Award Data

NONLINEAR OPTICAL MATERIALS ARE REQUIRED FOR A VARIETY OF POTENTIAL AIR FORCE APPLICATIONS INCLUDING OPTICAL SIGNAL PROCESSING (SWITCHES, MODULATORS, AND GUIDED WAVE DEVICES), AND NEW LASER SOURCES (OPTICAL PARAMETRIC OSCILLATORS AND HARMONIC GENERATORS). HOWEVER, PRESENTLY AVAILABLE MATERIALS ARE UNSATISFACTORY FOR MANY APPLICATIONS DUE TO SMALL NONLINEARITIES, POOR OPTICAL CLARITY, LONG RESPONSE ...

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Simulation provides a means of duplicating the operating environment of a topic of interest in a laboratory setting, but the environment itself is rarely the topic of interest. Providing the simulated environment requires access to personnel with expertise in the environment but without expertise in the topic actually to be studied, consuming resources but only providing the means to complete the ...

WE PROPOSE AN EFFICIENT AND COST-EFFECTIVE QUERY PROCESSING COMPONENT FOR AN INFORMATION RETRIEVAL SYSTEM BASED ON THE USE OF NETWORKED MICROCOMPUTERS AS A LOOSELY-COUPLED NETWORK DATABASE. THE QUERY PROCESSSING SYSTEM WILL WORK ON BOTH LOCAL AND WIDE AREA NETWORKS AND CAN BE USED WITH ANY METHOD OF INFORMATION RETRIEVAL. WE PROPOSE TO: 1. MODEL THE EXPECTED PERFORMANCE OF THIS SYSTEM SO THAT IT M ...

The use of cryogenic solid hydrogen as a rocket propellant may lead to major advances in rocket propulsion. To use solid hydrogen as a propellant requires a system designed to solidfy, store, and transport hydrogen. We propose to study different methods for creating H2 for more than one hour at temperature less than 10 K. Alternative methods of delivering the solid hydrogen to the combustion chamb ...

AN INNOVATIVE INTEGRAL DIELECTRIC HEAT SINK MATERIAL, DIAMOND/CARBON/CARBON COMPOSITE, IS PROPOSED IN THIS PHASE I RESEARCH FOR THE USE IN FUTURE ADVANCED ELECTRONIC DEVICES. CARBONE/CARBONE COMPOSITE HAS A HIGHER THERMAL CONDUCTIVITY AND LOWER DENSITY, AND THEREFORE A HIGHER SPECIFIC THERMAL CONDUCTIVITY, AS COMPARED TO METALS. HOWEVER, CARBON IS ALSO AN ELECTRIC CONDUCTOR. WE PROPOSE TO APPLY DI ...

THE EXISTING METHODOLOGY OF DESIGN AND FABRICATION OF SEMICONDUCTOR MANUFACTURING EQUIPMENT IS AN EXPENSIVE AND TIME CONSUMING PROCESS. TO KEEP PACE WITH THE RAPIDLY ADVANCING SEMICONDUCTOR INDUSTRY, IT IS NECESSARY TO DEVELOP A COMPUTER BASED ENVIRONMENT TO QUICKLY SIMULATE THE FEATURES OF THE MANUFACTURING EQUIPMENT BEFORE IT IS TURNED INTO A PHYSICAL PROTOTYPE. APART FROM ACHIEVING CONSIDERABLE ...

ADVANCED ENGINE TECHNOLOGY AND HYPERSONIC FLIGHT SPEEDS OF FUTURE MILITARY AIRCRAFTS PLACE INCREASING HEAT LOAD ON JET FUELS. THE INCREASE IN HEAT LOAD PUSH THE OPERATION OF FUELS INTO THEIR SUPERCRITICAL REGIME. THE PERFORMANCE OF FUTURE AIRCRAFT WILL BE SERIOUSLY LIMITED IF FUELS CANNOT BE OPERATED EFFECTIVELY AT SUPERCRITICAL CONDITIONS. THE PRECOMBUSTION CHEMISTRY AND TRANSPORT PROCESSES AT TH ...

For sustained high speed flight (Mach 3-6), recent studies have shown that endothermic fuels are required to cool aircraft systems. Such a cooling system would deliver fuel to the ramburner in varying amounts of liquid and gaseous phases. This project proposes to experimentally investigate and develop an innovative dual-phase fuel injector prototype suitable for crossflow injection in ramburners. ...