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Spermatogonial stem cell renewal following irradiation

Description: The spermatogonial cell renewal system can maintain function and a steady level of cell population for relatively long periods of continuous low-level irradiation indicating that there does not appear to be a serious accumulation, over many generations, of damage affecting proliferation. Provided the dose-rate is quite low, there is an effective selective removal of damaged cells with almost complete repair of cellular nonlethal damage. At dose-rates greater than 2 rad/day, spermatogonia are ve… more
Date: May 1, 1979
Creator: Fabrikant, Jacob I.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Sodium ionization detector and sensor

Description: Work conducted on a basic technology development effort with the Westinghouse Sodium Ionization Detector (SID) sensor is reported. Included are results obtained for three task areas: (1) On-line operational response testing - in-situ calibration techniques; (2) Performance-reliability characteristics of aged filaments; and (3) Evaluation of chemical interference effects. The results showed that a calibrator filament coated with a sodium compound, when activated, does supply the necessary sodium… more
Date: May 8, 1979
Creator: Hrizo, J. & Bauerle, J. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Data handbook for the National Solar Energy Demonstration Program

Description: This preliminary document provides information in a matrix format which lists technical and programmatic data concerning the various project sites selected for the National Solar Energy Demonstration Program. It incorporates into one handbook the commercial, residential, and other demonstration projects which are now a part of the national program. It can be used as a reference source for technical and research purposes on a state-by-state basis.
Date: May 1, 1979
Creator: Christensen, D.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of polycrystal GaAs solar cells. Quarterly technical progress report No. 1, January 15-April 30, 1979

Description: The objective of this program is to develop a thin film GaAs solar cell technology with the potential of yielding cells with 12 to 15% efficiency and to develop thin film growth techniques which are compatible with the low cost production goal of $500/kW-peak. Progress is reported on a study of junction formation in large grain polycrystal GaAs; characterization of the electronic properties of polycrystal GaAs grown by MBE on low cost foreign substrates; optimizing the structure of AlGaAs-GaAs … more
Date: May 1, 1979
Creator: Miller, D. L.; Cohen, M. J.; Harris, Jr., J. S.; Ballantyne, J.; Hoyte, A. & Stefanakos, E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Regional Issue Identification and Assessment program (RIIA). Environmental impacts and issues of the EIA MID-MID scenario: Federal Region III (mid-Atlantic)

Description: The EIA MID-MID scenario generally reinforces existing environmental concerns in the mid-Atlantic region. This results in part from the emphasis on existing rather than new energy technologies. The widespread public opposition to nuclear power in the region is likely to impede realization of the nuclear goals of the scenario. About 50% improvement in sulfur oxides air quality is projected for the region (all states), based on emissions reductions both within the region and in neighboring region… more
Date: May 1, 1979
Creator: Brainard, J. & Lipfert, F.W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Characterization of Open-Cycle, Coal-Fired MHD Generators. Ninth-Tenth Quarterly Technical Progress Report, July 1, 1978-April 30, 1979

Description: The successful design of full-scale open-cycle, coal-fired MHD generators for baseload electrical production requires a detailed understanding of the plasma chemical and plasma dynamic characteristics of anticipated combustor and channel fluids. This report documents progress in efforts to model negative ion formation and slag condensation effects on core flow conductivity, to improve the ability to sample and characterize laboratory produced coal combustion plasmas, and to measure mechanisms a… more
Date: May 1, 1979
Creator: Kolb, C. E.; Wormhoudt, J.; Yousefian, V.; Cheng, W.; Bien, F.; Martinez-Sanchez, M. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Powerplant Productivity Improvement Study: historic performance of Illinois investor-owned electrical-generating units. Final report, Project 2, Task 1

Description: In this task the historical performance of powerplants in Illinois was examined and the opportunities for improved powerplant productivity in Illinois was determined. The four utilities considered were the major investor-owned electric generating utilities in Illinois, i.e., Central Illinois Light Co., (CILCO), Central Illinois Public Service (CIPS), Commonwealth Edison (CECO), and Illinois Power (IP). The major findings are: (1) for evaluation purposes, the equivalent availability was judged t… more
Date: May 4, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Regional Issue Identification and Assessment program (RIIA). Environmental impacts and issues of the EIA MID-MID scenario: Federal Region II (New York and New Jersey)

Description: The impacts described for 1985 and 1990 are based on a national energy projection (scenario) which assumes medium energy demand and fuel supply through 1990 but does not incorporate the policies of the National Energy Act (NEA). This scenario, referred to as the Projection Series C or the TRENDLONG MID-MID scenario, is one of six possible energy futures developed by the DOE Energy Information Administration for the Department's 1977 Annual Report to Congress. It was chosen as representative of … more
Date: May 1, 1979
Creator: Brainard, J. & Munson, J.S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Cross classification of census data for use in estimating residential heating demands

Description: This report documents the procedures and assumptions used to cross classify 1970 census data for use in estimating residential heating demands on a small areal basis. The major results for all census tracts and minor civil divisions in the US comprise (1) counts of occupied dwelling units by building size, by type of space heat equipment, and by space heat fuel type; (2) counts of occupied dwelling units by building size and by water heat fuel type; and (3) the percentage distribution of occupi… more
Date: May 1, 1979
Creator: Tessmer, R.G. Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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DART II documentation. Volume III. Appendices

Description: The DART II is a data acquisition system that can be used with air pollution monitoring equipment. This volume contains appendices that deal with the following topics: adjustment and calibration procedures (power supply adjustment procedure, ADC calibration procedure, analog multiplexer calibration procedure); mother board signature list; schematic diagrams; device specification sheets (microprocessor, asynchronous receiver/transmitter, analog-to-digital converter, arithmetic processing unit, 5… more
Date: May 23, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Gasification in pulverized coal flames. Final report (Part I). Pulverized coal combustion and gasification in a cyclone reactor: experiment and model

Description: A unified experimental and analytical study of pulverized coal combustion and low-BTU gasification in an atmospheric cyclone reactor was performed. Experimental results include several series of coal combustion tests and a coal gasification test carried out via fuel-rich combustion without steam addition. Reactor stability was excellent over a range of equivalence ratios from .67 to 2.4 and air flowrates from 60 to 220 lb/hr. Typical carbon efficiencies were 95% for air-rich and stoichiometric … more
Date: May 1, 1979
Creator: Barnhart, J. S. & Laurendeau, N. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Quark model and high-energy nuclear experiments

Description: Theoretical aspects of the measurements of production of low transverse momentum secondaries in high-energy hadron-nucleus and nucleus-nucleus collisions are discussed. Applications of the quark model to those processes are discussed in some detail. 58 references.
Date: May 1, 1979
Creator: Bialas, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Large scale copper vapor laser computer control system

Description: High power pulse copper vapor laser systems consist of a master oscillator and numerous power amplifiers. Large systems used in laser isotope separation experiments require several automatic control systems. The rapid development of compact mini computers over the past several years has enabled the implementation of sophisticated computer controlled copper vapor laser systems. Present systems provide automatic time synchronization and input power stabilization. Future systems will incorporate s… more
Date: May 15, 1979
Creator: LaChapell, M. J.; Spencer, L. W. & Coutts, G. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Status of Compton recoil gamma-ray spectroscopy

Description: The gamma-ray component of the reactor radiation field can produce effects which impact strongly upon reactor design, shielding, and safety. Radiation effects arising from the gamma-ray component are induced by interaction of the absolute gamma-ray energy spectrum in the reactor environment. Hence, the most fundamental quantity underlying effects produced by the reactor gamma-ray field is the absolute gamma-ray energy continuum. To this end, the current status of Compton recoil gamma-ray spectr… more
Date: May 1, 1979
Creator: Gold, R. & Kaiser, B. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Addition of inexpensive solar air-heaters to a pre-engineered metal building. Final report

Description: At Mississippi State University a research project was begun in 1976 to investigate the use of site-built solar collectors for heating air in poultry houses. The purpose of this work was to design and test a functional air heater solar collector which would be inexpensive to construct and acceptable to poultry producers. The results reported are an extension of the original concept. The basic concept is to use a pre-engineered metal building for the structure and incorporate the solar air heate… more
Date: May 1, 1979
Creator: Forbes, R E & McClendon, R W
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Analytical summary of experimental data from two years of hourly sequential precipitation samples at Brookhaven National Laboratory

Description: Hourly precipitation samples were collected at Brookhaven National Laboratory from June 1976 through May 1978 with the Brookhaven Automatic Sequential Precipitation Sampler. Conventional meteorological data were recorded for each sample period. The samples were analyzed for pH, conductivity, and concentrations of sulfate, nitrogen, ammonium, sodium, and chloride ions. Ratios of selected ions, excess conductivity above the H/sup +/ contribution, and excess sulfate and chloride above the seawater… more
Date: May 1, 1979
Creator: Raynor, G. S. & Hayes, J. V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Metabolism and biological effects of alpha-emitting radionuclides

Description: The emphasis of much of the current and planned research on the toxicity of alpha-emitting radionuclides is directed toward the complexities of actual and potential conditions of occupational environmental exposures of human beings. These, as well as the more limited studies on mechanisms of biological transport and effects, should increase our ability to predict health risks more accurately and to deal more confidently with human exposures, if and when they occur.
Date: May 1, 1979
Creator: Bair, W. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Experimental investigation of the chemistry of excited states of rare gases. Second quarterly progress report, January 15, 1978-April 15, 1979

Description: The reactions of Kr(/sup 3/P/sub 1/) and Xe(/sup 3/P/sub 1/) with halogen compounds, producing rare gas halides, was studied. Abstracts of two papers on excited rare gas states are included. (DLC)
Date: May 1979
Creator: Setser, D. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Waste isolation safety assessment program

Description: Associated with commercial nuclear power production in the United States is the generation of potentially hazardous radioactive wastes. The Department of Energy (DOE), through the National Waste Terminal Storage (NWTS) Program, is seeking to develop nuclear waste isolation systems in geologic formations that will preclude contact with the biosphere of waste radionuclides in concentrations which are sufficient to cause deleterious impact on humans or their environments. Comprehensive analyses of… more
Date: May 1, 1979
Creator: Brandstetter, A. & Harwell, M. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Devices for launching 0. 1-g projectiles to 150 km/s or more to initiate fusion. Part 1. Magnetic-gradient and electrostatic accelerators

Description: The feasibility of using magnetic-gradient and electrostatic accelerators to launch a 0.1-g projectile to hypervelocities (150 km/s or more) is studied. Such hypervelocity projectiles could be used to ignite deuterium-tritium fuel pellets in a fusion reactor. For the magnetic-gradient accelerator, several types of projectile were studied: shielded and unshielded copper, ferromagnetic, and superconducting. The calculations revealed the superconducting projectile to be the best of those materials… more
Date: May 1, 1979
Creator: Brittingham, J.N.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Perspective on relativistic nuclear collisions

Description: The importance of experiments detecting more than one particle is pointed out. The production of nuclei far from stability in peripheral collisions and the expectations for the explosive disassembly of dense nuclear matter (nuclear fireball) and some evidence for it are related. Pion interferometry concerns the measurement of correlations in the momentum and energy of two identical pions; the subject is discussed in relation to incoherent production, coherent production, partially coherent prod… more
Date: May 1, 1979
Creator: Glendenning, N.K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Charmed meson production and decay properties at the psi(3770)

Description: A remeasurement of the resonance near E/sub cm/ = 3.77 GeV in the e/sup +/e/sup -/ annihilation is presented. The properties of the resonance are used to deduce branching fractions of charmed mesons into hadronic final states. Several previously unseen decay modes are reported. Decays into Cabibbo suppressed final states are observed. The inclusive properties of D meson decays are studied, including strangeness and charged particle multiplicity. The semileptonic branching fractions for D/sup 0/… more
Date: May 1, 1979
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Thermal ground-water discharge and associated convective heat flux, Bruneau-Grand View area, southwest Idaho

Description: The Bruneau-Grand View area occupies about 1100 square miles in southwest Idaho. The area has a rural population dependent on ground-water irrigation. Temperature of the ground water ranges from 15/sup 0/C to more than 80/sup 0/C. Ground water for irrigation is obtained from flowing and pumped wells. Discharge of thermal ground water from 104 irrigation wells and 5 hot springs in 1978 was about 50,500 acre-feet. Convective heat flux from the geothermal system associated with this discharge was … more
Date: May 1, 1979
Creator: Young, H. W.; Lewis, R. E. & Backsen, R. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Multielement spark-gap switch system. Final report

Description: An engineering study was made to formulate a conceptual design for a multielement arc-type electrical switch system for switching 50,000-amp, 100-nsec or less pulses from a 50,000-v source at up to 1000 ppS. The switch is to have a lifetime of at least 5 x 10/sup 8/ pulse MTBF, litter time less than 10 nsec, closure time of less than 20 nsec, and 10 nh or less inductance. An offset midplane triggered spark gap (TSG) with ultraviolet (uv) preionization and forced air was selected as the most sui… more
Date: May 2, 1979
Creator: Watson, H.; Gibson, R. A.; Sun, Y. H. & Wickson, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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