3,661 Matching Results

Results open in a new window/tab.

Application to ship nonmixed transuranic waste to the Nevada Test Site for interim storage. Waste Cerification Program (open access)

Application to ship nonmixed transuranic waste to the Nevada Test Site for interim storage. Waste Cerification Program

This report documents various regulations on radioactive waste processing and discusses how the Waste Isolation Pilot Plant will comply with and meet these requirements. Specific procedures are discussed concerning transuranic, metal scrap, salt block, solid, and glove box wastes.
Date: December 1, 1993
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Applications of the Long-Range Alpha Detector (LRAD) technology to low-level radioactive waste management (open access)

Applications of the Long-Range Alpha Detector (LRAD) technology to low-level radioactive waste management

Long-Range Alpha Detector (LRAD) systems are designed to monitor alpha contamination by measuring the number of ions in the air. Alpha particles are a form of ionizing radiation and a typical 5-MeV alpha particle will create about 150,000 ion pairs in air. Field tests at various DOE sites have shown that LRAD Surface Soil Monitors (SSM), Sample Monitors, and Object Monitors are faster and more sensitive than traditional alpha detectors for measuring alpha contamination. This paper discusses the various applications of LRAD technology to low-level radioactive waste management.
Date: December 1, 1993
Creator: Johnson, J. D.; Allander, K. S.; Bounds, J. A.; Garner, S. E.; Johnson, J. P. & MacArthur, D. W.
Object Type: Article
System: The UNT Digital Library
Applied Analysis/Computational Mathematics. Final report 1993 (open access)

Applied Analysis/Computational Mathematics. Final report 1993

This is the final report for the Courant Mathematics and Computing Laboratory (CMCL) research program for the years 1991--1993. Our research efforts encompass the formulation of physical problems in terms of mathematical models (both old and new), the mathematical analysis of such models, and their numerical resolution. This last step involves the development and implementation of efficient methods for large scale computation. Our analytic and numerical work often go hand in hand; new theoretical approaches often have numerical counterparts, while numerical experimentation often suggests avenues for analytical investigation.
Date: December 1, 1993
Creator: Lax, Peter & Berger, Marsha
Object Type: Report
System: The UNT Digital Library
Applied Physical Chemistry Progress Report, October 1991 - September 1992 (open access)

Applied Physical Chemistry Progress Report, October 1991 - September 1992

This document reports on the work done in applied physical chemistry at the Chemical Technology Division (CMT), Argonne National Laboratory (ANL), in the period October 1991 through September 1992. this work includes research into the process that control the release and transport of fission products under accident-like conditions in a light water reactor, the thermophysical properties of the metal fuel in the Integral Fast Reactor under development at ANL, and the properties of candidate tritium breeding materials in environments simulating those of fusion energy systems.
Date: December 1993
Creator: Johnson, C. E.
Object Type: Report
System: The UNT Digital Library
Applied physical chemistry progress report, October 1991--September 1992 (open access)

Applied physical chemistry progress report, October 1991--September 1992

This document reports on the work done in applied physical chemistry at the Chemical Technology Division (CMT), Argonne National Laboratory (ANL), in the period October 1991 through September 1992. this work includes research into the process that control the release and transport of fission products under accident-like conditions in a light water reactor, the thermophysical properties of the metal fuel in the Integral Fast Reactor under development at ANL, and the properties of candidate tritium breeding materials in environments simulating those of fusion energy systems. Viscosity and liquidus-solidus temperatures of core-concrete mixtures were studied.
Date: December 1, 1993
Creator: Johnson, C. E.; Attaya, H. M.; Billone, M. C.; Blomquist, R. A.; Kopasz, J. P.; Leibowitz, L. et al.
Object Type: Report
System: The UNT Digital Library
Applied research and development private sector accomplishments. Final summary report (open access)

Applied research and development private sector accomplishments. Final summary report

Because of the nature of most US Department of Energy (DOE) operations, contamination at DOE sites presents complex problems. DOE sites may have radioactive, hazardous, or mixed contamination. The major contaminants include radionuclides, volatile organic compounds (VOCs), and heavy metals. The contamination exists in soils, groundwater, and buildings and materials. DOE`s special problems in site remediation have created a need for better and less costly technologies. Thus, DOE has implemented several initiatives for developing new technologies. This report describes the results of the first set of procurement contracts in this area. Similar research and development (R&D) activities are currently managed for DOE by the Morgantown Energy Technology Center.
Date: December 1, 1993
Creator: Beskid, N. J.; Devgun, J. S.; Zielke, M. M. & Erickson, M. D.
Object Type: Report
System: The UNT Digital Library
An April 1991 outburst from 4U0115+63 observed by BATSE (open access)

An April 1991 outburst from 4U0115+63 observed by BATSE

4U0115+63 is a recurrent transient X-ray pulsar in a moderately eccentric orbit with a Be star companion, V635 Cas. Many outbursts from this system have been reported over the past twenty years; yet despite the apparent relation between optical outbursts from the companion star and subsequent X-ray transient events, the physical mechanism for the mass transfer in the system remains unclear. In this paper, the authors present the preliminary results of analysis of observations made using BATSE during the 1991 April outburst from this system. This outburst does not fit the pattern of three year recurrence intervals previously suggested by Whitlock, Roussel-Dupre and Priedhorsky (1989). The orbital elements of the system have been updated and do not support the claim of Tamura et al., (1992) that apsidal motion was detected in this system based on the 1990 Ginga outburst.
Date: December 1, 1993
Creator: Cominsky, L.; Roberts, M. & Finger, M. H.
Object Type: Report
System: The UNT Digital Library
Area 5 Site Characterization Project: Report of hydraulic property analysis through August 1993 (open access)

Area 5 Site Characterization Project: Report of hydraulic property analysis through August 1993

The Area 5 Site Characterization Project is designed to determine the suitability of the Radioactive Waste Management Site (RWMS) for disposal of low-level waste (LLW), mixed waste (MW) and transuranic waste (TRU). The Desert Research Institute (DRI) has supported the Area 5 Site Characterization Project for the US Department of Energy, Nevada Operations Office (DOE/NV), Environmental Restoration and Waste Management Division (ERWM), Waste Operations Branch (WOB). The purpose of DRI`s Area 5 Site Characterization project is to characterize important properties of the upper vadose zone which influence infiltration and redistribution of water and transport of solutes as well as to characterize the water quality and hydrologic conditions of the uppermost aquifer. This report describes methods and presents a summary of all data and results from laboratory physical and chemical testing from Pilot Wells and Science Trench borehole samples through August 1993. DRI laboratories performed soil water content, soil water potential, soil bulk density, soil water extract isotope analyses and soil water chemistry analyses.
Date: December 1, 1993
Creator: Estrella, R.; Tyler, S.; Chapman, J. & Miller, M.
Object Type: Report
System: The UNT Digital Library
Argon frost continuous cryopump for fusion applications (open access)

Argon frost continuous cryopump for fusion applications

A cryopumping system based on the snail continuous cryopump concept is being developed for fusion applications under a DOE SBIR grant. The primary pump is a liquid helium cooled compound pump designed to continuously pump and fractionate deuterium/tritium and helium. The D/T pumping stage is a 500 mm bore cryocondensation pump with a nominal pumping speed of 45,000 L/s. It will be continuously regenerated by a snail regeneration by head every 12 minutes. Continuous regeneration will dramatically reduce the vulnerable tritium inventory in a fusion reactor. Operating at an inlet pressure of 1 millitorr, eight of these pumps could pump the projected D/T flow in the ITER CDA design while reducing the inventory of tritium in the pumping system from 630 to 43 grams. The helium fraction will be pumped in a compound argon frost stage. This stage will also operate continuously with a snail regeneration head. In addition the argon spray head will be enclosed inside the snail, thereby removing gaseous argon from the process chamber. Since the cryocondensation stage will intercept over 90% of the D/T/H steam, a purified stream from this stage could be directly reinjected into the plasma as gas or pellets, thereby bypassing the isotope …
Date: December 1, 1993
Creator: Foster, C. A. & McCurdy, H. C.
Object Type: Article
System: The UNT Digital Library
Art Song by Turn-of-the-Century Female Composers (open access)

Art Song by Turn-of-the-Century Female Composers

Whereas conditions have existed for many centuries which served to exclude or marginalize female participation in music, many women have written compositions of musical worth sufficient to justify their contemporary performance. Although most women composers wrote works more fitting for the "salon" than for the concert hall at the turn of the century, Boulanger and Mahler are representative of the few women composers whose complex approach to art song fell within the mainstream of the genre. Many of their accompaniments attain a level of technical difficulty not previously found in women composers' writing. They offer an interesting comparison between nationalities and styles in that they both favored Symbolist texts. However, each represents a different side of the coin in her musical interpretation of Symbolism: Boulanger, Impressionism, and Mahler, Expressionism. In addition, even though their styles involve opposite musical expressions, they both show a strong influence of Wagner in their writing. This study includes background on turn-of-the-century music and musicians encompassing the role of art song among women composers. Symbolism is addressed as it applies to the poets selected by the composers, followed by information regarding the specific musical representation of Symbolist texts in the composers' art songs. The chapter of …
Date: December 1993
Creator: Click, Sarah, D.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Asbestos-cement panels test report, 100K Area, Hanford, Washington (open access)

Asbestos-cement panels test report, 100K Area, Hanford, Washington

The 105KE/105KW reactor facilities were constructed in the mid-1950s. The 105KE/105KW fuel-basin roof panels are in a radiation controlled area where there is smearable contamination. The roof panels in all of the inspected areas were constructed from corrugated asbestos-cement (A/C) panels. The corrugated A/C roof panels exhibit common signs of aging including cracking, chipping, spalling, or a combination of these processes. Westinghouse Hanford Company (WHC) has engaged Wiss, Janney, Elstner Associates, Inc. (WJE) to perform laboratory and field tests on A/C roof panels of the 105KW building and also to make recommendations for panel replacement, maintenance, or upgrade that will maintain the structural integrity of the roof panels for an additional 20 years of service. This report contains the results of laboratory and in-situ testing performed by WJE. A Roof Proof Load Test Plan was prepared for WJE and approved by WHC. Conclusions and recommendations based on test results are presented for the 190-KE wall panels and 105KW roof panels.
Date: December 1, 1993
Creator: Moustafa, S. E.
Object Type: Report
System: The UNT Digital Library
Assessing the Importance of Self-Concept Intervention Among High School Students As Measured by the Piers-Harris Children's Self-Concept Scale (open access)

Assessing the Importance of Self-Concept Intervention Among High School Students As Measured by the Piers-Harris Children's Self-Concept Scale

The research problem of this study was to determine the pretest and posttest cluster scores of high school students in a theater class as measured by the Piers-Harris Children's Self-Concept Scale.
Date: December 1993
Creator: Grima, Francis Gerald
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Assessment of a pressurizer spray valve faulty opening transient at Asco Nuclear Power Plant with RELAP5/MOD2. International Agreement Report (open access)

Assessment of a pressurizer spray valve faulty opening transient at Asco Nuclear Power Plant with RELAP5/MOD2. International Agreement Report

The Asociacion Nuclear Asco has prepared a model of Asco NPP using RELAP5/MOD2. This model, which include thermalhydraulics, kinetics and protection and controls, has been qualified in previous calculations of several actual plant transients. One of the transients of the qualification process is a ``Pressurizer spray valve faulty opening`` presented in this report. It consists in a primary coolant depressurization that causes the reactor trip by overtemperature and later on the actuation of the safety injection. The results are in close agreement with plant data.
Date: December 1, 1993
Creator: Reventos, F.; Baptista, J. S.; Navas, A. P. & Moreno, P.
Object Type: Report
System: The UNT Digital Library
Assessment of Accidental Intakes of Uranyl Acetylacetonate (UAA) (open access)

Assessment of Accidental Intakes of Uranyl Acetylacetonate (UAA)

Uranyl acetylacetonate (UAA) is an organic complex of uranium used for military applications as a chemical catalyst in high explosives. It is prepared from depleted uranium metal (in lots of 5 kg to 7 kg) by dissolution in nitric acid, neutralization, and complexation with 2,4-pentanedione; the precipitate is dissolved in benzene and recrystallized, dried, ground, and packaged. About six workers at a small chemical company were exposed over a period of time to UAA powders during routine preparation and packaging of the uranium catalyst. The dissolution characteristics of the inhaled material were unknown and could not be determined from the published scientific literature. A 1.05-g sample of UAA powder was obtained from the responsible regulatory authority for further study to determine its chemical composition, and for dissolution in simulated lung fluid. We found the solubility of UAA to be equivalent to a mixture of 52% ICRP class D and 48% ICRP class W material. The annual limit on intake and the derived air concentration for radiological protection were estimated from this result for airborne exposure to UAA. A recycling biokinetic model was used to estimate both material-specific variations in urinary excretion rates and lung retention with time after accidental intakes. …
Date: December 1, 1993
Creator: Fisher, D. R. & Briant, J. K.
Object Type: Article
System: The UNT Digital Library
Assessment of coal technology options and implications for the State of Hawaii (open access)

Assessment of coal technology options and implications for the State of Hawaii

The mandate of this research report was to provide the state of Hawaii with an assessment of the potential opportunities and drawbacks of relying on coal-fired generating technologies to diversify its fuel mix and satisfy future electric power requirements. This assessment was to include a review of existing and emerging coal-based power technologies-including their associated costs, environmental impacts, land use, and infrastructure requirements-to determine the range of impacts likely to occur if such systems were deployed in Hawaii. Coupled with this review, the report was also to (1) address siting and safety issues as they relate to technology choice and coal transport, (2) consider how environmental costs associated with coal usage are included in the integrated resource planning (ERP) process, and (3) develop an analytical tool from which the Department of Business, Economic Development & Tourism of the State of Hawaii could conduct first-order comparisons of power plant selection and siting. The prepared report addresses each element identified above. However, available resources and data limitations limited the extent to which particular characteristics of coal use could be assessed. For example, the technology profiles are current but not as complete regarding future developments and cost/emissions data as possible, and the assessment …
Date: December 1993
Creator: Carlson, J. L.; Elcock, D. & Elliott, T. J.
Object Type: Report
System: The UNT Digital Library
Assessment of costs and benefits of flexible and alternative fuel use in the US transportation sector. Technical report twelve: Economic analysis of alternative uses for Alaskan North Slope natural gas (open access)

Assessment of costs and benefits of flexible and alternative fuel use in the US transportation sector. Technical report twelve: Economic analysis of alternative uses for Alaskan North Slope natural gas

As part of the Altemative Fuels Assessment, the Department of Energy (DOE) is studying the use of derivatives of natural gas, including compressed natural gas and methanol, as altemative transportation fuels. A critical part of this effort is determining potential sources of natural gas and the economics of those sources. Previous studies in this series characterized the economics of unutilized gas within the lower 48 United States, comparing its value for methanol production against its value as a pipelined fuel (US Department of Energy 1991), and analyzed the costs of developing undeveloped nonassociated gas reserves in several countries (US Department of Energy 1992c). This report extends those analyses to include Alaskan North Slope natural gas that either is not being produced or is being reinjected. The report includes the following: A description of discovered and potential (undiscovered) quantities of natural gas on the Alaskan North Slope. A discussion of proposed altemative uses for Alaskan North Slope natural gas. A comparison of the economics of the proposed alternative uses for Alaskan North Slope natural gas. The purpose of this report is to illustrate the costs of transporting Alaskan North Slope gas to markets in the lower 48 States as pipeline gas, …
Date: December 1, 1993
Creator: unknown
Object Type: Report
System: The UNT Digital Library
An Assessment of Future Energy Use and Carbon Emissions From U.S. Residences (open access)

An Assessment of Future Energy Use and Carbon Emissions From U.S. Residences

This paper explores residential energy futures and their associated carbon emissions using an engineering-economic end-use model. The authors present detailed input assumptions and output results for twenty-four cases, each representing a different combination of electricity supply mix, demand-side policy case, and carbon tax. They describe current and projected future energy use by end-use and fuel, and assess which end-uses are growing most rapidly in importance over time.
Date: December 1993
Creator: Koomey, J. G.; Johnson, F. X.; McMahon, J. E.; Orland, M. C.; Levine, M. D.; Chan, P. et al.
Object Type: Report
System: The UNT Digital Library
Assessment of RELAP5/MOD2 against a main feedwater turbopump trip transient in the Vandellos II Nuclear Power Plant (open access)

Assessment of RELAP5/MOD2 against a main feedwater turbopump trip transient in the Vandellos II Nuclear Power Plant

The Consejo de Seguridad Nuclear (CSN) and the Asociacion Nuclear Vandellos (ANV) have developed a model of Vandellos II Nuclear Power Plant. The ANV collaboration consisted in the supply of design and actual data, the cooperation in the simulation of the control systems and other model components, as well as in the results analysis. The obtained model has been assessed against the following transients occurred in plant: A trip from the 100% power level (CSN); a load rejection from 100% to 50% (CSN); a load rejection from 75% to 65% (ANV); and, a feedwater turbopump trip (ANV). This copy is a report of the feedwater turbopump trip transient simulation. This transient actually occurred in the plant on June 19, 1989.
Date: December 1, 1993
Creator: Llopis, C.; Casals, A.; Perez, J. & Mendizabal, R.
Object Type: Report
System: The UNT Digital Library
Atom probe field ion microscopy and related topics: A bibliography 1992 (open access)

Atom probe field ion microscopy and related topics: A bibliography 1992

This bibliography contains citations of books, conference proceedings, journals, and patents published in 1992 on the following types of microscopy: atom probe field ion microscopy (108 items); field emission microscopy (101 items); and field ion microscopy (48 items). An addendum of 34 items missed in previous bibliographies is included.
Date: December 1, 1993
Creator: Russell, K. F.; Godfrey, R. D. & Miller, M. K.
Object Type: Report
System: The UNT Digital Library
Atomic scale structure and chemistry of interfaces by Z-contrast imaging and electron energy loss spectroscopy in the STEM (open access)

Atomic scale structure and chemistry of interfaces by Z-contrast imaging and electron energy loss spectroscopy in the STEM

The macroscopic properties of many materials are controlled by the structure and chemistry at the grain boundaries. A basic understanding of the structure-property relationship requires a technique which probes both composition and chemical bonding on an atomic scale. The high-resolution Z-contrast imaging technique in the scanning transmission electron microscope (STEM) forms an incoherent image in which changes in atomic structure and composition can be interpreted intuitively. This direct image allows the electron probe to be positioned over individual atomic columns for parallel detection electron energy loss spectroscopy (PEELS) at a spatial resolution approaching 0.22nm. The bonding information which can be obtained from the fine structure within the PEELS edges can then be used in conjunction with the Z-contrast images to determine the structure at the grain boundary. In this paper we present 3 examples of correlations between the structural, chemical and electronic properties at materials interfaces in metal-semiconductor systems, superconducting and ferroelectric materials.
Date: December 1, 1993
Creator: McGibbon, M. M.; Browning, N. D.; Chisholm, M. F. & Pennycook, S. J.
Object Type: Article
System: The UNT Digital Library
Atomic-scale structure and chemistry of interfaces by Z-contrast imaging and electron energy loss spectroscopy in the STEM (open access)

Atomic-scale structure and chemistry of interfaces by Z-contrast imaging and electron energy loss spectroscopy in the STEM

The macroscopic properties of many materials are controlled by the structure and chemistry at grain boundaries. A basic understanding of the structure-property relationship requires a technique which probes both composition and chemical bonding on an atomic scale. The high-resolution Z-contrast imaging technique in the scanning transmission electron microscope (STEM) forms an incoherent image in which changes in atomic structure and composition can be interpreted intuitively. This direct image allows the electron probe to be positioned over individual atomic columns for parallel detection electron energy loss spectroscopy (EELS) at a spatial resolution approaching 0.22nm. In this paper we have combined the structural information available in the Z-contrast images with the bonding information obtained from the fine structure within the EELS edges to determine the grain boundary structure in a SrTiO{sub 3} bicrystal.
Date: December 1, 1993
Creator: McGibbon, M. M.; Browning, N. D.; Chisholm, M. F.; Pennycook, S. J.; Ravikumar, V. & Dravid, V. P.
Object Type: Article
System: The UNT Digital Library
Attitudes Toward Teaching and Research Among Biology Faculty in Texas Institutions of Higher Education (open access)

Attitudes Toward Teaching and Research Among Biology Faculty in Texas Institutions of Higher Education

This study investigated the attitudes toward teaching and research among biology faculty in Texas institutions of higher learning. The purposes of the study were to: 1) determine what the attitudes of Texas biology faculty were toward teaching; 2) to determine the attitudes of Texas biology faculty toward research; 3) to determine if biology faculty attitudes toward teaching vary according to faculty rank; 4) to determine if biology faculty attitudes toward research vary according to faculty rank; 5) to determine if attitudes of biology faculty in Texas toward teaching vary according to institutional type; and 6) to determine if attitudes of biology faculty in Texas toward research vary according to institutional type.
Date: December 1993
Creator: Salehi, Faiz
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Audit Issues for Water District Auditors: Notes to the Financial Statements (open access)

Audit Issues for Water District Auditors: Notes to the Financial Statements

Document listing the necessary components of General Purpose Financial Statements for use by water district auditors. The checklist denotes optionally applicable items with an asterisk.
Date: December 1993
Creator: Texas Natural Resource Conservation Commission
Object Type: Report
System: The Portal to Texas History
Audit Manual release 3.0 (open access)

Audit Manual release 3.0

This manual consolidates into one document the policies, procedures, standards, technical guidance and other techniques to be followed by the Assistant Inspector General for Audits and staff in planning and conducting audit work within DOE and in preparing related reports on behalf of the Office of Inspector General.
Date: December 1, 1993
Creator: unknown
Object Type: Report
System: The UNT Digital Library