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Country
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ISOPERIMETRIC AND OTHER INEQUALITIES IN THE THEORY OF NEUTRON TRANSPORT, II
In a prevlous paper, some inequalities occurring in the one-veloclty theory of neutron transport with lsotropic scattering were derived. Some of the previous results are generalized to the case of linearly anisotropic scattering. (auth)
Date:
February 27, 1962
Creator:
Dresner, L.
System:
The UNT Digital Library
EFFECTIVE CUTOFF ENERGIES FOR B, Cd, Gd, AND Sm FILTERS
Effective energy cutoffs have been calculated on an IBM7090 computer for Cd, Gd, Sm, and B filters as functions of filter geometry, the ratio of Maxwellian to epithermal flux (assumed to be 1/E), the lower energy limit of the 1/E flux, the energy corresponding to the Maxwellian most probable (modal) velocity and filter thickness. The geometrical configurations were spherical (which on the assumptions madc is equivalent to a beam flux case), cylindrical and slab. By the use of two or three different filters (Cd and Gd and perhaps Sm) it should be possible to detect resonances in the thermal to cutoff energy regions, in addition to measuring resonance integrals and thermial cross sections of unknown nuclides. (auth)
Date:
July 27, 1962
Creator:
Stoughton, R.W. & Halperin, J.
System:
The UNT Digital Library
Modified horizontal solar collector for low temperature grain drying
The project consisted of constructing a horizontal solar collector with a small amount of rock storage integrated into the collector air stream. The collected energy was used to dry corn in a 6000 bushel low-temperature drying facility. The collector proved to be economically feasible to build and collected sufficient energy to show a reasonable return on the investment.
Date:
January 27, 1980
Creator:
unknown
System:
The UNT Digital Library
Fluidized bed incineration system for U. S. Department of Energy defense waste. Status report, July--December 1976. [Defense waste]
A fluidized-bed incineration facility has been designed for installation at the Rocky Flats Plant. The purpose is to develop and demonstrate the process for the combustion of transuranic waste. The unit capacity will be about 82 kg/hr of combustible waste. The combustion process will utilize in situ neutralization of acid gases generated in the process. The equipment design is based on data generated on a pilot scale unit and represents a scale-up factor of nine. Title II engineering is complete and construction work has begun.
Date:
March 27, 1978
Creator:
Richey, Lewis L.; Faccini, Peter T. & Feng, Pen K.
System:
The UNT Digital Library
Baseline design/economics for advanced Fischer-Tropsch technology
The objectives of the study are to: Develop a baseline design for indirect liquefaction using advanced Fischer-Tropsch (F-T) technology. Prepare the capital and operating costs for the baseline design. Develop a process flowsheet simulation (PFS) model. The baseline design, the economic analysis, and the computer model will be the major research planning tools that Pittsburgh Energy Technology Center will use to plan, guide, and evaluate its ongoing and future research and commercialization programs relating to indirect coal liquefaction for the manufacture of synthetic liquid fuels from coal.
Date:
April 27, 1992
Creator:
unknown
System:
The UNT Digital Library
Interim findings of programmatic options for a building design competition for energy conservation
The purpose of this report is to present various programmatic options for the Buildings and Community Systems (BCS) to use in utilizing a building design competition as a mechanism to promote the widescale adoption of energy conservation in new buildings design. The general program requirements were that: (1) the design competition focus on the multi-family low-rise residential market; (2) the design competition would result in the construction of a building or buildings under a Federally-assisted housing program; (3) the competition would be among competitors who are professional architects, designers, and/or developers; (4) the design competition would generate a high degree of public and professional awareness of conservation options in building design; and (5) the competition would be based on the use of a common standard of judgement (e.g., Btu's per square foot). The purpose of the initial phase of this study has been: (1) to assess the feasibility of developing a design competition that can meet the general requirements; (2) to identify potential program options for the competition; and (3) to develop a preliminary structural framework for it. This paper reports the study approach and the preliminary findings. (MCW)
Date:
February 27, 1978
Creator:
unknown
System:
The UNT Digital Library
Specifications and Fabrication Procedures for Type 3 Fuel Elements
Process and product requirements to be met in the fabrication of Type 3 fuel elements are presented. The fuel elements specified consist of thin plates of a dispersion of highly enriched UO/sub 2/ and ZrB/sub 2/ in a stainless steel matrix which is clad with stainless steel on all surfaces. Quality assurance provisions are discussed. Process and material specifications and packaging and packing for shipment are described. Sample calculations and drawings are included. (M.C.G.)
Date:
April 27, 1962
Creator:
Edgar, E. C. & Clayton, H. R.
System:
The UNT Digital Library
Temperature Coefficients of the Reactivity Measurement Facility
The temperature coefficient of the Reactivity Measurement Facility was found to be 49 plus or minus 1 mu k/ deg C (1 mu k = 10/sup -6/ DELTA k/k) in the range 15.4 to l7.8 deg C. The change in the net reactivity of a standard sample was --0.48 plus or minus 0.02, --0.66 plus or minus 0.03, and --0.78 plus or minus 0.02 mu k/ deg C in three measuring positions. These low values generally make temperature corrections insignificant. The above results are compared with previous determined values. This information developed in the RMF should be generally applicable to flux-trap-type reactors such as the Advanced Reactivity Measurement Facility (ARMF) and ARMF-ll, now under construction. RMF was dismantled in April 1962. (auth)
Date:
July 27, 1962
Creator:
Fast, E.
System:
The UNT Digital Library
Applications of Micellar Enzymology to Clean Coal Technology. [Laccase]
This project is designed to develop methods for pre-combustion coal remediation by implementing recent advances in enzyme biochemistry. The novel approach of this study is incorporation of hydrophilic oxidative enzymes in reverse micelles in an organic solvent. Enzymes from commercial sources or microbial extracts are being investigated for their capacity to remove organic sulfur from coal by oxidation of the sulfur groups, splitting of C-S bonds and loss of sulfur as sulfuric acid. Dibenzothiophene (DBT) and ethylphenylsulfide (EPS) are serving as models of organic sulfur-containing components of coal in initial studies.
Date:
April 27, 1990
Creator:
Walsh, C. T.
System:
The UNT Digital Library
Comparison of SNAP-50/SPUR System With MHD, Brayton, Boiling Reactor and Thermionic Systems
This report addresses the comparison of SNAP-50/SPUR System with MHD, Brayton, boiling reactor and thermionic systems.
Date:
April 27, 1965
Creator:
Allen, J. E.
System:
The UNT Digital Library
Procedure for the estimation of carbon oxidation rates in porous spent oil shale. [Based on free stream oxygen concentration and temperature]
None
Date:
September 27, 1974
Creator:
Tyler, A.L.
System:
The UNT Digital Library
Three-dimensional temperature history of a multipass, filled weldment. Part 1
A conceptual model is developed for the three-dimensional temperature history of a multipass, filled weldment. Property variations with temperature and phase change are included. A mathematical model and finite difference equations are derived from the conceptual model and a solution procedure for the equations is presented.
Date:
October 27, 1976
Creator:
Kleinschmidt, D. E.; Trinh, T. & Troiano, R.A.
System:
The UNT Digital Library
Changes in the Arctic: Background and Issues for Congress
This report provides an overview of Arctic-related issues for Congress and refers readers to more in-depth CRS reports on specific relevant topics.
Date:
February 27, 2014
Creator:
O'Rourke, Ronald
System:
The UNT Digital Library
Representatives and Senators: Trends in Member Characteristics Since 1945
This report provides profiles of Senators and Representatives in selected Congresses since 1945. It includes data based on Representatives and Senators serving on the first day of the 79th-113th Congresses for several demographic characteristics such as age (including the oldest and youngest Members of the House and Senate), sex, previous occupation, race and ethnicity, education, religion, and military service.
Date:
January 27, 2014
Creator:
Petersen, R. Eric; Brudnick, Ida A.; Garrett, R. Sam; Manning, Jennifer E.; Straus, Jacob R. & Wilhelm, Amber Hope
System:
The UNT Digital Library
Coast Guard Cutter Procurement: Background and Issues for Congress
This report provides background information and potential oversight issues for Congress on the Coast Guard's programs for procuring 8 National Security Cutters (NSCs), 25 Offshore Patrol Cutters (OPCs), and 58 Fast Response Cutters (FRCs).
Date:
February 27, 2014
Creator:
O'Rourke, Ronald
System:
The UNT Digital Library
Afghanistan: Politics, Elections, and Government Performance
This report discusses the current political state of Afghanistan, and the Afghan government. It 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.
Date:
February 27, 2014
Creator:
Katzman, Kenneth
System:
The UNT Digital Library
House Committee on Ethics: A Brief History of Its Evolution and Jurisdiction
This report examines the history and evolution of the House Committee on Ethics, including the committee's jurisdiction and investigative procedure. It does not deal with changes to federal or state criminal law or with criminal prosecutions of Members of Congress or with the specifics of disciplinary cases in the House.
Date:
November 27, 2013
Creator:
Straus, Jacob R.
System:
The UNT Digital Library
Legislative Options for Financing Water Infrastructure
This report addresses several options being considered by Congress to address the financing needs of local communities for wastewater and drinking water infrastructure projects and to decrease or close the gap between available funds and projected needs.
Date:
November 27, 2013
Creator:
Copeland, Claudia; Mallett, William J. & Maguire, Steven
System:
The UNT Digital Library
Science and Technology Issues in the 113th Congress
This report briefly outlines an array of science and technology policy issues that may come before the 113th Congress.
Date:
December 27, 2013
Creator:
Gottron, Frank
System:
The UNT Digital Library
The Renewable Fuel Standard: In Brief
This report provides a basic description of the Renewable Fuel Standard (RFS), including some of the widely discussed issues.
Date:
November 27, 2013
Creator:
Bracmort, Kelsi
System:
The UNT Digital Library
The Crisis in South Sudan
This report provides an overview of the recent humanitarian situation in South Sudan. The United States is the largest provider of bilateral foreign assistance to South Sudan and a major financial contributor to international peacekeeping efforts there.
Date:
December 27, 2013
Creator:
Ploch Blanchard, Lauren
System:
The UNT Digital Library
Crisis in the Central African Republic
This report provides background on the evolving political, security, and humanitarian crisis in the Central African Republic (CAR), which began when a fractious rebel coalition seized control of the central government in March 2013. The report also describes U.S. policy responses and analyzes possible issues for Congress, including oversight of U.S. humanitarian assistance and support for international stabilization efforts in CAR.
Date:
January 27, 2014
Creator:
Arieff, Alexis
System:
The UNT Digital Library
Navy Littoral Combat Ship (LCS) Program: Background and Issues for Congress
This report provides background information and potential issues for Congress on the Littoral Combat Ship (LCS), a relatively inexpensive Navy surface combatant equipped with modular "plug-and-fight" mission packages for countering mines, small boats, and diesel-electric submarines, particularly in littoral (i.e., near-shore) waters.
Date:
September 27, 2013
Creator:
O'Rourke, Ronald
System:
The UNT Digital Library
Department of Defense Purchase of Renewable Energy Credits Under the National Defense Authorization Act of 2012
Report that looks at the background of the National Defense Authorization Act for Fiscal Year 2012 (NDAA), the Department of Defense's (DOD) electrical use, and DOD electricity use versus state electricity use.
Date:
November 27, 2012
Creator:
Andrews, Anthony
System:
The UNT Digital Library