Award Data

Turbulence of gas flows by its very nature is one of the most difficult things to model and measure. We propose to develop a new way of measuring the turbulence and to compare these measurements to predictions using the k-epsilon model. Typical measurements, in the past, use smoke, Schlierin or shadow graph techniques to visually infer turbulence characteristics. These features are either motio ...

The objective of this work is to develop analytical techniques to characterize wear and gouging phenomena of slippers at speeds up to hypersonic and demonstrate means to evaluate or reduce slipper wear/gouging. Specifically, we will develop analytical techniques that can be used to predict slipper wear patterns and gouging phenomena throughout the sled velocity regime to Mach 10. This will inclu ...

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Arca Systems proposes to initiate the design and development of an intrusion detection system for the GCCS LES (and similar environments). Many current intrusion detection tools are Unix-based, focused on a single host or on a generally homogeneous distributed environment. The notional GCCS LES environment makes extensive use of distributed architecture, using support from the COTS technologies ...

Arca proposes research leading to development of a suite of methodology support products to help meet the need for innovative assurance techniques appropriate for emerging information technologies. The product will consist of a licensable methodology and supporting materials for specifying, building, and evaluating assurance arguments for products and systems based on the capability of security en ...

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In the last several years there has been an explosion of information regarding the nature of peptide antigens expressed on human tumors together with class I molecules encoded in the Major Histocompatibility Complex (MHC) and recognized by cytotoxic T lymphocytes (CTL). One very successful approach aimed at the identification of these antigens, termed Direct Identification of Relevant Epitopes for ...

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The intent of this program is to develop workable concepts that will result in commercial and military high performance, covert, low cost, adaptable antennas in gain, coverage, and a variety of equipment applicability for hand held use. Ideally, the program will result in a technology capable of significantly foreshortening antennas (4:1) while maintaining low losses, hemispheric coverage, novel ...