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Tests on cores from the Wairakei Geothermal Project, Wairakei, New Zealand

Description: A series of tests on ckres taken from the Wairakei geothermal site in New Zealand are reported. The cores tests are representative of each of the four basic rock types significant to the functioning of the site. Ultrasonic velocity measurements were made for each rock type tk determine elastic moduli under simulated in situ conditions. Hydrostatic and triaxial deformation tests were performed on three samples of the aquifer rock to determine the effect of in situ stress on the elastic deformati… more
Date: January 1, 1975
Creator: Hendrickson, R. R.
Partner: UNT Libraries Government Documents Department
open access

ACCELERATED PROCESSING OF SB4 AND PREPARATION FOR SB5 PROCESSING AT DWPF

Description: The Defense Waste Processing Facility (DWPF) initiated processing of Sludge Batch 4 (SB4) in May 2007. SB4 was the first DWPF sludge batch to contain significant quantities of HM or high Al sludge. Initial testing with SB4 simulants showed potential negative impacts to DWPF processing; therefore, Savannah River National Laboratory (SRNL) performed extensive testing in an attempt to optimize processing. SRNL's testing has resulted in the highest DWPF production rates since start-up. During SB4 p… more
Date: December 1, 2008
Creator: Herman, C
Partner: UNT Libraries Government Documents Department
open access

Carbon Capture and Storage

Description: Carbon capture and sequestration (CCS) is the long-term isolation of carbon dioxide from the atmosphere through physical, chemical, biological, or engineered processes. This includes a range of approaches including soil carbon sequestration (e.g., through no-till farming), terrestrial biomass sequestration (e.g., through planting forests), direct ocean injection of CO{sub 2} either onto the deep seafloor or into the intermediate depths, injection into deep geological formations, or even direct … more
Date: October 3, 2007
Creator: Friedmann, S.
Partner: UNT Libraries Government Documents Department
open access

HIV/AIDS Information Resources from the National Library of Medicine-STOP

Description: The HIV/AIDS Information Resources from the National Library of Medicine training is designed specifically for the UNCFSP HBCU Screening, Testing, Outreach, and Prevention (STOP) HIV/AIDS Program project members to provide valuable health information resources from the National Library of Medicine and other reliable sources to increase awareness of the wealth of treatment information and educational materials that are available on the Internet and to improve prevention and treatment education f… more
Date: June 15, 2010
Creator: Templin-Branner, W. and N. Dancy
Partner: UNT Libraries Government Documents Department
open access

Extended Community: An Oral History of the Community Environmental Monitoring Program (CEMP), 1989 - 2003

Description: Studying the Community Environmental Monitoring Program (CEMP) provides a unique opportunity to trace a concept created by two nuclear industry originators from inception, as it transitioned through several stewardship agencies, to management by a non-profit organization. This transition is informed not only by changes over two decades in the views of the general populace toward nuclear testing but also by changing political climates and public policies. Several parallel histories accompanied t… more
Date: July 1, 2004
Creator: DeSilva, Susan
Partner: UNT Libraries Government Documents Department
open access

Corrosion Behavior of Nickel Alloys in Wet Hydrofluoric Acid

Description: Hydrofluoric acid is a water solution of hydrogen fluoride (HF). Hydrofluoric acid is used widely in diverse types of industrial applications; traditionally, it is used in pickling solutions in the metal industry, in the fabrication of chlorofluorocarbon compounds, as an alkylation agent for gasoline and as an etching agent in the industry of glass. In recent years, hydrofluoric acid has extensively been used in the manufacture of semiconductors and microelectronics during the wet chemical clea… more
Date: February 6, 2004
Creator: Rebak, R. B.
Partner: UNT Libraries Government Documents Department
open access

Modeling the Reactions of Energetic Materials in the Condensed Phase

Description: High explosive (HE) materials are unique for having a strong exothermic reactivity, which has made them desirable for both military and commercial applications. Although the history of HE materials is long, condensed-phase properties are poorly understood. Understanding the condensed-phase properties of HE materials is important for determining stability and performance. Information regarding HE material properties (for example, the physical, chemical, and mechanical behaviors of the constituen… more
Date: December 3, 2003
Creator: Fried, L. E.; Manaa, M. R. & Lewis, J. P.
Partner: UNT Libraries Government Documents Department
open access

Wind Power Today: 1998 Wind Energy Program Highlights

Description: The US Department of Energy's Office of Energy Efficiency and Renewable Energy manages the Federal Wind Energy Program. The mission of the program is to help the US wind industry to complete the research, testing, and field verification needed to fully develop advanced wind technologies that will lead the world in cost-effectiveness and reliability. This publication, printed annually, provides a summary of significant achievements in wind energy made during the previous calendar year. Articles … more
Date: June 17, 1999
Creator: Tromly, K.
Partner: UNT Libraries Government Documents Department
open access

Analysis and Classification of Mammography Reports Using Maximum Variation Sampling

Description: Currently, no automated means of detecting abnormal mammograms exist. While knowledge discovery capabilities through data mining and data analytics tools are widespread in many industries, the healthcare industry as a whole lags far behind. Providers are only just beginning to recognize the value of data mining as a tool to analyze patient care and clinical outcomes. The research conducted by the authors investigates the use of genetic algorithms for classification of unstructured mammography r… more
Date: January 1, 2011
Creator: Patton, Robert M.; Beckerman, Barbara G. & Potok, Thomas E.
Partner: UNT Libraries Government Documents Department
open access

Subcritical Crack Growth in Ceramic Composites at High Temperature Measured Using Digital Image Correlation

Description: An in situ experimental technique is described that allows high resolution, high sensitivity determination of displacements and full-field strains during high temperature mechanical testing. The technique is used to investigate elevated temperature crack growth in SiC/Nicalon sub f composites. At 1150 degrees C, the reinforcing fibers have a higher creep susceptibility than the matrix. Fiber creep leads to relaxation of crack bridging tractions, resulting in subcritical crack growth. Differenti… more
Date: January 11, 1996
Creator: Mumm, D. R.; Morris, W. L.; Dadkhah, M. S. & Cox, B. N.
Partner: UNT Libraries Government Documents Department
open access

Ohio's First Ethanol-Fueled Light-Duty Fleet: Final Study Results

Description: In 1996, the State of Ohio established a project to demonstrate the use of an ethanol blend transportation fuel in flexible-fuel vehicles. This report presents the data collection and analysis from this project, with particular focus on vehicle performance, cost of operation and limited emissions testing.
Date: December 31, 1998
Creator: Whalen, P.; Poole, L. & Howard, R.
Partner: UNT Libraries Government Documents Department
open access

OUT Success Stories: National Wind Technology Center

Description: The National Wind Technology Center (NWTC) is the U.S. Department of Energy's national center for wind turbine research and development. The unique wind characteristics at the NWTC provide an ideal environment for testing wind turbines in power-producing modes as well as in extreme, high-wind conditions.
Date: August 31, 2000
Creator: Jones, J. & Green, B.
Partner: UNT Libraries Government Documents Department
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