Award Data

THERE IS SUBSTANTIAL NEED FOR NEW SENSORS WHICH MEASURE ABSOLUTE DISTANCE FOR APPLICATIONS IN ROBOTIC POSITIONING, MACHINE VISION, AUTOMATIC INSPECTION AND GAUGING. WITH ITS ABILITY TO MEASURE NON-CONTINUOUS CHANGES IN POSITION, THE SENSOR COULD PROVIDE FEEDBACK MEASUREMENTS FOR CLOSED LOOP POSITION CONTROL FOR ROBOTS, CMMS AND MACHINE TOOLS. FOR AUTOMATIC INSPECTION, A HIGHLY ACCURATE DISTANCE ME ...

THE GOAL OF THIS RESEARCH IS TO DEVELOP A PROCESSOR WHICH USES TIME-FREQUENCY TRANSFORMS TO EXTRACT THE INSTANTANEOUS FREQUENCY OF A SIGNAL IN REAL TIME. IN THE PROCESSOR, THE SIGNAL WILL BE SPLIT INTO TWO PATHS. IN ONE PATH THE SIGNAL WILL BE DIRECTED TO A DELAY LINE AND THEN TO PROGRAMMABLE FILTERS. IN THE OTHER PATH, THE SIGNAL WILL BE DIRECTED TO OUR TIME-FREQUENCY DETECTOR WHICH WILL MEASURE ...

THE NATURAL FREQUENCY OF A MECHANICAL SYSTEM PROVIDES INSIGHT INTO ITS CONDITION. THE DEGREE OF STRESS TO WHICH A SYSTEM IS SUBJECTED IS REFLECTED IN SOUNDS PRODUCED BY THE SYSTEM WHEN EXCITED. IN PARTICULAR, THE MOVEMENT OF A MECHANICAL OR BIOLOGICAL CARDIAC VALVE PROSTHESIS GENERATES AUDIBLE SOUND; THE NATURAL FREQUENCY OF A CORRECTLY FUNCTIONING VALVE DIFFERS FROM THAT OF A FAULTY VALVE. THIS R ...

DIRECT-SEQUENCE SPREAD-SPECTRUM MULTIPLE-ACCESS (DS/SSMA) IS THE TECHNOLOGY OF CHOICE IN A WIDE VARIETY OF MILITARY RADIO NETWORKS WHERE MULTIPLE-ACCESS CAPABILITIES, ANTI-JAMMING, LOW PROBABILITY OF INTERCEPT, AND DYNAMIC TOPOLOGIES ARE IMPORTANT. THE PRINCIPAL SHORTCOMING OF OPERATIONAL RADIO NETWORKS USING DS/SSMA COMMUNICATION SYSTEMS IS THE NEAR-FAR PROBLEM, WHICH REFERS TO THE (POSSIBLY SEVE ...

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ACHIEVING HIGH PERFORMANCE AND MEETING REAL-TIME REQUIREMENTS ARE AREAS OF MAJOR CONCERN IN IMPLEMENTING REAL-TIME SYSTEMS IN ADA ON TARGETS RUNNING UNIX OPERATING SYSTEM. STANDARD UNIX LACKS REAL-TIME FEATURES THAT CAN ENABLE AN ADA RUNTIME SYSTEM TO BE DESIGNED SO AS TO ACHIEVE HIGH PERFORMANCE SIMILAR TO THAT OF BARE TARGET ADA IMPLEMENTATIONS. USE OF REAL-TIME UNIX FEATURES SUCH AS PREEMPTIVE ...

SOLID-STATE IONIZATION DETECTORS INCREASINGLY FIND USE IN MEDICAL, NUCLEAR, AND HIGH ENERGY PHYSICS AND IN MAGNETIC FUSION RESEARCH. UNFORTUNATELY, SILICON-BASED DETECTORS ARE HIGHLY SUSCEPTIBLE TO RADIATION DAMAGE, CAN OPERATE ONLYIN A NARROW TEMPERATURE REGIME, AND HAVE UNDESIRABLE SIGNAL-TO-NOISE RATIOS EVEN AT ROOM TEMPERATURE. A NEW CLASS OF RADIATION-RESISTANT, HIGH TEMPERATURE DETECTORS BAS ...

THE RESEARCH PROGRAM USES A NEW ADVANCED EPITAXIAL GROWTH TECHNIQUE, VAPOR TRANSPORT EPITAXY, TO RELIABLY AND REPEATEDLY FABRICATE A VARIETY OF COMPOUND SEMICONDUCTORS WITH HIGH THROUGHPUT AND OVER LARGE AREAS. THE COMPOUNDS OF SPECIAL INTEREST IN PHASE I ARE ZNSE (DIRECT BANDGAP 2.7 EV) AND ZNTE (DIRECT BANDGAP 2.3 EV), BECAUSE OF THEIR WIDE BANDGAP IN THE BLUE/BLUE-GREEN PORTION OF THE VISIBLE S ...

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IMI PROPOSES TO UTILIZE ITS RECENT SUCCESSFUL PACKAGING RESEARCH IN MULTICHIP SILICON-ON-SILICON ASSEMBLIES TO DEVELOPA HIGH DENSITY, HIGH PERFORMANCE DESIGN FOR LOW COAST DIGITAL AND ANALOG MODULES. A CIRCUITED SILICON WAFER WILL BE UTILIZED AS A SUBSTRATEON WHICH TO MOUNT FOUR OR MORE SILICON DEVICES. TAPE AUTOMATED BONDING (TAB) WILL BE UTILIZED AS THE INTERCONNECTION TECHNOLOGY BECAUSE OFITS S ...