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THE OVERALL OBJECTIVE OF THE PHASE I EFFORT WILL BE TO PROVIDE ESTIMATES OF THE AVAILABILITY, COST AND QUALITY OF NAPHTHENIC HYDROCARBON FUELS FOR ADVANCED HYPERSONIC VEHICLE PROPULSION AS A FUNCTION OF TIME. A PRELIMINARY SPECIFICATION FOR AN OPTIMISED NAPHTHENIC FUEL WILL BE AGREED UPON. POTENTIAL FEED STOCKS AND PROCESSING ROUTES TO PROVIDE THE FUEL WILL BE SURVEYED AND SELECTED. SMALL SAMPLES ...

THE PROPOSAL DESCRIBES THE IMPROVEMENTS THAT CAN BE MADE USING EXPANDING MONOMERS IN COATING COMPOSITIONS FOR AIRCRAFT TRANSPARENCIES SUCH AS THOSE USED IN POLYCARBONATE WINDOWS. IT SHOWS HOW THE BONDING BETWEEN THE COATING FILM AND THE SUBSTRATE CAN BE MADE EXTREMELY INTIMATE SO THAT CHANGES IN TEMPERATURE, PRESSURE AND HUMIDITY DO NOT RESULT IN DELAMINATION OR DESTRUCTION OF COATING PROPERTIES. ...

THIS PROJECT IS CONCERNED WITH RESEARCH RELATED TO THE DESIGN AND PROTOTYPE DEVELOPMENT OF AN OPTICALLY CONTROLLED PHASED ARRAY ANTENNA. THE SYSTEM WILL OPERATE IN THE MICROWAVE AND MILLIMETER WAVE FREQUENCIES. IT WILL UTILIZE MONOLITHIC MICROWAVE CIRCUITS AND FIBEROPTIC DISTRIBUTION SYSTEM.

MODULATION DOPED FETS ON HETEROSTRUCTURE LAYERS (SDHT, HEMT, TEGFET, MODFET) ARE OF PRIME INTEREST FOR FUTURE HIGH SPEED CIRCUITS WITH IMPROVED PERFORMANCE CHARACTERISTICS. CIRCUITS BASED ON SDHT TECHNOLOGY HAVE DEMONSTRATED SUPERIOR PERFORMANCE IN SPEED AND SPEEDPOWER PRODUCT IN DIGITAL, AS WELL AS, LOW-NOISE MICROWAVE APPLICATIONS. DIGITAL SWITCHING TIMES OF AS SHORT AS 6PS HAVE BEEN REALIZED, T ...

THIS IS A TWO-OBJECTIVE PROPOSAL TO STUDY THE OXIDATION OF HIGH TEMPERATURE COMPOSITE MATERIALS (HTC'S) IN A GAS/SOLID REACTION STAGE OF A SCANNING ELECTRON MICROSCOPE (SEM) AT TEMPERATURES UP TO 1600 DEG C (2912 DEG F), AND TO DESIGN A LASER HEATING SYSTEM FOR THE SEM TO EXTEND ITS RANGE TO 3000 DEG C (5432 DEG F). THE OXIDATION STUDIES WILL PRODUCE REAL-TIME VIDEOTAPES OF HTC'S UNDERGOING OXIDAT ...

ADVANCED TECHNOLOGY IS NEEDED TO BROADEN THE TEMPERATURE RANGE OF ENGINEERING PLASTICS FOR CHEMICAL, THERMAL AND FLUID AGING STABILITY OF SEALING MATERIALS OF THE O DEG C. TO 400 DEG C. TEMPERATURE RANGE. CONVENTIONAL MATERIALS USED FOR THIS PURPOSE SUFFER FROM ONE OR MORE OF THE FOLLOWING LIMITATIONS: THEY DO NOT HAVE ADEQUATE THERMAL STABILITY; THEY ARE NOT EASILY PROCESSABLE AND LACK THE REQUIR ...

TECHNIQUES EXIST TO EXTRACT HARMONIC STRUCTURES UNDERLYING SPECIAL SIGNALS THAT ARE UNAVAILABLE FROM THE CONVENTIONAL FFT. THIS PROPOSAL, BASED ON INITIAL RESULTS, IDENTIFIES THOSE TECHNIQUES AND SUGGESTS HOW THEY MAY BE USED FOR SPECIAL TARGET RECOGNITION, AND CERTAIN TYPES OF SPREAD SPECTRUM DETECTION.