Award Data

Future aeropropulsion systems require high temperature electronics and integrated sensors to meet desired performance levels. The wide bandgap of silicon carbide (SiC) makes it ideally suited for high temperature operation. To date, virtually all SiC-based devices have been fabricated using 6H-SiC. Device performance would significantly increase if 3C-SiC, the cubic form, were available. 3C-SiC ha ...

The inability to fabricate copper-based superconductors capable of transporting or circulating high current densities over large volumes has severely limited applications for wires and levitation. Difficulties in texturing these ceramic materials is due to the requirement for nearly perfect grain boundaries resulting from the small quasi particle coherence lengths. Control of the morphology and na ...

THE COAST GUARD USED VELOCITY FIELDS FROM VARIOUS OCEAN CIRCULATION MODELS TO PROVIDE INPUT INTO TRAJECTORY MODELS WHICH ARE USED IN SEARCH PLANNING TO DETERMINE SEARCH AREA MOVEMENT. STATISTICAL TECHNIQUES (CALLED OBJECTIVE ANALYSIS), WHICH ARE APPLICATIONS OF THE GAUSS-MARKOV THEOREM, ARE USED BY THE OCEANOGRAPHIC MODELING COMMUNITY TO COMBINE OBSERVATION DATA WITH DYNAMICAL MODELS TO PROVIDE AC ...

DEMONSTRATE THE FEASIBILITY OF TRAINING AND UPGRADING AIRCRAFT INSPECTOR SKILLS THROUGH THE USE OF COMPUTER ENHANCED IMAGES OF AIRCRAFT COMPONENTS IN A CONTROLLED INSTRUCTIONAL ENVIRONMENT.

The proposed program contains two innovations to improve the useability of acousto-optic tunable filters (AOTF's). The first is the use of a phased array for the acoustic transducer to achieve acoustic wavefront steering. This will permit real-time control of bandwidth. The technique can be applied to existing non-collinear AOTF's such as TeO2. The second innovation is the use of amorphous polymer ...

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Adsorption refrigeration using ammoniated complex compounds as the absorbent media can be used for miniature portable blast freezers. This is possible because the technology allows low evaporator temperatures without staging, is scalable to small sizes, and has high reliability because the only moving parts are check valves. Compared to vapor compression or other sorption refrigeration systems, th ...

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