Award Data

BY OPTIMIZING CONDITIONS, CONVENTIONAL ELECTRON BEAM BY OPTIMIZING CONDITIONS, CONVENTIONAL ELECTRON BEAM RESISTS, SUCH AS PBS, CAN BE USED TO PRODUCE GEOMETRIES IN THE 0.3 TO 0.5 MICRON RANGE IN A CONTROLLED MANNER, USING RASTER SCAN WRITING TECHNIQUES IN A LIMITED PRODUCTION ENVIRONMENT. IN ORDER FOR THESE PATTERNING TECHNIQUES TO BE USEFUL, THE DEFECT DENSITY OF THE FINAL PRODUCT MUST BE VERY T ...

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A NEW CAPABILITY FOR THE PREDICTION OF AERODYNAMIC CHARACTERISITIC OF POWERED-LIFT VEHICLES IS THE GOAL OF THISPROJECT. A PRESENTLY AVAILABLE AERODYNAMIC ANALYSIS COMPUTERCODE, VSAERO, IS APPLICABLE TO POWERED-LIFT AIRCRAFT CONFIGURATIONS. THE PROGRAM INCLUDES A METHOD WHICH CAN TREAT THE DIFFICULT GEOMETRIC SHAPES ASSOCIATED WITH SUCH CONFIGURATIONS AND HAS COUPLED ITERATIVE ROUTINES FOR VISCOUS/ ...

SUBSONIC AND TRANSONIC AERODYNAMIC ANALYSIS PROCEDURES HAVE BEEN DEVELOPED FOR APPLICATION TO CIRCULATION CONTROL AIRFOILS. WHILE THESE METHODS PERFORM WELL IN COMPARISON WITH EXPERIMENTS FOR LOW BLOWING COEFFICIENTS, AT HIGH BLOWING COEFFICIENTS, WITH THE NOZZLES CHOKED AND PRODUCING UNDEREXPANDED SUPERSONIC JETS, THE RESULTING SHOCK CELL STRUCTURE CANNOT BE PREDICTED BY THE PRESENT ANALYSES. A S ...

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THE DEVELOPMENT OF PASSIVE ACOUSTIC INSTRUMENTATION SYSTEMS AND TECHNOLOGY FOR REENTRY VEHICLE FLIGHT TEST MEASUREMENT OF HYDROMETER MASS AND NUMBER DENSITY IS PROPOSED.

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