UNT Libraries Government Documents Department - 3 Matching Results

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Eyeglass Large Aperture, Lightweight Space Optics FY2000 - FY2002 LDRD Strategic Initiative

Description: A series of studies by the Air Force, the National Reconnaissance Office and NASA have identified the critical role played by large optics in fulfilling many of the space related missions of these agencies. Whether it is the Next Generation Space Telescope for NASA, high resolution imaging systems for NRO, or beam weaponry for the Air Force, the diameter of the primary optic is central to achieving high resolution (imaging) or a small spot size on target (lethality). While the detailed requirements differ for each application (high resolution imaging over the visible and near-infrared for earth observation, high damage threshold but single-wavelength operation for directed energy), the challenges of a large, lightweight primary optic which is space compatible and operates with high efficiency are the same. The advantage of such large optics to national surveillance applications is that it permits these observations to be carried-out with much greater effectiveness than with smaller optics. For laser weapons, the advantage is that it permits more tightly focused beams which can be leveraged into either greater effective range, reduced laser power, and/or smaller on-target spot-sizes; weapon systems can be made either much more effective or much less expensive. This application requires only single-wavelength capability, but places an emphasis upon robust, rapidly targetable optics. The advantages of large aperture optics to astronomy are that it increases the sensitivity and resolution with which we can view the universe. This can be utilized either for general purpose astronomy, allowing us to examine greater numbers of objects in more detail and at greater range, or it can enable the direct detection and detailed examination of extra-solar planets. This application requires large apertures (for both light-gathering and resolution reasons), with broad-band spectral capability, but does not emphasize either large fields-of-view or pointing agility. Despite differences in their requirements ...
Date: February 10, 2003
Creator: Hyde, R

Results of Detailed Hydrologic Characterization Tests - Fiscal Year 2002

Description: This report provides the results of detailed hydrologic characterization tests conducted within newly constructed Hanford Site wells during FY 2002. Results from the tests provide hydrologic information that supports the needs of RCRA waste management characterization and sitewide groundwater monitoring and modeling programs and reduces the uncertainty of groundwater flow conditions at selected Hanford locations.
Date: March 10, 2003
Creator: Spane, Frank A.; Newcomer, Darrell R. & Thorne, Paul D.

Trends in U.S. Global AIDS Spending: FY2000-FY2008

Description: This report describes how HIV/AIDS, tuberculosis (TB), and malaria are interlinked and exacerbate efforts to control each disease, but primarily addresses funding issues related to U.S. global HIV/AIDS initiatives. It provides background information on the key U.S. agencies that implement global HIV/AIDS programs, analyzes U.S. spending on HIV/AIDS by U.S. agency and department, and presents some issues Congress might consider, particularly as debate on the President's Emergency Plan for AIDS Relief (PEPFAR) reauthorization ensues.
Date: April 10, 2008
Creator: Salaam-Blyther, Tiaji