Award Data

Unsteady buffet forces excite the vertical tails of aircraft flying at high angles of attack and cause excessive stress and vibration in the tail structure. This results in increased fatigue which ultimately reduces aircraft life. It has been shown by ACX that distributed piezoceramics can significantly reduce the buffet loads on the tail structure of an F/A-18. ACX proposes to develop a simila ...

The proposed research combines an innovative eigenvector method with other electromagnetic techniques to produce a hybrid approach towards solving the EM coupling to satellite cavity problem. The physical structure is divided into an exterior region and one or more interior regions. The exterior region is modeled with method of moments (MOM) and or hybrids of MOM with the uniform theory of diffr ...

The major hindrance in the way of integration of a laser source and an external modulator in ferroelectrics has for long been the lack of efficient waveguide lasers and amplifers suitable for integration in these materials. However, with the recent resurgence of interest in rare-earth doped, waveguide lasers in LiNbO3 and in view of the promising results already achieved, the on-chip integration ...

The development of an Air Force Repair Tracking System (AF-RTS) is proposed for electronic circuit cards. AF-RTS will consist of an integration of several commercially available products as well as a DOD endorsed IEEE database standard (P1239) for representing maintenance and repair data. The database will be hosted on an OTS RDBMS that is compatible with the internet world wide web. The human- ...

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Imaging spectrometers are a powerful new tool for performing hyperspectral measurements for remote sensing, environmental monitoring, and target detection and characterization applications. The major problem associated with hyperspectral measurements now, however, is not the technology for performing the measurements but rather the technology for analyzing and recording the high data rates genera ...

The Defense Special Weapons Agency (DSWA) has identified a need to improve the radiation hardness of advanced integrated circuit technologies. To be practical, this must be achieved in a cost effective way. This proposal by AET, Inc. directly addresses these concerns. Specifi-cally, this proposal provides a means to achieve significant advance in radiation hardness of large scale integrated cir ...

Cryogenic cooling objectives for space applications require reduced size, weight, and input power; longer life and increased reliability; and increased net cooling load. The Reverse-Brayton expander cycle has the potential to meet all these objectives. Previous efforts to implement this cycle for long-life cryocoolers utilized "room temperature" tilting pad bearings. The warm bearings provided ...

Compact, cost-effective energy storage is important for defense installations, critical facilities, and industry in order to have assured, uninterruptible power sources. Power quality and power conditioning systems play a vital role in enhancing productivity in an era where microprocessor-controlled systems are vulnerable to momentary power outages. Capacitive energy storage systems offer an att ...

This program develops and demonstrates an innovative, low cost, solution and non-vacuum based process for deposition of YBCO on continuous, textured metal tape substrates. It is easily scaleable for long lengths of continuous conductors, and is an inherently more cost effective as it is scaled.Recent advances in the deposition of thick YBCO films have demonstrated that fabricating practical, long ...