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Low-Cost Solar Array Project. Progress report 14, August 1979-December 1979 and proceedings of the 14th Project Integration Meeting

Description: Progress made by the Low-Cost Solar Array Project during the period August through November 1979, is described. Progress on project analysis and integration; technology development in silicon material, large-area sheet silicon, and encapsulation; production process and equipment development; engineering, and operations, and the steps taken to integrate these efforts are detailed. A report on the Project Integration Meeting held December 5-6, 1979, including copies of the visual materials used, … more
Date: January 1, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Two-photon interactions from Mark II at SPEAR

Description: Results on the two-photon production of the eta', f(1270), A/sub 2/(1310), and f'(1515) mesons at SPEAR energies are presented using data taken with the Mark II detector. The radiative width of the eta' has been determined to be GAMMA/sub ..gamma gamma../(eta') = 5.8 +- 1.1 keV (20% systematic uncertainty). Upper limits for the radiative widths of the f, A/sub 2/, and f' have been determined.
Date: May 1, 1980
Creator: Hollebeek, Robert
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Assessment of the potential of colloidal fuels in future energy usage. Final report. [97 references]

Description: Pulverized coal has been an increasing important source of energy over the past century. Most large utility boilers, all modern coking plants, and many industrial boilers and blast furnaces employ pulverized coal as a major feed stream. In periods of oil shortages, such as during World Wars I and II, the concept of adding powdered coal to oil for use in combustion equipment originally designed for oil has been actively pursued but rarely used. Over this same period of time, there have been atte… more
Date: February 25, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Process feasibility study in support of silicon material, Task I. Quarterly technical progress report (XVIII), December 1, 1979-February 29, 1980

Description: Analyses of process system properties were continued for important chemical materials involved in the several processes under consideration for semiconductor and solar cell grade silicon production. Major activities were devoted to physical, thermodynamic and transport property data for silicon. Property data are reported for vapor pressure heat of vaporization, heat of sublimation, liquid heat capacity and solid heat capacity as a function of temperature to permit rapid usage in engineering. C… more
Date: March 1, 1980
Creator: Yaws, C.L. & Li, K.Y.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Prediction of the migration of several radionuclides in ocean sediment with the computer code IONMIG: a preliminary report

Description: A computer code, IONMIG, which is used to calculate the far-field transport of radionuclides through ocean sediment by diffusion and convection is described. The code uses a two-dimensional, axisymmetric, explicit finite difference formulation. Preliminary results for several species (Cs, Pu, I, Tc) are given.
Date: May 1, 1980
Creator: Russo, A.J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Selected results from the Mark II at SPEAR

Description: Recent results on radiative transitions from the psi(3095), charmed meson decay, and the Cabibbo-suppressed decay tau ..-->.. K* ..nu../sub tau/ are reviewed. The results come primarily from the Mark II experiment at SPEAR, but preliminary results from the Crystal Ball experiment on psi radiative transitions are also discussed.
Date: June 1, 1980
Creator: Scharre, D.L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Development of low cost contacts to silicon solar cells. Final report, 15 October 1978-30 April 1980

Description: A summary of work done on the development of a copper based contact system for silicon solar cells is presented. The work has proceeded in three phases: (1) Development of a copper based contact system using plated Pd-Cr-Cu. Good cells were made but cells degraded under low temperature (300/sup 0/C) heat treatments. (2) The degradation in Phase I was identified as copper migration into the cells junction region. A paper study was conducted to find a proper barrier to the copper migration proble… more
Date: January 1, 1980
Creator: Tanner, D. P. & Iles, P. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

MHD air heater development technology. Progress report, November 26, 1979-March 31, 1980

Description: Work on the development of the directly-fired high temperature air heater (HTAH) for MHD power plants is reported. Progress is reported on three tasks: (1) materials selection, evaluation, and development, (2) operability, performance, and materials testing, and (3) full-scale design concepts. Under Task 1, efforts were carried out in several areas. Work on the computer data base for material properties was begun. Data were compiled for several HTAH materials. Materials selections for Valve Tes… more
Date: May 1, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Model validation and sensitivity analysis of solar collector loops. Final technical report

Description: The experimental solar collector systems at Middlebury College have been modified to permit short time resolution studies of solar collector loop performance. A variety of experiments have been performed to measure the following system properties: (a) collector efficiency, (b) collector response to step changes in insolation, (c) collector response to the introduction of cold inlet water, and (d) pump cycling as a function of control sensor location and set points. Data from these experiments h… more
Date: July 30, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Fire protection countermeasures for containment ventilation systems

Description: The goal of this project is to find countermeasures to protect High Efficiency Particulate Air (HEPA) filters, in exit ventilation ducts, from the heat and smoke generated by fire. Initially, methods were developed to cool fire-heated air by fine water spray upstream of the filters. It was recognized that smoke aerosol exposure to HEPA filters could also cause disruption of the containment system. Through testing and analysis, several methods to partially mitigate the smoke exposure to the HEPA… more
Date: August 25, 1980
Creator: Alvares, N.; Beason, D.; Bergman, V.; Creighton, J.; Ford, H. & Lipska, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Annual environmental monitoring report of the Lawrence Berkeley Laboratory, 1979

Description: Monitoring data obtained for the calendar year 1979 are described, and general trends are discussed. The following areas are covered: accelerator produced radiation; radionuclide measurements and release (atmospheric, water, and sewer sampling); population dose equivalent resulting from LBL operations; and nonradioactive pollutants. Over the past several years the atmospheric sampling program has, with the exception of occasional known releases, yielded data which are within the range of normal… more
Date: June 1, 1980
Creator: Schleimer, G.E. (ed.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Metal-insulator-semiconductor photovoltaic devices

Description: The overall objective of this program is to conduct research on metal-insulator-semiconductor (MIS) solar cells to improve understanding of the basic parameters which control photovoltaic processes in these cell structures. Current work includes fabrication, characterization, and theoretical studies of single crystal silicon-based cells, with Si0/sub x/ as the insulating film and Al or Au as the front metal contact. Studies of these two systems are intended to provide needed reference systems f… more
Date: June 1, 1979
Creator: Olsen, L. C.; Garnier, J. E. & Turcotte, R. P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Ocean thermal energy conversion (OTEC) power system development. Preliminary design report, Appendices, Part 1 (Final)

Description: The objective of this project is the development of a preliminary design for a full-sized, closed cycle, ammonia power system module for the 100 MWe OTEC demonstration plant. In turn, this demonstration plant is to demonstrate, by 1984, the operation and performance of an Ocean Thermal Power Plant having sufficiently advanced heat exchanger design to project economic viability for commercial utilization in the late 1980's and beyond. Included in this power system development are the preliminary… more
Date: December 4, 1978
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Annual-cycle thermal energy storage for a community solar system: details of a sensitivity analysis

Description: This report presents results and conclusions of a simulation and sensitivity analysis of community-sized, annual-cycle thermal-energy-storage (ACTES) solar energy systems. The analysis which is based on an hourly simulation is used to (1) size systems in 10 locations, (2) identify critical design parameters, and (3) provide a basic conceptual approach for future studies and designs. This research is a forerunner to an economic analysis of this particular system (based on large constructed tanks… more
Date: July 1, 1980
Creator: Baylin, F.; Monte, R. & Sillman, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Vertical borehole design and completion practices used to remove methane gas from mineable coalbeds

Description: Coalbed gas drainage from the surface in advance of mining has long been the goal of researchers in mine safety. Bureau of Mines efforts to achieve this goal started about 1965 with the initiation of an applied research program designed to test drilling, completion, and production techniques for vertical boreholes. Under this program, over 100 boreholes were completed in 16 different coalbeds. The field methods derived from these tests, together with a basic understanding of the coalbed reservo… more
Date: August 1, 1980
Creator: Lambert, S. W.; Trevits, M. A. & Steidl, P. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Characteristics of synchrotron radiation and of its sources

Description: Synchrotron light emission and the classical relativistic electromagnetic theory describing it are reviewed. The electron optics of storage rings are considered in some detail, beginning with the ideal electron orbit and the distribution which electrons take around it. This is folded with the process of synchrotron light emission itself to define the effective photon source. The predictions of classical relativistic theory are compared with experiment, and one finds agreement within the experim… more
Date: January 1, 1979
Creator: Krinsky, S.; Perlman, M. L. & Watson, R. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Potential for energy conservaton in the metal forming industries. Progress report, July 1, 1978-August 15, 1979

Description: Reduced energy consumption and improved product attributes are realizable benefits that are achievable through the adoption of optimal metal forming techniques. With the meteoric rise in energy costs, certain segments of the metal forming industries have accelerated their efforts in switching from energy intensive manufacturing techniques, e.g., casting, to metal forming, and, furthermore, from hot forming and machined components to cold forming, notably the automotive industry. The first year … more
Date: August 1, 1979
Creator: Avitzur, B.; Beidleman, C. R. & Smackey, B. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

State policies and requirements for management of uranium mining and milling in New Mexico. Volume V. State policy needs for community impact assistance

Description: The report contained in this volume describes a program for management of the community impacts resulting from the growth of uranium mining and milling in New Mexico. The report, submitted to Sandia Laboratories by the New Mexico Department of Energy and Minerals, is reproduced without modification. The state recommends that federal funding and assistance be provided to implement a growth management program comprised of these seven components: (1) an early warning system, (2) a community planni… more
Date: April 1, 1980
Creator: Vandevender, S.G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Low jitter spark gap switch for repetitively pulsed parallel capacitor banks

Description: A two-section air insulated spark gap has been developed for switching multi-kilojoule plus-minus charged parallel capacitor banks which operate continuously at pulse rates up to 20 pps. The switch operates with less than 2 ns jitter, recovers its dielectric strength within 2 to 5 ms and has not shown degraded performance in sequential test runs totaling over a million shots. Its estimated life with copper electrodes is > 10/sup 7/ shots. All preliminary tests indicate that the switch is sui… more
Date: January 1, 1980
Creator: Rohwein, G. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Tests of perturbative quantum chromodynamics in photon-photon collisions

Description: The production of hadrons in the collision of two photons via the process e/sup +/e/sup -/ ..-->.. e/sup +/e/sup -/X can provide an ideal laboratory for testing many of the features of the photon's hadronic interactions, especially its short-distance aspects. That part of two-photon physics which is particularly relevant to tests of perturbative QCD is reviewed here. 6 figures.
Date: January 1, 1979
Creator: Brodsky, Stanley J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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A-dependence of inclusive hadron scattering at 100 GeV. Fermilab-Conf-80/47-Exp

Description: An experiment was performed to study the inclusive processes a/sup +/ + A ..-->.. c/sup + -/ + X, where a and c are either ..pi.., K, or p. The nuclear targets used were C, Al, Cu, Ag, and Pb. The Feynman x and p/sub T/ dependence of particle c was studied using the Fermilab Single Arm Spectrometer. In this paper cross sections are presented as a function of x at transverse momenta of 0.3 and 0.5 GeV/c for each target nucleus. The A-dependence is parameterized as sigma/sub A/ = sigma/sub 0/A… more
Date: January 1, 1980
Creator: Brenner, A. E.; Carey, D. C. & Elias, J. E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Coal derived fuel gases for molten carbonate fuel cells

Description: Product streams from state-of-the-art and future coal gasification systems are characterized to guide fuel cell program planners and researchers in establishing performance goals and developing materials for molten carbonate fuel cells that will be compatible with gasifier product gases. Results are presented on: (1) the range of gasifier raw-gas compositions available from the major classes of coal gasifiers; (2) the degree of gas clean-up achievable with state-of-the-art and future gas clean-… more
Date: November 1, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Charmonium studies with the crystal ball

Description: The Crystal Ball detector at SPEAR is used to analyze the decays psi' ..-->.. ..gamma gamma..psi and psi' ..-->.. ..gamma..chi,chi ..-->.. ..gamma gamma... Values are obtained for the branching ratios of psi' ..-->.. eta/..mu../sup 0/psi and psi' ..-->.. ..gamma..chi,chi ..-->.. ..gamma..psi. No evidence is found for a 2/sup 1/S/sub 0/(eta'c) state in the mass range 3129 ..-->.. 3644 MeV/c/sup 2/. Analysis of the angular distributions in the cascade chi decays yields spin and multipole assignme… more
Date: June 1, 1980
Creator: Oreglia, M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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