Award Data

We propose the exploration of single crystal GaN waveguides for the fabrication of optoelectronic integrated circuits. The feasibility of using GaN for short wavelength (up to 365 nm) OEIC's will be established in Phase I via the demonstration of a channel waveguide based phase shifter. The Al(sub x)GA(sub 1-x)N material system with its transparency from 365 nm to 12 microns, tunable refractive in ...

The current development of an electric power generation system for the More Electric Aircraft (MEA) is based on a low-risk extension of existing three-phase, switched reluctance machine (SRM) technology. This research program proposes to study an alternate two-phase SRM and its associated power-conditioning converter. By the nature of the proposed machine, it has 50% of its stator coils active at ...

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Treatment and disposal of surfactant-laden waste waters is a significant problem at firefighter training facilities, as well as in real world use. The extremely high foaming potential and chemical oxygen demand of these waters restricts their discharge into sewage treatment plants. Improved treatment processes must be developed for aqueous firefighting foams, hydrocarbons, and their degradation by ...

The objective of this work is to determine the best possible polycrystalline zirconia from the standpoint of properties and cost for applications in storage heaters. Our prior work has shown that highly stable tetragonal t'-zirconia with domain structure containing (

Development of a computer code for simulating the progressive damage and failure of fiber-reinforced composites is described in this Phase I Small Business Innovation Research Proposal. The computer code will combine a fracture mechanics treatment of the stable growth of partially-bridged surface and internal (penny-shaped) cracks with a compliance analysis to predict progressive damage (decreasin ...

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PDRI proposes to develop two criterion measures to assess retention and decay of Aerospace Physiology (AP) knowledge and skills. The standard criterion measure for measuring knowledge/skill retention and decay is a Job Knowledge Test (JKT). Therefore we will develop a multiple-choice JKT using expert aassistance from AP training staff. The JKT will measure the foundation of AP knowledge and skills ...

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The proposed project is to develop a novel polarization-sensitive thermal imaging system to detect, track and identify objects in space, in the air or on the ground. By exploiting polarization signatures, the proposed system will achieve enhanced performance relative to other fully passive systems and be able to detect, track and idetify targets even when their thermal contrast is low. In Phase I, ...