Latest content added for UNT Digital Library Partner: UNT Libraries Government Documents Departmenthttps://digital.library.unt.edu/explore/partners/UNTGD/browse/?fq=dc_type:text_report&fq=untl_decade:1990-1999&display=grid2022-08-16T20:57:46-05:00UNT LibrariesThis is a custom feed for browsing UNT Digital Library Partner: UNT Libraries Government Documents DepartmentCoal Reserves of the Boltsfork Quadrangle, Kentucky: A Coal Recoverability Study2022-08-16T20:57:46-05:00https://digital.library.unt.edu/ark:/67531/metadc1983336/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1983336/"><img alt="Coal Reserves of the Boltsfork Quadrangle, Kentucky: A Coal Recoverability Study" title="Coal Reserves of the Boltsfork Quadrangle, Kentucky: A Coal Recoverability Study" src="https://digital.library.unt.edu/ark:/67531/metadc1983336/small/"/></a></p><p>Abstract: "This report presents a U.S. Bureau of Mines study that incorporates coal mining factors, cola recovery factors, and economic factors into the definition of an economically recoverable coal resource. The relationship between these factors to the Energy Information Administration's estimate of U.S. coal resources--the "Demonstrated Reserve Base"--is discussed. The Boltsfork 7 1/2-minute quadrangle in eastern Kentucky was selected as the stud area. Results indicate that of the original 280.2 M tons of resource in the quadrangle, only 99.8 M tons (35.6%) is recoverable at a mining cost of $25 per ton or less" (p. 1).</p>In-Situ Amelioration of Acid Mine Drainage Problems: Final Report2022-05-26T16:40:20-05:00https://digital.library.unt.edu/ark:/67531/metadc1933936/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1933936/"><img alt="In-Situ Amelioration of Acid Mine Drainage Problems: Final Report" title="In-Situ Amelioration of Acid Mine Drainage Problems: Final Report" src="https://digital.library.unt.edu/ark:/67531/metadc1933936/small/"/></a></p><p>Final report</p>Conditioning and Hydration Reactions Associated With Clean Coal Technology Ash Disposal/Hydration: Final Report2022-05-26T16:40:20-05:00https://digital.library.unt.edu/ark:/67531/metadc1933938/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1933938/"><img alt="Conditioning and Hydration Reactions Associated With Clean Coal Technology Ash Disposal/Hydration: Final Report" title="Conditioning and Hydration Reactions Associated With Clean Coal Technology Ash Disposal/Hydration: Final Report" src="https://digital.library.unt.edu/ark:/67531/metadc1933938/small/"/></a></p><p>Final report</p>Miscible/Immiscible Gas Injection Processes: Final Report2022-05-26T16:40:20-05:00https://digital.library.unt.edu/ark:/67531/metadc1933940/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1933940/"><img alt="Miscible/Immiscible Gas Injection Processes: Final Report" title="Miscible/Immiscible Gas Injection Processes: Final Report" src="https://digital.library.unt.edu/ark:/67531/metadc1933940/small/"/></a></p><p>Final report</p>Evaluation of Alternate Free Radical Initiators for Heavy Oil/Plastics Co-Processing: Final Report2022-05-26T16:40:20-05:00https://digital.library.unt.edu/ark:/67531/metadc1933942/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1933942/"><img alt="Evaluation of Alternate Free Radical Initiators for Heavy Oil/Plastics Co-Processing: Final Report" title="Evaluation of Alternate Free Radical Initiators for Heavy Oil/Plastics Co-Processing: Final Report" src="https://digital.library.unt.edu/ark:/67531/metadc1933942/small/"/></a></p><p>Final report</p>Development of a Portable Data Acquisition System. Part 1: Development of a Portable Data Acquisition System2022-05-26T16:40:20-05:00https://digital.library.unt.edu/ark:/67531/metadc1933944/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1933944/"><img alt="Development of a Portable Data Acquisition System. Part 1: Development of a Portable Data Acquisition System" title="Development of a Portable Data Acquisition System. Part 1: Development of a Portable Data Acquisition System" src="https://digital.library.unt.edu/ark:/67531/metadc1933944/small/"/></a></p><p>Final report</p>Haz-Flote: Ex-Situ Decontamination of Materials2022-05-26T16:40:20-05:00https://digital.library.unt.edu/ark:/67531/metadc1933946/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1933946/"><img alt="Haz-Flote: Ex-Situ Decontamination of Materials" title="Haz-Flote: Ex-Situ Decontamination of Materials" src="https://digital.library.unt.edu/ark:/67531/metadc1933946/small/"/></a></p><p>Final report</p>The SYNAG Process: Coal Combustion Ash Management Option2022-05-26T16:40:20-05:00https://digital.library.unt.edu/ark:/67531/metadc1933937/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1933937/"><img alt="The SYNAG Process: Coal Combustion Ash Management Option" title="The SYNAG Process: Coal Combustion Ash Management Option" src="https://digital.library.unt.edu/ark:/67531/metadc1933937/small/"/></a></p><p>Final report</p>Process Support and Development for Compcoal: Final Report2022-05-26T16:40:20-05:00https://digital.library.unt.edu/ark:/67531/metadc1933939/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1933939/"><img alt="Process Support and Development for Compcoal: Final Report" title="Process Support and Development for Compcoal: Final Report" src="https://digital.library.unt.edu/ark:/67531/metadc1933939/small/"/></a></p><p>Final report</p>COMPCOAL: A Profitable Process for Production of a Stable High-Btu Fuel From Powder River Basin Coal. Final Report2022-05-26T16:40:20-05:00https://digital.library.unt.edu/ark:/67531/metadc1933941/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1933941/"><img alt="COMPCOAL: A Profitable Process for Production of a Stable High-Btu Fuel From Powder River Basin Coal. Final Report" title="COMPCOAL: A Profitable Process for Production of a Stable High-Btu Fuel From Powder River Basin Coal. Final Report" src="https://digital.library.unt.edu/ark:/67531/metadc1933941/small/"/></a></p><p>Final report</p>Development of an On-Line Alkali Monitoring Probe: Final Report2022-05-26T16:40:20-05:00https://digital.library.unt.edu/ark:/67531/metadc1933943/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1933943/"><img alt="Development of an On-Line Alkali Monitoring Probe: Final Report" title="Development of an On-Line Alkali Monitoring Probe: Final Report" src="https://digital.library.unt.edu/ark:/67531/metadc1933943/small/"/></a></p><p>Final report</p>Bench-Scale Testing and Verification of Pyrolysis Concept for Remediation of Tank Bottoms: Final Report2022-05-26T16:40:20-05:00https://digital.library.unt.edu/ark:/67531/metadc1933945/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1933945/"><img alt="Bench-Scale Testing and Verification of Pyrolysis Concept for Remediation of Tank Bottoms: Final Report" title="Bench-Scale Testing and Verification of Pyrolysis Concept for Remediation of Tank Bottoms: Final Report" src="https://digital.library.unt.edu/ark:/67531/metadc1933945/small/"/></a></p><p>Final report</p>Reactor Operations Division Monthly Report2022-02-05T18:41:35-06:00https://digital.library.unt.edu/ark:/67531/metadc1254608/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1254608/"><img alt="Reactor Operations Division Monthly Report" title="Reactor Operations Division Monthly Report" src="https://digital.library.unt.edu/ark:/67531/metadc1254608/small/"/></a></p><p>Monthly report from the Reactor Operations Division of the Brookhaven National Laboratory that covers various topics like the different operations conducted, and the amount of energy consumed.</p>Improved Calibration Facility2021-12-18T19:06:18-06:00https://digital.library.unt.edu/ark:/67531/metadc1254060/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1254060/"><img alt="Improved Calibration Facility" title="Improved Calibration Facility" src="https://digital.library.unt.edu/ark:/67531/metadc1254060/small/"/></a></p><p>Aid in redesign of the calibration facility in order to: 1. Reduce the rate of exposure for calibration personnel below 1 mr/hr; 2. Reduce the rate of exposure outside of the 3745 Building; 3. Reduce the risk of breaking radium sources; 4. Improve the efficiency of calibration procedures by: a. Allowing calibration to be done faster; b. Providing several calibration ranges which can operate simultaneously in the present space allowed; c. Allowing instrument survey work to proceed while calibration work is done. A well-type calibration installation is proposed and a brief description of the required shielding is included.</p>Geology and Mineral Resources of the Hailey 1°x2° Quadrangle and the Western Part of the Idaho Falls 1°x2° Quadrangle, Idaho2021-11-04T16:54:37-05:00https://digital.library.unt.edu/ark:/67531/metadc958051/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc958051/"><img alt="Geology and Mineral Resources of the Hailey 1°x2° Quadrangle and the Western Part of the Idaho Falls 1°x2° Quadrangle, Idaho" title="Geology and Mineral Resources of the Hailey 1°x2° Quadrangle and the Western Part of the Idaho Falls 1°x2° Quadrangle, Idaho" src="https://digital.library.unt.edu/ark:/67531/metadc958051/small/"/></a></p><p>Report containing a series of chapters discussing the geologic and mineral resources of the Hailey Quadrangle and Western part of the Idaho Falls Quadrangle in Idaho.</p>Acoustic Emission/Flaw Relationships for Inservice Monitoring of LWRs2021-03-18T12:52:18-05:00https://digital.library.unt.edu/ark:/67531/metadc1202751/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1202751/"><img alt="Acoustic Emission/Flaw Relationships for Inservice Monitoring of LWRs" title="Acoustic Emission/Flaw Relationships for Inservice Monitoring of LWRs" src="https://digital.library.unt.edu/ark:/67531/metadc1202751/small/"/></a></p><p>"The program concerning Acoustic Emission/Flaw Relationships for Inservice Monitoring of LWRs was entitled in FY76 with the objective of validating the application of acoustic emission (AE) to monitor nuclear reactor pressure-containing components during operation to detect cracking."</p>Geophysical Investigations of the Western Ohio-Indiana Region : Annual Report, October 1988-September 19892021-03-18T12:51:59-05:00https://digital.library.unt.edu/ark:/67531/metadc1202738/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1202738/"><img alt="Geophysical Investigations of the Western Ohio-Indiana Region : Annual Report, October 1988-September 1989" title="Geophysical Investigations of the Western Ohio-Indiana Region : Annual Report, October 1988-September 1989" src="https://digital.library.unt.edu/ark:/67531/metadc1202738/small/"/></a></p><p>A report regarding geophysical investigations of the Western Ohio-Indiana Region</p>MELCOR Accident Consequence Code System (MACCS)2020-11-22T06:17:25-06:00https://digital.library.unt.edu/ark:/67531/metadc1202744/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1202744/"><img alt="MELCOR Accident Consequence Code System (MACCS)" title="MELCOR Accident Consequence Code System (MACCS)" src="https://digital.library.unt.edu/ark:/67531/metadc1202744/small/"/></a></p><p>"This report describes the MACCS computer code. The purpose of this code is to simulate the impact of severe accidents at nuclear power plants on the surrounding environment.</p>Computer Analysis of Geochemical Data of Stream Sediment and Waters of the Montrose 1° X 2° Quadrangle, Colorado2020-08-30T13:59:14-05:00https://digital.library.unt.edu/ark:/67531/metadc1202754/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1202754/"><img alt="Computer Analysis of Geochemical Data of Stream Sediment and Waters of the Montrose 1° X 2° Quadrangle, Colorado" title="Computer Analysis of Geochemical Data of Stream Sediment and Waters of the Montrose 1° X 2° Quadrangle, Colorado" src="https://digital.library.unt.edu/ark:/67531/metadc1202754/small/"/></a></p><p>The following preliminary report is a computer analysis of HSSR data from the Montrose 1x2 Quadrangle, Colorado.</p>Economic geology of the aluminum phosphate zone on property owned by the American Agricultural Chemical Company, land-pebble phosphate district, Florida2020-05-09T21:16:31-05:00https://digital.library.unt.edu/ark:/67531/metadc1393489/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1393489/"><img alt="Economic geology of the aluminum phosphate zone on property owned by the American Agricultural Chemical Company, land-pebble phosphate district, Florida" title="Economic geology of the aluminum phosphate zone on property owned by the American Agricultural Chemical Company, land-pebble phosphate district, Florida" src="https://digital.library.unt.edu/ark:/67531/metadc1393489/small/"/></a></p><p>This report presents all analytical data on the aluminum phosphate zone on lands owned by the American Agricultural Chemical Co. (A. A. C. Co.), and is one of a series of reports on lands of the companies active in the Land-Pebble Phosphate district.</p>Sedimentological Descriptions and Depositional Interpretations, in Sequence Stratigraphic Context, of Two 300-Meter Cores from the Upper Cretaceous Straight Cliffs Formation, Kaiparowits Plateau, Kane County, Utah2019-12-05T11:50:40-06:00https://digital.library.unt.edu/ark:/67531/metadc958061/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc958061/"><img alt="Sedimentological Descriptions and Depositional Interpretations, in Sequence Stratigraphic Context, of Two 300-Meter Cores from the Upper Cretaceous Straight Cliffs Formation, Kaiparowits Plateau, Kane County, Utah" title="Sedimentological Descriptions and Depositional Interpretations, in Sequence Stratigraphic Context, of Two 300-Meter Cores from the Upper Cretaceous Straight Cliffs Formation, Kaiparowits Plateau, Kane County, Utah" src="https://digital.library.unt.edu/ark:/67531/metadc958061/small/"/></a></p><p>The following report provides detailed analyses of two 300-meter cores from upper Turonian to lower Campanian strata of the Straight Cliffs Formation, Kaiparowits Plateau, Kane County, Utah.</p>Geology of the Harpers Ferry Quadrangle, Virginia, Maryland, and West Virginia2019-12-05T11:50:40-06:00https://digital.library.unt.edu/ark:/67531/metadc958060/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc958060/"><img alt="Geology of the Harpers Ferry Quadrangle, Virginia, Maryland, and West Virginia" title="Geology of the Harpers Ferry Quadrangle, Virginia, Maryland, and West Virginia" src="https://digital.library.unt.edu/ark:/67531/metadc958060/small/"/></a></p><p>The following report documents the geological mapping of the Harpers Ferry quadrangle, Virginia, Maryland, and West Virginia, from between 1989 and 1990.</p>Geology and Mineral Deposits of the Venezuelan Guayana Shield2019-12-03T21:23:23-06:00https://digital.library.unt.edu/ark:/67531/metadc958055/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc958055/"><img alt="Geology and Mineral Deposits of the Venezuelan Guayana Shield" title="Geology and Mineral Deposits of the Venezuelan Guayana Shield" src="https://digital.library.unt.edu/ark:/67531/metadc958055/small/"/></a></p><p>Abstract: The U.S. Geological Survey and the Corporación Venezolana de Guayana, Técnica Minera, C.A., conducted a cooperative mapping, exploration, and mineral resource estimation study in Venezuela from 1987 to 1992. The work was conducted in the Venezuelan Guayana Shield, an Archean to Early and Middle Proterozoic craton in southern and eastern Venezuela of almost 415,000 km2 that is mostly covered by jungle and savanna. Results obtained from this project contribute a new understanding of the geology and evolution of the Venezuelan Guayana Shield and the nature of its mineral occurrences. Personnel from Técnica Minera, C.A., were trained both in the field and in the office to conduct modern mineral exploration and geologic mapping and research programs. This five-year project was supported financially by the Corporación Venezolana de Guayana.</p>Geochemical Survey of the Craig Study Area--Craig and Dixon Entrance Quadrangles and the Western Edges of the Ketchikan and Prince Rupert Quadrangles, Southeast Alaska2019-12-03T21:23:23-06:00https://digital.library.unt.edu/ark:/67531/metadc958059/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc958059/"><img alt="Geochemical Survey of the Craig Study Area--Craig and Dixon Entrance Quadrangles and the Western Edges of the Ketchikan and Prince Rupert Quadrangles, Southeast Alaska" title="Geochemical Survey of the Craig Study Area--Craig and Dixon Entrance Quadrangles and the Western Edges of the Ketchikan and Prince Rupert Quadrangles, Southeast Alaska" src="https://digital.library.unt.edu/ark:/67531/metadc958059/small/"/></a></p><p>The following report documents results taken from a reconnaissance geochemical survey that was conducted in the northwest-trending Alexander terrane, Gravina-Nutzotin overlap assemblage, and Taku terrane in southeast Alaska in the Craig and Dixon Entrance quadrangles and the western edges of the Ketchikan and Prince Rupert quadrangles.</p>Mineral Resource Potential and Geology of Coronado National Forest, Southeastern Arizona and Southwestern New Mexico2019-12-03T21:23:23-06:00https://digital.library.unt.edu/ark:/67531/metadc958052/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc958052/"><img alt="Mineral Resource Potential and Geology of Coronado National Forest, Southeastern Arizona and Southwestern New Mexico" title="Mineral Resource Potential and Geology of Coronado National Forest, Southeastern Arizona and Southwestern New Mexico" src="https://digital.library.unt.edu/ark:/67531/metadc958052/small/"/></a></p><p>The following report is a mineral resource assessment of Coronado National Forest of southeastern Arizona and southwestern New Mexico, formed by geologic, geochemical, and geophysical data.</p>Mineral and Energy Resources of the Roswell Resource Area, East-Central New Mexico2019-12-03T21:23:23-06:00https://digital.library.unt.edu/ark:/67531/metadc958054/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc958054/"><img alt="Mineral and Energy Resources of the Roswell Resource Area, East-Central New Mexico" title="Mineral and Energy Resources of the Roswell Resource Area, East-Central New Mexico" src="https://digital.library.unt.edu/ark:/67531/metadc958054/small/"/></a></p><p>The following report presents geological data taken from studies made on the mineral and energy resources in the surface and subsurface within the Roswell Resource Area in east-central New Mexico.</p>Geochemical Signatures of Silver and Gold Deposits, Tonopah 1° x 2° Quadrangle, Nevada: Description and Applications to Exploration2019-12-03T21:23:23-06:00https://digital.library.unt.edu/ark:/67531/metadc958058/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc958058/"><img alt="Geochemical Signatures of Silver and Gold Deposits, Tonopah 1° x 2° Quadrangle, Nevada: Description and Applications to Exploration" title="Geochemical Signatures of Silver and Gold Deposits, Tonopah 1° x 2° Quadrangle, Nevada: Description and Applications to Exploration" src="https://digital.library.unt.edu/ark:/67531/metadc958058/small/"/></a></p><p>The following report presents geochemical data results of 34 elements in 951 samples of altered and mineralized rock samples from mines, prospects, dumps, and drillholes in the Tonopah quadrangle, Nevada.</p>Advanced NMR-based techniques for pore structure analysis of coal2019-02-10T20:45:37-06:00https://digital.library.unt.edu/ark:/67531/metadc1443759/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1443759/"><img alt="Advanced NMR-based techniques for pore structure analysis of coal" title="Advanced NMR-based techniques for pore structure analysis of coal" src="https://digital.library.unt.edu/ark:/67531/metadc1443759/small/"/></a></p><p>One of the main problems in coal utilization is the inability to properly characterize its complex pore structure. Coals typically have micro/ultra-micro pores but they also exhibit meso and macroporosity. We believe that measurement of the NMR parameters of various gas phase and adsorbed phase NMR active probes can provide the resolution to this problem. We will investigate the dependence of the common NMR parameters such as chemical shifts and relaxation times of several different nuclei and compounds on the pore structure of model microporous solids, carbons, and coals. In particular, we will study the interaction between several small molecules ({sup 129}Xe, {sup 3}He, {sup 2}H{sub 2}, {sup 14}N{sub 2}, {sup 14}NH{sub 3}, {sup 15}N{sub 2}, {sup 13}CH{sub 4}, {sup 13}CO{sub 2}) and the pore surfaces in coals. These molecules have been selected for their chemical and physical properties. A special NMR probe will be constructed which will allow the concurrent measurement of NMR properties and adsorption uptake at a variety of temperatures. All samples will be subjected to a suite of conventional'' pore structure analyses. These include nitrogen adsorption at 77 K with BET analysis, C0{sub 2} and CH{sub 4} adsorption at 273 K with D-R (Dubinin-Radushkevich) analysis, helium pycnometry, and small angle X-ray scattering as well as gas diffusion measurements. The project combines expertise at the UNM (pore structure, NMR), Los Alamos National Laboratory (NMR), and Air Products (porous materials).</p>Review of the US Department of Energy Classified Visits Program2019-02-10T20:45:37-06:00https://digital.library.unt.edu/ark:/67531/metadc1443763/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1443763/"><img alt="Review of the US Department of Energy Classified Visits Program" title="Review of the US Department of Energy Classified Visits Program" src="https://digital.library.unt.edu/ark:/67531/metadc1443763/small/"/></a></p><p>This review examines the US Department of Energy (DOE) Classified Visits Program, which is administered by the Office of Safeguards and Security. The overall purpose of this analysis is to (1) ensure that DOE policy and implementing procedures are appropriate to maintain US national security intentions; (2) evaluate the effectiveness of the process used across the DOE complex; and (3) recommend changes which will enhance the overall efficiency of the process while maintaining the program's integrity.</p>Modeling and sensitivity analysis study of the reduction of NO sub x by HNCO. [RAPRENOx process]2019-02-10T20:45:37-06:00https://digital.library.unt.edu/ark:/67531/metadc1443769/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1443769/"><img alt="Modeling and sensitivity analysis study of the reduction of NO sub x by HNCO. [RAPRENOx process]" title="Modeling and sensitivity analysis study of the reduction of NO sub x by HNCO. [RAPRENOx process]" src="https://digital.library.unt.edu/ark:/67531/metadc1443769/small/"/></a></p><p>A chemical mechanism for the reduction of NO{sub x} by HNCO has been constructed to allow for the modeling of NO{sub x} in exhausts typical of natural gas combustion (RAPRENOx process). The reduction was modeled assuming plug flow, and either isothermal combustion or constant pressure adiabatic combustion. Variables were initial concentrations of NO, NO{sub 2}, CO, CH{sub 4}, H{sub 2}, and HNCO as well as initial temperatures. Exhaust residence time was nominally 1 s. Reduction was not achieved for prototypical natural gas exhaust'' for a reasonable residence time. Radical generation is crucial for reduction. H{sub 2} addition enhanced ignition and reduction. The final combustion temperature determines where NO{sub x} reduction ceases and NO{sub x} production increases. Reduction increases with HNCO, and breakthrough of NH{sub 3} and HNCO increses as well. N{sub 2}O production is due to NCO + NO, but the reduction of NO also occurs through reactions associated with the Thermal De-NOx chemistry. NH{sub 3} production and reactions are important to the reduction of NO. Sensitivity analysis under easy ignition conditions indicated that the same reactions involving nitrogen species, NH{sub 2} and NNH, important in De-NOx, are important when HNCO is used to reduce NO{sub x}. A real combustion exhaust would contain radicals, but it would be neither isothermal nor adiabatic, and heat release and loss would accompany the reduction process. Three-body recombination reactions are important and need further study.(DLC)</p>Characterization of jet breakup mechanisms observed from simulant experiments of molten fuel penetrating coolant2019-02-10T20:45:37-06:00https://digital.library.unt.edu/ark:/67531/metadc1443779/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1443779/"><img alt="Characterization of jet breakup mechanisms observed from simulant experiments of molten fuel penetrating coolant" title="Characterization of jet breakup mechanisms observed from simulant experiments of molten fuel penetrating coolant" src="https://digital.library.unt.edu/ark:/67531/metadc1443779/small/"/></a></p><p>The goal of this research program has been to add to our understanding of the breakup of molten fuel jets penetrating reactor coolant. Easily handled working fluids are used to simulate fuel jet breakup, so that detailed observations may be obtained from a relatively large number of experiments. The tools used for observing this behavior are high speed notion picture photography, Flash X-radiography, and X-ray cine. Jet breakup lengths are determined from motion pictures; the mechanisms by which the jets are fragmented may be inferred from radiographs.</p>Actuator system history of safety rod lower latch problems review of latch inspection video tapes2019-02-10T20:45:37-06:00https://digital.library.unt.edu/ark:/67531/metadc1444117/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1444117/"><img alt="Actuator system history of safety rod lower latch problems review of latch inspection video tapes" title="Actuator system history of safety rod lower latch problems review of latch inspection video tapes" src="https://digital.library.unt.edu/ark:/67531/metadc1444117/small/"/></a></p><p>During pre-restart testing the safety rod at position X26-YlO bound after being driven approximately two (2) feet out of the reactor. Subsequently, the rod was manually returned to it's seated position. Inspection of the lower latch showed that the latch locking plunger button (screwed on to the bottom of the plunger shaft and retained by a pin through a hole drilled through the button and the plunger shaft) was missing. The shaft failed through the hole drilled for the retaining pin. The button, with the retaining pin intact, was found lodged between the safety rod upper adapter collar and the top of the safety rod thimble top fitting. Analysis of the safety rod latch and accompanying forest guide tube design provided assurance that this type of failure would not cause binding during the scramming'' of the safety rods. Inspection of all of the K'' safety rod lower latches revealed six other latches with missing plunger buttons, and nine with other non-conformances which required latch replacement. A history search conducted by Reactor Engineering Design, Components Handling Group, is included in this report. The history search shows that latch design modifications, as a part of initial development of the latch system and later to improve the delatching operation, were made from 1950 to 1960. These modifications created a condition where latch damage could occur. Video tapes were made during inspection of the safety rod latches in K area and control rod latches in L area. These tapes were reviewed by Reactor Engineering Design Components Handling engineers. The reviews were used for correlation of latch problems reported by the engineers/mechanics making the inspections. The K area tapes showed inspection of 65 of the 66 safety rod latches. The review of the tapes showed the plunger buttons to be missing from five latches. RED-CH reviewed the L Area video taped inspection of 35 control rod clusters (245 latches). No non-conformances were noted.</p>Inhibition of retrogressive reactions in coal/petroleum co-processing2019-02-10T20:45:37-06:00https://digital.library.unt.edu/ark:/67531/metadc1444118/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1444118/"><img alt="Inhibition of retrogressive reactions in coal/petroleum co-processing" title="Inhibition of retrogressive reactions in coal/petroleum co-processing" src="https://digital.library.unt.edu/ark:/67531/metadc1444118/small/"/></a></p><p>The overall objective of this project is to develop a fundamental understanding of the reactions occurring at the onset of coke formation during the CO-processing of coals with action of chemical components, or groups of components, in coals and petroleum feedstocks to quantify and rank the effects of these components in retarding or enhancement of coke formation. The work involves bench scale reactions in microautoclaves, supplemented by studies of the carbonaceous residues by such techniques as diffuse reflectance Fourier transform infrared spectroscopy and {sup 13}C nuclear magnetic resonance spectrometry.</p>Evaluation of S-101 course Supervisors Orientation to Occupational Safety Compliance in DOE'' taught in Upton, New York, July 14--17, 19922019-02-10T20:45:37-06:00https://digital.library.unt.edu/ark:/67531/metadc1444132/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1444132/"><img alt="Evaluation of S-101 course Supervisors Orientation to Occupational Safety Compliance in DOE'' taught in Upton, New York, July 14--17, 1992" title="Evaluation of S-101 course Supervisors Orientation to Occupational Safety Compliance in DOE'' taught in Upton, New York, July 14--17, 1992" src="https://digital.library.unt.edu/ark:/67531/metadc1444132/small/"/></a></p><p>This report summarizes trainee evaluations for the Safety Training Section course, Supervisors' Orientation to Occupational Safety in DOE,'' (S101) which was conducted July 14--17 at Brookhaven National Laboratory, in Upton, New York. Sections 1.1 and 1.2 summarize the quantitative course evaluations that trainees provided upon completion of the course. Appendix A provides a transcript of the trainees' written comments. Numeric course ratings were generally positive and show that the course material and instruction were very effective. Written comments supported the positive numeric ratings. The course content and knowledge gained by the trainees exceeded most of the students' expectations of the course. Results from the final examination showed that students gained significant knowledge from the course.</p>South Fork Clearwater River Habitat Enhancement, Nez Perce National Forest.2019-02-10T20:45:37-06:00https://digital.library.unt.edu/ark:/67531/metadc1444145/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1444145/"><img alt="South Fork Clearwater River Habitat Enhancement, Nez Perce National Forest." title="South Fork Clearwater River Habitat Enhancement, Nez Perce National Forest." src="https://digital.library.unt.edu/ark:/67531/metadc1444145/small/"/></a></p><p>In 1984, the Nez Perce National forest and the Bonneville Power Administration entered into a contractual agreement which provided for improvement of spring chinook salmon and summer steelhead trout habitat in south Fork Clearwater River tributaries. Project work was completed in seven main locations: Crooked River, Red River, Meadow Creek Haysfork Gloryhole, Cal-Idaho Gloryhole, Fisher Placer and Leggett Placer. This report describes restoration activities at each of these sites.</p>Influence of surface defects and local structure on oxygenate reaction pathways over metal oxide surfaces2019-02-10T20:45:37-06:00https://digital.library.unt.edu/ark:/67531/metadc1444102/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1444102/"><img alt="Influence of surface defects and local structure on oxygenate reaction pathways over metal oxide surfaces" title="Influence of surface defects and local structure on oxygenate reaction pathways over metal oxide surfaces" src="https://digital.library.unt.edu/ark:/67531/metadc1444102/small/"/></a></p><p>Work during the last year (August 1991 to July 1992) has concentrated on completing the previously initiated studies of the surface chemistry of C{sub 1} oxygenates on particularly methanol SnO{sub 2}(110) and beginning studies of C{sub 2}oxygenate surface chemistry. During the remaining six months of the second budget period, the C{sub 2} studies will be continued.</p>Status report: A hydrologic framework for the Oak Ridge Reservation2019-02-10T20:45:37-06:00https://digital.library.unt.edu/ark:/67531/metadc1444103/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1444103/"><img alt="Status report: A hydrologic framework for the Oak Ridge Reservation" title="Status report: A hydrologic framework for the Oak Ridge Reservation" src="https://digital.library.unt.edu/ark:/67531/metadc1444103/small/"/></a></p><p>This first status report on the Hydrologic Studies Task of the Oak Ridge Reservation Hydrology and Geology Study (ORRHAGS) revises earlier concepts of subsurface hydrology and hydrogeochemistry of the ORR. A new classification of hydrogeologic units is given, as well as new interpretations of the gydrogeologic properties and processes that influence contaminant migration. The conceptual hydrologic framework introduced in this report is based primarily on reinterpretations of data acquired during earlier hydrologic investigations of waste areas at and near the three US Department of Energy Oak Ridge (DOE-OR) plant facilities. In addition to describing and interpreting the properties and processes of the groundwater systems as they are presently understood, this report describes surface water-subsurface water relations, influences on contaminant migration,and implications to environmental restoration, environmental monitoring, and waste management.</p>High beta and second stability region transport and stability analysis2019-02-10T20:45:37-06:00https://digital.library.unt.edu/ark:/67531/metadc1444115/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1444115/"><img alt="High beta and second stability region transport and stability analysis" title="High beta and second stability region transport and stability analysis" src="https://digital.library.unt.edu/ark:/67531/metadc1444115/small/"/></a></p><p>This report describes ideal and resistive studies of high-beta plasmas and of the second stability region. Emphasis is focused on supershot'' plasmas in TFIR where MHD instabilities are frequently observed and which spoil their confinement properties. Substantial results are described from the analysis of these high beta poloidal plasmas. During these studies, initial pressure and safety factor profiles were obtained from the TRANSP code, which is used extensively to analyze experimental data. Resistive MBD stability studies of supershot equilibria show that finite pressure stabilization of tearing modes is very strong in these high {beta}p plasmas. This has prompted a detailed re-examination of linear tearing mode theory in which we participated in collaboration with Columbia University and General Atomics. This finite pressure effect is shown to be highly sensitive to small scale details of the pressure profile. Even when an ad hoc method of removing this stabilizing mechanism is implemented, however, it is shown that there is only superficial agreement between resistive MBD stability computation and the experimental data. While the mode structures observed experimentally can be found computationally, there is no convincing correlation with the experimental observations when the computed results are compared with a large set of supershot data. We also describe both the ideal and resistive stability properties of TFIR equilibria near the transition to the second region. It is shown that the highest {beta} plasmas, although stable to infinite-n ideal ballooning modes, can be unstable to the so called infernal'' modes associated with small shear. The sensitivity of these results to the assumed pressure and current density profiles is discussed. Finally, we describe results from two collaborative studies with PPPL. The first involves exploratory studies of the role of the 1/1 mode in tokamaks and, secondly, a study of sawtooth stabilization using ICRF.</p>Characterization of SAES St198 zirconium-iron-tin alloy2019-02-10T20:45:37-06:00https://digital.library.unt.edu/ark:/67531/metadc1444040/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1444040/"><img alt="Characterization of SAES St198 zirconium-iron-tin alloy" title="Characterization of SAES St198 zirconium-iron-tin alloy" src="https://digital.library.unt.edu/ark:/67531/metadc1444040/small/"/></a></p><p>A waste minimization program to develop a non-oxidative stripper system based on metallic getters is being conducted. Initial development is being performed using a Zr-Fe-Sn intermetallic alloy getter procured as Stl98 from SAES Gefters/USA., Inc. This memorandum describes characterizations of physical and compositional properties of SAES Stl98. SAES Stl98 getter was supplied as very durable, cylindrical pellets made by compaction of. granules of Zr-Fe-Sn alloy up to 150 [mu]m in size. Pellet density was 5.2 g/mL corresponding to 24.8% open porosity and very little closed porosity. Bulk composition of Stl98 was 73.6 weight percent (w/o) Zr, 23.3 w/o Fe and 1.2 w/o Sn. Stl98 consists of Zr[sub 2]Fe primary phase along with four secondary phases (ZrFe[sub 2], Zr[sub 5]FeSn, [alpha]-zirconium, and [eta]-Zr[sub 4]Fe[sub 2]O[sub 0.6]). Hydriding characteristics of Stl98 are expected to differ slightly from those of Zr[sub 2]Fe because [alpha]-zirconium and, possibly, Zr[sub 5]FeSn also react with hydrogen.</p>National Radiobiology Archives Distributed Access User's Manual, Version 1. 12019-02-10T20:45:37-06:00https://digital.library.unt.edu/ark:/67531/metadc1444045/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1444045/"><img alt="National Radiobiology Archives Distributed Access User's Manual, Version 1. 1" title="National Radiobiology Archives Distributed Access User's Manual, Version 1. 1" src="https://digital.library.unt.edu/ark:/67531/metadc1444045/small/"/></a></p><p>This supplement to the NRA Distributed Access User's manual (PNL-7877), November 1991, describes installation and use of Version 1.1 of the software package; this is not a replacement of the previous manual. Version 1.1 of the NRA Distributed Access Package is a maintenance release. It eliminates several bugs, and includes a few new features which are described in this manual. Although the appearance of some menu screens has changed, we are confident that the Version 1.0 User's Manual will provide an adequate introduction to the system. Users who are unfamiliar with Version 1.0 may wish to experiment with that version before moving on to Version 1.1.</p>Integration of Transients in Axisymmetrical Cavities for Accelerators: Formulation and applications to BNL Photocathode Gun2019-02-10T20:45:37-06:00https://digital.library.unt.edu/ark:/67531/metadc1444046/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1444046/"><img alt="Integration of Transients in Axisymmetrical Cavities for Accelerators: Formulation and applications to BNL Photocathode Gun" title="Integration of Transients in Axisymmetrical Cavities for Accelerators: Formulation and applications to BNL Photocathode Gun" src="https://digital.library.unt.edu/ark:/67531/metadc1444046/small/"/></a></p><p>This note provides a sketch of the formalism used for the Integration of Transients in Axisymmetrical Cavities for Accelerators, (ITACA). Application to study the BNL Photocathode Gun via the code ITACA is also included.</p>Radiative Properties of Ash and Slag2019-02-10T20:45:37-06:00https://digital.library.unt.edu/ark:/67531/metadc1444053/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1444053/"><img alt="Radiative Properties of Ash and Slag" title="Radiative Properties of Ash and Slag" src="https://digital.library.unt.edu/ark:/67531/metadc1444053/small/"/></a></p><p>Thermal radiation plays a key role in the operation and efficiency of combustion systems, accounting for over 90% of the heat transfer. The analysis of radiative heat transfer in coal-fired boilers, combustion chambers and other energy systems requires accounting for the effects of inorganic deposits on bounding surfaces and of entrained particulates, such as pulverized coal, char, and fly-ash. These effects can be predicted; however, the accuracy in predicting the radiative properties of entrained pyrolysis (ash) and deposit layers (slag) is limited by inaccurate knowledge of the physical/chemical properties of the materials over a range of material temperatures and radiative wavelengths that is representative of conditions in practical combustion systems. The objective of this project is to make laboratory measurements of the radiative properties of extracted ash and slag deposit samples.</p>Rheological properties essential for the atomization of coal water slurries (CWS)2019-02-10T20:45:37-06:00https://digital.library.unt.edu/ark:/67531/metadc1443993/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1443993/"><img alt="Rheological properties essential for the atomization of coal water slurries (CWS)" title="Rheological properties essential for the atomization of coal water slurries (CWS)" src="https://digital.library.unt.edu/ark:/67531/metadc1443993/small/"/></a></p><p>The overall objective of this project is to perform experiments to understand the effect of high shear and extensional properties on the atomization of coal-water slurries (CWS). Several CWS were prepared and their low shear rheological properties (i.e. rheology as a function of concentration, constant shear and, additive type, stability and slip effect) performed. The stability was determined using a settling column to study the shift in mass of the CWS as a function of time. Low shear testing of the slurries were used to determine the effect of yield stress on the concentration of the slurries.</p>Catalytic fabric filtration for simultaneous NO sub x and particulate control2019-02-10T20:45:37-06:00https://digital.library.unt.edu/ark:/67531/metadc1443995/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1443995/"><img alt="Catalytic fabric filtration for simultaneous NO sub x and particulate control" title="Catalytic fabric filtration for simultaneous NO sub x and particulate control" src="https://digital.library.unt.edu/ark:/67531/metadc1443995/small/"/></a></p><p>The objective of this program is to develop advanced concepts for removal of NO{sub x} from flue gas emitted by coalfired utility boilers, or for the control of NO{sub x} formation by advanced combustion modification techniques. Funded projects are required to focus on the development of technology that significantly advances the state of the art using a process or a combination of processes capable of reducing NO{sub x}. emissions to 60 ppM or less. The concept must have successfully undergone sufficient laboratory-scale development to justify scaleup for further evaluation at the pilot scale (not to exceed 5 MWe in size). Other requirements include production of a nonhazardous waste or a salable byproduct. The concept should have application to both new and retrofit coal-fired systems. The concept should also show the potential for a 50% cost savings when compared to a commercial selective catalytic reduction (SCR) process capable of meeting the 60-ppM NO{sub x} emission limit.</p>Multiple-gap theory of toroidal Alfven waves with kinetic effects2019-02-10T20:45:37-06:00https://digital.library.unt.edu/ark:/67531/metadc1444003/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1444003/"><img alt="Multiple-gap theory of toroidal Alfven waves with kinetic effects" title="Multiple-gap theory of toroidal Alfven waves with kinetic effects" src="https://digital.library.unt.edu/ark:/67531/metadc1444003/small/"/></a></p><p>The stability of kinetic toroidal Alfven waves with multi-gap coupling is analyzed by using the two-dimensional ballooning transform. An alternate convergence scheme, based on the smallness of the inverse aspect ratio, is devised. The resulting wave functions are oscillatory and do not balloon in contrast to the wave functions of conventional ballooning theory. It is shown that the single-gap theory is a special, weak shear (s {yields} 0) limit of the formalism. Analytical and numerical results for the two fundamental branches, the ideal toroidal Alfven eigenmode (TAE), and the kinetic toroidal Alfven eigenmode (KTAE) are presented and discussed.</p>Establishment and maintenance of a Coal Sample Bank and Data Base2019-02-10T20:45:37-06:00https://digital.library.unt.edu/ark:/67531/metadc1444015/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1444015/"><img alt="Establishment and maintenance of a Coal Sample Bank and Data Base" title="Establishment and maintenance of a Coal Sample Bank and Data Base" src="https://digital.library.unt.edu/ark:/67531/metadc1444015/small/"/></a></p><p>This report discusses documentation of sample quality and deterioration. Various tasks covered under this heading include: collection of samples, sampling handling and processing; characterization of coal samples; distribution of samples to users; operation of the DOE coal data base. (VC)</p>Fusion programs in Applied Plasma Physics2019-02-10T20:45:37-06:00https://digital.library.unt.edu/ark:/67531/metadc1444017/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1444017/"><img alt="Fusion programs in Applied Plasma Physics" title="Fusion programs in Applied Plasma Physics" src="https://digital.library.unt.edu/ark:/67531/metadc1444017/small/"/></a></p><p>The Applied Plasma Physics (APP) program at General Atomics (GA) described here includes four major elements: (a) Applied Plasma Physics Theory Program, (b) Alpha Particle Diagnostic, (c) Edge and Current Density Diagnostic, and (d) Fusion User Service Center (USC). The objective of the APP theoretical plasma physics research at GA is to support the DIII-D and other tokamak experiments and to significantly advance our ability to design a commercially-attractive fusion reactor. We categorize our efforts in three areas: magnetohydrodynamic (MHD) equilibria and stability; plasma transport with emphasis on H-mode, divertor, and boundary physics; and radio frequency (rf). The objective of the APP alpha particle diagnostic is to develop diagnostics of fast confined alpha particles using the interactions with the ablation cloud surrounding injected pellets and to develop diagnostic systems for reacting and ignited plasmas. The objective of the APP edge and current density diagnostic is to first develop a lithium beam diagnostic system for edge fluctuation studies on the Texas Experimental Tokamak (TEXT). The objective of the Fusion USC is to continue to provide maintenance and programming support to computer users in the GA fusion community. The detailed progress of each separate program covered in this report period is described in the following sections.</p>Thermodynamics and surface structure of coals2019-02-10T20:45:37-06:00https://digital.library.unt.edu/ark:/67531/metadc1448620/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1448620/"><img alt="Thermodynamics and surface structure of coals" title="Thermodynamics and surface structure of coals" src="https://digital.library.unt.edu/ark:/67531/metadc1448620/small/"/></a></p><p>We propose that most pores in coals are closed. They cannot be reached by diffusion through a pore network but can only be reached by diffusion through solid coal. Co{sub 2} gives accurate total surface areas because it dissolves in and rapidly diffuses through solid coals, reaching all the pores. This surface area is irrelevant to materials which are only slightly soluble or insoluble in coals for these can only reach a small portion of the pores. Thus, the diffusion rate controls the determined pore size. For the large molecules involved in direct-liquefaction and most organic reactions, the effective surface areas of these coals are very small, only a few m{sup 2}/g. The consequences of this structure model for coal processing and reaction are significant. These coals cannot be considered high (hundreds of m{sup 2}/g) surface area materials which are easily accessible. They are low surface area solids only slightly permeable to hydrocarbons. The advantages of fine grinding are obvious. Using solvents which will cause coal to become rubbery rather than glassy will enhance diffusion and thus reactivity.</p>Liquid chromatographic analysis of coal surface properties2019-02-10T20:45:37-06:00https://digital.library.unt.edu/ark:/67531/metadc1448625/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1448625/"><img alt="Liquid chromatographic analysis of coal surface properties" title="Liquid chromatographic analysis of coal surface properties" src="https://digital.library.unt.edu/ark:/67531/metadc1448625/small/"/></a></p><p>Experimental procedures of obtaining experimental data on equilibrium adsorption of probe compounds on coal were developed. A computer program was developed to compute equilibrium adsorption of probe compounds on coal with experimental data. Developments of experimental procedures of obtaining experimental data on dynamic adsorption of probe compounds on coal were attempted, but not finalized. Experiments on equilibrium adsorption of various alcohols on Illinois No. 6 coal will be conducted to investigate surface properties of this coal in the presence of water.</p>D2PC sensitivity analysis2019-02-10T20:45:37-06:00https://digital.library.unt.edu/ark:/67531/metadc1448608/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc1448608/"><img alt="D2PC sensitivity analysis" title="D2PC sensitivity analysis" src="https://digital.library.unt.edu/ark:/67531/metadc1448608/small/"/></a></p><p>The Chemical Hazard Prediction Model (D2PC) developed by the US Army will play a critical role in the Chemical Stockpile Emergency Preparedness Program by predicting chemical agent transport and dispersion through the atmosphere after an accidental release. To aid in the analysis of the output calculated by D2PC, this sensitivity analysis was conducted to provide information on model response to a variety of input parameters. The sensitivity analysis focused on six accidental release scenarios involving chemical agents VX, GB, and HD (sulfur mustard). Two categories, corresponding to conservative most likely and worst case meteorological conditions, provided the reference for standard input values. D2PC displayed a wide variety of sensitivity to the various input parameters. The model displayed the greatest overall sensitivity to wind speed, mixing height, and breathing rate. For other input parameters, sensitivity was mixed but generally lower. Sensitivity varied not only with parameter, but also over the range of values input for a single parameter. This information on model response can provide useful data for interpreting D2PC output.</p>