activities aim to reduce the impact of oil and hazardous substances …
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[/table]

[/td][/tr]
[tr][td=2,1]Recycled Glass and Dredged Materials[/td][td]
MAR 2007
[/td][td]
13 pages
[/td][/tr]
[tr][td=5,1]Authors: Jr Lee Landris T.; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS GEOTECHNICAL AND STRUCTURES LAB [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This technical note explores the concepts and applications of recovering and reusing two common disposable materials (crushed glass and dredged spoil) for beneficial engineering purposes. Dewatered fine-grained dredged material (DM) amended with glass cullet may prove to be a marketable combination especially useful as an engineered material and construction aggregate substitute. RECYCLED GLASS: Glass is manufactured from silica sand (SiO2) and other compounds, and occurs naturally as black obsidian rock …
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[/td][/tr]
[tr][td=2,1]Building Qualitative Models of Thermodynamic Processes[/td][td]
2007
[/td][td]
77 pages
[/td][/tr]
[tr][td=5,1]Authors: John W. Collins; Kenneth D. Forbus; ILLINOIS UNIV AT URBANA BECKMAN INST [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This paper describes a qualitative domain theory for core phenomena in engineering thermodynamics, expressed in Qualitative Process theory. It represents many of the best features of domain models developed by our group over the past five years. It focuses on supporting system-level qualitative analyses of typical fluid and thermal systems, such as refrigerators and power plants. We use explicit modeling assumptions [3] to control the level of detail used in …
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[/td][/tr]
[tr][td=2,1]Enhanced On-Site Container: Safe Movement of Chemical Munitions[/td][td]
2007
[/td][td]
2 pages
[/td][/tr]
[tr][td=5,1]Authors: ARMY CHEMICAL MATERIALS AGENCY ABERDEEN PROVING GROUND MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Safely storing and moving stockpiled chemical agent and munitions to a chemical agent disposal facility is an important component of the mission of the U.S. Army Chemical Material Agency (CMA). Specialized equipment is used to move agent and munitions in this first step of chemical weapons disposal. In the l980’s, the U.S. Army - in partnership with Sandia National[ Laboratories in New Mexico - developed an on-site container known as …
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[/td][/tr]
[tr][td=2,1]A Comparative Analysis of the Department of Defense (DoD) Passive Radio Frequency Identification (RFID) Policy and Perspective in Terms of Site Implementations[/td][td]
JUN 2006
[/td][td]
118 pages
[/td][/tr]
[tr][td=5,1]Authors: Jacqueline M. Meyer; Sefa Demirel; NAVAL POSTGRADUATE SCHOOL MONTEREY CA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The purpose of this MBA project is to conduct a comparative analysis of DoDs passive RFID policy and perspective in terms of site implementations at the Fleet and Industrial Supply Center (FISC), Norfolk, Virginia, Ocean Terminal Division (OTD), and the Defense Distribution Depot San Joaquin (DDJC), California. The FISC, Norfolk, OTD, Container Freight Station has been at the forefront of DoD activities implementing passive RFID and is currently using RFID …
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[/table]

[/td][/tr]
[tr][td=2,1]Dynamic Consolidation of TaC and Nano-YSZ Powders (PREPRINT)[/td][td]
07 FEB 2006
[/td][td]
10 pages
[/td][/tr]
[tr][td=5,1]Authors: Lei Xu; Darrell Marchant; Lawrence Matson; B. S. Majumdar; NEW MEXICO INST OF MINING AND TECHNOLOGY SOCORRO DEPT OF METALLURGICAL AND MATERIALS ENGINEERING [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The high melting point of TaC (3880 deg C), second amongst all known materials, along with good corrosion resistance makes TaC a potential candidate for Air Force applications. However, traditional methods of manufacturing, such as hot pressing or HIP-ing, give rise to rapid grain growth and low fracture toughness. In this work, we have utilized dynamic consolidation technique to overcome the grain growth problem, and thereby obtain stronger and more …
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[/td][/tr]
[tr][td=2,1]Development of the B-52 Nose Radome Container, CNU-680/E[/td][td]
30 JAN 2006
[/td][td]
33 pages
[/td][/tr]
[tr][td=5,1]Authors: Susan J. Evans; AIR FORCE PACKAGING TECHNOLOGY AND ENGINEERING FACILITY WRIGHT-PATTERSON AFB OH [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The objective of this test series was to qualify the B-52 Nose Radome Shipping and Storage container, AFPTEF project number O4-P-111, for production release by AFMC LSO/LOP. The container is a sealed, reusable, aluminum container engineered for the physical and environmental protection of the B-52 Nose Radome during worldwide transportation and storage.
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[/table]

[/td][/tr]
[tr][td=2,1]Evaluation of Ahura’s First Defender Handheld Chemical Identifer[/td][td]
JAN 2006
[/td][td]
55 pages
[/td][/tr]
[tr][td=5,1]Authors: Robin L. Matthews; Kwok Y. Ong; Christopher D. Brown; Leyun Zhu; Kevin Knopp; EDGEWOOD CHEMICAL BIOLOGICAL CENTER ABERDEEN PROVING GROUND MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The handheld Raman spectrometer for point detection of chemicals developed by Ahura Corporation was tested using chemical warfare agents (CWAs). The device was assessed for its capacity to detect and identify liquid through sealed glass containers in a completely non-contact, non-destructive manner. The CWAs tested included the following: mustard (HD), nitrogen mustard (HN1 and HN3), VX, tabun (GA), sarin (GB), and lewisite (L). Detection characteristics were examined for neat agents, …
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[/table]

[/td][/tr]
[tr][td=2,1]Port and Supply-Chain Security Initiatives in the United States and Abroad[/td][td]
Jan-2006
[/td][td]
239 pages
[/td][/tr]
[tr][td=5,1]Authors: Leigh B Boske; TEXAS UNIV AT AUSTIN LYNDON B JOHNSON SCHOOL OF PUBLIC AFFAIRS [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Between 1990 and 2004, the value of U.S. international trade increased from $889 billion to nearly $2.2 trillion. Roughly two-thirds of this total value of trade passed through U.S. freight gateways (primarily ports) to and from countries other than Canada and Mexico. The top 50 U.S. ports accounted for about 90 percent of all maritime cargo tonnage; and 25 U.S. ports accounted for 98 percent of all container shipments. In …
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[/table]

[/td][/tr]
[tr][td=2,1]Evaluation of Ahura’s Firstdefender Handheld Chemical Identifier[/td][td]
JAN 2006
[/td][td]
54 pages
[/td][/tr]
[tr][td=5,1]Authors: Robin L. Matthews; Kwok Y. Ong; Christopher D. Brown; Leyun Zhu; Kevin Knopp; EDGEWOOD CHEMICAL BIOLOGICAL CENTER ABERDEEN PROVING GROUND MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The hand held Raman spectrometer for point detection of chemicals developed by Ahura Corporation was tested using chemical warfare agents (CWAs). The device was assessed for its capacity to detect and identify liquid through sealed glass containers in a completely non-contact, non-destructive manner. The CWAs tested included the following: mustard (HD), nitrogen mustard (HN1 and HN3), VX, tabun (GA), sarin (GB), and lewisite (L). Detection characteristics were examined for neat …
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[/table]

[/td][/tr]
[tr][td=2,1]XM982 155-mm Artillery Projectile Container Support System: Finite-Element Model Development and Analysis[/td][td]
SEP 2005
[/td][td]
36 pages
[/td][/tr]
[tr][td=5,1]Authors: Michael Minnicino; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The XM982 Excalibur container suppon system is intended to protect the Excalibur munition during transportation by mitigating shock and vibration loadings in addition to performing other functions such as supplementing insensitive munition capabilities. The development of a finite-element (FE) model is a valitable tool for investigating design modifications to the container-foam support system without the need for expensive experimental tests. The FE model facilitates the determination of any design issues …
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[/table]

[/td][/tr]
[tr][td=2,1]Packing in Two and Three Dimensions[/td][td]
24 AUG 2005
[/td][td]
176 pages
[/td][/tr]
[tr][td=5,1]Authors: Gustavo H. Martins; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF OPERATIONS RESEARCH [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This dissertation investigates Multidimensional Packing Problems (MD-PPs): the Pallet Loading Problem (PLP), the Multidimensional Knapsack Problem (MD-KP), and the Multidimensional Bin Packing Problem (MD-BPP). In these problems, there is a set of items, with rectangular dimensions, and a set of large containers, or bins, also with rectangular dimensions. Items cannot overlap (share the same region in space), and, when packed, must be completely located within the bin. We develop new …
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[/table]

[/td][/tr]
[tr][td=2,1]Using Containers to Enforce Smart Constraints for Performance in Industrial Systems[/td][td]
AUG 2005
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Scott A. Hissam; Gabriel A. Moreno; Kurt C. Wallnau; CARNEGIE-MELLON UNIV PITTSBURGH PA SOFTWARE ENGINEERING INST
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Today, software engineering is concerned less with individual programs than with large-scale networks of interacting programs. For large-scale networks, engineering problems emerge that go well beyond functional correctness (the purview of programming) and encompass equally crucial nonfunctional qualities such as security, performance, availability, and fault tolerance. A pivotal challenge, then, is to provide techniques to routinely construct systems that have predictable nonfunctional quality. These techniques impose constraints on the problem …
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[/table]

[/td][/tr]
[tr][td=2,1]The Joint Modular Intermodal Container, is this the Future of Naval Logistics?[/td][td]
JUN 2005
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Mark E. Johnson; MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF OCEAN ENGINEERING
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Under the fiscal reality of the 21st century military budget, the typically manpower intensive United States Navy has had to learn to do more with less of everything, in many cases specifically less sailors. One mission area that is prime for manpower reduction is naval logistics. JMIC, the Joint Military Intermodal Container is a combined Naval Sea Systems Command/ Office of the Chief of Naval Operations (NAVSEA/OPNAV) program that is …
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[/table]

[/td][/tr]
[tr][td=2,1]Port and Maritime Security: Background and Issues for Congress[/td][td]
27 MAY 2005
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: John F. Frittelli; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The terrorist attacks of September 11, 2001 heightened awareness about the vulnerability to terrorist attack of all modes of transportation. Port security has emerged as a significant part of the overall debate on U.S. homeland security. The overarching issues for Congress are providing oversight on current port security programs and making or responding to proposals to improve port security. The U.S. maritime system consists of more than 300 sea and …
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[/table]

[/td][/tr]
[tr][td=2,1]Pin Component Technology (V1.0) and Its C Interface[/td][td]
APR 2005
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Scott Hissam; James Ivers; Daniel Plakosh; Kurt C. Wallnau; CARNEGIE-MELLON UNIV PITTSBURGH PA SOFTWARE ENGINEERING INST
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Pin is a basic, simple component technology suitable for building embedded software applications. Pin implements the container idiom for software components. Containers provide a pre-fabricated “shell” in which custom code executes and through which all interactions between custom code and its external environment are mediated. Pin is a component technology for pure assembly – systems are assembled by selecting components and connecting their interfaces (which are composed of communication channels …
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[/table]

[/td][/tr]
[tr][td=2,1]Aviation Security-Related Findings and Recommendations of the 9/11 Commission[/td][td]
30 MAR 2005
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Bart Elias; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The 9/11 Commission found that al Qaeda operatives exploited known weaknesses in U.S. aviation security to carry out the terrorist attacks of September 11, 2001. While legislation and administration actions after September 11, 2001 were implemented to strengthen aviation security, the 9/11 Commission concluded that several weaknesses continue to exist. These include perceived vulnerabilities in cargo and general aviation security as well as inadequate screening and access controls at airports. …
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[/table]

[/td][/tr]
[tr][td=2,1]Air Cargo Security[/td][td]
13 JAN 2005
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Bartholomew Elias; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The air cargo system is a complex, multi-faceted network that handles a vast amount of freight, packages, and mail carried aboard passenger and all-cargo aircraft. The air cargo system is vulnerable to several security threats including potential plots to place explosives aboard aircraft; illegal shipments of hazardous materials; criminal activities such as smuggling and theft; and potential hijackings and sabotage by persons with access to aircraft. While it is generally …
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[/td][/tr]
[tr][td=2,1]Relative Abundance of Tree Hole-Breeding Mosquitos in Boone County, Missouri, USA, with Emphasis on the Vector Potential of Aedes Triseriatus for Canine Heartworm, Dirofilaria Immitis (Spirurida: Filariidae)[/td][td]
Jan-2005
[/td][td]
6 pages
[/td][/tr]
[tr][td=5,1]Authors: Leopoldo M Rueda; Mustapha Debboun; Theodore J Green; Robert D Hall; WALTER REED ARMY INST OF RESEARCH SILVER SPRING MD DEPT OF ENTOMOLOGY [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Aedes (Protomacleaya) triseriatus currently shares its habitat in the USA with the introduced species Aedes (Finlaya) japonicus and Aedes (Stegomyia) albopictus. In the late 1980s. before the introduction of these 2 species. Ae. triseriatus was the dominant tree hole- and artificial container-breeding mosquito in central Missouri. Aedes triseriatus represented 89% of the mosquito immatures collected from water-filled tree holes and artificial containers at 3 forested field sites in central Missouri. …
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[/table]

[/td][/tr]
[tr][td=2,1]Hand-Held Ultrasonic Through-the-Wall Monitoring of Stationary and Moving People[/td][td]
NOV 2003
[/td][td]
39 pages
[/td][/tr]
[tr][td=5,1]Authors: Norbert Wild; JAYCOR SAN DIEGO CA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
A prototype system for monitoring respiration and movement through metallic and non-metallic walls has been developed and demonstrated. The man- portable sensor uses high energy ultrasonic pulses and ultra low noise amplification of the return pulse echoes to detect the breathing or motion of individuals in an enclosed space. A real-time video display on the hand-held transducer assembly provides the user with a measure of the location of the detected …
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[/table]

[/td][/tr]
[tr][td=2,1]PA116/171 Containers ona Wood Pallet With Metal Top Adapter, MIL-STD- 1660, First Article Tests[/td][td]
SEP 2003
[/td][td]
26 pages
[/td][/tr]
[tr][td=5,1]Authors: Jeffery L. Dugan; ARMY DEFENSE AMMUNITION CENTER MCALESTER OK VALIDATION ENGINEERING DIV [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The U.S. Army Defense Ammunition Center (DAC), Validation Engineering Division (SJMAC-DEV) conducted First Article Tests per MIL-STD-1660, “Design Criteria for Ammunition Unit Loads” on the PA116/171 containers on a wood pallet with metal top adapter provided by Alliant Tech Ordnance and Ground Systems LLC of Plymouth, MN. Two separate containers were tested with total weights of 2,470 lbs each. The tests accomplished on the test units were the stacking, repetitive …
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[/table]

[/td][/tr]
[tr][td=2,1]Evaluation of Triple Containment Method for Air Transport of Contaminated Human[/td][td]
AUG 2003
[/td][td]
34 pages
[/td][/tr]
[tr][td=5,1]Authors: James S. Neville; Lance L. Annicelli; Dale D. Thomas III; AIR FORCE INST FOR OPERATIONAL HEALTH BROOKS CITY-BASE TX SURVEILLANCE DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
A triple containment system intended for transport of biologically contaminated human remains was tested for its ability to maintain integrity during exposure to altitude changes representative of air transport. The system consisted of commercially available products; BioSeal(registered) material, a Ziegler case, and a Batesville casket. Each was tested individually and as a system. The BioSeal(registered) material was robust but did not maintain a seal in all tests. The Ziegler case …
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[/td][/tr]
[tr][td=2,1]Electronic Status Monitoring System for Security Containers[/td][td]
21 JUL 2003
[/td][td]
24 pages
[/td][/tr]
[tr][td=5,1]Authors: Robert C. Higgins; DEPARTMENT OF THE NAVY WASHINGTON DC [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
It is an object of the present invention to provide for a system for monitoring the status of containers or cabinets housing confidential, classified or highly classified materials. It is a further object of the present invention to provide an electrical status monitoring system that determines the presence or absence of the security mechanism that ensures the security of a container or cabinet, even if the container or cabinet is …
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[/td][/tr]
[tr][td=2,1]Biodegradation of Hydrolyzed Mustard from An ACWA Projectile Washout Study[/td][td]
01 JUL 2003
[/td][td]
9 pages
[/td][/tr]
[tr][td=5,1]Authors: Mark A. Guelta; Laurie Fazekas-Carey; EDGEWOOD CHEMICAL BIOLOGICAL CENTER ABERDEEN PROVING GROUND MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
In 1996, public laws 104-208, 105-261, and 106-79 established and expanded the Assembled Chemical Weapons Assessment (ACWA) Program. To address public concerns over safe destruction of the U.S. chemical weapon stockpile; the ACWA program was tasked to identify two or more viable alternatives technologies to the baseline destruction method of incineration. Neutralization followed by biodegradation was one technology to be successfully demonstrated in a pilot facility at the Edgewood Chemical …
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[/table]

[/td][/tr]
[tr][td=2,1]FAST Center for Environmental Remediation, Fate and Transport of Hazardous Chemicals[/td][td]
01 JUL 2003
[/td][td]
35 pages
[/td][/tr]
[tr][td=5,1]Authors: Vinayak N. Kabadi; NORTH CAROLINA AGRICULTURAL AND TECHNICAL STATE UNIV GREENSBORO [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
In 1995, U.S. Air Force Office of Scientific Research (AFOSR) funded an interdisciplinary research project entitled ‘FAST Center for Environmental Remediation, Fate and Transport of Hazardous Chemicals’ at A&T with a funding of $3.35 million for six years. The major accomplishments of the project include: (1) development of infrastructure and facilities for environmental research at A&T (2) significant research contributions in environmental science and engineering, (3) graduation of 25 M.S. …
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[tr][td=2,1]Digital Memory Cabinets: Reviving the Art of Memory for Augmented Cognition[/td][td]
14 MAY 2003
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Yvonne F. Barnard; Guy A. Boy; EUROPEAN INST OF COGNITIVE SCIENCES ANDENGINEERING EURISCO INT TOULOUSE (FRANCE)
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Observation tasks such as terrain analysis in military missions can be characterized by an overload of potentially important information, time pressure and uncertainty about the meaning and importance of information. The use of sensory and cognitive functions should be augmented to support such task performance and training. This paper proposes to combine ancient ideas with new technologies in order to realize this augmentation. The ancient ideas come from the Greek: …
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[/td][/tr]
[tr][td=2,1]A Capillary Assisted Thermosyphon For Shipboard Electronics Cooling[/td][td]
02 MAY 2003
[/td][td]
112 pages
[/td][/tr]
[tr][td=5,1]Authors: Eric H. Larsen; NAVAL ACADEMY ANNAPOLIS MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Recent advances in capillary pumped loop technology were incorporated into the design of a vertical flat plate evaporator for cooling high power electronics aboard naval vessels. This investigation included the design, fabrication, and experimentation of an evaporator plate configured for installation into a standard Navy electronics cabinet, Combining both the characteristics of a Capillary Pumped Loop (CPL) and a thermosyphon, this design integrated the wick from a CPL and the …
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[/table]

[/td][/tr]
[tr][td=2,1]Human Factors Associated With the Certification of Airplane Passenger Seats: Life Preserver Retrieval[/td][td]
MAY 2003
[/td][td]
16 pages
[/td][/tr]
[tr][td=5,1]Authors: Van Gowdy; Rick DeWeese; FEDERAL AVIATION ADMINISTRATION OKLAHOMA CITY OK CIVIL AEROMEDICAL INST [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
A series of human subject tests were conducted by the Biodynamics Research Team at the FAA’s Civil Aerospace Medical Institute (CAMI) to investigate human factors associated with the “easy reach” requirement in FAA regulations for under-seat mounted life preservers. The protocol was designed to observe and measure the effects of human physical attributes and life preserver installation features relevant to the retrieval of life preservers. A mockup of a 30-inch …
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[/td][/tr]
[tr][td=2,1]Record of Public Meeting for Operational Test of Pulsed Fast Neutron Analysis (PFNA) Cargo Inspection System at Ysleta Port of Entry Commercial Cargo Facility, El Paso, Texas[/td][td]
MAR 2003
[/td][td]
97 pages
[/td][/tr]
[tr][td=5,1]Authors: James Spacco; Stephen Haimbach; NAVAL SURFACE WARFARE CENTER DAHLGREN DIV VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This document summarizes a public meeting held in connection with the environmental assessment conducted as part of the operational test of the Pulsed Fast Neutron Analysis (PFNA) Cargo Inspection System at Ysleta Port of Entry Commercial Cargo Facility located in El Paso, Texas. The meeting was held in El Paso, Texas, on 14 January 2003 to inform the public about the project and to provide a forum for citizens and …
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[tr][td]Sort by:[/td][td=80]Title[/td][td=80]Date [/td][td=80]Pages[/td][td=60]Display:[/td][td=150]
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[tr][td=2,1]Heavy Lift Army Landing Craft
[/td][td]
Jul 2010
[/td][td]
39 pages
[/td][/tr]
[tr][td=5,1]Authors: Amir Abdelsalam; III Luder Alton; Andrea Shen; Doug Wohlenhaus; NAVAL SURFACE WARFARE CENTER CARDEROCK DIV WEST BETHESDA MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Landing craft are used to quickly transport cargo to areas where larger ships are unable to reach due to beach gradient limitations or lack of an adequate port. The current landing craft of the U.S. Army are limited by poor seakeeping capabilities and they operate at very low speeds, unloaded and fully loaded. The goal of the Heavy Lift Army Landing Craft (HLALC) project is to develop a concept design …
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[/table]

[/td][/tr]
[tr][td=2,1]Hull Mechanical and Electrical Equipment Standardization Program[/td][td]
2010
[/td][td]
15 pages
[/td][/tr]
[tr][td=5,1]Authors: DEFENSE LOGISTICS AGENCY FORT BELVOIR VA DEFENSE STANDARDIZATION PROGRAM OFFICE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This case study describes how the Navy is dramatically increasing standardization of hull mechanical and electrical (HM&E) equipment across Navy ships, thereby conserving money, manpower, and time, while improving the operational readiness and availability of the fleet.
[/td][/tr]
[/table]

[/td][/tr]
[tr][td=2,1]Hull, Mechanical, and Electrical Equipment Standardization in the U.S. Navy Surface Force: A Case of Competing Objectives and Stakeholder Trade-Off Decisions[/td][td]
14 DEC 2007
[/td][td]
156 pages
[/td][/tr]
[tr][td=5,1]Authors: Jerome R. White; ARMY COMMAND AND GENERAL STAFF COLL FORT LEAVENWORTH KS [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The lack of a successful Standardization Program for Hull, Mechanical, and Electrical (HM&E) equipment and components of ships in the surface force costs the United States Navy hundreds of millions of dollars annually. Approximately half of the total parts in the surface fleet are installed on three or fewer ships and nearly 20 percent are one of a kind. These parts are not officially considered to be “non-standard” since they …
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[/table]

[/td][/tr]
[tr][td=2,1]Axial Waterjet (AxWJ) Model 5662: Hull Resistance and Model-Scale Powering with LDV Nozzle Design[/td][td]
SEP 2007
[/td][td]
72 pages
[/td][/tr]
[tr][td=5,1]Authors: Dominic S. Cusanelli; Scott A. Carpenter; NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report is a partial documentation of the first series of model-scale tests conducted 12/06-2/07, to evaluate the Axial Waterjet (AxWJ), Model 5662, on the Joint High Speed Sealift (JHSS) hull platform. This document contains calm water resistance and model-scale powering test results only. Bare hull effective powers were determined for the AxWJ hull at three displacement conditions. Appended effective power was determined for the AxWJ hull with the LDV …
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[/table]

[/td][/tr]
[tr][td=2,1]Drop Tests to Support Water-Impact and Planing Boat Dynamics Theory[/td][td]
SEP 1997
[/td][td]
24 pages
[/td][/tr]
[tr][td=5,1]Authors: Ronald Peterson; David Wyman; Carolyn Frank; NAVAL SURFACE WARFARE CENTER PANAMA CITY FL [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The occupants of high-speed planing boats are exposed to repeated shock impacts that result from hull slamming during operation in heavy seas. An important component of the research necessary for developing shock reduction technology is two dimensional water-impact theory. Drop tests provide data necessary for evaluating. shock reduction concepts, and for developing and validating two-dimensional theory. This report summarizes the method and results of an …
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[/table]

[/td][/tr]
[tr][td=2,1]An Underwater Vehicle and a Fin Assembly Therefor.[/td][td]
07 FEB 1996
[/td][td]
14 pages
[/td][/tr]
[tr][td=5,1]Authors: William H. Nedderman Jr; DEPARTMENT OF THE NAVY WASHINGTON DC [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
A fin assembly for an underwater vehicle, the assembly comprising a portion of the hull of the vehicle having a recess therein, and a sleeve proximate a forward end of the recess and inclined inwardly from the hull portion at an angle to the hull portion and inclined transversely of the fore-and-aft axis of the vehicle at an angle to the hull portion. The assembly further comprises a fin having …
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[/table]

[/td][/tr]
[tr][td=2,1]Underwater Vehicle Tailcone Assembly.[/td][td]
14 MAR 1995
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Neil J. Dubois; DEPARTMENT OF THE NAVY WASHINGTON DC
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
There is presented an underwater vehicle tailcone assembly including a forward flange, a first tubular sheath extending rearwardly from the forward flange, and elastomer material bonded to inner and outer surfaces of the first sheath to form a forward chamber wall. The assembly further includes an aft flange, a second tubular sheath extending forwardly from the aft flange, and elastomer material bonded to inner and outer surfaces of the second …
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[/table]

[/td][/tr]
[tr][td=2,1]The National Shipbuilding Research Program. 1995 Ship Production Symposium. Paper No. 5: Producibility of Double Hull Tankers[/td][td]
JAN 1995
[/td][td]
29 pages
[/td][/tr]
[tr][td=5,1]Authors: John C. Daidola; John Parente; William H. Robinson; ROSENBLATT (M) AND SON INC NEW YORK [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Alternative structural system concepts have been developed for 40K and 95KDWT double hull tankers, with the objective of studying their producibility in existing U.S. shipyards, including labor hours and construction schedules. Structural components and elements considered included alternative material, shell plating, bulkheads, stiffeners and other structural elements for both conventional and unidirectional double hull tankers, together with shipbuilding processes such as automation and accuracy control, and standardization including design. It …
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[/table]

[/td][/tr]
[tr][td=2,1]Retractable, Lever Action, Scroll Seal for a Surface Effect Ship.[/td][td]
29 SEP 1987
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Fred W. Wilson; Timothy D. Smith; DEPARTMENT OF THE NAVY WASHINGTON DC
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This abstract discloses an improved seal design for a Surface Effect Ship, having an inflatable inner seal member, and outer seal member composed of a pliable sheet material scrollably affixed to the hull fore and aft of the inner seal member. The seal may be retracted for hullborne operation by deflating the inner seal member and scrolling the outer seal member tight to hull. The inner seal member has transverse …
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[/table]

[/td][/tr]
[tr][td=2,1]Decision-Making Process of an Antisubmarine Warfare Commander[/td][td]
SEP 86
[/td][td]
49 pages
[/td][/tr]
[tr][td=5,1]Authors: Douglas L. Robbins; NAVAL POSTGRADUATE SCHOOL MONTEREY CA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This thesis represents a study of the decision-making process of an Anti-submarine Warfare Commander (ASWC). Several real world operational issues are analyzed and discussed as to how they can influence his thought process when making decisions. One approach to model this individual’s thought process was accomplished by ALPHATECH, INC. By utilizing an ASW scenario, it evaluates how an ASWC makes his tactical decisions to track submarines based upon pieces of …
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[/table]

[/td][/tr]
[tr][td=2,1]Hazardous Chemical Discharge Prevention and Reduction[/td][td]
MAY 1984
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: R. T. Walker; COAST GUARD RESEARCH AND DEVELOPMENT CENTER GROTON CT
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This is the final report on the Coast Guard’s Hazardous Chemical Discharge Prevention and Reduction Project. The objective of this project was to investigate and develop improved techniques and hardware to prevent the discharge of hazardous chemicals from an endangered marine vessel, and to stop or reduce the discharge from a marine transport container which is already leaking. The end products of this research and development project are passed on …
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[/table]

[/td][/tr]
[tr][td=2,1]Adaptation of Crew Performance, Stress and Mood Aboard a SWATH and MONOHULL Vessel[/td][td]
16 FEB 1981
[/td][td]
86 pages
[/td][/tr]
[tr][td=5,1]Authors: Steven F. Wiker; Ross L. Pepper; COAST GUARD WASHINGTON DC OFFICE OF RESEARCH AND DEVELOPMENT [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
In the Spring of 1978, a study was conducted to measure the effects of vessel motions characteristic to a 89’ Navy Small Waterplane Area Twin Hull (SWATH) vessel, a 95’ Coast Guard Patrol Boat and a 378’ Coast Guard High Endurance Cutter upon various psychomotor and cognitive performance tasks and physiological and psychological indexes of stress. These measures were repeatedly sampled from eighteen Coast Guardsmen who were exposed to each …
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[/table]

[/td][/tr]
[tr][td=2,1]A Study of Planing Catamaran Hull and Tunnel Interactions[/td][td]
FEB 1975
[/td][td]
37 pages
[/td][/tr]
[tr][td=5,1]Authors: T. J. Sherman; Peter A. Fisher; MICHIGAN UNIV ANN ARBOR SHIP HYDRODYNAMICS LAB [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
A high speed, low displacement set of catamaran hulls has been model tested with various hull separations and tunnel heights. Symmetric, axisymmetric and unsymmetric hull forms have been tested and compared in terms of resistance to determine the interaction effects of the sponsons. A computer program for the prediction of power for prismatic planing boats has been modified to include catamarans.
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[/table]

[/td][/tr]
[tr][td=2,1]Galvanic Corrosion of Coated HY-130 Steel Coupled to 5456 Aluminum.[/td][td]
MAR 1974
[/td][td]
21 pages
[/td][/tr]
[tr][td=5,1]Authors: Harvey P. Hack; DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER ANNAPOLIS MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Specimens of HY-130 steel were galvanically coupled to 5456-H117 aluminum in natural sea water at velocities of 0 to 30 feet per second. The steel was coated with an epoxy primer and topcoat to various degrees: fully coated, coated with defect, partially coated, and uncoated. Corrosion rates of both materials increased with increasing sea-water velocity. Corrosion of the HY-130 was reduced and that of the aluminum was increased when galvanically …
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[/table]

[/td][/tr]
[tr][td=2,1]Hydrodynamic Design Requirements for the SANS Device.[/td][td]
OCT 1973
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: K. W. Watkinson; D. W. Shepherd; D. E. Humphreys; NAVAL COASTAL SYSTEMS LAB PANAMA CITY FL
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The hydrodynamic analysis of the Swimmer Acoustic Navigation System (SANS) device is presented. This analysis includes the design requirements necessary to achieve neutral buoyancy, static trim, and dynamic stability. Results of trim and ballast calculations are shown to be within 3 percent of the final measured values. The wing design necessary to achieve dynamic stability is shown to have a span of 7 inches, an area of 1.005 sq. ft., …
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[/table]

[/td][/tr]
[tr][td=2,1]Hydrodynamic Design Procedure for a Dynaplane Boat.[/td][td]
JUN 1971
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Eugene P. Clement; George B. Springston Jr.; Wilburn L. Moore; NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER WASHINGTON D C
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
A stepped planing boat which has only one half as much drag at high speed in calm water as a conventional unstepped planing boat was developed. This boat, the dynaplane, has shallow sweptback step, a cambered main lifting surface, and an adjustable stabilizer at the stern for balance, stability, and control of trim. The procedure for designing a dynaplane boat is explained. (Author)
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[/table]

[/td][/tr]
[tr][td=2,1]Engineering Design Handbook: Wheeled Amphibians.[/td][td]
11 JAN 1971
[/td][td]
425 pages
[/td][/tr]
[tr][td=5,1]Authors: ARMY MATERIEL COMMAND WASHINGTON D C [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This handbook has been prepared as an aid to engineers designing wheeled amphibians. Fundamental design information not readily attainable elsewhere is presented along with requirements and problem areas that are unique to the wheeled amphibian. Part One introduces the principal elements of the wheeled amphibian, design requirements, and a history of amphibian development. The actual design process is described in Part Two in which the amphibian evolves from …
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[/table]

[/td][/tr]
[tr][td=2,1]A Central Control Ground Locating System for Energized Shipboard Electrical Power Systems.[/td][td]
NOV 1970
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Ernest W. Fisher; NAVAL SHIP RESEARCH AND DEVELOPMENT LAB ANNAPOLIS MD
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The present method of locating grounds on normally ungrounded shipboard electrical power systems requires that branches of the circuit be switched off and on one at a time until the grounded circuit is located by observing indicator lights. Since it is vital that the power to much equipment on modern ships not be interrupted, an instrument system has been developed to obviate that requirement. It operates on the principle of …
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[/table]

[/td][/tr]
[tr][td=2,1]Investigation of Filament-Reinforced Plastic Deep-Submergence Pressure Hulls.[/td][td]
JUN 1969
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: William P. Couch; Gerald D. Ward; William F. Blumenburg; DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER BETHESDA MD
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
A large number of models employing a variety of geometric concepts and fabricated from plastic reinforced with glass, carbon, and boron fibers were tested under external hydrostatic pressure. The results were evaluated to explore the feasibility of using filament-reinforced plastics (FRP) as a structural material for the pressure hulls of deep-ocean research vehicles. A concurrent theoretical study indicated that FRP offers the greatest potential for this application at depths greater …
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[/table]

[/td][/tr]
[tr][td=2,1]DESTROYER CONCEPTUAL DESIGN STUDIES FOR DEPARTMENT OF THE NAVY OFFICE OF NAVAL RESEARCH. VOLUME II.[/td][td]
01 AUG 1968
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: MCMULLEN (JOHN J) ASSOCIATES INC NEW YORK
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Contents: Project Background and Definition; First Preliminary Design; Hull Optimization Studies; Machinery Optimization Studies; Technical Evaluation; Final Preliminary Design.
[/td][/tr]
[/table]

[/td][/tr]
[tr][td=2,1]Study of One Atmosphere Manned Underwater Structures, Volume I, Summary.[/td][td]
JUN 1968
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Homer S. Youngs; NORTH AMERICAN ROCKWELL CORP ANAHEIM CA OCEAN SYSTEMS OPERATIONS
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The study was initiated with the objective of examining the various concepts for one-atmosphere manned underwater structures in order to develop effective guidelines for use in selecting appropriate structures for a variety of missions. For the purpose of this study, structures are defined as the enclosed one-atmosphere environment in which man can operate. A structure may be a pressure hull resting on or suspended above the ocean floor, or it …
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[/table]

[/td][/tr]
[tr][td=2,1]Study of One Atmosphere Manned Underwater Structures. Volume II. Technical.[/td][td]
JUN 1968
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Homer S. Youngs; NORTH AMERICAN ROCKWELL CORP ANAHEIM CA OCEAN SYSTEMS OPERATIONS
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The Study of One-Atmosphere Manned Underwater Structures(SOAMUS) has accomplished three primary tasks: (1) identification and listing of various roles and missions which have been advanced for one-atmosphere manned underwater structures; (2) identification and assessment of structure concepts which have been developed by government agencies and industry, and which meet parameters established for the study; and (3) analyses of costs and sensitivities of structures concepts in terms of such parameters as …
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[/table]

[/td][/tr]
[tr][td=2,1]THE EFFECT OF LENGTH-BEAM RATIO AND HYDROFOIL CONTROL ON THE TAKE-OFF CHARACTERISTICS OF HYDROFOIL CRAFT IN REGULAR HEAD SEAS.[/td][td]
MAY 1968
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: P. Ward Brown; Y. H. Chey; STEVENS INST OF TECH HOBOKEN NJ DAVIDSON LAB
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
A series of three hydrofoil boats differing in length-beam ratio is studied to determine motion response and added resistance during take-off in head seas. The effect of hydrofoils is simulated mechanically. The effect of automatic incidence control of the foils is considered. Motion response is shown to vary linearly with wave height, and added resistance to vary linearly with wave slope. High length-beam ratio is shown to reduce calm-water resistance …
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[/table]

[/td][/tr]
[tr][td=2,1]USER MANUAL FOR THE FINITE ELEMENT PROGRAM OF STRUCTURAL ANALYSIS.[/td][td]
APR 1968
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Geoffrey O. Thomas; James H. Ma; DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER BETHESDA MD STRUCTU RES DEPT
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report describes the use of a computer program to perform an elastic analysis of complex structural components or their assemblage. The program is a modification of one originally developed by Professor J. R. Paulling, Department of Naval Architecture, University of California, Berkeley, California. Good engineering results can be obtained by judicious application of finite element techniques, where a real structure is idealized into discrete plate or bar elements whose …
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[/table]

[/td][/tr]
[tr][td=2,1]THE BRITISH SHIP RESEARCH ASSOCIATION.[/td][td]
12 FEB 1968
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Frederick H. Todd; OFFICE OF NAVAL RESEARCH LONDON (UNITED KINGDOM)
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The report describes the organization and work of the British Ship Research Association, as gathered during visits to the Association’s Headquarters in London and its Research Station at Wallsend-on-Tyne, Northumberland. The Association is engaged on research for the shipbuilding, shipowning and marine engineering industries, covering such fields as automation of engine rooms, hydrodynamic research into resistance and propulsion of model hulls, seaworthiness qualities, steering and maneuvering, stopping of large tankers, …
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[/table]

[/td][/tr]
[tr][td=2,1]BEHAVIOR OF SPHERICAL CONCRETE HULLS UNDER HYDROSTATIC LOADING. PART II. EFFECT OF PENETRATIONS.[/td][td]
OCT 1967
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: J. D. Stachiw; NAVAL CIVIL ENGINEERING LAB PORT HUENEME CALIF
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The objective of the study was (1) to show that concrete hulls with window and hatch penetrations for ocean bottom habitats can be built, and (2) to determine if the collapse pressure of such hulls is degraded by the incorporation of properly designed penetrations. All of the experimental work was performed on six concrete spheres (16-inch outside diameter and 14-inch inside diameter) cast from concrete with a uniaxial compressive strength …
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[/table]

[/td][/tr]
[tr][td=2,1]HULL FOULING[/td][td]
JUL 1967
[/td][td]
23 pages
[/td][/tr]
[tr][td=5,1]Authors: Richard J. Stenson; DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER BETHESDA MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report contains the results of an investigation conducted by the Naval Ship Research and Development Center (formerly David Taylor Model Basin) concerning the effects of hull fouling encountered during various full-scale trails. Measurements were made to determine the increase in powering requirements as days out of drydock increased. Data are presented for two frigates, a destroyer division, and a submarine.
[/td][/tr]
[/table]

[/td][/tr]
[tr][td=2,1]MODEL TESTS OF A STEPPED PLANING BOAT WITH AN ADJUSTABLE STERN STABILIZER.[/td][td]
MAY 1967
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Eugene P. Clement; NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER WASHINGTON D C HYDROMECHANICS LAB
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
A stepped hull is being developed which has an adjustable planing stabilizer at the stern for balance, stability, and control of trim. At high speed, this craft planes on a small area forward of the step (which is located approximately at midlength), with the stern supported by the adjustable stabilizer. Since the afterbody wetted area is eliminated at high speed, the frictional resistance, and accordingly the total drag also are …
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[/table]

[/td][/tr]
[tr][td=2,1]GREEN BOOK OF COASTAL VESSELS: SOUTH VIETNAM[/td][td]
1967
[/td][td]
336 pages
[/td][/tr]
[tr][td=5,1]Authors: BATTELLE MEMORIAL INST COLUMBUS OH COLUMBUS LABS [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The volume is intended to aid personnel who are engaged in patrol operations and in the stop-and-search activities in the coastal waters of South Vietnam. It is basically a recognition manual for the common types of wooden- hulled boats and for the intracoastal steel-hulled ships that operate there. However, interviews with patrol personnel in South Vietnam disclosed that recognition is only a small part of the patrol operation. More important …
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[/table]

[/td][/tr]
[tr][td=2,1]A REVIEW OF CURRENT AND FUTURE AMPHIBIOUS SURFACE VEHICLES. VOLUME II. HYDRODYNAMIC CONSIDERATIONS.[/td][td]
31 OCT 1966
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Roy S. Rice; Ewald F. Schroeder; CORNELL AERONAUTICAL LAB INC BUFFALO NY
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
[/td][/tr]
[/table]
[/td][/tr]
[tr][td=2,1]Report on the Acoustic Transmission and Vibration Damping Characteristics of Materials for Use on Acoustic Windows of Sonar Domes.[/td][td]
25 AUG 1966
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: NAVAL APPLIED SCIENCE LAB BROOKLYN N Y
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Although instrumentation for sonar detection has progressed to a fairly advanced stage, the presence of interference noise still remains the fundamental controlling factor in establishing sonar range and accuracy. Some of the interference noise is transmitted to the sonar transducers as a result of vibrations due to hydrodynamic or structure-borne excitations in the hull-mounted sonar dome itself. One of the methods currently used to reduce the vibrations in the AN/SQS-23 …
[/td][/tr]
[/table]

[/td][/tr]
[tr][td=2,1]FARFIELD PRESSURE OF RANDOMLY VIBRATING STRUCTURES OVER GIVEN FREQUENCY BANDS.[/td][td]
OCT 1965
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Joshua E. Greenspon; J G ENGINEERING RESEARCH ASSOCIATES BALTIMORE MD
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
A relation between the cross spectral density of the farfield pressure outside a surface surrounding a sound source is given in terms of cross spectral density of the normal acceleration over a surface surrounding the source; the cross spectral density of the acceleration is given in terms of the modes of the structure. A resulting multipole expansion for the mean square farfield pressure in low frequency bands is derived using …
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[/table]

[/td][/tr]
[tr][td=2,1]POROUS MATERIAL DEVELOPMENT FOR BOUNDARY LAYER CONTROL,[/td][td]
22 DEC 1964
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: G. May; W. B. Giles; GENERAL ELECTRIC CO SCHENECTADY NY ADVANCED TECHNOLOGY LABS
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
A description is presented of the development of a new porous material that was undertaken specifically for the application of area suction boundary layer control to underwater vehicles. This material was subsequently used in the manufacture of several hydrodynamic test models varying in size from 2 in. to 12 3/4 in. O.D. The small models have been tested and reported to show boundary layer stabilization and the larger models are …
[/td][/tr]
[/table]

[/td][/tr]
[tr][td=2,1]Development of Rubber-Plastic Composites for Sonar Domes.[/td][td]
17 JUN 1964
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: NAVAL APPLIED SCIENCE LAB BROOKLYN N Y
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The U. S. Naval Applied Science Laboratory is developing and exploring rubber enclosed, heat and pressure cured and bonded laminated rubber-plastic composites as possible structural materials for various structural applications such as hull-mounted sonar dome windows, windows of VDS fish bodies, and sonar baffles. Physical properties studied to data have indicated, as expected that the structural properties of the composites are largely determined by the structural properties of the rigid …
[/td][/tr]
[/table]

[/td][/tr]
[tr][td=2,1]DEVELOPMENT OF HY 180/210 MARAGING STEEL FILLER METALS AND JOINING PROCEDURES. PART I.[/td][td]
12 MAY 1964
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: W. A. Fragetta; K. F. Krysiak; K. E. Dorschu; UNITED STATES STEEL CORP MONROEVILLE PA
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report reviews the current status of the program to explore the effectiveness of various compositions of maraging steel filler metals and joining procedures for achieving tough weldments having a yield strength between 180 and 210 ksi. The status of two development activities are covered: (1) improved MIG filler metals and (2) improved joining techniques. These studies have included the evaluation of 18% Ni-Co-Mo and 12% Ni-Cr-Mo maraging steels. In …
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[tr][td=2,1]STRUCTURAL DESIGN OF VIEWING PORTS FOR OCEANOGRAPHIC VEHICLES[/td][td]
MAR 1963
[/td][td]
27 pages
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[tr][td=5,1]Authors: James A. Nott; DAVID TAYLOR MODEL BASIN WASHINGTON DC [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
A design procedure for the reinforcement of viewing port openings in spherical shells for deep-diving oceanographic vehicles is presented. This procedure is based on the concepts of membrane deflection and zero rotation of the spherical head to the viewing port intersection. A small model was tested to determine the validity of the developed procedure. Strain measurements indicated that no appreciable bending occurred and that the structure reacted in a highly …
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[tr][td=2,1]JUNK BLUE BOOK. A HANDBOOK OF JUNKS OF SOUTH VIETNAM (HAI THUYEN THANH THU. QUYEN SACH VE HAI-THUYEN XU-DUNG TRONG MIEN NAM VIETNAM)[/td][td]
06 AUG 1962
[/td][td]
423 pages
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[tr][td=5,1]Authors: COMBAT DEVELOPMENT AND TEST CENTER (VIETNAM) [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The Junk Blue Book is a compilation of processed field data recently collected on South Vietnamese junks. It is believed to be the first document of its type prepared since 1949 when Voiliers d’Indochine was published in Saigon. That book has become largely obsolete because of the sweeping changes that have occurred in the Vietnamese maritime scene since the end of World War II. A large part of the 800 …
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[tr][td=2,1]CONCEPT STUDY FOR A TRACKED AMPHIBIAN PERSONNEL AND CARGO CARRIER (LVTPX11) VOLUME I.[/td][td]
15 NOV 1961
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: FOOD MACHINERY AND CHEMICAL CORP SAN JOSE CALIF
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
Contents: Technical report – General, Maximum armored vehicle, Maximum water performance vehicle, Development areas, Performance, Hull, Machinery, Suspension, Water propulsion, Controls, Subsystems, Stability and trim Transportability, and Vehicle family.
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[tr][td=2,1]TRACKED AMPHIBIAN PERSONNEL AND CARGO CARRIER. PROPOSED AS MARINE ASSAULT CARRIER (MAC), VOLUME I.[/td][td]
15 NOV 1961
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[/td][/tr]
[tr][td=5,1]Authors: INGERSOLL KALAMAZOO DIV BORG-WARNER CORP
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
Contents: Design philosophy; Performance analysis; Hull; and Power train.
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[tr][td=2,1]TRACKED AMPHIBIAN PERSONNEL AND CARGO CARRIER.[/td][td]
02 NOV 1961
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[tr][td=5,1]Authors: CHRYSLER CORP DETROIT MICH
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
While the requirement to produce a vehicle concept of not more than 35,000 pounds gross weight has been given maximum attention, the mission requirements of the vehicle have been kept in mind, particularly with regard to armor protection. It is our opinion that in order to provide the Bureau of Ships and the Marine Corps a vehicle having an acceptable degree of armor protection, a 40,000 pound configuration might offer …
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[tr][td=2,1]DEVELOPMENT CHARACTERISTICS FOR TRACKED AMPHIBIAN PERSONNEL AND CARGO CARRIER BY HYDRONAUTICS, INC. (SUPPLEMENTAL INFORMATION).[/td][td]
NOV 1961
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[tr][td=5,1]Authors: PACIFIC CAR AND FOUNDRY CO RENTON WASH
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
Investigations were directed toward reducing the hull resistance, and increasing the propulsive efficiency of propelling means of a generalized, barge-form, track-laying vehicle, with a minimum of restrictive conditions placed on their method of attaining the ends. When compared with the basic model, the bow change reduced the resistance at 7 MPH by 50%, while the modified 5 foot transom stern alone gave a 25% reduction. Other changes such as the …
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[tr][td=2,1]DEVELOPMENT AND MODEL TESTS OF AN EFFICIENT PLANING HULL DESIGN,[/td][td]
APR 1959
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[/td][/tr]
[tr][td=5,1]Authors: Eugene P. Clement; DAVID TAYLOR MODEL BASIN WASHINGTON D C
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
A hull form for a stepless planing boat was designed, based upon an analysis of the results of resistance tests of a number of previous designs, and also taking into consideration the features desirable for good steering qualities and good rough-water performance. A model was built and tested, and the results were compared with the resistance data from designs which had been previously tested at the Model Basin. This comparison …
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[tr][td=2,1]THE TABULATION OF MICHELL’S FUNCTION,[/td][td]
APR 1958
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[tr][td=5,1]Authors: Garrett Birkhoff; Rohit Parikh; HARVARD UNIV CAMBRIDGE MA
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
[/td][/tr]
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[tr][td=2,1]SHIPBOARD CRANES AND BURTONING GEAR. EVALUATION OF CARGO HANDLING EQUIPENT IN THE LIBERTY SHIP MODERNIZATION PROGRAM.[/td][td]
JAN 1957
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[/td][/tr]
[tr][td=5,1]Authors: NATIONAL ACADEMY OF SCIENCES - NATIONAL RESEARCH COUNCIL WASHINGTON D C
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[tr][td=6,1][table=98%]
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[tr][td=2,1]LETHAL RANGE OF WIGWAM TARGETS BASED ON HULL RESPONSE AND APPLIED PRESSURE MEASUREMENTS,[/td][td]
JUN 1956
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[/td][/tr]
[tr][td=5,1]Authors: G. Chertock; A. E. Hirsch; R. W. Mayo; T. F. Ogilvie; DAVID TAYLOR MODEL BASIN WASHINGTON DC
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
The external pressures applied to the three SQUAW targets in Operation Wigwam were measured with pressure gages, and the deformations of the hull were measured with strain and displacement gages. The results indicate that SQUAW-12 was at a horizontal range of 5150 ft and a depth of 290 ft; the peak shock pressure at the hull was about 850 psi and the target destroyed, probably within 10 msec. SQUAW-13 was …
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[tr][td=2,1]DYNAMIC LOADING OF A MOTOR TORPEDO BOAT (YP 110) DURING HIGH-SPEED OPERATION IN ROUGH WATER,[/td][td]
SEP 1949
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Norman H. Jasper; DAVID TAYLOR MODEL BASIN WASHINGTON DC
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
Pressures and strains were measured on the hull of a motor torpedo boat (YP110, Ex PT8) during rough-water operation in order to establish design criteria for hull plating and local structure. The most severe loading due to wave forces occurred between the forward quarterpoint and the midship section. The highest maximum effective pressure for this boat was 36 psi. In order to determine the effective pressures the solution is given …
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[tr][td=2,1]Tests of Twenty Related Models of V-Bottom Motor Boats. E. M. B. Series 50 for the David Taylor Model Basin,[/td][td]
MAR 1949
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: STEVENS INST OF TECH HOBOKEN NJ EXPERIMENTAL TOWING TANK
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[tr][td=6,1][table=98%]
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[tr][td=2,1]OPERATION CROSSROADS. U.S.S. BARROW (APA61). TEST ABLE[/td][td]
1946
[/td][td]
50 pages
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[tr][td=5,1]Authors: JOINT TASK FORCE ONE WASHINGTON DC [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
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[tr][td=2,1]OPERATION CROSSROADS. U.S.S. BLADEN (APA63). TEST ABLE[/td][td]
1946
[/td][td]
39 pages
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[tr][td=5,1]Authors: JOINT TASK FORCE ONE WASHINGTON DC [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
[/td][/tr]
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[tr][td=2,1]OPERATION CROSSROADS. U.S.S. LST 545 TEST ABLE[/td][td]
1946
[/td][td]
27 pages
[/td][/tr]
[tr][td=5,1]Authors: JOINT TASK FORCE ONE WASHINGTON DC [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
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[tr][td]
[table=98%]
[tr][td=15%]Total Results: 52
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Pages: Previous [1] 2 Next
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[table=98%]
[tr][td]
[table=98%]
[tr][td=15%]Total Results: 8288
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Pages: Previous [1] 2 3 4 5 6 7 8 9 10 11 Next
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Results per page:
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[tr][td][table]
[tr][td]Sort by:[/td][td=80]Title[/td][td=80]Date [/td][td=80]Pages[/td][td=60]Display:[/td][td=150]
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[tr][td][table=98%]
[tr][td=2,1]Methodology Report for H2SModel
[/td][td]
Jan 2012
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31 pages
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[tr][td=5,1]Authors: D Oldson; D Crary; B Asgharian; S Watson; G McClellan; APPLIED RESEARCH ASSOCIATES INC ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Hydrogen sulfide is similar in pathophysiology to cyanide in that it binds to mitochondrial cytochrome oxidase. By blocking oxidative respiration at the cellular level its effects are most evident in tissues with high metabolic demand such as the central nervous system, cardiovascular, and respiratory systems. The onset of signs and symptoms is rapid. Hydrogen sulfide also has local irritant effects, particularly upon the nose and membranes of the upper respiratory …
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[tr][td=2,1]Accession Medical Standards Analysis & Research Activity (AMSARA) 2011 Annual Report[/td][td]
Jan 2012
[/td][td]
118 pages
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[tr][td=5,1]Authors: David W Niebuhr; Marlene E Gubata; David N Cowan; Caitlin Blandforn; Mikayla Chubb; Xiaoshu Feng; Janice K Gary; Alexis Oetting; Elizabeth Packnett; Amanda Piccirillo; Nadia Urban; Bin Yi; WALTER REED ARMY INST OF RESEARCH SILVER SPRING MD DIV OF PREVENTIVE MEDICINE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Accession Medical Standards Analysis & Research Activity (AMSARA), mission is to support the development of evidence based medical accession standards for the Department of Defense (DoD) contained in DoD Instruction 6130.4, Medical Standards for Appointment, Enlistment, or Induction in the Armed Forces by guiding improvement of medical and administrative databases and conducting epidemiologic and special studies analyses. Special studies presented in this annual report include analyses of accession medical disqualifications, …
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[tr][td=2,1]Report to Congress on Gravesite Accountability Study Findings[/td][td]
22 Dec 2011
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54 pages
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[tr][td=5,1]Authors: DEPARTMENT OF THE ARMY WASHINGTON DC [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Since Secretary of the Army John M. McHugh issued Army Directive 2010-04 on 10 June 2010, the United States Army has instituted comprehensive reforms in the management and oversight of its National Cemeteries Program, putting in place sweeping corrective actions to restore confidence and regain accountability at Arlington National Cemetery (ANC or Cemetery. Secretary McHugh’s directive followed completion of three separate Army investigations, each more comprehensive in scope. These efforts …
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[tr][td=2,1]Verification and Validation of the Coastal Modeling System. Report 2: CMS-Wave[/td][td]
Dec 2011
[/td][td]
112 pages
[/td][/tr]
[tr][td=5,1]Authors: Lihwa Lin; Zeki Demirbilek; Rob Thomas; III Rosati James; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICS LAB [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
There are four reports documenting the Verification and Validation (V&V) of the Coastal Modeling System (CMS): an executive summary, waves, circulation, and sediment transport/morphodynamics, respectively. This is the second technical report (Report 2) that describes the wave modeling component of the V&V study. The goal of the report was to critically assess both general and special predictive skills of CMS-Wave, a spectral wave model in the CMS developed to address …
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[tr][td=2,1]Department of Defense Annual Report on Sexual Harassment and Violence at the Military Service Academies Academic Program Year 2010-2011[/td][td]
Dec 2011
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121 pages
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[tr][td=5,1]Authors: DEPARTMENT OF DEFENSE WASHINGTON DC [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Section 532 of Public Law Number 109-364, the John Warner National Defense Authorization Act for Fiscal Year 2007, requires an assessment at the Military Service Academies (MSA) during each Academic Program Year (APY). This assessment is to determine the effectiveness of the policies, training, and procedures of the academy with respect to sexual harassment and assault involving academy personnel. In APYs beginning in even-numbered years (e.g., APY 10-11), the Report …
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[tr][td=2,1]Development of Scoring Procedures for the Performance Based Measurement (PBM) Test: Psychometric and Criterion Validity Investigation[/td][td]
29 Nov 2011
[/td][td]
146 pages
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[tr][td=5,1]Authors: J B Phillips; O S Chernyshenko; S Stark; F Drasgow; IV Phillips H L; NAVAL MEDICAL RESEARCH UNIT DAYTON WRIGHT-PATTERSON AFB OH [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report describes findings regarding the scoring of the PBM Test and the relationships of various classical test theory (CTT) and item response theory (IRT) based subtest scores and composites with performance criteria for Navy and Marine Corps student pilots and flight officers. Overall, the IRT analyses indicated that the three parameter logistic model (3PLM) and Samejima’s graded response model (SGRM) provided good fit to dichotomously and polytomously scored item-level …
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[tr][td=2,1]Integrated Warfighter Biodefense Program (IWBP) - Next Phase[/td][td]
10 Nov 2011
[/td][td]
36 pages
[/td][/tr]
[tr][td=5,1]Authors: Franklin T Abbott; Ganesh Vaidyanathan; QUANTUM LEAP INNOVATIONS INC NEWARK DE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The aim of the Integrated Warfighter Biodefense Program (IWBP) is to develop innovative technology that can be deployed to prevent U.S. armed forces from becoming battle or non-battle casualties, and especially to reduce morbidity and mortality throughout the increasingly complex battlespace of current operations. In this summary of the next phase of work on IWBP we report the continued development of novel software that provides a simulation environment for modeling …
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[tr][td=2,1]U.S. Naval Academy Officials Did Not Adhere to Contracting and Gift Policies[/td][td]
07 Nov 2011
[/td][td]
61 pages
[/td][/tr]
[tr][td=5,1]Authors: Patricia A Marsh; INSPECTOR GENERAL DEPT OF DEFENSE ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
We determined whether the U.S. Naval Academy (USNA) and its supporting organizations were properly disbursing, recording, accepting, and reporting donations, gifts, and nonappropriated funds (NAPs). From January 1 through December 31, 2010, USNA received 381 monetary gifts, totaling $5.7 million, and 153 in-kind gift donations, valued at $25.1 million. USNA officials did not have adequate processes for disbursing, recording, accepting, and reporting gifts and NAPs. Specifically, the Naval Academy Business …
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[tr][td=2,1]Know the Star, Know the Planet. 2. Speckle Interferometry of Exoplanet Host Stars[/td][td]
Nov 2011
[/td][td]
7 pages
[/td][/tr]
[tr][td=5,1]Authors: Brian D Mason; William I Hartkopf; Deepak Raghavan; John P Subasavage; Jr Roberts Lewis C; Nils H Turner; Theo A ten Brummelaar; NAVAL OBSERVATORY WASHINGTON DC [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
A study of the host stars to exoplanets is important for understanding their environment. To that end, we report new speckle observations of a sample of exoplanet host primaries. The bright exoplanet host HD 8673 (= HIP 6702) is revealed to have a companion, although at this time we cannot definitively establish the companion as physical or optical. The observing lists for planet searches and for these observations have for …
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[tr][td=2,1]Criterion-Related Validity of Non-Cognitive Screening Measures among Soldiers with Enlistment Waivers[/td][td]
Nov 2011
[/td][td]
74 pages
[/td][/tr]
[tr][td=5,1]Authors: Matthew S Fleisher; Dan J Putka; J D Dressel; HUMAN RESOURCES RESEARCH ORGANIZATION ALEXANDRIA VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report examines the criterion-related validity of the U.S. Army Research Institute for the Behavioral and Social Sciences’(ARI’s) on-cognitive measures for predicting various types of performance, attitudinal, and retention criteria for Soldiers who required waivers for entry. We conducted analyses to evaluate the prediction provided by each instrument in isolation, as well as additional prediction beyond that provided by the Armed Forces Qualification Test, or AFQT-he primary cognitive measure used …
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[tr][td=2,1]Os Odontoideum: Rare Cervical Lesion[/td][td]
Nov 2011
[/td][td]
6 pages
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[tr][td=5,1]Authors: Kristie A Robson; NAVAL MEDICAL CENTER PORTSMOUTH VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
We report the case of a 22-year-old Marine who presented to the emergency department, after a martial arts exercise, with transient weakness and numbness in all extremities. Computed tomography cervical spine radiographs revealed os odontoideum. Lateral flexion extension radiographs identified atlanto-axillary instability. This abnormality is rare and can be career ending for military members who do not undergo surgical fusion.
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[tr][td=2,1]Prioritization and Sensitivity Analysis of the Inhalation/Ocular Hazard of Industrial Chemicals[/td][td]
28 Oct 2011
[/td][td]
147 pages
[/td][/tr]
[tr][td=5,1]Authors: Thomas E Sutto; NAVAL RESEARCH LAB WASHINGTON DC MATERIALS SCIENCE AND TECHNOLOGY DIV [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report has been prepared for the Joint Project Manager for Protection (JPM-P) to document the prioritization and sensitivity analysis of the potential inhalation and ocular hazard of industrial chemicals.
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[tr][td=2,1]Using Impact Modulation to Identify Loose Bolts on a Satellite[/td][td]
21 Oct 2011
[/td][td]
140 pages
[/td][/tr]
[tr][td=5,1]Authors: Janette Jaques; Doug Adams; PURDUE UNIV LAFAYETTE IN [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report investigates the use of Impact Modulation (IM) as a means for detecting loose bolts in a satellite structure. First, a two-beam, one-bolt assembly is studied to establish guidelines for implementing IM. Then, theoretical models are developed to provide a basis for applying IM to bolted joints. Two analysis methods for identifying loose bolts within a structure are then proposed. These methods are demonstrated on a three-beam, two-bolt structure; …
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[tr][td=2,1]Military Training: DOD’s Report on the Sustainability of Training Ranges Meets Annual Reporting Requirements but Could Be Improved[/td][td]
19 Oct 2011
[/td][td]
34 pages
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[tr][td=5,1]Authors: GOVERNMENT ACCOUNTABILITY OFFICE WASHINGTON DC [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Realistic training ranges are one of the most valued assets the military has in preparing its personnel for their missions. Realistic training requires access to areas and environments that closely match the locations where the military may face combat or complex situations. International events, changes in strategy, force structure, base closures, and population growth are increasing the challenges the military faces in training its personnel to be prepared to defend …
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[tr][td=2,1]Scalable Heterogeneous Multiagent Teams Through Learning Policy Geometry[/td][td]
Oct 2011
[/td][td]
7 pages
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[tr][td=5,1]Authors: Kenneth O Stanley; UNIVERSITY OF CENTRAL FLORIDA ORLANDO [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This document is the final technical report for Phase II of the DARPA Computer Science Study Group (CSSG) program started by the PI in the year 2008. (Phase II itself began for the PI in 2009.) It follows the reporting requirements specified in the award document for the project.
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[tr][td=2,1]Toward the Development of a Canadian Less Lethal Weapon Approval Process: A Study of Contemporary Process Models[/td][td]
Oct 2011
[/td][td]
72 pages
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[tr][td=5,1]Authors: Len Goodman; Donna Wood; DEFENCE RESEARCH AND DEVELOPMENT CANADA OTTAWA (ONTARIO) CENTRE FOR SECURITY SCIENCE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
One of the objectives of the Conducted Energy Weapons Strategic Initiative (CEWSI) project is to develop a Canadian approval process that could be applied to emerging less lethal technologies. A contract was let with Alcea Technologies to survey a variety of approval processes with the objective of identifying common elements that could be applied to the Canadian less lethal weapons approval process. The contractor identified the stakeholders, roles and responsibilities, …
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[tr][td=2,1]The Resonantly Diode Pumped, Cryogenic Ho3+:YVO4 2.05-Micrometers Laser[/td][td]
Oct 2011
[/td][td]
12 pages
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[tr][td=5,1]Authors: George A Newburgh; Mark Dubinskii; ARMY RESEARCH LAB ADELPHI MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
We report what is believed to be the first laser operation based on Ho(3+)-doped yttrium orthovanadate (YVO(4)). The cryogenic (77 K) Ho(+3):YVO(4) was resonantly diode-pumped at approximately 1.93 microns to produce up to 1.6 W of continuous wave (CW) output power at approximately 2.054 microns. The laser had a slope efficiency of approximately 38% with respect to absorbed power. We have measured the absorption and stimulated emission cross sections of …
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[tr][td=2,1]Low Velocity Sphere Impact of a Soda Lime Silicate Glass[/td][td]
Oct 2011
[/td][td]
39 pages
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[tr][td=5,1]Authors: A A Wereszczak; E E Fox; T G Morrissey; D J Vuono; OAK RIDGE NATIONAL LAB TN [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report summarizes TARDEC-sponsored work at Oak Ridge National Laboratory (ORNL) during the FY11 involving low velocity ( 30 m/s or 65 mph) ball impact testing of Starphire soda lime silicate glass. The intent was to better understand low velocity impact response in the Starphire for sphere densities that bracketed that of rock. Five sphere materials were used: borosilicate glass, soda-lime silicate glass, steel, silicon nitride, and alumina. A …
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[tr][td=2,1]Sensory Coordination of Insect Flight[/td][td]
30 Sep 2011
[/td][td]
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[tr][td=5,1]Authors: Sanjay Sane; TATA INST OF FUNDAMENTAL RESEARCH BANGALORE (INDIA) NATIONAL CENTRE FOR BIOLOGICAL SCIENCES
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
This is the final report of a project that studied antennal positioning in moths and freely flying bees, location of odor sources in the fruit fly, coordination of wings and halters in the soldier fly, and landing behavior in the housefly.
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[tr][td=2,1]Independent Auditor’s Report on the Agreed-Upon Procedures for Reviewing the FY 20II Civilian Payroll Withholding Data and Enrollment Information[/td][td]
30 Sep 2011
[/td][td]
21 pages
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[tr][td=5,1]Authors: INSPECTOR GENERAL DEPT OF DEFENSE ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
For employee benefit withholding and contributions, obtain the Agency Payroll Provider s September 2010 and March 2011 Semiannual Headcount Report submitted to OPM and a summary of Retirement and Insurance Transfer System (RITS) submissions for September 2010 and the current fiscal year. For each program (retirement, health, and life), select a total of three RITS submissions for September 2010 and the current fiscal year; two will coincide with the September …
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[tr][td=2,1]Summary of Information Assurance Weaknesses as Reported by Audit Reports Issued from August 1, 2010, through July 31, 2011[/td][td]
30 Sep 2011
[/td][td]
38 pages
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[tr][td=5,1]Authors: INSPECTOR GENERAL DEPT OF DEFENSE ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The purpose of this report is to provide a reference document that identifies all audit reports that contained findings outlining information assurance weaknesses in DoD. The overall objective was to summarize the information assurance (IA) weaknesses identified in reports and testimonies issued by the DoD audit community and the Government Accountability Office (GAO) between August 1, 2010, and July 31, 2011. This summary report supports the Department of Defense Office …
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[tr][td=2,1]Acoustic Seaglider (trademark) for Beaked Whale Detection[/td][td]
30 Sep 2011
[/td][td]
21 pages
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[tr][td=5,1]Authors: Neil M Bogue; James C Luby; WASHINGTON UNIV SEATTLE APPLIED PHYSICS LAB [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This is the final report on the Office of Naval Research (ONR) -sponsored program entitled Acoustic Seaglider(trademark) for Beaked Whale Detection. This research at the Applied Physics Laboratory of the University of Washington (APL-UW) was part of the ONR Passive Autonomous Acoustic Monitoring (PAAM) of marine mammals program. Research was focused on development and operation of a passive acoustic system for the buoyancy-driven autonomous underwater vehicle Seaglider, capable of autonomous …
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[tr][td=2,1]DOD Financial Management: Improved Controls, Processes, and Systems Are Needed for Accurate and Reliable Financial Information[/td][td]
23 Sep 2011
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28 pages
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[tr][td=5,1]Authors: Asif A Khan; J C Martin; F A Dymond; Gayle Fischer; Greg Pugnetti; Darby Smith; Beatrice Alff; Steve Donahue; Keith McDaniel; Maxine Hattery; Hal Santarelli; Sandy Silzer; GOVERNMENT ACCOUNTABILITY OFFICE WASHINGTON DC [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The department is facing near and long-term internal fiscal pressures as it attempts to balance competing demands to support ongoing operations, rebuild readiness following extended military operations, and manage increasing personnel and health care costs as well as significant cost growth in its weapon systems programs. For more than a decade, DOD has dominated GAO s list of federal programs and operations at high risk of being vulnerable to fraud, …
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[tr][td=2,1]Competition for Interrogation Arm Contracts Needs Improvement[/td][td]
19 Sep 2011
[/td][td]
45 pages
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[tr][td=5,1]Authors: INSPECTOR GENERAL DEPT OF DEFENSE ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report is the second in a series of reports addressing DoD contracts for countermine and improvised explosive device (IED) defeat systems used in Iraq and Afghanistan. The overall audit objective was to determine whether DoD procurement efforts for countermine and improvised explosive device defeat systems used in Iraq and Afghanistan were developed, awarded, and managed in accordance with Federal and Defense acquisition regulations. Specifically, we determined whether the Joint …
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[tr][td=2,1]Shadowcopy: A Python-Based Shadow Volume Enumeration and Digest Tool[/td][td]
12 Sep 2011
[/td][td]
23 pages
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[tr][td=5,1]Authors: Mike Horn; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF COMPUTER SCIENCE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report presents shadowcopy, tool written in Python that extracts and deduplicates files from Microsoft NTFS Shadow copies using the Microsoft Volume Shadow Service (VSS), copies the files to an external volume, and prepares a report of each extracted file’s name, timestamp, original path, and MD5 hash value
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[tr][td=2,1]Pricing and Escalation Issues Weaken the Effectiveness of the Army Contract With Sikorsky to Support the Corpus Christi Army Depot[/td][td]
08 Sep 2011
[/td][td]
85 pages
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[tr][td=5,1]Authors: INSPECTOR GENERAL DEPT OF DEFENSE ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The overall objective of the audit was to evaluate material purchases made at Corpus Christi Army Depot (CCAD) through the partnership agreement with Sikorsky Aircraft Corporation (Sikorsky). Specifically, we determined whether the partnership agreement with Sikorsky effectively minimized the cost of direct materials to the depot. See Appendix A for a discussion of the scope and methodology and prior coverage. This report is one of two reports examining the Army …
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[tr][td=2,1]Iraq and Afghanistan: DOD, State, and USAID Cannot Fully Account for Contracts, Assistance Instruments, and Associated Personnel[/td][td]
Sep 2011
[/td][td]
33 pages
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[tr][td=5,1]Authors: John P Hutton; Johana R Ayers; E B Booth; Virginia Chanley; Julia Kennon; Gilbert Kim; Angie Nichols-Friedman; Anne McDonough-Hughes; Margaret McKenna; Robert Swierczek; GOVERNMENT ACCOUNTABILITY OFFICE WASHINGTON DC [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
DoD, State, and USAID have relied extensively on contracts and assistance instruments (grants and cooperative agreements) for a range of services in Iraq and Afghanistan. In the last 3 years, GAO has provided information on the agencies’ contracts, assistance instruments, and associated personnel in the two countries, detailing the agencies’ challenges tracking such information. Amendments from the National Defense Authorization Act for Fiscal Year 2011 now require the agencies to …
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[tr][td=2,1]Mosquitoes of Guam and the Northern Marianas: Distribution, Checklists, and Notes on Mosquito-Borne Pathogens[/td][td]
Sep 2011
[/td][td]
13 pages
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[tr][td=5,1]Authors: Leopoldo M Rueda; James E Pecor; Will K Reeves; Stephen P Wolf; Peter V Nunn; Rosanna Y Rabago; Teresa L Gutierrez; Mustapha Debboun; WALTER REED ARMY INST OF RESEARCH SILVER SPRING MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report includes the distribution records and updated checklists of the mosquitoes known to occur in Guam and nearby selected islands (ie, Saipan, Tin ian, Rota), based on our field collections from various localities during 20 I 0 published reports, and accessioned specimens deposited in the US National Museum of Natural History, Smithsonian lnstirution, Washington, DC. The starus of common and potential mosquito vectors and their borne-pathogens are also noted. …
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[tr][td=2,1]Army Acquisition and Contracting Personnel Requirements: How are the Army’s Current Recruitment, Development and Retention Programs Meeting Current and Future Personnel Requirements?[/td][td]
Sep 2011
[/td][td]
164 pages
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[tr][td=5,1]Authors: Karen E Allen; James W Doran; Bonnie L Westbrook; NAVAL POSTGRADUATE SCHOOL MONTEREY CA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The Department of Defense (DoD) is realizing a current and expected future shortage in experienced acquisition and contracting personnel due, in part, to a hiring freeze in the middle 1990s and the number of personnel that are eligible to retire in the next five years. This Joint Applied Project (JAP) will focus on the Army’s current acquisition and contracting personnel recruitment programs, personnel development programs and personnel retention programs within …
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[tr][td=2,1]Developing Information Storage and Retrieval Systems on the Internet: A Knowledge Management Approach[/td][td]
Sep 2011
[/td][td]
91 pages
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[tr][td=5,1]Authors: Charles A Fulmer; NAVAL POSTGRADUATE SCHOOL MONTEREY CA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Search is becoming the primary way in which people get information. In 2010, global Internet usage was over two billion people, with 92% of online adults using search engines to find information. Most commercial search engines (Google, Yahoo, Bing, etc.) provide their indexing and search services at no cost. The DoD can achieve large gains at a small cost by making public documents available to search engines. This can be …
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[tr][td=2,1]EELV Secondary Payload Adapter (ESPA) Ring: Overcoming Challenges to Enable Responsive Space[/td][td]
Sep 2011
[/td][td]
95 pages
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[tr][td=5,1]Authors: Robert M Atkins; NAVAL POSTGRADUATE SCHOOL MONTEREY CA SPACE SYSTEMS ACADEMIC GROUP [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Technology advancement is a primary goal for military space development. By staying ahead of the competition, space systems can offer unique battlefield capabilities. A number of space programs are increasingly behind schedule, over budget, and underperforming. This thesis explains the benefits the Evolved Expendable Launch Vehicle (EELV) Secondary Payload Adapter (ESPA) ring can offer programs experiencing technical immaturity or desiring responsive space. By understanding and adhering to the ESPA Rideshare …
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[/table]

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[tr][td=2,1]Integration of Sustainment Management Systems (SMS) with the Army Installation Status Report for Infrastructure (ISR-I)[/td][td]
Sep 2011
[/td][td]
43 pages
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[tr][td=5,1]Authors: Michael N Grussing; Kelly M Dilks; Matthew C Walters; ENGINEER RESEARCH AND DEVELOPMENT CENTER CHAMPAIGN IL CONSTRUCTION ENGINEERING RESEARCH LAB [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report describes the process for integrating the BUILDER Sustainment Management System (SMS) with the US Army Installation Status Report for Infrastructure (ISR-I). A common building component and assessment data framework between SMS and ISR-I was developed to link local facility condition and functional requirements managed through the BUILDER Sustainment Management System (SMS) to enterprise-level quality and mission metrics reported in the ISR-I. To accomplish this, the applicable facility components …
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[tr][td=2,1]Multiscale Modeling of Armor Ceramics: Focus on AlON[/td][td]
Sep 2011
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16 pages
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[tr][td=5,1]Authors: G A Gazonas; J W McCauley; I G Batyrev; D Casem; J D Clayton; D P Dandekar; R Kraft; B M Love; B M Rice; B E Schuster; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The computational modeling linkage from the atomistic to the continuum scales of homogeneous and discrete deformation mechanisms (twinning, cleavage, micro-cracking, stacking faults, et cetera), nano- and microstructure and defects, to dynamic failure processes in brittle materials should provide pathways to designing improved mechanical performance through controlled processing. This report will review results from an internal multiscale computational program in first-principles design of armor ceramics, with a focus on an optically …
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[tr][td=2,1]A Randomized Phase 2 Trial of 177Lu Radiolabeled Anti-PSMA Monoclonal Antibody J591 in Patients with High-Risk Castrate Biochemically Relapsed Prostate Cancer[/td][td]
Sep 2011
[/td][td]
16 pages
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[tr][td=5,1]Authors: Scott T Tagawa; CORNELL UNIV MEDICAL COLL (WEILL) NEW YORK [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Clinical trial has received WCMC IRB and CTSC approval with enrollment of initial 3 subjects at WCMC. An additional 12 subjects enrolled (7 treated) at participating sub-sites. Reports submitted to WCMC DSMB with recommendation to proceed with enrollment.
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[/table]

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[tr][td=2,1]Yttria Nanoparticle Reinforced Commercially Pure (CP) Titanium[/td][td]
Sep 2011
[/td][td]
20 pages
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[tr][td=5,1]Authors: Sesh Tamirisa; FMW COMPOSITE SYSTEMS INC BRIDGEPORT WV [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Previous literature reports have indicated as much as an approximate two-fold increase in tensile properties in commercially pure (CP) titanium (Ti) following the introduction of yttria (Y2O3) nanoparticles. However, these initial studies used laboratory-scale samples produced via an arc-melting process. In order to evaluate the potential for scale-up, CP Ti powders containing both yttria nanoparticles as well as titanium boride (TiB) reinforcements were produced through gas atomization. After consolidation and …
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[/td][/tr]
[tr][td=2,1]Sky Glow from Cities: The Army Illumination Model v2[/td][td]
Sep 2011
[/td][td]
48 pages
[/td][/tr]
[tr][td=5,1]Authors: Richard C Shirkey; ARMY RESEARCH LAB WHITE SANDS MISSILE RANGE NM [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The increasing number of people living on earth and the corresponding increase in outdoor lighting has resulted in light pollution a brightening night sky that has obliterated the stars for much of the world s population. However, for military purposes, in particular Night Vision Goggle (NVG) users, this light can allow for detection of targets that might ordinarily not be seen. The amount of light scattered from an urban location …
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[/td][/tr]
[tr][td=2,1]Experiments in Cold Atom Optics at ARL I: Introduction to Atom Chip Set-up[/td][td]
Sep 2011
[/td][td]
28 pages
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[tr][td=5,1]Authors: Jason Alexander; Christopher Rowlett; Violeta Prieto; William Golding; Patricia Lee; ARMY RESEARCH LAB ADELPHI MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Gyroscopes based on ultracold atom interferometry have the potential to exhibit an intrinsic sensitivity larger by a factor of 4 x 1010 than for light-based interferometers. One of the major technical challenges for the advancement of atom optics and development of practical guided matter wave interferometers is the realization of coherent beam splitters. The overall focus of our research program is to develop a physical understanding of the conditions needed …
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[/table]

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[tr][td=2,1]The Line Operations Safety Audit Program: Transitioning From Flight Operations to Maintenance and Ramp Operations[/td][td]
Sep 2011
[/td][td]
20 pages
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[tr][td=5,1]Authors: Jiao Ma; Mark Pedigo; Lauren Blackwell; Kevin Gildea; Kali Holcomb; Carla Hackworth; John J Hiles; FEDERAL AVIATION ADMINISTRATION OKLAHOMA CITY OK CIVIL AEROSPACE MEDICAL INST [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Managing risk has become increasingly important in modern organizations, including medicine, aviation, and finance. Accident investigation concentrates on failures, which are important for discovering major breakdowns, but failures are rare events. Proactive approaches offer the flexibility of observing normal operations A Line Operations Safety Audit (LOSA) is a voluntary safety program that collects safety data during normal airline operations and was originally designed for flight deck operations. The goal of …
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[tr][td=2,1]Using a Volume Bragg Grating Instead of a Faraday Isolator in Lasers Incorporating Stimulated Brillouin Scattering Wavefront Reversal or Beam Cleanup[/td][td]
29 Aug 2011
[/td][td]
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[tr][td=5,1]Authors: John E McElhenny; Jeffrey O White; Steven D Rogers; Tigran Sanamyan; Leonid B Glebov; Oleksiy Mokhun; Vadim I Smirnov; ARMY RESEARCH LAB ADELPHI MD
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
A master-oscillator power-amplifier with stimulated Brillouin scattering (SBS) beam cleanup or wavefront reversal typically incorporates a Faraday isolator to outcouple the Stokes light, limiting the power scalability. Volume Bragg gratings (VBGs) have the potential for scaling to higher powers. We report here the results of tests on a VBG designed to resolve wavelengths 0.060 nm apart, corresponding to the 16 GHz frequency shift for SBS backscattering at 1064 nm in …
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[tr][td=2,1]ESTCP Live Site Demonstrations Former Camp Beale, Marysville, CA[/td][td]
23 Aug 2011
[/td][td]
51 pages
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[tr][td=5,1]Authors: ENVIRONMENTAL SECURITY TECHNOLOGY CERTIFICATION PROGRAM OFFICE (DOD) ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This document serves as the demonstration data report for the Man-Portable Electromagnetic Induction (EMI) Array for UXO Detection and Discrimination, or TEMTADS MP 2x2 Cart, participation in the Environmental Security Technology Certification Program (ESTCP) Live Site Demonstrations at the former Camp Beale, located in Marysville, CA in June, 2011. To limit the repetition of information, demonstration- and site- specific information that is presented elsewhere, such as the ESTCP Live Site …
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[tr][td=2,1]Defense Finance and Accounting Service Needs to Improve Controls Over the Completeness and Accuracy of the Cash Management Report[/td][td]
15 Aug 2011
[/td][td]
35 pages
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[tr][td=5,1]Authors: Amy J Frontz; INSPECTOR GENERAL DEPT OF DEFENSE ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
We assessed the completeness and accuracy of the Cash Management Report. This is the first of two reports relating to the reconciliation of Fund Balance with Treasury for the Other Defense Organizations (ODOs). As of September 30, 2009, DoD reported $80.3 billion in Fund Balance with Treasury on the ODO General Fund Balance Sheet. The DoD IG found that the Cash Management Report was not complete or accurate. Specifically, the …
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[tr][td=2,1]Pashtun Social Structure: Cultural Perceptions and Segmentary Lineage Organization[/td][td]
03 Aug 2011
[/td][td]
25 pages
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[tr][td=5,1]Authors: Joseph A Tainter; Donald G MacGregor; MACGREGOR BATES INC COTTAGE GROVE OR [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The Pashtun are an ethnic group that straddles the Afghanistan-Pakistan border, and are the largest group in Afghanistan. Pashtun social structure is what anthropologists term a segmentary lineage system. In such a system, there is a hierarchy of social groupings starting at the local level, then proceeding upward through various levels to an entire ethnic group. These relationships are based on kinship and shared culture. Segmentary lineage organization presents outsiders …
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[tr][td=2,1]Evaluation of Bridges Subjected to Military Loading and Dynamic Hydraulic Effects: Review of Design Regulations, Selection Criteria, and Inspection Procedures for Bridge Railing Systems[/td][td]
AUG 2011
[/td][td]
222 pages
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[tr][td=5,1]Authors: Alberto M. Figueroa; Elizabeth Negron; Genock Portela; Rodney N. Gonzalez-Rivera; Henry Diaz-Alvarez; Gerardo I. Velazquez; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS GEOTECHNICAL AND STRUCTURES LAB [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report presents the results of the initial phase of a research study with the objective of documenting the current state-of-the-practice, at the national level and for the 32 states and the Commonwealth of Puerto Rico having military installations, related to the requirements, selection criteria, and inspection process for bridge safety barriers. The focus of the study was directed at identifying policies and recommended practices related to low speed, low …
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[tr][td=2,1]Dynamic Structural Flexible-Beam Response to a Moving Barge Train Impact Force Time-History Using Impact_Beam[/td][td]
Aug 2011
[/td][td]
303 pages
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[tr][td=5,1]Authors: Robert M Ebeling; Abdul N Mohamed; Jose R Arroyo; Barry C White; Ralph W Strom; Bruce C Barker; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS INFORMATION TECHNOLOGY LAB [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
To design simply-supported, flexible impact beams spanning between cells or bents for lock approach walls, a dynamic structural analysis of the beam under impact time-history loads for design- specific barge trains is required. At several locks, this flexible structural feature is the primary structural member resisting the glancing-blow impact event of a barge train as it aligns itself with a lock. This technical report describes an engineering methodology used to …
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[tr][td=2,1]Ecological DYnamics Simulation Model - Light (EDYS-L): User’s Guide Version 4.6.4[/td][td]
Aug 2011
[/td][td]
94 pages
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[tr][td=5,1]Authors: Cade L Coldren; Terry McLendon; W M Childress; David L Price; Mark R Graves; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS ENVIRONMENTAL LAB [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
THIS REPORT DESCRIBES THE ECOLOGICAL DYNAMICS SIMULATION MODEL LIGHT MODEL (EDYS-L) IN TERMS OF ITS FUNCTION AND HOW TO USE THE MODEL SOFTWARE. EDYS-L IS DESIGNED TO MECHANISTICALLY SIMULATE COMPLEX ECOLOGICAL DYNAMICS ACROSS SPATIAL SCALES RANGING FROM SQUARE METERS TO LANDSCAPE AND WATERSHED LEVELS. MODULES INCLUDE CLIMATIC SIMULATORS, HYDROLOGY, SOIL PROFILE, NUTRIENT AND CONTAMINANT CYCLES, PLANT COMMUNITY DYNAMICS, HERBIVORY, ANIMAL DYNAMICS, MANAGEMENT ACTIVITIES, AND NATURAL/ANTHROPOGENIC DISTURBANCES. DESIGNATION OF SCENARIOS AND …
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[tr][td=2,1]Transforming Wartime Contracting: Controlling Costs, Reducing Risks[/td][td]
Aug 2011
[/td][td]
249 pages
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[tr][td=5,1]Authors: COMMISSION ON WARTIME CONTRACTING ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Contractors represent more than half of the U.S. presence in the contingency operations in Iraq and Afghanistan, at times employing more than a quarter-million people. They have performed vital tasks in support of U.S. defense, diplomatic, and development objectives. But the cost has been high. Poor planning, management, and oversight of contracts has led to massive waste and has damaged these objectives. The volume and complexity of contract actions have …
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[tr][td=2,1]High Frontier: The Journal for Space and Missile Professionals. Volume 7, Number 4, August 2011[/td][td]
Aug 2011
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[tr][td=5,1]Authors: AIR FORCE SPACE COMMAND PETERSON AFB CO
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
This issue of High Frontier Journal, our final edition, appropriately focuses on the Report of the Commission to Assess United States National Security Space Management and Organization and its impact 10 years later. Commonly known as the Space Commission, this landmark study helped shape today’s national security space enterprise.
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[tr][td=2,1]Capability and Interface Assessment of Gaming Technologies for Future Multi-Unmanned Air Vehicle Systems[/td][td]
Aug 2011
[/td][td]
34 pages
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[tr][td=5,1]Authors: Marc Gacy; ALION SCIENCE AND TECHNOLOGY-MA&D BOULDER CO [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report evaluates several gaming technologies and details their applicability to future control concepts for multiple unmanned air vehicle systems (UAS). Current gaming technologies evaluated include Real-Time Strategy (RTS) games, which require the simultaneous control of multiple entities; Massively Multiplayer Online Role Playing Games (MMORPG), which necessitate the management of multiple independent entities with sophisticated capabilities; and finally, arcade-style games, which demand the use of mitigation strategies to contend with …
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[tr][td=2,1]The Association Between Suicide and OEF/OIF Deployment History[/td][td]
Aug 2011
[/td][td]
8 pages
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[tr][td=5,1]Authors: Mark Reger; GENEVA FOUNDATION LAKEWOOD WA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
One of the most important questions in military suicide research at this time is whether deployment in support of Operations Iraqi or Enduring Freedom (OIF/OEF) is associated with an increased risk of suicide. The equivocal research conducted to date on this topic creates a confusing picture for military senior leaders and the American public. The Report of the Blue Ribbon Workgroup on Suicide Prevention in the Veteran Population (Peake, 2008) …
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[tr][td=2,1]Coalition Interoperability Measurement Frameworks Literature Survey[/td][td]
Aug 2011
[/td][td]
102 pages
[/td][/tr]
[tr][td=5,1]Authors: Philip Bury; DEFENCE RESEARCH AND DEVELOPMENT CANADA OTTAWA (ONTARIO) CENTRE FOR OPERATIONAL RESEARCH AND ANALYSIS [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This paper is the report of a review of selected works that were referred to in a 2007 survey of methods to measure interoperability between military forces. It forms part of an effort to develop a framework for assessing interoperability in command, control, computers, and communications. The framework is being developed by the Joint Studies Operational Research Team, and is sponsored by Assistant Deputy Minister (Information Management). For the framework, …
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[tr][td=15%]Total Results: 8288
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[tr][td=15%]Total Results: 2728
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[tr][td=2,1]Robotics Research for Cybersecurity
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24 Jan 2012
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4 pages
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[tr][td=5,1]Authors: Wei-Min Shen; UNIVERSITY OF SOUTHERN CALIFORNIA MARINA DEL REY [/td][/tr]
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The overall objective of this project is to conduct a comprehensive study of robotics research in the context of cybersecurity. The specific objectives are as follows: (1) Create a realistic cybersecurity test scenario that captures the unique and increasingly difficult robotics research challenges; (2) Survey the state-of-the-art in applicable research and technology; (3) Identify and analyze the salient research challenges with a primary focus on computational sciences; (4) Define multiple …
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[tr][td=2,1]Buildings in the 21st Century: Ultra-Efficient and Business-Smart Strategies for Transforming the Nation’s Buildings[/td][td]
29 Nov 2011
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25 pages
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[tr][td=5,1]Authors: Roland Risser; DEPARTMENT OF ENERGY WASHINGTON DC OFFICE OF ENERGY EFFICIENCY AND RENEWABLE ENERGY [/td][/tr]
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The presentation will provide an overview of the cutting-edge efficiency strategies and technologies being employed to design new and renovate existing buildings - and show how federally sponsored research and development supports this progress.
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[tr][td=2,1]R&D of Energetic Ionic Liquids[/td][td]
Nov 2011
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23 pages
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[tr][td=5,1]Authors: Tom Hawkins; AIR FORCE RESEARCH LAB EDWARDS AFB CA PROPULSION DIRECTORATE [/td][/tr]
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This presentation reviews current research and development of energetic ionic liquids, including state-of-the-art fuel, advanced chemical propulsion for spacecraft, history of energetic ionic liquids, and proposes greener chemical propulsion via energetic ionic liquids in advanced monopropellants
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[tr][td=2,1]Spaceborne Ocean Intelligence Network: SOIN - Fiscal Year 10/11 Year-End Summary[/td][td]
Oct 2011
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76 pages
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[tr][td=5,1]Authors: Darryl Williams; Brendan DeTracey; Paris W Vachon; John Wolfe; Will Perrie; Pierre Larouche; Chris Jones; Joe Buckley; Sean Pecknold; Cristina Tollefsen; DEFENCE RESEARCH AND DEVELOPMENT CANADA OTTAWA (ONTARIO) [/td][/tr]
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The Spaceborne Ocean Intelligence Network (SOIN) is a six-year research and operational development project that addresses barriers to developing and implementing oceanographic applications derived from Earth-observation sensors such as RADARSAT-2 and MODIS, capabilities that will be provided by the Polar Epsilon Project, combined with existing AVHRR and MERIS sensor data. The project is divided into two phases. The recently terminated three-year Phase I focused on developing state-of-the-art sea-surface temperature and …
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[tr][td=2,1]The ROMS IAS Data Assimilation and Prediction System: Quantifying Uncertainty[/td][td]
13 Sep 2011
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5 pages
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[tr][td=5,1]Authors: Andrew M Moore; Brian S Powell; CALIFORNIA UNIV SANTA CRUZ DEPT OF OCEAN SCIENCES [/td][/tr]
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The main objectives of this project were: (i) to assess the impact of observations on ocean state estimates and the ensuing forecasts; (ii) to quantify the expected errors in 4-dimensional variational (4D-Var) ocean circulation estimates: and (iii) to develop multimodel ensemble and superensemble methods for ocean models. The primary tool used in this project was the Regional Ocean Modeling System (ROMS). To address the aforementioned goals and objectives, we used …
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[tr][td=2,1]Improved Basis Functions for Dynamic Calibration of Semi-Empirical Thermospheric Models[/td][td]
Sep 2011
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10 pages
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[tr][td=5,1]Authors: Eric K Sutton; Samuel B Cable; Chin S Lin; Frank A Marcos; AIR FORCE RESEARCH LAB KIRTLAND AFB NM SPACE VEHICLES DIRECTORATE [/td][/tr]
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State-of-the-art satellite drag models require upgrades to meet operational Precision Orbit Determination requirements for collision avoidance, reentry predictions and catalog maintenance. Accurate model representations of the upper atmosphere are not currently possible without the use of data assimilation, or model calibration. Due to incomplete global data sampling in the thermosphere, such calibration has only been successfully demonstrated by fitting the available data to a low-dimensional model. The High Accuracy Satellite …
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[tr][td=2,1]Development of Nanoporous Carbide-Derived Carbon Electrodes for High-Performance Lithium-Ion Batteries[/td][td]
Sep 2011
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93 pages
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[tr][td=5,1]Authors: Kamryn M Sakamoto; NAVAL POSTGRADUATE SCHOOL MONTEREY CA [/td][/tr]
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Lithium ion batteries are the state-of-the-art power sources for portable electronic devices and, due to their superior energy and power densities, are promising candidates for the demanding energy storage applications of the U.S. Navy and other branches of the military. While graphitic carbon is currently the most common anode material in lithium ion batteries, it suffers from low specific capacity (372 mAh/g) and poor power characteristics. In contrast, amorphous carbons …
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[tr][td=2,1]Light Tactical Wheeled Vehicles - A Fuel Efficient Soultion Enabled by Boosted Down Sized Engines Managed with Open Control Systems[/td][td]
AUG 2011
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5 pages
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[tr][td=5,1]Authors: Gustav Johnson; AVL POWERTRAIN ENGINEERING INC PLYMOUTH MI [/td][/tr]
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Modern medium and heavy duty Commercial Off The Shelf (COTS) diesel engines take advantage of state-of-the-art technologies to deliver excellent performance while meeting the most stringent emissions legislation. While some of these technologies offer significant advantages in terms of engine efficiency, performance and weight versus traditional military engines, others are driven purely by the need to meet emissions standards. In order to successfully adapt these COTS engines for military use …
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[tr][td=2,1]Applicability of Visual Analytics to Defence and Security Operations[/td][td]
JUN 2011
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51 pages
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[tr][td=5,1]Authors: Valerie Lavigne; Denis Gouin; DEFENCE RESEARCH AND DEVELOPMENT CANADA VALCARTIER (QUEBEC) [/td][/tr]
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In the context of modern defence and security operations, analysts are faced with a continuously growing set of information of different nature which causes significant information overload problems and prevent developing good situation awareness. Fortunately, Visual Analytics (VA) has emerged as an efficient way of handling and making sense of massive data sets by exploiting interactive visualization technologies and human cognitive abilities. Defence R&D Canada has conducted a review of …
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[tr][td=2,1]The Economics of Managed Print and Imaging Services[/td][td]
JUN 2011
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91 pages
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[tr][td=5,1]Authors: Carl R. Blazek; Jesse K. Taijeron; NAVAL POSTGRADUATE SCHOOL MONTEREY CA [/td][/tr]
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To facilitate a baseline economic assessment, the concept of Managed Print and Imaging Services (MPIS) is introduced first. Next, a transferable process to determine the most economical print and imaging option is outlined so that NAVSISA, as well as other organizations, can utilize it. A baseline economic assessment of NAVSISA s current nonstandardized procurement and use of print and imaging services follows. This data is then compared to the total …
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[tr][td=2,1]Segmented Mirror Telescope Model and Simulation[/td][td]
JUN 2011
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69 pages
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[tr][td=5,1]Authors: Travis W. Axtell; NAVAL POSTGRADUATE SCHOOL MONTEREY CA [/td][/tr]
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The Segmented Mirror Telescope (SMT) housed at the Naval Postgraduate School is a unique, state-of-the-art optical instrument built to explore new technologies needed for future space-based telescopes. A discrete Fourier transform wavefront reconstruction technique developed at Lawrence Livermore National Laboratory is discussed in this thesis as applied to a hexagonal aperture. A Fourier domain implementation of a spatial-frequency modal controller for a simple spring-mass model of a deformable mirror surface …
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[tr][td=2,1]Quantification of Protein Signatures in Archived Human Prostate Tissues Using Shotgun Proteomic Methods[/td][td]
Jun 2011
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8 pages
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[tr][td=5,1]Authors: Michael Wright; IOWA UNIV IOWA CITY [/td][/tr]
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Biomarkers that robustly predict the metastatic potential of localized CaP are sorely needed to effectively treat localized CaP patients that pose the greatest risk of developing significant CaP. Biomarkers specific to significant CaP are also necessary if more effective drugs are going to be developed that can target and cure patients afflicted by this deadly disease. Proteins represent some of the most powerful molecular biomarkers to human disease such as …
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[tr][td=2,1]Development of a Multileaf Collimator for Proton Radiotherapy[/td][td]
Jun 2011
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54 pages
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[tr][td=5,1]Authors: W G McKenna; PENNSYLVANIA UNIV PHILADELPHIA [/td][/tr]
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This report describes the sixth year of a project to design and construct multileaf collimators (MLC) to be used in proton radiotherapy, the fifth year of the project to develop scanned beam technology for proton radiotherapy, and the fourth year of the project to develop image guided treatment protocols for proton therapy. This research project is a joint collaborative effort between the University of Pennsylvania (HUP) and the Walter Reed …
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[tr][td=2,1]The Government Assistance Center: A Vehicle for Transitioning to the Host Government[/td][td]
MAY 2011
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75 pages
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[tr][td=5,1]Authors: Raymond A. Millen; Carolyn Pruitt; ARMY WAR COLL CARLISLE BARRACKS PA PEACEKEEPING AND STABILITY OPERATIONS INST [/td][/tr]
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Policy-makers and strategists have long recognized that complexity and chaos are common features of the strategic environment, which encompasses both the international and domestic realms. In war, the military seeks to mitigate these features through superb organization and staff-work, among other pursuits. Unfortunately, outside of the military, this same discipline is not applied to other endeavors, such as Security Sector Reform, Disaster Response, and Humanitarian Assistance. In this monograph, Professor …
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[tr][td=2,1]Extending Bayesian Logic Programs for Plan Recognition and Machine Reading[/td][td]
MAY 2011
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38 pages
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[tr][td=5,1]Authors: Sindhu V. Raghavan; TEXAS UNIV AT ARLINGTON DEPT OF COMPUTER SCIENCE [/td][/tr]
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Statistical relational learning (SRL) is the area of machine learning that integrates both first-order logic and probabilistic graphical models. The advantage of these formalisms is that they can handle both uncertainty and structured/relational data. As a result, they are widely used in domains like social network analysis, biological data analysis, and natural language processing. Bayesian Logic Programs (BLPs), which integrate both first-order logic and Bayesian networks are a powerful SRL …
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[tr][td=2,1]By Product Synergy Analysis[/td][td]
24 MAR 2011
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94 pages
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[tr][td=5,1]Authors: Francisco Leguiza; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT [/td][/tr]
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The United States Air Forces generates various waste during the repair and overhaul activities. These wastes can involve hazardous material. Depending on the material, technologies exist or could be readily developed to convert wastes into feed-stock for other processes The old concept of managing material from cradle-to-grave now has evolved into cradle-to-cradle. This concept goes beyond the disposal of waste and can be even more cost-effective than recycling. The objective …
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[tr][td=2,1]DoD Biometrics Collaboration Forum 25-27 Jan 2011. Event Report[/td][td]
Mar 2011
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[tr][td=5,1]Authors: ARMY BIOMETRICS IDENTITY MANAGEMENT AGENCY WASHINGTON DC
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The purpose of the 2011 Biometrics Collaboration Forum (BCF) was to integrate the community of biometrics users within the Department of Defense (DoD) and affiliated agencies. The event was not designed as a series of lectures or updates, but as a collaborative event designed to further biometrics in the DoD. Forum Objectives included: 1) Discussing the status of biometrics endeavors across the DoD 2) Collaborating to identify the highest priority …
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[tr][td=2,1]Literature Review of the State of the Art for Graphical User Interfaces (GUI) for a Series of Oil Quality Monitoring Sensors for Shipboard Equipment[/td][td]
Mar 2011
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46 pages
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[tr][td=5,1]Authors: K J KarisAllen; FACTS ENGINEERING INC HALIFAX (NOVA SCOTIA) [/td][/tr]
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Over the past several years, DRDC Atlantic has embarked on a program for the evaluation of existing technologies, as well as the development of new technologies for application in platform specific lubricating oil condition monitoring systems. The current study is primarily focused on conducting a literature review of the current state of the art for graphical user interfaces (GUI) with general discussions of background technologies and potential frameworks for developing …
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[tr][td=2,1]Landscape Analysis and Algorithm Development for Plateau Plagued Search Spaces[/td][td]
28 FEB 2011
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23 pages
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[tr][td=5,1]Authors: Adele Howe; L. D. Whitley; COLORADO STATE UNIV FORT COLLINS DEPT OF COMPUTER SCIENCE [/td][/tr]
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Over the last 10 to 20 years, heuristic search in the Operations Research and Artificial Intelligence communities has focused on developing high level general purpose algorithms, such as Tabu Search and Genetic Algorithms. However, understanding of when and why these algorithms perform well still lags. Our project extended the theory of certain combinatorial optimization problems to develop analytical characterizations of portions of search spaces and as the basis for creating …
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[tr][td=2,1]Wide Area Detection and Identification of Underwater UXO Using Structural Acoustic Sensors[/td][td]
FEB 2011
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86 pages
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[tr][td=5,1]Authors: J. A. Bucaro; B. H. Houston; H. Simpson; D. Calvo; L. Kraus; T. Yoder; M. Saniga; S. Dey; A. Sarkissian; DEPUTY DIRECTOR OF DEFENSE RESEARCH AND ENGINEERING ARLINGTON VA STRATEGIC ENVIRONMENTAL RESEARCH AND DEVELOPMENT PROGRAM [/td][/tr]
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This project explored the feasibility and advantages of applying the structural acoustic feature-based technique to the detection and identification of underwater unexploded ordnance, especially for buried targets. In the structural acoustic regime, the echoes are related to the vibrational dynamics of the object, and time-frequency features in the scattered echoes can be used to “fingerprint” and identify the target. The research focused on (1) comprehensive state-of-the-art UXO scattering measurements in …
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[tr][td=2,1]SCIPUFF Tangent-Linear/Adjoint Model for Release Source Location from Observational Data[/td][td]
18 JAN 2011
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41 pages
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[tr][td=5,1]Authors: O. O. Oluwole; S. E. Albo; Richard C. Miake-Lye; AERODYNE RESEARCH INC BILLERICA MA [/td][/tr]
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The threat of atmospheric contamination by hazardous materials remains a high national security concern. There is a strong need for the development of emerging technologies which can significantly advance risk assessment and response capabilities. In this project, Aerodyne Research Inc. (ARI) has developed and demonstrated an algorithm for source estimation, called AIMS (“Aerodyne Inverse Modeling System”). AIMS takes as input all available observational data and optionally any prior knowledge of …
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[tr][td=2,1]Engineered Intrinsic Bioremediation of Ammonium Perchlorate in Groundwater[/td][td]
DEC 2010
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39 pages
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[tr][td=5,1]Authors: Andrzej Paszczynski; Ronald Crawford; Thomas Hess; IDAHO UNIV MOSCOW [/td][/tr]
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A variety of perchlorate remediation technologies are currently commercially available. One of them, biological degradation involves perchlorate reducing bacteria (PRBs), which are widespread in the environment. PRBs have the ability to grow in either the presence or absence of air, provided proper nutrients are available in the environment. Both in situ and ex situ biological treatment systems have already been applied at full scale to treat perchlorate contamination. Implementation of …
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[tr][td=2,1]Combining Security Assurance and High Performance in Hostile Environments[/td][td]
NOV 2010
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23 pages
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[tr][td=5,1]Authors: Pierre Capillon; Antoine Casanova; CS COMMUNICATION AND SYSTEMS LE PLESSIS-ROBINSON (FRANCE) [/td][/tr]
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With growing global bandwidth consumption and increasing cyber-attacks, information security actors are in constant need for scalable, high performance products that still provide a high level of security assurance. The French national project “SHIVA” aims at developing a new security architecture providing multiple services and such performance and security assurance levels. Based on research and development from various fields, this paper presents usages of technologies from the high performance computing …
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[tr][td=2,1]Multifunctional Carbon Nanotube-Based Sensors for Damage Detection and Self Healing in Structural Composites[/td][td]
29 OCT 2010
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27 pages
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[tr][td=5,1]Authors: Tsu-Wei Chou; Erik T. Thostenson; DELAWARE UNIV NEWARK [/td][/tr]
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During the past year of the research program focusing on developing composites with damage sensing and self-healing functionalities based on carbon nanotubes, improvements to the state-of-the-art in nanocomposite processing have been made. In order to accommodate the processing of thick-section composites, an alternative approach to the traditional calandering method of carbon nanotube dispersion has been developed. A fiber sizing agent containing multiwalled carbon nanotubes was used in the processing of …
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[tr][td=2,1]Accelerating Biomedical Research in Designing Diagnostic Assays, Drugs, and Vaccines[/td][td]
Oct 2010
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11 pages
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[tr][td=5,1]Authors: Anders Wallqvist; Nela Zavaljevski; Ravi V Satya; Rajkumar Bondugula; Valmik Desai; Xin Hu; Kamal Kumar; Michael S Lee; In-Chul Yeh; Chenggang Yu; ARMY MEDICAL RESEARCH AND MATERIEL COMMAND FORT DETRICK MD TELEMEDICINE AND ADVANCED TECH RESEARCH CENTER [/td][/tr]
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The US Department of Defense Biotechnology High-Performance Computing Software Applications Institute for Force Health Protection develops state-of-the-art high-performance computing applications that accelerate biomedical research in the development of diagnostic assays, drugs, and vaccines. The BHSAI works together with DoD life scientists to develop and integrate HPC software applications into DoD biomedical research programs.
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[tr][td=2,1]Advanced Multi-Moment Microphysics for Precipitation and Tropical Cyclone Forecast Improvement within COAMPS[/td][td]
30 SEP 2010
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10 pages
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[tr][td=5,1]Authors: Ming Xue; OKLAHOMA UNIV NORMAN SCHOOL OF METEOROLOGY [/td][/tr]
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The first major focus of this project is to implement and test a microphysics scheme capable of predicting up to three moments (total number concentration, mass, and the 6th-moment reflectivity factor) of hydrometeor hydrometeor particle size distributions (PSDs) inside the Navy’s Coupled Ocean/Atmosphere Mesoscale Prediction System (COAMPS). After being implemented within the COAMPS, the scheme will be applied for the first time to tropical cyclone (TC) prediction, and to continental-scale …
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[tr][td=2,1]Role of the QBO in Modulating the Influence of the 11 Year Solar Cycle on the Atmosphere Using Constant Forcings[/td][td]
21 Sep 2010
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18 pages
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[tr][td=5,1]Authors: Katja Matthes; Daniel R Marsh; Rolando R Garcia; Douglas E Kinnison; Fabrizio Sassi; Stacy Walters; NAVAL RESEARCH LAB WASHINGTON DC [/td][/tr]
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We present a set of six 20 year experiments made with a state of the art chemistry-climate model that incorporates the atmosphere from the surface to the lower thermosphere. The response of the middle atmosphere to the 11 year solar cycle, its impact on the troposphere, and especially the role of an externally prescribed stratospheric quasi biennial oscillation (QBO) is investigated with NCAR s Whole Atmosphere Community Climate Model (WACCM3). …
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[tr][td=2,1]Overview of Materials R&D at Oak Ridge National Laboratory[/td][td]
23 Aug 2010
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28 pages
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[tr][td=5,1]Authors: Peter F Tortorelli; OAK RIDGE NATIONAL LAB TN MATERIALS SCIENCE AND TECHNOLOGY DIV [/td][/tr]
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[tr][td=2,1]Molecular Dynamics Modeling of Ionic Liquids in Electrospray Propulsion[/td][td]
JUN 2010
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126 pages
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[tr][td=5,1]Authors: Nanako Takahashi; MASSACHUSETTS INST OF TECH CAMBRIDGE [/td][/tr]
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Micro-propulsion has been studied for many years due to its applications in small-tomedium sized spacecraft for precise satellite attitude control. Electrospray thrusters are promising thrusters built upon the state of the art in micro-technology and with flexible performance in terms of their high efficiency and high specific impulse. One challenge is to investigate in detail the mechanism for ion emission to complement experimental results and understand better how emission occurs …
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[tr][td=2,1]Infrared Fibers for Sensors[/td][td]
JUN 2010
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3 pages
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[tr][td=5,1]Authors: NAVAL RESEARCH LAB WASHINGTON DC [/td][/tr]
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At NRL, we are involved in the research and development of specialty infrared optical fibers, glasses, ceramics, and thin films. We have built world class state-of-the-art facilities for making high purity chemicals and unique optical materials of unequaled quality, which are being exploited in optical devices and systems for Navy and DoD applications. One of the core scientific areas that we have pioneered is based primarily on infrared (IR) transmitting …
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[tr][td=2,1]An Integrated Docking Pipeline for the Prediction of Large-Scale Protein-Protein Interactions[/td][td]
Jun 2010
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6 pages
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[tr][td=5,1]Authors: Xin Hu; Michael Lee; Kalam Kumar; Anders Wallqvist; ARMY MEDICAL RESEARCH AND MATERIEL COMMAND FORT DETRICK MD [/td][/tr]
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Knowledge of the three-dimensional (3D) structures of protein complexes provides a fundamental understanding of biological systems, as well as novel insights for antimicrobial drug and vaccine design. Protein-protein docking is used to predict the 3D structures of protein complexes from their components in silico. In this study, we developed a protein-protein docking pipeline (PPDP) that integrates a variety of state-of-the-art protein docking and structure prediction techniques, providing a systematic platform …
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[tr][td=2,1]Investigation of Super Tube Structure and Performance (Postprint)[/td][td]
APR 2010
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11 pages
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[tr][td=5,1]Authors: Quinn Leland; Rengasamy Ponnappan; Lanchao Lin; Edward Mahefkey; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH PROPULSION DIR/POWER DIV [/td][/tr]
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A new kind of heat transport device introduced by an inventor is intriguing the heat pipe community for the past several years. This device with the resemblance of the hermetically sealed structure and design of a conventional heat pipe or thermosyphon is claimed as thermally superconductive and offers solid state mode of heat transport. A host of speculations about this claim was emerging among research agencies that included academic and …
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[tr][td=2,1]Modeling Change Over Time: Conceptualization, Measurement, Analysis, and Interpretation[/td][td]
12-Nov-2009
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15 pages
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[tr][td=5,1]Authors: David Chan; SINGAPORE MANAGEMENT UNIV [/td][/tr]
[tr][td=6,1][table=98%]
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The objective of this research report is to provide a state-of-the art review of the issues and methods relating to the modeling of change over time. The focus is on the quantitative assessment of the concept of change of time, which includes issues of conceptualization, measurement, data analysis, and interpretation. The rationale and motivation for this research originated from the author’s observations (specifically in the past decade in the capacities …
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[tr][td=2,1]Towards Complex Abiotic Systems for Chemical and Biological Sensing[/td][td]
Nov-2009
[/td][td]
37 pages
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[tr][td=5,1]Authors: James J Valdes; Erica R Valdes; Donna M Hoffman; EDGEWOOD CHEMICAL BIOLOGICAL CENTER ABERDEEN PROVING GROUND MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
There have been at least two decades of research focused on developing biosensors, which mimic human physiological responses, but most of the work has attempted to couple living cells, their receptors, and even scaffolded tissues to optical or electronic sensors. All these biosensors had limitations imposed upon them by living systems. They required extensive life support and had very limited shelf life. Advances in synthetic biology, materials science, molecular engineering, …
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[tr][td=2,1]Grid-Enabled Quantitative Analysis of Breast Cancer[/td][td]
Oct 2009
[/td][td]
51 pages
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[tr][td=5,1]Authors: Andrew R Jamieson; Maryellen L Giger; Karen Drukker; Lorenzo Pesce; Hui Li; Neha Bhooshan; Yading Yuan; CHICAGO UNIV IL [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The long-term goal of this research is to improve breast cancer diagnosis, risk assessment, response assessment, and patient care via the use of large-scale, multi-modality computerized image analysis. The central hypothesis of this research is that large-scale image analysis for breast cancer research will yield improved accuracy and reliability when optimized over multiple features and large multi-modality databases. We designed and executed a pilot study to utilize large scale parallel …
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[/table]

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[tr][td=2,1]Particle Deposition onto Enclosure Surfaces[/td][td]
20-Aug-2009
[/td][td]
61 pages
[/td][/tr]
[tr][td=5,1]Authors: De-Ling Liu; AEROSPACE CORP EL SEGUNDO CA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
In space applications, the main concern of particle deposition arises from the undesirable effects of surface obscuration on contamination-sensitive surfaces. The development of effective mitigation strategies to minimize particulate contamination requires the understanding of particle transport and deposition as well as the associated physical factors affecting the processes. The knowledge gleaned from the state-of-the-art literature review presented here can be applied to an enclosure scale as small as a spacecraft …
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[tr][td=2,1]A Review of Methods for Moving Boundary Problems[/td][td]
Jul-2009
[/td][td]
27 pages
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[tr][td=5,1]Authors: C E Kees; M W Farthing; R C Berger; T C Lackey; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS COASTAL AND HYDRAULICS LAB [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
State-of-the-art numerical methods for solving moving boundary problems arising from multiphase flow and fluid-structure interaction modeling are reviewed. The emphasis of the review is on robust methods that do not require the mesh to conform to the moving boundary. The impetus for this review is the Coastal and Hydraulics Laboratory’s mission in navigation. Accurately predicting the effect of a vessel on a waterway and the vessel motion are required to …
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[/td][/tr]
[tr][td=2,1]Exploring the Pathogenic and Therapeutic Implications of Aberrant Splicing in Breast Cancer[/td][td]
JUL 2009
[/td][td]
47 pages
[/td][/tr]
[tr][td=5,1]Authors: William D. Foulkes; Jacek Majewski; SIR MORTIMER B DAVIS JEWISH GENERAL HOSPITAL MONTREAL (QUEBEC) [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
In this proposal, we set out to a) systematically monitor splicing variant profiles in breast cancer susceptibility genes and b) explore the role of alternative splicing in breast chemotherapy using a global strategy. In doing so, we hope to identify and validate candidate splicing variants involved in tumorigenesis using polony digital exon-profiling and functional assays. We are moving forward on four fronts - 1) the barcode methodology is in development; …
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[tr][td=2,1]Summary of the Maritime Force Protection Technology Demonstration Project Underwater Threats Component Build 1 Trial[/td][td]
Jun-2009
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Anna Crawford; David Hopkin; D V Crowe; Dana Maxwell; DEFENCE RESEARCH AND DEVELOPMENT ATLANTIC DARTMOUTH (CANADA)
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
The Maritime Force Protection Technology Demonstration Project (MFP TDP) is on-going at DRDC Atlantic with the objective of providing advice to the CF on force protection issues by examining requirements, state-of-the-art solutions and capability gaps, while conducting a series of tests and evaluations on developmental and COTS equipment. The Underwater Threats (UW) Component focuses on addressing deficiencies in current CF capabilities for countering underwater threats to Canadian ships in harbours …
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[tr][td=2,1]Emergence of Dissipative Structures in Current-Carrying Superconducting Wires (Postprint)[/td][td]
26-May-2009
[/td][td]
13 pages
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[tr][td=5,1]Authors: G A Levin; P N Barnes; J S Bulmer; J P Rodriguez; J A Connors; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH PROPULSION DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
We discuss the emergence of a spontaneous temperature and critical current spatial modulation in current-carrying high-temperature superconducting wire. The modulation of the critical current along the wire on a scale of 3-10 mm forces a fraction of the transport current to crisscross the resistive interface between the superconducting film and normal metal stabilizer attached to it. This generates additional heat that allows such structure to be self-sustainable. Stability and the …
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[tr][td=2,1]Microstructure-Sensitive Extreme Value Probabilities for High Cycle Fatigue of Ni-Base Superalloy IN100 (Preprint)[/td][td]
Mar-2009
[/td][td]
48 pages
[/td][/tr]
[tr][td=5,1]Authors: Craig P Przybyla; David L McDowell; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH MATERIALS AND MANUFACTURING DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
To quantify the effects of interactions between various microstructure attributes on fatigue life in the high cycle fatigue (HCF) regime, we have proposed a new microstructure-sensitive extreme value statistical framework. This framework couples the extreme value distributions of certain fatigue indicator parameters (FIPs) or response functions to the correlated microstructure attributes that exist at the extreme value locations of these FIPs. We demonstrate the application of this statistical framework to …
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[tr][td=2,1]Taxonomy for and Analysis of Anonymous Communications Networks[/td][td]
Mar-2009
[/td][td]
257 pages
[/td][/tr]
[tr][td=5,1]Authors: Douglas Kelly; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Any entity operating in cyberspace is susceptible to debilitating attacks. With cyber attacks intended to gather intelligence and disrupt communications rapidly replacing the threat of conventional and nuclear attacks, a new age of warfare is at hand. In 2003, the United States acknowledged that the speed and anonymity of cyber attacks makes distinguishing among the actions of terrorists, criminals, and nation states difficult. Even President Obama’s Cybersecurity Chief-elect feels challenged …
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[tr][td=2,1]Applying State-of-the-Art Technologies to Reduce Escape Times from Fires Using Environmental Sensing, Improved Occupant Egress Guidance, and Multiple Communication Protocols[/td][td]
06-Feb-2009
[/td][td]
37 pages
[/td][/tr]
[tr][td=5,1]Authors: Thomas T Street; Mark H Hammond; Frederick W Williams; NAVAL RESEARCH LAB WASHINGTON DC CHEMISTRY DIV [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
In 2006, under contract to the Consumer Product Safety Commission (CPSC), the Naval Research Laboratory (NRL) was tasked with investigating various technology and concepts–such as visual signals and unique audible sounds–that have the potential to improve residential occupant escape in the event of fire. The investigation included an evaluation of the feasibility of incorporating new technologies or concepts to aid escape capabilities and that may improve egress times in residential …
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[tr][td=2,1]A Novel Structural Health Management Approach for Steel Bridges[/td][td]
Feb-2009
[/td][td]
42 pages
[/td][/tr]
[tr][td=5,1]Authors: Vincent Hock; Michael Miller; Richard Lampo; Robert Mason; Lawrence Gintert; Mark Singleton; Steven Sweeney; Keith Chandler; CONCURRENT TECHNOLOGIES CORP JOHNSTOWN PA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
OBJECTIVES: Demonstrate and validate state-of-the-art and remote structural health and corrosion degradation monitoring of steel bridges * Employ system on two subject bridges to greatly reduce risk of catastrophic failure by providing advance warning of growing structural problems caused by corrosion/materials degradation * Subject Bridge 1 -1-20 Bridge, Vicksburg, MS - Steel truss through deck - About 23,000 vehicles per day - Westward movement of bridge piers E-1 and E02 …
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[tr][td=2,1]State of the Art Reinforcement for Concrete Bridge Decks[/td][td]
Feb-2009
[/td][td]
21 pages
[/td][/tr]
[tr][td=5,1]Authors: Vincent Hock; Steven Sweeney; Orange Marshall; Phil Malone; ARMY CORPS OF ENGINEERS OMAHA NE PROTECTIVE DESIGN CENTER [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
BACKGROUND: Deck corrosion is problematic and costly for vehicular bridges * The Army alone has more than 1,500 bridges on its installations, with the majority having reinforced concrete decks * FHWA Report RD-01-156 states that approximately one quarter of the direct cost of corrosion of bridges is maintenance and capital costs for concrete decks * FHWA studies have also found that indirect costs to the user due to traffic delays, …
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[tr][td=2,1]Unraveling the Nature of Chemical Reactivity of Complex Systems[/td][td]
13-Jan-2009
[/td][td]
34 pages
[/td][/tr]
[tr][td=5,1]Authors: Kopin Liu; INSTITUTE OF ATOMIC AND MOLECULAR SCIENCES TAIPEI (TAIWAN) [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This project was to gain fundamental understanding of the chemical reactivity of complex systems, specifically the state-correlation of product pairs in chemical reactions of polyatomic molecules, and the salvation dynamics of ion-solvent interactions that are fundamental to many important phenomena in chemistry and biology.
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[tr][td=2,1]Algorithm Design Study for Bathymetry Fusion-Review of Current State-of-the-art and Recommended Design Approach[/td][td]
30-Dec-2008
[/td][td]
30 pages
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[tr][td=5,1]Authors: Chad A Steed; Pau A Elmore; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS MARINE GEOSCIENCES DIV [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report reviews current fusion techniques used for bathymetry or other geospatial data, as motivated by the Naval Oceanographic Office’s (NAVOCEANO) need for intelligent fustion – combining two or more data sets in a manner that accounts for data uncertainty – of gridded and in situ bathymetric data sets. Based on this review, the recommended approach for building new bathymetry fusion algorithms uses loss interpolation to obtain a trend surface …
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[tr][td=2,1]Proceedings of the Antenna Applications Symposium (32nd) Held in Monticello, Illinois on 16-18 September 2008. Volume 1[/td][td]
20-Dec-2008
[/td][td]
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[tr][td=5,1]Authors: M W Elsallal; T L Roach; J T Bernhard; D Filipovic; G Potvin; D Fontaine; Y Saito; J-M Rollin; Z Popovic; J D Wolf; L M Paulsen; J B West; R J Mailloux; S G Santarelli; T M Roberts; D Luu; M Stasiowski; D Schaubert; M J Buckley; D H Schaubert; MASSACHUSETTS UNIV AMHERST DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
The Proceedings of the 2008 Antenna Applications Symposium is a collection of state-of-the art papers relating to antenna arrays, millimeter wave antennas, simulation, and measurement of antennas integrated antennas and antenna bandwidth and radiation improvements.
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[/td][/tr]
[tr][td=2,1]Proceedings of the Antenna Applications Symposium (32nd) Held in Monticello, Illinois on 16-18 September 2008. Volume 2[/td][td]
20-Dec-2008
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Daniel Schaubert; M W Elsallal; J B West; R J Mailloux; S G Santarelli; T M Roberts; D Luu; M Stasiowski; D Schaubert; M J Buckley; L M Paulsen; J D Wolf; T L Roach; J T Bernhard; D Filipovic; G Potvin; D Fontaine; Y Saito; J-M Rollin; Z Popovic; MASSACHUSETTS UNIV AMHERST DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
The Proceedings of the 2007 Antenna Applications Symposium is a collection of state-of-the art papers relating to antenna arrays millimeter wave antennas simulation and measurement of antennas integrated antennas and antenna bandwidth and radiation improvements.
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[tr][td=2,1]A New Kind of Laser Microphone for Photoacoustic Applications[/td][td]
Dec-2008
[/td][td]
8 pages
[/td][/tr]
[tr][td=5,1]Authors: Feng Jin; Sudhir Trivedi; Chen-Chia Wang; V Swaminathan; Narasimha S Prasad; ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER PICATINNY ARSENAL NJ [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
We present in this paper a new kind of laser-based microphone device capable of detecting minute displacements of the microphone diaphragm, leading to drastically improved sensitivity in detecting the impinging pressure waves like acoustic waves and water waves over existing state-of-the-art laser and fiber-optic microphones. The drastically improved sensitivity in detecting diaphragm surface displacements of the novel laser microphone leads to niche applications including the photoacoustic detection of molecules and …
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[tr][td]
[table=98%]
[tr][td=15%]Total Results: 2728
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Pages: Previous [1] 2 3 4 5 6 7 8 9 10 11 Next
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[table=98%]
[tr][td]
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[tr][td=15%]Total Results: 1360
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Pages: Previous [1] 2 3 4 5 6 7 8 9 10 11 Next
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Results per page:
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[tr][td][table]
[tr][td]Sort by:[/td][td=80]Title[/td][td=80]Date [/td][td=80]Pages[/td][td=60]Display:[/td][td=150]
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[tr][td][table=98%]
[tr][td=2,1]Very High Performance High Nitrogen Energetic Ingredients and Energetic Polymers for Structural Components
[/td][td]
31 Dec 2011
[/td][td]
75 pages
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[tr][td=5,1]Authors: Robson F Storey; Rodney L Willer; C G Campbell; UNIVERSITY OF SOUTHERN MISSISSIPPI HATTIESBURG [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This project investigated new energetic materials for use with a triazole cured binder system. Research was conducted in five main areas: 1) energetic materials based on the spiro[4.4]nonane system, 2) completion of our work on the 4,4- (methylenediimino)bis-1,2,5-oxadiazole-3-carboxylic acid and carboxamide, 3) a re-examination of the reaction of glyoxal with 3,4-diamino[1,2,5]oxadiazole, 4) synthesis and chemistry of 3-hydroxymethyl-4-amino[1,2,5]oxadiazole and 5) work on energetic polymers for structural components.
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[tr][td=2,1]Dynamic Structural Flexible-Beam Response to a Moving Barge Train Impact Force Time-History Using Impact_Beam[/td][td]
Aug 2011
[/td][td]
303 pages
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[tr][td=5,1]Authors: Robert M Ebeling; Abdul N Mohamed; Jose R Arroyo; Barry C White; Ralph W Strom; Bruce C Barker; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS INFORMATION TECHNOLOGY LAB [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
To design simply-supported, flexible impact beams spanning between cells or bents for lock approach walls, a dynamic structural analysis of the beam under impact time-history loads for design- specific barge trains is required. At several locks, this flexible structural feature is the primary structural member resisting the glancing-blow impact event of a barge train as it aligns itself with a lock. This technical report describes an engineering methodology used to …
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[tr][td=2,1]Structural Health Diagnosis and Prognostics Using Fatique and Crack Growth Monitoring[/td][td]
12 APR 2011
[/td][td]
21 pages
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[tr][td=5,1]Authors: Daniel Kujawski; Muralidhar K. Ghantasala; Subash Gokanakonda; Shabbir Hussain; WESTERN MICHIGAN UNIV KALAMAZOO DEPT OF MECHANICAL AND AERONAUTICAL ENGINEERING AND COMPUTER SCIENCE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Fatigue damage sensing and crack propagation monitoring of any structure is a prerequisite for reliable and effective structural health monitoring. This paper, discusses the role of two different sensors, i.e., crack propagation (CP) and fatigue damage (FD) sensors in structural health monitoring. The CP sensor is capable of detecting crack initiation and subsequent propagation within the structural component that essentially constitutes a diagnostics approach. The FD sensor monitors the actual …
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[tr][td=2,1]Non-Destructive Evaluation of Aircraft Structural Components and Composite Materials at DSTO Using Sonic Thermography[/td][td]
FEB 2011
[/td][td]
70 pages
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[tr][td=5,1]Authors: Kelly A. Tsoi; Nik Rajic; DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION VICTORIA (AUSTRALIA) AIR VEHICLES DIV [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report outlines the results of a series of non-destructive evaluations using sonic thermography. It examines the detection of closed cracks, delaminations, impact damage and other defects in a variety of structural components and composite materials used in aircraft structures. The results confirm the efficacy of the technique and highlight its potential to fill some of the capability gaps that currently exist in relation to challenging non-destructive inspection problems.
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[tr][td=2,1]Determination of Critical Flaw Size in Gun Launch 40-mm GRENADE[/td][td]
DEC 2010
[/td][td]
28 pages
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[tr][td=5,1]Authors: N. Payne; J. Jablonksi; J. Cordes; ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER PICATINNY ARSENAL NJ MUNITIONS ENGINEERING TECHNOLOGY CENTER [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The inspection and screening of flaws in high explosive filled gun fire projectiles are crucial to ensure safety for soldiers using these items. In-bore failure of structural components are sure to produce lethal consequences; therefore, it is of great importance to determine what the maximum permissible crack size is for a given component coming off the production floor. The analytical process to determine critical flaw size occurs in two stages. …
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[tr][td=2,1]Use of Fly Ash in the Mitigation of Alkali-Silica Reaction in Concrete[/td][td]
12 NOV 2010
[/td][td]
130 pages
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[tr][td=5,1]Authors: Kelsea Schwing; OREGON STATE UNIV CORVALLIS DEPT OF CIVIL ENGINEERING [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Alkali-silica reaction (ASR) is one of the leading causes of concrete deterioration throughout the world, and affects both structural and non-structural elements. Despite strong research efforts since its discovery by Stanton in the late 1930s, this deteriorating reaction is still not clearly understood nor are proper preventative measures effectively applied to reduce the risk of ASR. Central to the debate is a lack of clear understanding about how supplementary cementing …
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[tr][td=2,1]Environmental Variation in Contamination Outgas Testing of a Composite Material[/td][td]
15-Mar-2009
[/td][td]
30 pages
[/td][/tr]
[tr][td=5,1]Authors: Keith R Olson; Kelsey A Folgner; AEROSPACE CORP EL SEGUNDO CA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Molecular contamination degrades sensitive spacecraft surfaces and can adversely affect the useful life of a spacecraft. In order to accurately predict mission performance, a thorough understanding of the emission and condensation of potential spacecraft contaminants is necessary. Potential sources of contamination include composite materials that are often used for large structural components. The large mass of these composite structures can represent the largest outgassing source on a spacecraft. This report …
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[tr][td=2,1]Finite Element Model Optimization of the FalconSAT-5 Structural Engineering Model[/td][td]
Mar-2009
[/td][td]
124 pages
[/td][/tr]
[tr][td=5,1]Authors: Cole C Doupe; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Space launch vehicles produce tremendously harsh environments for their payloads. One of the worse contributors to this harsh environment is vibration. Launch vehicle contractors require accurate dynamic models in order to perform coupled loads analyses with each payload to mitigate risks. Accurate predictions of the dynamic response of the payload are not achieved easily. The Finite Element (FE) method has proven to be the best approach in creating accurate dynamic …
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[tr][td=2,1]Recommended Processes and Best Practices for Nondestructive Inspection (NDI) of Safety-Of-Flight Structures[/td][td]
Oct-2008
[/td][td]
97 pages
[/td][/tr]
[tr][td=5,1]Authors: John Brausch; David Campbell; Lawrence Butkus; Tommy Mullis; Michael Paulk; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH MATERIALS AND MANUFACTURING DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This document outlines critical processes, guidelines, and best practices for the nondestructive inspection (NDI) of safety-of-flight aircraft (SOF) structures. More specifically, this document provides rationale for requiring rigor in the definition, development, demonstration and implementation of NDI for United States Air Force (USAF) SOF aircraft structures. Topics include the critical role of NDI in the Aircraft Structural Integrity Program, defining inspection requirements, procedure development, capability estimation, procedure qualification, training, certification, …
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[tr][td=2,1]Evaluation of Nanocomposites as Lightweight Electronic Enclosures for Satellites’ Applications[/td][td]
JUN 2008
[/td][td]
98 pages
[/td][/tr]
[tr][td=5,1]Authors: Benjamin T. Harder; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The United States military is exploring the use of nanocomposite materials for satellite structural applications. Current composite spacecraft structures are nonconductive and must have expensive shielding materials applied in order to protect the spacecraft from catastrophic damage that can be caused by electromagnetic interference (EMI) and/or electrostatic discharge (ESD) which are characteristics of the space environment. Conductive nanocomposites are being developed for spacecraft structures that will provide ESD and EMI …
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[tr][td=2,1]Improved Navy Maintenance Through Corrosion-Fatigue Assessment Program[/td][td]
11-Mar-2008
[/td][td]
237 pages
[/td][/tr]
[tr][td=5,1]Authors: Wally Hoppe; DAYTON UNIV RESEARCH INST (URDI) OH STRUCTURAL INTEGRITY DIV [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The High-Strength Steel Corrosion-Fatigue Assessment program was designed to ensure reliability and supportability of current and emerging Naval aircraft by providing requisite engineering support to evaluate issues relevant to corrosion-fatigue of aircraft components. In this multi-year, multi-contract program, tools have been developed to assist in the establishment of maintenance options for corroded components. Experimental and analytical tools have been developed to classify corrosion in a manner tied to a reduction …
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[tr][td=2,1]Two Stellar Components in the Halo of the Milky Way[/td][td]
13 DEC 2007
[/td][td]
8 pages
[/td][/tr]
[tr][td=5,1]Authors: Daniela Carollo; Timothy C. Beers; Young-Sun Lee; Masashi Chiba; John E. Norris; Ronald Wilhelm; Thirupathi Sivarani; Brian Marsteller; Jeffrey A. Munn; Coryn A. Bailer-Jones; NAVAL OBSERVATORY FLAGSTAFF AZ [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The halo of the Milky Way provides unique elemental abundance and kinematic information on the first objects to form in the Universe, and this information can be used to tightly constrain models of galaxy formation and evolution. Although the halo was once considered a single component, evidence for its dichotomy has slowly emerged in recent years from inspection of small samples of halo objects. Here we show that the halo …
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[tr][td=2,1]Improved Control Authority in Flexible Structures Using Stiffness Variation[/td][td]
JUN 2007
[/td][td]
11 pages
[/td][/tr]
[tr][td=5,1]Authors: Ranjan Mukherjee; Steven W. Shaw; MICHIGAN STATE UNIV EAST LANSING [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This research investigated control authority enhancement in structural systems through methodical stiffness variation. Our early work focused on stiffness variation in a cantilever beam under the application of a buckling-type end force and control designs based on switching of the end force. Towards the end of the project, our modeling, control, and experimental methods were extended to truss-like structures. An important extension of the work was tuning of beam-type MEMS …
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[/table]

[/td][/tr]
[tr][td=2,1]Feasibility Investigation into Strengthening of Timber Bridge Stringers[/td][td]
MAY 2007
[/td][td]
142 pages
[/td][/tr]
[tr][td=5,1]Authors: Anthony J. Lamanna; Arda Akbiyik; James C. Ray; Gerardo I. Velazquez; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS GEOTECHNICAL AND STRUCTURES LAB [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The majority of timber bridges in the United States are nearing the end of their service life. They exhibit several types of damage, which occurs in their structural elements such as timber stringers. The most commonly encountered damage type in timber stringers in bridge structures is horizontal splits. Researchers investigated the feasibility of repairing timber stringers that showed signs of horizontal splitting along the length of the member. Timber stringer …
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[/table]

[/td][/tr]
[tr][td=2,1]FEM Modeling of Guided Wave Behavior in Integrally Stiffened Plate Structures[/td][td]
APR 2007
[/td][td]
12 pages
[/td][/tr]
[tr][td=5,1]Authors: Steve A. Martin; Kumar V. Jata; NDE COMPUTATIONAL CONSULTANTS DUBLIN OH [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Structural health monitoring (SHM) technologies, which use integrated sensing for damage detection, are expected to improve system reliability, availability, and operational cost. Guided waves can propagate great distances while experiencing low attenuation. They have been successfully used for damage detection in structures of relatively low geometric complexity such as plates and cylindrical pipes. The use of guided waves for this purpose becomes increasingly difficult as the geometric complexity of the …
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[/table]

[/td][/tr]
[tr][td=2,1]Thermo-mechanical Analysis of Ground-based Directed Energy Weapons on Satellites and Intercontinental Ballistic Missiles[/td][td]
SEP 2006
[/td][td]
122 pages
[/td][/tr]
[tr][td=5,1]Authors: Georgios Mantzouris; NAVAL POSTGRADUATE SCHOOL MONTEREY CA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Thermo mechanical modeling and simulation of a satellite and intercontinental ballistic missile assumes importance due to the increased interest in assessing the potential of such attacks. Effective and innovative methods are sought in assessing the structural integrity of such structural components. In this study, we present modeling and simulation aspects of two generic models loaded by high energy laser beam. We present an application of MSC software in modeling thermo-mechanical …
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[/table]

[/td][/tr]
[tr][td=2,1]State of the Art and Future Trends in the Development of Thermal Barrier Coating Systems[/td][td]
01-May-2006
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Prakash C Patnaik; XIAO HUANG; Jogender Singh; NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO)
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Thermal barrier coating (TBC) systems are the most effective means of protecting structural components from damage caused by excessive temperature and corrosive/erosive environments. The applications for TBCs range from gas turbines and power generators to space and military equipment. As the durability and performance of high temperature components rely more and more on TBCs, the capability of these coatings has become an important variable in the design and development of …
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[/table]

[/td][/tr]
[tr][td=2,1]Development of a Novel, Passively Deployed Roll-Out Solar Array[/td][td]
MAR 2006
[/td][td]
10 pages
[/td][/tr]
[tr][td=5,1]Authors: Douglas Campbell; Rory Barrett; Mark S. Lake; Larry Adams; Erik Abramson; Mark R. Scherbarth; Jeffry S. Welsh; Gregg Freebury; Neal Beidleman; Jamie Abbot; COMPOSITE TECHNOLOGY DEVELOPMENT INC LAFAYETTE CO [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Advanced solar arrays capable of generating greater than 50 kW of total power, at power densities greater than 250 W/kg, are required for many future Air Force missions. The largest heritage systems are limited to less than 15 kW of total power, at roughly 50 W/kg. The Roll Out and Passively Deployed Array (RAPDAR) design will demonstrate the feasibility of 50 kW, 250 W/kg-class solar array systems through an innovative …
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[/table]

[/td][/tr]
[tr][td=2,1]Failure of Ductile Materials and Components at High Rates of Loading[/td][td]
16 SEP 2005
[/td][td]
9 pages
[/td][/tr]
[tr][td=5,1]Authors: L. B. Freund; BROWN UNIV PROVIDENCE RI DIV OF ENGINEERING [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The report summarizes progress in understanding plastic strain localization leading to fracture and fragmentation as it occurs in ductile structural components, primarily metals, and on the role of elastomer coatings in suppressing plastic strain localization. The main finding is that the elastomer becomes effective when the bifurcation strain of the ductile metal at which necks begin here’s this or to form is roughly comparable to the strain at which the …
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[/table]

[/td][/tr]
[tr][td=2,1]A New Space Robot End-Effector for On-Orbit Reflector Assembly[/td][td]
13 JUL 2005
[/td][td]
8 pages
[/td][/tr]
[tr][td=5,1]Authors: Shin-ichiro Nishida; Hisashi Hirabayashi; Tsuneo Yoshikawa; JAPAN AEROSPACE EXPLORATION AGENCY CHOFU (JAPAN) ADVANCED SPACE TECHNOLOGY RESEARCH GROUP [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
In Earth orbit, astronomical observations are possible, free from absorption or disturbances by the Earth’s atmosphere. Therefore, some large space telescopes and large space radio telescopes are planned for the future. Launch vehicle payload bay diameters impose severe restrictions on the sizes of these telescopes, and so, structures larger than the payload bay have to be deployed or assembled in orbit. Structures assembled in orbit may have a finer surface …
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[/table]

[/td][/tr]
[tr][td=2,1]Design and Ground-Testing of an Inflatable-Rigidizable Structure Experiment in Preparation for Space Flight[/td][td]
JUN 2005
[/td][td]
114 pages
[/td][/tr]
[tr][td=5,1]Authors: Chad R. Moeller; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
As the demand for larger space structures increases, complications arise including physical dimensions, weight, and launch costs. These constraints have forced the space industry to look for smaller, more lightweight, and cost-effective solutions. Future antennas, solar sails, sun shields, and other structures have the potential to be exponentially larger than their launch envelopes. Current research in this area is focused on the use of inflatable, rigidizable structures to reduce payload …
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[/table]

[/td][/tr]
[tr][td=2,1]Electrochemical Study of Corrosion Phenomena in Zirconium Alloys[/td][td]
JUN 2005
[/td][td]
134 pages
[/td][/tr]
[tr][td=5,1]Authors: Nicole M. Treeman; MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF NUCLEAR ENGINEERING [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Shadow corrosion of zirconium alloy fuel cladding in BWR environments, the phenomenon in which accelerated corrosion is experienced when the cladding surface is in close proximity to other metals, has become a potentially life-limiting issue for BWR fuel. Recent results from experimentation at MIT, Halden, and Studvik suggest that a galvanic coupling drives the phenomenon between the cladding and the adjacent material. However, the actual processes involved are not understood. …
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[/table]

[/td][/tr]
[tr][td=2,1]Use of Epidermolysis Bullosa Biomarkers in Models of Vesicant Injury[/td][td]
JUN 2005
[/td][td]
39 pages
[/td][/tr]
[tr][td=5,1]Authors: Donald R. Gerecke; Carol L. Sabourin; RUTGERS - THE STATE UNIV NEW BRUNSWICKNJ [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The chemical warfare agent sulfur mustard (HD) produces a delayed inflammatory response followed by blister formation in skin of exposed individuals. There is a similarity between HD-induced skin injury and the skin disease Epidermolysis Bullosa (EB) in both the morphology of the damage and the structural components involved. Both HD-induced injury and EB are believed to involve matrix metalloproteinases (MMPs), which play key roles in the disruption of connective tissue …
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[/table]

[/td][/tr]
[tr][td=2,1]Reactive Hyperbranched Polymers as Toughening Processing Aids for Composite Matrices[/td][td]
09 MAY 2005
[/td][td]
11 pages
[/td][/tr]
[tr][td=5,1]Authors: Patrick T. Mather; CONNECTICUT UNIV STORRS DEPT OF POLYMER PROGRAM AND CHEMICAL ENGINEERING [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The overall objective of this proposal is to develop and study for transition new low viscosity thermoset additives - hyperbranched polymers (HBPs) - for use in composites needed for emerging space-based Air Force applications. Specifically, we are studying and developing hyperbranched polymers for use as a new low-viscosity thermoset/thermoplastic additives, which have enormouos applications in rigid spacecraft structures. The particular projects included: (i) Modification of high performance thermoplastics by non-reactive …
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[/table]

[/td][/tr]
[tr][td=2,1]RF MEMS Improvement Program[/td][td]
MAR 2005
[/td][td]
9 pages
[/td][/tr]
[tr][td=5,1]Authors: Eliot D. Cohen; L-3 GOVERNMENT SERVICES INC ROME NY [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The work performed under this task was in support of DARPA Special Projects Office (SPO) Micro Electro Mechanical Systems (MEMS) switch development efforts. The MEMS programs supported were developed and supervised by various DARPA/SPO program managers. During 2000 and early 2001, it became increasingly apparent that the RF MEMS switches and phase shifters being fabricated by all of the contractors working under various DARPA/SPO programs, that were directed toward using …
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[/table]

[/td][/tr]
[tr][td=2,1]Analysing Blast and Fragment Penetration Effects on Composite Helicopter Structures[/td][td]
MAR 2005
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: C. van’t Hof; K. Herlaar; J. M. Luyten; M. J. van der Jagt; TNO DEFENSE SECURITY AND SAFETY RIJSWIJK (NETHERLANDS)
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Sandwich structures become increasingly important as structural parts in helicopters. This does not only have effect on the way of construction but also on the vulnerability of the helicopter. The last decades the threat of helicopters has increased in military circumstances. Consequently the helicopters will be exposed to weapon effects like high blast loads and fragment impact more frequently. Moreover the blast load becomes more important because the threat comes …
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[/table]

[/td][/tr]
[tr][td=2,1]Numerical Optimization of Multifunctional Components[/td][td]
17 AUG 2004
[/td][td]
9 pages
[/td][/tr]
[tr][td=5,1]Authors: Anthony T. Patera; MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF MECHANICAL ENGINEERING [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Engineering components are increasingly complex in composition and structure and increasingly multifunctional. Indeed, it is only through complexity and multifunctionality that the defense industry can satisfy the stringent performance requirements associated with critical defense applications. However, these complex, multifunctional systems no longer admit intuitive analysis of trade-off considerations. Industries must pursue optimization, including optimal choice of material, configuration, and deployment to realize the potential of these new approaches. The essential …
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[/table]

[/td][/tr]
[tr][td=2,1]Future Years Defense Program (FYDP) Structure[/td][td]
APR 2004
[/td][td]
2161 pages
[/td][/tr]
[tr][td=5,1]Authors: OFFICE OF THE SECRETARY OF DEFENSE WASHINGTON DC DIRECTOR PROGRAM ANALYSIS AND EVALUATION [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This Handbook lists the alphanumeric codes and titles of the two principal structural elements of the FYDP: Program Element (PE) and Resource Identification Code (RIC). The Handbook also contains definitions for FYDP PEs and the alphanumeric codes for the DoD Components that have resources in the FYDP. These Component codes are subsidiary field in the PE codes. In addition, the Handbook states some of the major roles that guide the …
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[/table]

[/td][/tr]
[tr][td=2,1]Tri-Directional Seismic Analysis of an Unreinforced Masonry Building with Flexible Diaphragms[/td][td]
APR 2004
[/td][td]
91 pages
[/td][/tr]
[tr][td=5,1]Authors: Steven C. Sweeney; Matthew A. Horney; Sarah L. Orton; CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN IL [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
To understand the susceptibility that buildings with flexible diaphragm systems have to earthquakes, their seismic response to tri-axial base motions is assessed. The research centers on a tri-directional analytical study of a two-story half-scale unreinforced masonry (URM) structure. The study investigates the effect of tri-axial base motions on response of the structure. It determines how individual component behavior, such as a pier or floor diaphragm, affects the behavior of the …
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[/table]

[/td][/tr]
[tr][td=2,1]Neural Composite Materials[/td][td]
30 DEC 2003
[/td][td]
15 pages
[/td][/tr]
[tr][td=5,1]Authors: Mannur J. Sundaresan; Mark J. Schmiz; NORTH CAROLINA UNIV AT GREENSBORO [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
An embeddable structural health monitoring system has been developed to measure acoustic emission signals generated by incipient damage in Army structures. The structural health monitoring system is built upon two parallel approaches that mimic signal processing in biological nerve cells. One approach uses a continuous sensor formed by a series connection of piezoelectric sensor nodes and a local signal processor to detect damage. The other uses an array type of …
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[/table]

[/td][/tr]
[tr][td=2,1]Signal Processing Applied to the Dolphin-Based Sonar System[/td][td]
01-Sep-2003
[/td][td]
8 pages
[/td][/tr]
[tr][td=5,1]Authors: Dorian Houser; Steve Martin; Mike Pillips; Eric Bauer; Tim Herrin; Patrick Moore; BIOMIMETICA SANTEE CA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The bottlenose dolphin has evolved a unique system of biosonar, or echolocation, that allows it to exploit a visually limited littoral niche. The effectiveness of dolphin echolocation at finding and identifying submerged objects is unsurpassed by man-made hardware systems built for similar tasks. It has become a model system from which to draw hardware and signal processing design concepts and is the basis for the development of biomimetic mine-hunting systems …
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[/table]

[/td][/tr]
[tr][td=2,1]Air Force Fast Center for Lightweight Structural Materials and Processing[/td][td]
14 AUG 2003
[/td][td]
106 pages
[/td][/tr]
[tr][td=5,1]Authors: Paul O. Biney; Jianren Zhou; Laura Carson; PRAIRIE VIEW A AND M UNIV TX [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The sixth year of the FAST Center at Prairie View A&M University was mainly devoted to the continuation of research in polymer processing and characterization, and mechanical and microstructural characterization, and a study of environmental effects on the properties of composites.
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[/table]

[/td][/tr]
[tr][td=2,1]Focused Topical Session: Oxide/Oxide Ceramics and Composites Meeting; Annual Cocoa Beach Conference (27th) and Exposition on Advanced Ceramics and Composites Held in Cocoa Beach on 26-31 January 2003[/td][td]
15 JUN 2003
[/td][td]
170 pages
[/td][/tr]
[tr][td=5,1]Authors: A. Sayir; CASE WESTERN RESERVE UNIV CLEVELAND OH [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Advanced materials are usually composite materials for structural components to carry loads and/or functional components to accomplish specific tasks. Oxide ceramic, oxide fiber reinforced ceramic composites and in-situ composites stand out as those which provide best properties in oxidizing environment. The oxide materials are essential to withstand severe loads in the oxidizing environment a severe conditions. The oxide ceramics and oxide composites is a crucial research area because it’s importance …
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[/table]

[/td][/tr]
[tr][td=2,1]Environmentally Assisted Cracking Properties of AA7249 Extrusions for Aerospace Applications[/td][td]
02 MAY 2003
[/td][td]
64 pages
[/td][/tr]
[tr][td=5,1]Authors: Kristen L. Deffenbaugh; NAVAL ACADEMY ANNAPOLIS MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The Development of new military aerospace platforms is costly and time-consuming. Therefore, it is important that current platforms maximize their service lifetime. Exposure to environmental elements, particularly seawater, is especially troublesome to the Navy because it shortens required aircraft lifetime. The P-3C is an example of a versatile aircraft whose lifetime has been extended to the point that environmental attacks is now becoming a significant concern. Structural components in the …
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[/table]

[/td][/tr]
[tr][td=2,1]iMAST Quarterly, Number 4, 2003[/td][td]
Jan-2003
[/td][td]
9 pages
[/td][/tr]
[tr][td=5,1]Authors: APPLIED RESEARCH LABORATORY STATE COLLEGE PA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Collarless construction techniques are briefly discussed in this quarterly. The feature article focuses on planning and designing a shipbuilding facility. Electric Boat Corporation vision for improving the fabrication of major submarine sections at its Quonset Point, RI, facility. This vision includes not only the investment in the new buildings and facilities, but includes a commitment to the up front planning required to incorporate process improvements and define future operational details. …
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[/table]

[/td][/tr]
[tr][td=2,1]Idempotent Vector Design for Standard Assembly of Biobricks[/td][td]
2003
[/td][td]
12 pages
[/td][/tr]
[tr][td=5,1]Authors: Tom Knight; MASSACHUSETTS INST OF TECH CAMBRIDGE ARTIFICIAL INTELLIGENCE LAB [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The lack of standardization in assembly techniques for DNA sequences forces each DNA assembly reaction to be both an experimental tool for addressing the current research topic, and an experiment in and of itself. One of our goals is to replace this ad hoc experimental design with a set of standard and reliable engineering mechanisms to remove much of the tedium and surprise during assembly of genetic components into larger …
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[/table]

[/td][/tr]
[tr][td=2,1]Damping and Stiffness Enhancement in Composite Systems with Carbon Nanotubes Films[/td][td]
2003
[/td][td]
6 pages
[/td][/tr]
[tr][td=5,1]Authors: E. A. Lass; N. A. Koratkar; P. M. Ajayan; B. Q. Wei; P. Keblinski; RENSSELAER POLYTECHNIC INST TROY NY DEPT OF MECHANICAL AEROSPACE AND NUCLEARENGINEERING [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Structural damping is an essential design parameter for many engineering applications. We demonstrate here the potential for the use of multi-walled carbon nanotube films in structural systems where vibrational energy dissipation is important. These films can provide a light weight, minimally intrusive alternative to conventional damping materials such as visco-elastic polymers. In addition, because of their multifaceted properties, damping materials utilizing carbon nanotubes are expected to be superior to traditional …
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[/table]

[/td][/tr]
[tr][td=2,1]Long-Term Survival of Enteric Microorganisms in Frozen Wastewater[/td][td]
OCT 2002
[/td][td]
64 pages
[/td][/tr]
[tr][td=5,1]Authors: Louise V. Parker; C. J. Martel; ENGINEER RESEARCH AND DEVELOPMENT CENTER HANOVER NH COLD REGIONS RESEARCH AND ENGINEERING LAB [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Microorganisms that are found in domestic wastewater and that can cause illness in humans include bacteria viruses protozoan cysts and helminth ova. This literature review attempts to determine whether organisms contained in a frozen sewage bulb in the Antarctic ice would survive for decades. This review briefly examines the structural differences between these organisms; examines the susceptibility of these organisms to chilling freezing thawing and frozen storage and the effect …
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[/table]

[/td][/tr]
[tr][td=2,1]Workshop on Benchmark Experiments in Contact Mechanics as Applied to Gas Turbine Engines Held in West Palm Beach on 12-13 May 2002[/td][td]
02 SEP 2002
[/td][td]
11 pages
[/td][/tr]
[tr][td=5,1]Authors: Jerry H. Griffin; D. Ewins; CARNEGIE-MELLON UNIV PITTSBURGH PA DEPT OF MECHANICAL ENGINEERING [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
An international workshop on benchmarks in contact mechanics and friction damping was held on the 12th and 13th of May in conjunction with the DoD sponsored HCP Conference in West Palm Beach, FL. The workshop was organized by Dr. J.H. Griffin, a Professor at Carnegie Mellon University in Pittsburgh, and Dr. E. Ewins, a Professor at Imperial College in London. The workshop was a follow-on to a workshop held last …
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[/table]

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[tr][td=2,1]Induction Bonding for Structural Composite Tubes[/td][td]
SEP 2002
[/td][td]
48 pages
[/td][/tr]
[tr][td=5,1]Authors: Eric D. Wetzel; William A. Spurgeon; Christian J. Yungwirth; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD WEAPONS AND MATERIALS RESEARCH DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Large structural composite tubes, prototype components for a proposed U.S. Navy application, are bonded by induction curing of an engineering adhesive. Magnetic powder is used as the susceptor material and is directly incorporated into the adhesive prior to processing. Different induction power supplies, coil designs, and adhesive formulations are investigated. Final demonstration runs bond 9-in-long, 3-in-diameter axisymmetric bondlines in 15 min. These results demonstrate for the first time the successful …
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[/table]

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[tr][td=2,1]Corrosion-Induced Multiple Site Damage[/td][td]
31 JUL 2002
[/td][td]
12 pages
[/td][/tr]
[tr][td=5,1]Authors: Karl Sieradzki; Dusan Krajcinovic; ARIZONA STATE UNIV TEMPE DEPT OF MECHANICAL AND AEROSPACE ENGINEERING [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This research focuses on three key issues related to the nucleation and growth of corrosion fatigue cracks in fuselage fastener holes. (1) The identification of the precise mechanisms responsible for corrosion damage in Al alloy 2024-T3 in the bare, clad, and painted condition. (2) The transitional behavior from corrosion damage to fatigue crack growth nucleation and subsequent short crack growth, and (3) a real-time statistically based model of damage evolution …
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[/table]

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[tr][td=2,1]Adipocyte Differentiation: Relationship to Breast Cancer[/td][td]
APR 2002
[/td][td]
26 pages
[/td][/tr]
[tr][td=5,1]Authors: Berdar E. Bulun; ILLINOIS UNIV AT CHICAGO [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
We hypothesize that breast malignant epithelial cells interact with surrounding stroma to provide biochemical and structural support for tumor tissue. Specifically, malignant epithelial cells block the differentiation of surrounding adipose fibroblasts through cytokines. Additional epithelial factors strikingly induce aromatase expression in these undifferentiated fibroblasts via switching aromatase gene promoter use from the physiologically used promoter 1.4 to aberrantly activated promoter II. During this entire grant period, we have accomplished all …
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[/table]

[/td][/tr]
[tr][td=2,1]Effects of Shot-Peening on High Cycle Fretting Fatigue Behavior of Ti- 6Al-4V[/td][td]
26 MAR 2002
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Halil I. Yuksel; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Effects of Shot-peening on High Cycle Fretting Fatigue behavior of Ti-6Al-4V were investigated. Experiments were performed with 6.35 mm thick specimens which provided S/N curves. After the tests, it was observed that the specimens failed near the trailing edge of contact. Scanning Electron Microscopy showed that cracks initiated on the contact surface for 6.35 mm, and at the depth of specimen ranging from 200 to 300 microns for 3.81 mm …
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[/table]

[/td][/tr]
[tr][td=2,1]Investigating the Deformation and Failure Mechanisms in Bi-Material Systems Under Tension[/td][td]
11 MAR 2002
[/td][td]
3 pages
[/td][/tr]
[tr][td=5,1]Authors: C. T. Liu; Fu-Pen Chiang; AIR FORCE RESEARCH LAB EDWARDS AFB CA SPACE AND MISSILE PROPULSION DIV [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Bonded sandwich laminates are being used widely in various industries. They have been successfully used in aircraft and space structures, pipes, chemical tanks, ship hulls, and in other structural applications in which a high strength-to-weight ratio is a desirable feature. Joining structural components with adhesives provides a number of advantages. Bonding does not require rivet holes, which are stress raisers and may cause premature failure either under static or fatigue …
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[/table]

[/td][/tr]
[tr][td=2,1]Innovative Local-Global Methods for Wing Structural Design[/td][td]
27 FEB 2002
[/td][td]
45 pages
[/td][/tr]
[tr][td=5,1]Authors: Zafer Gurdal; VIRGINIA POLYTECHNIC INST AND STATE UNIV BLACKSBURG DEPT OF AEROSPACE AND OCEAN ENGINEERING [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Only a couple months have elapsed since the last annual report, so there is nothing significant to report for those intervening months. The technical accomplishments and outcomes from the grant support have been documented in the three annual reports, which are attached as appendices. We provided here only summary statistics for the three year period, and a summary of the most significant accomplishments.
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[/table]

[/td][/tr]
[tr][td=2,1]Innovative Local-Global Methods for Aircraft Structural Design[/td][td]
FEB 2002
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5 pages
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[tr][td=5,1]Authors: Rafael Haftka; FLORIDA UNIV GAINESVILLE DEPT OF AEROSPACE ENGINEERING MECHANICS AND ENGINEERING SCIENCE [/td][/tr]
[tr][td=6,1][table=98%]
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Global-local design of large structures presents a great challenge to structural designers to coordinate the optimization of major structural components (wing or fuselage) with optimization of individual panel details. Moreover, the continuity of the adjacent designs in terms of their geometric and material variables presents a serious manufacturing difficulty for the large structure. The research developed methodology, computational infrastructure and algorithms with sound theoretical basis to extend industrial ad hoc …
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[tr][td=2,1]SEISMIC-ACOUSTIC HYBRID SENSOR & ITS APPLICATIONS,[/td][td]
FEB 2002
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[tr][td=5,1]Authors: JOHN SLEDGE; TEST WING ( 46TH) EGLIN AFB FL
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[tr][td=6,1][table=98%]
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(U) THIS PAPER ADDRESSES THE NEED FOR INSTRUMENTATION TO GATHER SEISMIC-ACOUSTIC SIGNATURES UNDER UNUSUAL CONDITIONS REQUIRING THE USE OF LOW COST, SIMPLE DESIGN, ROBUST SENSORS. IN SOME INSTANCES THE SENSORS MUST ADAPT AND MOLD TO THE ENVIRONMENTAL MEDIUM TO PROVIDE PROPER COUPLING FOR DATA COLLECTION PURPOSES. THE PAPER EXPLAINS HOW THE IDEA OF A HYBRID SEISMIC-ACOUSTIC SENSOR ORIGINATED AND INITIALLY IMPLEMENTED. TESTING OF FIELD EVENTS ARE REPORTED TO DEMONSTRATE THE …
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[tr][td=2,1]SHAPE BIASED LOW POWER SPIN DEPENDENT TUNNELING MAGNETIC FIELD SENSORS,[/td][td]
FEB 2002
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[tr][td=5,1]Authors: Mark Tondra; Zhenghong Qian; Dexin Wang; Cathy Nordman; JOHN ANDERSON; ALBRECHT JANDER; BOB SINCLAIR; JAMES DAUGHTON; NVE CORP EDEN PRAIRIE MN
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[tr][td=6,1][table=98%]
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(U) THIS PAPER ADDRESSES THE USE OF SPIN DEPENDENT TUNNELING (SDT) DEVICES AS CANDIDATES FOR INCLUSION IN A NUMBER OF UNATTENDED GROUND SENSOR APPLICATIONS. ONE APPROACH TO THEIR USE IS SHAPE BIASING, WHICH MEANS THAT THE PHYSICAL LAYOUT OF THE SDT SENSING ELEMENTS IS SUCH THAT THE MAGNETIZATION OF A SENSING FILE IS CORRECT EVEN WHEN NO BIASING FIELD IS APPLIED. THE AUTHORS DECLARE THAT SENSORS HAVE BEEN FABRICATED USING …
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[tr][td=2,1]Alleviation of Buffet on the Twin-Tail Assemblies of High-Performance Aircraft (aasert)[/td][td]
31 OCT 2001
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19 pages
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[tr][td=5,1]Authors: Ali H. Nayfeh; Dean T. Mook; VIRGINIA POLYTECHNIC INST AND STATE UNIV BLACKSBURG DEPT OF ENGINEERING SCIENCE AND MECHANICS [/td][/tr]
[tr][td=6,1][table=98%]
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We carried out experiments on a structural dynamic model of the twin- tail assembly of the F-15 fighter built by Professor Sathya Hanagud of Georgia Tech. The model was placed on a 250 lb shaker and subjected to a principal parametric excitation. We fixed the excitation amplitude and varied the excitation frequency around 18 Hz. For the same excitation amplitude and frequency, we found five possible responses depending on the …
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[tr][td=2,1]Computational Mechanics of the Full-Scale and Model-Scale Roll-On, Roll- Off (RORO) Stern Ramp and Experimental Modal Analysis of the Model-Scale Ramp and Support[/td][td]
JUN 2001
[/td][td]
173 pages
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[tr][td=5,1]Authors: James E. Buckley; NAVAL POSTGRADUATE SCHOOL MONTEREY CA [/td][/tr]
[tr][td=6,1][table=98%]
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It has been determined that current stern ramp designs lack adequate structural integrity during Sea State Three roll-on, roll-off (RORO) operations. Therefore, passive isolation between the stern ramp and the roll-on, roll-off discharge facility (RRDF) is being investigated as a means of reducing ramp stress levels. A coupled hydro-structural simulation model of the combined ship- ramp-RRDF is under development in order to evaluate candidate isolator technologies. This thesis documents a …
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[tr][td=15%]Total Results: 1360
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[tr][td=15%]Total Results: 2021
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[tr][td]Sort by:[/td][td=80]Title[/td][td=80]Date [/td][td=80]Pages[/td][td=60]Display:[/td][td=150]
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[tr][td=2,1]Autonomous Mobility Applique System (AMAS)
[/td][td]
08 Nov 2011
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19 pages
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[tr][td=5,1]Authors: Bernard Theisen; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI [/td][/tr]
[tr][td=6,1][table=98%]
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AMAS will provide scalable autonomy in a single material solution agnostic of vehicle. For the AMAS JCTD, AMAS will be implemented in a vehicle specific By-wire kit that would provide the electronically controlled subsystems and interface for the common Autonomy Kit. The Autonomy kit, along with the Bywire kit, would provide Leader/Follower, waypoint navigation and advanced Convoy behaviors. The AMAS JCTD will also address defining an open architecture for future …
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[tr][td=2,1]Dynamo: A Model Transition Framework for Dynamic Stability Control and Body Mass Manipulation[/td][td]
Nov 2011
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28 pages
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[tr][td=5,1]Authors: Brian Yamauchi; IROBOT CORP BEDFORD MA [/td][/tr]
[tr][td=6,1][table=98%]
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Ground robots, such as the iRobot PackBot, have saved hundreds of lives in Iraq and Afghanistan by helping soldiers safely inspect and disarm improvised explosive devices (IEDs) (Figure 1). However, even state-of-the-art robot control systems fail to approach the adaptive, versatile mobility demonstrated by humans and animals on an everyday basis. In order to extend the applicability of ground robots to a wider range of missions, fundamental advances are needed …
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[tr][td=2,1]Real-Time Driving Simulation of Magneto-Rheological Active Damper Stryker Suspension[/td][td]
24 Oct 2011
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10 pages
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[tr][td=5,1]Authors: Michael G Megiveron; Amandeep Singh; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI [/td][/tr]
[tr][td=6,1][table=98%]
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Real-time driving simulations are an important tool for verifying vehicle and vehicle component designs with a driver in the loop. They not only provide a cost effective solution but also an ability to verify designs in a safe and controlled operating environment. A real-time driving experiment has been developed for Stryker to compare the ride and handling performance of a baseline passive suspension to that of a Magneto-Rheological (MR) semi-active …
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[tr][td=2,1]Advanced Vehicle Power Technology Alliance Technical Workshop and Operations Report[/td][td]
05 Oct 2011
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74 pages
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[tr][td=5,1]Authors: Grace Bochenek; Patrick Davis; Steven Eick; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI [/td][/tr]
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The Advanced Vehicle Power Technology Alliance (AVPTA) between the Department of Energy (DOE) and the Department of the Army (DA) underscores the urgency for energy security; in particular, an emphasis on developing advanced technologies that enable military ground vehicles to become significantly more energy efficient. Individually and collaboratively, the DOE and DA have a long history of successfully developing innovative vehicle technologies. This new alliance will accelerate the generation of …
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[tr][td=2,1]Effective Task Assignment and Motion Planning for Complex UAV Operations[/td][td]
Sep 2011
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38 pages
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[tr][td=5,1]Authors: Tal Y Shima; TECHNION - ISRAEL INST OF TECH HAIFA FACULTY OF AEROSPACE ENGINEERING [/td][/tr]
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This two years research effort was concerned with the efficient solution of combinatorial optimization problems that arise in the task assignment and motion planning of unmanned aerial vehicles in complex operations. In the first year of the research we have concentrated on the high level task assignment problem. A genetic algorithm that utilizes process algebra for coding of solution chromosomes and for defining evolutionary based operators was presented. The algorithm …
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[tr][td=2,1]Analysis and Load Rating of Pre-flex Composite Beams[/td][td]
Sep 2011
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89 pages
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[tr][td=5,1]Authors: Genock Portela; Ulises Barajas; Jose A Albarran-Garcia; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS GEOTECHNICAL AND STRUCTURES LAB [/td][/tr]
[tr][td=6,1][table=98%]
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This report describes a methodology for analysis and load rating of pre-flex beams subjected to vehicular and military loads. The methodology is based on service limits for different loading stages. The analysis is divided into an initial stage of pre-flexion of the non-composite beam, followed by the release and subsequent states of loading of a composite beam. Creep and shrinkage effects are considered in the analysis adopting Giacomo and Maninni …
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[tr][td=2,1]Design Requirements for Weaponizing Man-Portable UAS in Support of Counter-Sniper Operations[/td][td]
Sep 2011
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125 pages
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[tr][td=5,1]Authors: Derek J Snyder; NAVAL POSTGRADUATE SCHOOL MONTEREY CA [/td][/tr]
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The sniper is a highly successful tool used by the enemy to create both physical and psychological effects on U.S. and Coalition forces. A single enemy sniper can pin down an entire company-sized element for an extended period of time, resulting in measurable disruptions in operations. This threat is as old as the rifle itself but has been somewhat shadowed by the proliferation of the Improvised Explosive Device (IED) over …
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[tr][td=2,1]The Use of Autonomous Vehicles for Spatially Measuring Mean Velocity Profiles in Rivers and Estuaries[/td][td]
Sep 2011
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51 pages
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[tr][td=5,1]Authors: Christopher K Tuggle; NAVAL POSTGRADUATE SCHOOL MONTEREY CA [/td][/tr]
[tr][td=6,1][table=98%]
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Autonomous vehicles (AVs) are commonly used in oceanic and more recently estuarine and riverine environments because they are small, versatile, efficient, moving platforms equipped with a suite of instruments for measuring environmental conditions. However, moving vessel observations, particularly those associated with Acoustic Doppler Current Profiler (ADCP) measurements, can be problematic owing to instrument noise, flow fluctuations, and spatial variability. A range of ADCPs manufactured by different companies were integrated onto …
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[tr][td=2,1]A Hybrid Approach to Tactical Vehicles[/td][td]
Sep 2011
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123 pages
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[tr][td=5,1]Authors: Mark D Fingerholz; NAVAL POSTGRADUATE SCHOOL MONTEREY CA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Combat operations are suffering from unnecessarily high fuel demand which degrades capability, exposes support operations to greater risk than necessary, and increases operations and support costs. This thesis describes the current suite of hybrid drivetrain technologies, evaluates their effectiveness in a tactical environment, and suggests an architecture that reduces fuel consumption while maintaining performance against mobility, transportability, survivability, and safety requirements. This thesis includes a comprehensive analysis of nine power …
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[tr][td=2,1]Tracked Vehicle Dynamics Modeling and Simulation Methodology, with Control, using RecurDyn Software Package[/td][td]
Sep 2011
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13 pages
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[tr][td=5,1]Authors: Joseph Raymond; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI [/td][/tr]
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Many Army vehicles require tracks in order to meet the tough mobility requirements for the Army mission profile. Modeling and Simulation (M&S) provides a large cost-savings and offers a quick turn-around when addressing vehicle performance issues. Once a baseline model is built for a given system, the model can be changed quickly to address different load or usage profiles and to determine the overall affect on the vehicle and its …
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[tr][td=2,1]Scalable Power-Component Models for Concept Testing[/td][td]
17 AUG 2011
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9 pages
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[tr][td=5,1]Authors: Michael S. Mazzola; G. M. Molen; Stephen Phillips; Matthew Young; Charles Billberry; Angela Card; James Gafford; Denise Kramer; Michael Pozolo; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI [/td][/tr]
[tr][td=6,1][table=98%]
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This paper describes next generation modeling tools to solve a basic problem of concept analysis, which is the lack of component models that realistically estimate the performance of technology that has yet to be fully reduced to specific products. Three important classes of electric power components essential to future Army vehicles are addressed: integrated electric machines, battery energy storage, and traction motor drives. Behavior models are delivered in a common …
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[tr][td=2,1]Force Projection Technology Overview[/td][td]
12 Aug 2011
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9 pages
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[tr][td=5,1]Authors: Percy Kirklin; Frederick O Balling; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI [/td][/tr]
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The Force Projection Technology (FPT) Mission serves as the DoD responsible agent for all ground fuels and lubricants specifications. It is the lead lab for water supply and wastewater treatment. It is also the software national depository authority for the US Army on military load classification for bridges, ferries, rafts, and vehicles. They execute total life cycle engineering for: fuel handing and quality surveillance equipment, water purifications, handling and quality …
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[tr][td=2,1]Sensitivity Studies of Particle Emissions and Transport Around a Moving Vehicle[/td][td]
09 AUG 2011
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12 pages
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[tr][td=5,1]Authors: Xiaoling Tong; Edward A. Luke; Robert E. Smith; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI [/td][/tr]
[tr][td=6,1][table=98%]
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The paper will provide representative simulations of particle transport around a vehicle in order to investigate some of the issues related to the accurate prediction of emission and transport of particles induced by a moving vehicle with a transverse blowing wind. Special treatments in boundary conditions and wall law function are discussed and applied to maintain the shape of atmospheric boundary layer wind velocity profile. For the vehicle, we adopt …
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[tr][td=2,1]Development of High Fidelity Mobility Simulation of an Autonomous Vehicle in an Off-Road Scenario Using Integrated Sensor, Controller, and Multi-Body Dynamics[/td][td]
04 Aug 2011
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28 pages
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[tr][td=5,1]Authors: Jayakumar; Smith; Ross; Jategaonkar; Konarzewski; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI [/td][/tr]
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[tr][td=2,1]An Advanced Battery Management System for Lithium Ion Batteries[/td][td]
AUG 2011
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8 pages
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[tr][td=5,1]Authors: Bruce Pilvelait; Carlos Rentel; Gregory L. Plett; Mike Marcel; Dave Carmen; CREARE INC HANOVER NH [/td][/tr]
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This paper describes the development of a Battery Management System (BMS) State of Charge/Health (SOC/SOH) algorithm that was developed and proven for three different lithium ion based cell chemistries (nanophosphate, lithium manganese oxide, lithium iron phosphate). In addition, a universal BMS architecture based on this algorithm was developed that can support other chemistries, capacities, and formats. Algorithm performance was compared to actual data in the laboratory environment and also to …
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[tr][td=2,1]A User-Friendly Tool for Evaluating the Thermal Response of High Power Battery Packaging Alternatives[/td][td]
AUG 2011
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10 pages
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[tr][td=5,1]Authors: Stanley Jones; John Mendoza; George Frazier; Sonya Zanardelli; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI [/td][/tr]
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The SAIC Battery Thermal Solver is a tool that allows for the evaluation of the thermal response under a variety of cell types, loading conditions and packaging alternatives for the battery designer, manufacturer, or system integrator. Developed with a user-friendly interface, the Battery Thermal Solver allows for a number of simulations to be performed. This paper discusses the capabilities of the Battery Thermal Solver Tool through a thorough discussion of …
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[tr][td=2,1]Select Papers. Volume 1[/td][td]
Aug 2011
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246 pages
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[tr][td=5,1]Authors: ARMY RESEARCH LAB ADELPHI MD [/td][/tr]
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The ARL Summer Student Research Symposium is an ARL Director s Award Program for all the students participating in various summer scholarship and contract activities across ARL. The goal of the program is to recognize and publicize exceptional achievements made by the students and their mentors in the support of Army science. All college undergraduate and graduate students receiving research appointments and conducting summer studies at ARL are automatically enrolled …
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[tr][td=2,1]Analysis of Air Breathing Hall-Effect Thruster (Preprint)[/td][td]
Aug 2011
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[tr][td=5,1]Authors: Leonid Pekker; Michael Keidar; ENGINEERING RESEARCH AND CONSULTING INC (ERC INC) EDWARDS AFB CA
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The principle idea of using air breathing electrical propulsion for a vehicle flying at orbital speed on the edge of Earth’s atmosphere is examined. In this paper, we present a simple model of a Hall Effect thruster in which the propellant is an ambient air. The required lengths of the thruster chamber, the magnetic fields, the thrust, and other parameters of an ideal air breathing Hall Effect thruster are calculated …
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[tr][td=2,1]Assessment and Quantification of Cumulative Impacts of Training and Land Management Practices on Military Installations[/td][td]
19 JUL 2011
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10 pages
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[tr][td=5,1]Authors: Paul Ayers; TENNESSEE UNIV KNOXVILLE [/td][/tr]
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[tr][td][/td][td]
Military vehicle maneuvers remove vegetation and increase the potential for soil erosion. Quantifying the vegetation removed during military maneuvers is needed to assist land managers in maintaining the environmental integrity of the training area. A terrain-vehicle impact model was used to predict terrain impacts (disturbed width and impact severity), based on vehicle properties, operating characteristics and soil strength properties. The cumulative impact width (CIW), a product of the disturbed width …
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[tr][td=2,1]Joint Assault Bridge[/td][td]
19 JUL 2011
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81 pages
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[tr][td=5,1]Authors: David W. Marck; Don Paskulovich; Donna Morgan; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI [/td][/tr]
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[tr][td][/td][td]
Conference Guidance: Purpose: To provide potential offerors program related information; To improve the development of a formal solicitation; To promote a Small Business subcontracting network; Conference is for informational purposes only. Our intent is to clearly communicate our strategy. Respond to your questions regarding the solicitation. Proposal shall be based on final RFP posted to TACOM website, including amendments.
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[tr][td=2,1]Lessons Learned in Performing Technology Readiness Assessment (TRA) for the Milestone (MS) B Review of an Acquisition Category (ACAT)1D Vehicle Program[/td][td]
18 JUL 2011
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7 pages
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[tr][td=5,1]Authors: Jerome Tzau; Anthony Dolan; Matt Withun; Richard Goetz; Brett Johnson; Johnathon Putrus; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
One of the biggest challenges in developing TRA is the determination of the critical technology elements (CTEs). This paper outlines a systematic process used to identify all potential technologies developed by the contractors during the Technology Development (TD) Phase and applies criteria for selection of CTEs. To reduce the subjectivity in the assessment, the relevant technical requirements for each CTE that are important to the customers will be established. These …
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[tr][td=2,1]Diagnostic Health Monitoring System Development for Army Vehicle Reliability[/td][td]
Jul 2011
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[tr][td=5,1]Authors: Douglas Adams; Tiffany DiPetta; David Loester; PURDUE UNIV LAFAYETTE IN
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Current maintenance schedules for ground vehicles are determined largely based on reliability predictions of a population of vehicles under anticipated operational loads. This approach leads to unnecessary maintenance and, in some cases, in-field failures depending on differences in the usage of individual vehicles. Condition-based maintenance is scheduled instead according to the condition of each vehicle to reduce the risk of failure and maintenance costs. However, on-board instrumentation for acquiring, processing, …
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[tr][td=2,1]Evaluation of Suppression of Hydroprocessed Renewable Jet (HRJ) Fuel Fires with Aqueous Film Forming Foam (AFFF)[/td][td]
Jul 2011
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54 pages
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[tr][td=5,1]Authors: Steven P Wells; Brent M Pickett; Howard T Mayfield; APPLIED RESEARCH ASSOCIATES INC TYNDALL AFB FL [/td][/tr]
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Bio-oil derived hydroprocessed renewable jet (HRJ) fuels are alternative fuels that are being evaluated for use in United States Air Force (USAF) aircraft and support equipment and vehicles (SE&V). As with any new weapons system or other type of potential fire threat, the fire protection safety risk to the first responder must be established. This program was designed to determine if Military Specification MIL-F-24385F (MIL-SPEC) Aqueous Film Forming Foam (AFFF) …
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[tr][td=2,1]Use of Mahalanobis Distance for Detecting Outliers and Outlier Clusters in Markedly Non-Normal Data: A Vehicular Traffic Example[/td][td]
JUN 2011
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60 pages
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[tr][td=5,1]Authors: Rik Warren; Robert F. Smith; Anne K. Cybenko; SRA INTERNATIONAL INC DAYTON OH [/td][/tr]
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Modeling the behavior of interacting humans in routine but complex activities has many challenges, not the least of which is that humans can be both purposive and negligent, and further can encounter unexpected environmental hazards requiring fast action. The challenge is to characterize and model the humdrum routine while at the same time capturing the deviations and anomalies which arise from time to time. Because of the disruptive impact that …
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[tr][td=2,1]Functionalized Nano and Micro Structured Composite Coatings[/td][td]
Jun 2011
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61 pages
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[tr][td=5,1]Authors: Igor Luzinov; Konstantin Kornev; CLEMSON UNIV SC SCHOOL OF MATERIALS SCIENCE AND ENGINEERING [/td][/tr]
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Current methods of decontaminating Chemical Warfare Agents (CWA) contaminated equipment need significant improvement. To this end, the major objective of this work was to conduct research on development of effective nano and micro structured composite coatings capable to collect and decontaminate the chemical agents. In addition, the coating is intended to minimize the contamination cross-section of a coated vehicle. During the project we developed major components required to build effective …
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[tr][td=2,1]Ultra Wideband (UWB) Synchronous Impulse Reconstruction (SIRE) Radar Upgrade Assessment Field Experiment[/td][td]
Apr 2011
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32 pages
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[tr][td=5,1]Authors: Brian Stanton; Francois Koenig; Greg Mazzaro; Marc Ressler; Kelly Sherbondy; Gregory Smith; ARMY RESEARCH LAB ADELPHI MD [/td][/tr]
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Several upgrades have been incorporated into the Ultra Wideband (UWB) Synchronous Impulse Reconstruction (SIRE) radar, which includes: (a) Augmented Reality, (b) antenna array mounting structure, © electronic switch and electro-mechanical relay, and (d) low noise amplifiers. The purpose of the experiment is to assess UWB SIRE radar upgrades.
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[tr][td=2,1]Optical Flow-Based Odometry for Underground Tunnel Exploration[/td][td]
MAR 2011
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63 pages
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[tr][td=5,1]Authors: Terra Kier; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
As military operations in degraded or GPS-denied environments continue to increase in frequency and importance, there is an increased necessity to be able to determine precision location within these environments. Furthermore, authorities are finding a record number of tunnels along the U.S.-Mexico border; therefore, underground tunnel characterization is becoming a high priority for U.S. Homeland Security as well. This thesis investigates the performance of a new image registration technique based …
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[/table]

[/td][/tr]
[tr][td=2,1]An Interactive Design Space Supporting Development of Vehicle Architecture Concept Models[/td][td]
Jan 2011
[/td][td]
11 pages
[/td][/tr]
[tr][td=5,1]Authors: Gary Osborne; Glen Prater; Rostyslav Lesiv; David Lamb; Matthew Castanier; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Due to a lack of suitable analysis tools, automotive engineers are often forced to forego quantitative optimization early in the development process, when fundamental decisions establishing vehicle architecture are made. This lack of tools arises because traditional analysis models require detailed geometric descriptions of components and assembly joints in order to yield accurate results, but this information is simply not available early in the development cycle. Optimization taking place later …
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[/table]

[/td][/tr]
[tr][td=2,1]Vehicle Concept Model Abstractions for Integrated Geometric, Inertial, Rigid Body, Powertrain, and FE Analysis[/td][td]
Jan 2011
[/td][td]
12 pages
[/td][/tr]
[tr][td=5,1]Authors: Gary Osborne; Glen Prater; Rostyslav Lesiv; David Lamb; Matthew Castanier; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Vehicle analysis models of any kind have their basis in some type of physical representation of the design domain. Rather than describing three-dimensional continua of a collection of components as is done in detail-level CAD models, an architecture-level abstraction describes fundamental function and arrangement, while capturing just enough physical detail to be used as the basis for a meaningful design space representation and eventually, analyses that permit architecture assessment. The …
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[/td][/tr]
[tr][td=2,1]Strategic Insights. Volume 10, Issue 2, Summer 2011[/td][td]
Jan 2011
[/td][td]
60 pages
[/td][/tr]
[tr][td=5,1]Authors: NAVAL POSTGRADUATE SCHOOL MONTEREY CA CENTER FOR CONTEMPORARY CONFLICT [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Partial contents: PFLP and its Offshoots, Assassination by Remotely Piloted Vehicle, Article Governance in Pakitan’s FATA and Point/Counterpoint Has the death Bin Laden made the US safer?.
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[/td][/tr]
[tr][td=2,1]Robotic Skies: Intelligence, Surveillance, Reconnaissance and the Strategic Defense of Japan[/td][td]
DEC 2010
[/td][td]
21 pages
[/td][/tr]
[tr][td=5,1]Authors: Patrick M. Cronin; Paul S. Giarra; CENTER FOR A NEW AMERICAN SECURITY WASHINGTON DC [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This paper argues that ISR is important for Japan’s strategic defense in particular and for regional security in general. The introduction examines the role of ISR capabilities. The second section analyzes Japan’s shifting strategic environment and growing need for improved ISR capabilities and integration, including ground-based analysis and use of the information that is retrieved. The third section examines the evolution of ISR technologies, with a focus on recent advances …
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[/td][/tr]
[tr][td=2,1]Advancing the Behavior Modeling and Visualization of Entities in the Ground Vehicle Simulation Laboratory[/td][td]
10 Nov 2010
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Daniel W Carruth; John McGinley; Chris Mikulski; Andrey Shvartsman; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
TARDEC Ground Vehicle Simulation Laboratory (GVSL) designs and executes soldier-in-the-loop distributed virtual simulations. Goal: to improve Army ground vehicles systems. Recent experiments include obtaining physiological data on situational awareness decision-making and create vehicle usage profiles (duty cycles) for hybrid electric combat vehicles.
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[/table]

[/td][/tr]
[tr][td=2,1]End-to-end System level M&S Tool for Underbody Blast Events[/td][td]
Nov 2010
[/td][td]
23 pages
[/td][/tr]
[tr][td=5,1]Authors: Ravi Thyagarajan; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The underbody blast event is a very complex and highly transient phenomenon very short duration and extremely high G values. Blast modeling and simulation tools, processes and best practices are leveraged from the automotive industry to assess blast survivability vehicle performance. Occupant injury risk assessment tools and injury metrics for underbody blast events are based off of automotive standards and need further investigation / validation. Current M&S tools are beneficial …
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[/td][/tr]
[tr][td=2,1]Development of a Strategy for Simulating Blast-Vehicle Interactions[/td][td]
SEP 2010
[/td][td]
142 pages
[/td][/tr]
[tr][td=5,1]Authors: D. Thompson; E. Luke; III Newman J. C.; J. M. Janus; E. Blades; X. Tong; C. Moore; J. Kang; MISSISSIPPI STATE UNIV MISSISSIPPI STATE CENTER FOR ADVANCED VEHICULAR SYSTEMS [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report describes research and development activities supported by contract W56HZV-08-C-0126, which was funded under the SimBRS program, to develop a strategy to perform high-fidelity simulations of blast-vehicle interactions including complex phenomena such as detonation, coupled fluid-structure interactions, and non-linear structural response to severe, time-dependent pressure loads and debris impact. The contract leveraged ongoing development efforts for the high-fidelity flow solver Loci/CHEM to produce a fully Eulerian numerical capability to …
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[tr][td=2,1]Force and Moment Plots from Pacejka 2002 Magic Formula Tire Model Coefficients[/td][td]
SEP 2010
[/td][td]
40 pages
[/td][/tr]
[tr][td=5,1]Authors: Jill E. Goryca; ARMY TANK-AUTOMOTIVE AND ARMAMENTS COMMAND WARREN MI [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
One of the important aspects in vehicle dynamics simulation is accurate modeling of the tire-road interaction forces because the movement of the vehicle depends on the forces and moments applied to the tires. Many vehicle simulation programs such as MSC Software ADAMS, Altair HyperWorks MotionSolve, etc. use the Magic Formula (MF) developed by Pacejka to model tires. In order to use these applications more effectively, a tool was developed using …
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[tr][td=2,1]Time-Dependent Reliability/Durability Methodologies for Acquisition, Maintenance, and Operation of Vehicle Systems[/td][td]
11 May 2010
[/td][td]
31 pages
[/td][/tr]
[tr][td=5,1]Authors: Amandeep Singh; Zissimos P Mourelatos; Jing Li; OAKLAND UNIV ROCHESTER MI DEPT OF MECHANICAL ENGINEERING [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Published studies and audits have documented that reliability has a significant impact on mission effectiveness, logistics effectiveness, and life-cycle costs. Purpose of this research is to develop methodologies to assess and improve the reliability / durability of vehicle systems, then use those methodologies in design for lifecycle cost and preventive maintenance. Random Process leads to Time-Dependent Reliability. Time-dependent reliability methodologies have been developed using math-based models.
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[tr][td=2,1]Predicting Snap-through of a Thin-walled Panel due to Thermal and Acoustic Loads[/td][td]
May 2010
[/td][td]
16 pages
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[tr][td=5,1]Authors: R S Miskovish; Parthiv Shah; Stephen M Spottswood; ATA ENGINEERING INC SAN DIEGO CA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Under contract from Wright-Patterson AFB (WPAFB), ATA Engineering, Inc., (ATA) has performed a study of snap-through buckling of a panel on a hypersonic vehicle under the influence of fluctuating pressures. Snap-through occurs when the elastic stiffness of the structure is cancelled by the effects of compressive stress within the structure. If this effect causes the structure to suddenly displace a large amount in a direction normal to the load direction …
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[tr][td=2,1]AMMPHS Trial Report CFB Valcartier, 28 September to 9 October 2009 (Compte Rendu D’Essais pour le AMMPHS BFC Valcartier du 28 Septembre au 9 Octobre 2009)[/td][td]
Mar 2010
[/td][td]
143 pages
[/td][/tr]
[tr][td=5,1]Authors: C Ste Croix; A Morton; H Angel; HUMANSYSTEMS INC GUELPH (ONTARIO) [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
A total of eight different AMMPHS prototype mandible systems were assessed as part of a SIHS helmet trial held at Canadian Forces Bases (CFB) Valcartier from September 28 to October 9, 2009. Twelve participants were required to undertake a battery of human factors tests while wearing the current in-service helmet (CG634) or one of the AMMPHS prototype mandibles in a blocked repeated measures design. During each test, the order of …
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[tr][td=2,1]Dynamics and Control of a Biomimetic Vehicle Using Biased Wingbeat Forcing Functions: Part 2 - Controller (Postprint)[/td][td]
Jan 2010
[/td][td]
38 pages
[/td][/tr]
[tr][td=5,1]Authors: David B Doman; Michael W Oppenheimer; David O Sigthorsson; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH AIR VEHICLES DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
A control strategy is proposed for a minimally-actuated flapping-wing micro air-vehicle (FWMAV). The proposed vehicle is similar to the Harvard RoboFly that accomplished the first takeoff of an insect scale flapping wing aircraft, except that it is equipped with independently actuated wings. Using the derivation of the aerodynamic forces and moments from Part I, a control allocation strategy and a feedback control law are designed that enable the vehicle to …
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[/table]

[/td][/tr]
[tr][td=2,1]Dynamics and Control of a Biomimetic Vehicle Using Biased Wingbeat Forcing Functions: Part 1 - Aerodynamic Model (Postprint)[/td][td]
Jan 2010
[/td][td]
36 pages
[/td][/tr]
[tr][td=5,1]Authors: David B Doman; Michael W Oppenheimer; David O Sigthorsson; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH AIR VEHICLES DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
An aerodynamic model, for a minimally actuated flapping wing micro air vehicle (FWMAV), is derived from blade element theory. The vehicle considered in this work is similar to the Harvard RoboFly, except that it is equipped with independently actuated wings. A blade element-based approach is used to compute both instantaneous and cycle-averaged forces and moments for a specific type of wingbeat motion that enables nearly decoupled, multi-degree-of-freedom control of the …
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[tr][td=2,1]Ultrathin Direct Atomic Layer Deposition on Composite Electrodes for Highly Durable and Safe Li-Ion Batteries[/td][td]
Jan 2010
[/td][td]
6 pages
[/td][/tr]
[tr][td=5,1]Authors: Yoon Seok Jung; Andrew S Cavanagh; Leah A Riley; Sun-Ho Kang; Anne C Dillon; Markus D Groner; Steven M George; Se-Hee Lee; COLORADO UNIV AT BOULDER [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
In order to employ Li-ion batteries (LIBs) in next-generation hybrid electric and/or plug-in hybrid electric vehicles (HEVs and PHEVs), LIBs must satisfy many requirements: electrodes with long lifetimes (fabricated from inexpensive environmentally benign materials), stability over a wide temperature range, high energy density, and high rate capability. Establishing long-term durability while operating at realistic temperatures (5000 charge-depleting cycles, 15 year calendar life, and a range from -46 deg C to …
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[tr][td=2,1]Unmanned Aircraft Systems as Wingmen[/td][td]
2010
[/td][td]
12 pages
[/td][/tr]
[tr][td=5,1]Authors: Richard D. Garcia; Laura Barnes; MaryAnne Fields; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This paper introduces a method to integrate Unmanned Aircraft Systems (UASs) into a highly functional manned/unmanned team through the design and implementation of 3D distributed formation/flight control algorithms with the goal to act as wingmen for a manned aircraft. The proposed algorithms are designed to increase UAS autonomy dynamically modify formations, utilize standard operating formations to reduce pilot resistance to integration, and support splinter groups for surveillance and/or as safeguards …
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[/td][/tr]
[tr][td=2,1]The California Central Coast Research Partnership: Building Relationships, Partnerships, and Paradigms for University-Industry Research Collaboration[/td][td]
18-Dec-2009
[/td][td]
755 pages
[/td][/tr]
[tr][td=5,1]Authors: M Black; C Clark; T Cardinal; G Bekey; J Bellardo; S Barjami; K Abney; S Opava; D Derickson; D Clague; CALIFORNIA POLYTECHNIC STATE UNIV SAN LUIS OBISPO [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The primary purpose of tins project is to carry out applied research and development projects and build research capacity in areas of interest to the Department of Defense and the Office of Naval Research. Research areas include communications, computing, command and control, sensors, coastal monitoring, force protection and performance, bio- and chemical-hazard detection and mitigation, vulnerability assessment, new materials and devices, data acquisition, optical and radar imaging, autonomous vehicles and …
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[/td][/tr]
[tr][td=2,1]Geo-Based Inter-Domain Routing (GIDR) Protocol for MANETS[/td][td]
Oct-2009
[/td][td]
8 pages
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[tr][td=5,1]Authors: Mario Gerla; Abhishek Tiwari; Biao Zhou; Konglin Zhu; You Lu; Anurag Ganguli; Bao-hong Shen; David Krzysiak; UTOPIA COMPRESSION CORP LOS ANGELES CA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Inter-domain routing for MANETs (Mobile Ad Hoc Networks) draws increasing attention because of military and vehicular applications. The existing Border Gateway Protocol (BGP) is the de facto inter-domain routing protocol for the Internet. But BGP is not applicable to MANETs because the BGP design is based on a static Internet which does not support dynamic discovery of members, and cannot scale to mobile, dynamic topology environments. The proposed geo-based inter-domain …
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[/table]

[/td][/tr]
[tr][td=2,1]Afghanistan Security Forces Fund Phase III - Accountability for Equipment Purchased for the Afghanistan National Police[/td][td]
22-Sep-2009
[/td][td]
38 pages
[/td][/tr]
[tr][td=5,1]Authors: INSPECTOR GENERAL DEPT OF DEFENSE ARLINGTON VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
We determined whether the Combined Security Transition Command-Afghanistan (CSTC-A) could account for equipment purchased with the Afghanistan Security Forces (ASF) Fund to support the Afghanistan National Police (ANP). We also determined whether CSTC-A properly transferred accountability for the equipment to the ANP. What We Found We identified internal control weaknesses in accounting for equipment provided to the ANP. Specifically, CSTC-A did not have adequate receiving and inventory controls and could …
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[/table]

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[tr][td=2,1]Sensor Placement for Detection of Cracks in Structures Exhibiting Nonlinear Dynamics[/td][td]
09-Sep-2009
[/td][td]
26 pages
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[tr][td=5,1]Authors: Matthew P Castanier; David J Gorsich; Bogdan I Epureanu; Akira Saito; Sung Kwon Hong; TACOM RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
[/td][/tr]
[/table]
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[tr][td=2,1]Designing a Sensorless Torque Estimator for Direct Torque Control of an Induction Motor[/td][td]
Sep-2009
[/td][td]
87 pages
[/td][/tr]
[tr][td=5,1]Authors: Athanasios Tsoutsas; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF ELECTRICAL AND COMPUTER ENGINEERING [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Nowadays, transportation is a major cause of air pollution. Electric propulsion could replace the internal combustion engines of automobiles and reduce the emission of exhaust gases. The propulsion of an electric vehicle requires the design of an accurate electromagnetic torque estimator and an efficient control system in order to control the speed of the vehicle. This concept is conveyed through this thesis. An electromagnetic torque calculator of an induction motor …
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[tr][td=2,1]Indoor Navigation for Unmanned Aerial Vehicles[/td][td]
13-Aug-2009
[/td][td]
30 pages
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[tr][td=5,1]Authors: Sobers; D M Jr; Girish Chowdhary; Eric N Johnson; GEORGIA INST OF TECH ATLANTA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The ability for vehicles to navigate unknown environments is critical for autonomous operation. Mapping of a vehicle’s environment and self-localization within that environment are especially difficult for an Unmanned Aerial Vehicle (UAV) due to the complexity of UAV attitude and motion dynamics, as well as interference from external influences such as wind. By using a stable vehicle platform and taking advantage of the geometric structure typical of most indoor environments, …
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[/table]

[/td][/tr]
[tr][td=2,1]Dynamics and Control of a Minimally Actuated Biomimetic Vehicle: Part 1 - Aerodynamic Model (Postprint)[/td][td]
Aug 2009
[/td][td]
27 pages
[/td][/tr]
[tr][td=5,1]Authors: David B Doman; Michael W Oppenheimer; David O Sigthorsson; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH AIR VEHICLES DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
An aerodynamic model for the forces and moments acting on a minimally actuated flapping wing micro air vehicle (FWMAV) are derived from blade element theory. The proposed vehicle is similar to the Harvard RoboFly that accomplished the first takeoff of an insect scale flapping wing aircraft, except that it is equipped with independently actuated wings and the vehicle center-of-gravity can be manipulated for control purposes. Using a blade element-based approach, …
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[/table]

[/td][/tr]
[tr][td=2,1]Dynamics and Control of a Minimally Actuated Biomimetic Vehicle: Part 2 - Control (Postprint)[/td][td]
Aug 2009
[/td][td]
25 pages
[/td][/tr]
[tr][td=5,1]Authors: David B Doman; Michael W Oppenheimer; David O Sigthorsson; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH AIR VEHICLES DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
vA control strategy is proposed for a minimally-actuated flapping-wing micro air-vehicle (FWMAV). The proposed vehicle is similar to the Harvard RoboFly that accomplished the first takeoff of an insect scale flapping wing aircraft, except that it is equipped with independently actuated wings and the vehicle center-of-gravity can be manipulated for control purposes. Using the results from the derivation of the aerodynamic forces and moments from Part I, a control allocation …
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[tr][td=15%]Total Results: 2021
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[tr][td=15%]Total Results: 926
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Results per page:
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[tr][td][table]
[tr][td]Sort by:[/td][td=80]Title[/td][td=80]Date [/td][td=80]Pages[/td][td=60]Display:[/td][td=150]
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[tr][td][table=98%]
[tr][td=2,1]After Effects of Welding Armor Steels
[/td][td]
31 Aug 2011
[/td][td]
26 pages
[/td][/tr]
[tr][td=5,1]Authors: Matt Rogers; ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI [/td][/tr]
[tr][td=6,1][table=98%]
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[tr][td=2,1]Laser Peening for Mitigation of Stress Corrosion Cracking at Welds in Marine Aluminum[/td][td]
JUN 2011
[/td][td]
77 pages
[/td][/tr]
[tr][td=5,1]Authors: Heather R. Mattern; NAVAL POSTGRADUATE SCHOOL MONTEREY CA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This work examines the use of laser peening (LP) for mitigation of stress corrosion cracking (SCC) in marine grade aluminum alloys (Al-Mg). These alloys can be sensitized during welding and will develop a tensile residual stress in the heat affected zone that may promote SCC in a salt water environment. Metal inert gas welded aluminum alloy 5083 (4.8wt% Mg) plate was laser peened using a variety of laser intensities to …
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[tr][td=2,1]Microstructure Evolution during Friction Stir Welding of Mill-Annealed Ti-6Al-4V (Preprint)[/td][td]
May 2011
[/td][td]
46 pages
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[tr][td=5,1]Authors: A L Pilchak; J C Wiliams; W Tang; H Sahiner; A P Reynolds; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH MATERIALS AND MANUFACTURING DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
In this study, mill-annealed Ti-6Al-4V plates were successfully friction stir welded over a wide range of processing parameters using a tungsten - 1%La2O3 tool. Two K-type thermocouples embedded in the tool indicated that approximately 25 pct. of the heat generated during welding was transferred out of the workpiece and into the tool. The thermocouple data, combined with observations of the microstructure, indicated that the stir zone of all welds exceeded …
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[tr][td=2,1]Texture Development in Friction Stir Welds[/td][td]
2011
[/td][td]
8 pages
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[tr][td=5,1]Authors: R. W. Fonda; K. E. Knipling; NAVAL RESEARCH LAB WASHINGTON DC [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The shear textures that develop in friction stir welds are reviewed and discussed. In all the materials examined, including face centred cubic (fcc), body centred cubic (bcc) and hexagonal close-packed (hcp) materials, friction stir welding produces a predominant shear texture with the close-packed directions aligned with the shear direction (SD) and the close-packed plane normal perpendicular to both the SD and the shear plane normal. This orientation corresponds to the …
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[tr][td=2,1]Validations of Computational Weld Models: Comparison of Residual Stresses[/td][td]
AUG 2010
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[tr][td=5,1]Authors: John Goldak; GOLDAK TECHNOLOGY INC OTTAWA (CANADA)
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
The objective of this project was to validate the capability of VrWeld to simulate the weld buildup process in two experimental setups. Setup I had a central depression with dimensions of 100 x 100 x 3 mm, while Setup II had a central depression with dimensions of 200 x 200 x 3 mm. This report documents the validation of the computer model’s capability to compute residual stress in overlay weld …
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[tr][td=2,1]Ultrasonic Phased Arrays for the Inspection of Thick-Section Welds[/td][td]
Sep-2009
[/td][td]
13 pages
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[tr][td=5,1]Authors: R J Ditchburn; M E Ibrahim; DEFENSE SCIENCE AND TECHNOLOGY ORGANIZATION VICTORIA (AUSTRALIA) MARITIME PLATFORMS DIV [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Ultrasonic phased arrays will eventually replace conventional ultrasonic methods in many nondestructive evaluation (NDE) applications. However, the transition to phased arrays is not without its pitfalls and challenges. In this report we present a summary of the advantages and limitations of phased-array ultrasonics in NDE, with specific reference to the inspection of thick-section welds. The main advantages offered by phased arrays over conventional systems are increased sensitivity, coverage and speed. …
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[tr][td=2,1]The Concept of Electrically Assisted Friction Stir Welding (EAFSW) and Application to the Processing of Various Metals[/td][td]
01-Sep-2008
[/td][td]
33 pages
[/td][/tr]
[tr][td=5,1]Authors: William A Ferrando; NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD SURVIVABILITY STRUCTURES AND MATERIALS DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report introduces a novel variant of conventional friction stir welding (FSW). Since 1991, friction stir welding provides an alternative to arc welding as a metal joining method in numerous applications. In FSW, the heat required to soften the target metal is generated totally by the rotating friction of the tool which necessitates rather high downward (Z) operating force and often leads to relatively short tool life. In the proposed …
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[tr][td=2,1]Numerical Simulation of Gleeble Torsion Testing of HSLA-65 Steel[/td][td]
Apr-2008
[/td][td]
36 pages
[/td][/tr]
[tr][td=5,1]Authors: David R Forrest; Matthew F Sinfield; NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD SURVIVABILITY STRUCTURES AND MATERIALS DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
NSWCCD has used a Gleeble thermomechanical simulator as a tool to provide carefully controlled deformation cycles on metallurgical samples to study the properties and physics of friction stir welds. Our Gleeble experiments provide critical information that cannot be obtained from experimental friction stir welds because the metallurgical state can change radically with position due to the extreme thermal and strain field gradients within a friction stir weld. This allows us …
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[/table]

[/td][/tr]
[tr][td=2,1]Physics and Cyber-Enabled Manufacturing Process Control[/td][td]
FEB 2008
[/td][td]
3 pages
[/td][/tr]
[tr][td=5,1]Authors: P. J. Casey; Cameron Booth; Joseph Beaman; Al Mok; TEXAS UNIV AT AUSTIN [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The objective of the project is to be able to predict welding failures in real time and correct them as quickly as possible. This will be a drastic shift from the current statistically controlled manufacturing to dynamic model based manufacturing control.
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[/table]

[/td][/tr]
[tr][td=2,1]The “Lazy S” Feature in Friction Stir Welding of AA2099 Aluminum -Lithium Alloy[/td][td]
DEC 2007
[/td][td]
63 pages
[/td][/tr]
[tr][td=5,1]Authors: Holli K. Klages; NAVAL POSTGRADUATE SCHOOL MONTEREY CA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The addition of Lithium to Aluminum-Lithium (Al-Li) alloys results in reduced density as well as increased stiffness and strength, and so these materials are attractive for selected aerospace structures. Friction Stir Welding (FSW) of Al-Li alloys may provide high join efficiency in such structures but potential FSW defects must be understood. This thesis examines the occurrence of the "Lazy S: feature, which may be a defect. Welds were made after …
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[/td][/tr]
[tr][td=2,1]Development of an Ultralight Pulse Gas Metal ARC Welding System for Shipyard Applications[/td][td]
27 JUL 2007
[/td][td]
40 pages
[/td][/tr]
[tr][td=5,1]Authors: Neil D. Fichtelberg; GENERAL DYNAMICS GROTON CT ELECTRIC BOAT DIV [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
A significant cost in shipbuilding is setup during unit erection and outfitting to support welding operations. For small welding jobs such as hanger and tack welding, the labor associated with equipment relocation and setup can be a large part of the total cost of welding. This is primarily due to the need to move large and cumbersome welding equipment and cables through confined structures. As a result, many hangers and …
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[/td][/tr]
[tr][td=2,1]Numerical Evaluation of Stress Intensity Factors (Ki) J-Integral Approach[/td][td]
SEP 2006
[/td][td]
11 pages
[/td][/tr]
[tr][td=5,1]Authors: Guillermo A. Riveros; ENGINEER RESEARCH AND DEVELOPMENT CENTER VICKSBURG MS [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The purpose of this Coastal and Hydraulics Engineering Technical Note (CHETN) is to describe the numerical evaluation of the stress intensity factors using the J-integral approach (Rice 1968a, 1968b). The stress intensity factors have been calculated for a semi-infinite plate with an edge crack. This case has a known closed-form solution, and only a 1.25 percent difference between the numerical and closed-form solution was obtained. This CHETN also presents the …
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[tr][td=2,1]40"x44" Metal Pallet with Metal Adapters with PA125 Metal Boxes, MIL-STD-1660 First Article Tests[/td][td]
AUG 2006
[/td][td]
29 pages
[/td][/tr]
[tr][td=5,1]Authors: ARMY DEFENSE AMMUNITION CENTER MCALESTER OK VALIDATION ENGINEERING DIV [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The U.S. Army Defense Ammunition Center (DAC), Validation Engineering Division (SJMAC-DEV) conducted First Article Tests in accordance with MIL-STD-1660, “Design Criteria for Ammunition Unit Loads” on the 40" x 48" metal pallet with metal adapters with PA125 metal boxes manufactured by Choctaw Manufacturing and Development Corporation (CDMC), from Hugo, Oklahoma. Six test units were tested. The test units were loaded and passed with a load of 2,560 lbs each for …
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[/td][/tr]
[tr][td=2,1]Ultrasonic Detection Using Correlation Images (Preprint)[/td][td]
AUG 2006
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: Raini Cepel; K. C. Ho; Brett A. Rinker; Donald D. Palmer; Steven P. Neal; MISSOURI UNIV-COLUMBIA COLL OF ENGINEERING
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[tr][td=6,1][table=98%]
[tr][td][/td][td]
In ultrasonics, image formation and detection are generally based on signal amplitude. In this paper, we describe an amplitude independent approach for imaging and detection based on the similarity of adjacent signals, quantified by the correlation coefficient calculated between A-scans. Correlation coefficient images are introduced and shown with C-scan images to demonstrate flat-bottom-hole and crack detection in experimental data and planar defect detection at very low signal-to-noise ratio using simulated …
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[/td][/tr]
[tr][td=2,1]Collaborative Research and Development Delivery. Order 0041: Models for the Prediction of Interfacial Properties[/td][td]
AUG 2006
[/td][td]
24 pages
[/td][/tr]
[tr][td=5,1]Authors: Bence Bartha; UNIVERSAL TECHNOLOGY CORP DAYTON OH [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The research in support of the Air Force Research Laboratory, Materials and Manufacturing Directorate was conducted at Wright-Patterson AFB, Ohio from 25 July 2005 through 4 August 2006. The task developed various experimental and computational tools to determine the material behavior of weld interfaces and local grain behavior of materials. Stereo imaging, optical microscopy and scanning electron microscopy were used to determine the local interfacial characteristics of welds as well …
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[/td][/tr]
[tr][td=2,1]Occupational Survey Report, AFSC 2A7X1 Aircraft Metals Technology[/td][td]
28 SEP 2005
[/td][td]
38 pages
[/td][/tr]
[tr][td=5,1]Authors: Tyrone Hill; AIR FORCE OCCUPATIONAL MEASUREMENT SQUADRON RANDOLPH AFB TX [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
These briefing charts concern the Air Force’s occupational survey for Aircraft Metals Technology. Topics discussed are the homogeneous job structure with five independent jobs are identified, technical tasks are performed throughout all skill levels, career ladder documents well-supported by survey data and job satisfaction indicators are very good. An aircraft metals technician designs, welds, heat treats, fabricates, and machines percision tools, components, and assemblies for aerospace weapon sytems and related …
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[tr][td=2,1]Novel Approach for Welding Stainless Steel Using Cr-Free Welding Consumables[/td][td]
31 DEC 2004
[/td][td]
80 pages
[/td][/tr]
[tr][td=5,1]Authors: J. C. Lippold; G.S. Frankel; OHIO STATE UNIV COLUMBUS DEPT OF MATERIALS SCIENCE AND ENGINEERING [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This project was a SERDP seed grant that was extended from the normal one year duration to a total of two years. The goal of the project was to demonstrate the feasibility of a new approach for welding stainless steel using Cr-free consumables. Stainless steels are usually selected as a material of construction for their corrosion resistance. When they are fabricated into structures, stainless steel components are often joined by …
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[tr][td=2,1]Advanced Methods for Highly-Portable Field Repair Welding and Assessing Phase Stability and Aging of Alloys in Service[/td][td]
03 SEP 2004
[/td][td]
28 pages
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[tr][td=5,1]Authors: David L. Olson; Yeong-Do Park; COLORADO SCHOOL OF MINES GOLDEN DEPT OF METALLURGICAL ENGINEERING [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
New welding consumables and practices for weld repair are being investigated. Special attention was given to the repair of light metals (aluminum and magnesium alloys). Metal powder filled cored aluminum wires to be used with microwire GMA spool hand held guns were being developed. The use of strip-to-wire mill to make powder metal-cored wires was being perfected as an effective methodology for making specialty alloy welding consumable wires. These wires …
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[/table]

[/td][/tr]
[tr][td=2,1]Intermodal Storage and Transport Frame (ISTF) MIL-STD-1660 Design Criteria for Ammunition Unit Loads Tests[/td][td]
MAR 2004
[/td][td]
32 pages
[/td][/tr]
[tr][td=5,1]Authors: Philip W. Barickman; ARMY DEFENSE AMMUNITION CENTER MCALESTER OK VALIDATION ENGINEERING DIV [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The U.S. Army Defense Ammunition Center (DAC), Validation Engineering Division (SJMAC-DEV) was tasked by the Transportation Engineering Division, (SJMAC-DET) to conduct testing on the Intermodal Storage and Transport Frame (ISTF), manufactured by Mobile Shelter Systems, Inc. The ISTF was evaluated by the testing procedures set forth in MIL-STD-1660. Stacking, vibration, edgewise rotational drop, incline impact, sling compatibility, forklifting, and disassembly testing were conducted on the ISTF units. Each unit sustained …
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[/table]

[/td][/tr]
[tr][td=2,1]Modular Storage and Transport Frame (MSTF) Low, MIL-STD-1660, “Design Criteria for Ammunition Unit Loads” Testing[/td][td]
SEP 2003
[/td][td]
28 pages
[/td][/tr]
[tr][td=5,1]Authors: Philip W. Barickman; ARMY DEFENSE AMMUNITION CENTER MCALESTER OK VALIDATION ENGINEERING DIV [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The U.S. Army Defense Ammunition Center (DAC), Validation Engineering Division (SJMAC-DEV) was tasked by Mobile Shelter Systems, Inc. to conduct testing to determine if the Modular Storage and Transport Frame (MSTF) Low, manufactured by Mobile Shelter Systems, Inc., was adequate for unitization and transportation of boxed ammunition. The MSTF Low was evaluated by the testing procedures set forth in MIL-STD-1660. Stacking, repetitive shock, edgewise rotational drop, incline impact, sling compatibility, …
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[/table]

[/td][/tr]
[tr][td=2,1]Development of a Computer Aided Weld Design Tool[/td][td]
MAR 2003
[/td][td]
71 pages
[/td][/tr]
[tr][td=5,1]Authors: Panagiotis Michaleris; PENNSYLVANIA STATE UNIV UNIVERSITY PARK [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Contributed to the development of a Lagrangial thermo-mechanical process optimization approach. The methodology was demonstrated in the optimization of the thermal tensioning process for the minimization of welding residual stress elimination of buckling distortion. Developed eigenvalue sensitivity analysis capabilities for the prediction and elimination of buckling distortion in large welded structures. Initiated research on the coupled multi- scale thermo-mechanical process modeling of large structures. The approach combines adaptivity and domain …
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[/table]

[/td][/tr]
[tr][td=2,1]Corrosion Mechanisms of UNS N04400 in Sea Water[/td][td]
MAR 2003
[/td][td]
24 pages
[/td][/tr]
[tr][td=5,1]Authors: Jason S. Lee; Kristine Lowe; RIchard I. Ray; J. Jones-Meehan; Brenda J. Little; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Pitting and dealloying were observed when 70Ni/30Cu (UNS N04400) welded plates were exposed to artificial seawater containing sulfate-reducing bacteria. Attempts were made to differentiate biotic and abiotic corrosion mechanisms. Experiments were conducted in alternating aerobic/anaerobic conditions in the presence of inorganic sulfide and sulfate-reducing bacteria over the course of five months.
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[/table]

[/td][/tr]
[tr][td=2,1]The Role of Marine Bacteria in Stainless Steel Pitting[/td][td]
JAN 2002
[/td][td]
17 pages
[/td][/tr]
[tr][td=5,1]Authors: RIchard I. Ray; Brenda J. Little; Jason S. Lee; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEANOGRAPHY DIV [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Flat plate and welded stainless steel coupons (316L, Nitronic 50 an AL6xN) were evaluated for potential microbiologically influenced corrosion in seawater. No pitting was observed in flat plate of welded AL6xN under the exposure condition after one year. Pits were located at welds of Nitronic 50 and 316L stainless steels after six- and eight-week exposures. In all cases, large numbers of bacteria were associated with the corrosion products. No corrosion …
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[/table]

[/td][/tr]
[tr][td=2,1]New Welding Consumables and Practice for Highly Portable Field Repair[/td][td]
20 DEC 2001
[/td][td]
31 pages
[/td][/tr]
[tr][td=5,1]Authors: D. L. Olson; COLORADO SCHOOL OF MINES GOLDEN CENTERFOR WELDING JOINING AND COATINGS RESEARCH [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
New welding consumables and practice for weld repair and extended service life were investigated. Exothermally assisted arc welding was successfully accomplished with both SMA and self-shielded FCA welding consumables on steels and the optimum range of exothermic additions and welding parameters was determined Metal powder-filled core aluminum wires were produced which, on welding, promote grain refinement in aluminum weld deposits. Grain refinement in aluminum welds is directly related to weldability …
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[/table]

[/td][/tr]
[tr][td=2,1]Coating-Bond Evaluation Using Dispersion Curves and Laser-Ultrasonics[/td][td]
DEC 2001
[/td][td]
31 pages
[/td][/tr]
[tr][td=5,1]Authors: Agostino Abbate; Bryon Knight; Moayyed A. Hussain; ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY BENET LABS [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The dispersion characteristics of Rayleigh surface waves are used to distinguish the quality of the bond between a coating and the metallic substrate. The velocity versus frequency curves for good or ‘welded’ bonds differ significantly from the correspondent dispersion curves for poorer or ‘smooth’ bonds. A theoretical dynamic model of the ultrasonic experiments was developed and compared with experimental results. As examples of welded contacts, we used coatings of tantalum …
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[/table]

[/td][/tr]
[tr][td=2,1]Advances in Hydrogen Management for High Strength Steel[/td][td]
07 JUN 2001
[/td][td]
18 pages
[/td][/tr]
[tr][td=5,1]Authors: Yeong-Do Park; Chad Lensing; Iman Maroef; David L. Olson; Zamir Gavra; COLORADO SCHOOL OF MINES GOLDEN CENTERFOR WELDING JOINING AND COATINGS RESEARCH [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Diffusible hydrogen content in high strength low alloy steels welding can be better managed with modifications to the low hydrogen welding consumables. The welding consumable alloy content needs to allow the weld metal to transform from austenite to ferrite/martensite at slightly higher temperature than the base metal does. This practice will allow for the best dispersal of hydrogen from the weld deposit and minimizing the tendency of localizing the hydrogen …
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[/table]

[/td][/tr]
[tr][td=2,1]Ship Hull Plating Weld Misalignment Effects When Subjected to Tension[/td][td]
JUN 2001
[/td][td]
[/td][/tr]
[tr][td=5,1]Authors: M. C. Weaver; DEPARTMENT OF THE NAVY WASHINGTON DC
[/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Precision fabrication of ships is advancing. Welding is ubiquitous in ship construction and military standards have specified tolerances for joining plates in naval combatants. Precision manufacturing will allow the production of ships with smaller hull plate misalignments. A benefit from this could be improved ship survivability when subjected to underwater explosions. Slip Line Fracture Mechanics interacting with Finite Element Analysis (FEA) gives insight into the deformation, necking and fracture mechanisms …
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[/table]

[/td][/tr]
[tr][td=2,1]Processing and Characterization of Welded Bonds between Thermoset and Thermoplastic Composites[/td][td]
MAY 2001
[/td][td]
46 pages
[/td][/tr]
[tr][td=5,1]Authors: Stephen H. McKnight; Bruce K. Fink; Veronique Monnard; P.-e. Bourban; Jan-Anders E. Manson; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
To assemble complex structures with short cycle times, the feasibility of welding thermoplastic (TP) to thermoset (TS) composites is demonstrated using a phenomenological approach. The effect of the thermal degradation of the TS composite (AS4/3501-6) on its shear strength is assessed in order to minimize the TS degradation during the welding process. The degradation is reported to decrease the shear strength in an exponential way. A layer of TP (polysulphone …
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[/table]

[/td][/tr]
[tr][td=2,1]Studies of Transport Phenomena and Their Effect on Weld Quality in Laser Beam Welding[/td][td]
31 MAR 2001
[/td][td]
25 pages
[/td][/tr]
[tr][td=5,1]Authors: Hai-Lung Tsai; MISSOURI UNIV-ROLLA DEPT OF MECHANICAL AND AEROSPACE ENGINEERING [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The objective of this project was to study complicated transport phenomena (laser-material interaction, heat transfer, and molten metal fluid dynamics) and their effect on weld quality in laser beam welding. The study investigated the formation of keyholes, keyhole dynamics, and possible weld defects caused by keyhole instability. A mathematical model based on continuum formulation (for handling metal flow during alloy melting/solidification) and volume-of-fluid (for handling free surfaces) was successfully developed …
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[/table]

[/td][/tr]
[tr][td=2,1]Accessories for Enhancement of the Semi-Automatic Welding Processes[/td][td]
12 DEC 2000
[/td][td]
62 pages
[/td][/tr]
[tr][td=5,1]Authors: Douglas M. Wheeler; James M. Sawhill; NEWPORT NEWS SHIPBUILDING AND DRY DOCK CO VA [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The project’s objective is to identify specific areas of the semi-automatic welding operation that is performed with the major semi-automatic processes, which would be more productive if a suitable mechanical or electrical accessory was available. Ideas were solicited and concepts proposed for accessories that would suit the identified applications when performing GMAW, FCAW, and GTAW processes. Interested manufacturers would work to develop and evaluate prototypes suitable for production shipbuilding environments. …
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[/table]

[/td][/tr]
[tr][td=2,1]Dynamic Fracture Toughness Characterization of HY-100 Under-Matched Welds[/td][td]
FEB 2000
[/td][td]
92 pages
[/td][/tr]
[tr][td=5,1]Authors: Stephen M. Graham; Michael D. McLaughlin; NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD SURVIVABILITY STRUCTURES AND MATERIALS DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Welds in marine structures are typically fabricated such that the yield strength of the weld metal is higher than the base plate (over-matched). Allowing the weld metal yield strength to be less than the base metal (under- matching) can increase productivity and weld metal toughness; however, there is some concern that under-matching increases the crack driving force and decreases the weld metal tearing resistance. This study examined fracture behavior of …
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[/table]

[/td][/tr]
[tr][td=2,1]The National Shipbuilding Research Program. Development of Electromagnetic Acoustic Transducers (EMATS) for Surface/Volumetric Inspection of Welds[/td][td]
17 JAN 2000
[/td][td]
122 pages
[/td][/tr]
[tr][td=5,1]Authors: D. T. Maclauchlan; S. P. Clark; M. B. Perry; J. W. Hancock; MCDERMOTT TECHNOLOGY INC LYNCHBURG VA CONTRACT RESEARCH DIV [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
This report summarizes the results of the National Shipbuilding Research Program (NSRP) Project 7-96-1, ElectroMagnetic Acoustic Transducers (EMATs) for Surface/Volumetric Inspection of Welds. Project 7-96-1 is a continuation of two earlier projects concerning shipyard application of EMATs for surface and volumetric weld inspection. An initial feasibility study (7-91-3) completed for the SP-7 Welding Panel in June, 1994 demonstrated laboratory feasibility for the use of EMAT generated surface waves to replace …
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[/table]

[/td][/tr]
[tr][td=2,1]Coating Evaluation Using Analytical and Experimental Dispersion Curves[/td][td]
NOV 1999
[/td][td]
16 pages
[/td][/tr]
[tr][td=5,1]Authors: B. Knight; M. Hussain; J. Frankel; J. F. Cox; J. Braunstein; ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER WATERVLIET NY BENET WEAPONS LAB [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Well-bonded or “welded” contact and poorly bonded or “smooth” contact bonds were studied. As examples of welded contact bonds, we used sputtered tantalum and electrodeposited high contraction chromium coatings that were deposited onto steel substrates under controlled conditions. In order to simulate smooth contact coatings, thin sheets of nickel and tantalum were epoxied to copper and steel substrates, respectively. We used the method originated by …
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[/table]

[/td][/tr]
[tr][td=2,1]PRET: A University-Industry Partnership Research and Transition of Gamnma Titanium Aluminides[/td][td]
SEP 1999
[/td][td]
152 pages
[/td][/tr]
[tr][td=5,1]Authors: Tresa M. Pollock; Paul S. Steif; CARNEGIE INST OF TECH PITTSBURGH PA DEPT OF METALLURGY AND MATERIALS SCIENCE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Cooling rates during casting have been shown to significantly influence yield strength, for the processing related research, tensile ductility and property variability in three different TiA1 alloys. Variations in ductility are most sensitive to extrinsic defects such as porosity or the presence of large grains oriented for easy straining. A technique for quantitative analysis of surface connected porosity has been developed. Additionally, in the area of induction skull melting, fundamental …
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[/table]

[/td][/tr]
[tr][td=2,1]Hydrogen and Preheat Management in Welded High Strength Steel for Defense Applications[/td][td]
15 JUL 1999
[/td][td]
187 pages
[/td][/tr]
[tr][td=5,1]Authors: David L. Olson; COLORADO SCHOOL OF MINES GOLDEN [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
With the need for new approaches to improve hydrogen management in higher strength steels, three tasks, each with its special focus and potential contributions, were established to promote cooperative research with TTCP operating assignment 013. These efforts are timely due to the introduction of even higher strength steels in Naval structures and defense hardware. These steels use new concepts of strengthening (i.e. precipitation) and not …
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[/table]

[/td][/tr]
[tr][td=2,1]Innovative Fabrication Techniques for Aerospace Propellant and Pressurant Tanks. Phase 1[/td][td]
14 JUL 1999
[/td][td]
57 pages
[/td][/tr]
[tr][td=5,1]Authors: G. A. Malone; Rich Edwards; Brian Babcock; Wanda Hudson; ELECTROFORMED NICKEL INC HUNTSVILLE AL [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
To be economically attractive, weight and performance for small earth-to-orbit launch systems and station keeping space vehicles must be improved at significantly lower costs while maintaining required payloads. A major weight and cost factor in any of these devices is the tankage for propellants and pressurant gases. Innovative and proven manufacturing technologies such as electroforming have been over-looked as means to meet these needs. …
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[/table]

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[tr][td=2,1]Cast Development for Aging Aircraft[/td][td]
25 MAR 1999
[/td][td]
9 pages
[/td][/tr]
[tr][td=5,1]Authors: Charles S. Lei; Dui W. Lee; William E. Frazier; Jeffrey Waldman; NAVAL AIR WARFARE CENTER AIRCRAFT DIV PATUXENT RIVER MD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
High quality investment castings have been increasingly selected for use on commercial and military aircraft due to their cost and weight benefits. Thin wall titanium and aluminum cast components have replaced many heavy complicate and manufacturing intensive, multipiece parts. Thick investment cast parts weighing up to 400 lb have become a reality. Also, welded titanium castings are being implemented on newly developed military aircraft. However, several issues critical for the …
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[/table]

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[tr][td=2,1]An Experimental Evaluation of the Fatigue Behavior of AH36 Weld-Repaired Deck Sockets in a Simulated Marine Atmosphere[/td][td]
NOV 1998
[/td][td]
19 pages
[/td][/tr]
[tr][td=5,1]Authors: Michelle A. Gaudett; X. J. Zhang; NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD SURVIVABILITY STRUCTURES AND MATERIALS DIRECTORATE [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
Fatigue testing of specimens removed from weld-repaired deck sockets on the fast sealift ship was conducted to satisfy two objectives. The primary objective was to determine the shift in fatigue initiation behavior due to an intermittent salt spray environment. The secondary objective was to validate the fatigue initiation design curves used in the fatigue analysis of the ship deck structure. No effect of a salt spray schedule was observed within …
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[/table]

[/td][/tr]
[tr][td=2,1]Random Vibration Analysis of the XM2l Decontaminant Pumper Module of the Modular Decontamination System[/td][td]
FEB 1998
[/td][td]
29 pages
[/td][/tr]
[tr][td=5,1]Authors: Stephen J. Colclough; EDGEWOOD RESEARCH DEVELOPMENT AND ENGINEERING CENTER ABERDEEN PROVING GROUNDMD [/td][/tr]
[tr][td=6,1][table=98%]
[tr][td][/td][td]
The XM21 Decontaminant Pumper module of the Modular Decontamination System was analyzed using finite element analysis techniques to show why the first design iteration passed transportation vibration testing, the current design iteration did not, and whether the proposed changes to the system will pass. The baseplate in the current design developed a fatigue crack at a weld when vibration tested. The failure was caused by the switching of position between …
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[tr][td=2,1]The National Shipbuilding Research Program, Development and Evaluation of Improved Flux-Cored Welding Consumables, Phase 1[/td][td]
09 JAN 1998
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36 pages
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[tr][td=5,1]Authors: NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD [/td][/tr]
[tr][td=6,1][table=98%]
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The objective of NSRP Project #7-95-4 is to evaluate and develop an improved flux-cored wire for use in commercial shipbuilding that can be produced within the U.S. and is comparable or exceeds those available from foreign producers. This report deals with a portion of the first phase consisting of evaluating FCAW wires from U.S. and foreign manufacturers to identify the differences in weldability, arc characteristics and quality. The electrode evaluation …
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[tr][td=2,1]Defect Condemnation for Submarine Pressure Hull Welds[/td][td]
JAN 1998
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[tr][td=5,1]Authors: J. R. Matthews; J. F. Porter; T. MacAdam; DEFENCE RESEARCH ESTABLISHMENT ATLANTICDARTMOUTH (NOVA SCOTIA)
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[tr][td=6,1][table=98%]
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The British standards for submarine pressure hulls indicates that the presence of any lack of fusion defects in the weld is cause for rejection. However, depending upon the size and location of the defect, certain amounts of lack of fusion may be acceptable. Six explosion bulge test panels were welded to have lack of fusion flaws; two panels had root flaws and the other four had cap …
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[tr][td=2,1]Laser Based Method of Evaluating the Behavior of Surfaces and Surface Treatments at Transient High Temperatures and Pressures[/td][td]
MAR 1997
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111 pages
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[tr][td=5,1]Authors: V. E. Merchant; J. A. Hewitt; LASER INST EDMONTON (ALBERTA) [/td][/tr]
[tr][td=6,1][table=98%]
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A set of experiments were performed in order to test the ability of a laser based system to simulate the chemical and thermal effects inside a gun barrel. It is expected that a laser based system would be a relatively inexpensive method for testing various materials and coatings for eventual gun barrel use, and to the present time, there are no publicly documented systems capable of such testing. An extensive …
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[tr][td=2,1]Hydrogen and Preheat Management in Welded High Strength Steel for Defense Application. (TTCP Workshop and Joint Seminar). Volume I: Workshop Report[/td][td]
28 JAN 97
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137 pages
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[tr][td=5,1]Authors: D. L. Olson; J. L. Davidson; B. F. Dixon; COLORADO SCHOOL OF MINES GOLDEN [/td][/tr]
[tr][td=6,1][table=98%]
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A joint seminar and workshop on hydrogen management in high strength steel weldments were performed to assess the state of the art and science to assess the progress of the TTCP-S11 research activities, to make mid-course corrections to the research activities and to plan for technology transfer and round-robin tests. Achievement highlights, the reorganization of activities to promote cooperative research and operation plan are described.
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[tr][td=2,1]Hydrogen and Preheat Management in Welded High Strength Steel for Defense Application. (TTCP Workshop and Joint Seminar). Volume II: Joint Seminar Papers[/td][td]
28 JAN 97
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248 pages
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[tr][td=5,1]Authors: D. L. Olson; J. L. Davidson; B. F. Dixon; COLORADO SCHOOL OF MINES GOLDEN [/td][/tr]
[tr][td=6,1][table=98%]
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A joint seminar and workshop on hydrogen management in high strength steel weldments were performed to assess the state of the an and science to assess the progress of the TTCP-S11 research activities, to make mid-course corrections to the research activities and to plan for technology transfer and round-robin tests. Achievement highlights, the reorganization of activities to promote cooperative research and operation plan are described.
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[tr][td=2,1]Factors Affecting the Impact Toughness of Ultra Low Carbon Steel Weld Metal[/td][td]
SEP 96
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102 pages
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[tr][td=5,1]Authors: Mary E. Gwin; NAVAL POSTGRADUATE SCHOOL MONTEREY CA [/td][/tr]
[tr][td=6,1][table=98%]
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The fundamental factors affecting the impact toughness of four gas metal arc welds (GMAW) made on HSLA-100 base plate using a newly developed steel weld wire were studied. The weld metal analysis included chemistry, mechanical testing (hardness, CVN/FATT), as well as optical, scanning and transmission electron microscopy. Studies of inclusion composition using energy dispersive x- ray (EDX), and electron energy loss spectroscopy (EELS) in the transmission electron microscope were also …
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[tr][td=2,1]Acoustic Radiation Efficiency Models of a Simple Gearbox[/td][td]
SEP 96
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7 pages
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[tr][td=5,1]Authors: Mark F. Jacobson; Rajendra Singh; Fred B. Oswald; NATIONAL AERONAUTICS AND SPACE ADMINISTRATION CLEVELAND OH LEWIS RESEARCH CEN TER [/td][/tr]
[tr][td=6,1][table=98%]
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Acoustic intensity measurements were conducted on a simple spur gear transmission in a welded steel housing. The radiation efficiency of the housing was computed from the intensity data for the first three harmonics of mesh frequency. Finite element and boundary element methods (FEM/BEM) were used jointly to model acoustics and dynamics of the top plate of the housing. For a simply supported elastic plate, reasonable agreement was achieved between experimental …
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[tr][td=2,1]X-Ray Diffraction Characterization of Process-Induced Residual Stress[/td][td]
SEP 96
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27 pages
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[tr][td=5,1]Authors: Daniel J. Snoha; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD [/td][/tr]
[tr][td=6,1][table=98%]
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The U.S. Army Research Laboratory - Materials Directorate (ARL-MD) has utilized the x-ray diffraction (XRD) method of residual stress analysis (RSA) to characterize process-induced residual stress on a variety of polycrystalline metal and ceramic materials. As part of the mechanical failure investigation, modem XRD RSA techniques provide a direct means for quantifying residual stress at the component surface - the location at which most fatigue and stress corrosion cracks originate. …
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[tr][td=2,1]The Hydrogen-Induced Cracking Resistance of Consumables for Use in the Fabrication of the COLLINS Class Submarines[/td][td]
JUL 96
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[tr][td=5,1]Authors: James L. Davidson; AERONAUTICAL AND MARITIME RESEARCH LAB MELBOURNE (AUSTRALIA)
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[tr][td=6,1][table=98%]
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A MIL-121TM flux cored arc welding consumable, Alloy Rods Dualshield(registered) II 120-M2, has recently been qualified for use in the fabrication of the pressure hull of the Royal Australian Navy COLLINS class submarines. Gapped bead on plate testing has been carried out to compare the hydrogen-induced cracking resistance of welds produced using the flux cored arc consumable with welds produced using the manual metal arc and submerged arc consumables currently …
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[tr][td=2,1]Beam Shear Design with Welded Wire Fabric: ACI 318 vs. AASHTO LRFD[/td][td]
APR 96
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[tr][td=5,1]Authors: Brian A. Green; RENSSELAER POLYTECHNIC INST TROY NY
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[tr][td=6,1][table=98%]
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Since 1963, the shear design of reinforced and prestressed concrete beams has become unnecessarily complicated. There are currently two different procedures used to design and detail the steel shear reinforcement in concrete beams. The first method, used by the American Concrete Institute (ACI), is purely empirical. Their current design guide, the Building Code Requirements for Structural Concrete (ACI 318-95) and Commentary (ACI 318R-95) uses the results of beam tests to …
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[tr][td=2,1]The National Shipbuilding Research Program. Square Butt Pipe Welding[/td][td]
APR 1996
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76 pages
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[tr][td=5,1]Authors: J. Langhelm; James Scheltens; PUGET SOUND NAVAL SHIPYARD BREMERTON WA QUALITY ASSURANCE DIV [/td][/tr]
[tr][td=6,1][table=98%]
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The main objective of this project was the development of welding techniques and procedures to economically weld fabricate pipe. X-ray quality full penetration square butt weld joints were expected. Significant cost savings can be achieved through the reduction in pipe fitting and welding man-hours by utilization of a saw cut square butt joint design. The investigation of the various weld techniques and joint configurations are detailed in this final report …
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[tr][td=15%]Total Results: 926
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