Award Data

BECAUSE OF THE COMPLEXITY OF THE HELICOPTER FLOW FIELD, A ZONAL METHOD OF ANALYSIS OF COMPUTATIONAL AERODYNAMICS IS REQUIRED. IN THIS RESEARCH, A NEW PROCEDURE FOR COUPLING POTENTIAL AND VISCOUS FLOW CALCULATION SCHEMES IS PROPOSED. AN OVER-LAPPING, VELOCITY-COUPLING TECHNIQUE IS TO BE DEVELOPED WITH THE UNIQUE FEATURE THAT THE POTENTIAL FLOW SURFACE SINGULARITY STRENGTHS ARE OBTAINED DIRECTLY FRO ...

N/A

MICROWAVE RADIO CORPORATION PROPOSES TO PERFORM ADEQUATE STUDY AND TESTING TO SPECIFY A FORM, FIT, AND FUNCTIONAL REPLACEMENT FOR THE TWT AMPLIFIER IN THE AN/FRC-173(V) DRAMA RADIO.

ON-SITE VERIFICATION HAS EMERGED AS AN INTEGRAL PART OF ANY AGREEMENT REACHED BETWEEN THE UNITED STATES AND THE SOVIET UNION UNDER THE STRATEGIC ARMS REDUCTION TALKS (START). THIS IS AN ESPECIALLY IMPORTANT CONSIDERATION WHEN FORMULATING OPERATIONAL PROCEDURES FOR THE IMPLEMENTATION OF REENTRY VEHICLE (RV) COUNTING RULES. CONFIRMATION OF THE NUMBER OF RVS ON A DEPLOYED MISSILE SYSTEM REQUIRES PHYS ...

THE FREE ELECTRON LASER (FEL) REQUIRES A HIGH BRIGHTNESS, HIGH DUTY CYCLE ELECTRON BEAM. USE OF A PHOTOCATHODE, WHICH ELIMINATES BOTH GRIDAND BUNCHER AND ALLOWS HIGH GRADIENT RADIO FREQUENCY FIELDS AT THE ELECTRON SOURCE, CAN SUBSTANTIALLY IMPROVE THE BEAM BRIGHTNESS. FEL PHOTOCATHODES INVESTIGATED TO DATE (PRIMARILY CS:F:GAAS AND CS3SB) HAVE A SHORT EMISSION LIFETIME WHEN DRIVEN TO HIGH CURRENT A ...

ATOMIC LAYER EPITAXY (ALE) IS A PROMISING GROWTH TECHNIQUE. THE ATTRACTIVENESS OF ALE FOR FUTURE DEVICE AND INTEGRATED CIRCUIT APPLICATIONS CAN BE UNDERSTOOD BY CONSIDERING SEVERAL DESIRABLE ATTRI-BUTES FOR EPITAXIAL GROWTH TECHNIQUES. THESE INCLUDE LOWER DEFECT DENSITY, IMPROVED UNIFORMITY OF THICKNESS AND DOPING, IMPROVED THICKNESS CONTROL, AND THE POSSIBILITY OF CONFORMAL EPITAXY. A MAJOR PROBL ...

THIS STUDY INVESTIGATES A CONCEPT FOR IMPROVING THE AVERAGE POWER OF RADAR QUALITY CO2 TRANSMITTERS. DEFENSE APPLICATIONS INCLUDE LASER RADARS AND REMOTE SENSING. COMMERCIAL USES ARE INDUSTRIAL PROCESSES SUCH AS CUTTING, SCRIBING, AND MARKING, AS WELL AS REMOTE SENSING.

TRANSPIRATION COOLED NOSETIPS (TCNTS) FOR ICBM REENTRY VEHICLES OFFER SHAPE STABILITY, ENHANCED THERMAL/EROSION PERFORMANCE AND POTENTIAL DESIGN SOLUTIONS FOR HIGH STRENGTH AND SMALL RADIUS NOSETIPS. CURRENT TCNT DESIGN AND FABRICATION PROCESSES ARE TIME-CONSUMING AND EXPENSIVE, HAMPERING RESEARCH EFFORTS AND INHIBITING APPLICATION OF TCNTS TO REENTRY SYSTEMS. ADVANCED DESIGN AND FABRICATION METHO ...

RAPID FIRE HIGH VELOCITY AIRCRAFT GUN SYSTEMS HAVE MATURED TO THE POINT WHERE ONLY MARGINAL IMPROVEMENTS IN SYSTEM EFFECTIVENESS, WEIGHT REDUCTION, VOLUME REDUCTION, AND COST EFFECTIVENESS APPEAR ATTAINABLE. MOST OF THESE SYSTEMS ARE EXTERNALLY POWERED GATLING GUNS FIRING METALLIC CASED AMMUNITION, AND THESE COMPONENTS HAVE BENEFITED FROM OVER TWENTY-FIVE YEARS OF DESIGN REFINEMENTS AND MATERIAL I ...

A SELF-REGENERATIVE FEEDBACK TECHNIQUE IS BEING INVESTIGATEDTO SUPPRESS THE FORMATION OF SIDEBANDS THAT LIMIT THE SPECTRAL BRIGHTNESS AND GENERAL PERFORMANCE OF PRESENT HIGH-POWER FREE ELECTRON LASERS (FELS). THIS TECHNIQUE DOES NOT INVOLVE INTRA-CAVITY COMPONENTS THAT SUFFER LOSS DAMAGE DUE TO HIGH POWER OPERATION. A POTENTIAL BREAKTHROUGH IN FEL TECHNOLOGY, ANALYSIS AND SIMULATION ARE BEING PERF ...