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399
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260
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66
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15,492 Matching Results
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Research, development and demonstration of a fuel cell/battery powered bus system. Phase 1, Final report
Purpose of the Phase I effort was to demonstrate feasibility of the fuel cell/battery system for powering a small bus (under 30 ft or 9 m) on an urban bus route. A brassboard powerplant was specified, designed, fabricated, and tested to demonstrate feasibility in the laboratory. The proof-of-concept bus, with a powerplant scaled up from the brassboard, will be demonstrated under Phase II.
Date:
February 28, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
(Research in theoretical nuclear physics)
This report discusses the following topics: neutron starts, pulsars, and dense baryonic matter, intermittency and other correlations; fractional statistics; and electroweak theory.
Date:
January 1, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
[Research in two-dimensional critical phenomena and conformal field theory]. Final report
A very theoretical description is given of research in two- dimensional critical phenomena and conformal field theory. Major progress is reported in the field of fluctuating two-dimensional surfaces. A discretized representation of fluctuating geometry is used where surfaces are represented by triangulations; continuum surfaces are recovered by taking the size of the triangles to zero. One of the central goals of the theory of critical phenomena is to find all possible universality classes of n-dimensional critical phenomena; this goal has been translated into the problem of clasifying all possible scale-invariant euclidean quantum field theories. (RWR)
Date:
December 31, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
[Research in two-dimensional critical phenomena and conformal field theory]. [Rutgers, The State Univ. , New Brunswick, New Jersey]
A very theoretical description is given of research in two- dimensional critical phenomena and conformal field theory. Major progress is reported in the field of fluctuating two-dimensional surfaces. A discretized representation of fluctuating geometry is used where surfaces are represented by triangulations; continuum surfaces are recovered by taking the size of the triangles to zero. One of the central goals of the theory of critical phenomena is to find all possible universality classes of n-dimensional critical phenomena; this goal has been translated into the problem of clasifying all possible scale-invariant euclidean quantum field theories. (RWR)
Date:
January 1, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Resource Conservation and Recovery Act, Part B Permit Application [of the Waste Isolation Pilot Plant (WIPP)]. Volume 2, Revision 1.0
This report, Part B ( Vol. 2) of the permit application for the WIPP facility, contains information related to the WIPP site on hydrology, geology, maps, and rock salt properties.
Date:
December 31, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
RETRAN-02 installation and verification for the CRAY computer
The RETRAN-02 transient thermal-hydraulic analysis program developed by the Electric Power Research Institute (EPRI) has been selected as a tool for use in assessing the operation and safety of the SP-100 space reactor system being developed at Los Alamos National Laboratory (LANL). The released versions of RETRAN-02 are not operational on CRAY computer systems which are the primary mainframes in use at LANL requiring that the code be converted to the CRAY system. This document describes the code conversion, installation, and validation of the RETRAN-02/MOD004 code on the LANL CRAY computer system.
Date:
March 1, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Reversed Field Pinch Studies
In this paper we synopsize the status of the engineering operation of MST, plasma parameters, and fluctuation studies. Somewhat more detail on the machine design is reported in Appendix A, initial results through November 1989 are reported in Appendix B, and information on diagnostic status is reported in Chapter VI.
Date:
November 23, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Review of cost estimates for reducing CO2 emissions. Final report, Task 9
Since the ground breaking work of William Nordhaus in 1977, cost estimates for reducing CO{sub 2} emissions have been developed by numerous groups. The various studies have reported sometimes widely divergent cost estimates for reducing CO{sub 2} emissions. Some recent analyses have indicated that large reductions in CO{sub 2} emissions could be achieved at zero or negative costs (e.g. Rocky Mountain Institute 1989). In contrast, a recent study by Alan Manne of Stanford and Richard Richels of the Electric Power Research Institute (Manne-Richels 1989) concluded that in the US the total discounted costs of reducing CO{sub 2} emissions by 20 percent below the 1990 level could be as much as 3.6 trillion dollars over the period from 1990 to 2100. Costs of this order of magnitude would represent about 5 percent of US GNP. The purpose of this briefing paper is to summarize the different cost estimates for CO{sub 2} emission reduction and to identify the key issues and assumptions that underlie these cost estimates.
Date:
October 1, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
(The Role of Natural Organic Matter in the Partitioning and Transport of Polynuclear Aromatic Hydrocarbons in Groundwater)
A general summary of our progress associated with batch and column experiments is included in this report. During the period of July 1, 1989 through the present, we have emphasized batch experiments to study the partitioning between one PAH, phenanthrene, and each of two sources of groundwater natural organic matter (NOM) in the presence and absence of a model mineral surface (a-Al{sub 2}O{sub 3}). The behavior of a soil-derived fulvic acid sorbed to the mineral surface has also been investigated. The NOM sources were used as bulk'' (unfractionated) and fractionated into different molecular weight (MW) fractions by ultrafiltration (UF), and into humic and non-humic fractions by XAD-8 resin adsorption. Three techniques have been evaluated for differentiating between aqueous PAH and NOM-bound PAH: fluorescence quenching (FQ), reverse phase (Sep-Pak) separations, and dialysis bags. We have conducted batch experiments to study the three binary systems; PAH-NOM, PAH-a-Al{sub 2}O{sub 3}, and NOM-a-Al{sub 2}O{sub 3}; and the ternary system, PAH-NOM-a-Al{sub 2}O{sub 3}. Sorption of NOM onto a mineral surface, alumina, has been evaluated from the perspective of providing a model of soil organic matter.
Date:
January 1, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The role of nuclear weapons in the year 2000
This publication presents the proceedings for the workshop, The Role of Nuclear Weapons in the Year 2000, held on October 22--24, 1990. The workshop participants considered the changing nature of deterrence and of our strategic relationship with the Soviet Union, the impact of nuclear proliferation on regional conflicts, and ways that the nuclear forces might be restructured to reflect new political circumstances.
Date:
January 1, 1990
Creator:
unknown
Object Type:
Article
System:
The UNT Digital Library
Savannah River Site peer evaluator standards: Operator assessment for restart
Savannah River Site has implemented a Peer Evaluator program for the assessment of certified Central Control Room Operators, Central Control Room Supervisors and Shift Technical Engineers prior to restart. This program is modeled after the nuclear Regulatory Commission's (NRC's) Examiner Standard, ES-601, for the requalification of licensed operators in the commercial utility industry. It has been tailored to reflect the unique differences between Savannah River production reactors and commercial power reactors.
Date:
June 1, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Savannah River Site peer evaluator standards: Operator assessment for restart
Savannah River Site has implemented a Peer Evaluator program for the assessment of certified Central Control Room Operators, Central Control Room Supervisors and Shift Technical Engineers prior to restart. This program is modeled after the nuclear Regulatory Commission`s (NRC`s) Examiner Standard, ES-601, for the requalification of licensed operators in the commercial utility industry. It has been tailored to reflect the unique differences between Savannah River production reactors and commercial power reactors.
Date:
June 1, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Savannah River Site Probabilistic Risk Assessment high-level review
A review of the Savannah River Site (SRS) Probabilistic Risk Assessment (PRA) has been performed by a review committee organized by the US Department of Energy (DOE) and its contractor, EG&G Idaho, Inc. The High-Level Peer Review Committee (referred to as ``the Committee`` in this report) members are identified in Section 2. The main purpose of the review has been to provide assurance that the SRS PRA is responsive to safety issues associated with the restart and continued operation of the Savannah River reactors. The Committee members are all experienced practitioners of PRA, and several of the members have been deeply involved In a concurrent, detailed review of the SRS PRA. Source material and expertise available to the Committee included the SRS PRA document itself issued August 31. 1989, and Interaction with key PRA and plant experts at both the Savannah River Site and the Los Alamos National Laboratory (LANL), who had performed an independent PRA evaluation of the SRS K-reactor. The cooperation and support received from those connected with the review were outstanding.
Date:
February 1, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The Savannah River Site`s Groundwater Monitoring Program. First quarter, 1990
This report summarizes the Savannah River Site (SRS) groundwater monitoring program conducted in the first quarter of 1990. It includes the analytical data, field data, well activity data, and the other documentation for this program and provides a record of the program`s activities and rationale and an official document of the analytical results. The groundwater monitoring program includes the following activities: installation, maintenance, and abandonment of monitoring wells, environmental soil borings, development of the sampling and analytical schedule, collection and analyses of groundwater samples, review of the analytical data and other data, maintenance of the databases containing groundwater monitoring data and related data, quality assurance (QA) evaluations of laboratory performance, and reports of results to waste-site facility custodians and to the Environmental Protection Section (EPS) of EPD.
Date:
October 18, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The Savannah River Site's Groundwater Monitoring Program
This report summarizes the Savannah River Site (SRS) groundwater monitoring program conducted in the first quarter of 1990. It includes the analytical data, field data, well activity data, and the other documentation for this program and provides a record of the program's activities and rationale and an official document of the analytical results. The groundwater monitoring program includes the following activities: installation, maintenance, and abandonment of monitoring wells, environmental soil borings, development of the sampling and analytical schedule, collection and analyses of groundwater samples, review of the analytical data and other data, maintenance of the databases containing groundwater monitoring data and related data, quality assurance (QA) evaluations of laboratory performance, and reports of results to waste-site facility custodians and to the Environmental Protection Section (EPS) of EPD.
Date:
October 18, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Screening level characterization of electrical Substation 411
Substation 411 transformer dielectric fluids were sampled for uranium and PCBs. The exterior surfaces of the metal transformers were measured for radioactivity. Results of the sampling revealed that some transformer fluid contained PCBs, but no uranium in excess of naturally occurring amounts was detected. In addition, the exterior surface of the transformers were uncontaminated. Subject to measurement of the base of the transformers (which were inaccessible during the surface scans for radioactivity), the transformers and dielectric fluids may be removed from the site for disposal. Two appendices are included: (a) a sampling plan, and (b) soil lab reports.
Date:
November 1, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Sealed Bid Lease Auction of Mother Earth Industries, Inc.; Geothermal Lease Holdings Located at Cove Fort - Sulphurdale, Utah
None
Date:
October 15, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Security training symposium: Meeting the challenge: Firearms and explosives recognition and detection
These conference proceedings have been prepared in support of the US Nuclear Regulatory Commission's Security Training Symposium on Meeting the Challenge -- Firearms and Explosives Recognition and Detection,'' November 28 through 30, 1989, in Bethesda, Maryland. This document contains the edited transcripts of the guest speakers. It also contains some of the speakers' formal papers that were distributed and some of the slides that were shown at the symposium (Appendix A).
Date:
September 1, 1990
Creator:
unknown
Object Type:
Article
System:
The UNT Digital Library
Seminoe-Kortes transmission line/substation consolidation project, Carbon County, Wyoming
The existing switchyards at Western Area Power Administration's (WESTERN) Seminoe and Kortes facilities, located approximately 40 miles northeast of Rawlines, Carbon County, Wyoming, were constructed in 1939 and 1951, respectively. The circuit breakers at these facilities are beyond or approaching their service life and need to be replaced. In addition, the switchyards have poor access for maintenance and replacement of equipment, and their locations create potential for oil spills into the North Platte River. WESTERN is proposing to consolidate the switchyard facilities into one new substation to provide easier access, restore proper levels of system reliability, and decrease the potential for oil contamination of the river. This environmental assessment (EA) was prepared to evaluate the impacts of the proposed Seminoe-Kortes Consolidation Project. 57 refs., 12 figs., 8 tabs.
Date:
July 1, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
SERI Photovoltaic Subcontract Reports: 1988 Abstracts and Document Control Information
This report contains the document control information and abstracts for SERI Photovoltaic (PV) Program Branch publications resulting from SERI's subcontracted PV research. The information is presented for reports published or distributed during fiscal year (FY) 1988.
Date:
June 1, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Seventh BES (Basic Energy Sciences) catalysis and surface chemistry research conference
Research programs on catalysis and surface chemistry are presented. A total of fifty-seven topics are included. Areas of research include heterogeneous catalysis; catalysis in hydrogenation, desulfurization, gasification, and redox reactions; studies of surface properties and surface active sites; catalyst supports; chemical activation, deactivation; selectivity, chemical preparation; molecular structure studies; sorption and dissociation. Individual projects are processed separately for the data bases. (CBS)
Date:
March 1, 1990
Creator:
unknown
Object Type:
Article
System:
The UNT Digital Library
Short-term energy outlook
The Energy Information Administration (EIA) presents future scenarios of quarterly short-term energy supply, demand, and prices for publication in February, May, August, and November in the Short-Term Energy Outlook (Outlook). An annual supplement analyzes previous estimate errors, compares recent scenarios with those of other forecasting services, and discusses current topics of the short-term energy markets. (See Short-Term Energy Outlook: Annual Supplement, DOE/EIA-0202.) The principal users of the Outlook are managers and energy analysts in private industry and government. The scenario period for this issue of the Outlook extends from the fourth quarter of 1990 through the fourth quarter of 1991. Some data for the third quarter of 1990 are preliminary EIA estimates of actual data (for example, some petroleum estimates are based on statistics from the Weekly Petroleum Status Report) or are derived from internal model simulations using the latest exogenous information available (for example, some electricity demand estimates are based on recent weather data). 11 figs., 13 tabs.
Date:
November 7, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Short wavelength chemical laser demonstration based on N({sup 2}D) chemistry. Final technical report
The overall goal of this project was to demonstrate lasing on the NCl(b{yields}x) transition at 665 nm. Our scheme is based on chemical production of excited nitrogen atoms in the {sup 2}D metastable state and subsequent reaction of N({sup 2}D) with Cl{sub 2} to produce NCl(b). Our intermediate objectives were: (1) demonstrate chemical generation of N({sup 2}D), (2) identify and measure rate constants important to the chemical scheme, and (3) demonstrate production of NCl(b) from the N({sup 2}D) + Cl{sub 2} reaction. The program results and accomplishments are summarized in this report.
Date:
January 19, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
(Simulations of biomolecular dynamics)
The basic objective of the research supported by the Department of Energy grant has been to increase our understanding of and predictive ability for macromolecular systems (proteins, nucleic acids, etc.) of biological interest. For this purpose a wide range of large-scale simulations were made. They are concerned with equilibrium and non-equilibrium phenomena on time scales of up to a nanosecond for isolated macromolecules and macromolecules in solution. As a result of such simulations, a fundamental increase in our knowledge of the dynamical and thermodynamic properties and functions of such macromolecules, as well as more complex assemblies of biological interest has been achieved. Of particular interest are simulations of protein folding and the prediction of structural and thermodynamic changes in proteins and protein-liganded interactions induced by site-directed mutagenesis. Recent advances in computational techniques, including simulation methods for free energy changes, have been used for determining how to modify existing proteins to introduce altered properties. A molecular dynamics simulation method has been used for determining the contributions of individual amino acid residues and solvent molecules to free energy changes in proteins. A method was developed for protein secondary structure prediction based a neural network and molecular dynamics simulations were used to calculate …
Date:
January 1, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library