Resource Type

Determination of water movement in the unsaturated zone at Yucca Mountain using chloride, bromide, and chlorine isotopes as environmental tracers. Final report (open access)

Determination of water movement in the unsaturated zone at Yucca Mountain using chloride, bromide, and chlorine isotopes as environmental tracers. Final report

This report, prepared by Hydro Geo Chem staff for Los Alamos National Laboratory, summarizes work conducted by the company under Subcontract 9-XG1-N3993-1. The ultimate objective of this work is to characterize the movement of subsurface water in the vicinity of Yucca Mountain, Nevada. Data produced under this contract is to be used by the US Department of Energy in its Yucca Mountain Site Characterization Project (YMP) to help determine hydrologic flows that may affect the performance of a potential nuclear waste repository. The data may be used in the licensing proceedings, and certain quality assurance procedures have thus been required. The work has focussed on measuring the distribution of environmental tracers-chlorine-36, chlorine, and bromine-and on evaluating the depth to which these conservative solutes have percolated in the unsaturated zone at Yucca Mountain. The following discussion summarizes progress made on the tasks outlined in the original Scope of Work. Details of this work and all data acquired by Hydro Geo Chem for this subcontract have been systematically organized in logbooks and laboratory notebooks. These documents have been structured to make it easy to trace the analytical history of a sample, from time of receipt to the final analytical results.
Date: July 31, 1994
Creator: unknown
System: The UNT Digital Library
Mixed Waste Management Facility, revised FY94 Plan (open access)

Mixed Waste Management Facility, revised FY94 Plan

This revision of the FY94 Plan incorporates changes to work during FY94 in response to the DOE request in the DOE KD-1 decision letter of June 28,1994. This letter provided guidance of both scope and budget profile in response to the Conceptual Design Report (CDR) issued by the MWMF Project in April, 1994. This work plan only addresses work for the remainder of FY94. A revised plan for the complete project is in development and will be issued separately. Since February, 1994, the MWMF Project has been operating on DOE guidance directing that work on the CDR be completed, that only other essential work be continued to maintain the project, and that costs be maintained at approximately the January, 1994 spending levels until a KD-1 decision was made. This has formed the basis for monthly reports through June, 1994. The baseline contained in this report will become the basis for reports during the remainder of FY94.
Date: July 31, 1994
Creator: Streit, R.
System: The UNT Digital Library
Plutonium Consumption Program, CANDU Reactor Project final report (open access)

Plutonium Consumption Program, CANDU Reactor Project final report

DOE is investigating methods for long term dispositioning of weapons grade plutonium. One such method would be to utilize the plutonium in Mixed OXide (MOX) fuel assemblies in existing CANDU reactors. CANDU (Canadian Deuterium Uranium) reactors are designed, licensed, built, and supported by Atomic Energy of Canada Limited (AECL), and currently use natural uranium oxide as fuel. The MOX spent fuel assemblies removed from the reactor would be similar to the spent fuel currently produced using natural uranium fuel, thus rendering the plutonium as unattractive as that in the stockpiles of commercial spent fuel. This report presents the results of a study sponsored by the DOE for dispositioning the plutonium using CANDU technology. Ontario Hydro`s Bruce A was used as reference. The fuel design study defined the optimum parameters to disposition 50 tons of Pu in 25 years (or 100 tons). Two alternate fuel designs were studied. Safeguards, security, environment, safety, health, economics, etc. were considered. Options for complete destruction of the Pu were also studied briefly; CANDU has a superior ability for this. Alternative deployment options were explored and the potential impact on Pu dispositioning in the former Soviet Union was studied. An integrated system can be ready to …
Date: July 31, 1994
Creator: unknown
System: The UNT Digital Library
Savannah River Ecology Laboratory. Annual technical progress report of ecological research, period ending July 31, 1994 (open access)

Savannah River Ecology Laboratory. Annual technical progress report of ecological research, period ending July 31, 1994

The Savannah River Ecology Laboratory (SREL) is a research unit of the University of Georgia (UGA) that is managed in conjunction with the University`s Institute of Ecology. The laboratory`s overall mission is to acquire and communicate knowledge of ecological processes and principles. SREL conducts basic and applied ecological research, as well as education and outreach programs, under an M&O contract with the US Department of Energy at the Savannah River Site. Significant accomplishments were made during the year ending July 31, 1994 in the areas of research, education and service. Reviewed in this document are research projects in the following areas: Environmental Operations Support (impacted wetlands, streams, trace organics, radioecology, database synthesis, wild life studies, zooplankton, safety and quality assurance); wood stork foraging and breeding ecology; defence waste processing facility; environmental risk assessment (endangered species, fish, ash basin studies); ecosystem alteration by chemical pollutants; wetlands systems; biodiversity on the SRS; Environmental toxicology; environmental outreach and education; Par Pond drawdown studies in wildlife and fish and metals; theoretical ecology; DOE-SR National Environmental Research Park; wildlife studies. Summaries of educational programs and publications are also give.
Date: July 31, 1994
Creator: unknown
System: The UNT Digital Library
Nonlinear magnetohydrodynamics. Progress report, July 1, 1993--June 30, 1994 (open access)

Nonlinear magnetohydrodynamics. Progress report, July 1, 1993--June 30, 1994

Work has continued to focus on resistive, viscous, magnetohydrodynamic (MHD) steady states that model tokamak configurations. Recent emphasis has been on the subject of plasma rotation, and the stabilizing effects it has on the kind of MHD activity that results when current thresholds are exceeded in non-rotating configurations. The author believes that relatively superficial consequences of the effects of rotation (e.g., the {open_quotes}velocity shear layer,{close_quotes} which must result when any fluid of whatever nature is rotated in the presence of a material boundary) have been assigned causative effects that do not belong to them, in the presently-dominant perspective on the subject. Output from the author`s three-dimensional spectral-method numerical code has shown how rotation may be made to suppress helical deformations of the current channel and paired helical vortices in a supercritical magnetofluid column. A velocity {open_quotes}shear layer{close_quotes} results if and when there is wall friction. The role of ion parallel viscosity (rather than shear viscosity) in determining stability boundaries in current-carrying magnetofluids is being investigated. A lattice-Boltzmann equation method of computing three-dimensional magnetohydrodynamic toroidal effects is under consideration.
Date: July 30, 1994
Creator: Montgomery, D. C.
System: The UNT Digital Library
Research program on fractured petroleum reservoirs. 2nd Quarterly report, April 1, 1994--June 30, 1994 (open access)

Research program on fractured petroleum reservoirs. 2nd Quarterly report, April 1, 1994--June 30, 1994

Gas-oil gravity drainage experiments in a layered system which were carried out in 1993 are analyzed. The analysis reveals that the shape of the gas relative permeability governs the arrival of the gas phases at the interface between the layers. Based on the analysis of the experiments, it is concluded that, unlike gravity drainage in homogeneous media, the gravity drainage performance of layered media for the unstable downward gas fingering case, is sensitive to the gas relative permeability curve.
Date: July 30, 1994
Creator: Firoozabadi, A.
System: The UNT Digital Library
Summary technical report on the electrochemical treatment of alkaline nuclear wastes (open access)

Summary technical report on the electrochemical treatment of alkaline nuclear wastes

This report summarizes the laboratory studies investigating the electrolytic treatment of alkaline solutions carried out under the direction of the Savannah River Technology Center from 1985-1992. Electrolytic treatment has been demonstrated at the laboratory scale to be feasible for the destruction of nitrate and nitrite and the removal of radioactive species such as {sup 99}Tc and {sup 106}Ru from Savannah River Site (SRS) decontaminated salt solution and other alkaline wastes. The reaction rate and current efficiency for the removal of these species are dependent on cell configuration, electrode material, nature of electrode surface, waste composition, current density, and temperature. Nitrogen, ammonia, and nitrous oxide have been identified as the nitrogen-containing reaction products from the electrochemical reduction of nitrate and nitrite under alkaline conditions. The reaction mechanism for the reduction is very complex. Voltammetric studies indicated that the electrode reactions involve surface phenomena and are not necessarily mass transfer controlled. In an undivided cell, results suggest an electrocatalytic role for oxygen via the generation of the superoxide anion. In general, more efficient reduction of nitrite and nitrate occurs at cathode materials with higher overpotentials for hydrogen evolution. Nitrate and nitrite destruction has also been demonstrated in engineering-scale flow reactors. In flow …
Date: July 30, 1994
Creator: Hobbs, D. T.
System: The UNT Digital Library
Conventional Arms Transfers to the Third World, 1986-1993 (open access)

Conventional Arms Transfers to the Third World, 1986-1993

None
Date: July 29, 1994
Creator: Grimmett, Richard F.
System: The UNT Digital Library
Ion orbit loss and the poloidal electric field in a tokamak (open access)

Ion orbit loss and the poloidal electric field in a tokamak

Monte Carlo simulation studies for ion orbit loss in limiter tokamaks show a poloidal asymmetry in ion loss arising from differences in ion orbit geometry. Since electron loss to the limiter is uniformly distributed because of its tiny orbit width, the nonuniform ion loss could cause a poloidal electric field that would tend to make the ion loss to the limiter more uniform. A simple analytical derivation of this poloidal electric field and a discussion of its effects ion movement and transport are also presented.
Date: July 29, 1994
Creator: Xiao, H.; Hazeltine, R. D. & Valanju, P. M.
System: The UNT Digital Library
Japan's Uncertain Political Transition (open access)

Japan's Uncertain Political Transition

Japan's current political instability began in July 1993, when the Liberal Democratic Party (LDP) -- in power since 1955 - was voted out and replaced by a fragile multiparty coalition government under Prime Minister Morihiro Hosokawa. The new government faced turmoil in April 1994, when Hosokawa suddenly resigned amid a personal financial scandal. Then-deputy prime minister/foreign minister Tsutomu Hata succeeded, but only at the head of a minority government after the Socialist party, a key coalition partner, quit the Hata coalition. Although beset by its own internal squabbles, the LDP remained the single largest party in Japan's bicameral Diet, or parliament. In late June, Hata was forced to resign under threat of an LDP-led no-confidence motion.
Date: July 29, 1994
Creator: Shinn, Rinn-Sup
System: The UNT Digital Library
Precipitate hydrolysis experimental facility (PHEF): Run 64 report (open access)

Precipitate hydrolysis experimental facility (PHEF): Run 64 report

The significant findings of Run 64 are: (a) Carbon dioxide was demonstrated to be an acceptable inertant for the actual hydrolysis process. However, based on the severe degradation of the tetraphenylborate (TPB) precipitate slurry stored in the Precipitate Hold Tank (PHT) at PHEF following Run 65, further evaluation of the suitability of carbon dioxide as an inertant for the long term storage of precipitate slurries is warranted. (b) Phenylboronic acid (PBA) reaction kinetics were excellent with no detectable PBA in Precipitate Hydrolysis Aqueous (PHA) product. (c) PHA product was low in biphenyl (6 mg/l), diphenylamine (13 mg/l), and total high boiling organics (22 mg/l). (d) Reproduced vacuum collapse problems encountered in DWPF (Defense Waste Processing Facility) water runs and demonstrated that the high vacuums experience during water runs could not be reproduced under normal operating conditions. (e) High benzene losses through stack and fugitive emissions were noted during Run 64. This may lead to poor decanter extraction performance long term and may be problem in DWPF, especially during long lay-ups or at low attainments. Approximately 69% of the benzene produced during Run 64 was released as benzene emissions.
Date: July 29, 1994
Creator: Lambert, D. P.; Edwards, R. E.; Shah, H. B. & Young, S. R.
System: The UNT Digital Library
Review of sensors for the in situ chemical characterization of the Hanford underground storage tanks (open access)

Review of sensors for the in situ chemical characterization of the Hanford underground storage tanks

Lawrence Livermore National Laboratory (LLNL), in the Technical Task Plan (TTP) SF-2112-03 subtask 2, is responsible for the conceptual design of a Raman probe for inclusion in the in-tank cone penetrometer. As part of this task, LLNL is assigned the further responsibility of generating a report describing a review of sensor technologies other than Raman that can be incorporated in the in-tank cone penetrometer for the chemical analysis of the tank environment. These sensors would complement the capabilities of the Raman probe, and would give information on gaseous, liquid, and solid state species that are insensitive to Raman interrogation. This work is part of a joint effort involving several DOE laboratories for the design and development of in-tank cone penetrometer deployable systems for direct UST waste characterization at Westinghouse Hanford Company (WHC) under the auspices of the U.S. Department of Energy (DOE) Underground Storage Tank Integrated Demonstration (UST-ID).
Date: July 29, 1994
Creator: Kyle, Kevin R. & Mayes, Eric L.
System: The UNT Digital Library
China-U.S. Trade Issues (open access)

China-U.S. Trade Issues

The growing U.S. trade imbalance with China, and alleged Chinese unfair trade practices, have become of major concern to many U.S. policymakers. Over the past few years, the U.S. trade deficit with China has grown at a faster rate than that of any other major U.S. trading partner. In 1993, the U.S. trade deficit with China totalled $22.8 billion, the second largest U.S. bilateral trade imbalance after Japan. Many trade analysts have attributed the growing U.S.-China trade deficit to a variety of Chinese restrictive trade practices. Other areas of concern to the United States have included China's alleged violation of U.S. intellectual property rights, transshipments of textiles to the United States in violation of U.S. textile quotas, and China's alleged use of forced labor for products exported to the United States.
Date: July 28, 1994
Creator: Morrison, Wayne M.
System: The UNT Digital Library
Field measurements of tracer gas transport by barometric pumping (open access)

Field measurements of tracer gas transport by barometric pumping

Vertical gas motions induced by barometric pressure variations can carry radioactive gases out of the rubblized region produced by an underground nuclear explosion, through overburden rock, into the atmosphere. To better quantify transit time and amount of transport, field experiments were conducted at two sites on Pahute Mesa, Kapelli and Tierra, where radioactive gases had been earlier detected in surface cracks. At each site, two tracer gases were injected into the rubblized chimney 300-400 m beneath the surface and their arrival was monitored by concentration measurements in gas samples extracted from shallow collection holes. The first ``active`` tracer was driven by a large quantity of injected air; the second ``passive`` tracer was introduced with minimal gas drive to observe the natural transport by barometric pumping. Kapelli was injected in the fall of 1990, followed by Tierra in the fall of 1991. Data was collected at both sites through the summer of 1993. At both sites, no surface arrival of tracer was observed during the active phase of the experiment despite the injection of several million cubic feet of air, suggesting that cavity pressurization is likely to induce horizontal transport along high permeability layers rather than vertical transport to the surface. …
Date: July 28, 1994
Creator: Lagus, P. L.; McKinnis, W. B.; Hearst, J. R.; Burkhard, N. R. & Smith, C. F.
System: The UNT Digital Library
Safe Drinking Water Act Amendments of 1994 Summary of S. 2019, as Passed (open access)

Safe Drinking Water Act Amendments of 1994 Summary of S. 2019, as Passed

On May 19, 1994, the Senate passed, by a vote of 95 to 3, S. 2019, the Safe Drinking Water Act Amendments of 1994, a comprehensive proposal to reauthorize and amend the Safe Drinking Water Act (SDWA). During floor debate on the bill, the Senate considered numerous amendments, many of which were adopted. This report summarizes selected provisions of S. 2019, as passed.
Date: July 28, 1994
Creator: Tiemann, Mary
System: The UNT Digital Library
Gas and liquid sampling for closed canisters in K-West basins - functional design criteria (open access)

Gas and liquid sampling for closed canisters in K-West basins - functional design criteria

The purpose of this document is to provide functions and requirements for the design and fabrication of equipment for sampling closed canisters in the K-West basin. The samples will be used to help determine the state of the fuel elements in closed canisters. The characterization information obtained will support evaluation and development of processes required for safe storage and disposition of Spent Nuclear Fuel (SNF) materials.
Date: July 27, 1994
Creator: Pitkoff, C. C.
System: The UNT Digital Library
Gas and liquid sampling for closed canisters in the K-West Basin (open access)

Gas and liquid sampling for closed canisters in the K-West Basin

Functional design criteria for a gas/liquid sampler for KW Basin.
Date: July 27, 1994
Creator: Pitkoff, C. C.
System: The UNT Digital Library
Magnetic field components in a sinusoidally varying helical wiggler (open access)

Magnetic field components in a sinusoidally varying helical wiggler

One may be interested in a pure multipole magnetic field (i.e., proportional to sin(n{theta}) or cos(n{theta}) whose strength varies purely as a Fourier sinusoidal series of the longitudinal coordinate z (say proportional to cos{sub L}/{sup (2m-1){pi}z}), where L denotes the half-period of the wiggler and m=1,2,3{hor_ellipsis}). Associated with such a z variation, there necessarily will be presented a z component of magnetic field which in the source-free region, in fact, will give rise to both normal and skew transverse fields associated with the functions A{sub n}(z) and {Angstrom}{sub n}(z) as expressed in Reference{sup bc}. In this note the field components and expression for the scalar potential both inside and outside a thin pure winding surface are included with additional contributions from a possible high permeable shield. It is also shown that for a pure dipole case of n=1 and pure axial variation of m=1 the transverse field can be derived from a simple two dimensional field.
Date: July 27, 1994
Creator: Caspi, S.
System: The UNT Digital Library
EIA Directory of Electronic Products, Second quarter 1994 (open access)

EIA Directory of Electronic Products, Second quarter 1994

EIA makes available for public use a series of machine-readable data files and computer models, on magnetic tapes; selected data files/models are also available on PC diskettes. The data files include: petroleum, natural gas, electricity, coal, integrated statistics, and consumption. Models include: petroleum, natural gas, electricity, coal, nuclear, and multifuel. On-line files and compact discs include: electronic publishing system, federal bulletin board, economic bulletin board, national trade data bank, national economic/social/environmental data bank, and FedWorld Gateway. For each product listed in this directory, an abstract describes the data published. Contact persons are provided, as are indexes.
Date: July 26, 1994
Creator: unknown
System: The UNT Digital Library
Field Measurements of Heating Efficiency of Electric Forced-Air Furnaces in Six Manufactured Homes. (open access)

Field Measurements of Heating Efficiency of Electric Forced-Air Furnaces in Six Manufactured Homes.

This report presents the results of field measurements of heating efficiency for six manufactured homes in the Pacific Northwest heated with electric forced-air systems. This is the first in a series of regional and national efforts to measure in detail the heating efficiency of manufactured homes. Only six homes were included in this study because of budgetary constraints; therefore this is not a representative sample. These investigations do provide some useful information on the heating efficiency of these homes. Useful comparisons can be drawn between these study homes and site-built heating efficiencies measured with a similar protocol. The protocol used to test these homes is very similar to another Ecotope protocol used in the study conducted in 1992 and 1993 for the Bonneville Power Administration to test the heating efficiency of 24 homes. This protocol combined real-time power measurements of furnace energy usage with energy usage during co-heat periods. Accessory data such as house and duct tightness measurements and tracer gas measurements were used to describe these homes and their heating system efficiency. Ensuring that manufactured housing is constructed in an energy and resource efficient manner is of increasing concern to manufactured home builders and consumers. No comparable work has …
Date: July 26, 1994
Creator: Davis, Bob; Palmiter, Larry S. & Siegel, Jeff
System: The UNT Digital Library
Interdisciplinary study of reservoir compartments. [Quarterly report, April 1, 1994--June 30, 1994] (open access)

Interdisciplinary study of reservoir compartments. [Quarterly report, April 1, 1994--June 30, 1994]

This DOE research project was established to document the integrated team approach for solving reservoir engineering problems. A field study integrating the disciplines of geology, geophysics, and petroleum engineering will be the mechanism for documenting the integrated approach. This is an area of keen interest to the oil and gas industry. The goal will be to provide tools and approaches that can be used to detect reservoir compartments, reach a better reserve estimate, and improve profits early in the life of a field. Progress reports are presented for the following tasks: reservoir selection and data gathering; outcrop/core/log analysis/ and correlations, internal architecture description; seismic analysis; and permeability experimental work.
Date: July 26, 1994
Creator: Van Kirk, C. W. & Thompson, R. S.
System: The UNT Digital Library
International Petroleum Statistics Report, July 1994 (open access)

International Petroleum Statistics Report, July 1994

The International Petroleum Statistics Report presents data on international oil production, demand, imports, exports, and stocks. The report has four sections. Section 1 contains time series data on world oil production, and on oil demand and stocks in the Organization for Economic Cooperation and Development (OECD). This section contains annual data beginning in 1985, and monthly data for the most recent two years. Section 2 presents an oil supply/demand balance for the world. This balance is presented in quarterly intervals for the most recent two years. Section 3 presents data on oil imports by OECD countries. This section contains annual data for the most recent year, quarterly data for the most recent two quarters, and monthly data for the most recent twelve months. Section 4 presents annual time series data on world oil production and oil stocks, demand, and trade in OECD countries. World oil production and OECD demand data are for the years 1970 through 1993; OECD stocks from 1973 through 1993; and OECD trade from 1983 through 1993. Data for the United States are developed by the Energy Information Administration`s (EIA) Office of Oil and Gas. Data for other countries are derived largely from published sources, including International …
Date: July 26, 1994
Creator: unknown
System: The UNT Digital Library
Investigation of the particle selectivity of a traveling potential wave; neon isotope separation with the Solitron process. Final report (open access)

Investigation of the particle selectivity of a traveling potential wave; neon isotope separation with the Solitron process. Final report

The specific goal of this three year effort was to investigate this novel isotope separation process itself: to determine whether isotopes could indeed be separated and, if so, with what limitations--space charge effects, instabilities, and, in particular, with what throughput limitations. Termed the Solitron process, the concept is based on the strong isotopic variation in wave/ion interaction for a potential wave passing through an ion beam when the wave speed is near the ion speed. The ion`s charge-to-mass ratio determines not only which ions are picked up by the wave but also the final energy of those ions that are picked up (accelerated to a higher energy); thus, this method can be used for isotope separation. Much progress was made regarding separation and throughput, concluding that separation works well in conjunction with electrostatic focusing used to obtain enough throughput (enough beam current) to make a practical device. The next step would likely be a production device, although development of an appropriate metal ion source would be useful. Funding is an issue; development cost estimates run around two million dollars for a market only several times that cost. Although there is much concern about the future supply of isotopes such as …
Date: July 26, 1994
Creator: Lowder, R.S.
System: The UNT Digital Library