Award Data

Since the mid-1970's, information on current and emerging drug abuse patterns and trends have beenepidemiologic data derived primarily from national probability samples and population-based surveys.however, there has been increasing interest in use of data generated through ethnographic methods toof drug abusing behavior. While surveys typically answer questions about the nature and extent of dto ...

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The Department of Defense and their contractors are currently limited in their ability to fabricate high temperature thermal protection and structural materials and include those materials in new aerospace vehicle designs without risk of thermally induced material failures which might compromise the new designs. Major improvements in structural designs will be difficult without cost effective mat ...

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Diode laser pumped gas phase molecules offer an attractive solution to a current crucial Air Force need: efficient, compact, reliable and rugged lasers that operate int he 3 to 5 and 8 to 12 micron wavelength range. Direct diode laser pumping or excitation via diode laser pumped solid state lasers both offer attractive reatures. From an efficiency and size perspective, the best solution is probabl ...

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DESCRIPTION: Cancer treatment by gene therapy, in which an exogenous gene is introduced into tumor cells, is receiving increasing attention. Metabolism of a specific substrate by the enzyme encoded by the transduced gene produces a substance toxic to the tumor. In the most common approach, the gene for the Herpes Virus Thymidine Kinase has been introduced by retroviral transduction. Although p ...

The problem facing many U. S. high temperature material vendors is the high cost and long span times required for testing with "conventional" techniques. The higher the heat flux required for the test, the more expensive the test, and the more elaborate the facility required. The cost and schedule required for testing by "conventional" means becomes a global competitiveness problem for U. S. hig ...

Efforts to apply active noise and vibration control commercially, while intensifying, continue to be hampered by the cost of the computers required to implement the active algorithms. Currently, the cost of wide-band control is prohibitive for lightly damped systems such as precision structures or highly reverberant acoustic spaces, even if the system has just one canceling actuator and one error ...