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Energy transfer mechanisms in photobiological reactions. Final report, 1 April 1960--31 March 1979. [Photodynamic processes in selected biomolecules]

Description: This project was concerned primarily with studies of the mechanisms of the sensitized photooxidation of selected biomolecules using a variety of phtosensitizers. Such reactions are often termed photodynamic processes. In particular we have carried out steady-state kinetic studies, flash photolysis and spectral studies, and product formation studies of the sensitized photooxidation of the five susceptible amino acids (cycteine, histidine, methonine, tryptophan, and tyrosine) and their derivatives, as well as purines and pyrimidines. A number of studies were also carried out on the mechanisms of the photodynamic inactivation of enzymes (trypsin, ribonuclease, lysozyme). Mechanism of photosensitization were studied using a variety of sensitizers including flavins, porphyrins, and a number of synthetic dyes (substituted fluoresceins, acridines, thyazines).
Date: March 31, 1979
Creator: Spikes, J.D.
Partner: UNT Libraries Government Documents Department
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Research in radiobiology. Annual report of work in progress in the internal irradiation program

Description: The toxicity, retention, biological effects, distribution, decorporation and measuring techniques of radionuclides are discussed. Calculations of trabecular bone formation rates from tetracycline labeling is included. The characteristics of trabecular bone in the Rhesus monkey are discussed. Studies on the early retention and distribution of radium 224 in beagles are included. Studies on the decorporation of plutonium and americium in dogs by DTPA and salicylic acid are presented.
Date: March 31, 1979
Partner: UNT Libraries Government Documents Department
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50 kW on-site concentrating solar photovoltaic power system. Phase I: design. Final report, 1 June 1978-28 February 1979

Description: This contract is part of a three phase program to design, fabricate, and operate a solar photovoltaic electric power system with concentrating optics. The system will be located beside a Local Operating Headquarters of the Georgia Power Company in Atlanta, Georgia and will provide part of the power for the on-site load. Fresnel lens concentrators will be used in 2-axis tracking arrays to focus solar energy onto silicon solar cells producing a peak power output of 56 kW. The present contract covers Phase I which has as its objective the complete design of the system and necessary subsystems.
Date: March 30, 1979
Creator: Pittman, P. F.
Partner: UNT Libraries Government Documents Department
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Aquatic Ecological Classification and Evaluation of Streams and Stream Reaches in the Upper Roanoke River Basin, Virginia

Description: The purpose of this study is to "establish a data base and methodology for classifying...the streams of the Roanoke Basin into a hierarchy of ecological systems" and to "establish evaluative criteria and methodology for classifying and ranking streams within the ecological systems relative to their state of environmental quality" (p. R1).
Date: March 30, 1979
Creator: North Texas State University. Institute of Applied Sciences.
Partner: UNT Institute of Applied Sciences
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Chemistry research and development. Progress report, July 1977--May 1978

Description: Studies were continued to determine the compatibility of non-nuclear weapons metals with various production processing materials. The corrosion resistance of 304L stainless steel in mixed acid environment was tested. Intergranular corrosion tests were performed on welded 21-6-9 and 304L stainless steels. A laboratory scale fast fluidized bed incineration system was installed and operating techniques developed. A new uranium chip burning process is being developed. Component development, pilot plant development, and instrumentation and statistical systems development are briefly discussed.
Date: March 30, 1979
Creator: Miner, Frend John
Partner: UNT Libraries Government Documents Department
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Earth Sciences Division, collected abstracts, 1978

Description: Abstracts of papers, internal reports, and talks presented during 1978 at national and international meetings by members of the Earth Sciences Division of the Lawrence Livermore Laboratory are compiled. The arrangement is alphabetical (by author). For any given report, a bibliographic reference appears under the name of each coauthor. A topical index at the end provides useful cross references, while indicating major areas of research interest in the Earth Sciences Division.
Date: March 30, 1979
Creator: Taasevigen, D. K.; Henry, A. L. & Madsen, S. K.
Partner: UNT Libraries Government Documents Department
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Radioactivity in gaseous waste discharged from the separations facilities during 1978. [Rockwell Hanford Operations]

Description: This document is issued quarterly for the purpose of summarizing the radioactive gaseous wastes that are discharged from the facilities of the Rockwell Hanford Operations. Data on alpha and beta emissions during 1978 are presented where relevant to the gaseous effluent. Emission data are not included on gaseous wastes produced within the 200 Areas by other Hanford contractors.
Date: March 30, 1979
Creator: Anderson, J. D. & Poremba, B. E.
Partner: UNT Libraries Government Documents Department
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Trans-Pecos Photovoltaic Concentration Experiment. Final report for Phase-I system design, 6 June 1978-28 February 1979

Description: The Trans-Pecos Photovoltaic Concentrating Experiment is the design of a 200 kWe peak photovoltaic concentrating system applied to deep well irrigation in the Trans-Pecos region of Texas. The site selected is typical of deep well irrigation in arid regions of Texas, New Mexico, and Arizona. The existing well utilizes a 200 horse power, three phase, 480 volt induction motor to lift water 540 feet to irrigate 380 acres. The Trans-Pecos Photovoltaic Concentration (PVC) system employs a two axis (azimuth-elevation) tracking parabolic concentrator module that focuses sunlight at 38X concentration on two strings of actively cooled silicon solar cells. The direct current from a field of 102 collector modules is converted by a maximum power point electric power conditioning system to three phase alternating current. The power from the power conditioning system is connected through appropriate switchgear in parallel with the utility grid to the well's induction motor. The operational philosophy of the experiment is to displace daytime utility power with solar generated electric power. The solar system is sized to provide approximately 50 percent of the 24 hour energy demand of the motor. This requires an energy exchange with the utility since peak solar power (200 kWe) generated exceeds the peak motor demand (149.2 kWe). The annual energy production is projected to be 511 Mwh using El Paso, Texas solar TMY data. System electrical power production efficiency is projected to be 7.4 percent at the design point, and 7.0 percent on an annual electrical energy production basis. The system is projected to provide 37.8 percent of the 24 hour energy demand of the motor at the design point of March 10, excluding energy delivered to the grid in excess of motor demand. The total energy produced is projected to be 39.0 percent of the 24 hour energy demand of the …
Date: March 30, 1979
Creator: Marcy, W.M. & Dudek, R.A.
Partner: UNT Libraries Government Documents Department
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Weldability of Electroformed Nickel

Description: An investigation was conducted to identify the cause of variations in the weldability of electroformed nickel. Evaluation of gas tungsten-arc welds in 0.254-mm-thick electroformed nickel sheet by chemical analyses of the nickel base material identified phosphorus and sulfur contamination as the cause for welding variability. A screening test was developed that predicted the weldability of electroformed nickel.
Date: March 30, 1979
Creator: Frye, L. D.
Partner: UNT Libraries Government Documents Department
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Conversion of cellulosic and waste polymer material to gasoline

Description: The present status and future plans for a project to convert cellulosic (biomass) and waste synthetic polymer materials to quality liquid fuels is presented. A thermal gasification approach is utilized followed by catalytic liquid fuels synthesis steps. Potential products include a medium quality substitute for natural gas or liquid fuel equivalents of diesel fuel, kerosene or high octane gasoline. The process appears very flexible with regard to ability to handle different sources of feedstock. Results to date indicate quality products can be produced. Product yields need to be improved with the main thrust centered on improvement of pyrolysis gas composition. This will be a major effort in the new contract period. Other items to be addressed are study of alternate economic feedstocks, waste stream characterization, and liquid fuels synthesis and tailoring with particular attention on the effects of alternate feedstocks. A description of a proposed 10 ton/day pilot plant is presented with flow sheet, material balance and cost estimates.
Date: March 28, 1979
Creator: Kuester, J.L.
Partner: UNT Libraries Government Documents Department
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Social and economic research program for the Geysers-Calistoga known geothermal resource area

Description: The purpose of this study is to assess the economic and social effects of projected geothermal resource development for both direct use and electric power generation and to analyze local regulatory policy options designed to mitigate adverse effects. The key issues are land use, fiscal and public infrastructure systems, demography, and the local economy. The study has seven elements: a computer-based inventory and analysis of land characteristics, constraints, sensitivity, and suitability for various land uses; projections of direct and electric geothermal development; primary and induced economic activity using an input-output model; demographic changes; the land and infrastructural demand created; an assessment of the economic and social effects of various configurations in land use that could result; and an analysis of various local regulatory policy options to mitigate adverse effects. The study is a cooperative effort among two national laboratories, a regional agency, and the four Geysers-area counties (Lake, Mendocino, Napa, and Sonoma). The assessment results are intended to guide Department of Energy planners on the environmental consequences of program implementation. The regulatory policy analysis is intended for local officials who are implementing development-management policy.
Date: March 27, 1979
Creator: Hall, C. & O'Banion, K.
Partner: UNT Libraries Government Documents Department
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Determination of basalt physical and thermal properties at varying temperatures, pressures, and moisture contents. First progress report, fiscal year 1979

Description: This report is a summary of the rock mechanics testing done at the Earth Mechanics Institute of the Colorado School of Mines for Rockwell Hanford Operations under Subcontract SA-917. Cores were supplied from drill hole DC-6 on the Hanford Site, characterized geologically, and tested for thermal and physical properties for designing long-term underground storage of radioactive waste materials. This report presents the approved test procedures, results, and data analysis for this test series. Results indicated thermophysical properties similar to those of previously tested basalt cores from the Hanford area, but showed no significant trends; thus, generalizations are risky at this time. However, density was found to be a good guide to thermal and physical properties--higher density basalt cores showed significant improvements in physical and thermal properties.
Date: March 26, 1979
Creator: Miller, R. J. & Bishop, R. C.
Partner: UNT Libraries Government Documents Department
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Inference about population attributable risk from cross-sectional studies

Description: The population attributable risk (PAR) is defined as the fraction of all cases of a disease in a population due to exposure to a given risk factor. The data collected in cross-sectional surveys are used to test a formula of standard error of PAR from which a 95% confidence interval for PAR may be deduced.
Date: March 26, 1979
Creator: Fleiss, J.L.
Partner: UNT Libraries Government Documents Department
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LOFT 3C cable tray and ladder seismic analysis

Description: The LOFT 3C cable tray and ladder were analyzed for LOCE and Safe Shutdown Earthquake (SSE) seismic loads by using equivalent static loads. Design changes were recommended to alleviate overstress conditions.
Date: March 26, 1979
Creator: Mosby, W.R.
Partner: UNT Libraries Government Documents Department
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LOFT cis analysis 4''-WH-237-E outside containment penetration S-17B

Description: A stress analysis was performed on the 4''-WH-237-E piping system outside containment penetration S-17B. Deadweight, thermal expansion, and seismic loads were considered. The results indicate that this piping will meet ASME Section III, Class 2 requirements.
Date: March 26, 1979
Creator: Moha, J.E.
Partner: UNT Libraries Government Documents Department
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Radioactive liquid wastes discharged to ground in the 200 Areas during 1978

Description: This document is issued quarterly for the purpose of summarizing the radioactive liquid wastes that have been discharged to the ground in the 200 Areas. In addition to data for 1978, cumulative data since plant startup are presented. Also, in this document is a listing of decayed activity to the various plant sites.
Date: March 26, 1979
Creator: Anderson, J. D. & Poremba, B. E.
Partner: UNT Libraries Government Documents Department
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Regional systems development for geothermal energy resources: Pacific region (California and Hawaii). Task I: implementation plan development, topical report

Description: Eleven implementation plans were prepared. They represent some 21 reservoir-site developments and 48 geothermal power plant developments. The plans consist of three integrated elements: (1) a bar-chart schedule that depicts interdependencies among activities and shows significant milestones on the path from initial exploration to power on-line, (2) task descriptions, and (3) the responsible performers. During the preparation of the implementation plans, the tasks required for resource development at each KGRA were defined on a generalized work breakdown structure (WBS) diagram. A generalized WBS dictionary (task descriptions) was also compiled. In addition, a specific WBS for each KGRA was prepared in a tabular and indented format. The tasks formed the basis for the schedular activities. Institutional responsibilities, based upon the WBS, were identified and are also shown on the tabular WBS. In this manner, implementation plans evolved whose schedular, task, and responsibility elements were integrated with one another. In order to provide logically consistent time estimates, and a reasonable basis for comparison, schedule modules were developed for some recurring activities which are essentially common to all KGRAs. In the preparation of multiple plant schedules for a given KGRA, the interactive effects of power development on the ancillary resources of the area were considered so that interfaces and constraining situations would be identified. Within Imperial County, this process was taken one step further to include the influence that development at the several close-lying KGRAs would have upon one another. A set of recommendations for the accelerated development of geothermal energy resources was prepared and the potential implementors were suggested.
Date: March 26, 1979
Creator: Michler, D. W.
Partner: UNT Libraries Government Documents Department
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Stress analysis of the retaining stud for the ECC rake

Description: A stress analysis of the retaining stud on the ECC Rake has been completed. The analysis considered thermal and mechanical loads that the stud is subjected to during a LOCE. The stud was analyzed to the requirement of Subsection NF of the (1977) ASME Code, Ref. 2. The stud was found to be structurally adequate.
Date: March 26, 1979
Creator: Finicle, D.P.
Partner: UNT Libraries Government Documents Department
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Sodium testing of intermediate-size inducer pump in SPTF at ETEC

Description: The overall test program includes pump assembly, installation, testing, removal from the test loop, disassembly and final inspection of the entire pump. Testing will include checkout tests, head/flow and efficiency characterizations at selected speeds and sodium temperatures, suction performance determination, a 2000 hour design point endurance test, a 300 hour off design endurance test, and thermal transient tests. The pump will be cleaned of sodium, disassembled, and examined before the 2000 hour endurance test and after the thermal transient tests to determine the effects that long-term operation at 200 percent NPSH margin and off design operation at the same flow and NPSH have on the pump components.
Date: March 24, 1979
Creator: Pfouts, J.O.
Partner: UNT Libraries Government Documents Department
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Characterization of DC-S-2000 silicone rubber as an O-ring material for laser amplifier systems

Description: We evaluated mechanical, thermal, thermodynamic, and chemical properties of Dow Corning DC-S-2000, a silicone rubber filled with silica, that was selected as an O-ring material for SHIVA laser amplifiers. We compared the properties of a batch cured in-house with the manufacturer's specifications, and we developed specific quality-control tests to evaluate future production batches of this elastomer. We also examined mechanical and thermal transitions not described in the manufacturer's bulletin. Because the silicone O-rings must function under prolonged compression, we recommend an examination of the compression properties of DC-S-2000.
Date: March 23, 1979
Creator: Hoffman, D.M.
Partner: UNT Libraries Government Documents Department
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