Abstract:PHASE I WILL EXPLORE NOVEL WAYS TO APPLY IMPROVED TECHNIQUES USING THE IEEE/ DOD STANDARD VHSIC HARDWARE DESCRIPTION LANGUAGE (VHDL) TO INTEGRATED ENGINEERING METHODS. IN PARTICULAR, IT WILL ENABLE HARDWARE AND SOFTWARE ENGINEERS TO COLLABORATE SIMULTANEOUSLY DURING DEVELOPMENT OF PARALLEL COMPUTING… more
Abstract:THE PERFORMANCE AND DURABILITY OF AIR-BREATHING ENGINES ARE SENSITIVE TO THE ENVIRONMENT IN WHICH THEY OPERATE. IN THE CASE OF TURBOMACHINERY OPERATING WITH PARTICULATE-LADEN AIR, VERY SERIOUS DEGRADATION OF ENGINE PERFORMANCE AND LIFE CAN OCCUR. THE OBJECTIVE OF THIS PROGRAM IS TO EVALUATE TWO… more
Abstract:MODERN TURBOSHAFT ENGINE CONTROL COMPONENTS ADDRESS SUCH PARAMETERS AS PRESSURE, TEMPERATURE, SHAFT SPEED, FUEL FLOW, AND THE POSITION OF VARIABLE GEOMETRY COMPONENTS. HOWEVER, ELECTRONIC CONTROL COMPONENTS ARE SUSCEPTIBLE TO ELECTROMAGNETIC INTERFERENCE, AND SHIELDING CARRIES SUBSTANTIAL PENALTIES… more
Abstract:THE RESULTS OBTAINED TO DATE BY VARIOUS AUTHORS INDICATE CLEARLY THAT NUMERICAL SOLUTIONS ARE MORE ACCURATE AND REQUIRE LESS COMPUTER TIME AND STORAGE WHEN GRID NODES ARE PROPERLY DISTRIBUTED. THE OBJECTIVE OF THIS PROJECT IS TO DEVELOP A NEW METHODOLOGY FOR GENERATING SOLUTION ADAPTIVE GRIDS. OVER… more
Abstract:THE OBJECTIVE OF THE PROPOSED PROJECT IS TO DEVELOP COURSEWARE TO ENHANCE STUDENT UNDERSTANDING OF FLUID DYNAMIC CONCEPTS AND HIS/HER AWARENESS OF COMPLEX PHENOMENA. THE COURSEWARE WILL BE BASED ON AN EXISTING FLUID FLOW MODELING COMPUTER PROGRAM. DEVELOPMENT AND DEMONSTRATION OF ONE CLASSROOM FLUID… more
Abstract:A MEASUREMENT INSTRUMENT CAPABLE OF NON-OBTRUSIVELY DETERMINING THE THICKNESS OF A LAYER OF ICE OVER A BODY OF WATER WILL BE DESIGNED AND DEVELOPED. THE INSTRUMENT WILL BE A ONE-PERSON PORTABLE, COMPLETELY SELF-CONTAINED MEASUREMENT SYSTEM. THE INSTRUMENT WILL FEATURE EASE OF MEASUREMENT, VIRTUAL… more
Abstract:IN THIS PROJECT WE PROPOSE TO DEVELOP AN ADVANCED COMPUTATIONAL FLUID DYNAMICS CODE TO AIDE IN THE DESIGN OF HIGHLY LOADED HIGH MACH NUMBER CENTRIFUGAL COMPRESSORS. AN ADVANCED CODE, RAMPANT 1.0, HAS ALREADY BEEN DEVELOPED BY CREARE.X TO PERFORM COMPRESSIBLE FLOW SIMULATIONS IN A WIDE VARIETY OF… more
Abstract:IRRADIATION WITH IONIZING RADIATION, SUCH AS HIGH-ENERGY ELECTRONS, IS THE MOST POWERFUL MEANS AVAILABLE FOR THE DISINFECTION OF WASTEWATER. THE EFFECTIVENESS OF E-BEAMS FOR THIS PURPOSE HAS BEEN DEMONSTRATED, AND PARTICULARLY IN A LANDMARK INVESTIGATION COMPLETED IN 1980. HOWEVER, ALTHOUGH SOME… more
Abstract:PULSED HIGH VOLTAGE APPLIED TO ELECTRODES IMMERSED IN THE WATER STREAM CREATES HIGH POTENTIAL GRADIENTS IN THE WATER VOLUME BETWEEN THE ELECTRODES. THESE GRADIENTS - OF THE ORDER OF 20 KV/CM, OR MORE - HAVE A BACTERICIDAL ACTION. IN ADDITION, OZONE CAN BE GENERATED THROUGHOUT THE VOLUME… more
Abstract:THE GOAL OF THIS PROJECT IS TO DESIGN A VISUAL/AUDIO SYSTEM THAT WILL ENHANCE THE ABILITY OF THE AGED, INFIRM AND BEDRIDDEN TO RECEIVE VISUAL AND AUDIO INFORMATION. THE PROJECT WILL INVESTIGATE THE USE OF A KINOFORM LENS AS AN ELEMENT OF A HOMECARE PRODUCT FOR THE VISUALLY HANDICAPPED. THE USE OF… more
Abstract:THIS STUDY WILL INVESTIGATE CAFFEINE AND METHACETIN BREATH TESTS IN NORMAL VOLUNTEERS AND VALIDATE THE USE OF THE TESTS FOR ASSESSING HEPATIC CYTOCHROME P450-IA2 ACTIVITY. THE EFFECT OF CHARCOAL BROILED BEEF AND CHANGES IN PROTEIN/CARBOHYDRATE RATIO ON THE HEPATIC METABOLISM OF THESE SUBSTRATES WILL… more
Abstract:A NOVEL CLASS OF MATERIAL HAS BEEN DISCOVERED THAT EXHIBITS NON-MAGNETIC BEHAVIOR IN ITS NATIVE (SUB 50A) STATE, BUT WHEN ASSEMBLED INTO CLUSTERS OF ABOVE 500A IN DIAMETER EXHIBITS SUPERPARAMAGNETIC BEHAVIOR. MATERIALS OF THIS TYPE CAN BE PREPARED AS BIODEGRADABLE 500A CLUSTERS, INJECTED INTO… more
Abstract:WE HAVE DEVELOPED A HOLOGRAPHIC DEVICE THAT GREATLY IMPROVES THE EFFICIENCY OF SOLAR ENERGY GENERATION. THE SINGLE-ELEMENT HOLOGRAM FOCUSES LIGHT TO THE SIDE AND ALSO SPECTRALLY SPLITS IT. THE OUTPUT APPEARS AS A THIN, CONCENTRATED LINE FOCUS PERPENDICULAR TO THE HOLOGRAM AND DISPLACED TO THE SIDE.… more
Abstract:THIS PROJECT IS TO DEVELOP A NEW METHOD OF FABRICATING LONG LENGTHS OF PIPE FROM EXOTIC METALS. THE METHOD IS PARTICULARLY ATTRACTIVE FOR METALS THAT ARE DIFFICULT TO WORK WITH BECAUSE OF BRITTLENESS OR EXTREMELY HIGH SOFTENINGTEMPERATURES. FOR DOE, THE NEW TECHNIQUE IS TO BE APPLIED TO THE… more
Abstract:WE PROPOSE USING AN INNOVATIVE STIRLING COOLER FOR SHIPBOARD REFRIGERATION. THIS DESIGN ELIMINATES THE FRICTTON, WEAR, AND SEAL LEAKAGE PROBLEMS OF CURRENT STIRLING COOLERS, AND WILL PROVIDE A HIGH RELIABILITY, LONG-LIFE REFRIGERATOR. THE USE OF NEAR AMBIENT PRESSURE AIR AS THE WORKING FLUID MAKES… more
Abstract:SATELLITE-BORNE INFRARED SENSORS PLAY A KEY ROLE IN ANY STRATEGIC DEFENSE ARCHITECTURE. OUR CONCEPT FOR A CRYOGENIC HEAT PIPE DIODE TRANSFERS HEAT FROM A CRYOGENIC FOCAL PLANE ARRAY TO ACTIVE CRYOCOOLERS OR A CRYOGENIC RADIATOR. THE HEAT PIPE DIODE CONTAINS AN INNOVATIVE MICROMACHINED WICK WHICH… more
Abstract:AS SPACE SYSTEMS TEND TOWARD HIGHER POWER LEVELS (10 TO 100 KW), THE BUS CONNECTING THE POWER SOURCE WITH THE SPACECRAFTBECOMES A VERY SIGNIFICANT POWER DISTRIBUTION COMPONENT IN TERMS OF WEIGHT, RELIABILITY, AND EFFICIENCY. PRESENT APPROACHES USE EITHER MASSIVE, HIGH-VOLTAGE, CONVENTIONAL COPPER… more
Abstract:THIS PROJECT, IN PHASE I, WILL DEVELOP THEORY AND DEFINE THEREQUIREMENTS OF ENGINEERING SOFTWARE AND AN ENGINEERING MANUAL FOR THE MORE CHALLENGING DESIGN ASPECTS OF CRYOGENIC-FLUID MANAGEMENT SYSTEMS. PARTICULAR ATTENTION WILL BE GIVEN TO FLUID- AND THERMAL-MANAGEMENT ISSUES, GIVENTHAT THE… more
Abstract:THE AUXILIARY BEARINGS WILL BE CRITICAL COMPONENT OF ADVANCED GAS TURBINE ENGINES THAT USE MAGNETIC BEARINGS TO SUPPORT AND POSITION THE ENGINE SPOOLS. BECAUSE OF THE HIGH TEMPERATURES IN THE BEARING COMPARTMENTS, CONVENTIONAL OIL LUBRICATED BEARINGS CANNOT BE USED EITHER AS THE MAIN OR AUXILIARY… more
Abstract:THE GOAL OF THIS PROJECT IS TO DEVELOP A CASTING MACHINE FOR METALLIC NUCLEAR FUEL PINS SUITABLE FOR REMOTE OPERATION AND MAINTENANCE IN AN INTEGRAL FAST REACTOR (IFR) FUEL CYCLE FACILITY. THE MACHINE USES AN INNOVATIVE CASTING PROCESS THAT CONTINUOUSLY SOLIDIFIES MOLTEN FUEL DISCHARGED FROM A… 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.