Award Data

THE GOAL OF THE PROJECT IS TO DEVELOP A FORMALLY VERIFIED DESIGN FOR A MULTILEVEL SECURE, DISTRIBUTED, FAULT TOLERANT REFERENCE MONITOR. A REFERENCE MONITOR IS A SYSTEM PROGRAM WHICH CONTROLS ACCESS OF USER PROCESSES TO SENSITIVE DATA. THE REFERENCE MONITOR CHECKS ACCESSES FOR COMPLIANCE WITH A SYSTEM SECURITY POLICY, AND DISALLOWS ACCESSES NOT IN COMPLIANCE. ORA WILL DEVELOP A DESIGN FOR A REFERE ...

A SOLID STATE SWITCH FOR OPERATION AT CRYOGENIC TEMPERATURE IS BEING DEVELOPED THAT WILL PROVIDE MULTI-MEGAWATT POWER CONDITIONING IN THE RAPIDLY EXPANDING FIELD OF LOW TEMPERATURE ELECTRONICS. SINCE EXISTING CONTROLLED SWITCHES ARE NOT DIRECTLY SUITABLE FOR CRYOGENIC OPERATION, ONLY A FUNDAMENTAL APPROACH CAN DEVELOP STRUCTURES CAPABLE OF LOW LOSS AND RELIABLE OPERATION IN THE TEMPERATURE RANGE B ...

A LOW DIELECTRIC CONSTANT PACKAGING MATERIAL FOR USE IN THE FABRICATION OF MULTICHIP MODULES IS PROPOSED. TWO FORMS OF THE MATERIAL WILL BE DEVELOPED. A FIRST FORM WILL HAVE A DIELECTRIC CONSTANT OF 2.4 AND A SECOND, MORE ADVANCED FORM, WILL HAVE A DIELECTRIC CONSTANT LESS THAN 2.0. THE PROPOSED PROGRAM WILL INCLUDE DEVELOPMENT OF THE MATERIAL AND DEMONSTRATION OF THE MATERIAL FOR USE IN MULTICHIP ...

IN THIS PROGRAM, A STUDY OF THE MAPPING OF A NEW CLASS OF MULTIDIMENSIONAL DISCRETE FOURIER TRANSFORM (MD DFT) ALGORITHMS TO BROADCAST MODE MULTIPROCESSORS IS PROPOSED. THESE ALGORITHMS ARE DESIGNED TO SCALE FROM LIMITED TO MASSIVE DEGREES OF PARALLELISM. CONVENTIONAL APPROACHES MAP VARIATIONS OF ROW-COLUMN OF VECTOR-RADIX ALGORITHMS TO PARLLEL ARCHITECTURES. THESE ALGORITHMS REQUIRE INTENSIVE INT ...

OPTICALLY PUMPED KERR-LIQUID FILLED HOLLOW FIBER DEVICES ARE PROPOSED AS A NOVEL MULTIWAVELENGTH COHERENT LIGHT SOURCE WITH APPLICATIONS IN LIDAR AND COHERENT OPTICAL SENSOR SYSTEMS. THE DEVICES ARE BASED ON STIMULATED RAYLEIGH-KERR SCATTERING FROM A KERR-LIQUID-FILLED HOLLOW FIBER SYSTEM. THE PROPOSED DEVICES ARE SUPERIOR TO OTHER EXISTING METHODS OF GENERATING COHERENT MULTIWAVELENGTH EMISSION I ...

THE COOLING REQUIRED FOR THE PROPER OPERATION OF VARIOUS SENSORS AND INSTRUMENTS IS A KEY PROBLEM IN SPACE-BASED FACILITIES. A NOVEL CONCEPT HAS BEEN DEVELOPED AT LONE PEAK ENGINEERING BASED ON THE COMPRESSION OF A GAS TO HIGH PRESSURES USING A SOLID ELECTROLYTE COMPRESSOR. RAPID EXPANSION OF THE COMPRESSED GAS (JOULE-THOMSON EFFECT) CAN BE USED TO COOL SPACECRAFT INSTRUMENTS AND EQUIPMENT. SOME O ...

ALGAAS LASER DIODE ARRAYS USED AT 785-808 NM TO PUMP YAG-TYPE SOLID STATE LASERS NEED IMPROVEMENT IN RELIABILITY AND POWER EFFICIENCY. DIODE LASERS WITH INGAAS QUANTUM WELLS, USED FOR LONGER WAVELENGTH PUMPING, HAVE DEMONSTRATED IMPROVED LIFE AND EFFICIENCY. THIS PROGRAM WILL STUDY THE QUATERNARY MATERIAL SYSTEM, ALXGAYINAS, TO DETERMINING GROWTH CONDITIONS WHICH CAN RESULT IN HIGHLY RELIABLE DIOD ...

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POWERFUL WORKSTATIONS CAN HANDLE COMPLEX PROBLEMS WHICH USUALLY INVOLVE 3-D OBJECTS, DEMANDING SOPHISTICATED GRAPHICS FOR ANALYSIS AND VISUALIZATION. FUTURE IMAGE PROCESSORS AND GRAPHIC USER INTERFACES WILL INEVITABLY INCLUDE 3-D STEREO OUTPUT DEVICES (DISPLAYS AND PRINTERS) COMPATIBLE WITH THE HUMAN STEREOSCOPIC VISION. THE STATE-OF-THE ART 3-D STEREO DISPLAY TECHNOLOGY IS BASED ON LIQUID CRYSTAL ...

COMMERCIAL HIGH TEMPERATURE SUPERCONDUCTING MATERIALS NEED TWO KEY TECHNIQUES NAMELY, LARGE AREA DEPOSITION AND LARGE AREA PATTERNING. MOST COMMONLY USED PROCESSING TECHNIQUES SUCH AS PULSED LASER DEPOSITION AND LASER ETCHING ARE LIMITED TO A SMALL SCALE DEPOSITION AND PATTERNING OF HTS FILMS. BY COMBINING E-BEAM MULTILAYER EVAPORATION AND RAPID THERMAL ANNEALING WE QUICKLY MAKE LARGE AREA FILMS ( ...