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Office of Scientific & Technical Information Technical Reports
246
Congressional Research Service Reports
142
Defense Base Closure and Realignment Commission
115
Government Accountability Office Reports
79
Texas Patents
55
Texas Attorney General Opinions
46
Texas State Publications
26
Technical Report Archive and Image Library
25
National Advisory Committee for Aeronautics Collection
15
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747 Matching Results
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5/10-MVA high temperature superconducting power transformer. Progress report for the period May 1998 - June 1999
None
Date:
July 28, 1999
Creator:
Intermagnetics General Corporation
Object Type:
Report
System:
The UNT Digital Library
10-30 Bev/c ELASTIC SCATTERING OF $pi$$sup +-$+ p, p + p, /anti p/ + p AND K$sup +-$ + p OVER THE /t/ RANGE 0.0005 TO 1 (Bev/c)$sup 2$
None
Date:
July 28, 1964
Creator:
Foley, K. J.; Gilmore, R. S.; Jones, R. S.; Lindenbaum, S. J.; Love, W. A.; Ozaki, S. et al.
Object Type:
Report
System:
The UNT Digital Library
200 area weekly report
None
Date:
July 28, 1955
Creator:
Christl, R. J.
Object Type:
Report
System:
The UNT Digital Library
3D finite-difference frequency-domain code for electromagnetic induction tomography
The effect of shrapnel on target chamber components and experiments at large lasers such as the National Ignition Facility at LLNL and the Megajoule Laser at CESTA in France is an important issue in fielding targets and exposure samples. Modeling calculations are likely to be an important component of this effort. Some work in this area has been performed by French workers, who are collaborating with the LLNL on many issues relating to target chamber, experiment-component, and diagnostics survival. Experiments have been performed at the PhCbus laser in France to measure shrapnel produced by laser-driven targets; among these shots were experiments that accelerated spheres of a size characteristic of some of the more damaging shrapnel. These spheres were stopped in polyethylene witness plates. The penetration depth is characteristic of the velocity of the shrapnel. Experimental calibration of steel sphere penetration into polyethylene was performed at the CESTA facility. The penetration depth has been reported (ref. 1) and comparisons with modeling calculations have been made (ref. 2). There was interest in a comparison study of the modeling of these experiments to provide independent checks of the calculations. This work has been approved both by DOE headquarters and by the French Atomic …
Date:
July 28, 1999
Creator:
Berryman, J. G.; Champagne, N. J., II & Buettner, H. M.
Object Type:
Article
System:
The UNT Digital Library
Achieving and maintaining cleanliness in NIF amplifiers
Cleanliness measurements made on AMPLAB prototype National Ignition Facility (NIF) laser amplifiers during assembly, cassette transfer, and amplifier operation are summarized. These measurements include particle counts from surface cleanliness assessments using filter swipe techniques and from airborne particle monitoring. Results are compared with similar measurements made on the Beamlet and Nova lasers and in flashlamp test fixtures. Observations of Class 100,000 aerosols after flashlamp firings are discussed. Comparisons are made between typical damage densities on laser amplifier optics from Novette, NOVA, Beamlet, and AMPLAB.
Date:
July 28, 1998
Creator:
Burnham, A. K.; Horvath, J. A.; Letts, S. A.; Menapace, J. A. & Stowers, I. F.
Object Type:
Article
System:
The UNT Digital Library
Actinide Biocolloid Formation in Brine by Halophilic Bacteria
We examined the ability of a halophilic bacterium (WFP 1A) isolated from the Waste Isolation Pilot Plant (WIPP) site to accumulate uranium in order to determine the potential for biocolloid facilitated actinide transport. The bacterial cell Surface functional groups involved in the complexation of the actinide were determined by titration. Uranium, added as uranyl nitrate, was removed from solution at pH 5 by cells but at pH 7 and 9 very little uranium was removed due to its limited volubility. Although present as soluble species, uranyl citrate at pH 5, 7, and 9, and uranyl carbonate at pH 9 were not removed by the bacterium because they were not bioavailable due to their neutral or negative charge. Addition of uranyl EDTA to brine at pH 5, 7, and 9 resulted in the immediate precipitation of U. Transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy (EDS) analysis revealed that uranium was not only associated with the cell surface but also accumulated intracellulary as uranium-enriched granules. Extended X-ray absorption fine structure (EXAFS) analysis, of the bacterial cells indicated the bulk sample contained more than one uranium phase. Nevertheless these results show the potential for the formation of actinide bearing bacterial biocolloids …
Date:
July 28, 1999
Creator:
Gillow, J. B.; Francis, A. J.; Dodge, C. J.; Harris, R.; Beveridge, T. J.; Brady, P. V. et al.
Object Type:
Article
System:
The UNT Digital Library
Adequate Yearly Progress (AYP): Implementation of the No Child Left Behind Act
This report is intended to provide an overview of the Adequate Yearly Process (AYP) concept and several related issues, a description of the AYP provisions of the No Child Left Behind Act, and an analysis of the implementation of these provisions by the U.S. Department of Education (ED) and the states. It will be updated when major administrative actions are taken by ED, or substantial new data on state implementation become available.
Date:
July 28, 2004
Creator:
Riddle, Wayne
Object Type:
Report
System:
The UNT Digital Library
Adjoint sensitivity analysis of an ultrawideband antenna
The frequency domain finite element method using H(curl)-conforming finite elements is a robust technique for full-wave analysis of antennas. As computers become more powerful, it is becoming feasible to not only predict antenna performance, but also to compute sensitivity of antenna performance with respect to multiple parameters. This sensitivity information can then be used for optimization of the design or specification of manufacturing tolerances. In this paper we review the Adjoint Method for sensitivity calculation, and apply it to the problem of optimizing a Ultrawideband antenna.
Date:
July 28, 2011
Creator:
Stephanson, M. B. & White, D. A.
Object Type:
Article
System:
The UNT Digital Library
Advancements in time-resolved x-ray laser induced time-of-flight photoelectron spectroscopy
Time-resolved soft x-ray photoelectron spectroscopy is used to probe the non-steady-state evolution of the valence band electronic structure of laser heated ultra-thin (50 nm) metal foils and bulk semiconductors. Single-shot soft x-ray laser induced time-of-flight photoelectron spectroscopy with picosecond time resolution was used in combination with optical measurements of the disassembly dynamics that have shown the existence of a metastable liquid phase in fs-laser heated metal foils persisting 4-5 ps. This metastable phase is studied using a 527 nm wavelength 400 fs laser pulse containing 0.3-2.5 mJ laser energy focused in a large 500 x 700 {micro}m{sup 2} spot to create heated conditions of 0.2-1.8 x 10{sup 12} W cm{sup -2} intensity. The unique LLNL COMET compact tabletop soft x-ray laser source provided the necessary high photon flux, highly monoenergetic, picosecond pulse duration, and coherence for observing the evolution of changes in the valence band electronic structure of laser heated metals and semiconductors with picosecond time resolution. This work demonstrates the continuing development of a powerful new technique for probing reaction dynamics and changes of local order on surfaces on their fundamental timescales including phenomena such as non-thermal melting, chemical bond formation, intermediate reaction steps, and the existence of transient …
Date:
July 28, 2005
Creator:
Nelson, A J; Dunn, J; Widmann, K; Ao, T; Ping, Y; Hunter, J et al.
Object Type:
Article
System:
The UNT Digital Library
Advertising Device
Patent for Advertising Device
Date:
July 28, 1903
Creator:
Smith, John D.
Object Type:
Patent
System:
The Portal to Texas History
Afghanistan: Politics, Elections, and Government Performance
This report discusses the current political state of Afghanistan, as well as the Afghan government. This report also discusses Afghanistan's relationship with the United States, particularly U.S. efforts to urge President Hamid Karzai, to address corruption within the Afghan government. The report also includes discussion of election fraud and corruption in Afghanistan.
Date:
July 28, 2014
Creator:
Katzman, Kenneth
Object Type:
Report
System:
The UNT Digital Library
Afghanistan Reconstruction: Despite Some Progress, Deteriorating Security and Other Obstacles Continue to Threaten Achievement of U.S. Goals
A letter report issued by the Government Accountability Office with an abstract that begins "In October 2001, coalition forces forcibly removed the Taliban regime from Afghanistan, responding to their protection of al Qaeda terrorists who attacked the United States. Congress subsequently passed the Afghanistan Freedom Support Act of 2002 authorizing funds to help Afghanistan rebuild a stable, democratic society. The act directed GAO to monitor the implementation of U.S. humanitarian, development, and counternarcotics assistance. This report analyzes, for fiscal year 2004, (1) U.S. obligations and expenditures, (2) progress and results of assistance efforts, (3) assistance management and coordination, and (4) major obstacles that affected the achievement of U.S. goals."
Date:
July 28, 2005
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Africa Command: U.S. Strategic Interests and the Role of the U.S. Military in Africa
This report provides information on Africa Command's (AFRICOM) mission, structure, interagency coordination, and its basing and manpower requirements. The report also gives a broad overview of U.S. strategic interests in Africa and the role of U.S. military efforts on the continent as they pertain to the creation of Africa Command.
Date:
July 28, 2009
Creator:
Ploch, Lauren
Object Type:
Report
System:
The UNT Digital Library
Africa: U.S. Foreign Assistance Issues
The United States provides assistance to 47 African countries, and the United States Agency for International Development (USAID) has 23 missions in Africa. In recent years, U.S. assistance to Africa saw a major increase, especially in health-related programs. This report provides an overview of U.S. aid to Africa, including the strategic objectives that shape U.S. aid to Africa, information about specific aid programs and initiatives, and the Obama Administration's FY2011 foreign aid budget request.
Date:
July 28, 2006
Creator:
Dagne, Ted
Object Type:
Report
System:
The UNT Digital Library
Agricultural Biotechnology: Background, Regulation, and Policy Issues
This report discusses the ethical and political issues surrounding contemporary biotechnology. Driving the discussion are inventions such as genetically engineered (GE) crops, which have increased from 3.6 million acres to 143 million acres in the United States. The report also raises concerns about regulations and the adequacy of environmental assessments.
Date:
July 28, 2015
Creator:
Cowan, Tadlock
Object Type:
Report
System:
The UNT Digital Library
Air Force C-17 Aircraft Procurement: Background and Issues for Congress
This report provides background information on the C-17 Aircraft program, including previous appropriations, related programs, and issues for Congress. The primary issue for Congress in FY2010 is whether to procure additional C-17s. An additional issue is whether to pass legislation relating to the airlift aircraft force structure. Congress's decisions on these issues could affect DOD capabilities and funding requirements and the U.S. military aircraft industrial base.
Date:
July 28, 2009
Creator:
O'Rourke, Ronald
Object Type:
Report
System:
The UNT Digital Library
Aircraft Nuclear Propulsion Project Quarterly Progress Report For Period Ending June 10, 1955
The development of the reactor layout is continuing. New features that have been incorporated because of stress, fluid flow, or fabricability considerations include an elliptical fuel expansion tank, a rounded dome to enclose the top of the reactor, a newly designed sodium pump impeller, and other related items. Recently completed heat exchanger tests yielded consistent data from which a series of heat exchangers is being designed. The most promising of these will be chosen for the ART.
Date:
July 28, 1955
Creator:
Jordan, W. H.; Cromer, S. J.; Strough, R. I.; Miller, A. J. & Savolainen, A. W.
Object Type:
Report
System:
The UNT Digital Library
Altitude Performance of the Afterburner on the Iroquois Turbojet Engine. Coord. No. AF-P-6
"The performance and operational characteristics of two afterburner configurations for the Iroquois turbojet engine were evaluated in an altitude test chamber over a range of afterburner equivalence ratios at afterburner-inlet pressures from 733 to 3186 pounds per square foot absolute. These conditions correspond to an altitude range from 38,700 to 66,800 feet at a flight Mach number of 1.5. The only difference between the two afterburner configurations was in the pattern of afterburner fuel injection. At an afterburner-inlet pressure of approximately 3100 pounds per square foot absolute, corresponding to an altitude of 38,700 feet and a flight Mach number of 1.5, the combustion efficiency of both configurations reached peak values of 0.80 to 0.85 at equivalence ratios of 0.35 to 0.40" (p. 1).
Date:
July 28, 1958
Creator:
Groesbeck, Donald E. & Peters, Daniel J.
Object Type:
Report
System:
The UNT Digital Library
America COMPETES Reauthorization Act of 2010 (H.R. 5116) and the America COMPETES Act (P.L. 110-69): Selected Policy Issues
This report provides background information on P.L. 110-69 and H.R. 5116, includes information about related legislative activity in the 111th Congress, and analyzes four policy issues addressed by these measures: (1) STEM Education, (2) Federal Research Programs and Activities, (3) Broadening Participation, and (4) Funding. It also discusses selected policy concerns identified in the debate about U.S. competitiveness and describes how H.R. 5116 responds to those concerns.
Date:
July 28, 2010
Creator:
Gonzalez, Heather B.; Sargent, John F., Jr. & Moloney Figliola, Patricia
Object Type:
Report
System:
The UNT Digital Library
American Battle Monuments Commission: Improvements Needed in Internal Controls and Accounting Procedures - Fiscal Year 2010
Correspondence issued by the Government Accountability Office with an abstract that begins "On March 1, 2011, we issued our report expressing our opinion on the American Battle Monuments Commission's (the Commission) fiscal years 2010 and 2009 financial statements and our opinion on the Commission's internal control as of September 30, 2010. We also reported on the results of our tests of the Commission's compliance with selected provisions of laws and regulations during fiscal year 2010. During the fiscal year 2010 audit, we identified several internal control deficiencies that, while not material individually or in the aggregate to the Commission's financial statements, warrant management's attention. The purpose of this report is to present these deficiencies, provide recommendations to address these matters, and provide an update on the status of our prior years' recommendations."
Date:
July 28, 2011
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
The American Opportunity Tax Credit: Overview, Analysis, and Policy Options
The report discusses the american opportunity tax credit. It is categorized into four categories: (I) Current Law, (II) Legislative History, (III) Analysis and (IV) Policy options.
Date:
July 28, 2014
Creator:
Crandall-Hollick, Margo L.
Object Type:
Report
System:
The UNT Digital Library
Analysis and Annotation of Nucleic Acid Sequence
The aims of this project were to develop improved methods for computational genome annotation and to apply these methods to improve the annotation of genomic sequence data with a specific focus on human genome sequencing. The project resulted in a substantial body of published work. Notable contributions of this project were the identification of basecalling and lane tracking as error processes in genome sequencing and contributions to improved methods for these steps in genome sequencing. This technology improved the accuracy and throughput of genome sequence analysis. Probabilistic methods for physical map construction were developed. Improved methods for sequence alignment, alternative splicing analysis, promoter identification and NF kappa B response gene prediction were also developed.
Date:
July 28, 2004
Creator:
States, David J.
Object Type:
Report
System:
The UNT Digital Library
Analysis of Devonian Black Shales in Kentucky for Potential Carbon Dioxide Sequestration and Enhanced Natural Gas Production Quarterly Report: April-June 2003
CO{sub 2} emissions from the combustion of fossil fuels have been linked to global climate change. Proposed carbon management technologies include geologic sequestration of CO{sub 2}. A possible, but untested, sequestration strategy is to inject CO{sub 2} into organic-rich shales. Devonian black shales underlie approximately two-thirds of Kentucky and are thicker and deeper in the Illinois and Appalachian Basin portions of Kentucky than in central Kentucky. The Devonian black shales serve as both the source and trap for large quantities of natural gas; total gas in place for the shales in Kentucky is estimated to be between 63 and 112 trillion cubic feet. Most of this natural gas is adsorbed on clay and kerogen surfaces, analogous to methane storage in coal beds. In coals, it has been demonstrated that CO{sub 2} is preferentially adsorbed, displacing methane. Black shales may similarly desorb methane in the presence of CO{sub 2}. The concept that black, organic-rich Devonian shales could serve as a significant geologic sink for CO{sub 2} is the subject of current research. To accomplish this investigation, drill cuttings and cores were selected from the Kentucky Geological Survey Well Sample and Core Library. Methane and carbon dioxide adsorption analyses are being performed …
Date:
July 28, 2003
Creator:
Nuttall, Brandon C.
Object Type:
Report
System:
The UNT Digital Library
Analysis of F-Canyon Effluents During the Dissolution Cycle with a Fourier Transform Infrared Spectrometer/Multipath Cell
Air samples from F-Canyon effluents were collected at the F-Canyon stack and transported to a laboratory at the Savannah River Technology Center (SRTC) for analysis using a Fourier transform infrared spectrometer in conjunction with a multipath cell. Air samples were collected during the decladding and acid cuts of the dissolution of the irradiated aluminum-cladded slugs. The FTIR analyses of the air samples show the presence of NO2, NO, HNO2, N2O, SF6, and 85Kr during the dissolution cycle. The concentration time profiles of these effluents corresponded with expected release rates from the F-Canyon operations.
Date:
July 28, 1999
Creator:
Villa, E.
Object Type:
Report
System:
The UNT Digital Library