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In-plant testing of microbubble column flotation

Description: Microbubble column flotation (MCF) was developed at the Virginia Center for Coal and Minerals Processing (VCCMP) for the selective recovery of fine particles. Bench-scale test work conducted at VCCMP, largely under the sponsorship of the U.S. Department of Energy (DOE), showed that the technology worked well for both coal and mineral applications. For the technology to be commercially successful, however, a full-scale demonstration of the MCF technology was deemed necessary. This report summari… more
Date: July 31, 1991
Creator: Yoon, R. H.; Luttrell, G. H.; Adel, G. T. & Mankosa, M. J.
Partner: UNT Libraries Government Documents Department
open access

Waste minimization and pollution prevention awareness plan

Description: The purpose of this plan is to document the Lawrence Livermore National Laboratory (LLNL) Waste Minimization and Pollution Prevention Awareness Program. The plan specifies those activities and methods that are or will be employed to reduce the quantity and toxicity of wastes generated at the site. The intent of this plan is to respond to and comply with (DOE's) policy and guidelines concerning the need for pollution prevention. The Plan is composed of a LLNL Waste Minimization and Pollution Pre… more
Date: May 31, 1991
Partner: UNT Libraries Government Documents Department
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Radiogenic neoplasia in thyroid and mammary clonogens

Description: We have developed rat thyroid and mammary clonogen transplantation systems for the study of radiogenic cancer induction at the target cell level in vivo. The epithelial cell populations of both glands contain small subpopulations of cells which are capable of giving rise to monoclonal glandular structures when transplanted and stimulated with appropriate hormones. During the end of the last grant year and the first half of the current grant year, we have completed analyses and summarized for pu… more
Date: May 31, 1991
Creator: Clifton, K.H.
Partner: UNT Libraries Government Documents Department
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The development and testing of a fieldworthy system of improved fluid pumping device and liquid sensor for oil wells

Description: A major expenditure to maintain oil and gas leases is the support of pumpers, those individuals who maintain the pumping systems on wells to achieve optimum production. Many leases are marginal and are in remote areas and this requires considerable driving time for the pumper. The Air Pulse Oil Pump System is designed to be an economical system for the shallow stripper wells. To improve on the economics of this system, we have designed a Remote Oil Field Monitor and Controller to enable us to a… more
Date: December 31, 1991
Creator: Buckman, W.G.
Partner: UNT Libraries Government Documents Department
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Energy Materials Coordinating Committee (EMaCC)

Description: This report summarizes EMaCC activities for fiscal year 1990 and describes the materials research programs of various offices and divisions within the department. The DOE Energy Materials Coordinating Committee (EMaCC) serves primarily to enhance coordination among the Department's materials programs and to further the effective use of materials expertise within the department. (JL)
Date: May 31, 1991
Partner: UNT Libraries Government Documents Department
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NO sub x destruction in diffusion flame environments

Description: This research is concerned with reburning, which is an NO{sub x} abatement technique involving the injection of secondary fuel into the post flame of a furnace. The specific objectives of this research are to determine whether heterogeneities inherent in diffusion flame environments can be exploited to achieve greater reductions in NO than can be achieved in premixed systems. The research project described here is but a first step to explore this question, and should be viewed more as a screeni… more
Date: July 31, 1991
Creator: Wendt, J.O.L.; Lin, W.C. & Mwabe, P.
Partner: UNT Libraries Government Documents Department
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K-Ar dating of young volcanic rocks

Description: Potassium-Argon (K-Ar) age dates were determined for forty-two young geologic samples by the Laboratory of Isotope Geochemistry, Department of Geosciences, in the period February 1, 1986 to June 30, 1989. Under the terms of Department of Energy Grant No. FG07-86ID12622, The University of Arizona was to provide state-of-the-art K-Ar age dating services, including sample preparation, analytical procedures, and computations, for forty-two young geologic samples submitted by DOE geothermal research… more
Date: January 31, 1991
Creator: Damon, Paul E. & Shafiqullah, Muhammad
Partner: UNT Libraries Government Documents Department
open access

Photochemical solar energy conversion utilizing semiconductors localized in membrane-mimetic systems

Description: Extending the frontiers of colloidal photochemistry and colloidal electrochemistry to solar photochemistry research had been the main objective of this research. More specific objectives of this proposal include the examination of semiconductor-particle-mediated photoelectron transfer and photoelectric effects in different membrane mimetic systems. Emphasis had been placed on developing bilayer lipid membranes and Langmuir-Blodgett films as new membrane-mimetic systems, as well as on the charac… more
Date: August 31, 1991
Creator: Fendler, J.H.
Partner: UNT Libraries Government Documents Department
open access

Radiolabelled D2 agonists as prolactinoma imaging agents

Description: Research conducted in this terminal year of support centered on three distinct areas: mAChR ligand localization in pancreas and the effect of Ca{sup +2} on localization, continuation of assessment of quaternized and neutral mAChR ligands for possible use as PET myocardial imaging agents, and initiation of a study to determine the relationship of the nAChR receptor to the cellular receptor for measles virus. Several tables and figures illustrating the results are included.
Date: December 31, 1991
Creator: Otto, C. A.
Partner: UNT Libraries Government Documents Department
open access

Rapid pressure swing absorption cleanup of post-shift reactor synthesis gas

Description: This investigation is concerned with the separation of gas mixtures using a novel concept of rapid pressure swing absorption (RAPSAB) of gas in a stationary absorbent liquid through gas-liquid interfaces immobilized in the pore mouths of hydrophobic microporous membranes. The process is implemented in a module well-packed with hydrophobic microporous hollow fiber membranes. The specific objectives are (1) to fiber membranes. The specific objectives are (1) to develop a theoretical model which w… more
Date: October 31, 1991
Creator: Sirkar, K. K.; Majumdar, S. & Bhaumik, S.
Partner: UNT Libraries Government Documents Department
open access

Measurement control administration for nuclear materials accountability

Description: In 1986 a measurement control program was instituted at Mound to ensure that measurement performance used for nuclear material accountability was properly monitored and documented. The organization and management of various aspects of the program are discussed. Accurate measurements are the basis of nuclear material accountability. The validity of the accountability values depends on the measurement results that are used to determine inventories, receipts, and shipments. With this measurement i… more
Date: January 31, 1991
Creator: Rudy, C.R.
Partner: UNT Libraries Government Documents Department
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Heavy oil recovery process: Conceptual engineering of a downhole methanator and preliminary estimate of facilities cost for application to North Slope Alaska

Description: The West Sak (Upper Cretaceous) sands, overlaying the Kuparuk field, would rank among the largest known oil fields in the US, but technical difficulties have so far prevented its commercial exploitation. Steam injection is the most successful and the most commonly-used method of heavy oil recovery, but its application to the West Sak presents major problems. Such difficulties may be overcome by using a novel approach, in which steam is generated downhole in a catalytic Methanator, from Syngas m… more
Date: October 31, 1991
Creator: Gondouin, M.
Partner: UNT Libraries Government Documents Department
open access

Energy related applications of elementary particle physics

Description: The current research position is summarized, and what could be done in the future to clarify issues which were opened up by the research is indicated. Following on the discussion of the viability of catalyzed fusion, there is presented along with the key experimental results, a short account of the physics surrounding the subject. This is followed by a discussion of key research topics addressed. In consequence of the progress made, it appears that the feasibility of a small-scale fusion based … more
Date: August 31, 1991
Creator: Rafelski, Johann
Partner: UNT Libraries Government Documents Department
open access

Pen Branch fault program: Interim report on the High Resolution, Shallow Seismic Reflection surveys

Description: The Pen Branch fault was identified in the subsurface at the Savannah River Site in 1989 based upon the interpretation of earlier seismic reflection surveys and other geologic investigations. A program was initiated at that time to further define the fault in terms of its capability to release seismic energy. The High-Resolution, Shallow Seismic Reflection survey recently completed at SRS was initiated to determine the shallowest extent of the fault and to demonstrate the presence of flat-lying… more
Date: January 31, 1991
Creator: Stieve, A.L. (Westinghouse Savannah River Co., Aiken, SC (United States))
Partner: UNT Libraries Government Documents Department
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Synthesis and analysis of novel polymers with high permselectivity and permeability in gas separation applications

Description: Significant progress was made toward developing advanced materials for gas separation membrane applications and rationalizing molecular structure and efficacy: Synthesized and tested polyarylates based on terephthalic or isophthalic acid or a tertiary butyl derivative of the isophthalic acid with different diols to illustrate the effects of: opening'' the matrix by incorporation of bulky packing inhibiting groups such as the tertiary butyl moiety inhibition of backbone motion via meta connected… more
Date: December 31, 1991
Creator: Koros, W. J. & Paul, D. R.
Partner: UNT Libraries Government Documents Department
open access

Carbon-14 removal for disposal of reactor deionizer resins

Description: Disposal of depleted ion exchange resins from the primary system of the Savannah River Site (SRS) reactors is complicated by the presence of Carbon-14. Because Carbon-14 has a long half-life (5,730 years) and high mobility in soils, burial of the resins is no longer a viable option. Consequently some 35 spent reactor deionizers have accumulated that are to be stored aboveground in H-Area for an indefinite period. Spent deionizers containing Carbon-14 will continue to accumulate with operation o… more
Date: October 31, 1991
Creator: Carlton, W. H. & Baumann, E. W.
Partner: UNT Libraries Government Documents Department
open access

Study of heavy flavored particles. Progress report

Description: This report discusses progress on the following topics: time-of- flight system; charmed baryon production and decays; D decays to baryons; measurement of sigma plus particles magnetic moments; and strong interaction coupling. (LSP)
Date: December 31, 1991
Partner: UNT Libraries Government Documents Department
open access

Modeling for Process Control. Progress Report

Description: Significant developments have taken place in the control field during the last decade but their impact on industrial control practice has fallen far short of their full potential. One key difficulty that stands in the way of these new techniques is the need for process models. Work to be carried out under this grant aims at the development of a broad range of novel modeling and identification techniques which specifically address both information requirements of the new control analysis and des… more
Date: December 31, 1991
Creator: Morari, M.
Partner: UNT Libraries Government Documents Department
open access

Rapid pressure swing absorption cleanup of post-shift reactor synthesis gas. Technical progress report No. 4, June 1, 1991--September 31, 1991

Description: This investigation is concerned with the separation of gas mixtures using a novel concept of rapid pressure swing absorption (RAPSAB) of gas in a stationary absorbent liquid through gas-liquid interfaces immobilized in the pore mouths of hydrophobic microporous membranes. The process is implemented in a module well-packed with hydrophobic microporous hollow fiber membranes. The specific objectives are (1) to fiber membranes. The specific objectives are (1) to develop a theoretical model which w… more
Date: October 31, 1991
Creator: Sirkar, K. K.; Majumdar, S. & Bhaumik, S.
Partner: UNT Libraries Government Documents Department
open access

Predictive modelling of boiler fouling. Quarterly technical progress report, July 1, 1991--September 30, 1991

Description: The primary objective of this work is the development of a comprehensive numerical model describing the time evolution of fouling under realistic heat exchanger conditions. As fouling is a complex interaction of gas flow, mineral transport and adhesion mechanisms, understanding and subsequently improved controlling of fouling achieved via appropriate manipulation of the various coupled, nonlinear processes in a complex fluid mechanics environment will undoubtedly help reduce the substantial ope… more
Date: December 31, 1991
Partner: UNT Libraries Government Documents Department
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Salient issues of edge physics pertaining to loss of confinement: A resistive MHD analysis. Technical progress report, FY91

Description: The progress that has been made during this fiscal year is significant in the area of tokamak edge plasma transport. Important contributions on the extension of the drift-rippling mode model ({approximately} {tau}, {approximately}n, {approximately}T, {approximately}{nu}{sub {parallel}}) of edge turbulent transport. In particular, the research areas on which we have concentrated include the following topics: (1) The theoretical investigation of the radiatively enhanced transport due to the effec… more
Date: December 31, 1991
Creator: Thayer, D. R.
Partner: UNT Libraries Government Documents Department
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Inelastic Electron Scattering From Surfaces. Progress Report for Second Grant Year

Description: This report contains highlights of accomplishments of the past year, for the University of California, Irvine and the University of Wisconsin, Milwaukee collaboration on surface excitations, and their interactions with low energy electrons. In addition, we present a summary of future research to be carried out in the coming grant year.
Date: December 31, 1991
Creator: Tong, S. Y. & Mills, D. L.
Partner: UNT Libraries Government Documents Department
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