Award Data

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RECENT ADVANCES IN THE FORMULATION AND PROCESSING OF HIGH CRITICAL TEMPERATURE (HIGH TC) SUPERCONDUCTING MATERIALS PRESENT THE OPPORTUNITY OF PRODUCING COMPONENTS SUCH AS INTEGRATED CIRCUITS, SENSORS, SUPERCONDUCTING QUANTUM INTERFERENCE DEVICES (SQUID), MICROWAVE GENERATORS AND DETECTORS, MICROWAVE STRIP LINES, POWER TRANSFORMERS AND MOTORS CAPABLE OF OPERATION WITH LOW POWER LOSSES AT TEMPERATUR ...

THERE IS AN ESTABLISHED NEED FOR A SIMPLE ROBUST TRANSDUCER TO MEASURE PARTICLE VELOCITY IN SEVERE BLAST AND SHOCK ENVIRONMENTS SUCH AS NUCLEAR AND HIGH EXPLOSIVE TESTS. A GAGE CONCEPT IS PROPOSED FOR DEVELOPMENT, BASED ON THE PROVEN MEASUREMENT PRINCIPLES USED IN THE HIGHLY SUCCESSFUL DX GAGE, BUT RECONFIGURED MECHANICALLY AND ELECTRICALLY TO WITHSTAND THE HARSH SHOCK ENVIRONMENTS. THE CONCEPT RE ...

HIGH RANGE (200,000 G) ACCELEROMETERS ARE THE ONLY TRANSDUCERS THAT PROVIDE THE REQUIRED LONG-TERM DATA IN THE ENVIRONMENTS OF INTEREST TO THE BLAST AND SHOCK COMMUNITY. THESE GAGES HAVE A VERY LARGE DYNAMIC RANGE AND NOISE OFTEN MASKS THE LATE TIME (BUT EXTREMELY IMPORTANT) DATA. WE PROPOSE TO DEVELOP A CLOSE COUPLED LOGARITHMIC GAIN SIGNAL CONDITIONING SYSTEM THAT WILL CORRECT THE LATE TIME NOIS ...

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THE NUMBER OF STABLE, INEXPENSIVE ANODE MATERIALS AVAILABLE FOR THE ELECTROSYNTHESIS OF CHEMICALS IS QUITE LIMITED. A SERIES OF HIGH SURFACE AREA CARBONS AND GRAPHITES ARE PROPOSED AS NEW ANODE MATERIALS FOR A VARIETY OF ELECTROCHEMICAL PROCESSES. THESE MATERIALS HAVE BEEN FOUND TO BE STABLE IN STRONGLY ACIDIC MEDIA AT HIGH OXIDATION POTENTIALS. THE EFFECTIVENESS OF THE HIGH SURFACE ELECTRODES VS. ...

CURRENT NUMERICAL COMPUTATIONS TO DESCRIBE NUCLEAR GROUND SHOCK ENVIRONMENTS, NUCLEAR CRATER FORMATION, IMPACT DYNAMICS AND PENETRATION MECHANISMS PRESENTLY EMPLOY EULERIAN-BASED FINITE DIFFERENCE CODES BECAUSE OF THEIR ABILITY TO MODEL THE MASS FLUX PHENOMENA IN TRACKING MATERIAL MOVEMENT THROUGH THE DISCRETIZED SPACE. THE FINITE DIFFERENCE CODES SUFFER IN COMPARISON TO FINITE ELEMENT CODES, HOWE ...

A RESEARCH PROJECT IS PROPOSED TO EXAMINE THE USE OF SUPERCOMPUTERS TO SOLVE LARGE SCALE MATHEMATICAL PROGRAMMING PROBLEMS. MODELS OF THAT TYPE ARE WIDELY USED FOR PLANNING PURPOSES IN INDUSTRY AND GOVERNMENT BUT TEND TO BECOME VERY LARGE. THE USE OF PARALLEL AND/OR VECTOR PROCESSING IS AN ATTRACTIVE OPTION FOR INCREASING PROBLEM-SOLVING CAPABILITY. KETRON MANAGEMENT SCIENCE, INC. PROPOSES TO EXAM ...

DYNAMIC SEAL PERFORMANCE CAN BE IMPROVED BY FAVORABLY CONTROLLING THE FLUID PRESSURE BETWEEN THE TWO SLIDING SURFACES. FAVORABLE CONTROL OF FLUID PRESSURE IN THE MIXED FRICTION REGIME CAN LEAD TO REDUCED GROSS WEAR AND REDUCED FRICTION. IN TRADITIONAL DESIGN THE DETAIL OF THE MIXED FRICTION LUBRICATION IS LEFT TO THE INHERENT CHARACTERISTICSOF THE MATERIALS THEMSELVES. BY ALTERING MATERIAL PROPERT ...

Using distributed interactive simulation (DIS) to conduct effective training, analyses, or mission support in a tactical nuclear weapons effects (NWE) environment requires realistic computer generated forces (CGF) that are sensitive to such effects. This level of sensitivity requires CGF to apply valid and reliable speed-accuracy measures of environmental effects on human performance within the D ...