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40436 November 18, 1996 Advanced Safeguards, Inc. In high-security Department of Energy and Department of Defense facilities, cold-chemical smoke generators are used to produce visual obscurants in order to delay unauthorized intruders. The technology is based on the rapid rejection of two chemicals, contained within the device, into the surrounding air w ...

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The adaptive single user receiver invented at AF LAB has been shown to suppress multiuser and certain forms of narrow-band interference in adecision directed mode during the entire transmission, without requiring knowledge of other users spreading codes, timing or phase information in direct-sequence proposal, we investigate the use of our single user receiver for secure communications as required ...

40368 Beam Diagnostics Lab, Inc. Existing and proposed particle accelerators used in basic research experiments need to record fast moving particles coming from many directions. This project will develop a multi-channel optical measurement system which provides all observation data to a single oscilloscope. The technique utilizes the wide frequency band of a single mode optical fiber. It uses ...

While the efficiency of x-ray sources is defined by the laws of physics, present day sources do not take full advantage of those laws. Other materials thant tungsten are not only more efficient in producing bremsstrahlung, but have "characteristic" x-rays that can make the beam harder instead of softer (as in the case for tungsten). Today's tubes also do not use optimum angles for the incident e ...

BONN Corporation (BONN) has chosen to concentrate on a methodology that computes an optimal target search in near-real-time, with the capability of accommodating user-definable optimality based upon time / pathlength, probability of target detection target value, and survivability in a dense threat environment. This methodology will be extensible to address multiple airborne platforms and multipl ...

The Navy's reinforced concrete structures represent an invaluable asset to the nation's defense preparedness. However, some facilities are approaching a critical state of disrepair and represent a substantial facility management burden due to uncontrolled severe deterioration of reinforced concrete in marine environments. Naval Facilities Engineering Service Center's professionals estimate that ...

To advance scientific and medical understanding of blood chemistry, we propose to develop modern medical simulation software that will be of use in predicting outcomes of medical interventions. For example, the chemical reactions between hemoglobin, oxygen, carbon dioxide, and electrolytes that occur in blood are essential to understanding human physiology, but still confuse students at many leve ...