Award Data

THE OBJECTIVES OF THIS PROJECT ARE TO IDENTIFY AN INNOVATIVE SYSTEM TO SENSE AND CONTROL THE ELECTROSTATIC CHARGE BUILDUP ON HOVERING HELICOPTERS AND PERFORM A FEASIBILITY ANALYSIS OF THE SELECTED SYSTEM. THIS WILL BE ACCOMPLISHED THROUGH A COMPREHENSIVE SURVEY OF THE PHYSICAL AND TECHNICAL PHENOMENA WHICH CONTROL AND AFFECT THE PROBLEM AND OF THE PAST AND CURRENT EFFORTS TO SOLVE IT, INCLUDING A ...

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CDZNTE SUBSTRATES ARE REQUIRED FOR THE PRODUCTION OF CDHGTE IR DETECTORS. FOR THE SECOND GENERATION SYSTEMS REQUESTED BY THE ARMY, THE CDHGTE EPITAXIAL LAYER NEEDS TO BE GROWN ON LATTICE-MATCHED SUBSTRATES. HOWEVER, THE DEFECT DENSITY IN THE CURRENTLY AVAILABLE SUBSTRATES IS HIGH, AND THE EXISTENCE OF LARGE SIZES IS LIMITED. THE PROBLEM IN GROWTH OF CDZNTE CRYSTALS IS THE INABILITY TO PRODUCE AND ...

THE DISCOVERY OF THE TI:AL(2)O(3) TUNABLE SOLID-STATE LASER IN 1982 HAS SPARKED A LOT OF INTEREST IN SOLID-STATE LASER HOSTS FOR TITANIUM. AMONG THE VARIOUS LASER HOSTS, YALO(3) HOLDS THE MOST PROMISE BECAUSE IT IS A HIGH CRYSTAL FIELD MATERIAL. TI:YALO(3) CRYSTALS HAVE BEEN GROWN BY THE CZOCHRALSKI AND GRADIENT FREEZE TECHNIQUES. SPECTROSCOPIC MEASUREMENTS ON SAMPLES HAVE SHOWN AN EMISSION RANGE ...

TO MEET THE ARMY'S NEED FOR IMPROVED COST CONTROL AND PREDICTION OF RESOURCE USAGE IN THE INDEPENDENT PRODUCT ASSURANCE ACTIVITIES IN AS TIMELY A MANNER AS POSSIBLE, WE PROPOSE USING THE SOFTWARE QUALITY ASSURANCE DATABASE (SQUAD/20) MODEL, DEVELOPED BY CAPERS JONES AS A PROTOTYPE FOR ITERATIVE DEVELOPMENT OF AN IV&V COST ESTIMATING SYSTEM. THE MODEL CURRENTLY PREDICTS COST, EFFORT, AND DEFECT REM ...

IMPROVED ARMOR RESISTANT MATERIALS ARE REQUIRED TO KEEP PACE WITH TECHNOLOGICAL IMPROVEMENTS IN PENETRATOR MATERIALS. CERAMIC ARMOR OFFERS POTENTIAL BUT LACKS THE REQUIRED TOUGHNESS REQUIRED FOR GOOD BALLISTIC PROPERTIES. ENCAPSULATION OF THE CERAMIC MATERIAL IN A DUCTILE ALLOY CLADDING COULD OFFER SIGNIFICANT ADVANTAGE IN OVERALL BALLISTIC BEHAVIOR. THE PROPOSED PROGRAM WILL ENCOMPASS A PRELIMINA ...

THERE IS AN ACTIVE INTEREST IN RECHARGEABLE LITHIUM BATTERIES DUE TO THE HIGH ENERGY DENSITIES POSSIBLE. THESE HIGH ENERGY DENSITIES REQUIRE THE CYCLING OF THE LITHIUM ELECTRODE IN HIGH EFFICIENCY. IT HAS BEEN DEMONSTRATED THAT ELECTROLYTE COMPOSITION PLAYS A LARGE ROLE IN LITHIUM CYCLING EFFICIENCY AND THAT ADDITIVIES CAN HAVE LARGE POSITIVE EFFECTS. WE HAVE IDENTIFIED SEVERAL NEW CATEGORIES OF M ...

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