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ELECTRO-OPTIC MATERIALS CONSISTING OF RANDOM DISPERSION OF NEMATIC LIQUID-CRYSTAL MICRODROPLETS EMBEDDED IN AN ISOTROPIC TRANSPARENT POLYMERIC MEDIA (OR POLYMER DISPERSED LIQUID CRYSTALS (PDLC)) WERE DEVELOPED AT ADVANCED SURFACE TECHNOLOGY, INC. (AST) FOR USE IN OPTICAL AND ELECTRO-OPTICAL DEVICES. PDLC MATERIALS CAN BE APPLIED AS A TUNABLE OPTICAL FILTER WHICH CAN RESPOND TO AN ELECTRIC FIELD AN ...

THE EXHAUST GASES LEAVING AN AIRCRAFT THAT IS FLYING AT ALTITUDES IN THE HIGH TROPOSPHERE AND LOWER STRATOSPHERE (30,000 TO 60,000 FT) ARE SUBJECT TO COLD TEMPERATURES AS THEY MIX WITH THE AMBIENT AIR. AERODYNE RESEARCH, INC. (ARI) HAS RE- CENTLY MADE SIGNIF ICANT CONTRIBUTIONS IN TACKLING PHYSICAL AND TECHNICAL PROBLEMS RELATED TO CONTRAIL F ORMATION. UNDER NASA SPONSORSHIP, ARI HAS BEEN STUDYING ...

THE ABILITY TO LIFT HEAT FROM A SELECTED PORTION OF THE SPACECRAFT IS REQUIRED IN A NUMBER OF THERMAL MANAGEMENT TASKS FOR SPACED BASED SENSOR AND WEAPON SYSTEMS. THE PROPOSED EFFORT WILL DEVELOP THE THEORETICAL AND ANALYTICAL FRAMEWORK TO ASSESS THE UTILITY AND FEASIBILITY OF A HOT PISTON PULSE TUBE VUILLEUMIER REFRIGERATOR. THE EFFORT WILL IDENTIFY A BASELINE APPLICATION FOR THE PROPOSED CONCEPT ...

NEW TECHNIQUES HAVE BEEN DEVELOPED OVER THE PAST 36 MONTHS THAT OFFER SIGINIFICANT POTENTIAL FOR ON-BOARD MONITORING OF MECHANICAL SYSTEMS TO DETECT AND CLASSIFY INCIPENT FAILURES. MANY ARE BASED ON THE WAVELET TRANSFORM, AND ITS EXTENSION TO THE WAVE PACKETS TRANSFORM. ALL PROVIDE A MEANS TO ISOLATE CHANGES IN SIGNAL STRUCTURE IN TERMS OF SCALE AS WELL AS IN TERMS OF TIME. THIS EFFORT PROPOSES TW ...

IT IS PROPOSED THAT ADVANCED ARCJET ENGINES CAN BE DEVELOPED USING KNOWN PRINCIPLES FOR ADVANCED NOZZLE DESIGN, ARC ATTACHMENT, INCREASED CHAMBER EFFECTIVE TEMPERATURE AND SO FORTH. SUCH STUDIES ARE PARTIALLY SUPPORTED BY EXPERIMENTAL RESULTS BY RESEARCHERS IN THE RUSSIAN FEDERATION. YET THESE PRINCIPLES RESULT IN INCREASED HEATING OF THE ANODE, AS THE ARC MORE EFFECTIVELY HEATS THE ANODE. THIS CA ...

BIMODAL REACTORS FOR POWER AND PROPULSION HAVE LONG BEEN OF INTEREST FOR MISSIONS REQUIRINGS BOTH HIGH POWER AND LARGE DELTA-V; E.G., HIGH ALTITUDE, GEOSYNCHRONOUS AND PLANETARY MISSIONS. IT PROPULSIVE THRUST AND ELECTRIC POWER CAN BOTH BE SUPPLIED FROM THE SAME UNIT, A LARGE POTENTIAL SAVINGS CAN OCCUR. SUCH A REACTOR CAN BE DEVELOPED FROM A URANIUM CARBIDE FUELED THERMIONIC REACTOR WITH SINGLE C ...

ASPEN SYSTEMS PROPOSES AN INNOVATIVE APPARATUS FOR REMOTE MEASUREMENT OF CLOUD AND FOG PARAMETERS, SUCH AS WATER CONTENT. THIS LIDAR APPARATUS USES STATE-OF-THE-ART LASER TECHNOLOGY TO MEASURE THE PROPERTIES OF A CLOUD OR FOG (CONSTITUENT, WATER DROPLET SIZE AND CONCENTRATION) REGARDLESS OF AMBIENT LIGHT CONDITIONS (DAY OR NIGHT) OR LOCATION OF DEPLOYMENT (GROUND BASED OR AIRBORNE). THE PROPOSED L ...

ASPEN SYSTEMS PROPOSES TO DEVELOP HIGH DIECTRIC CONSTANT (K) SELENIUM POLYMERS TO MEET THE DESIGN OBJECTIVES OF HIGH ENERGY DENSITY CAPACITORS (HEDC) FOR ENERGY STORAGE IN PULSED POWER SYSTEMS (15 TO 45 MJ/kg). IN THE PROPOSED PHASE I WEL WILL SYNTHESIZE HIGHLY PROCESSABLE, Se BASED POLYMERS AND FABRICATE SAMPLES OF FILM FOR DIELECTRIC ANALYSIS. INITIAL, RIGOROUS CALCULATIONS HAVE BEEN PERFORMED B ...

THIS PROPOSAL SEEKS TO ESTABLISH THE FEASIBILITYOF APPLYING NEWLY DEVELOPED MORPHOLOGY-BASED IMAGE SCREENING AND DETECTION ALGORITHMS TO THE MINERAL DEVELOPMENT SITE DETECTION PROBLEM IN PANCHROMATIC AND MULTISPECTRAL IMAGERY AND TO DESIGN AN OVERALL PROCEDURE FOR INTEGRATING THIS TECHNOLOGY INTO AN EFFECTIVE, PRACTICAL AND USER FRIENDLY IMAGE ANALYST TOOL. OUR UNIQUE MORPHOLOGICAL APPROACH ENABLE ...

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 ...