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The successful development of a scuba mouthpiece based oral bone conduction hearing device will revolutionize underwater hearing. Clear, binaural hearing in an aqueous environment, without the need for headgear or ear proximity air gap sound transmission is a tremendous advantage to divers who wish to voice communicate or to receive audible information from instrumentation. Current uses of headg ...

We propose a unique GaN-Al(sub x)Ga(sub 1-x)N heterojunction based CCD for imaging in the ultraviolet (wavelengths less than 365 nm). Our proposed device will be solid state, TTL compatible and in it's final configuration solar blind. The Phase I program is aimed at establishing the technical feasibility of our device concept. Our proposed CCD is in essence a GaN-AlGaN gated photoconductor with ...

This proposal describes new low cost, low risk semiconductor-based approaches to fuze trigger circuit technology. These innovative approaches build on the promising new technology platform developed by ARIA as part of earlier SBIR research. ARIA's technology platform, initially developed for driving extremely high speed (400 picosecond rise time), high peak current pulses (400A) through laser di ...

Two different types of automatic speech recognizers will be evaluated for their effectiveness in an interactive Spanish-language pronunciation-training system. This effort is an extension of previous research on English language systems by this research group, and represents the first of several evaluations for other languages. One spectral-template based recognizer and two Hidden Markov Model ( ...

This document covers a proposal by Contamination Studies Laboratories in response to SBIR Topic N95-177. The proposal covers the background Phase 1 research necessary to develop an environmentally acceptable conformal coating stripper, and a prototype conformal coating rework station to'apply such a stripper in a precise and controlled manner. These rework stations are intended for militar ...

The objective of this research is to verify a new, lightweight fuel injection (atomizing) technique for heavy fuel engines JP-5, JP-8 and diesel). The primary goal is to provide a very lightweight system, with cold start capability and good performance, that is suitable for Unmanned Air Vehicle heavy fuel engines. Preliminary experimental testing of one concept has indicated that the proposed new ...

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This effort will address five problems in the process design of heterojunction bipolar transistors (HBTs) and high electron mobility transistors (HEMTs): (1) HEMT thermal impedances will be measured using a novel method and will be compared with finite-element simulations to provide more accurate values for computer-aided design programs. (2) The role of the spacer layer in HEMT performance and ...