Award Data

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Clarksean and Associates proposes to analyze the cracking of arresting hooks that occurs during the manufacturing process. The analysis process will consider the hardface coating, fusing,and heat treatment of the arresting hooks. The modeling approach uses separate finite element software packages to analyze the thermal (FIDAP) and residual stress formation (NIKE3D). A unique one-dimensional su ...

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Survival of present day microelectronic circuits depends on their protection from self generated and external electromagnetic interference. This proposal is oriented toward the class of interference generally referred to as overvoltage transients. Means for mitigating these transients include gas discharge tubes, and various solid state devices. Each of these has their own advantages in particu ...

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There is much need for lasers with emission wavelengths in the mid-infrared (2 to 5 microns) for applications that include molecular spectroscopy, environmental and atmospheric trace gas analysis, long haul fiber communications, laser surgery, and atmospheric free-space laser transmission. The Lebedev Physical Institute in Moscow has reported double heterostructure GaInAsSb/GaAlAsSb lasers emittin ...

The need for small portable, low-cost instruments for field environmental measurements is well documented. Nomadics is developing powerful handheld instruments based on the portable computers and PCMCIA cards. We intent to marry existing proven (but not yet deployed) sensor technologies with portable computers (such as laptops, palmtops and PDAs) using the industry standard PCMCIA card and virtu ...

This proposal describes a novel, inherently simple processing concept for the synthesis of monodispersed pitch powders suitable for use in the fabrication of high strength monolithic carbon and carbon-carbon composite artifacts. The starting materials may be either devolatilized isotropic petroleum pitch or pitches consisting entirely of polyaromatic mesophase. Powder preparation mimics the approa ...

AstroPower proposes to develop a new high voltage solar cell for photovoltaic linear concentrator arrays based on our thin GaAs solar cell and epitaxial lateral overgrowth technologies and applying lateral segment interconnection techniques. This solar cell design has several advantages which make it ideal for space concentrator systems. These are high system voltage (10 to 500 volts per cell), re ...

Lanxide Corporation proposes to demonstrate innovative approaches for fabrication of thin wall ceramic sheet. The goal of this project is to make a low weight ceramic recuperator suitable for aero-engine applications. Lanxide will extend current processing techniques using commercial paper mill for forming continuous ceramic preform sheet with goal of reducing recuperator wall thickness from a c ...