Office of Scientific & Technical Information Technical Reports - 136 Matching Results

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Adak Island, Alaska, Microearthquake survey: Preliminary Hypocenter Determinations

Description: Microearthquakes, defined as shocks having magnitudes less than 4, are commonly recorded in the vicinity of geothermal manifestations and volcanism. They have been mapped from producing geothermal fields as well as those not yet developed, in such places as Iceland, El Salvador, Japan, Kenya and the US. Microearthquakes have been recorded at several geothermal sites in the Imperial Valley and Coso Hot Springs, California; Kilbourne Hole, New Mexico; Yellowstone National Park, Wyoming; and The G… more
Date: November 5, 1982
Creator: Lange, Arthur L. & Avramenko, Walter
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Aerated atomization of coal water slurry

Description: In order to better understand the process of slurry atomization, it is important to observe the influence of fluid non-Newtonian rheological behavior on the spray formation process. As a first step, glycerin-water solutions have been atomized. This report describes findings of photographs taken during atomization. 19 figs.
Date: January 5, 1989
Creator: Buckner, H.N.; Sojka, P.E. & Lefebvre, A.H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Agriculture, greenhouse, wetland and other beneficial uses of geothermal fluids and heat

Description: The status for related beneficial uses including agriculture, greenhousing, and geothermal wetlands is presented. Data published for the geothermal fluids found in areas of China have been examined and compared with the geothermal fluids used in the agriculture evaluations in the United States. This comparison indicates that the geothermal fluids found in parts of China are similar to those used in the US agriculture experiments. Greenhousing is addressed largely from the standpoint of hardware… more
Date: April 5, 1981
Creator: Schmitt, R. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Ambipolar potential formation in TMX

Description: TMX experimental data on ambipolar potential control and on the accompanying electrostatic confinement are reported. New results on the radial dependence of the central-cell confining potential are given. Radial and axial particle losses as well as scaling of the central-cell axial confinement are discussed.
Date: May 5, 1981
Creator: Correl, D. L.; Allen, S. L. & Casper, T. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Ambipolar potential formation in TMX

Description: TMX experimental data on ambipolar potential control and on the accompanying electrostatic confinement are reported. New results on the radial dependence of the central-cell confining potential are given. Radial and axial particle losses as well as scaling of the central-cell axial confinement are discussed.
Date: May 5, 1981
Creator: Correll, D. L.; Allen, S. L. & Casper, T. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Analytical and experimental heat transfer and flow-field prediction on a rectangular reentry module

Description: A General Purpose Heat Source (GPHS) has been designed for the purpose of supplying power to a radioisotope thermal generator intended for interplanetary missions. The baseline configuration, nominally 2 in. x 4 in. x 4 in. with sharp edges and corners, is required to survive accidental earth reentry as well as terminal impact velocities. Several problems have been identified relative to survival criteria during reentry. This paper is concerned with the flow field and reentry heating for a broa… more
Date: February 5, 1980
Creator: Laganelli, A.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Application of digital image analysis techniques to the Geyser's data and topography

Description: This paper describes the results of digital image analysis and techniques applied to acoustic sounder data and topographic relief in the Geyser's region. The two dimensional fast Fourier transform (2DFFT) represents the spacial variability of a photographic image. The spacial variability of topography in complex terrain can be represented in this way and insight into degree of complexity and dominating spacial wavelengths can be gained. This was performed for a 16 km square digitized topographi… more
Date: May 5, 1980
Creator: Porch, W.M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Application of microfabrication technology to thermionic energy conversion. Progress report 4, 1 May 1980 to 31 July 1980

Description: Two applications of microfabrication technology to thermionic converters have been investigated theoretically. The first is a novel method of maintaining micron or submicron spacings over large areas (>1 cm/sup 2/), using metals of different expansion coefficients to eliminate the shear stresses on the insulating pillars separating the electrodes. The second uses low-voltage field-emission sources to create ions in a large (approx. 1 mm) interelectrode gap for space charge neutralization. The t… more
Date: September 5, 1980
Creator: Brodie, I.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Approaches to ultrafast neutron detectors

Description: We discuss two approaches to obtain detectors of very high temporal resolution. In the first approach, uranium-coated cathode is used in a streak tube configuration. Secondary electrons accompanying the fission fragments from a neutron-uranium reaction are accelerated, focussed and energy analyzed through a pinhole and streaked. Calculations show that 20 ps time-resolution can be obtained. In the second approach, a uranium-coated cathode is integrated into a transmission line. State-of-the-art … more
Date: October 5, 1984
Creator: Wang, C. L.; Kalibjian, R.; Singh, M. S.; Wiedwald, J. D.; Campbell, D. E.; Campbell, E. M. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Assessment of alternatives for long-term management of uranium ore residues and contaminated soils located at DOE's Niagara Falls Storage Site

Description: About 11,000 m/sup 3/ of uranium ore residues and 180,000 m/sup 3/ of wastes (mostly slightly contaminated soils) are consolidated within a diked containment area at the Niagara Falls Storage Site (NFSS) located about 30 km north of Buffalo, NY. The residues account for less than 6% of the total volume of contaminated materials but almost 99% of the radioactivty. The average /sup 226/Ra concentration in the residues is 67,000 pCi/g. Several alternatives for long-term management of the wastes an… more
Date: November 5, 1984
Creator: Merry-Libby, P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Automated saturated standard cell intercomparison

Description: A cost effective, highly efficient, and automatic method of intercomparing standard cells has been sought after and implemented, utilizing computer control and a commercially available scanner. This system reduces intercomparison time from 4 hours to 30 minutes using the standard National Bureau of Standard (NBS) 4 x 4 design. 7 figs., 1 tab.
Date: October 5, 1987
Creator: Bell, B. E. & Deitesfeld, C. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Axicell MFTF-B superconducting-magnet system

Description: The Axicell MFTF-B magnet system will provide the field environment necessary for tandem mirror plasma physics investigation with thermal barriers. The performance of the device will stimulate DT to achieve energy break-even plasma conditions. Operation will be with deuterium only. There will be 24 superconducting coils consisting of 2 sets of yin-yang pairs, 14 central-cell solenoids, 2 sets of axicell mirror-coil pairs, and 2 transition coils between the axicell mirror coil-pairs and the yin-… more
Date: May 5, 1982
Creator: Wang, S. T.; Bulmer, R.; Hanson, C.; Hinkle, R.; Kozman, T.; Shimer, D. et al.
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Partner: UNT Libraries Government Documents Department
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Beam tests of phosphorescent screens

Description: Twelve phosphorescent screens were beam tested for linearity, uniformity, low radiation damage and a suitable emitted wavelength for use with television cameras. One screen was chosen for the construction of several intercepting profile monitors which were used during the SLC Ten Sector Tests to measure the emittance and wakefield effects of a damped electron beam.
Date: March 5, 1985
Creator: Seeman, J. T.; Luth, V.; Ross, M. & Sheppard, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Calculation of beam sweeping effect for the Fermilab antiproton source

Description: The problems arising from targeting high intensity small-sigma proton pulses for antiproton production can be reduced by the beam sweeping on the target. The presented results of analytical estimations and of the full-scale Monte Carlo studies indicate a significant efficiency of diluting the beam energy deposition. These results are useful to obtain optimum design parameters for various magnetic elements to be put in at the upstream end of the target to develop a beam sweeping system. 8 refs.,… more
Date: April 5, 1989
Creator: Bhat, C. M. & Mokhov, N. V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Central cell confinement in MFTF-B

Description: The point code TANDEM has been used to survey the range of plasma parameters which can be attained in MFTF-B. The code solves for the electron and ion densities and temperatures in the central cell, yin-yang, barrier, and A-cell regions as well as the plasma potential in each region. In these studies, the A-cell sloshing ion beams were fixed while the neutral beams in the yin-yang and central cell, the gas feed in the central cell, and the applied ECRH power ..beta.., central cell ion density a… more
Date: May 5, 1981
Creator: Jong, R.A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Chief financial officer's task force on rationing feasibility, cost and schedule. Final report

Description: The purpose of this memorandum is to report our realistic assessment of the feasibility, cost, and time frame for bringing a rationing program to 90-day readiness. The basic aspects of the nature of the rationing plan are discussed. The plan has been changed in several respects in response to comments from the Congress, the general public and the ECC, since the previous version was rejected by the Congress in May 1979. Three changes in particular impact the preimplementation process: The range … more
Date: March 5, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Cleaning of aluminum alloy 5083. [For welding]

Description: The purpose of this investigation was to evaluate several different cleaning procedures on welds with very low heat inputs. The study evaluated the Oak Ridge Y-12 Plant's chemical cleaning, another type of chemical cleaning, ion cleaning, and diamond-machined cleaning. The results showed that the diamond-machining process provides better weld joint surfaces and sound welds with minimum oxide inclusion and porosity.
Date: June 5, 1986
Creator: Koger, J.W. (comp.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Computation of self-consistent 2-D MHD with neutral-beam and bootstrap currents in elongated plasmas

Description: The observation of substantial current drive from neutral beam injection (NBI) in TFTR, JET and DIII-D has led to renewed interest in a steady state, non-inductively driven tokamak. The discovery of apparently considerable neoclassical (bootstrap) current in TFTR, makes a steady state device even more attractive since the bootstrap portion of the current could be obtained without additional power input. Motivated by these results, we have developed a code, ACCOME, which self-consistently comput… more
Date: April 5, 1983
Creator: Devoto, R. S.; Tani, K. & Azumi, M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Cool pool development. Quarterly technical report No. 2, June-December 1979

Description: The Cool Pool is a variation of the evaporating roof pond idea. The pool is isolated from the living space and the cooled pond water thermosiphons into the water columns located within the building. A computer model of the Cool Pool and the various heat and mass transfer mechanisms involved in the system are discussed. Theory will be compared to experimental data collected from a Cool Pool test building.
Date: January 5, 1980
Creator: Crowther, K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Cornell undulator/summary of discussions

Description: Based on an earlier statement made by CESR (during the meeting in March 1986 at Cornell) that the ring energy can be 6-GeV and the minimum gap can be 0.9 cm, we performed design calculations for the Cornell undulator. These are presented and briefly summaried in this report.
Date: August 5, 1986
Creator: Shenoy, G. & Viccaro, J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Cultural noise in EM prospecting for geothermal resources. Final report

Description: Numerical analysis tools are used to characterize the fields reradiated by cultural scatterers like powerlines, pipelines and fences. These fields are then compared to the returns expected from deeply buried targets and suggestions are made for methods to identify and remove cultural noise from survey data.
Date: February 5, 1981
Creator: Merewether, D.E.; Cox, R.W. & Pate, R.C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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