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Electron Cyclotron Resonance (ECR) plasma technology is widely used in the etching of III-V semiconductor devices. This has enabledthe fabrication of a wide variety of high speed analog, digital, and optoelectronic devices. As the need grows for high performance devices with dimensions below 0.1 microns, the technological requirements on the etch source are becoming more subtle and complicated. Ap ...

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Mice lacking a functional c-src gene develop osteopetrosis due to a defect in bone resorption by osteoclasts (1). This evidence implicates the role of Src in osteoclast resorption activity. We aim to develop a drug that blocks the action of Src protein kinase as a potential treatment of osteoporosis. To do this, we are targeting a domain of the Src protein kinase termed SH2 (src homology 2). SH2 d ...

ORMASIL-DIAMOND composite coatings, made via the sol-gel method have great promise for thermal management applications. They are easy to apply, have excellent stability and can be cured at low temperatures. Recent work has provided the knowledge to tailor ORMASIL properties for this application. An unsolved problem is how to obtain a strong chemical bond to the diamond surface. A novel ultrasonic ...

THE REALIZATION OF SAFE, HIGH-SPEED MAGLEV OR STEEL WHEEL GROUND TRANSPORTATION WILL REQUIRE A RELIABLE SYSTEM TO DETECT OBSTACLES IN THE GUIDEWAY AT A CONSIDERABLE DISTANCE. REQUIREMENTS INCLUDE ALL-WEATHER OPERATION, DAY TIME AND NIGHT TIME OPERATION, AND THE DETECTION OF OBSTACLES AROUND THE GUIDEWAY CURVE (NOT IN LINE OF SIGHT). IN ADDITION THE SYSTEM MUST BE SAFE FOR PASSENGERS ON THE TRAIN, ...

Aspen Systems, Inc. proposes the program "Novel Deicing/Anti-icing materials with Enhanced Environmental Acceptability." We will evaluate novel deicing and anti-icing materials that perform equal to or better than current materials, including the naturally occurring Anti-Freeze proteins, alanine-rich polypeptides, CaMg Acetate, and other materials as environmentally compatible deicing agents. We w ...

Aspen systems proposes to develop high dielectric constant (K), low loss tellurium polymers to meet the design objectives of high energy density capacitors. In the proposed Phase I program we will apply rigorous computational chemical techniques to predict the properties of this new class of polymers. We will attempt the synthesis of the parent polymer of the tellurium family, fabricate films for ...

An innovative high temperature insulation system is proposed which utilizes high temperature compatible refractory aerogels and fibers. This composite structure incorporates key features of the extremely low thermal conductivity of the aerogels and the flexibility, durability, and engineerbility of the fiber matrix. The proposed comosite insulation will result in a conveniently usable, relatively ...

An innovative composite spacer for multilayer insulations is proposed that employs a newly developed ultra-low density aerogels. The design uses the extremely low solid conductivity and reduced gas conduction of aerogels sandwiched in a durable carrier to minimize each mode of heat transfer and maximize applicability. The proposed multilayer insulation will be relatively insensitive to the externa ...