Award Data

THE USE OF OPTICAL SYSTEMS IN HIGH SPEED SIGNAL PROCESSING APPLICATIONS IS DESTINED BECAUSE OF THE OVERWHELMING ADVANTAGES OF PARALLEL DATA TRANSMISSION. MANY APPLICATIONS REQUIRE NONLINEAR TRANSFORMATIONS TO BE PERFORMED IN PARALLEL AT HIGH SPEED AND RESOLUTION. THE USE OF ORGANIC MATERIALS WITH LARGE OPTICAL NONLINEARITIES IS PARTICULARLY ATTRACTIVE BECAUSE OF THEIR FAST RESPONSE, BROADBAND TRAN ...

WIDESPREAD APPLICATION OF HIGH PERFORMANCE DEVICES BASED ON III-V, IV-IV, OR DIAMOND COMPOUND SEMICONDUCTORS WILL DEPEND ON THE DEVELOPMENT OF MANUFACTURING METHODS. RECENTLY, DR. MAX YODER OF ONR PROPOSED A RADICALLY NEW GROWTH SEQUENCE APPLICABLE TO THE GROUP IV SEMICONDUCTORS IN GENERAL AND TO DIAMOND IN PARTICULAR. FOR DIAMOND, IT IS ANTICIPATED THAT ALTERNATE INTRODUCTION OF CH4 AND CF4 TO TH ...

SOLID METAL FUELS CAN PROVIDE GREATER THRUST AND FUEL EFFICIENCY THAN LIQUID FUELS. BORON PARTICLES, A MOST ATTRACTIVE SOLID FUEL ON A THERMOCHEMICAL BASIS, IGNITE UPON EXPOSURE TO MOIST AIR AND UNDERGO A RAPID COMBUSTION WITH HIGH VOLUMETRIC HEAT RELEASE. UNFORTUNATELY, THIS REACTION IS SIGNIFICANTLY SLOWED BY IMPURITIES IN THE BORON AND BY THE FORMATION OF OXIDES UPON THE PARTICLE SURFACE DURING ...

THE ABILITY TO GROW HETEROSPITAXIAL THIN FILMS OF DIAMOND IS LIMITED IN PART BY THE PROPENSITY OF SUCH FILMS TO NUCLEATE AT MULTIPLE SITES WITHOUT PROPER ORIENTATION. WE PROPOSE TO DEVELOP A 2-DIMENSIONAL GROWTH PROCESS BY ATOMIC LAYER EPITAXY (ALE) USING ADVANCED MOLECULAR BEAM TECHNIQUES. THE PHASE I RESEARCH WILL FOCUS ON DETERMINING THE MICROCHEMISTRY OF DEPOSITION PROCESSES AND THUS ALLOW FOR ...

THE POLARIZATION CHARACTERISTICS OF AIRCRAFT INFRARED SIGNATURES HAVE BEEN STUDIED AS A MEANS TO ENHANCE THE PERFORMANCE OF LONG RANGE PASSIVE INFRARED DETECTION SYSTEMS OPERATING IN THE PRESENCE OF CLUTTER. THESE STUDIES ALSO GENERATED EVIDENCE THAT THE AMOUNT AND ANGLE OF POLARIZATION AS WELL AS ITS SPATIAL DISTRIBUTION ARE UNIQUE BETWEEN DIFFERENT TYPES AND CLASSES OF AIRCRAFT. IT MAY BE POSSIB ...

MODERN MILITARY OPERATIONS HAVE MADE IT NECESSARY FOR COMMANDERS TO HAVE RADIOLOGICAL INFORMATION CONCERNING NUCLEAR CONTAMINATION OF OCCUPIED AREAS. THIS INCREASING NEED FOR MORE ACCURATE AND RELIABLE INFORMATION FOR THE PURPOSE OF LOCATING AND IDENTIFYING POTENTIALLY HAZARDOUS NUCLEAR SOURCES, HAS LED TO NEED FOR IMPROVED INSTRUMENTATION. IN PARTICULAR, A NUCLEAR SURVEY INSTRUMENT WITH IMAGING C ...

WE PROPOSE TO DEVELOP A MEMBRANE-BASED EXTRATION PROCESS FOR THE RECOVERY OF ICING INHIBITOR ADDITIVE FROM WATER SEPARATED FROM JP-5 AVIATION TURBINE FUEL; THE TECHNOLOGY WILL ENABLE REBLENDING OF THE ADDITIVIE. THE NOVEL ELEMENT IN THE PROCESS CONSISTS OF A HOLLOWFIBER CROSSFLOW MEMBRANE CONTACTOR TO WHICH AN AQUEOUS FEED SOLUTION OF ANTI-ICING AGENT AND A SUITABLE WATER-IMMISCIBLE EXTRACTION FLU ...

IT IS PROPOSED TO ELUCIDATE ELECTROLYTIC CORROSION IN COOLING SYSTEMS OF THE TYPE EMPLOYED ON NAVY SHIPS FOR HIGH-POWER ELECTRONIC EQUIPMENT. DURING TRANSMISSION, VERY HIGH PULSED DC VOLTAGE DIFFERENCE IS EXPERIENCED BY OPPOSITE METAL HOSE FITTINGS, IN CONTACT WITH DEIONIZED WATER COOLANT. ANOMALOUSLY HIGH RATES OF CORROSION NECESSITATE AN EXPENSIVE FITTING AND HOSE REPLACEMENT PROGRAM. A MAJOR ST ...

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