Award Data

ADVANCES IN ELECTRONIC DEVICE TECHNOLOGY HAVE LED TO INCREASED PACKING DENSITIES WHILE POWER CONSUMPTION HAS DROPPED. IN GENERAL, THIS TREND IS BENEFICIAL TO AVIONICS AND SPACE APPLICATIONS EXCEPT THAT A NEW FAILURE MODE HAS ACCOMPANIED THIS MINIATURIZATION. IN HIGH ENERGY PARTICLE ENVIROMENTS, SUCH AS ENCOUNTERED IN SPACE, MICROELECTRONIC DEVICES HAVE BEEN SHOWN TO BE SUSCEPTIBLE TO TRANSIENT OR ...

Oscilla Power, Inc. (OPI) is developing a utility-scale wave energy harvester that is enabled by low cost and readily-available magnetostrictive alloys. T his device, which utilizes no moving parts, has the potential to deliver predictable quantities of electric power to coastal utilities, industrial users, and remote facilities at costs competitive with coal or gas. The Phase I project demonstra ...

QUANTITATIVE VERIFICATION OF THE RESIDUAL IN-SITU STRESS FIELD WHICH CREATES THE CONTAINMENT CAGE IS NEEDED TO ASSESS THE FACTOR OF SAFETY AGAINST HYDRAULIC FRACTURING FROM THE CAVITY WALL. PHASE I WILL ESTABLISH THE FEASIBLITY OF DEVELOPING A PASSIVE STRESS GAUGE, ABSENT OF ACTIVE INSTRUMENTATION, AND CAPABLE OF RECORDING THE RESIDUAL IN-SITU STRESS FIELD IMMEDIATELY FOLLOWING THE NUCLEAR DEVICE ...

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THE PROPOSED RESEARCH PROGRAM WILL STUDY SOIL-PILE FOUNDATION INTERACTION INDUCED BY THE DETONATION OF CONVENTIONAL WARPONS. THE ULTIMATE GOAL OF THE PROGRM IS TO ESTABLISH A SET OF GENERAL GUIDELINES FOR FOUNDATION DESIGN OF FUTURE STRATEGIC STRUCTURES AS WELL AS THE ASSESSMENT OF THE VULNERABILITY OF EXISTING STRUCTURES. THE PHASE I EFFORT WILL INVOLVE ANALYSIS OF THE EXISTING EXPERIMENTAL DATA, ...

EXTRINSIC PHOTOCONDUCTIVITY SEMICONDUCTOR SWITCHES (PCSS) BASED ON CVD DIAMOND-FILM (DF) HAS BEEN DEVELOPED. DIAMOND MATERIAL POSSESSES SEVERAL ADVANTAGES SUCH AS HIGH THERMAL CONDUCTIVITY AND HIGH BREAKDOWN VOLTAGES. THE PCSS BASED ON CVD DIAMOND CAN BE SUPERIOR THAN ITS COUNTERPARTS (GAAS OR SI) BY EXPLOITING THESE ADVANTAGES. CONVENTIONAL PCSS'S BASED ON GAAS SUFFER FROM PROBLEMS SUCH AS THERMA ...

Manufacturing of bulk metallic glasses (BMG) requires very rapid cooling and some recent work in laser direct deposition or laser engineered net shaping (LENS) techniques has indicated the possibility of producing net shaped bulk quantities of these materials. To date several groups have had some initial success in forming BMG"s using laser direct deposition suggesting that a careful variation of ...

Military combatants face the threat of unconventional radiological, biological and chemical agents. Sensors that can detect the presence of these warfare modes, particularly chemical warfare agents, are vital to protecting U.S. forces personnel and their assets. Almost all of the currently available devices for chemical warfare agent detection require electrical power, wherein the power source it ...

Applied Physical Electronics, LC (APELC) proposes to develop an innovative Silicon Carbide (SiC) Planar Avalanche Switch (PAS) in which a small optical pulse is used to initiate a planar avalanche over a large cross section instead of the filamentary avalanche that is optically initiated in GaAs. The solicitation seeks filamentary avalanche switches based on the large amount of previous work in ...