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Continuous Czochralski growth. Silicon sheet growth development of the large area silicon sheet task of the Low Cost Silicon Solar Array Project. First quarterly progress report, October--December 1977

Description: The development of equipment and processes to produce single crystal solar silicon by a continuous Czochralski method was studied. ''Continuous'' is defined as the ability to produce 100 kilograms of crystal from only one melt container. The equipment to be used is a Hamco CG2000 Production Crystal Grower. Certain modifications will be made to the grower to enable periodic replenishment of silicon into the crucible and removal of grown crystals. The crystal grower was constr… more
Date: December 31, 1977
Partner: UNT Libraries Government Documents Department
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Teratology studies of lewisite and sulfur mustard agents: Effects of lewisite in rats and rabbits: Final report

Description: Lewisite was administered to rats and rabbits by intragastric intubation. Maternal animals were weighed periodically, and, at necropsy (20 dg (days of gestation) in rats and 30 dg in rabbits), were examined for gross lesions of major organs and reproductive performances; live fetuses were weighed and examined for external, internal and skeletal defect. In rats, a dose level of 1.5 mg/kg did not induce toxic or teratogenic responses in maternal and fetal body weights and a significant reduction … more
Date: December 31, 1987
Creator: Hackett, P L; Sasser, L B; Rommereim, R L; Cushing, J A; Buschbom, R L & Kalkwarf, D R
Partner: UNT Libraries Government Documents Department
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Thermal stability of ferritic alloys for fossil-fuel processing systems. Final technical report, September 1, 1978-August 31, 1981. [at 475/sup 0/C]

Description: This research program has investigated the thermal stability of several ferritic stainless steels containing 15 to 18 weight percent chromium over the temperature range 400/sup 0/C to 550/sup 0/C where the 475/sup 0/C embrittlement reaction is of concern. A major part of the experimental work was concerned with the effect of ternary additions of up to 6 weight percent; aluminum on the kinetics and the magnitude of the embrittlement reaction. The work also included a binary Fe-18Cr alloy, a tern… more
Date: December 31, 1981
Creator: Polonis, D.H. & Spear, W.S.
Partner: UNT Libraries Government Documents Department
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Experimental Geothermal Research Facilities study (Phase 0). Final report. Volume 1

Description: Phase 0 of a project for Experimental Geothermal Research Facilities focuses on identification of a representative liquid-dominated geothermal reservoir of moderate temperature and salinity, preliminary engineering design of an appropriate energy conversion system, identification of critical technology, and planning for implementation of experimental facilities. The objectives included development of liaison with the industrial sector, to ensure responsiveness to their views in facility require… more
Date: December 31, 1974
Partner: UNT Libraries Government Documents Department
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Final environmental statement for the geothermal leasing program

Description: This second of the four volumes of the Geothermal Leasing Program final impact statement contains the individual environmental statements for the leasing of federally owned geothermal resources for development in three specific areas: Clear Lake-Geysers; Mono Lake-Long Valley; and Imperial Valley, all in California. It also includes a summary of the written comments received and departmental responses relative to the Draft Environmental Impact Statement issued in 1971; comments and responses on… more
Date: December 31, 1973
Partner: UNT Libraries Government Documents Department
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Reservoir and injection technology and Heat Extraction Project

Description: For the Stanford Geothermal Program in the fiscal year 1989, the task areas include predictive modeling of reservoir behavior and tracer test interpretation and testing. Major emphasis is in reservoir technology, reinjection technology, and heat extraction. Predictive modeling of reservoir behavior consists of a multi-pronged approach to well test analysis under a variety of conditions. The efforts have been directed to designing and analyzing well tests in (1) naturally fractured reservoirs; (… more
Date: December 31, 1989
Creator: Horne, R.N.; Ramey, H.H. Jr.; Miller, F.G.; Brigham, W.E. & Kruger, P.
Partner: UNT Libraries Government Documents Department
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The Supplemental Nutrition Assistance Program (SNAP): Categorical Eligibility

Description: This report discusses categorical eligibility and some of the issues raised by it. It first describes the three different types of categorical eligibility: traditional categorical eligibility conveyed through receipt of need-based cash assistance, and the newer "narrow" and "broad-based" categorical eligibilities conveyed via TANF "noncash" benefits. It also provides recent information on current state practices with regard to categorical eligibility. Finally, the report discusses proposals to … more
Date: December 31, 2013
Creator: Falk, Gene & Aussenberg, Randy Alison
Partner: UNT Libraries Government Documents Department
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Army Corps of Engineers: Known Performance Issues with New Orleans Drainage Canal Pumps Have Been Addressed, but Guidance on Future Contracts Is Needed

Description: A letter report issued by the Government Accountability Office with an abstract that begins "Hurricane Katrina caused several breaches in the floodwalls along three drainage canals in New Orleans, contributing to catastrophic flooding. To restore the pre-Katrina level of hurricane-related flood protection, the Army Corps of Engineers (Corps) decided to acquire several large-capacity pumping systems. During the process of acquiring, testing, and installing the pumping systems, issues with the pu… more
Date: December 31, 2007
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
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Border Security: Immigration Enforcement Between Ports of Entry

Description: This report reviews efforts to combat unauthorized migration across the Southwest border in the nearly three decades since the Immigration Reform and Control Act (IRCA) initiated the modern era in migration control. In reviewing such efforts, the report takes stock of the current state of border security and considers lessons that may be learned about enhanced enforcement at U.S. borders.
Date: December 31, 2014
Creator: Seghetti, Lisa
Partner: UNT Libraries Government Documents Department
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State Challenges to Federal Enforcement of Immigration Law: Historical Precedents and Pending Litigation

Description: This report provides an overview of prior and pending challenges by states to federal officials' alleged failure to enforce the Immigration and Nationality Act (INA) or other provisions of immigration law. It begins by discussing the lawsuits filed by six states in the mid-1990s; Arizona's counterclaims to the federal government's suit to enjoin enforcement of S.B. 1070; and Mississippi's challenge to the Deferred Action for Childhood Arrivals (DACA) initiative. It then describes the challenge … more
Date: December 31, 2014
Creator: Manuel, Kate M.
Partner: UNT Libraries Government Documents Department
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Understanding China's Political System

Description: This report provides an overview of contemporary PRC (People's Republic of China) politics by analyzing the main institutional actors and their interactions. The goal is not so much to provide the definitive study of the current political dynamics in China, but to offer a framework for examining and understanding PRC politics as they play out with respect to particular policies or issues.
Date: December 31, 2009
Creator: Dumbaugh, Kerry & Martin, Michael F.
Partner: UNT Libraries Government Documents Department
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Development of Sensors Using Evanescent Wave Interactions in Sapphire Optical Fibers

Description: The development of tunable diode laser absorption sensors for measurements in industrial boilers, both through direct absorption and evanescent wave absorption have been performed in the work presented here. These sensors use both direct and indirect absorption through the use of evanescent interactions within a coal firing combustion environment. For the direct absorption sensor, wavelength modulation absorption spectroscopy with second-harmonic detection was implemented within a physical prob… more
Date: December 31, 2006
Creator: Renfro, Michael W. & Jordan, Eric H.
Partner: UNT Libraries Government Documents Department
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Progress Report on the Concentration of Pitchblende

Description: Abstract: "The results of leaching studies on sulphide froth products obtained from the flotation of high-sulphur pitchblende are presented. The distribution of molybdenum in flotation products is also given. The flotation test at Middlesex is evaluated."
Date: December 31, 1950
Creator: Wesner, A. L.; Tangel, O. F. & Richardson, A. C.
Partner: UNT Libraries Government Documents Department
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Development of All-Solid-State Sensors for Measurement of Nitric Oxide and Ammonia Concentrations by Optical Absorption in Particle-Laden Combustion Exhaust Streams

Description: An all-solid-state continuous-wave (cw) laser system for ultraviolet absorption measurements of the nitric oxide (NO) molecule has been developed and demonstrated. For the NO sensor, 250 nW of tunable cw ultraviolet radiation is produced by sum-frequency-mixing of 532-nm radiation from a diode-pumped Nd:YAG laser and tunable 395-nm radiation from an external cavity diode laser (ECDL). The sum-frequency-mixing process occurs in a beta-barium borate crystal. The nitric oxide absorption measuremen… more
Date: December 31, 2006
Creator: Caton, Jerald A.; Annamalai, Kalyan & Lucht, Robert P.
Partner: UNT Libraries Government Documents Department
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Feasibility of In Situ Redox Manipulation of Subsurface Sediments for RDX Remediation at Pantex

Description: This laboratory study was conducted to assess RDX (hexahydro-1,3,5-trinitro-1,3,5 triazine) abiotic degradation by chemically reduced sediments and other geochemical aspects of the application of this technology to remediation of RDX contamination in groundwater at the U.S. DOE Pantex facility...
Date: December 31, 2001
Creator: Szecsody, James E.; Fruchter, Jonathan S.; Mckinley, Mark A.; Resch, Charles T. & Gilmore, Tyler J.
Partner: UNT Libraries Government Documents Department
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Advanced Microturbine Systems

Description: In July 2000, the United Technologies Research Center (UTRC) was one of five recipients of a US Department of Energy contract under the Advanced Microturbine System (AMS) program managed by the Office of Distributed Energy (DE). The AMS program resulted from several government-industry workshops that recognized that microturbine systems could play an important role in improving customer choice and value for electrical power. That is, the group believed that electrical power could be delivered t… more
Date: December 31, 2008
Creator: Rosfjord, T.; Tredway, W.; Chen, A.; Mulugeta, J. & Bhatia, T.
Partner: UNT Libraries Government Documents Department
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U.S. Crude Oil Export Policy: Background and Considerations

Description: The crude oil export policy debate has multiple dimensions and complexities. As U.S. light tight oil (LTO) production has increased--along with additional oil supply from Canada--certain challenges have emerged that affect some oil producers and refiners. While the economic arguments both for and against U.S. crude oil exports are quite complex and dynamic, there are some fundamental concepts and issues that may be worth considering during debate about exporting U.S. crude oil. This report pro… more
Date: December 31, 2014
Creator: Brown, Phillip; Pirog, Robert; Vann, Adam; Fergusson, Ian F.; Ratner, Michael & Ramseur, Jonathan L.
Partner: UNT Libraries Government Documents Department
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Topical Report on Refining of MgX and Other Uranium-Bearing Materials

Description: This report discusses a study which explores the effects of feed and acidity on extractive methods. From abstract: "Results from fractional precipitation of MgX from dilute sulfuric acid solutions indicate that, in the presence of sufficienct iron, phosphate is precipitated as ferric phosphate, and not as uranyl phosphate."
Date: December 31, 1950
Creator: Ewing, R. A.; Belcher, R. L.; Kiehl, S. J., Jr. & Bearse, A. E.
Partner: UNT Libraries Government Documents Department
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Individual Particle Analysis of Ambient PM 2.5 Using Advanced Electron Microscopy Techniques

Description: The overall goal of this project was to demonstrate a combination of advanced electron microscopy techniques that can be effectively used to identify and characterize individual particles and their sources. Specific techniques to be used include high-angle annular dark field scanning transmission electron microscopy (HAADF-STEM), STEM energy dispersive X-ray spectrometry (EDX), and energy-filtered TEM (EFTEM). A series of ambient PM{sub 2.5} samples were collected in communities in southwestern… more
Date: December 31, 2006
Creator: Keeler, Gerald J. & Morishita, Masako
Partner: UNT Libraries Government Documents Department
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Energy Star Lighting Verification Program (Program for the Evaluation and Analysis of Residential Lighting)

Description: The Program for the Evaluation and Analysis of Residential Lighting (PEARL) is a watchdog program. It was created in response to complaints received by utility program managers about the performance of certain Energy Star lighting products being promoted within their service territories and the lack of a self-policing mechanism within the lighting industry that would ensure the reliability of these products and their compliance with ENERGY STAR specifications. To remedy these problems, PEARL pu… more
Date: December 31, 2007
Creator: O'Rourke, Conan & Zhou, Yutao
Partner: UNT Libraries Government Documents Department
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Amended Silicated for Mercury Control

Description: Amended Silicates{trademark}, a powdered, noncarbon mercury-control sorbent, was tested at Duke Energy's Miami Fort Station, Unit 6 during the first quarter of 2006. Unit 6 is a 175-MW boiler with a cold-side electrostatic precipitator (ESP). The plant burns run-of-the-river eastern bituminous coal with typical ash contents ranging from 8-15% and sulfur contents from 1.6-2.6% on an as-received basis. The performance of the Amended Silicates sorbent was compared with that for powdered activated … more
Date: December 31, 2006
Creator: Butz, James; Broderick, Thomas & Turchi, Craig
Partner: UNT Libraries Government Documents Department
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