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Office of Scientific & Technical Information Technical Reports
1,287
Congressional Research Service Reports
744
Defense Base Closure and Realignment Commission
538
Government Accountability Office Reports
247
Texas Attorney General Opinions
44
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33
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17
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11
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Final Technical Report for USDOE Grant No. DE-FG02-96ER14675 Supermolecular Photosynthetic Arrays: Construction, Characterization, Exploration and Utilization
Biological processes provide paradigms for the development of solar energy devices of practical utility. In nature, the light harvesting -complexes (LHCs) are not chemically active. However, with unnatural chemical oxidation by potassium ferricyanide, cation free radicals of bacteriochlorophyll (BChl) can be formed in the light harvesting complex 1 (LH1) of Rhodobacter sphaeroides. Based on EPR studies, the site of the BChl{sup +} cations move rather freely about the LH1 complex as in a molecular wire. These molecular wires function in the frozen, solid state. This work seeks to understand better how nature controls electron transfer in some of its molecular wires. To investigate the nature of electron-hole transfer we have e.onducted both electron paramagnetic resonance (EPR) and electron nuclear double resonance (ENDOR) experiments on oxidized LH1 complexes. Progress has been achieved in two main areas: EPR studies of the role of ferricyanide in the molecular wire nature of oxidized LH1; and ENDOR studies of oxidized LH1 at 80K.
Date:
December 13, 2009
Creator:
Norris, James
Object Type:
Report
System:
The UNT Digital Library
The Full Function Test Explosive Generator
We have conducted three tests of a new pulsed power device called the Full Function Test (FFT). These tests represented the culmination of an effort to establish a high energy pulsed power capability based on high explosive pulsed power (HEPP) technology. This involved an extensive computational modeling, engineering, fabrication, and fielding effort. The experiments were highly successful and a new US record for magnetic energy was obtained.
Date:
December 13, 2009
Creator:
Reisman, D. B.; Javedani, J. B.; Griffith, L. V.; Ellsworth, G. F.; Kuklo, R. M.; Goerz, D. A. et al.
Object Type:
Article
System:
The UNT Digital Library
2010 Census: Census Bureau Has Made Progress on Schedule and Operational Control Tools, but Needs to Prioritize Remaining System Requirements
A letter report issued by the Government Accountability Office with an abstract that begins "To carry out the decennial census, the U.S. Census Bureau (Bureau) conducts a sequence of thousands of activities and numerous operations. As requested, The Government Accountability Office (GAO) examined (1) the Bureau's use of scheduling tools to maintain and monitor progress and (2) the status of two systems key to field data collection: the control system the Bureau will use to manage the work flow for paper-based operations, including nonresponse follow-up, and the system used to manage quality control of two major field operations. GAO applied schedule analysis tools; reviewed Bureau evaluations, planning documents, and other documents on work flow management; and interviewed Bureau officials."
Date:
November 13, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Colombia: Issues for Congress
This report provides an overview of recent political developments in Colombia, including the administration of President Uribe (2002-2010), continuing into the election of President Juan Manuel Santos. It discusses the political issues including Colombia's longstanding conflict with internal armed groups and ongoing challenges such as human rights, demobilization and displacement, drug trends, and Colombia's regional relations.
Date:
November 13, 2009
Creator:
Beittel, June S.
Object Type:
Report
System:
The UNT Digital Library
Defense Infrastructure: Guam Needs Timely Information from DOD to Meet Challenges in Planning and Financing Off-Base Projects and Programs to Support a Larger Military Presence
Correspondence issued by the Government Accountability Office with an abstract that begins "The Department of Defense's (DOD) plans to increase the U.S. military presence on Guam are expected to increase the island's current military population by about two and a half times by 2020. If implemented as planned, this realignment would increase the military population on Guam from about 15,000 in 2009 to about 29,000 in 2014, and to more than 39,000 by 2020, which will increase the current island population of 178,430 by about 14 percent over those years. The government of Guam established the Civilian-Military Task Force in April 2006 to identify and develop cost estimates for potential nondefense projects and programs needed to support the larger military presence. To determine the processes used by the government of Guam to develop cost estimates for off-base projects and programs to support a larger military and civilian population resulting from the military buildup, the Government Accountability Office (GAO) obtained and analyzed studies and assessments used by the government of Guam to develop the cost estimates. GAO also examined the government of Guam's fiscal year 2010 budget request. GAO conducted this performance audit from March 2009 through November 2009 in accordance …
Date:
November 13, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Fiscal Year 2009 Performance and Accountability Report
Other written product issued by the Government Accountability Office with an abstract that begins "Presented is GAO's Performance and Accountability Report for fiscal year 2009. In the spirit of the Government Performance and Results Act, this annual report informs the Congress and the American people about what we have achieved on their behalf. The financial information and the data measuring GAO's performance contained in this report are complete and reliable."
Date:
November 13, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
THE HIGH TEMPERATURE CHEMICAL REACTIVITY OF LI2O
The ultimate purpose of this study was to investigate the use of a Li-Ca mixture for direct reduction of actinide oxides to actinide metals at temperatures below 1500 C. For such a process to be successful, the products of the reduction reaction, actinide metals, Li{sub 2}O, and CaO, must all be liquid at the reaction temperature so the resulting actinide metal can coalesce and be recovered as a monolith. Since the established melting temperature of Li{sub 2}O is in the range 1427-1700 C and the melting temperature of CaO is 2654 C, the Li{sub 2}O-CaO (lithium oxidecalcium oxide) pseudo-binary system was investigated in an attempt to identify the presence of low-melting eutectic compositions. The results of our investigation indicate that there is no evidence of ternary Li-Ca-O phases or solutions melting below 1200 C. In the 1200-1500 C range utilizing MgO crucibles, there is some evidence for the formation of a ternary phase; however, it was not possible to determine the phase composition. The results of experiments performed with ZrO{sub 2} crucibles in the same temperature range did not show the formation of the possible ternary phase seen in the earlier experiment involving MgO crucibles, so it was not possible …
Date:
November 13, 2009
Creator:
Kessinger, G. & Missimer, D.
Object Type:
Article
System:
The UNT Digital Library
Military and Veterans' Benefits: Analysis of VA Compensation Levels for Survivors of Veterans and Servicemembers
A letter report issued by the Government Accountability Office with an abstract that begins "The Dependency and Indemnity Compensation (DIC) program provides monthly payments to the survivors of those who died as a result of a service-connected disability or while on active duty in the military. In fiscal year 2008, the Department of Veterans Affairs (VA) paid over $4.7 billion to about 354,000 survivors, replacing a portion of income lost with the death of the veteran or servicemember. The Veterans' Benefits Improvement Act of 2008 directed the Government Accountability Office (GAO) to study the DIC program and the levels of payments it provides. This report addresses (1) the extent to which DIC replaces VA disability compensation or active duty military pay lost due to the death of a veteran or servicemember, and (2) how DIC benefits compare to benefits for survivors of civilian federal employees. GAO obtained and analyzed data on DIC payments, VA disability compensation, and military pay rates. GAO also obtained information on survivor benefits under federal employee retirement and workers' compensation programs. GAO did not include in its analysis other sources of income survivors may receive, such as Social Security, private pensions, and life insurance. Lastly, GAO …
Date:
November 13, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Military Base Realignments and Closures: Estimated Costs Have Increased While Savings Estimates Have Decreased Since Fiscal Year 2009
Correspondence issued by the Government Accountability Office with an abstract that begins "The Department of Defense's (DOD) cost estimates to implement recommendations from the most recent Base Realignment and Closure (BRAC) round have steadily increased each budget year since 2005. This BRAC round is the fifth such round undertaken by DOD since 1988 and, by our assessment, it is the biggest, most complex, and costliest BRAC round ever. With this round, DOD plans to execute hundreds of BRAC actions affecting over 800 defense locations and relocate over 123,000 personnel. Before it can realize savings from BRAC, DOD must first invest billions of dollars in facility construction, renovation, and other up-front expenses. To implement BRAC 2005, DOD plans to spend nearly $35 billion--an unprecedented amount, given that it has spent only about $25 billion to implement the four previous BRAC rounds combined."
Date:
November 13, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
NEPTUNIUM IV AND V SORPTIN TO END-MEMBER SUBSURFACE SEDIMENTS TO THE SAVANNAH RIVER SITE
Migration of Np through the subsurface is expected to be primarily controlled by sorption to sediments. Therefore, understanding and quantifying Np sorption to sediments and sediments from the Savannah River Site (SRS) is vital to ensure safe disposal of Np bearing wastes. In this work, Np sorption to two sediments representing the geological extremes with respect to sorption properties expected in the SRS subsurface environment (named 'subsurface sandy sediment' and 'subsurface clayey sediment') was examined under a variety of conditions. First a series of baseline sorption tests at pH 5.5 under an oxic atmosphere was performed to understand Np sorption under typical subsurface conditions. These experiments indicated that the baseline K{sub d} values for the subsurface sandy and subsurface clayey sediments are 4.26 {+-} 0.24 L kg{sup -1} and 9.05 {+-} 0.61 L kg{sup -1}, respectively. These Np K{sub d} values of SRS sediments are the first to be reported since Sheppard et al. (1979). The previous values were 0.25 and 0.16 L kg{sup -1} for a low pH sandy sediment. To examine a possible range of K{sub d} values under various environmental scenarios, the effects of natural organic matter (NOM, also a surrogate for cellulose degradation products), the presence …
Date:
November 13, 2009
Creator:
Kaplan, D.
Object Type:
Report
System:
The UNT Digital Library
Net Operating Losses: Proposed Extension of Carryback Period
This report explains the current law regarding the tax treatment of net operating losses (NOLs). In addition, this report highlights a number of policy considerations relating to the extension of the NOL carryback period.
Date:
November 13, 2009
Creator:
Keightley, Mark P.
Object Type:
Report
System:
The UNT Digital Library
Patent “Evergreening”: Issues in Innovation and Competition
None
Date:
November 13, 2009
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Preliminary simulations of planned experiments to study the impact of trace gases on the capacity of the Weyburn-Midale field to store carbon dioxide
The CO{sub 2} stream injecting into the Weyburn-Midale field can be generally classified as a reducing stream with residual H{sub 2}S and low-molecular weight hydrocarbons. The composition of the CO{sub 2} gas stream from the Dakota Gasification Company is reported to be 95% CO{sub 2}, 4% hydrocarbons, and 1% H{sub 2}S by volume (Huxley 2006). In addition to the H{sub 2}S introduced at the injection wells, significant concentrations of H{sub 2}S are thought to have been produced in-situ by sulfate reducing bacteria from previous water floods for enhanced oil production. Produced gas compositions range in H{sub 2}S concentrations from 1 to 6 volume percent. The produced gas, including the trace impurities, is re-injected into the field. Although there is no evidence for inorganic reduction of SO{sub 4}{sup 2-} to H{sub 2}S at the Weyburn-Midale field, Sitchler and Kazuba (2009) suggest that SO{sub 4}{sup 2-} can be inorganically reduced to elemental sulfur in highly reducing environments based on a natural analog study of the Madison Formation in Wyoming. They propose that elevated concentrations of CO{sub 2} dissolve anhydrite to produce the sulfate that is then reduced. Oxidizing CO{sub 2} streams with residual O{sub 2} and SO{sub 2} typical of streams captured …
Date:
November 13, 2009
Creator:
Carroll, S & Hao, Y
Object Type:
Report
System:
The UNT Digital Library
Program for the Inspection of Nickel Alloy Components Report from the Program’s Steering Committee: Inspection of Bottom-Mounted Instrumentation Nozzles Round Robin
The U.S. Nuclear Regulatory Commission (NRC) executed agreements with organizations in Japan, Sweden, South Korea, Finland, and the United States to establish the Program for the Inspection of Nickel Alloy Components (PINC).
Date:
November 13, 2009
Creator:
Cumblidge, Stephen E.; Heasler, Patrick G.; Doctor, Steven R. & Taylor, Theodore T.
Object Type:
Report
System:
The UNT Digital Library
RESULTS FOR THE THIRD QUARTER 2009 TANK 50 WAC SLURRY SAMPLE: CHEMICAL AND RADIONUCLIDE CONTAMINANT RESULTS
This report details the chemical and radionuclide contaminant results for the characterization of the 2009 Third Quarter sampling of Tank 50 for the Saltstone Waste Acceptance Criteria (WAC). Information from this characterization will be used by Liquid Waste Operations (LWO) to support the transfer of low-level aqueous waste from Tank 50 to the Salt Feed Tank in the Saltstone Facility in Z-Area, where the waste will be immobilized. This information is also used to update the Tank 50 Waste Characterization System. Recently, a review of the radionuclide inventory in Saltstone Vaults 1 and 4 identified several additional radionuclides, not currently in the WAC, which require quantification ({sup 40}K, {sup 108m}Ag, {sup 133}Ba, {sup 207}Bi, {sup 227}Ac, {sup 228}Ra, {sup 228}Th, {sup 231}Pa, {sup 247}Cm, {sup 249}Cf, {sup 251}Cf). In addition, several of the radionuclides previously reported with minimum detection limits below the requirements listed in the WAC required analysis with reduced detection limits to support future inventory reporting requirements ({sup 22}Na, {sup 26}Al, {sup 59}Ni, {sup 94}Nb, {sup 106}Ru, {sup 144}Ce, {sup 152}Eu, {sup 155}Eu, {sup 226}Ra). This added scope was formally requested in a revision to the standing Technical Task Request for CY2009 Saltstone support and is further discussed …
Date:
November 13, 2009
Creator:
Reigel, M.; Diprete, C. & Bibler, N.
Object Type:
Report
System:
The UNT Digital Library
Sea-Based Ballistic Missile Defense-- Background and Issues for Congress
This report discusses the changing role and finance of sea-based systems in U.S. ballistic missile defense (BMD). Decisions that Congress reaches on this issue could affect U.S. BMD capabilities and funding requirements; the size, capabilities, and operational patterns of the Navy and the other services; and the shipbuilding industrial base.
Date:
November 13, 2009
Creator:
O'Rourke, Ronald
Object Type:
Report
System:
The UNT Digital Library
Texas Register, Volume 34, Number 46, Pages 7925-8080, November 13, 2009
A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date:
November 13, 2009
Creator:
Texas. Secretary of State.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
U.S. Marshals: Qualifications and Comparison of Demographic Characteristics to Their Counterparts in Selected Federal Law Enforcement Agencies
Correspondence issued by the Government Accountability Office with an abstract that begins "Federal law does not mandate specific qualifications for individuals appointed as U.S. Marshals. However, Section 505 of the USA PATRIOT Improvement and Reauthorization Act of 2005 states that U.S. Marshals should possess certain minimum characteristics in order to serve. The suggested characteristics are (1) a minimum of 4 years of command-level law enforcement management duties, including personnel, budget, and accountable property issues, in a police department, sheriff's office, or federal law enforcement agency; (2) experience in coordinating with other law enforcement agencies, particularly at the state and local levels; (3) college-level academic experience; and (4) experience in or with county, state, and federal court systems or experience with protection of court personnel, jurors, and witnesses. In contrast to the appointment process for U.S. Marshals, the senior field supervisors of other federal law enforcement agencies with comparable duties and responsibilities are selected under competitive, merit-based promotion criteria outlined in Title 5 of the U.S. Code. These individuals are required to apply and compete for these positions and meet any identified minimum standards. Minimum qualifications used to select senior field supervisors at some of the federal law enforcement agencies vary, …
Date:
November 13, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
U.S. Trade Deficit and the Impact of Changing Oil Prices
This report provides an estimate of the initial impact of the changing oil prices on the nation's merchandise trade balance.
Date:
November 13, 2009
Creator:
Jackson, James K.
Object Type:
Report
System:
The UNT Digital Library
U.S. Trade Deficit and the Impact of Changing Oil Prices
None
Date:
November 13, 2009
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Upper Limits on the Number of Small Bodies in Sedna-Like Orbits by the TAOS Project
We present the results of a search for occultation events by objects at distances between 100 and 1000 AU in lightcurves from the Taiwanese-American Occultation Survey (TAOS). We searched for consecutive, shallow flux reductions in the stellar lightcurves obtained by our survey between 7 February 2005 and 31 December 2006 with a total of {approx} 4.5 x 10{sup 9} three-telescope simultaneous photometric measurements. No events were detected, allowing us to set upper limits on the number density as a function of size and distance of objects in Sedna-like orbits, using simple models.
Date:
November 13, 2009
Creator:
Wang, J.; Lehner, M. J.; Zhang, Z.; Bianco, F. B.; Alcock, C.; Chen, W. et al.
Object Type:
Article
System:
The UNT Digital Library
Computational fluid dynamics modeling of two-phase flow in a BWR fuel assembly. Final CRADA Report.
A direct numerical simulation capability for two-phase flows with heat transfer in complex geometries can considerably reduce the hardware development cycle, facilitate the optimization and reduce the costs of testing of various industrial facilities, such as nuclear power plants, steam generators, steam condensers, liquid cooling systems, heat exchangers, distillers, and boilers. Specifically, the phenomena occurring in a two-phase coolant flow in a BWR (Boiling Water Reactor) fuel assembly include coolant phase changes and multiple flow regimes which directly influence the coolant interaction with fuel assembly and, ultimately, the reactor performance. Traditionally, the best analysis tools for this purpose of two-phase flow phenomena inside the BWR fuel assembly have been the sub-channel codes. However, the resolution of these codes is too coarse for analyzing the detailed intra-assembly flow patterns, such as flow around a spacer element. Advanced CFD (Computational Fluid Dynamics) codes provide a potential for detailed 3D simulations of coolant flow inside a fuel assembly, including flow around a spacer element using more fundamental physical models of flow regimes and phase interactions than sub-channel codes. Such models can extend the code applicability to a wider range of situations, which is highly important for increasing the efficiency and to prevent accidents.
Date:
October 13, 2009
Creator:
Tentner, A.
Object Type:
Report
System:
The UNT Digital Library
Final report for grant DE-FG02-06ER64182: "Evaluation and Improvement of the Cloud Resolving Model Component of the Multi-Scale Modeling Framework"
The overall aim of the larger collaborative effort of which this project was part was to evaluate and improve the cloud system resolving model (CSRM) at the heart of the multi-scale modeling framework (MMF). Our task at the University of Colorado our effort was to develop methods that would let us evaluate the performance of cloud-scale models at the ARM SGP site using ARM remote sensing products.
Date:
October 13, 2009
Creator:
Pincus, Robert
Object Type:
Report
System:
The UNT Digital Library
Texas Attorney General Opinion: GA-0740
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Greg Abbott, regarding a legal question submitted for clarification; Authority fo limit the frequency of property appraisals by an appraisal district to once every three years (RQ-0792-GA)
Date:
October 13, 2009
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History