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The Ecology of Stream and Riparian Habitats of the Great Basin Region

Description: "The purpose of this profile is to summarize the ecological information available for and relevant to stream and riparian habitats of the Great Basin. The Great Basin comprises the northern half of the Basin and Range physiographic province and covers most of Nevada and western Utah and portions of California, Oregon, and Idaho. The entire basin actually consists of numerous subbasins and mountain ranges which present an extremely diverse physical setting" (p. iii).
Date: September 1989
Creator: Minshall, G. Wayne; Jensen, Sherman E. & Platts, William S.
Partner: UNT Libraries Government Documents Department

Historic Shipwrecks and Magnetic Anomalies of the Northern Gulf of Mexico: Reevaluation of Archaeological Resource Management Zone 1, Volume 2: Technical Narrative

Description: Second volume of an archaeological study consisting of a technical narrative covering historic shipwrecks and magnetic anomalies in the Gulf of Mexico.
Date: September 1989
Creator: Garrison, Ervan G.; Giammona, Charles P.; Kelly, Frank J.; Tripp, Anthony R. & Wolff, Gary A.
Partner: UNT Libraries Government Documents Department

Historic Shipwrecks and Magnetic Anomalies of the Northern Gulf of Mexico: Reevaluation of Archaeological Resource Management Zone 1, Volume 3: Appendices

Description: Appendices to supplement the reported findings of an archaeological study of historic shipwrecks and magnetic anomalies in the Gulf of Mexico. It includes lists of historic information and maps as well as collected data.
Date: September 1989
Creator: Garrison, Ervan G.; Giammona, Charles P.; Kelly, Frank J.; Tripp, Anthony R. & Wolff, Gary A.
Partner: UNT Libraries Government Documents Department

Design and Structural Analysis of Mars Rover RTG

Description: The paper describes the design and the structural and mass analysis of a Radioisotope Thermoelectric Generators (RTGs) for powering the MARS Rover vehicle, which is a critical element of the unmanned Mars Rover and Sample Return mission (MRSR). The RTG design study was conducted by Fairchild Space Company for the U.S. Department of Energy, in support of the Jet Propulsion Laboratory's MRSR project.; The paper briefly describes a reference mission scenario, an illustrative Rover design and activity pattern on Mars, and its power system requirements and environmental constraints, including the RTG cooling requirements during transit to Mars. It identifies the key RTG design problem, i.e. venting the helium generated by the fuel's alpha decay without intrusion of the Martian atmosphere into the RTG, and proposes a design approach for solving that problem.; Using that approach, it describes a very conservative baseline RTG design. The design is based on the proven and safety-qualified General Purpose Heat Source module, and employs standard thermoelectric unicouples whose reliability and performance stability has been extensively demonstrated on previous space missions. The heat source of the 250-watt RTG consists of a stack of 18 separate modules that is supported at its ends but not along its length. The paper describes and analyzes the structure that holds the stack together during Earth launch and Mars operations but allows it to come apart in case of an inadvertent reentry.; A companion paper presented at this conference describes the RTG's thermal and electrical analysis, and compares its performance with that of several lighter but less conservative design options.; There is a duplicate copy in the ESD files. This document is not relevent to OSTI Library. Do not send.
Date: September 29, 1989
Creator: Schock, Alfred; Hamrick, T.; Sankarankandath, V. & Shirbacheh, M.
Partner: UNT Libraries Government Documents Department

Thermal and Electrical Analysis of MARS Rover RTG, and Performance Comparison of Alternative Design Options.

Description: The paper describes the thermal, thermoelectric and electrical analysis of Radioisotope Thermoelectric Generators (RTGs) for powering the MARS Rover vehicle, which is a critical element of the unmanned Mars Rover and Sample Return mission (MRSR). The work described was part of an RTG design study conducted by Fairchild Space Company for the U.S. Department of Energy, in support of the Jet Propulsion Laboratory's MRSR Project.; A companion paper presented at this conference described a reference mission scenario, al illustrative Rover design and activity pattern on Mars, its power system requirements and environmental constraints, a design approach enabling RTG operation in the Martian atmosphere, and the design and the structural and mass analysis of a conservative baseline RTG employing safety-qualified heat source modules and reliability-proven thermoelectric converter elements.; The present paper presents a detailed description of the baseline RTG's thermal, thermoelectric, and electrical analysis. It examines the effect of different operating conditions (beginning versus end of mission, water-cooled versus radiation-cooled, summer day versus winter night) on the RTG's performance. Finally, the paper describes and analyzes a number of alternative RTG designs, to determine the effect of different power levels (250W versus 125W), different thermoelectric element designs (standard versus short unicouples versus multicouples) and different thermoelectric figures of merit (0.00058K(superscript -1) to 0.000140K (superscript -1) on the RTG's specific power.; The results presented show the RTG performance achievable with current technology, and the performance improvements that would be achievable with various technology developments. It provides a basis for selecting the optimum strategy for meeting the Mars Rover design goals with minimal programmatic risk and cost.; There is a duplicate copy and also a duplicate copy in the ESD files.
Date: September 29, 1989
Creator: Schock, Alfred; Or, Chuen T & Skrabek, Emanuel A
Partner: UNT Libraries Government Documents Department

TFE Verification Program: Semiannual report for the period ending April 30, 1989

Description: The objective of the semiannual progress report is to summarize the technical results obtained during the latest reporting period. The information presented herein will include evaluated test data, design evaluations, the results of analyses and the significance of results. The program objective is to demonstrate the technology readiness of a TFE suitable for use as the basic element in a thermionic reactor with electric power output in the 0.5 to 5.0 MW(e) range, and a full-power life of 7 years. 55 figs., 30 tabs.
Date: September 1, 1989
Partner: UNT Libraries Government Documents Department

Environment, safety and health compliance assessment, Feed Materials Production Center, Fernald, Ohio

Description: The Secretary of Energy established independent Tiger Teams to conduct environment, safety, and health (ES H) compliance assessments at US Department of Energy (DOE) facilities. This report presents the assessment of the Feed Materials Production Center (FMPC) at Fernald, Ohio. The purpose of the assessment at FMPC is to provide the Secretary with information regarding current ES H compliance status, specific ES H noncompliance items, evaluation of the adequacy of the ES H organizations and resources (DOE and contractor), and root causes for noncompliance items. Areas reviewed included performance under Federal, state, and local agreements and permits; compliance with Federal, state and DOE orders and requirements; adequacy of operations and other site activities, such as training, procedures, document control, quality assurance, and emergency preparedness; and management and staff, including resources, planning, and interactions with outside agencies.
Date: September 1, 1989
Partner: UNT Libraries Government Documents Department

Effects of crack geometry and material behavior on scattering by cracks for QNDE applications

Description: In work carried out on this project, the usual mathematical modeling of ultrasonic wave scattering by flaws is being extended to account for several typical characteristics of fatigue and stress-corrosion cracks, and the environment of such cracks. Work has been completed on scattering by macrocrack-microcrack configurations. We have also investigated reflection and transmission by a flaw plane consisting of an infinite array of randomly oriented cracks. In another investigation the propagation of mechanical disturbances in solids with periodically distributed cracks has been studied.
Date: September 15, 1989
Creator: Achenbach, J.D.
Partner: UNT Libraries Government Documents Department

Censuses and Interatoll Movements of the Hawaiian Monk Seal on Laysan Island, 1985

Description: Abstract: Research on the Laysan Island population of the endangered Hawaiian monk seal, Monachus schauinslandi, was conducted from 2 march to 30 November 1985. census totals excluding pups ranged from 76 to 147, an average increase of nearly 20 animals from the 1984 census results. Overall monthly haul-out distribution for all seals showed highest use in the north ecological unit followed by the west unit. Relatively few animals hauled out in the eastern and southern portions of the island. Interatoll movement of nine seals was documented, resulting in a net increase of three animals to the Laysan Island population.
Date: September 1989
Creator: Becker, Brenda L.; Morrow, Robert J. & Leialoha, Julia K.
Partner: UNT Libraries Government Documents Department

Environmental assessment of remedial action at the inactive uraniferous lignite processing sites at Belfield and Bowman, North Dakota. [UMTRA Project]

Description: The Uranium Mill Tailings Radiation Control Act of 1978 (UMTRCA), to clean up the Belfield and Bowman, North Dakota, uraniferous lignite processing sites to reduce the potential health impacts associated with the residual radioactive materials remaining at these sites. Remedial action at these sites must be performed in accordance with the US Environmental Protection Agency's (EPA) standards promulgated for the remedial action and with the concurrence of the US Nuclear Regulatory Commission (NRC) and the state of North Dakota. The inactive Belfield uraniferous lignite processing site is one mile southeast of Belfield, North Dakota. The inactive Bowman uraniferous lignite processing site at the former town of Griffin, is seven miles northwest of Bowman, North Dakota and 65 road miles south of Belfield. Lignite ash from the processing operations has contaminated the soils over the entire 10.7-acre designated Belfield site and the entire 12.1-acre designated Bowman site. Dispersion of the ash has contaminated an additional 20.6 acres surrounding the Belfield processing site and an additional 59.2 acres surrounding the Bowman processing site. The proposed remedial action is to relocate the contaminated materials at the Belfield processing site to the Bowman processing/disposal site for codisposal with the Bowman contaminated soils. The environmental impacts assessed in this EA were evaluated for the proposed remedial action and the no action alternative and demonstrate that the proposed action would not significantly affect the quality of the human environment and would be performed in compliance with applicable environmental laws. The no action alternative would not be consistent with the intent of Public Law 95-604 and would not comply with the EPA standards. 48 refs., 10 figs., 7 tabs.
Date: September 1, 1989
Creator: Beranich, S.; Berger, N.; Bierley, D.; Bond, T.M.; Burt, C.; Caldwell, J.A. et al.
Partner: UNT Libraries Government Documents Department

Transport properties of multi-component fluids and of suspensions

Description: This report describes work performed under grant No. DE-FG03-88ER13911 for the period June 15, 1988 through June 14, 1989. During this time, significant progress was made in the derivation of the fundamental equations describing suspensions and multicomponent fluid flow. We first considered a system consisting of spherical heavy (Brownian) particles immersed in a bath of spherical particles. The deviations of the bath from equilibrium are due to the nonequilibrium motions of the Brownian particles. The densities of the bath and of a Brownian particle are similar. An expansion in powers of the mass ratio, yields a Fokker-Planck equation for the distribution function of the Brownian particles, including the effects of direct and hydrodynamic interactions amongst these particles. The effect of the Brownian particle motion on the bath properties has been described. The conditions under which a closed equation for the coordinate space distribution function, can be obtained have been investigated and a Smoluchowski equation for this quantity has been derived.
Date: September 15, 1989
Creator: Oppenheim, I. & McBride, J.
Partner: UNT Libraries Government Documents Department

High-resolution PET (positron emission tomography) for medical science studies

Description: One of the unexpected fruits of basic physics research and the computer revolution is the noninvasive imaging power available to today's physician. Technologies that were strictly the province of research scientists only a decade or two ago now serve as the foundations for such standard diagnostic tools as x-ray computer tomography (CT), magnetic resonance imaging (MRI), magnetic resonance spectroscopy (MRS), ultrasound, single photon emission computed tomography (SPECT), and positron emission tomography (PET). Furthermore, prompted by the needs of both the practicing physician and the clinical researcher, efforts to improve these technologies continue. This booklet endeavors to describe the advantages of achieving high resolution in PET imaging. 6 refs., 21 figs.
Date: September 1, 1989
Creator: Budinger, T.F.; Derenzo, S.E.; Huesman, R.H.; Jagust, W.J. & Valk, P.E. (Lawrence Berkeley Lab., CA (USA))
Partner: UNT Libraries Government Documents Department

Introductory testimony

Description: This report covers the uses of nuclear power in space. Various systems are discussed and an outline of a slide presentation is given. The testing and safety of these programs is also briefly mentioned. (JEF)
Date: September 1, 1989
Creator: Nolan, J. (Westinghouse Hanford Co., Richland, WA (USA))
Partner: UNT Libraries Government Documents Department

Analysis of emplacement borehole rock and liner behavior for a repository at Yucca Mountain

Description: This report presents the results of studies aimed at assessing the quasi-static behavior of both the rock surrounding an emplacement borehole and the lining within an emplacement borehole for a nuclear waste repository in tuff. Two-dimensional thermomechanical analyses of conditions similar to those representative of the horizontal emplacement option were performed using a distinct element code. Three different behavior models (equivalent continuum, wedge, and parallel joint) were used to investigate the state of deformation at 0 and 100 years following waste emplacement. Three different rock strength assumptions were studied corresponding to ``design,`` ``recommended`` and ``limit`` values given in the Nevada Nuclear Waste Storage Investigation (NNWSI) Project Site Characterization Plan Conceptual Design Report (MacDougall et al., 1987). The ground reaction curve concept is introduced to study the potential liner loading resulting from thermally induced borehole closure. The report concludes that for the conditions and parameters assumed, liners may not be significantly loaded by borehole closure, because predicted closures will likely be less than tolerances required to install the lining. The report also concludes that gravity loading of linings by blocks which fall from the surrounding rock should not over-stress the lining. 25 refs., 51 figs., 14 tabs.
Date: September 1, 1989
Creator: Lorig, L. J. & Dasgupta, B.
Partner: UNT Libraries Government Documents Department

PAN-EARTH Sub-Saharan Africa Workshop Report

Description: Report on the PAN-EARTH Sub-Saharan Africa Workshop. This workshop focused on the effects of global climate changes on the agriculture and ecology of the countries of sub-Saharan Africa.
Date: September 1989
Creator: Bezuneh, Taye; Harwell, Mark A.; Menyonga, Joseph Mufu; Acevedo, Miguel F.; Ackerman, Thomas P.; Aho, Nestor et al.
Partner: UNT College of Engineering

Technical support documentation for the Automated Residential Energy Standard (ARES) data base in support of proposed interim energy conservation voluntary performance standards for new non-federal residential buildings: Volume 4

Description: This report focuses on those areas where substantial improvements have been made in simulation techniques or analysis of results concerning the Automated Residential Energy Standard (ARES).
Date: September 1, 1989
Partner: UNT Libraries Government Documents Department

Background to the development process, Automated Residential Energy Standard (ARES) in support of proposed interim energy conservation voluntary performance standards for new non-federal residential buildings: Volume 3

Description: This report documents the development and testing of a set of recommendations generated to serve as a primary basis for the Congressionally-mandated residential standard. This report treats only the residential building recommendations.
Date: September 1, 1989
Partner: UNT Libraries Government Documents Department

DEWFALL validation experiment designs

Description: Three experiments are proposed as tests to validate the DEWFALL analysis model for the large vessel project. This document is a very brief record of the techniques and test designs that could be used for validation of the model. Processes of the model which require validation include: (1) vaporization and recondensation of the vessel wall material due to energy transfer from the source, (2) melt and refreeze of vessel wall material, and (3) condensation and solidification of the source material. A methodology was developed to analyze the maximum thickness of material melted and vaporized with given experimental configurations and initial energies. DEWFALL reference calculations are included in an appendix to the document. 2 refs., 3 figs., 3 tabs.
Date: September 30, 1989
Creator: Lowry, B. & Walsh, B.
Partner: UNT Libraries Government Documents Department

Technical support documentation for the Automated Residential Energy Standard (ARES) in support of proposed interim energy conservation voluntary performance standards for new non-federal residential buildings: Volume 2

Description: The Automated Residential Energy Standard (ARES) program is designed to identify levels of thermal integrity (e.g., insulation levels, glazing layers, equipment efficiencies, etc.) that are cost effective for typical residential structures and to create a residential energy standard based on these levels. This document contains technical background the explains the data and the algorithms used by the program.
Date: September 1, 1989
Partner: UNT Libraries Government Documents Department

Operating procedure for SiC defect detection: Data support document

Description: The feasibility of the Hg Intrusion QC method for measuring SiC coating defects for the MHTGR was conducted as a potential improvement for the Burn/Leach (B/L) QC method currently used. The purpose for evaluating the Hg Intrusion QC method as an alternative method was to determine if B/L QC method underestimated SiC coating defects. Some evidence in work conducted earlier, indicated that TRISO-coated fuel particles with low SiC coating defects measured by the B/L QC method showed higher releases of metallic fission products. These data indicated that the SiC coating defect fractions were higher than the B/L measured data indicated. Sample sizes used in the current study were too small to conclusively demonstrate that the B/L QC method under estimate SiC coating defects. However, observations made during this study indicated a need for an additional QC method to the B/L QC method to measure SiC coating defects for the higher quality MHTGR fuels. The B/L QC method is the best method for measuring SiC coating defects with missing SiC layers or broken SiC coatings (gross SiC defects). However, SiC coating defects with microcracks and other SiC defects not detected by the B/L method may contribute to the release of metallic fission products in-service. For these type of SiC coating defects, the Hg Intrusion QC method investigated in this study is feasible, but particle sample size should be increased to a much larger sample size (100,000 particles per test) for the MHTGR. 7 refs., 5 figs., 9 tabs.
Date: September 29, 1989
Creator: Adams, C. C. & Partain, K. E.
Partner: UNT Libraries Government Documents Department