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THERMAL HEAT LOADS ON SPACECRAFT ARE VARIABLE. RADIATORS SIZED FOR PEAK LOADS ARE LARGER THAN NECESSARY FOR AVERAGE LOAD . HEAT SINKS WOULD ALLOW THE RADIATORS TO BE SIZED FOR THE AVERAGE THERMAL HEAT LOAD. METAL HEAT SINKS ARE TOO HEAVY AND PHASE CHANGE MATERIALS HAVE TOO SLOW A TEMPORAL RESPONSE FOR MANY APPLICATIONS. METAL\PHASE CHANGE MATERIAL COMPOSITES ARE LIGHT WEIGHT AND HAVE A FASTER RESP ...

AS AN UNBREACHABLE PERSONNEL IDENTIFICATION SYSTEM, WE PROPOSE TO COUPLE A VAPOR COLLECTOR TO A MASS SPECTROMETER IN ORDER TO PROFILE HUMAN VAPOR "SIGNATURES." THESE PROFILES OF CHEMICALLY COMPLEX "SIGNATURES" WILL THEN BE COMPARED TO A REFERENCES FILE USING A HIGHLY EFFECTIVE PATTERN MATCHING ALGORITHM. PHASE I EFFORT WILL DEMONSTRATE THE EXISTENCE OF THESE "SIGNATURES" AND SHOW THAT EXISTING INS ...

CHARACTERIZING THE OPTICAL PROPERTIES OF INDIVIDUAL AEROSOL PARTICLES IN THE AEROSPACE ENVIRONMENT REQUIRED TO ALLOW PERFORMANCE ANALYSIS OF OPTICAL AND INFRARED SYSTEMS AND OPTICAL OBSCURATION COUNTERMEASURES. THERE EXISTS A NEED TO DEVELOP NEW INSTRUMENTATION WHICH CAN AUTOMATICALLY AND REMOTELY (IN-SITU) MEASURE AND RECORD THE TOTAL SCATTERING PATTERN FROM INDIVIDUAL AIRBORNE PARTICLES OF DIFFE ...

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REAL TIME INFORMATION OF IONOSHPHERIC PARAMETERS HAS BOTH MILITARY AND SCIENTIFIC USES. WE PROPOSE THE DEVELOPMENT OF A LOW COST DEVICE THAT CONTINUOUSLY TRACKS THE O- ADN X-MODE CRITICAL IONOSPHERIC FREQUENCIES WITH A 1 SECOND TIME RESOLUTION AND A 5 KHZ FREQUENCEY RESOLUTION. THE RESULTS ARE DISPLAYED IN REAL TIME IN DIGITAL FORMAT. THE CRITICAL FREQUENCY TRACKER" (CFT) TRANSMITS TWO WAVES (O- A ...

MICROPROESSORS AND SIMILAR INTEGRATED CIRCUIT EQUIPMENT IN LOCAL AREA NETWORKS (LAN) ARE VULNERABLE TO DAMAGE FROM ELECTROMAGNETIC PULSE RESULTING FROM LIGHTNING, SHORT CIRCUITS IN NEARBY HIGH VOLTAGE CABLESAND NUCLEAR EXPLOSIONS. EXISTING CIRCUIT BREAKING DEVICES DO NOT PROVIDE ADEQUATE PROTECTION BECAUSE OF THEIR SLOW REACTION TIME. A DEVICE IS NEEDED TO ISOLATE SENSITIVE EQUIPMENT FROM LAN DIST ...

THIS PROPOSAL PRESENTS A PLAN FOR STUDYING THE FEASIBILITY OF AN INNOVATIVE AUTOMATIC INERT GAS PRESSURIZATION METHOD AND NEW GASKET MATERIALS THAT WILL INCREASE THE SERVICE LIFE OF MUNITIONS WHILE IN CONTAINERS. TRANSFER OF STATE-OF-THE-ART ELASTOMER TECHNOLOGY FROM OTHER FIELDS THAT USE GASKETS WILL BE STUDIED, AS WELL AS THE FEASIBILITY AND VALUE OF INITIATING A GOVERNMENT SPONSORED DEVELOPMENT ...

AUTOMATIC CONTROL AND ANALYSIS, SYSTEM IDENTIFICATION AND SYSTEM ANALYSIS FOR COMPLEX DYNAMICAL SYSTEMS ARE ENGINEERING TASKS WHICH CAN BE GREATLY ENHANCED THROUGH AUTOMATIVE INTERACTIVE (COMPUTER AIDED) DESIGN METHODS. SUCH TECHNIQUES ARE LARGELY UNAVAILABLE IN AEROSPACE, MECHANICAL AND ELECTRICAL ENGINEERING FIELDS WHERE SIGNI- FICANT RESOURCES ARE STILL EXPENDED TO DEVELOP SPECIALIZED NON-PORTA ...

THIS PROPOSAL ADDRESSES THE THEORETICAL ISSUES INVOLVED IN OBTAINING QUANTITATIVE ROBUSTNESS MEASURES FOR ADAPTIVE SYSTEMS. PRESENT ADAPTIVE THEORY REQUIRES THAT THE PLANT AND CONTROLLER ARE LINEAR AND FINITE DIMENSIONAL, WITH KNOWN ORDER SUCH THAT CONTROL OBJECTIVES ARE EXACTLY OBTAINED. SUCH STRINGENT CONDITIONS CANNOT BE OBTAINED IN AN ACTUAL SYSTEM WHERE UNCERTAIN PHENOMENA ABOUND,E.G., UNCERT ...