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AN INNOVATIVE INSTRUMENTED ROCKET FOR MEASURING WIND PROFILES IN SUPPORT OF AEROSPACE VEHICLE OPERATIONS IS PROPOSED. IMMEDIATE APPLICATION IS TO NASA'S STS OPERATIONSALTHOUGH MANY OTHER APPLICATIONS CAN BE IDENTIFIED. TECHNIQUES FOR MEASURING STS LAUNCH WINDS CLOSE TO THE SCHEDULED LAUNCH TIME AND LAUNCH PATH WOULD REDUCE THE UNCERTAINITY MARGIN OF CALCULATED WIND LOADS, INCREASE LAUNCH PROBABILI ...

ADVANCED THERMAL STORAGE IS A CRUCIAL ELEMENT OF FUTURE SPACE POWER SYSTEMS. SOLID-LIQUID PHASE CHANGES IN HIGHLY CORROSIVE SALTS, SUCH AS LIF, ARE FAR FROM IDEAL FOR SUPPLYING THE THERMAL DEMANDS OF DYNAMIC POWER CONVERTERS. IN THEORY, PHASE CHANGE MATERIALS STORE HEAT ISOTHERMALLY BUT UNDERCOOLING AND HEAT TRANSFER TS CAUSE SIGNIFICANT TEMPERATURE DEVIATIONS. METAL HYDRIDES ARE COMPETITIVE WITH ...

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AN INNOVATIVE TECHNIQUE WILL BE INVESTIGATED TO ACQUIRE AND DIGITIZE A PACKET OF HIGH-DATA-RATE BURST INFORMATION. IN THIS CONCEPT, A CHARGE-COUPLED DEVICE (CCD) SAMPLES THE RECEIVED SIGNAL AND DETECTS THE UNIQUE SYNCHRONIZATION WORD.UPON UNIQUE-WORD DETECTION, THE TIMING OF THE DATA BURST IS DETERMINED, AND THE CCD DEVICE TEMPORARILY STORES THE BURST-SIGNAL SAMPLES. THESE SIGNAL SAMLES ARE THEN O ...

AS NASA EXPANDS ITS SPACE CONSTRUCTION AND SATELLITE SERVICING ACTIVITIES, MACHINES THAT CAN PERFORM HUMAN MANIPULATION WITHOUT THE ACTUAL PRESENCE OF AN ASTRONAUT ARE BECOMING NECESSARY. ON EARTH, MANIPULATORS HAVE BEEN USED FOR YEARS TO ACCOMPLISH COMPLEX TASKS UNDER TELEOPERATORED CONTROL. TO PROVIDE ADVANCED MANIPULATION FOR SPACE, WE MUST MOVE FORWARD BY INCORPORATING THE HUMAN THOUGHT PROCES ...

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VEXTRA CORPORATION PROPOSES THE DEVELOPMENT OF A SOFTWARE SYSTEM FOR CONVENIENTLY AND MEANINGFULLY VISUALIZING LARGE MULTI-DIMENSIONAL DATA SETS SUCH AS FROM THE FUTURE HIRIS SENSOR FOR THE EARTH OBSERVING SYSTEM (EOS). THE TECHNIQUESFOR VISUALIZATION WILL INCLUDE VOLUMETRIC RENDERING AND BANDCOMPRESSION, AS WELL AS IMAGE DISPLAYS, CONTOUR PLOTS, SPECTRAL CURVE PLOTS AND SCATTER PLOTS. IN PARTICUL ...

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THE NAVY HAS IDENTIFIED A NEED FOR AN IMPROVED TECHNOLOGY TO PROVIDE CONTROL OF PARTICULATE AND GASEOUS CONTAMINANTS TO PROTECT SHIPBOARD PERSONNEL AND EQUIPMENT. THE NEW SYSTEM SHOULD BE A NON-BARRIER TYPE FILTRATION DEVICE WITH THE FOLLOWING CHARACTERISTICS: VERY LOW PRESSURE DROP, REQUIRE LITTLE MAINTENANCE, BE INSENSITIVE TO CHANGES IN AMBIENT CONDITIONS SUCH AS TEMPERATURE, PRESSURE, AND MOIS ...