Award Data

Wind noise in outdoor measuemetn micropnones can mask an acoustic signal. Windscreens provide some wind noise reduction; however, those typically used for outdoor applications provide noise reductions of approximately 10-15 dB. Planning Systems Incorporated (PSI) proposes to design and test a Multiple Aperture Sensor System (MASS) consisting of a microphone, a processor, and data acquisitio and ...

The production of semi-conductor wafers is a multibillion dollar industry. The 1996 worldwide semiconductor market is estimated at $162 billion with a growth potential to $309 billion by the year 2000. Thus, even a small improvement in control during the manufacturing process could have a large impact on the economic viability of many companies and products. A critical factor in all semiconduct ...

The project objective are to develop a new software method for the dynamic analysis of aircraft and to prove the potential of unique high angle of attack Leading Edge Vortex Control (LEVC) devices. The software method will be an upgrade of a current computer code. The upgrade will include the effects of hysteresis during dynamic stall. New methods recently published employing state-spac ...

THE OBJECTIVE OF THE PHASE I WORK PRESENTED IN THIS PROPOSAL IS TO GENERATE A PERFORMANCE AND FUNCTIONAL SPECIFICATION AND BLOCK DIAGRAM DESIGN OF A SINGLE VLSI CHIP IMPLEMENTING THE AUDIO TONE ENCODER AND DECODER FUNCTIONS OF A DIGITAL MODEM. THE TONE ENCODER/DECODER CHIP, WHEN COMBINED WITH AN OFF-THE-SHELF AD/CONVERTER, WILL PROVIDE A COMPLETE TWO-CHIP IMPLEMENTATION OF THE DIGITAL MODEM REQUIR ...

Investigation of failed composite components requires tress analysis to assess their structural integrity. Currently there exist no general-purpose software packages for composite structural analysis that are accessible to failure investigators who are not experts in these types of analysis. The proposed research and development effort will fill this void with a flexible user friendly, PC-based ...

We describe laser communication concepts that result in an untethered Helmet Mounted Display (HMD) virtual reality system. Current systems limit user mobility by requiring wired communication connections between the HMD and the system computer. Our proposed concepts replace the tether with wireless optical communication links. A high-data-rate forward link is provided to carry digital video data ...

PacAstro has shown that significant cost reduction and operational advantages are possible for small orbital and suborbital mission using a simple pressure fed, LOX/Kerosene vehicle configuration. Under private and government funding, we have begun development of the engine which is critical to realize extremely low cost, highly reliable and highly capable space transportation. Beginning with a p ...

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SEVERAL STATES ARE CURRENTLY SEEKING MUCH-NEEDED NEW LOW-LEVEL RADIOACTIVE DISPOSAL SITES IN ACCORDANCE WITH THE LOW-LEVEL RADIOACTIVE WASTE POLICY ACT OF 1980. ANY NEW COMMERCIALREQUIREMENT THAT A SITE BE CAPABLE OF BEING MODELED AND THATITS PERFORMANCE BE ASSURED FOR 500 YEARS. FOR MOST SITES, THE HYDROGEOLOGICAL AND RADIONUCLIDE TRANSPORT CHARACTERIS- TICS OF THE UNSATURATED ZONE ARE MAJOR FACT ...

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