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ADVANCED COMPOSITES LABORATORIES WILL DEVELOP AN IMPROVED MOUNTAINEERING SKI FOR MILITARY USE. WE WILL INCORPORATE THE BEST OF DOWNHILL SKI TECHNOLOGY WITH THE BEST OF TELE MARK AND MOUNTAINEERING SKI TECHNOLOGY TO PRODUCE A SKI FOR THE US MARINE CORPS WHICH WILL MEET THE REQUIREMENTS OF THE MARINE CORPS TOICS N86-13. WE WILL USE ADVANCED COMPOSITE MATERIALS TO ALLOW US TO PROVIDE A HIGH PERFORMAN ...

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THE PERFORMANCE OF MANY ADVANCED UNDERWATER ACOUSTIC SENSOR SYSTEMS IS LIMITED BY UNWANTED NOISE CAUSED BY THE TURBULENT BOUNDARY LAYER (TBL). THE TBL MAY ALSO EXCITE UNWANTED NOISE AND VIBRATION (FLOW NOISE) IN A VARIETY OF MARINE AND AIRCRAFT VEHICLES. A SIGNIFICANT AMOUNT OF FLOW NOISE REDUCTION HAS BEEN REPORTED WHEN ANISOTROPIC COMPLIANT WALLS HAVE BEEN TESTED. THE PROPOSED WORK IS TO DEVELOP ...

THE OBJECTIVE OF THIS PROJECT IS TO ADVANCE THE STATE-OF-THE-ART OF VISION GUIDED ROBOTIC WELDING (SEAM TRACKING) BY THE DEVELOPMENT OF EXPERT SYSTEMS CAPABLE OF ADAPTING THE WELDING PARAMETERS TO COMPENSATE FOR WELDING PROCESS DISTURBANCIES. IN PHASE I OF THE PROJECT, WE WILL FOCUS ON ADAPTATION TO JOINT GEOMETRY VARIATIONS AND ESTABLISH THE FEASIBILITY OF THE OVERALL APPROACH. EXPERIMENTS WILL B ...

A NOVEL APPROACH TO THE SAFETY OF RESERVE BATTERIES IS TAKEN, BASED ON A BATTERY DESIGN THAT ELIMINATES THE USE OF A SEPARATE RESERVOIR TO STORE THE ELECTROLYTE DURING INACTIVE LIFE OF THE BATTERY. CELLS WITHOUT THE ELECTROLYTE AND THE ELECTROLYTE ITSELF ARE SITUATED IN A BATTERY CONTAINER, STORED UNDER VACUUM. THE BATTERY IS ACTIVATED SIMPLY BY ADMITTING THE AIR INTO THE CONTAINER. THE AIR FORCES ...

THE GOAL OF THE PROPOSED PROGRAM IS IMPROVEMENT OF CURRENT STATE-OF-THE-ART LITHIUM/THIONYL CHLORIDE BATTERY TECHNOLOGYTHROUGH THE USE OF CARBON-BASED CATHODES CONTAINING ADVANCEDNON-NOBLE CATALYSTS. DRAMATIC IMPROVEMENTS IN BOTH SAFETY AND PERFORMANCE HAVE BEEN REALIZED THROUGH THE USE OF SAFETYHAVE BEEN AS COBALT-BASED PTHALOCYANINE AND TETRAAZODIBENZ OANNULENE, RESULTING IN HIGHER RATE CAPABILI ...

EXPOSIVES TYPICALLY BEGIN TO DETONATE WHEN HEATED TO TEMPERATURES ON THE ORDER OF 200 DEG C. THUS IT HAS BEEN RECOGNIZED THAT IT WOULD BE VERY DESIRABLE TO INCREASE THE TIME AT WHICH WEAPONS REMAIN BELOW ABOUT 150 DEG C, EVEN IF THIS INCREASE IS ONLY A FEW MINUTES. COATINGS HAVE BEEN DEVELOPED WHICH MAINTAIN WEAPON TEMPERATURES BELOW 200 DEG C FOR ALMOST FIVE MINUTES EVEN WHEN THE WEAPON IS EXPOSE ...

INCREASINGLY STRINGENT INDUSTRIAL SAFETY STANDARDS AND ENVIRONMENTAL REGULATIONS ARE RESTRICTING THE USE OF ORGANOMETALLIC BASED PAINT WITH THE RESULT THAT THE NAVY NOW HAS POORER QUALITY ANTIFOULING PAINT PERFORMANCE THAN IT HAD PRIOR TO RECENT DEVELOPMENTS. THIS PROPOSAL INVOLVES EXPLORING AN ENTIRELY NEW APPROACH TO ANTIFOULING PAINTS WHICH MAY PRODUCE ANTIFOULING SURFACES WITHOUT THE USE OF EX ...

THERMALLY ACTIVATED LITHIUM ALLOY - IRON PYRITE BATTERIES ARE USED IN A VARIETY OF MILITARY APPLICATIONS. THESE BATTERIES EXHIBIT ABNORMALLY HIGH VOLTAGES DURING THE FIRST SEVERAL MINUTES OF DISCHARGE. THE VOLTAGE TRANSIENT HAS BEEN ASSOCIATED WITH THE PHYSICAL AND CHEMICAL PROPERTIES OF THE NATURALLY OCCURRING PYRITE USED IN THE CATHODE. THIS PROGRAM SEEKS TO DEMONSTRATE THAT HIGH PURITY SYNTHETI ...

METAL MATRIX COMPOSITES ARE FABRICATED FROM HIGH STRENGTH FIBER OR PARTICLE REINFORCEMENTS AND A SUITABLE MATRIX ALLOY. ALUMINUM COMPOSITES HAVE SHOWN HIGH STRENGTH AND STABILITY AND ARE WELL SUITED TO ADVANCED MILITARY AND CIVIL DESIGN CONCEPTS. REINFORCING FIBERS OFTEN REACT WITH THE MATRIX ALLOY DURING FABRICATION AND PROCESSING FORMING A THIN DIFFUSION REACTION ZONE SURROUNDING THE REINFORCEME ...