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AN INERTIAL TRACKING SYSTEM, CONSISTING OF SUBMINIATURE LINEAR ACCELEROMETERS AND RATE SENSORS USED TO QUANTIFY THE SIX DEGREE OF FREEDOM RESPONSE OF A RIGID, TEST EQUIPMENT BASED COORDINATE SYSTEM IS DESCRIBED. THIS DATA WILL BE USED TO SUPPLEMENT PRESENTLY OBTAINED PHOTOGRAPHIC INFORMATION. SENSOR REQUIREMENTS ARE OUTLINED IN DETAIL AND APPLICABILITY OF EXISTING INSTRUMENTATION PACKAGES IS DISCU ...

THE ASSOCIATED CORPORATION PROPOSES TO INVESTIGATE AN INTERRELATED THREE-PART KNOWLEDGE BASED SYSTEM HAVING A NATURAL LANGUAGE INTERPRETER, AN EXPERT SYSTEM ANALYZER AND A NATURAL LANGUAGE GENERATOR. TECHNIQUES USING A LEXICALLY/SEMANTICALLY/FUNCTIONALLY FOCUSED DICTIONARY, PARSER, ANALYSER WHICH TAKES ADVANTAGE OF REPETITIVE LEXICAL STRINGS ARE PROPOSED FOR NATURAL LANGUAGE PROCESSING. INVESTIGAT ...

MOST SURFACE COATINGS (PAINTS) USED ON THE EXTERIOR OF MILILTARY HARDWARE POSSESS HIGH THERMAL EMITTANCE IN THE 3 TO 5 MICRON AND 8 TO 23 MICRON WAVELENGTH REGIONS, MAKING THEM VULNERABLE TO DETECTION USING STATE-OF-THE-ART OPTICAL INFRARED DETECTORS. THIS PROPOSED EFFORT HAS AS ITS OBJECTIVE THE DEVELOPMENT OF SURFACE COATINGS THAT HAVE LOW SPECTRAL EMITTANCE PROPERTIES IN THE SENSITIVE WAVELENGT ...

COMPOSITE MATERIALS OFFER SEVERAL ADVANTAGES OVER METALS FOR PORTABLE BRIDGING: WEIGHT SAVINGS OF 25% OR MORE, CORROSION AND FATIGUE RESISTANCE. THE DESIGN OF A COMPOSITE STRUCTURE IS COMPLEX: COMPOSITE PROPERTIES ARE HIGHLY ANISOTROPIC, MOISTURE ABSORPTION AND TEMPERATURE CHANGES CAUSE CONSIDERABLE STRAINS AND FIT-UP SENSITIVITY IS HIGH. U.S. COMPOSITES WILL DESIGN A COMPOSITE MULTI-HOLLOW BRIDGE ...

AN APPROACH TO THE DESIGN, DEVELOPMENT AND FABRICATION OF A HIGH PRESSURE MICROSCOPE STAGE WITH FACILITIES FOR A TEMPERATURE RANGE OF MINUS 60 DEGREE CENTIGRADE TO PLUS 60 DEGREE CENTIGRADE IS DESCRIBED. THIS DESIGN IS EXPECTED TO ACHIEVE A MAXIMUM PRESSURE OF 20,000 PSI AND REQUIRE A SAMPLE VOLUME OF LESS THAN 100 ULITER. THE USEFUL OPTICAL SPECTRAL RANGE WILL COVER THE VISIBLE TO NEAR INFRARED. ...

GALLIUM ARSENIDE (GAAS) IMPATT DIODES HAVE GENERATED MORE RF POWER AND HIGHER CONVERSION EFFICIENCIES BOTH IN THE PULSED AND CONTINUOUS WAVE OPERATING MODE AND DEMONSTRATED BETTER RADIATION HARDENING, THAN ANY OTHER EHF SOLID STATE POWER GENERATING DEVICE. HISTORICALLY, SUBSTANTIAL DIFFICULTIES HAVE CONFRONTED THE IMPATT DEVICE MANUFACTURERS IN ACHIEVING THEORETICAL PREDICTED PERFORMANCES WITH GOO ...

THE ABILITY TO COMPUTE EFFICIENTLY THE SCATTERED ELECTROMAGNETIC WAVES (RADAR CROSS SECTION) BY A TARGET WITH COMPLEX GEOMETRY AND MATERIAL PROPERTY (INCLUDING ANISOTROPY, FINITE CONDUCTIVITY, ETC.) PLAYS A VERY IMPORTANT ROLE IN ADVANCED VULNERABILITY ANALYSIS FOR ANY POSTULATED AIRCRAFT. HENCE THE DEVELOPMENT OF AN EFFICIENT AND VERSATILE NUMERICAL ALGORITHM FOR SOLVING THIS TYPE OF COMPLEX EM S ...