Collection
Office of Scientific & Technical Information Technical Reports
672
Congressional Research Service Reports
155
Government Accountability Office Reports
102
Texas Attorney General Opinions
54
Technical Report Archive and Image Library
41
Texas State Publications
40
Texas Patents
34
TRAIL Microcard Collection
17
National Advisory Committee for Aeronautics Collection
11
Texas Register
10
9 More
Serial/Series Title
Country
Decade
Month
Day
Language
1,099 Matching Results
Results open in a new window/tab.
Results:
1 - 24 of
1,099
next
Office of Waste Isolation progress report, December 1977
This document reports progress on the OWI's portion of the National Waste Terminal Storage (NWTS) program. It comprises project reports on work performed by organizations under subcontract to OWI, by DOE contractors, by OWI consultants, and by other federal agencies participating in the NWTS program. They are made under the headings technical projects, facility projects, planning and analysis, and regulatory affairs. (DLC)
Date:
January 31, 1976
Creator:
Zerby, C.D.
Object Type:
Report
System:
The UNT Digital Library
Kilowatt Isotope Power System: component report for the Ground Demonstration System Accumulator
The Model Number ORC1A3A01 System Accumulator for the Kilowatt Isotope Power System was expulsion tested and demonstrated to be in compliance with the requirements of Sundstrand Explusion Test Procedure, TP 400. Test requirements of TP 400 were extracted from the Kilowatt Isotope Power System, Ground Demonstration System Test Plan.
Date:
January 31, 1978
Creator:
Brainard, E.L.
Object Type:
Report
System:
The UNT Digital Library
Homogenization of arc-melted uranium-6 weight percent niobium alloy ingots
Microsegregation and macrosegregation in uranium-6 niobium arc-melted ingots were characterized by electron microprobe analysis. Homogenization studies determined that microsegregation can be eliminated by heat treating the alloy for six hours at 1100/sup 0/C. Extensive homogenization did not eliminate macrosegregation (banding) from the as-cast alloy, but a mathematical model describing banding and coring indicated that banding could possibly be eliminated by working prior to homogenization.
Date:
January 31, 1978
Creator:
Snyder, W. B., Jr.
Object Type:
Report
System:
The UNT Digital Library
Pathfinder Atomic Power Plant Analog Simulator.
The steady-state and dynamlc characterlstics of the Pathfinder systems were simulated on a dual-console Pace Analog Computer. The derivation of the system equations, the assumptions involved, their numerical evaluation, and their conversion to analog circuitry are described. The Pathfinder system is unique because of the internal nuclear superheater, and controlled, forced recirculation. In simulating this system the following major assumptions were maden the reactor is a boiling-water type; moderated and cooled with saturated, light water; pressurized between 400 and 800 psiai and has a neutron flux distribution that is spatially invariant. All the importanit non-linearities are retained, thus permitting accurate solutions of large system disturbances. The neutron kinetics equations, with their six groups of delayed neutrons, are simulated with power feedbacks through reactor pressure, steam flow, core inlet subcooling, and fuel- element temperature. Particular attention ls devoted to the accurate simulation of fuel-element heat transfer; the reactor pressure-control system, which operates the turbine inlet valves; and the effect of core inlet subcooling, sinee these were found to have pronounced effects on reactor performance. The transient temperatures at the superheater hot spot and exit are generated. Enough flexibility ss included, so that all important disturbanees possible in the actual plant can …
Date:
January 31, 1962
Creator:
Crimmins, D. H.; Mohr, D. & Stone, J. T.
Object Type:
Report
System:
The UNT Digital Library
Test and Evaluation of Alco/BLH Prototype Sodium-Heated Steam Generator: Final Report
A 30-Mwt prototype sodium-to-sodium intermediate heat exchanger and a 30-Mwt prototype sodium-heated steam generator were tested in combined operation in its Sodium Components Test Installation. This report contains the results of test and evaluation of the steam generator. During plant performance tests, performance degradation was observed, which resulted in the initiation of a diagnostic test series. This test series revealed that under certain operating conditions, the thermohydraulic characteristic of the steam generator changed either suddenly or gradually, resulting in overall performance degradation. A structural failure, requiring retirement of the unit, occurred before the diagnostic test series and analytical support effort were completed. This report describes the thermohydraulic and structural performance, including the structural failures, and related evaluation analyses of the Alco/BLH prototype steam generator performed prior to termination of the test and evaluation program. In addition, the report presents a post-test examination plan to obtain data that could possibly explain the cause of performance anomalies and structural failures experienced during testing.
Date:
January 31, 1971
Creator:
Kaplan, C. J.; Auge, L. J.; Cho, S. M.; Hanna, R. W.; Prevost, J. R.; Steger, N. A. et al.
Object Type:
Report
System:
The UNT Digital Library
Apparatus for simultaneously measuring electrical conductivity and oxygen fugacity
Electrical conductivity studies of silicates are useful in determining temperature vs depth in the earth. Realistic laboratory measurements of conduction mechanisms require that exact determinations of oxygen fugacity (fo{sub 2}) be made in the experimental environment. An apparatus is described that monitors system fo{sub 2} with a calcia-doped zirconia-oxygen cell while measuring electrical conductivity of iron-bearing silicates at high temperature (greater than 1000 K). The fo{sub 2} calculated thermodynamically from CO/CO{sub 2} mixing ratios agreed well with measurements made with the zirconia cell at 1473 K, except for fo{sub 2} greater than 10{sup -4} Pa, where, on a log{sub 10} scale, mixing-ratio errors were as large as +- 0.2. These errors are attributed to oxygen contamination in the CO{sub 2} and to mobile carbon deposits that formed in the apparatus.
Date:
January 31, 1978
Creator:
Netherton, R. & Duba, A.
Object Type:
Report
System:
The UNT Digital Library
Helium generation in fusion reactor materials. Technical progress report, April--September 1977
The near-term objectives of this program are to measure the spectrum-integrated helium generation rates and cross sections of a number of pure elements and alloys in several high-intensity neutron sources, and to develop and demonstrate neutron dosimetry procedures using some of these materials. To this end, four neutron irradiation experiments have now been run: one using accelerator-produced d-Be neutrons, two using the accelerator-produced d-T reaction, and one in the neutron field of a mixed-spectrum fission reactor. All of these irradiations have incorporated a large number of helium-generation materials.
Date:
January 31, 1978
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
District heating and cooling systems for communities through power plant retrofit distribution network. Phase 2. Final report, March 1, 1980-January 31, 1984. Volume IV
This volume contains the following: discussion of cost estimating methodology, detailed cost estimates of Hudson No. 2 retrofit, intermediate thermal plant (Kearny No. 12) and local heater plants; transmission and distribution cost estimate; landfill gas cost estimate; staged development scenarios; economic evaluation; fuel use impact; air quality impact; and alternatives to district heating.
Date:
January 31, 1984
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Assessment of underground coal gasification in bituminous coals: catalog of bituminous coals and site selection. Appendix A. National coal resource data system: Ecoal, Wcoal, and Bmalyt. Final report, Phase I. [Bituminous coal; by state; coal seam depth and thickness; identification]
Appendix A is a catalog of the bituminous coal in 29 states of the contiguous United States which contain identified bituminous coal resources.
Date:
January 31, 1982
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Process development for automated solar cell and module production. Task 4: automated array assembly. Quarterly report No. 5
Construction of an automated solar cell layup and interconnect system is now complete. This system incorporates a Unimate 2000 B industrial robot with an end effector consisting of a vacuum pick up and induction heating coil. The robot interfaces with a smart cell preparation station which correctly orients the cell, applies solder paste and forms and positions the correct lengths of interconnect lead. The system is controlled and monitored by a TRS-80 micro computer. The first operational tests of the fully integrated station have been run. These tests proved the soundness of the basic design concept but also pointed to areas in which modifications are necessary. These modifications are nearly complete and the improved parts are being integrated. Development of the controlling computer program is progressing to both reflect these changes and reduce operating time.
Date:
January 31, 1980
Creator:
Hagerty, J.J.
Object Type:
Report
System:
The UNT Digital Library
District heating and cooling systems for communities through power plant retrofit distribution network. Phase 2. Final report, 1 March 1980-31 January 1984. Volume VII. Appendix C
This volume contains: Hudson No. 2 Limited Retrofit Cost Estimates provided by Stone and Webster Engineering Corp. (SWEC); backup data and basis of estimate for SWEC Heater Plant and Gas Turbine Plant (Kearny No. 12) cost estimates; and Appendices - Analysis of Relevant Tax Laws.
Date:
January 31, 1984
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Assessment of underground coal gasification in bituminous coals: potential UCG products and markets. Final report, Phase I
The following conclusions were drawn from the study: (1) The US will continue to require new sources of energy fuels and substitutes for petrochemical feedstocks into the foreseeable future. Most of this requirement will be met using coal. However, the cost of mining, transporting, cleaning, and preparing coal, disposing of ash or slag and scrubbing stack gases continues to rise; particularly, in the Eastern US where the need is greatest. UCG avoids these pitfalls and, as such, should be considered a viable alternative to the mining of deeper coals. (2) Of the two possible product gases LBG and MBG, MBG is the most versatile. (3) The most logical use for UCG product in the Eastern US is to generate power on-site using a combined-cycle or co-generation system. Either low or medium Btu gas (LBG or MBG) can be used. (4) UCG should be an option whenever surface gasification is considered; particularly, in areas where deeper, higher sulfur coal is located. (5) There are environmental and social benefits to use of UCG over surface gasification in the Eastern US. (6) A site could be chosen almost anywhere in the Illinois and Ohio area where amenable UCG coal has been determined due …
Date:
January 31, 1982
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Laser-generated shock-wave experiments in metals above 1 TPa
Some initial experiments are described which form part of a new program aimed at significantly extending the range of high pressures and densities which may be explored in laboratory equation-of-state (EOS) experiments. These experiments will utilize high-energy lasers, such as those employed in the Laser Fusion Program at Lawrence Livermore Laboratory (LLL), to generate intense shock waves in materials of interest.
Date:
January 31, 1978
Creator:
Trainor, R. J.; Shaner, J. W.; Auerbach, J. M. & Phillion, D. W.
Object Type:
Article
System:
The UNT Digital Library
Riegel Textile Corporation, Ware Shoals cogeneration. Final technical report
Riegel signed a cooperative cost sharing agreement with the Department of Energy to design, purchase, install, and operate a new cogeneration system in which a new turbine/generator unit exhausts steam at 225/sup 0/PSIG. The background of Riegel's previous cogeneration experience is presented; this project is described; and problems experienced in getting the boiler on-line and the turbine/generator up to speed are summarized. The project cost, operating cost, savings, and return on investment are presented. (MHR)
Date:
January 31, 1984
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Heat pipes applied to flat-plate solar collectors. Annual progress report
None
Date:
January 31, 1975
Creator:
Bienert, W. B. & Wolf, D. A.
Object Type:
Report
System:
The UNT Digital Library
Feasibility Study of a New Mass Flow System. Final Report, June 1, 1960 to November 31, 1961
None
Date:
January 31, 1962
Creator:
Haffner, J. W.
Object Type:
Report
System:
The UNT Digital Library
An Analysis of STEM Education Funding at the NSF: Trends and Policy Discussion
This report analyzes National Science Foundation funding trends and selected closely-related STEM (science, technology, engineering, and math) education policy issues to provide fiscal and policy context. It concludes with an analysis of potential policy options.
Date:
January 31, 2014
Creator:
Gonzalez, Heather B.
Object Type:
Report
System:
The UNT Digital Library
Iran Sanctions
This report discusses the recent development regarding the negotiations with Iran about its nuclear program. It provides background information on Iranian nuclear program and debates the November 24 Joint Plan of Action Elements.
Date:
January 31, 2014
Creator:
Katzman, Kenneth
Object Type:
Report
System:
The UNT Digital Library
The Palestinians: Background and U.S. Relations
This report provides an overview of current issues in U.S.-Palestinian relations. It also contains an overview of Palestinian society and politics and descriptions of key Palestinian individuals and groups--chiefly the Palestine Liberation Organization (PLO), the Palestinian Authority (PA), Fatah, Hamas, and the Palestinian refugee population.
Date:
January 31, 2014
Creator:
Zanotti, Jim
Object Type:
Report
System:
The UNT Digital Library
National Institutes of Health Extramural Research Grants: Oversight of Cost Reimbursements to Universities
Correspondence issued by the Government Accountability Office with an abstract that begins "The Department of Health and Human Services' (HHS) National Institutes of Health (NIH) is the nation's leader in conducting and sponsoring biomedical research. More than 80 percent of NIH's budget, which totaled over $28 billion in fiscal year 2006, is used to support extramural research, which is primarily conducted at over 500 universities nationwide. NIH reimburses universities for direct costs that can be specifically attributed to research sponsored by NIH grants, including costs for labor and materials used solely to carry out the research. It also reimburses universities for indirect costs, which include various facility and administrative expenses incurred by the universities for the shared support of such research. To be reimbursed for direct and indirect costs, universities must properly identify and claim them in accordance with federal guidance. Because indirect costs cannot be specifically attributed to a particular research grant, they are charged via an indirect cost rate that is applied to the direct costs for each grant agreement. The oversight responsibilities of NIH's institutes and centers (IC) include the financial management of grants as well as ensuring that grantees comply with the terms of the grants. …
Date:
January 31, 2007
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Workforce Investment Act: Strategies Needed to Improve Certain Training Outcome Data
A letter report issued by the Government Accountability Office with an abstract that begins "Of the more than two million total participants in the Workforce Investment Act's (WIA) Adult and Dislocated Worker Programs, about 11 percent and 16 percent, respectively, received training in program year 2011, and about two-thirds of the training participants in each program attained a credential. Little is known, however, about how many participants got jobs related to their training. From program year 2006 through program year 2011, the percentages of training participants who earned a credential declined from about 74 percent to 58 percent for the Adult Program and from about 75 percent to 63 percent for the Dislocated Worker Program, according to data from the Department of Labor (DOL). Of those training participants who attained a credential in program year 2011, about 65 percent earned occupational credentials, such as a welding certificate, followed by lower percentages who earned occupational skill licenses and associate's degrees, among others. In contrast, GAO found training-related employment data unreliable primarily because a significant portion of the data was missing."
Date:
January 31, 2014
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
OFPP Followup to Federal Supply Schedule Recommendations
Correspondence issued by the General Accounting Office with an abstract that begins "This report is to bring the Office of Federal Procurement Policy's attention to two GAO recommendations concerning the acquisition of information technology services under the Federal Supply Schedule (FSS). In GAO's view, implementation of these recommendations has been delayed because of unnecessary coupling with other FSS issues."
Date:
January 31, 2003
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Nuclear Nonproliferation: DOE's International Radiological Threat Reduction Program Needs to Focus Future Efforts on Securing the Highest Priority Radiological Sources
A letter report issued by the Government Accountability Office with an abstract that begins "Following the terrorist attacks of September 11, 2001, U.S. and international experts raised concerns that unsecured radiological sources were vulnerable to theft and posed a significant security threat to the United States and the international community. Radioactive material is encapsulated or sealed in metal to prevent its dispersal and is commonly called a sealed radiological source. Sealed radiological sources are used worldwide for many legitimate purposes, such as medical, industrial, and agricultural applications. However, the total number of these sources in use worldwide is unknown because many countries do not systematically account for them. It is estimated that thousands of these sources have been lost, stolen, or abandoned--commonly referred to as orphan sources. If certain types of these sources were obtained by terrorists, they could be used to produce a simple and crude, but potentially dangerous, weapon--known as a radiological dispersion device, or dirty bomb. In 2001, a congressional report directed DOE to use a portion of its fiscal year 2002 supplemental appropriation to address the threat posed by dirty bombs. In response to the congressional requirement, the National Nuclear Security Administration (NNSA) established the Radiological …
Date:
January 31, 2007
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Oil and Gas: Interior Has Begun to Address Hiring and Retention Challenges but Needs to Do More
A letter report issued by the Government Accountability Office with an abstract that begins "The Department of the Interior (Interior) continues to face challenges hiring and retaining staff with key skills needed to manage and oversee oil and gas operations on federal leases. Interior officials noted two major factors that contribute to challenges in hiring and retaining staff: lower salaries and a slow hiring process compared with similar positions in industry. In response to GAO's survey, officials from a majority of the offices in the three Interior bureaus that manage oil and gas activities--the Bureau of Land Management (BLM), the Bureau of Ocean Energy Management (BOEM), and the Bureau of Safety and Environmental Enforcement (BSEE)--reported ongoing difficulties filling vacancies, particularly for petroleum engineers and geologists. Many of these officials also reported that retention is an ongoing concern as staff leave for positions in industry. Bureau of Labor Statistics data confirm a wide gap between industry and federal salaries for petroleum engineers and geologists. According to Office of Personnel Management (OPM) data, the fiscal year 2012 attrition rate for petroleum engineers at BLM was over 20 percent, or more than double the average federal attrition rate of 9.1 percent. However, the …
Date:
January 31, 2014
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library