Abstract:AN INNOVATIVE TECHNIQUE IS PROPOSED FOR DETERMINING THE S EVERITY OF MOTOR VEHICLE ACCIDENTS INVOLVING CRUSHING OF THEVEHICLE ROOF. AN INTERACTIVE METHODOLOGY WILL BE DEVELOPED WHICH WILL BE BUILT AROUND A MODEL OF THE VEHICLE MOTION DURING ROLLOVER AND SUBSEQUENT IMPACTS. THE MODEL WILL BE DRIVEN… more
Abstract:THE FEASABILITY OF CREATING A BRIDGE BETWEEN A MAP COMPUTER NETWORK AND A CAMAC MEASUREMENT AND CONTROL SYSTEM WILL BE INVESTIGATED. THE PROPOSED TECHNIQUE WILL BE TO USE A CAMACAUXILIARY CRATE CONTROLLER CONFORMING TO IEEE STD. 675. THENECESSARY MICROPROCESSOR HARDWARE AND SOFTWARE TO IMPLEMENT THE… more
Abstract:RECENT WORK HERE HAS DEMONSTRATED THAT SILICON NITRIDE CAN BE SUPERPLASTICALLY FORGED TO NEAR NET SHAPE. IN THIS PROPOSAL WE SEEK TO INVESTIGATE WHETHER FORGING ALSO IMPROVES THE RELIABILITY OF THE COMPONENTS. EXPERIENCE WITHHIGH TEMPERATURE METALLIC ALLOYS SHOWS THAT FORGING IMPROVESTHE… more
Abstract:AN APPROACH TO THE DESIGN, DEVELOPMENT AND FABRICATION OF A HIGH PRESSURE MICROSCOPE STAGE WITH FACILITIES FOR A TEMPERATURE RANGE OF MINUS 60 DEGREE CENTIGRADE TO PLUS 60 DEGREE CENTIGRADE IS DESCRIBED. THIS DESIGN IS EXPECTED TO ACHIEVE A MAXIMUM PRESSURE OF 20,000 PSI AND REQUIRE A SAMPLE VOLUME… more
Abstract:A CRITICAL NATIONAL NEED EXISTS FOR RADICALLY IMPROVED MACHINABLE GLASS-TO-METAL JOINTS FOR NUCLEAR AND OTHER APPLICATIONS. AT PRESENT, SUCH JOINTS ARE NOT AVAILABLE ON A RELIABLE, COST-EFFECTIVE BASIS. ADDITIONALLY, THEY ARE NOT SUFFICIENTLY STRONG OR REPRODUCIBLY VACUUM-TIGHT. THESEJOINTS ALSO DO… more
Abstract:UNDER A PREVIOUS AFWAL CONTRACT, AND UNDER INTERNAL SPONSORSHIP, LNR COMMUNICATIONS, INC. HAS DEVELOPED FOR ULTIMATE SPACEBORNE DOWNLINK USAGE AND DEMONSTRATED BRASSBOARD 10W AND 20W, 20GHZ IMPATT SOLID STATE POWER AMPLIFIERS (SSPA'S) WITH 1GHZ BANDWIDTH AND IN 4 AND 8WAY COMBINATORIAL… more
Abstract:GALLIUM ARSENIDE (GAAS) IMPATT DIODES HAVE GENERATED MORE RF POWER AND HIGHER CONVERSION EFFICIENCIES BOTH IN THE PULSED AND CONTINUOUS WAVE OPERATING MODE AND DEMONSTRATED BETTER RADIATION HARDENING, THAN ANY OTHER EHF SOLID STATE POWER GENERATING DEVICE. HISTORICALLY, SUBSTANTIAL DIFFICULTIES HAVE… more
Abstract:TO REDUCE THE COST OF THE EXISTING ANTENNA MAST AND TO IMPROVE ITS PERFORMANCE, A STUDY WILL BE ACCOMPLISHED THAT WILL EVALUATE BOTH THE MATERIALS AND THE MANUFACTURING PROCESS. AS A RESULT OF THE NEW MATERIALS DEVELOPMENTS IN INDUSTRY AND THE ACQUISITION OF THE ADVANCED SIX AXIS TAPE/FILAMENT… more
Abstract:THE LONG-TERM OBJECTIVE OF THIS PROJECT IS TO DEVELOP AND COMMERCIALIZE MODIFIED POLYNUCLEOTIDES AS ANTICANCER AND ANTIVIRAL DRUGS. POLY(I)MERCAPTOPOLY(C) IS SUPERIOR TO THE WELL-KNOWN INTERFERON INDUCER POLY(I)POLY(C). IN ITS ANTI- PROLIFERATIVE EFFECTS AGAINST HUMAN TUMOR CELLS, AS WELL AS IN ITS… more
Abstract:A MAJR PROBLEM FACING DEFENSIVE FORCES EXPOSED TO CHEMICAL AGENTS IS THE LACK OF AN ACCURATE METHOD FOR DETECTING THE ACTIVE LIFE REMAINING IN FILTERS. METHODS AVAILABLE TO-DATE ARE SLOW AND INVOLVE FAIRLYEXPENSIVE EQUIPMENT WHICH REQUIRE MORE THAN CASUAL FAMILARITY WITH CHEMICAL INSTRUMENTATION. IN… more
Abstract:IF THE RELEVANT RESERVOIR PARAMETERS WERE KNOWN PRECISELY, THEN ONE COULD SIMULATE THE ENHANCED OIL RECOVERY PROCESSES NUMERICALLY ON A COMPUTER TO TRACK THE INJECTED FLUIDS; UNFORTUNATELY, THIS IS NOT TRUE IN PRACTICE. HENCE THE ABILITY TO IDENTIFY THESE RESERVOIR PARAMETERS FROM THE PRESSURE… more
Abstract:THE ABILITY TO COMPUTE EFFICIENTLY THE SCATTERED ELECTROMAGNETIC WAVES (RADAR CROSS SECTION) BY A TARGET WITH COMPLEX GEOMETRY AND MATERIAL PROPERTY (INCLUDING ANISOTROPY, FINITE CONDUCTIVITY, ETC.) PLAYS A VERY IMPORTANT ROLE IN ADVANCED VULNERABILITY ANALYSIS FOR ANY POSTULATED AIRCRAFT. HENCE THE… more
Abstract:AND D-MYOINOSITOL-1,4,5-TRIPHOSPHATE AND THEIR ANALOGS THE LONG-TERM OBJECTIVE OF THIS PROPOSAL ARE: (1) TO DEVELOP A GENERAL METHOD FOR THE SYNTHESIS OF PHOSPHATIDYL- D-MYOINOSITOL-4,5-BISPHOSPHATE [PTDINS(4,5)P2] AS A KEY MATERIAL FOR THE PREPARATION OF D-MYO-INOSITOL-1,4,5- TRIPHOSPHATE [INS(1,4… more
Abstract:THIS PROJECT WILL DEVELOP A FASTBUS PREPROCESSING MODULE DESIGNED TO PROVIDE A PROGRAMMABLE MEANS OF CALIBRATING AND REDUCING LARGE STREAMS OF DATA FROM RELATIVELY UNINTELLIGENT DIGITIZER MODULES IN A FASTBUS CRATE. THIS THIS PROCESSOR WILL BE ABLE TO ELIMINATE DATA FROM EMPTY CHANNELS, PERFORM… more
Abstract:A DESIGN IS PROPOSED FOR A CRYOGENIC ACOUSTIC PROJECTOR FOR LOW FREQUENCY UNDERSEA COMMUNICATIONS OR SURVEILLANCE OVER LONG DISTANCES. ALTERNATIVELY THIS VIBRATIONAL POWER SOURCE COULD BE USED TO TEST THE PHYSICAL INTEGRITY OF STRUCTURES, TO DRIVE PILINGS, OR FOR OTHER INDUSTRIAL APPLICATIONS. ITS… more
Abstract:COMMERCIALLY AVAILABLE SUBNANOSECOND ELECTRICAL PULSERS SUFFER FROM TWO LIMITATIONS: LOW VOLTAGE LEVELS AND/OR CONSIDERABLE PULSE TO PULSE JITTER. A PULSER WHICH OVERCOME THESE LIMITATIONS WOULD OPEN UP NEW AVENUES OF RESEARCH IN DIVERSE AREAS, ESPECIALLY IN HIGH RESOLUTION RADAR AND RADAR TARGET… more
Abstract:THE EPIDERMAL GROWTH FACTOR RECEPTOR IS A 170,000 DALTON GLYCOPROTEIN COMPOSED OF THREE DOMAINS. THE CELL SURFACE DOMAIN BINDS EPIDERMAL GROWTH FACTOR (EGF) AND A LOW MOLECULAR WEIGHT, TUMOR-SPECIFIC GROWTH FACTOR (TGF ALPHA). AUTOCRINE STIMULATION OF THE EGF RECEPTOR OCCURS WHEN THE SAME TUMOR CELL… more
There are several categories such as “By Agency”, “By Year”, “By State” etc.
Select a checkbox within a category to refine your search results.
Each of your selections is listed in the “Narrow Search Filters” bar. You can uncheck these selections to remove them.
Search for Either Criteria
When you select multiple values within a category, the results will include values that match either of the selections.
For example, selecting “2005” and “2007” in the “By Year” category will display results that include either 2005 OR 2007 in the results.
Narrowing the Search Results
You can refine your search results across categories. To narrow down your results, select multiple values across different categories. The results will only include values that match the selections across the categories.
For example, selecting “2005” in the “By Year” category and “NASA” in the “By Agency” category will only display the results that contain both “2005” AND “NASA” in the results.