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Nucla circulating atmospheric fluidized bed demonstration project

Description: During the fourth quarter of 1990, steady-state performance testing at the Nucla Circulating Fluidized Bed (CFB) resumed under sponsorship of the US Department of Energy. Co-sponsorship of the Demonstration Test Program by the Electric Power Research Institute (EPRI) was completed on June 15, 1990. From October through December, 1990, Colorado-Ute Electric Association (CUEA) completed a total of 23 steady-state performance tests, 4 dynamic tests, and set operating records during November and De… more
Date: January 31, 1991
Partner: UNT Libraries Government Documents Department
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Proof of concept and performance optimization of high gravity batch-type centrifugal dryer for dewatering fine coal

Description: The primary objective of the project was to assemble, analyze and make use of those data that could help to clearly identify, optimize and confirm the technical and economic advantages that the new high gravity centrifugal dryer technology can provide to the coal industry and to end users. Other objectives were: to confirm the feasibility of the dryer for drying coals from a number of different seams; to use the data base for optimizing the dryer's systems, and: to produce projected technical a… more
Date: January 1, 1991
Creator: Smith, L. B. & Durney, T.
Partner: UNT Libraries Government Documents Department
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Pelletizing/reslurrying as a means of distributing and firing clean coal

Description: The objective of this study is to develop technology that permits the practical and economic preparation, storage, handling, and transportation of coal pellets, which can be formulated into Coal-Water Fuels (CWFs) suitable for firing in small- and medium-size commercial and industrial boilers, furnaces, and engines.
Date: September 20, 1991
Creator: Conkle, H. N.; Raghavan, J. K.; Smit, F. J. & Jha, M. C.
Partner: UNT Libraries Government Documents Department
open access

An overview of spin physics

Description: Spin physics is playing an increasingly important role in high energy experiments and theory. This review looks at selected topics in high energy spin physics that were discussed at the 9th International Symposium on High Energy Spin Physics at Bonn in September 1990.
Date: July 1, 1991
Creator: Prescott, C. Y.
Partner: UNT Libraries Government Documents Department
open access

Pelletizing/reslurrying as a means of distributing and firing clean coal

Description: The objective of this study is to develop technology that permits the practical and economic preparation, storage, handling, and transportation of coal pellets, which can be reslurried into Coal water fuels (CWF) suitable for firing in small- and medium-size commercial and industrial boilers, furnaces, and engines. The project includes preparing coal pellets and capsules from wet filter cake that can be economically stored, handled, transported, and reslurried into a CWF that can be suitably at… more
Date: November 21, 1991
Creator: Conkle, H. N.; Raghavan, J. K.; Smit, F. J. & Jha, M. C.
Partner: UNT Libraries Government Documents Department
open access

Evaluation protocol for the WIND system atmospheric models

Description: Atmospheric transport and diffusion models have been developed for real-time calculations of the location and concentration of toxic or radioactive materials during a accidental release at the Savannah River Site (SRS). These models are have been incorporated into an automated menu-driven computer based system called the WIND (Weather INformation and Display) system. In an effort to establish more formal quality assurance procedures for the WIND system atmospheric codes, a software evaluation p… more
Date: January 1, 1991
Creator: Fast, J. D.
Partner: UNT Libraries Government Documents Department
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Infrared and visible laser double resonance studies of vibrational energy transfer processes in polyatomic molecules. [Chromyl chloride solutions]

Description: A study of the spectroscopy of chromyl chloride (CrO{sub 2}Cl{sub 2} ) in dilute solutions has been initiated. A discussion is given of its spectra and emission bands. 17 refs, 5 figs, 1 tab. (DLC)
Date: January 1, 1991
Creator: Bhatnagar, R. (Texas Southern Univ., Houston, TX (United States). Dept. of Chemistry)
Partner: UNT Libraries Government Documents Department
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Estimates of DWPF canister production

Description: Specification 1.2 of the repository program's Waste Acceptance Preliminary Specifications requires that the DWPF estimate the radionuclide inventory, and provide the error of the estimate, for each waste type (assumed to be each sludge batch). The inventory of any radionuclide is directly proportional to the number of canisters produced from that sludge batch. Thus, estimating the number of canisters to be produced from each sludge batch is an important part of complying with this specification… more
Date: December 6, 1991
Creator: Plodinec, M. J.
Partner: UNT Libraries Government Documents Department
open access

Low-frequency oscillations in radiative-convective models

Description: Although eastward propagation is usually regarded as an essential feature of the low-frequency Madden-Julian oscillation'' observed in the tropical atmosphere, many observations indicate that there is an important stationary or quasi-stationary component of the oscillation. Yasunari (1979), for example, investigated the stationary 30--60 day variation in upper tropospheric cloudiness in the Asian summer monsoon region. In a case study of the 30--60 day oscillation. Hsu et al. (1990) found a str… more
Date: October 1991
Creator: Hu, Qi & Randall, David A.
Partner: UNT Libraries Government Documents Department
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A discrete ordinate response matrix method for massively parallel computers

Description: A discrete ordinate response matrix method is formulated for the solution of neutron transport problems on massively parallel computers. The response matrix formulation eliminates iteration on the scattering source. The nodal matrices which result from the diamond-differenced equations are utilized in a factored form which minimizes memory requirements and significantly reduces the required number of algorithm utilizes massive parallelism by assigning each spatial node to a processor. The algor… more
Date: January 1, 1991
Creator: Hanebutte, U. R. & Lewis, E. E.
Partner: UNT Libraries Government Documents Department
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Method and apparatus for transporting liquid slurries

Description: An improved method and device to prevent erosion of slurry transport devices is disclosed which uses liquid injection to prevent contact by the slurry composition with the inner surface of the walls of the transport system. A non-abrasive liquid is injected into the slurry transport system and maintains intimate contact with the entire inner surface of the transport system, thereby creating a fluid barrier between the nonabrasive liquid and the inner surface of the transport system which thereb… more
Date: January 1, 1991
Creator: Berry, Gregory F.; Lyczkowski, Robert W. & Wang, Chi-Sheng
Partner: UNT Libraries Government Documents Department
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Gas and liquid phase pyrolysis of tetralin: A reconciliation of apparently contradictory data

Description: The pyrolysis of tetralin under static reactor conditions at 450{degrees}C at 1--3 torr leads to hydrogen loss products (75%), C2 loss products (12%), and neophyl radical rearrangement products (12%). Tetramethylbutane initiated the reaction and the product distribution was unchanged. The rate of reaction is near first order in tetralin accelerated to. The rate is approximately 1/2 order in tetramethybutane. A mechanistic scheme is proposed which involves relatively fast hydrogen atom loss from… more
Date: January 1, 1991
Creator: Gajewski, J. J. & Paul, G. C.
Partner: UNT Libraries Government Documents Department
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Stanford Geothermal Program (quarterly technical report, July--September 1991)

Description: Progress for the reporting period is summarized on the following: analyzing multiwell pressure data for a composite reservoir with a circular discontinuity, adsorption theory from the point of view of numerical simulation, effects adsorption/desorption on reinjection and tracer analysis, and estimation of adsorption parameters from experimental and field data. (MHR)
Date: October 31, 1991
Partner: UNT Libraries Government Documents Department
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Horizontal Devonian shale well, Columbia Natural Resources, Inc. 's, Pocohontas Development Corp. Well 21747, Martin County, Kentucky

Description: Columbia Gas and the United States Department of Energy (DOE) have successfully completed field work on a horizontally drilled Devonian shale well located in Martin County, Kentucky. The objective of this cofunded project is to assess the effectiveness and economic feasibility of applying horizontal drilling and hydraulically fracturing stimulation techniques to enhance the extraction of natural gas from the Devonian shale. The well is comprised of three segments: a conventional vertical sectio… more
Date: May 1, 1991
Creator: Koziar, G.; Ahmad, M. M.; Friend, L. L.; Friend, M. L.; Rothman, E. M. & Stollar, R. L. (Columbia Gas System Service Corp., Columbus, OH (United States))
Partner: UNT Libraries Government Documents Department
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In vivo mutagenicity and clastogenicity of ionizing radiation in nuclear medicine

Description: The overall goal of our research remains to investigate the mutagenic and clastogenic effects of exposure to low levels of ionizing radiation to human lymphocytes. Principally, we are studying hospital patients referred to a nuclear medicine department for diagnostic cardiac imaging and nuclear medicine technologies who administer radionuclides. Emphasis in the first year, as described in the first progress report, was on optimization of the hprt mutation assay, measurement of mutant frequencie… more
Date: January 1, 1991
Creator: Kelsey, K. T.
Partner: UNT Libraries Government Documents Department
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Trip report: Marshall Space Center computed tomography

Description: BIR Inc. is a small company out of the Chicago area which sells equipment for producing images by tomography. They have built a relatively large instrument, called ACTIS, for NASA at the Marshall Space Center in Huntsville, Alabama and still gave access to this instrument. BIR has a grant from the Department of Energy (DOE) to determine the utility of computed tomography (CT) for characterization of nuclear and hazardous waste within the DOE complex. As part of this effort, the potential of thi… more
Date: January 1, 1991
Creator: Harbour, J. R. & Andrews, M. K.
Partner: UNT Libraries Government Documents Department
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1991 Annual report on scientific programs: A broad research program on the sciences of complexity

Description: 1991 was continued rapid growth for the Santa Fe Institute (SFI) as it broadened its interdisciplinary research into the organization, evolution and operation of complex systems and sought deeply the principles underlying their dynamic behavior. Research on complex systems--the focus of work at SFI--involves an extraordinary range of topics normally studied in seemingly disparate fields. Natural systems displaying complex behavior range upwards from proteins and DNA through cells and evolutiona… more
Date: January 1, 1991
Partner: UNT Libraries Government Documents Department
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The strong reactions of Lewis-base noble-metals with vanadium and other acidic transition metals

Description: The noble metals often thought of as unreactive solids,react strongly with nearly 40% of the elements in the periodictable: group IIIB-VB transition metals, lanthanides, theactinides, and group IIIA-IVA non-transition metals. These strong reactions arise from increased bonding/electron transfer fromnonbonding electrons d electron pairs on the noble metal tovacant orbitals on V, etc. This effect is a generalized Lewis acid-base interaction. The partial Gibbs energy of V in the noblemetals has be… more
Date: May 1, 1991
Creator: Ebbinghaus, B. B.
Partner: UNT Libraries Government Documents Department
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Thermodynamics and surface structure of coals

Description: NMR relaxation and shift reagents are being deposited on the surface of coals. The dipolar coupling of the unpaired electron spin of the relaxation agent and the carbon atom should significantly shorten the carbon T, which should broaden it away. We propose to record the NMR spectrum of a coal before and after deposition and subtract the spectra. The difference spectra will arise from the functionalities within approximately one nanometer of the surface and reveal the surface composition of the… more
Date: January 1, 1991
Creator: Glass, A. S.; Larsen, J. W.; Quay, D. M. & Roberts, J. E.
Partner: UNT Libraries Government Documents Department
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An atmospheric tritium release database for model comparisons

Description: A database of vegetation, soil, and air tritium concentrations at gridded coordinate locations following nine accidental atmospheric releases is described. While none of the releases caused a significant dose to the public, the data collected is valuable for comparison with the results of tritium transport models used for risk assessment. The largest, potential, individual off-site dose from any of the releases was calculated to be 1.6 mrem. The population dose from this same release was 46 per… more
Date: December 19, 1991
Creator: Murphy, C. E. Jr. & Wortham, G. R.
Partner: UNT Libraries Government Documents Department
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Escarpment seeps at Shiprock, New Mexico. [Risk posed by seep water to human health and the environment]

Description: The purpose of this report is to characterize the seeps identified at the Shiprock UMTRA Project site during the prelicensing custodial care inspection conducted in December of 1990, to evaluate the relationship between the seeps and uranium processing activities or tailings disposal, and to evaluate the risk posed by the seep water to human health and the environment. The report provides a brief description of the geology, groundwater hydrology, and surface water hydrology. The locations of th… more
Date: October 1991
Partner: UNT Libraries Government Documents Department
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Intense beams at the micron level for the Next Linear Collider

Description: High brightness beams with sub-micron dimensions are needed to produce a high luminosity for electron-positron collisions in the Next Linear Collider (NLC). To generate these small beam sizes, a large number of issues dealing with intense beams have to be resolved. Over the past few years many have been successfully addressed but most need experimental verification. Some of these issues are beam dynamics, emittance control, instrumentation, collimation, and beam-beam interactions. Recently, the… more
Date: August 1, 1991
Creator: Seeman, J. T.
Partner: UNT Libraries Government Documents Department
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