Award Data

WE PROPOSE TO MEASURE ICE THICKNESS FROM A SUBMERGED SUBMARINE BY MEASURING THE ATTENUATION OF THE COSMIC RAY PRODUCED NETURON FLUX. A SIMILAR TECHNIQUE HAS BEEN USED SUCCESSFULLY TO MEASURE SNOW THICKNESS. TWO NEUTRON DECTORS, POSSIBLE BF3, WOULD OPERATE IN COINCIDENCE MODES TO REDUCE BACKGROUND CONTRIBUTIONS. THE DETECTION GEOMETRY WOULD DETERMINE THE APERTURE AND, THEREFORE, SIZE OF ICE AREA ME ...

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SIGNIFICANT PROGRESS HAS BEEN MADE TOWARD THE DEVELOPMENT OF A COMPREHENSIVE MECHANICAL PROPERTY DATA BASE FOR P100 GG/AL METAL MATRIX COMPOSITE MATERIAL. LITTLE OR NO DATA EXISTS RELATIVE TO THE ENVIROMENTAL BEHAVIOR OF THIS MATERIAL. THE PRESENT ANTICIPATED APPLICATION ENVIRONMENTS FOR THIS MATERIAL INCLUDE SEACOAST, SHIPBOARD, AND ENVIRONMENTS IN WHICH FOSSIL FUEL EXHAUSTS ARE PRESENT. THE PROP ...

ELECTRONIC MODULES THAT CAN BE FAULTED BY REMOTELY CONTROLLED SWITCHING ARE POTENTIALLY VALUABLE AIDS IN THE TRAINING OF OPERATING AND MAINTENANCE PERSONNEL IN THE RECOGNITION AND DIAGNOSIS OF FAILURES ANDPERFORMANCE DEGRADATION IN COMPLEX ELECTRONIC SYSTEMS. OAS, INC., PROPOSES AN INVESTIGATION OF LOW-LEVEL MICROWAVE AND SUPERSONIC SWITCHING DEVICES THAT MIGHT BE ATTACHED TO AN ELECTRONIC MODULE ...

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STATE-OF-THE-ART DOPPLER SONAR NAVIGATORS DO NOT PROVIDE SUFFICIENTLY PRECISE MEASUREMENT OF RELATIVE MOTION FOR USE WITH ADVANCED, HIGH DEFINITION, SONAR MAPPING SYSTEMS. THIS SHORT-COMING IS PARTICULARLY ACUTE WHERE THE REFLECTIVE SURFACE IS HIGHLY IRREGULAR, RELATIVE VELOCITIES ARE LOW, AND AVERAGING PERIODS ARE SHORT. IN CONTRAST, CORRELATION SONAR TECHNIQUES OVERCOME MANY OF THE INHERENT LIMI ...

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