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Low cost hydrogen/novel membrane technology for hydrogen separation from synthesis gas, Phase 1. [Poly(methyl pentene) and poly(etherimide)]

Description: This report summarizes the development of polymer membranes useful in the separation of hydrogen from coal-derived synthesis gas during period 1 October 1985--30 September 1986. During the last year several high performance membranes were developed for the separation of hydrogen from nitrogen and carbon monoxide. The heat resistant resins poly(methyl pentene) (TPX), Mitsui Petrochemical Industries, New York, NY and poly(etherimide) (ULTEM, General Electric, Pittsfield, MA) have been selected as… more
Date: January 1, 1986
Partner: UNT Libraries Government Documents Department
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Support of International Waste Management Agreements in the field of TRU Waste Management

Description: The USDOE has implemented technical information exchange agreements in the field of TRU waste management with the United Kingdom, Federal Republic of Germany, Japan, and France. This has been done in an effort to minimize research and development costs, and ensured maximum safety to man and the environment during waste handling and disposal. In this report, the technical work plan for fiscal year 1986 is presented. (JDL)
Date: January 1, 1986
Partner: UNT Libraries Government Documents Department
open access

(Performance evaluation of fabric bag filters on a bench-scale coal gasifier)

Description: The objective of the proposed work is to demonstrate the operational and economic feasibility of using high-temperature ceramic filters for particulate control in a variety of coal gasification power generating systems.
Date: January 15, 1986
Partner: UNT Libraries Government Documents Department
open access

Low cost hydrogen/novel membrane technology for hydrogen separation from synthesis gas, Phase 1. [Polyetherimide, cellulose acetate and ethylcellulose]

Description: The goal of this program is to develop polymer membranes useful in the preparation of hydrogen from coal-derived synthesis gas. During this quarter the first experiment were aimed at developing high performance composite membranes for the separation of hydrogen from nitrogen and carbon monoxide. Three polymers have been selected as materials for these membranes: polyetherimide cellulose acetate and ethylcellulose. This quarter the investigators worked on polyetherimide and cellulose acetate mem… more
Date: January 1, 1986
Partner: UNT Libraries Government Documents Department
open access

Evaluation of the geological relationships to gas hydrate formation and stability

Description: Although there are many publications pertaining to gas hydrates, their formation and stability in various geological conditions are poorly known. Therefore, for the same reasons and because of the very broad scope of our research, limited amount and extremely dispersed information, the study regions are very large. Moreover, almost without exception the geological environments controlling gas hydrates formation and stability of the studied regions are very complex. The regions studied (complete… more
Date: January 1, 1986
Partner: UNT Libraries Government Documents Department
open access

Low temperature, sulfur tolerant homogeneous catalysts for the water-gas shift reaction

Description: The purpose of this report is to update and reorganize our recent review on homogeneous catalysis of the water-gas shift reaction (WGSR) based on recent literature publications and patents. This updated version will serve as a means of selecting 10 candidate catalyst systems for use in developing effective, sulfur-tolerant, low temperature WGSR catalysts. This report discusses the variations possible in the basic chemistry associated with WGSR catalytic cycles, including basic, acidic, and neut… more
Date: January 20, 1986
Creator: Laine, R. M.
Partner: UNT Libraries Government Documents Department
open access

(Performance evaluation of fabric bag filters on a bench-scale coal gasifier)

Description: The objective of the proposed work is to demonstrate the operational and economic feasibility of using high-temperature ceramic filters for particulate control in a variety of coal gasification power generating systems.
Date: January 15, 1986
Partner: UNT Libraries Government Documents Department
open access

Theoretical and experimental studies of churn flow in vertical tubes. Final technical report

Description: The pattern known as churn flow is a highly unsteady pattern with stochastic features and is extremely complex. However, calculations show that for many geothermal wells the condition of churn flow consists over much of the length of the two phase zone. Furthermore, it frequently exists at the surface so that design of separation equipment and surface piping depends on the accurate modelling of this type of flow. It has been the long term purpose of this project to develop physically based mode… more
Date: January 27, 1986
Partner: UNT Libraries Government Documents Department
open access

Determination of optimum electrolyte composition for molten carbonate fuel cells

Description: The objective of this study is to determine the optimum electrolyte composition for molten carbonate fuel cells. To accomplish this, the contractor will provide: (1) Comprehensive reports of on-going efforts to optimize carbonate composition. (2) A list of characteristics affected by electrolyte composition variations (e.g. ionic conductivity, vapor pressure, melting range, gas solubility, exchange current densities on NiO, corrosion and cathode dissolution effects). (3) Assessment of the overa… more
Date: January 1, 1986
Creator: Pigeaud, A.
Partner: UNT Libraries Government Documents Department
open access

Benchmark of the Convex C-1 mini supercomputer

Description: In July 1985, we benchmarked the Convex C-1 computer at the Convex plant in Richardson, Texas. The machine is marketed as a mini-supercomputer executing a UNIX operating system. The architecture includes vector functional units, 16-million 64-bit words of physical memory and 64 kbytes of set-associative cache between main memory and the CPU. The standard one-processor Los Alamos benchmarks were executed and timed in both single-precision (32-bit) and double-precision (64-bit) floating-point mod… more
Date: January 1, 1986
Creator: Simmons, M.L. & Lubeck, OlM.
Partner: UNT Libraries Government Documents Department
open access

Princeton Plasma Physics Laboratory:

Description: This paper discusses progress on experiments at the Princeton Plasma Physics Laboratory. The projects and areas discussed are: Principal Parameters Achieved in Experimental Devices, Tokamak Fusion Test Reactor, Princeton Large Torus, Princeton Beta Experiment, S-1 Spheromak, Current-Drive Experiment, X-ray Laser Studies, Theoretical Division, Tokamak Modeling, Spacecraft Glow Experiment, Compact Ignition Tokamak, Engineering Department, Project Planning and Safety Office, Quality Assurance and … more
Date: January 1, 1986
Creator: Phillips, C.A. (ed.)
Partner: UNT Libraries Government Documents Department
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Kinetics of coal pyrolysis and devolatilization

Description: Research continued on coal devolatilization. Results are presented for rapid devolatilization experiments performed with the 20 -- 30 micron size cut of the reference coal - PSOC 1451D - a high volatile bituminous, Appalachian Province coal. In agreement with behavior observed in rapid, radiant transient heating experiments -flash lamp - and moderate heating rate - heated grid - experiments for the same coal, the devolatilization process is observed to occur in four distinct phases: intrapartic… more
Date: January 1, 1986
Partner: UNT Libraries Government Documents Department
open access

(Research in the theory of condensed matter and elementary particles. ) Progress report

Description: Progress is summarized in these areas: a new formulation of two dimensional critical phenomena and string theory, supersymmetric critical phenomena and string compactification, conformal field theory on orbifolds, Gaussian models with twisted boundary conditions, modular invariance and supersymmetric critical phenomena, critical indices, conformal invariance, and current algebra, renormalization group fixed points and the string equation of motion, fermionic string field theory, N = 2 super Rie… more
Date: January 1, 1986
Partner: UNT Libraries Government Documents Department
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Predictive models for thermal hazards. [lowest constant surface temperature at which material of given size and shape will self-heat to catastrophic destruction]

Description: Many self-heating accidents with energetic materials have occurred when operations that have been done safely on a small scale are attempted on a larger scale. They have also occurred when a material is heated for a longer time or to a higher temperature than is normal for its processing or storage, such as might be caused by equipment malfunction or power failure. To prevent self-heating accidents, we must be able to predict the critical temperature for the size and shape of the material we ar… more
Date: January 1, 1986
Creator: Janney, J.L. & Rogers, R.N.
Partner: UNT Libraries Government Documents Department
open access

Critical study of type II supernovae: equations of state and general relativity

Description: The relevance of relativistic gravitation and of the properties of nuclear matter at high density to supernova explosions is examined in detail. The existing empirical knowledge on the nuclear equation of state at densities greater than saturation, extracted from analysis of heavy ion collisions and from the breathing mode in heavy nuclei, is also considered. Particulars of the prompt explosions recently obtained theoretically by Baron, Cooperstein, and Kahana are presented. 40 refs., 9 figs., … more
Date: January 1, 1986
Creator: Kahana, S.
Partner: UNT Libraries Government Documents Department
open access

Mechanism of nuclear dissipation in fission and heavy-ion reactions

Description: Recent advances in the theoretical understanding of nuclear dissipation at intermediate excitation energies are reviewed, with particular emphasis on a new surface-plus-window mechanism that involves interactions of either one or two nucleons with the moving nuclear surface and also, for dumbbell-like shapes encountered in fission and heavy-ion reactions, the transfer of nucleons through the window separating the two portions of the system. This novel dissipation mechanism provides a unified ma… more
Date: January 1, 1986
Creator: Nix, J. R. & Sierk, A. J.
Partner: UNT Libraries Government Documents Department
open access

Low cost hydrogen/novel membrane technology for hydrogen separation from synthesis gas, Phase 1. [Poly(etherimide) and poly(ether-ester-amide) membranes]

Description: During the last quarter several high performance membranes for the separation of hydrogen from nitrogen, carbon monoxide, hydrogen sulfide and carbon dioxide. The heat-resistant resin poly(etherimide) has been selected as the polymer with the most outstanding properties for the separation of hydrogen from nitrogen and carbon monoxide. Flat sheet and hollow fiber poly(etherimide) membranes have been prepared and evaluated with pure gases and gas mixtures at elevated pressures and temperatures. M… more
Date: January 1, 1986
Partner: UNT Libraries Government Documents Department
open access

Composite Model of Microstructural Evolution in Austenitic Stainless Steel Under Fast Neutron Irradiation

Description: A rate-theory-based model has been developed which includes the simultaneous evolution of the dislocation and cavity components of the microstructure of irradiated austenitic stainless steels. Previous work has generally focused on developing models for void swelling while neglecting the time dependence of the dislocation structure. These models have broadened our understanding of the physical processes that give rise to swelling, e.g., the role of helium and void formation from critically-size… more
Date: January 1, 1986
Creator: Stoller, R. E. & Odette, G. R.
Partner: UNT Libraries Government Documents Department
open access

Electron spectroscopy study of the heavy fermion compound U/sub 2/Zn/sub 17/

Description: We report x-ray photoemission, resonant photoemission and Bremsstrahlung isochromat spectra of the 4f core levels, the valence band and the conduction band, respectively, of the heavy fermion compound U/sub 2/Zn/sub 17/ and the reference compound Th/sub 2/Zn/sub 17/, and we assess current efforts to interpret such spectra. 19 refs., 4 figs.
Date: January 1, 1986
Creator: Lassailly, Y.; Allen, J.W.; Ellis, W.; Cox, L.; Pate, B.; Fisk, Z. et al.
Partner: UNT Libraries Government Documents Department
open access

Panther Creek, Idaho, Habitat Rehabilitation, Final Report.

Description: The purpose of the project was to achieve full chinook salmon and steelhead trout production in the Panther Creek, Idaho, basin. Plans were developed to eliminate the sources of toxic effluent entering Panther Creek. Operation of a cobalt-copper mine since the 1930's has resulted in acid, metal-bearing drainage entering the watershed from underground workings and tailings piles. The report discusses plans for eliminating and/or treating the effluent to rehabilitate the water quality of Panther … more
Date: January 1, 1986
Creator: Reiser, Dudley W.
Partner: UNT Libraries Government Documents Department
open access

Linear Algebra on High-Performance Computers

Description: This paper surveys work recently done at Argonne National Laboratory in an attempt to discover ways to construct numerical software for high-performance computers. The numerical algorithms are taken from several areas of numerical linear algebra. Discussion of certain architectural features of advanced-computer architectures that will affect the design of algorithms. The technique of restructuring algorithms in terms of certain modules is reviewed. This technique has proved successful in obtain… more
Date: January 1986
Creator: Dongarra, J. J. & Sorensen, D. C.
Partner: UNT Libraries Government Documents Department
open access

Leakage Flow-Induced Vibrations for Variations of a Tube-in-Tube Slip Joint

Description: Variations in the design of a specific slip joint separating two cantilevered, telescoping tubes conveying water were studied to determine their effect upon the leakage flow-induced vibration self-excitation mechanism known to exist for the original slip joint geometry. The important parameters controlling the self-excitation mechanism were identified, which, along with previous results, allowed the determination of a comprehensive set of design rules to avoid unstable vibrations. This was poss… more
Date: January 1986
Creator: Mulcahy, T. M.
Partner: UNT Libraries Government Documents Department
open access

Modeling of explosive densensitization by preshocking

Description: Densensitization of heterogeneous explosives by shocks too weak to initiate propagating detonation occurs because the preshock desensitizes the heterogeneous explosive by closing the voids and making it more homogeneous. A higher pressure second shock has a lower temperature in the multiple shocked explosive than in single shocked explosive. The multiple shock temperature may be low enough to cause a detonation wave to fail to propagate through the preshocked explosive. 9 refs., 8figs., 2 tabs.
Date: January 1, 1986
Creator: Mader, C.L.
Partner: UNT Libraries Government Documents Department
open access

Investigation report of the release of strontium-90 from the Building 3517 Cell Ventilation Improvements construction site on November 29, 1985

Description: This Type B Investigative Report provides an evaluation of all relevant events and activities that led to, were an integral part of, and subsequently resulted from ORNL's November-December 1985 strontium-90 release incident. The impacts were evaluated in terms of radiological doses to ORNL and Rust employees associated with the incident, ORGDP employees who consumed potable water potentially impacted by the incident, and Kingston, Tennessee, residents who also consumed potable water potentially… more
Date: January 21, 1986
Partner: UNT Libraries Government Documents Department
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