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Solidification Modeling of a Spiral Casting to Determine Material Fluidity

Description: In casting, fluidity is the measure of the distance a metal can flow in a channel before being stopped by solidification. During mold filling, the metal loses heat to the surrounding mold, thereby cooling and becoming more viscous until the leading portion solidifies and no further flow is possible. A coupled heat-transfer and fluid-flow modeling of a spiral, involving the use of thermophysical properties to determine material fluidity, has been conducted. Simulations of these experiments utili… more
Date: February 1994
Creator: Ahuja, S.; Domanus, H. M.; Schmitt, R. C.; Chuzhoy, L. & Grabel, J. V.
Partner: UNT Libraries Government Documents Department
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Long-term sealing analyses for US Strategic Petroleum Reserve (SPR) caverns

Description: It is inevitable that sealing and abandonment will someday occur in a SPR cavern or caverns. To gain insight into the long-term behavior of a typical SPR cavern following sealing and abandonment, a suite of mechanical finite-element calculations was performed. The initial analyses predict how quickly and to what extent a cavern pressurizes after it is plugged. The analyses also examine the stability of the cavern as it changes shape due to the excessive pressures generated as the salt creeps an… more
Date: February 1, 1994
Creator: Ehgartner, B.
Partner: UNT Libraries Government Documents Department
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Trade and Environment: Treatment in Recent Agreements--GATT and NAFTA

Description: This report reviews some of the concerns surrounding the environment work program and other environmental issues. It briefly describes work underway in the Organization for Economic Cooperation and Development (OECD), and current thinking underlying development of U.S. positions on trade and the environment in the GATT.
Date: February 24, 1994
Creator: Fletcher, Susan R. & Tiemann, Mary
Partner: UNT Libraries Government Documents Department
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Petroleum marketing monthly, January 1994

Description: The Petroleum Marketing Monthly (PMM) 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 … more
Date: February 1, 1994
Partner: UNT Libraries Government Documents Department
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[Aluminum Coordination and Active Sites on Aluminas, Y-Zeolites and Pillared Layered Silicates]. Progress Report

Description: This report is organized in four sections. In the first the authors will outline structural features which are common to all fine grained alumina, as well as to non-framework alumina in zeolites. This section will be followed by a study of the surface vs. bulk coordination of aluminum. The third section will deal with measurement of the number of acid sites and the scaling of their strength. The fourth and last section will describe three model reactions: the isomerization of 1-butene and of 2 … more
Date: February 1, 1994
Creator: Fripiat, J. J.
Partner: UNT Libraries Government Documents Department
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Magnetless magnetic fusion

Description: The authors propose a concept of thermonuclear fusion reactor in which the plasma pressure is balanced by direct gas-wall interaction in a high-pressure vessel. The energy confinement is achieved by means of the self-contained toroidal magnetic configuration sustained by an external current drive or charged fusion products. This field structure causes the plasma pressure to decrease toward the inside of the discharge and thus it should be magnetohydrodynamically stable. The maximum size, temper… more
Date: February 1, 1994
Creator: Beklemishev, A. D. & Tajima, T.
Partner: UNT Libraries Government Documents Department
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Rocky Mountain area petroleum product availability with reduced PADD IV refining capacity

Description: Studies of Rocky Mountain area petroleum product availability with reduced refining capacity in Petroleum Administration for Defense IV (PADD IV, part of the Rocky Mountain area) have been performed with the Oak Ridge National Laboratory Refinery Yield Model, a linear program which has been updated to blend gasolines to satisfy constraints on emissions of nitrogen oxides and winter toxic air pollutants. The studies do not predict refinery closures in PADD IV. Rather, the reduced refining capaci… more
Date: February 1, 1994
Creator: Hadder, G. R. & Chin, S. M.
Partner: UNT Libraries Government Documents Department
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LAHET Code System/CINDER`90 validation calculations and comparison with experimental data

Description: The authors use the Los Alamos LAHET Code System (LCS)/CINDER`90 suite of codes in a variety of spallation neutron source applications to predict neutronic performance and as a basis for making engineering decisions. They have broadened their usage of the suite from designing LANSCE and the next generation of spallation neutron sources for materials science and nuclear physics research to designing a target system for Accelerator Production of Tritium and Accelerator Transmutation of Waste. Whi… more
Date: February 1, 1994
Creator: Brun, T. O.; Beard, C. A.; Daemen, L. L.; Pitcher, E. J.; Russell, G. J. & Wilson, W. B.
Partner: UNT Libraries Government Documents Department
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United States Department of Energy Budget Highlights FY 1995

Description: The Department of Energy is entrusted to contribute to the welfare of the Nation by providing the scientific and educational foundation or the technology, policy, and institutional leadership necessary to achieve efficiency in energy use, diversity in energy sources, and access to technical information required for a more productive and competitive economy, improved environmental quality, and a secure national defense.
Date: February 1, 1994
Creator: O`Leary, H. R.
Partner: UNT Libraries Government Documents Department
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Research priorities for occupational radiation protection

Description: The Subpanel on Occupational Radiation Protection Research concludes that the most urgently needed research is that leading to the resolution of the potential effects of low-level ionizing radiation. This is the primary driving force in setting appropriate radiation protection standards and in directing the emphasis of radiation protection efforts. Much has already been done in collecting data that represents a compendium of knowledge that should be fully reviewed and understood. It is imperati… more
Date: February 1, 1994
Partner: UNT Libraries Government Documents Department
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Groundwater maps of the Hanford Site, June 1993

Description: The Groundwater Maps of the Hanford Site, June 1993 is an update of the series of reports that document the configuration of the uppermost unconfined aquifer beneath the Hanford Site. This report series presents the semiannual water level measurements taken at site groundwater monitoring wells each June and December and the groundwater maps derived from these measurements. These reports document the changes in the groundwater level at Hanford as the site has transitioned from nuclear material p… more
Date: February 1, 1994
Creator: Kasza, G. L.; Hartman, M. J.; Jordan, W. A. & Weekes, D. C.
Partner: UNT Libraries Government Documents Department
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Guidance for establishment and implementation of a national sample management program in support of EM environmental sampling and analysis activities

Description: The role of the National Sample Management Program (NSMP) proposed by the Department of Energy`s Office of Environmental Management (EM) is to be a resource for EM programs and for local Field Sample Management Programs (FSMPs). It will be a source of information on sample analysis and data collection within the DOE complex. Therefore the NSMP`s primary role is to coordinate and function as a central repository for information collected from the FSMPs. An additional role of the NSMP is to monit… more
Date: February 18, 1994
Partner: UNT Libraries Government Documents Department
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Uranium-contaminated soils: Ultramicrotomy and electron beam analysis

Description: Uranium-contaminated soils from the U.S. Department of Energy (DOE) Fernald Site, Ohio, have been examined by a combination of scanning electron microscopy with backscattered electron imaging (SEM/BSE) and analytical electron microscopy (AEM). The inhomogeneous distribution of particulate uranium phases in the soil required the development of a method for using ultramicrotomy to prepare transmission electron microscopy (TEM) thin sections of the SEM mounts. A water-miscible resin was selected t… more
Date: February 1, 1994
Creator: Buck, E. C.; Dietz, N. L.; Bates, J. K. & Cunnane, J. C.
Partner: UNT Libraries Government Documents Department
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Summary of work completed under the Environmental and Dynamic Equipment Qualification research program (EDQP)

Description: This report documents the results of the main projects undertaken under the Environmental and Dynamic Equipment Qualification Research Program (EDQP) sponsored by the U.S. Nuclear Regulatory Commission (NRC) under FIN A6322. Lasting from fiscal year 1983 to 1987, the program dealt with environmental and dynamic (including seismic) equipment qualification issues for mechanical and electromechanical components and systems used in nuclear power plants. The research results have since been used by … more
Date: February 1, 1994
Creator: Steele, R. Jr.; Bramwell, D. L.; Watkins, J. C. & DeWall, K. G.
Partner: UNT Libraries Government Documents Department
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Optimization of the engineering design for the Lansing District Cooling System by comparative analysis of the impact of advanced technologies on a conventional design approach. Volume 1

Description: The Lansing Board of Water and Light (LBWL) began investigating development of a cooling district in the Lansing Downtown in 1989 in order to retain and build summer load for its steam utility. A feasibility study was conducted in conjunction with SFT, Inc. and ZBA, Inc. which addressed many factors such as marketability of the product, impact on the summer steam load, distribution system development, system design, probable capital and operating costs, reliability and environmental and other r… more
Date: February 1, 1994
Partner: UNT Libraries Government Documents Department
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Description of work for 200-UP-1 characterization of monitoring wells

Description: This description of work (DOW) details the field activities associated with the drilling, soil sampling, and construction of groundwater monitoring and dual-use wells in the 200-UP-1 Operable Unit (Tasks 2, 3, and 5 in the 200-UP-1 RI/FS Work Plan DOE/RL 1993a) and will serve as a field guide for those performing the work. It will be used in conjunction with the Remedial Investigation/Feasibility Study Work Plan for the 200-UP-1 Groundwater operable Unit (DOE-RL 1993a, [LFI]) and Site Character… more
Date: February 1, 1994
Creator: Innis, B. E. & Kelty, G. G.
Partner: UNT Libraries Government Documents Department
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Tomographic data developed using the ABEM RAMAC borehole radar system at the Mixed Waste Landfill Integrated Demonstration

Description: The ABEM RAMAC borehole radar system was run as part of the Mixed Waste Landfill Integrated Demonstration for Sandia National Laboratories at Kirtland AFB. Tomograms were created between three test boreholes-UCAP No. 1, UCAP No. 2, and UCAP No. 3. These tomograms clearly delineate areas of amplitude attenuation and residual time of arrival or slowness differences. Plots for slowness were made using both the maximum and minimum of the first arrival pulse. The data demonstrates that the ABEM RAMA… more
Date: February 18, 1994
Creator: MacLeod, G. A.; Barker, D. L. & Molnar, S.
Partner: UNT Libraries Government Documents Department
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Pulse radiolysis of alkanes: A time-resolved electron paramagnetic resonance study

Description: Time-resolved spin-echo-detected electron paramagnetic resonance (EPR) was applied to examine short-lived alkyl radicals formed in pulse radiolysis of liquid alkanes. It was found that the ratio of yields of penultimate and interior radicals in n-alkanes at the instant of their generation is temperature-independent and is ca. 1.25 times greater than the statistical quantity. This higher-than-statistical production of penultimate radicals indicates that the fast ion molecule reactions involving … more
Date: February 14, 1994
Creator: Shkrob, I. A. & Trifunac, A. D.
Partner: UNT Libraries Government Documents Department
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Improved electroacoustic dewatering (EAD) belt press for food products. Phase 3, Technical progress report

Description: Battelle`s electroacoustic dewatering (EAD) process improves the performance of mechanical dewatering processes for several food products (such as corn fiber) by superimposing electric and ultrasonic fields. EAD has the potential to save 0.027 to 0.035 quad/yr energy by 1995 in the food processing industry, which consumed 0.15 to 0.18 quad in 1986. This report covers Phase III for demonstrating the EAD prototype on corn wet milling products (corn fiber and gluten); only Task 1 (prototype prepar… more
Date: February 1, 1994
Partner: UNT Libraries Government Documents Department
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Draft final feasibility study report and proposed plan for Operable Unit 4, response to comments: Fernald Environmental Management Project, Fernald, Ohio

Description: This report contains questions and comments regarding a risk evaluation and possible remedial action of Operable Unit 4 at the Feed Materials Production Center at Fernald, Ohio. Attention is focused on the US EPA Region V feasibility study and on the CRARE. The CRARE is a post-remediation time frame document.
Date: February 1, 1994
Partner: UNT Libraries Government Documents Department
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Separations techniques for recovery and/or removal of toxic metals from spent textile dyebaths

Description: The Textile Resource Conservation Project (TReC) is a major initiative of the American Textile Partnership (AMTEX) focusing on energy and the environment. The largest proposed project in the TReC is Raw Material Recovery and Reuse. The main task within the Raw Material Recovery and Reuse Project is Textile Chemical Recovery. The initial focus of this task is the separation/removal of colorants from solution. Screening studies were performed at a number of US Department of Energy National Labora… more
Date: February 1, 1994
Creator: Babocsi, E. E. & Hallen, R. T.
Partner: UNT Libraries Government Documents Department
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4f heavy fermion photoelectron spectra do not exhibit the Kondo scale

Description: It has been the authors contention for some time that the Single Impurity Anderson Model (SIAM), as extended by Gunnarsson and Schonhammer (GS), or the non-crossing approximation (NCA), does not correctly describe the 4f photoelectron spectra of heavy fermions. Recently, they have concentrated on Yb heavy fermions since in these materials the Kondo resonance (KR) is fully occupied and thus accessible via photoemission. In particular, they have repeatedly pointed out that the width, position, sp… more
Date: February 1, 1994
Creator: Arko, A. J.; Joyce, J. J.; Andrews, A. B.; Blyth, R. I. R.; Bartlett, R. J.; Fisk, Z. et al.
Partner: UNT Libraries Government Documents Department
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Fermi surface instability at 0.4K in a heavy-fermion YbBiPt: SDW?

Description: The authors report results of resistivity measurements of heavy-fermion compound YbBiPt at ambient and hydrostatic pressures of up to {approx} 6kbars and in magnetic field up to 1 Tesla. They interpret the rise of resistivity below 0.4K as partial gaping of the Fermi surface. From the temperature dependence of resistivity they obtain the value of the weak coupling energy gap of {Delta}{sub 0}/k{sub B}T{sub c} = 1.65 {+-} 0.15. Magnetic field -- transition temperature phase diagram follows the w… more
Date: February 1, 1994
Creator: Movshovich, R.; Lacerda, A.; Canfield, P. C.; Thompson, J. D. & Fisk, Z.
Partner: UNT Libraries Government Documents Department
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