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Flow of particle suspensions through porous media

Description: A new attempt is made to study the mechanisms of particle invasions into porous media. The following subjects are described: A critical survey of the literature indicating that the mechanism of particle invasions is not known in sufficient detail. The pros and cons of existing particle measuring devices are briefly described. Results from a new laboratory study on particle characterizations are given. The results of the laboratory studies on the flow of particle suspensions through porous media… more
Date: June 22, 1982
Creator: Vetter, O.J.; Kandarpa, V. & Harouaka, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Hybrid space heating/cooling system with Trombe wall, underground venting, and assisted heat pump

Description: Our goal was to design and monitor a hybrid solar system/ground loop which automatically assists the standard, thermostatically controlled home heating/cooling system. The input from the homeowner was limited to normal thermostat operations. During the course of the project it was determined that to effectively gather data and control the various component interactions, a micro-computer based control system would also allow the HVAC system to be optimized by simple changes to software. This fle… more
Date: June 22, 1983
Creator: Shirley, J.W.; James, L.C.; Stevens, S.; Autry, A.N.; Nussbaum, M. & MacQueen, S.V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

New Results From the LASS (Large Aperture Superconducting Solenoid) Spectrometer

Description: New results are presented from analyses of several mesonic and baryonic states containing one or more strange quarks. The data are taken from a high statistics (4 events/nb) study of K p interactions at 11 GeV/c carried out in the LASS Spectrometer at SLAC. New information is reported on the underlying K* states and also evidence for selective coupling of K eta to the K*'s; on the strangeonium members of the axial vector nonets in the K anti K channel; and on evidence for an * state.
Date: June 22, 1987
Creator: Aston, D.; Awaji, N.; Bienz, T.; Bird, F.; D'Amore, J.; Dunwoodie, W. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Mitigation of biofouling using coatings. Quarterly progress report No. 3

Description: Progress is reported in a project in which the objectives are to evaluate benefits associated with control of the surface energetic properties of materials used in heat exchangers, and to identify preferred ranges of these surface conditions that minimize deposits of biological fouling known to deteriorate heat exchange efficiencies in seawater, brackish water and freshwater systems. The technical approach employed uses special diagnostic plates in novel flow cells where fluid flow conditions c… more
Date: June 22, 1981
Creator: Meyer, A. E. & King, R. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Use of ORACLE in a scientific environment

Description: This paper discusses the use of ORACLE at the Fusion Experiments Analysis Facility (FEAF) for the laser program of the Lawrence Livermore National Laboratory. The mission of this VAX based computing facility is to aid laser program scientists and engineers develop their understanding of inertial confinement fusion target behavior. We have incorporated the ORACLE DBMS as a major part of an integrated data management and analysis environment for accomplishing this task. We discuss our use of ORAC… more
Date: June 22, 1983
Creator: Carey, R. W.; Auerbach, J. M.; Lerche, R. A. & Demartini, B. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Applications of intelligent-measurement systems in controlled-fusion research

Description: The paper describes the control and instrumentation for the Mirror Fusion Test Facility at the Lawrence Livermore National Laboratory, California, USA. This large-scale scientific experiment in controlled thermonuclear fusion, which is currently being expanded, originally had 3000 devices to control and 7000 sensors to monitor. A hierarchical computer control system, is used with nine minicomputers forming the supervisory system. There are approximately 55 local control and instrumentation micr… more
Date: June 22, 1981
Creator: Owen, E. W.; Shimer, D. W.; Lindquist, W. B.; Peterson, R. L. & Wyman, R. H.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Characterization and modification of particulate properties to enhance filtration performance

Description: This report describes the results of project activities that occurred during the period from March 1 through May 31, 1989. The organization of this report generally follows the outline of work presented in the Project Work Plan. Work performed during this period included tests under Task 2 -- Parametric Tests of Ashes and Fabrics, and Task 3 -- Survey of Methods to Modify Particle Filtration Properties. Discussion of the Task 2 work has been organized topically, rather than adhering to the acti… more
Date: June 22, 1989
Creator: Snyder, T. R.; Robinson, M. S. & Vann Bush, P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Scale formation at various locations in a geothermal operation due to injection of imported waters

Description: The injection of waters that are not native to a geothermal formation generates various physical and chemical problems. The major chemical problem resulting from such injections is the formation of sulfate scales (particularly CaSO4, BaSO4 and SrSO4) at various locations starting from the injection well through the production well to the surface facilities of any geothermal operation. One of the ways to prevent this type of scale formation is by reducing the sulfate concentration of the injecti… more
Date: June 22, 1982
Creator: Vetter, O.J. & Kandarpa, V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Contrasts in One- and Two-Dimensional Hydrocode Calculations of Laser-Generated Shockwaves in Disk Targets

Description: A comparison is made between 1D and 2D hydrocode calculations and some recent experimental results on laser-driven planar shockwaves in disk targets. A simple model is described which accounts for the trends seen in the calculations and which gives insight into the regime of laser intensity and pulse duration where two-dimensional effects become significant in these experiments.
Date: June 22, 1981
Creator: Harrach, R. J.; Lee, Y. T.; Trainor, R. J.; Holmes, N. C.; Rosen, M. D.; Banner, D. L. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Radiolabelling of chemicals. [Chemical additives used in geothermal operations]

Description: Labeling of chemical additives with radioactive isotopes can solve numerous problems in geothermal operations. The physical and chemical behavior of many chemicals slated for geothermal operations can be studied with the required detail at the extremely low concentration of the commercially available (non-labeled) compounds. The problems of labeling and the basics of these radioactively labeled chemicals are described in this report. Conclusions of this study are: (1) chemicals labeled with rad… more
Date: June 22, 1982
Creator: Vetter, O.J. & Kandarpa, V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Recent experimental progress in the TMX-U thermal barrier tandem mirror experiment

Description: Recent experiments on the TMX-U thermal barrier device at LLNL have achieved the end plugging of axial ion losses up to a central cell density of n/sub c/ = 2 x 10/sup 12/ cm. During these tests, the axial potential profile characteristic of a thermal barrier has been measured experimentally, indicating an ion-confining potential greater than 1.5 kV and a potential depression of 0.45 kV in the barrier region. The average beta of hot electrons in the thermal barrier has been increased to 15% and… more
Date: June 22, 1984
Creator: Turner, W. C.; Allen, S. L.; Casper, T. A.; Clauser, J. F.; Coensgen, F. H.; Correll, D. L. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Course Aperture Study For The Window Frame Dipoles In RHIC

Description: We use PATRICIA to study the quality of the multipolar contribution in the Window Frame Dipoles (WFD). In order to avoid possible noise with insetions, we only use 81 characteristics RHIC cell. As we want to make a comparison with available information on the Dedicated RHIC dipole (DRD), we only determine the apperture of WFD for some values of Δp/p.
Date: June 22, 1984
Creator: Antillon, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A study of microclad thickness variation (1987)

Description: A study was conducted to investigate the thickness variation of microclad material used in fabricating 1E38 bridges. For the role sampled (nine reels), standard deviations within reels ranged from 6.11 to 12.07 {mu}in. Thickness variations within reels ranged from 16.2 to 40.9 {mu}in., with the average thickness between 142.90 and 161.28 {mu}in.
Date: June 22, 1989
Creator: Ramachandran, R.S. & Armstrong, K.P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A study of eddy current measurement (1986-1987)

Description: A study was conducted in 1986 to evaluate a modified eddy current system for measuring copper thickness on Kapton. Results showed a measurement error of 0.42 {mu}in. for a thickness range of 165 to 170 {mu}in. and a measurement variability of 3.2 {mu}in.
Date: June 22, 1989
Creator: Ramachandran, R.S. & Armstrong, K.P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A study of laseruler accuracy and precision (1986-1987)

Description: A study was conducted to investigate Laserruler accuracy and precision. Tests were performed on 0.050 in., 0.100 in., and 0.120 in. gauge block standards. Results showed and accuracy of 3.7 {mu}in. for the 0.12 in. standard, with higher accuracies for the two thinner blocks. The Laserruler precision was 4.83 {mu}in. for the 0.120 in. standard, 3.83 {mu}in. for the 0.100 in. standard, and 4.2 {mu}in. for the 0.050 in. standard.
Date: June 22, 1989
Creator: Ramachandran, R.S. & Armstrong, K.P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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