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Analysis of Paraho oil shale products and effluents: an example of the multi-technique approach

Description: Inorganic analysis of solid, liquid and gaseous samples from the Paraho Semiworks Retort was completed using a multitechnique approach. The data were statistically analyzed to determine both the precision of each method and to see how closely the various techniques compared. The data were also used to determine the redistribution of 31 trace and major elements in the various effluents, including the offgas for the Paraho Retort operating in the direct mode. The computed mass balances show that … more
Date: June 10, 1979
Creator: Fruchter, J. S.; Wilkerson, C. L.; Evans, J. C. & Sanders, R. W.
Partner: UNT Libraries Government Documents Department
open access

Recent experimental results on the beam-beam effects in storage rings and an attempt of their interpretation

Description: The latest available experimental results on the luminosity, the space charge parameters, and the beam blowup as functions of particle energy and beam current are reviewed. The comparison with the phenomenological diffusion theory is done and useful scaling laws are derived. Some implications for anti p p storage rings are discussed.
Date: June 1, 1980
Creator: Kheifets, S.
Partner: UNT Libraries Government Documents Department
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Discussion: ''toughness variations during the tempering of a plain carbon martensitic steel'' by J. E. King, R. F. Smith and J. F. Knott. Retained austenite and transgranular tempered martensite embrittlement

Description: Discussion is presented to substantiate, clarify and reinterpret some of the results of the above authors for the existence and origin of tempered martensite embrittlement (TME) in relation to retained austenite, with reference to the experimental steels worked at LBL for the past several years.
Date: June 1, 1977
Creator: Rao, B.V.N. & Thomas, G.
Partner: UNT Libraries Government Documents Department
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Hot-electron-ring physics

Description: Separate abstracts were prepared for each of the 16 included papers. (MOW)
Date: June 1, 1982
Creator: Uckan, N.A. (ed.)
Partner: UNT Libraries Government Documents Department
open access

Radiative corrections in SU/sub 2/ x U/sub 1/ LEP/SLC

Description: We show the sensitivity of various experimental measurements to one-loop radiative corrections in SU/sub 2/ x U/sub 1/. Models considered are the standard GSW model as well as extensions of it which include extra quarks and leptons, SUSY and certain technicolor models. The observation of longitudinal polarization is a great help in seeing these effects in asymmetries in e/sup +/e/sup -/ ..-->.. ..mu../sup +/..mu../sup -/, tau/sup +/tau/sup -/ on Z/sup 0/ resonance. 25 refs., 22 figs., 10 tabs.
Date: June 1, 1985
Creator: Lynn, B. W.; Peskin, M. E. & Stuart, R. G.
Partner: UNT Libraries Government Documents Department
open access

Magnetic fusion with high energy self-colliding ion beams

Description: Field-reversed configurations of energetic large orbit ions with neutralizing electrons have been proposed as the basis of a fusion reactor. Vlasov equilibria consisting of a ring or an annulus have been investigated. A stability analysis has been carried out for a long thin layer of energetic ions in a low density background plasma. There is a growing body of experimental evidence from tokamaks that energetic ions slow down and diffuse in accordance with classical theory in the presence of lar… more
Date: June 1, 1992
Creator: Rostoker, N.; Wessel, F. (California Univ., Irvine, CA (United States)); Maglich, B. (Advanced Physics Corp., Irvine, CA (United States)) & Fisher, A. (Naval Research Lab., Washington, DC (United States))
Partner: UNT Libraries Government Documents Department
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Recent US target-physics-related research in heavy-ion inertial fusion: simulations for tamped targets and for disk experiments in accelerator test facilities

Description: Within the last few years, there have also appeared in the Heavy-Ion Fusion literature several studies of targets which have outer tampers. One-dimensional simulations indicate higher target gains with a judicious amount of tamping. But for these targets, a full investigation has not been carried through in regards to conservative criteria for fluid instabilities as well as reasonable imperfections in target fabrication and illumination symmetry which all affect target ignition and burn. Compar… more
Date: June 24, 1982
Creator: Mark, J.W.K.
Partner: UNT Libraries Government Documents Department
open access

Geothermal power production: accidental fluid releases, waste disposal, and water use

Description: Environmental problems related to the use and disposal of fluids can accompany the operation of geothermal power plants using hot water resources (temperature > 150/sup 0/C). More than 100 kg of fluids must be extracted, processed, and disposed for each kW.h of electricity generated from a facility relying on a geothermal reservoir with fluids of 150/sup 0/C. The low thermal efficiencies of geothermal power plants result in large requirements for cooling water - over 7.4 x 10/sup 4/ m/sup 3//MW… more
Date: June 1, 1980
Creator: Layton, D. W. & Morris, W. F.
Partner: UNT Libraries Government Documents Department
open access

Molecular ingredients of heterogeneous catalysis

Description: The purpose of this paper is to present a review and status report to those in theoretical chemistry of the rapidly developing surface science of heterogeneous catalysis. The art of catalysis is developing into science. This profound change provides one with opportunities not only to understand the molecular ingredients of important catalytic systems but also to develop new and improved catalyst. The participation of theorists to find answers to important questions is sorely needed for the soun… more
Date: June 1, 1982
Creator: Somorjai, G.A.
Partner: UNT Libraries Government Documents Department
open access

Fractional charge search

Description: A device to search for fractional charge in matter is described. The sample is coupled to a low-noise amplifier by a periodically varying capacitor and the resulting signal is synchronously detected. The varying capacitor is constructed as a rapidly spinning wheel. Samples of any material in volumes of up to 0.05 ml may be searched in less than an hour.
Date: June 1, 1982
Creator: Innes, W.; Klein, S.; Perl, M. & Price, J.C.
Partner: UNT Libraries Government Documents Department
open access

Probing nuclear matter with dileptons

Description: Dileptons are shown to be of interest in helping probe extreme conditions of temperature and density in nuclear matter. The current state of experimental knowledge about dileptons is briefly described, and their use in upcoming experiments with light ions at CERN SPS are reviewed, including possible signatures of quark matter formation. Use of dileptons in an upcoming experiment with a new spectrometer at Berkeley is also discussed. This experiment will probe the nuclear matter equation of stat… more
Date: June 1, 1986
Creator: Schroeder, L. S.
Partner: UNT Libraries Government Documents Department
open access

Design of neutron streak camera for fusion diagnostics

Description: The D-T burn time for advanced laser-fusion targets is calculated to be very short, < 50 ps. We describe the design of a neutron streak camera of 16 ps resolving time that can be used to study the temporal history of fusion burn. The cathode of the neutron streak camera is sensitive to neutrons and is curved such that the difference in the neutron path lengths from a point source to various parts of the cathode is compensated by electron transit times within the streak tube. Thus the cathode ca… more
Date: June 1, 1982
Creator: Wang, C. L.; Kalibjian, R. & Singh, M. S.
Partner: UNT Libraries Government Documents Department
open access

Formation of a quark-gluon plasma in nuclear collisions

Description: The spatial dependence of the energy deposition in the fragmentation regions is estimated for nuclear collisions at ISR energies, ..sqrt..s/A >approx. 30 GeV/nucleon. Two models (the trailing cascade and sequential decay scenarios) are contrasted. The results are compared to the quark-gluon plasma energy density computed via QCD lattice methods.
Date: June 1, 1982
Creator: Gyulassy, M.
Partner: UNT Libraries Government Documents Department
open access

Thermal reactor safety

Description: Information is presented concerning new trends in licensing; seismic considerations and system structural behavior; TMI-2 risk assessment and thermal hydraulics; statistical assessment of potential accidents and verification of computational methods; issues with respect to improved safety; human factors in nuclear power plant operation; diagnostics and activities in support of recovery; LOCA transient analysis; unresolved safety issues and other safety considerations; and fission product transp… more
Date: June 1, 1980
Partner: UNT Libraries Government Documents Department
open access

Test results of BNL built 40-mm aperture, 17-m-long SSC collider dipole magnets

Description: Eleven 17 m long, 40 mm aperture SSC R D superconducting collider dipole magnets, built at BNL, have been extensively tested at BNL and Fermilab during 1990--91. Quench performance of these magnets and details of their mechanical behavior are presented. 7 refs., 5 figs.
Date: June 1, 1991
Creator: Kuzminski, J.; Bush, T.; Coombes, R.; Devred, A.; DiMarco, J.; Goodzeit, C. et al.
Partner: UNT Libraries Government Documents Department
open access

Scale transformations, the energy-momentum tensor, and the equation of state

Description: The Equation of State (EOS) relates diagonal elements of the energy-momentum tensor {theta}{sub {mu}{nu}}. The first moment of the energy-momentum tensor generates scale transformations. The virial theorem, a consequence of the behavior of the energy density under scale transformations, allows one to eliminate the kinetic energy in terms of the potential terms. The trace theorem for the energy-momentum tensor expresses {epsilon}-3p in terms of ensemble averages of scale-breaking operators, allo… more
Date: June 1989
Creator: Carruthers, P.
Partner: UNT Libraries Government Documents Department
open access

Lack of immediate effects from the 1979-80 Imperial and Victoria earthquakes on the exploited Cerro Prieto geothermal reservoir

Description: In 1979-1980 two large earthquakes of local magnitude (M/sub L/) greater than 6.0 occurred near the Cerro Prieto geothermal field. It has been suggested that related to these seismic events there was an abrupt temperature increase in the wells completed in the shallow (alpha) reservoir. A careful study of the geochemistry of the produced fluids, as well as a cursory reservoir engineering analysis, cannot confirm either the data or the hypothesis of a massive influx of hot water into the system … more
Date: June 1, 1986
Creator: Truesdell, A.H. & Lippmann, M.J.
Partner: UNT Libraries Government Documents Department
open access

Prospects for top at CDF

Description: During the next two years, the Fermilab Tavatron is expected to deliver approximately 100pb{sup {minus}1} of integrated luminosity. We describe improvements to the CDF detector since the 1988--89 collider run and discuss the prospects for the discovery of the top quark during the 1992--93 collider runs.
Date: June 3, 1992
Creator: Gerdes, D. (Chicago Univ., IL (United States))
Partner: UNT Libraries Government Documents Department
open access

Numerical studies of gravity effects in two-phase reservoirs

Description: Numerical studies are performed to investigate the effects of localized feed zones on the pressure transients in two-phase reservoirs. It is shown that gravity effects can significantly affect the pressure transients, because of the large difference in the density of liquid water and vapor. Pressure transients for shallow and deep feed zones and the resulting fluid flow patterns are discussed.
Date: June 1, 1986
Creator: Bodvarsson, G.S. & Cox, B.L.
Partner: UNT Libraries Government Documents Department
open access

Electrical Conductivity Measurements in Shock Compressed Liquid Nitrogen

Description: The electrical conductivity of shock compressed liquid nitrogen was measured in the pressure range 20 to 50 GPa using a two-stage light-gas gun. The conductivities covered a range 4 x 10/sup -2/ to 1 x 10/sup 2/ ohm/sup -1/ cm/sup -1/. The data are discussed in terms of a liquid semiconductor model below the onset of the dissociative phase transition at 30 GPa. 15 refs., 1 fig.
Date: June 1, 1985
Creator: Hamilton, D. C.; Mitchell, A. C. & Nellis, W. J.
Partner: UNT Libraries Government Documents Department
open access

Thermal Reactor Safety

Description: Information is presented concerning fire risk and protection; transient thermal-hydraulic analysis and experiments; class 9 accidents and containment; diagnostics and in-service inspection; risk and cost comparison of alternative electric energy sources; fuel behavior and experiments on core cooling in LOCAs; reactor event reporting analysis; equipment qualification; post facts analysis of the TMI-2 accident; and computational methods.
Date: June 1, 1980
Partner: UNT Libraries Government Documents Department
open access

Three-dimensional thermal analysis of a baseline spent fuel repository

Description: A three-dimensional thermal analysis has been performed using finite difference techniques to determine the near-field response of a baseline spent fuel repository in a deep geologic salt medium. A baseline design incorporates previous thermal modeling experience and OWI recommendations for areal thermal loading in specifying the waste form properties, package details, and emplacement configuration. The base case in this thermal analysis considers one 10-year old PWR spent fuel assembly emplace… more
Date: June 5, 1980
Creator: Altenbach, T.J. & Lowry, W.E.
Partner: UNT Libraries Government Documents Department
open access

Characterization of Nb-Ti superconductors with artificial pinning structures

Description: A series of multifilamentary APC Nb-Ti superconductors have been made with Nb added as a normal second phase to provide flux pinning centers. Two compositions, 12.5% vol % and 25 vol % Nb in Nb-Ti, have fabricated into multifilamentary composites using two different fabrication methods. One method used hot isostatic compaction and hot extrusion thoughout the processing. The other method (bundle-and-draw process) discontinued all hot processing at an intermediate level. While the J{sub c} values… more
Date: June 1, 1990
Creator: Dietderich, D. R. & Scanlan, R. M.
Partner: UNT Libraries Government Documents Department
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