Award Data

COMMERCIAL AND GOVERNMENT SPACE TRANSPORTATION SYSTEMS DEPEND ON GROUND SUPPORT FOR NAVIGATION. THE GROUND SOLUTION CAN BE COSTLY AND MAY PROVIDE LESS ACCURACY THAN NEEDED. A GPS-BASED REAL-TIME AUTONOMOUS SPACECRAFT NAVIGATION SYSTEM IS PROPOSED. AN ALGORITHM WILL BE DEVELOPED WHICH COMBINES GPS-DERIVED POINT POSITION ESTIMATES WITH A PROPAGATED A PRIORI POSITION ESTIMATE. THE POINT POSITIONS ARE ...

ARTIFICIAL INTELLIGENCE/EXPERT SYSTEM TECHNIQUES HAVE DEMONSTRATED THE ABILITY TO ADDRESS COMPLEX REASONING TASKS REQUIRED FOR PROCESS PLANNING. FEATURE-BASED DESIGN THEORY AND PRELIMINARY EFFORTS HAVE SHOWN THE POTENTIAL OF PROVIDING A FUNDAMENTAL MODEL FOR CAPTURE AND MANIPULATION OF DESIGN KNOWLEDGE. HOWEVER, THE TWO TECHNOLOGIES HAVE NOT BEEN SUFFICIENTLY INTEGRATED TO ALLOW DESIGN FEATURES TO ...

A NEED EXISTS TO MONITOR VIBRATION IN HIGHWAY BRIDGES. IT IS DESIRABLE TO MONITOR MANY POINTS ON THE BRIDGE. THE CURRENT PROBLEM IS THAT SENSORS MUST BE WIRED TO A CENTRAL LOCATION. WIRE IS DIFFICULT TO INSTALL AND TO MOVE. THE SOLUTION IS TO COLLECT SENSOR DATA BY RADIO. A SYSTEM EXISTS THAT ELIMINATES WIRE. IT GATHERS SENSOR DATA TO A CENTRAL LOCATION BY RADIO. THE SYSTEM'S UNIQUE FEATURE IS THA ...

DESIGN, SIMULATION, FABRICATION, AND EVALUATION OF A PROTOTYPE VERY LARGE SCALE INTEGRATION (VLSI) DATA ACQUISITION SUBSYSTEM IS PROPOSED. AVAILABLE STATE-OF-THE-ART ONE MICRON CMOS TECHNOLOGY MAY ALLOW INCORPORATION OF MORE THAN 128 CHANNELS OF 24-BIT 300 MHZ COUNTERS INTO A SINGLE INTEGRATED CIRCUIT. A PROTOTYPE SYSTEM OF SIMPLE REPEATED CELLS OF COUNTERS, CONTROL AND I/O BUFFERS HAS BEEN DESIGN ...

THE PRIMARY GOAL OF THIS PROJECT IS TO DEVELOP AND DEMONSTRATE A SIMULATION/FACTORY CONTROL CAPABILITY TO (1) SIMULATE PRODUCTS, PROCESSES, AND FACTORY CONFIGURATIONS AT MULTIPLE LEVELS OF ABSTRACTION, (2) PROVIDE FINE GRAINED ANALYSIS OF PRODUCT AND PROCESS DESIGNS, AND (3) PROVIDE A MODEL DRIVEN FACTORY CONTROL ARCHITECTURE SO THAT THE MODELS EXECUTED IN THE SIMULATION STUDIES CAN BE DIRECTLY US ...

FUEL CELLS OPERATING IN AQUEOUS ELETROLYTES (BELOW 200¿C, DEPENDING ON THE CHOSEN ELECTROLYTE TECHNOLOGY) NORMALLY OPERATE ON HYDROGEN FUEL AND OXYGEN (OR AIR) AS THE OXIDANT. HIGH-PERFORMANCE FUEL CELL ELECTRODES REQUIRE HIGH CATALYST SURFACE AREAS, GOOD ELECTRONIC CONDUCTIVITIES AND BROAD REACTION ZONES, DEFINED BY THE CONTACT AREA BETWEEN THE CATALYST, THE GAS PHASE REACTANT AND THE ELECTROLYT ...

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NEURAL NETWORKS ARE A PROMISING SOLUTION TO SEVERAL PROBLEMS IN THE APPLICATION OF PARALLEL PROCESSING TECHNOLOGY FOR ADAPTIVE RECOGNITIONAND RESPONSE TO COMPLEX PATTERNS. UNFORTUNATELY, IT IS NOT KNOWN HOW TO GET A NEURAL NETWORK TO RECOGNIZE PATTERNS INDEPENDENTLY OF THE VALUES OF THEIR FEATURE PARAMETERS WITHOUT INCORPORATING SPECIAL INVARIANT TRANSFORMS FOR EACH SUCH FEATURE. THIS PROPOSAL INT ...

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