Award Data

This innovation proposes the use of a thin film stratospheric balloon to lift a launch vehicle with a payload to an altitude above most of the Earth's atmosphere, then ignite the launch vehicle rocket motor. It will have the capability to carry the payload to its final destination, either into Earth orbit or to the mission design goal. This launch system will eliminate the first stage rocket thr ...

ALGORITHMS ARE DERIVED THAT DEFINE THE PATHS OF MAXIMUM COHERENCY FOR A SEISMIC EVENT GENERATED BY FIRING AN ARTILLERY WEAPON FROM AN ARBITRARY LOCATION. SIGNAL EXTRACTION TECHNIQUES ARE DESCRIBED TO EXTRACT THE COHERENT SIGNAL FROM AN EVENT RECORDED ON MULTIPLE RECEIVERS. SIMULATED BATTLEFIELD RECORDINGS ARE GENERATED BY TREATING THE SEISMIC SIGNATURE OF ARTILLERY WEAPONS AS IMPULSE RESPONSES FRO ...

The advanced technology described in this proposal promises to increase the performance of laboratory and, specifically, tabletop x-ray lasers by up to an order of magnitude. Such gains in performance coupled with compact technology will lead to the introduction of the world s first table-top, commercial x-ray laser. Tetra proposes to develop an advanced driver for the laboratory laser based upo ...

There is a substantial body of evidence demonstrating that biofilms growing inside the water lines of dental units pose a significant risk as a source of infection. The problem has been recognized by practitioners, regulators, manufacturers, and the ADA, with the ADA proposing a set of guidelines for water quality that include a limit of 200 colony forming units per milliliter for the year 2000. ...

A quality simulation which allows a user to simulate the acoustic emissions in a multi-source environment and then study the effects these conditions have on a set of acoustic sensors would be of great value. As acoustic sensors technology continues to advance with robust algorithms for detection, tracking and identification as well as high performance hardware providing real-time operation, thes ...

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This proposal addresses an approach to millimeter wave imaging called encoded image detection (EID). The concept offers a means of achieving a low cost, all weather seeker for smart munition and submunitions. Its low cost potential makes adaptation of the imager also attractive for a variety of other military applications such as search and rescue, surveillance, and security. Most current devel ...

The achievement in realizing low-loss waveguides on any surface of interests using photolime gel polymer motivates us to further investigate the feasibility of employing such a unique material as a multi-functional polymer that can provide modulation, switching, wavelength conversion and amplification simultaneously on any optoelectronic substrate of interest. In this program, we propose to resear ...

THE PROBLEMS OF ATTENUATING DUCTED NOISE AND DISTRIBUTED NOISE ARE ADDRESSED USING ACTIVE NOISE CANCELLATION TECHNIQUES. FOR DUCTED NOISE, A COMBINATION OF COMMERCIAL ANC EQUIPMENT WITH LOW PRESSURE DROP MUFFLERS IN AN SVS PROPRIETARY CONFIGURATION WILL BE EXAMINED. COST AND PERFORMANCE TRADES BETWEEN THE ACTIVE CONFIGURATION AND PASSIVE MUFFLERS WILL BE MADE AND AN EXPERIMENT WILL BE DESIGNED FOR ...

Active clearance control promises considerable improvements in rotating component efficiencies and compressor surge margin. These improvements are essential to meet stringent performance requirements for next generation propulsion systems. The improvements are more pronounced for small engines, because clearance effect in small engines accounts for a bigger portion of rotating component losses tha ...