Search Results

Efforts to Address Seasonal Agricultural Import Competition in the NAFTA Renegotiation

Description: This report discusses a proposal by the U.S. in the North American Free Trade Agreement (NAFTA) renegotiations that would allow U.S. agricultural producers of certain fruits and vegetables to more easily file an injury claim regarding imports from Mexico. It includes details regarding the proposal, Mexican produce imports statistics, and arguments for and against the proposal.
Date: December 7, 2017
Creator: Johnson, Renée
Partner: UNT Libraries Government Documents Department

Financial Regulation: Fiscal Year 2018 Appropriations and the Financial CHOICE Act (H.R. 10)

Description: This report discusses the Financial CHOICE Act (H.R. 10) and the FY 2018 Financial Services and General Government (FSGG) Appropriations Bill (H.R. 3354, Division D). The Senate Appropriations Committee released an FY2018 FSGG chairmen's mark on November 20, 2017, but further action has yet to occur on the bill. Much of the federal government, including agencies covered by FSGG appropriations, has been operating for the first part of FY2018 under a continuing resolution effective through December 8, 2017.
Date: December 7, 2017
Creator: Webel, Baird & Labonte, Marc
Partner: UNT Libraries Government Documents Department

Lebanon

Description: This report provides an overview of Lebanon and current issues of U.S. interest. It provides background information, analyzes recent developments and key policy debates, and tracks legislation, U.S. assistance, and recent congressional action. The report includes information regarding Prime Minister Saad Hariri's resignation and subsequent reinstatement in November 2017.
Date: December 7, 2017
Creator: Humud, Carla E.
Partner: UNT Libraries Government Documents Department

Computer automation for chemistry instruments. Final report, February 1, 1980-January 31, 1981

Description: The work performed consisted of the following: (1) development of computer aided design software for polynomial filters and Butterworth-Chebychev filter design; (2) development of algorithms for resolving peaks in spectroscopic data; and (3) interaction with LLL personnel to develop a structure for automation of surface chemistry spectroscopy. Each work phase is discussed in detail.
Date: April 7, 1981
Creator: Brubaker, T.A.
Partner: UNT Libraries Government Documents Department

Meteorological data for SRI study of mesoscale weather effects by pilot plant

Description: The data required to estimate the probability of occurrence of initial meteorological conditions leading to an effect on the weather by the pilot solar thermal electric plant are discussed. No completely appropriate data summaries are available. Vertical atmospheric profiles are the most appropriate source of raw data for a statistical analysis, but these are not available from the pilot plant location either. The available stability data for the pilot plant site are presented. A procedure is outlined to obtain the required estimates of occurrence frequency if desired. However, it is recommended that more substantial effects be demonstrated with a physically realistic model before great effort is expended on data analysis.
Date: May 7, 1980
Partner: UNT Libraries Government Documents Department

Nozzle model of flowing plasma with field reversal

Description: The flowing plasma outflow from a field-reversed plasma gun is modeled by a one-dimensional calculation which is based on the well-known problem of fluid flow through a nozzle. The results suggest that a low plasma mass flow rate is necessary for reconnection to be important. Comparison with 2D MHD calculations and with preliminary data from the BETA-II experiment are consistent with the model at this time.
Date: January 7, 1980
Creator: Shearer, J.W.
Partner: UNT Libraries Government Documents Department

Yemen: Civil War and Regional Intervention

Description: This report provides information on the ongoing crisis in Yemen. The report includes an overview, information about the latest developments in the conflict, Yemen's participation in the United Nations, and the U.S. response to Yemen's humanitarian access.
Date: December 7, 2017
Creator: Sharp, Jeremy M.
Partner: UNT Libraries Government Documents Department

Experimental attempt to achieve microstructure variations through temperature/time permutations for a nonwrought powder metallurgy uranium-6 niobium alloy

Description: The powder metallurgical processing of uranium-6 niobium (U-6Nb) alloy has undergone 3 years of characterization at the Oak Ridge Y-12 Plant. The current structure of the powder metallurgy (P/M) alloy has been described as duplex: a mixture of two or more distinct grain sizes. An experiment was conducted to determine a gamma stabilizing heat treatment (time and temperature combination) to produce a structure consisting of one gamma grain size. Two heat treatments were found to produce an irregular ASTM 4 grain size. Additional P/M U-6Nb alloy material was hot pressed and characterized using the two new heat treatments; however, the resulting microstructures were size ASTM 8. Mechanical properties of the fine-grained P/M material were characterized. Continued evaluation of these results did not determine the cause of the grain refinement.
Date: June 7, 1985
Creator: Alexander-Morrison, G.M.
Partner: UNT Libraries Government Documents Department

Rayleigh-Taylor instability in compressible fluids: Final report for the period 1 October 1985-30 September 1986

Description: The purpose of this research program is to investigate fluid dynamic instabilities and mixing initiated by the interaction of shock waves with interfaces between light and heavy gases. In particular, the nonlinear stage of shock-initiated Rayleigh-Taylor instability (also known as the Richtmeyer-Meshkov instability), the secondary instabilities (e.g., the Kelvin-Helmholtz instability) arising therefrom and the resulting mixing of the two gases are of interest. This report describes activities during the performance period 1 October 1985 to 30 September 1986.
Date: October 7, 1986
Creator: Sturtevant, B.
Partner: UNT Libraries Government Documents Department

FCHART program documentation

Description: The program documentation is presented for the FCHART computer model. This document highlights and explains the various components comprising the FCHART interactive program. Specifically, this document includes descriptions of: program narrative, program overview, model components, thermal analysis, and economic analysis. FCHART is a computer model which calculates domestic water and space heating loads for residential and commercial buildings. This thermal analysis of performance standards of active solar space and domestic water heating systems can be accomplished for either water or air as the transfer fluid. FCHART is also capable of performing life-cycle cost analyses of solar space and water heating of various levels of intricacy. FCHART is written in FORTRAN II. Functions are as follows: CALC and ECON.
Date: March 7, 1977
Partner: UNT Libraries Government Documents Department

Fluid dynamics of double diffusive systems

Description: A study of mixing processes in doubly diffusive systems is being conducted. Continuous gradients of two diffusing components (heat and salinity in our case) are being used as initial conditions, and forcing is introduced by lateral heating and surface shear. The goals of the proposed work include: (1) quantification of the effects of finite amplitude disturbances on stable, double diffusive systems, particularly with respect to lateral heating, (2) development of an improved understanding of the physical phenomena present in wind-driven shear flows in double diffusive stratified environments, (3) increasing our knowledge-base on turbulent flow in stratified environments and how to represent it, and (4) formulation of a numerical code for such flows. The work is being carried out in an experimental facility which is located in the Stanford Environmental Fluid Mechanics Laboratory, and on laboratory minicomputers and CRAY computers. In particular we are focusing on the following key issues: (1) the formation and propagation of double diffusive intrusions away from a heated wall and the effects of lateral heating on the double diffusive system; (2) the interaction between the double diffusively influenced fluxes and the turbulence induced fluxes; (3) the measurement of heat and mass fluxes; and (4) the influence of double diffusive gradients on mixed layer deepening. 1 fig.
Date: April 7, 1989
Creator: Koseff, J. R.
Partner: UNT Libraries Government Documents Department

Chemical interactions in multimetal/zeolite catalysts

Description: Mechanistic explanations have been found for the migration of atoms and ions through the zeolite channels leading to specific distribution of ions and the metal clusters. In this report, we summarize the state of understanding attained on a number of topics in the area of mono- and multimetal/zeolite systems, to which our recent research has made significant contributions. The following topics are discussed: (1) Formation of isolated metal atoms in sodalite cages; (2) differences of metal/zeolite systems prepared by ion reduction in channels or via isolated atoms; (3) rejuvenation of Pd/NaY and Pd/HY catalysts by oxidative redispersion of the metal; (4) formation of mono- or bimetal particles in zeolites by programmed reductive decomposition of volatile metal complexes; (5) cation-cation interaction as a cause of enhanced reducibility; (6) formation of palladium carbonyl clusters in supercages; (7) enhanced catalytic activity of metal particle-proton complexes for hydrocarbon conversion reactions; (8) stereoselectivity of catalytic reactions due to geometric constraints of particles in cages.
Date: February 7, 1992
Creator: Sachtler, W.M.H.
Partner: UNT Libraries Government Documents Department

Direct conversion technology

Description: The overall objective of the Direct Conversion Technology task is to develop an experimentally verified technology base for promising direct conversion systems that have potential application for energy conservation in the end-use sectors. This report contains progress of research on the Alkali Metal Thermal-to-Electric Converter (AMTEC) and on the Two-Phase Liquid-Metal MHD Electrical Generator (LMMHD) for the period January 1, 1991 through December 31, 1991. Research on AMTEC and on LMMHD was initiated during October 1987. Reports prepared on previous occasions (Refs. 1--5) contain descriptive and performance discussions of the following direct conversion concepts: thermoelectric, pyroelectric, thermionic, thermophotovoltaic, thermoacoustic, thermomagnetic, thermoelastic (Nitionol heat engine); and also, more complete descriptive discussions of AMTEC and LMMHD systems.
Date: January 7, 1992
Creator: Massier, P.F.; Back, L.H.; Ryan, M.A. & Fabris, G.
Partner: UNT Libraries Government Documents Department

Titanium-getter testing for TMX-U

Description: This report summarizes the results of titanium-gettering tests performed during August and September of 1983. Several current and voltage schedules were evaluated for possible implementation with TMX-U's computer-controlled getter system. The tests were performed using 1/8-inch wire composed of 85% Ti and 15% Ta. Measurements of wire temperature as a function of getter current were made. We performed glow discharge cleaning (GDC) of the vessel with wires in place to determine if GDC had any adverse effect on wire lifetime.
Date: March 7, 1985
Creator: Clower, C.A. Jr.
Partner: UNT Libraries Government Documents Department

Petroleum marketing monthly, November 1991. [Contains glossary]

Description: The Petroleum Marketing Monthly is designed to give information and statistical data about a variety of crude oils and refined petroleum products. The publication provides statistics on crude oil costs and refined petroleum products sales for use by industry, government, private sector analysts, educational institutions, and consumers. Data on crude oil include the domestic first purchase price, the f.o.b. and landed cost of imported crude oil, and the refiners' acquisition cost of crude oil. Sales data for motor gasoline, distillates, residuals, aviation fuels, kerosene, and propane are presented. 12 figs., 53 tabs.
Date: November 7, 1991
Partner: UNT Libraries Government Documents Department

Winter fuels report: Week ending November 1, 1991

Description: This report is intended to provide concise, timely information to the industry, the press, policymakers, consumers, analysts, and State and local governments on the following topics: distillate fuel oil net production, imports and stocks for all Petroleum Administration for Defense Districts (PADD) and product supplied on a US level; propane net production, imports and stocks for PADD's 1, 2, and 3; natural gas supply and disposition and underground storage for the United States and consumption for all PADD's; residential and wholesale pricing data for propane and heating oil for those Sates participating in the joint Energy Information Administration (EIA)/State Heating Oil and Propane Program; crude oil and petroleum price comparisons for the United States and selected cities; and US total heating degree-days by city. 37 figs., 13 tabs.
Date: November 7, 1991
Partner: UNT Libraries Government Documents Department

Thick-target neutron and. gamma. -ray yields induced by medium-energy proton and deuteron bombardments

Description: Stopping samples of Lucite, Al, Fe, and /sup 238/U (Fe, and /sup 238/U) were irradiated with 330 MeV deuterons (260 MeV protons). For each target, neutron energy spectra and prompt ..gamma..-ray yields were measured using the time-of-flight technique. The detector was a right cylindrical volume of deuterated benzene, 12.5-cm diameter x 7.5-cm long, located at 110/sup 0/ to the incident beam direction. The neutron yield and the prompt ..gamma..-ray yield were found to depend upon the atomic number of the target and upon the incident projectile. The measured shape of the neutron energy spectrum was not strongly dependent on either the incident projectile or the target atomic number. A lower limit for absolute neutron yields was also obtained.
Date: March 7, 1979
Creator: Becker, J. A.; Howe, R. E.; Crase, K. W. & Farley, E.
Partner: UNT Libraries Government Documents Department

Nepal: Political Developments and Bilateral Relations with the United States

Description: This report discusses the socio-economic and political situation in Nepal. The report talks about the government, politics, and regional tensions in Nepal, human rights concerns as well the Nepal's relations with the United States.
Date: April 7, 2011
Creator: Vaughn, Bruce
Partner: UNT Libraries Government Documents Department

Chemical interactions in multimetal/zeolite catalysts

Description: This report treats four subject areas: PtCu/NaY and Pd/Cu/NaY catalysts; reducibility of Ni in PdNi/NaY catalysts; CO hydrogenation over PdNi/NaY catalysts; and PdFe/NaY, Ga/H-ZSM5 and PtGa/H-ZSM5 catalysts.
Date: February 7, 1992
Creator: Sachtler, W.M.H.
Partner: UNT Libraries Government Documents Department

Simulation of longitudinal coupled-bunch instabilities

Description: The purpose of this note is to document some work done as part of the effort directed at designing and simulating a bunch-by-bunch feedback system to control longitudinal coupled bunch instabilities in the B-factory. In particular, I discuss the ring model used in the simulation program developed to study this feedback system. Basically the simulation is a simple tracking program in which the rf drive voltage, the wakefields due to all the bunches, the synchrotron radiation losses, and the kicks applied to the bunches by the bunch-by-bunch feedback are all modelled as voltages applied at a single, discrete point in the ring. The computation of the bunch-by-bunch feedback voltages may of course be done by any desired algorithms. An example and discussion of the general behavior without bunch-by-bunch feedback is given at the end of this report.
Date: February 7, 1991
Creator: Thompson, K.A.
Partner: UNT Libraries Government Documents Department

Groundwater recharge and discharge scenarios for a nuclear waste repository in bedded salt

Description: Twelve potential scenarios have been identified whereby groundwater may enter or exit a nuclear waste repository in bedded salt. The 12 scenarios may be grouped into 4 categories or failure modes: dissolution, fracturing, voids, and penetration. Dissolution modes include breccia pipe and breccia blanket formation, and dissolution around boreholes. Fracture modes include flow through preexisting or new fractures and the effects of facies changes. Voids include interstitial voids (pores) and fluid inclusions. Penetration modes include shaft and borehole sealing failures, undetected boreholes, and new mines or wells constructed after repository decommissioning. The potential importance of thermal effects on groundwater flow patterns and on the recharge-discharge process is discussed. The appropriate levels of modeling effort, and the interaction between the adequacy of the geohydrologic data base and the warranted degree of model complexity are also discussed.
Date: March 7, 1979
Creator: Carpenter, D.W.; Steinborn, T.L. & Thorson, L.D.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen