310 Matching Results

Search Results

Results: 1 - 24 next
open access

WELDING AND BRAZING OF HIGH-TEMPERATURE RADIATORS AND HEAT EXCHANGERS

Description: Procedures were developed for fabricating highperformance radiators and heat exchangers for the Aircraft Nuclear Propulsion (ANP) Program. These components, which contain multitudes of tube-to-tube sheet and tube-to-fin joints, are similar in design to those under consideration for a variety of space vehicle applications. In order to ensure reliability of the tube-to-tube sheet joints, techniques producing welds of extremely high quality were used and back brazing of the welds with a suitable a… more
Date: February 20, 1962
Creator: Slaughter, G.M. & Patriarca, P.
Partner: UNT Libraries Government Documents Department
open access

Temporal perspective on acid deposition research

Description: This statement presented to the Subcommittee on Natural Resources of the US House of Representatives gives a definition of acid rain, presents new data on the regional and temporal nature of the problem, and discusses research needs. (ACR)
Date: February 20, 1980
Creator: Hendrey, George R.
Partner: UNT Libraries Government Documents Department
open access

Collector sealants and breathing. Final Report, 25 September 1978-31 December 1979

Description: The objectives of this program were: (1) to investigate the pertinent properties of a variety of possible sealants for solar collectors and identify the most promising candidates, and (2) to study the effect of breathing in flat-plate, thermal solar collector units. The study involved two types of sealants, Class PS which includes preformed seals or gaskets and Class SC which includes sealing compounds or caulks. It was the intent of the study to obtain data regarding initial properties of cand… more
Date: February 20, 1980
Creator: Mendelsohn, M A; Luck, R M; Yeoman, F A & Navish, Jr, F W
Partner: UNT Libraries Government Documents Department
open access

Development of marketable solar assisted heat pumps. Phase II. Summary report, technical results

Description: A water source heat pump has been designed that is capable of operating over the range from 40 to 110/sup 0/F entering water temperature and has a heating coefficient of performance greater than six in the upper portion of this range. A computerized heat pump balance program was written to allow the performance of either a water-to-water or a water-to-air heat pump to be predicted in either the heating or cooling mode. A detailed program description, flow charts, and sample outputs are appended… more
Date: February 20, 1981
Creator: Hundt, R. & Heard, S.
Partner: UNT Libraries Government Documents Department
open access

Simulation program for central helium liquefier

Description: The computer program described here analyzes the performance of Fermilab Central Helium Liquefier (CHL) and predicts the values of the plant thermodynamic variables at all process points in the plant. To simulate CHL, this program is modified from the prototype program which was developed by Hitachi Ltd. a couple of years ago. This program takes care of only the steady state simulation and takes account of the change of the turbine efficiency, the pressure drops and the UA values of the heat ex… more
Date: February 20, 1984
Creator: Kawamura, S.
Partner: UNT Libraries Government Documents Department
open access

Armenia, Azerbaijan, and Georgia: Political Developments and Implications for U.S. Interests

Description: This report discusses the history and political background of Armenia, Azerbaijan, and Georgia since their breakaway from the former Soviet Union at the end of 1991. It looks at key issues for the 112th Congress including economies, energy, regional politics, local crime, and terrorism.
Date: February 20, 2014
Creator: Nichol, Jim
Partner: UNT Libraries Government Documents Department
open access

Gangs in Central America

Description: This report describes the gang problem in Central America, discusses country approaches to deal with the gangs, and analyzes U.S. policy with respect to gangs in Central America.
Date: February 20, 2014
Creator: Seelke, Clare Ribando
Partner: UNT Libraries Government Documents Department
open access

PILT (Payments in Lieu of Taxes): Somewhat Simplified

Description: This report explains Payments in Lieu of Taxes (PILT), with an analysis of the five major factors affecting the calculation of a payment to a given county. It also describes the effects of certain legislative changes to PILT in 2009 and 2012.
Date: February 20, 2014
Creator: Corn, M. Lynne
Partner: UNT Libraries Government Documents Department
open access

U.S. Manufacturing in International Perspective

Description: This report contains a series of charts and tables that depict the position of manufacturing in the United States relative to other countries according to various metrics.
Date: February 20, 2014
Creator: Levinson, Marc
Partner: UNT Libraries Government Documents Department
open access

Employment for Veterans: Trends and Programs

Description: This report discusses veterans' employment trends and programs. The first section presents data on veterans' employment outcomes, identifying recent trends, and discussing issues to consider when interpreting veterans' employment data. The following sections present brief discussions of existing programs that provide employment-related services to veterans. These services are divided into (1) general programs that are broadly available to veterans, (2) programs that target veterans with service… more
Date: February 20, 2014
Creator: Collins, Benjamin; Dilger, Robert Jay; Dortch, Cassandria; Kapp, Lawrence; Lowry, Sean & Perl, Libby
Partner: UNT Libraries Government Documents Department
open access

Japan-U.S. Relations: Issues for Congress

Description: This report discusses issues regarding U.S.-Japan economic relations, since the economic condition of each nation can affect the world economy and a U.S.-Japan bilateral economic relationship could influence economic conditions in other countries. U.S. and Japanese leaders have several options on how to manage their relationship, including stronger reliance on the World Trade Organization; special bilateral negotiating frameworks and agreements; or a free trade agreement.
Date: February 20, 2014
Creator: Chanlett-Avery, Emma; Cooper, William H.; Manyin, Mark E. & Rinehart, Ian E.
Partner: UNT Libraries Government Documents Department
open access

EPA Regulation of Greenhouse Gases: Congressional Responses and Options

Description: This report discusses elements of the greenhouse gas (GHG) controversy, providing background on stationary sources of GHG pollution and identifying options Congress has at its disposal to address GHG issues, including: (1) resolutions of disapproval under the Congressional Review Act; (2) freestanding legislation; (3) the use of appropriations bills as a vehicle to influence EPA activity; and (4) amendments to the Clean Air Act, including legislation to establish a new GHG control regime.
Date: February 20, 2014
Creator: McCarthy, James E.
Partner: UNT Libraries Government Documents Department
open access

State Children's Health Insurance Program: CMS Should Improve Efforts to Assess whether SCHIP Is Substituting for Private Insurance

Description: A letter report issued by the Government Accountability Office with an abstract that begins "Congress created the State Children's Health Insurance Program (SCHIP) to reduce the number of uninsured children in low-income families that do not qualify for Medicaid. States have flexibility in structuring their SCHIP programs, and their income eligibility limits vary. Concerns have been raised that individuals might substitute SCHIP for private health insurance--known as crowd-out. GAO was asked to… more
Date: February 20, 2009
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
open access

Defense Management: Actions Needed to Address Stakeholder Concerns, Improve Interagency Collaboration, and Determine Full Costs Associated with the U.S. Africa Command

Description: A letter report issued by the Government Accountability Office with an abstract that begins "In February 2007, the President directed the Department of Defense (DOD) to establish the U.S. Africa Command (AFRICOM) to help strengthen U.S. security cooperation with African nations and bring peace and stability to the continent. For this review, GAO assessed DOD's (1) efforts to establish the command and communicate its mission, (2) progress in integrating personnel from other U.S. government agenc… more
Date: February 20, 2009
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
open access

Defense Management: DOD Needs to Increase Attention on Fuel Demand Management at Forward-Deployed Locations

Description: A letter report issued by the Government Accountability Office with an abstract that begins "The Department of Defense (DOD) relies heavily on petroleum-based fuel to sustain its forward-deployed locations--particularly those that are not connected to local power grids. While weapon platforms require large amounts of fuel, DOD reports that the single largest battlefield fuel consumer is generators, which provide power for base support activities such as cooling, heating, and lighting. Transport… more
Date: February 20, 2009
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
open access

Nonprescription Drugs: Considerations Regarding a Behind-the-Counter Drug Class

Description: A letter report issued by the Government Accountability Office with an abstract that begins "In the United States, most nonprescription drugs are available over-the-counter (OTC) in pharmacies and other stores. Experts have suggested that drug availability could be increased by establishing an additional class of nonprescription drugs that would be held behind the counter (BTC) but would require the intervention of a pharmacist before being dispensed; a similar class of drugs exists in many oth… more
Date: February 20, 2009
Creator: United States. Government Accountability Office.
Partner: UNT Libraries Government Documents Department
open access

Food Safety: Overview of Federal and State Expenditures

Description: A letter report issued by the General Accounting Office with an abstract that begins "The Food and Drug Administration (FDA), the Food Safety and Inspection Service (FSIS), and the state agriculture and health departments spent about $1.3 billion in fiscal year 1999. FSIS and FDA spent about $1 billion, and the states reported spending about $300 million. The amounts and proportions of food safety expenditures for fiscal year 1998 were similar. Regarding the $1 billion in federal funds spent in… more
Date: February 20, 2001
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department
open access

Equation of State and Heat Content of Uranium

Description: Report issued by the APDA regarting studies conducted on the state of uranium at different temperature and pressure. Calculations are presented for the differing pressures of uranium; it includes tables.
Date: February 20, 1957
Creator: Brout, Robert H.
Partner: UNT Libraries Government Documents Department
open access

Thermal Bowing of Core Subassemblies

Description: Report issued by the APDA over studies conducted on thermal bowing of core sub-assemblies at the Enrico Fermi Atomic Power Plant. As stated in the introduction and summary, "the present report deals with this problem in the design of the Enrico Fermi Reactor and with the method which has been adopted to avoid a positive temperature coefficient of reactivity" (p. 1). This report includes illustrations, and photographs.
Date: February 20, 1959
Creator: De Stordeur, Arnold
Partner: UNT Libraries Government Documents Department
open access

Fluor Hanford, Inc. Groundwater and Technical Integration Support (Master Project) Quality Assurance Management Plan

Description: The scope of the Fluor Hanford, Inc. Groundwater and Technical Integration Support (Master Project) is to provide technical and integration support to Fluor Hanford, Inc., including operable unit investigations at 300-FF-5 and other groundwater operable units, strategic integration, technical integration and assessments, remediation decision support, and science and technology. This Quality Assurance Management Plan provides the quality assurance requirements and processes that will be followed… more
Date: February 20, 2008
Creator: Fix, N. J.
Partner: UNT Libraries Government Documents Department
open access

FY 2007 Miniature Spherical Retroreflectors Final Report

Description: Miniature spherical retroreflectors, less than 8 millimeters in diameter, are currently being developed to enhance remote optical detection of nuclear proliferation activities. These retroreflecting spheres resemble small, sand-colored marbles that have the unique optical property of providing a strong reflection directly back to the source (i.e., retroreflecting) when illuminated with a laser. The addition of specific coatings, sensitive to specific chemicals or radioactive decay in the enviro… more
Date: February 20, 2008
Creator: Anheier, Norman C.; Bernacki, Bruce E. & Krishnaswami, Kannan
Partner: UNT Libraries Government Documents Department
open access

Nevada Test Site-Directed Research and Development, FY 2007 Report

Description: The Nevada Test Site-Directed Research and Development (SDRD) program completed a very successful year of research and development activities in FY 2007. Twenty-nine new projects were selected for funding this year, and eight projects started in FY 2006 were brought to conclusion. The total funds expended by the SDRD program were $5.67 million, for an average per-project cost of $153 thousand. An external audit conducted in September 2007 verified that appropriate accounting practices were appl… more
Date: February 20, 2008
Creator: Wil Lewis, editor
Partner: UNT Libraries Government Documents Department
open access

DOE Award No. DE-FC36-03GO13108 Novel Non-Precious Metal Catalysts for PEMFC: Catalyst Selection Through Molecular Modeling and Durability Studies Final Report (September 2003 – October 2008)

Description: The objective of this project is to develop novel non-precious metal electrocatalysts for oxygen reduction reaction (ORR), and demonstrate the potential of the catalysts to perform at least as good as conventional Pt catalysts currently in use in polymer electrolyte membrane fuel cell (PEMFC) with a cost at least 50 % less than a target of 0.2 g (Pt loading)/peak kW and with durability > 2,000 h operation with less than 10 % power degradation. A novel nitrogen-modified carbon-based catalyst was… more
Date: February 20, 2009
Creator: Popov, Branko N.
Partner: UNT Libraries Government Documents Department
open access

EFFECT OF UNBROKEN LIGAMENTS ON STRESS CORROSION CRACKING BEHAVIOR OF ALLOY 82H WELDS

Description: Previously reported stress corrosion cracking (SCC) rates for Alloy 82H gas-tungsten-arc welds tested in 360 C water showed tremendous variability. The excessive data scatter was attributed to the variations in microstructure, mechanical properties and residual stresses that are common in welds. In the current study, however, re-evaluation of the SCC data revealed that the large data scatter was an anomaly due to erroneous crack growth rates inferred from crack mouth opening displacement (CMOD)… more
Date: February 20, 2003
Creator: Mills, W.J. and Brown, C.M.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen