Serial/Series Title
Habitat Evaluation Procedures Report
5
Proceedings of the Workshop on Geothermal Reservoir Engineering
4
Analysis of Devonian Black Shales in Kentucky for Potential Carbon Dioxide Sequestration and Enhanced Natural Gas Production Quarterly Report
3
Development of More-Efficient Gas Flooding Applicable to Shallow Reservoirs Progress Report
3
Petroleum Supply Monthly
3
Annual Illness and Injury Surveillance Report
2
Establishment of an Industry-Driven Consortium Focused on Improving the Production Performance of Domestic Stripper Wells Quarterly Report
2
Fiscal Year 2001
2
Fiscal Year 2002
2
Fiscal Year 2003
2
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Effects of Alder Mine on the Water, Sediments, and Benthic Macroinvertebrates of Alder Creek, 1998 Annual Report.
The Alder Mine, an abandoned gold, silver, copper, and zinc mine in Okanogan County, Washington, produces heavy metal-laden effluent that affects the quality of water in a tributary of the Methow River. The annual mass loading of heavy metals from two audits at the Alder Mine was estimated to exceed 11,000 kg per year. In this study, water samples from stations along Alder Creek were assayed for heavy metals by ICP-AES and were found to exceed Washington State's acute freshwater criteria for cadmium (Cd), copper (Cu), selenium (Se), and zinc (Zn).
Date:
May 28, 1999
Creator:
Peplow, Dan
Object Type:
Report
System:
The UNT Digital Library
Efficient biased random bit generation for parallel processing
A lattice gas automaton was implemented on a massively parallel machine (the BBN TC2000) and a vector supercomputer (the CRAY C90). The automaton models Burgers equation {rho}t + {rho}{rho}{sub x} = {nu}{rho}{sub xx} in 1 dimension. The lattice gas evolves by advecting and colliding pseudo-particles on a 1-dimensional, periodic grid. The specific rules for colliding particles are stochastic in nature and require the generation of many billions of random numbers to create the random bits necessary for the lattice gas. The goal of the thesis was to speed up the process of generating the random bits and thereby lessen the computational bottleneck of the automaton.
Date:
September 28, 1994
Creator:
Slone, D.M.
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Guidance Document for Kentucky's Oil and Gas Operators
This technical report is a summary of the accomplishments toward completion of ''A Guidance Document for Kentucky's Oil and Gas Operators''. During this quarter, the document received continued review and editing in an electronic format to satisfy the United States Department of Energy (DOE). Comments received from oil and gas operators reviewing this document prompted contact to be made with the United States Environmental Protection Agency (U. S. EPA) to develop an addendum section to provide better explanation of U.S. EPA requirements for Class II injection wells in Kentucky. During May of this year the consultant hired to develop the Class II, UIC addendum section to the guidance document met a second time with the U.S. EPA and state personnel responsible for regulation of the Class II, UIC program in Kentucky, to review a draft of the document. This draft was discussed during the meeting with the U.S. EPA and will receive additional editing and comment during the next quarter.
Date:
October 28, 1999
Creator:
Rick, Bender
Object Type:
Report
System:
The UNT Digital Library
Unpublished letter from US Geological Survey Scientists to the editor of the New York Times Magazine regarding William J. Broads` November 18, 1990 article on Yucca Mountain
This letter documents objections of a group of US Geological Survey Scientists to an article appearing November 18, 1990 in New York Times Magazine. The article was written by William J. Broad and dealt with a hypothesis of Jerry S. Szymanski. The letter addressed areas of concern; including hydrology, geology, tectonics, and the integrity of the scientists and their conclusions. (SM)
Date:
November 28, 1990
Creator:
Dudley, W. W. Jr.; Buono, A.; Carr, M. D.; Downey, J. S.; Ervin, E. M.; Fox, K. F. Jr. et al.
Object Type:
Report
System:
The UNT Digital Library
A Fission-Powered Interstellar Precursor Mission
An 'interstellar precursor mission' lays the groundwork for eventual interstellar exploration by studying the interstellar medium and by stretching technologies that have potential application for eventual interstellar exploration. The numerous scientific goals for such a mission include generating a 3-D stellar map of our galaxy, studying Kuiper-belt and Oort cloud objects, and observing distant objects using the sun's gravitational lens as the primary of an enormous telescope. System equations are developed for a space tug which propels a 2500-kg scientific payload to 550 astronomical units in about 20 years. The tug to transport this payload uses electric propulsion with an Isp of 15,000 seconds and a fission reactor with a closed Brayton cycle to genemte the electricity. The optimal configuration may be to thrust for only about 6 years and then coast for the remaining 14 pars. This spacecraft does not require any physics breakthroughs or major advances in technology. The fission power syslem can be engineered and built by drawing upon known technologies developed for relatgd systems over the past 40 years. The tug system would eventually reach 1000 a.u in 33 years, and would have adequate power to relay large amounts of data throughout its journey.
Date:
October 28, 1998
Creator:
Lipinski, Ronald J.; Lenard, Roger X.; Wright, Steven A. & West, John L.
Object Type:
Article
System:
The UNT Digital Library
Measurement of the {sup 44}Ti half-life and its significance for supernova.
In 1998, we reported the three-laboratory measurement of the {sup 44}Ti half-life which was determined relative to the well known value (5.2714 {+-} 0.0005 yr) of the {sup 60}Co half-life. We have continued the measurement at Argonne and Jerusalem and inclusion of data points for additional two years does not change our published value of 59.0 {+-} 0.6 yr.
Date:
August 28, 1999
Creator:
Ahmad, I.; Greene, J. P.; Kutschera, W. & Paul, M.
Object Type:
Article
System:
The UNT Digital Library
A Study of the Relationship of Geological Formation to the NORM
Naturally Occurring Radioactive Materials (NORM) is a common and costly contaminant of produced waters associated with natural gas production and exploration. One way of combating this problem is by identifying the problem beforehand. Our approach to this problem involves development of NORM prediction capabilities based on the geological environment. During quarter thirteen of this project, work has continued under the recently approved revisions. We are also in the final stages of sample acquisition from new sampling sites.
Date:
October 28, 1999
Creator:
Bursh, Talmage P. & Chriss, Derald
Object Type:
Report
System:
The UNT Digital Library
Application of Reservoir Characterization and Advanced Technology to Improve Recovery and Economics in a Lower Quality Shallow Shelf Carbonate Reservoir
The Class 2 Project at West Welch was designed to demonstrate the use of advanced technologies to enhance the economics of improved oil recovery (IOR) projects in lower quality Shallow Shelf Carbonate (SSC) reservoirs, resulting in recovery of additional oil that would otherwise be left in the reservoir at project abandonment. Accurate reservoir description is critical to the effective evaluation and efficient design of IOR projects in the heterogeneous SSC reservoirs.
Date:
October 28, 1999
Creator:
Hickman, Scott T.; L., Justice James & Taylor, Archie R.
Object Type:
Report
System:
The UNT Digital Library
Phonon densities of states and related thermodynamic properties of high temperature ceramics.
Structural components and semiconductor devices based on silicon nitride, aluminum nitride and gallium nitride are expected to function more reliably at elevated temperatures and at higher levels of performance because of the strong atomic bonding in these materials. The degree of covalency, lattice specific heat, and thermal conductivity are important design factors for the realization of advanced applications. We have determined the phonon densities of states of these ceramics by the method of neutron scattering. The results provide a microscopic interpretation of the mechanical and thermal properties. Moreover, experimental data of the static, structures, and dynamic excitations of atoms are essential to the validation of interparticle potentials employed for molecular-dynamics simulations of high-temperature properties of multi-component ceramic systems. We present an overview of neutron-scattering investigations of the atomic organization, phonon excitations, as well as calculations of related thermodynamic properties of Si{sub 3}N{sub 4}, {beta}-sialon, AlN and GaN. The results are compared with those of the oxide analogs such as SiO{sub 2} and Al{sub 2}O{sub 3}.
Date:
August 28, 1998
Creator:
Loong, C.-K.
Object Type:
Article
System:
The UNT Digital Library
Robotic dismantlement systems at the CP-5 reactor D&D project.
The Chicago Pile 5 (CP-5) Research Reactor Facility is currently undergoing decontamination and decommissioning (D&D) at the Argonne National Laboratory (ANL) Illinois site. CP-5 was the principle nuclear reactor used to produce neutrons for scientific research at Argonne from 1954 to 1979. The CP-5 reactor was a heavy-water cooled and moderated, enriched uranium-fueled reactor with a graphite reflector. The CP-5 D&D project includes the disassembly, segmentation and removal of all the radioactive components, equipment and structures associated with the CP-5 facility. The Department of Energy's Robotics Technology Development Program and the Federal Energy Technology Center, Morgantown Office provided teleoperated, remote systems for use in the dismantlement of the CP-5 reactor assembly for tasks requiring remote dismantlement as part of the EM-50 Large-Scale Demonstration Program (LSDP). The teleoperated systems provided were the Dual Arm Work Platform (DAWP), the Rosie Mobile Teleoperated Robot Work System (ROSIE), and a remotely-operated crane control system with installed swing-reduction control system. Another remotely operated apparatus, a Brokk BM250, was loaned to ANL by the Princeton Plasma Physics Laboratory (PPPL). This machine is not teleoperated and was not part of the LSDP, but deserves some mention in this discussion. The DAWP is a robotic dismantlement system that …
Date:
October 28, 1998
Creator:
Seifert, L. S.
Object Type:
Article
System:
The UNT Digital Library
IMPACTT5A model : enhancements and modifications since December 1994 - with special reference to the effect of tripled-fuel-economy vehicles on fuel-cycle energy and emissions.
Version 5A of the Integrated Market Penetration and Anticipated Cost of Transportation Technologies (IMPACTT5A) model is a spreadsheet-based set of algorithms that calculates the effects of advanced-technology vehicles on baseline fuel use and emissions. Outputs of this Argonne National Laboratory-developed model include estimates of (1) energy use and emissions attributable to conventional-technology vehicles under a baseline scenario and (2) energy use and emissions attributable to advanced- and conventional-technology vehicles under an alternative market-penetration scenario. Enhancements to IMPACIT made after its initial documentation in December 1994 have enabled it to deal with a wide range of fuel and propulsion system technologies included in Argonne's GREET model in a somewhat modified three-phased approach. Vehicle stocks are still projected in the largely unchanged STOCK module. Vehicle-miles traveled, fuel use, and oil displacement by advanced-technology vehicles are projected in an updated USAGE module. Now, both modules can incorporate vehicle efficiency and fuel share profiles consistent with those of the Partnership for a New Generation of Vehicles. Finally, fuel-cycle emissions of carbon monoxide, volatile organic compounds, nitrogen oxides, toxics, and greenhouse gases are computed in the EMISSIONS module via an interface with the GREET model that was developed specifically to perform such calculations. Because of …
Date:
August 28, 1999
Creator:
Mintz, M. M. & Saricks, C. L.
Object Type:
Report
System:
The UNT Digital Library
Comparison of gridded versus observation data to initialize ARAC dispersion models for the Algeciras, Spain steel mill CS-137 release
On May 30, 1998 scrap metal containing radioactive Cesium-137 (Cs-137) was accidentally melted in a furnace at the Acerinox steel mill in Algeciras, Spain. Cs-137 was released from the mill's smokestack, and spread across the western Mediterranean Sea to France and Italy and beyond. The first indication of the release was radiation levels up to 1000 times background reported by Swiss, French, and Italian authorities during the following two weeks. Initially no elevated radiation levels were detected over Spain. A release of hazardous material to the atmosphere is the type of situation the Atmospheric Release Advisory Capability (ARAC) emergency response organization was designed to address. The amount and exact time of the release were unknown, though the incident was thought to have taken place during the last week in May. Using air concentration measurements supplied by colleagues of ARAC in Spain, France, Switzerland, Italy, Sweden, Russia and the European Union, ARAC meteorologists estimated the magnitude and timing of the release (Vogt, 1999). Correctly locating the downwind footprint is the most important goal of emergency response modeling. In this study, we compare predicted results for the Algeciras event based on four wind data sources: (1) US Navy Operational Global Atmospheric Prediction …
Date:
May 28, 1999
Creator:
Aluzzi, F J; Pace, J C; Pobanz, B M & Vogt, P J
Object Type:
Article
System:
The UNT Digital Library
2nd Workshop on Satellites for Solar Energy Assessments
A Collection of Presentations on new techniques for developing climatological estimates of the solar resource at all locations on earth at a resolution of 100km, and of developing estimates at half-hour intervals at resolutions of 10 km or less in specific locations.
Date:
June 28, 1999
Creator:
Renne, D.
Object Type:
Article
System:
The UNT Digital Library
Electron beam bunch length characterizations using incoherent and coherent radiation on the APS SASE FEL project.
The Advanced Photon Source (APS) injector linac has been reconfigured with a low-emittance rf thermionic gun and a photocathode (PC) rf gun to support self-amplified spontaneous emission (SASE) free-electron laser (FEL) experiments. One of the most critical parameters for optimizing SASE performance (gain length) is the electron beam peak current, which requires a charge measurement and a bunch length measurement capability. We report here initial measurements of the latter using both incoherent optical transition radiation (OTR) and coherent transition radiation (CTR), A visible light Hamarnatsu C5680 synchroscan streak camera was used to measure the thermionic rf gun beam's bunch length ({sigma} {approximately}2 to 3ps) via OTR generated by the beam at 220 MeV and 200 mA macropulse average current. In addition, a CTR monitor (Michelson Interferometer) based on a Golay cell as the far infrared (FIR) detector has been installed at the 40-MeV station in the beamline. Initial observation s of CTR signal strength variation with gun a-magnet current and interferograms have been obtained. Progress in characterizing the beam at these locations and a comparison to other bunch length determinations will be presented.
Date:
August 28, 1999
Creator:
Berg, W. J.; Happek, U.; Lewellen, J. W.; Lumpkin, A. H.; Sereno, N. S. & Yang, B. X.
Object Type:
Article
System:
The UNT Digital Library
Simulations of creep in ductile-phase toughened Nb{sub 5}Si{sub 3}/Nb in-situ composites
The primary and steady-state creep behavior of ductile-phase toughened Nb{sub 5}Si{sub 3}/Nb in-situ composites has been simulated using analytical and finite element (FE) continuum techniques. The microstructure of these composites is complex, consisting of large, elongated primary dendrites of the ductile (Nb) solid-solution phase in a eutectoid matrix with the silicide as the continuous phase. This microstructure has been idealized to facilitate the modeling; the effects of these idealizations on the predicted composite creep rates are discussed. Further, it has been assumed that the intrinsic creep behavior of each phase within the composite is the same as that of the corresponding bulk material. Thus, the experimentally measured creep properties of the bulk Nb{sub 5}Si{sub 3} and (Nb) phases have been analyzed to provide the required material constants in the creep constitutive equation. Model predictions of the steady-state composite creep rate have been compared with the experimental results for a Nb-10 at.% Si alloy. While accurate at low stress, the models under predict the composite creep rate at large stresses because the composite stress exponent is under predicted. In the case of primary creep, the models somewhat over predict the composite creep strain but are reasonably accurate given uncertainties in the …
Date:
November 28, 1994
Creator:
Henshall, G. A.; Strum, M. J.; Subramanian, P. R. & Mendiratta, M. G.
Object Type:
Report
System:
The UNT Digital Library
The Salix Consortium in New York
Energy crops for electrical production are being given a boost by the Salix Consortium, an association of 20 corporations and industrial, government, farming, and research organizations. The consortium supports commercial development of willows for generating electricity, which are being grown for utilities across the Northeast region of the U.S. for use in cofiring with coal in existing power plants.
Date:
September 28, 1998
Creator:
Wulf, T. & Jones, J.
Object Type:
Book
System:
The UNT Digital Library
Two-station phase velocity determination for structure in North Africa
The seismic structure of North Africa is poorly understood due to the relative paucity of stations and seismicity when compared to other continental regions of the world. A better understanding of the velocity structure in this area will allow improved models of travel times and regional phase amplitudes. Such models will improve location and identification capability in this region leading to more effective monitoring of the Comprehensive Nuclear-Test-Ban Treaty. Using regional-to-teleseismic Rayleigh and Love waves that traverse the area we can obtain information about the region's seismic structure by examining phase velocity as a function of period. We utilize earthquakes from the tectonically active regions bounding North Africa (Mediterranean, Red Sea, East African Rift, and Mid-Atlantic Ridge) recorded at broadband seismic stations distributed throughout the region. A two-station method is utilized to determine phase velocity information along the interstation segment of the ray path. The two-station method provides particular advantage in this region as it dramatically increases the number of events available to provide pure North African sampling. Bandpass filters are applied to the seismograms so that peaks and troughs may be correlated. The phase is unwrapped and a difference curve computed. The difference curve is then converted to a …
Date:
July 28, 1999
Creator:
Hazler, S; Pasyanos, M; Sheehan, A & Walter, W
Object Type:
Article
System:
The UNT Digital Library
TEAM (Technologies Enabling Agile Manufacturing) macro planner requirements guide: Version 1.0
The Macro Planner will provide required resource identities, bill of material list, routing sequences and identities of all supporting information to the Shop Floor Control System to enable the actual manufacturing activities. The Macro Planner must also collect manufacturing performance data from the shop floor to effectively measure the plan`s performance. The critical feedback will be evaluated during closure of the business cycle and provide the metrics on cost and quality to the planning function. This document is intended to describe the requirements for a Macro Planner system which supports the above environment. The Macro planner should progress to a logically, rule driven processor to automate major portions of the planning cycle. It should do the following: support concurrent product/process design; define a globally optimized manufacturing plan for realization of product; compile a complete manufacturing plan script (routing and operational detail documentation); be based on 3-D CAD models imported via STEP standards; and define an Enterprise Resource Base that maps manufacturing capabilities to component features.
Date:
March 28, 1995
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
An Improved Measurement of the b Quark Fragmentation Function in Z{sup 0} Decays at SLD
We present preliminary results of a new measurement of the b quark fragmentation function in Z{sup 0} decays using a novel kinematic B hadron energy reconstruction technique. The measurement is performed using 150,000 hadronic Z{sup 0} events recorded in the SLD experiment at SLAC between 1996 and 1997. The small and stable SLC beam spot and the CCD-based vertex detector are used to reconstruct topological B-decay vertices with high efficiency and purity, and to provide precise measurements of the kinematic quantities used in this technique. We measure the B energy with good efficiency and resolution over the full kinematic range. We compare the scale B hadron energy distribution with several functional forms of the B hadron energy distribution and predictions of several models of b quark fragmentation. Several functions including JETSET + Peterson are excluded by the data. The average scaled energy of the weakly decaying B hadron is measured to be x{sub B} = 0.719 {+-} 0.005 (stat) {+-} 0.007 (syst) {+-} 0.001 (model) (preliminary).
Date:
May 28, 1999
Creator:
Dong, Danning
Object Type:
Report
System:
The UNT Digital Library
JET Radiative Mantle Experiments in ELMy H-Mode
Radiative mantle experiments were performed on JET ELMy H-mode plasmas. The Septum configuration was used where the X-point is embedded into the top of the Septum. Argon radiated 50% of the input power from the bulk plasma while Z{sub eff} rose from an intrinsic level of 1.5 to about 1.7 due to the injected Argon. The total energy content and global energy confinement time decreased 15% when the impurities were introduced. In contrast, the effective thermal diffusivity in the core confinement region (r/a = .4--.8) decreased by 30%. Usually, JET ELMy H-mode plasmas have confinement that is correlated to the edge pedestal pressure. The radiation lowered the edge pedestal and consequently lowered the global confinement. Thus the confinement was changed by a competition between the edge pedestal reduction lowering the confinement and the weaker RI effect upon the core transport coefficients raising the confinement. The ELM frequency increased from 10 Hz Type I ELMs, to 200 Hz type III ELMs. The energy lost by each ELM reduced to 0.5% of the plasma energy content.
Date:
September 28, 1999
Creator:
Budny, R.; Coffey, I.; Dumortier, P.; Grisolia, C.; Strachan, J.D. & al, et
Object Type:
Article
System:
The UNT Digital Library
Design and Development of Gas-Liquid Cylindrical Cyclone Compact Separators for Three-Phase Flow
The objective of this five-year project (October, 1997--September, 2002) is to expand the current research activities of Tulsa University Separation Technology Projects (TUSTP) to multiphase oil/water/gas separation. This project will be executed in two phases. Phase I (1997--2000) will focus on the investigations of the complex multiphase hydrodynamic flow behavior in a three-phase Gas-Liquid Cylindrical Cyclone (GLCC) Separator. The activities of this phase will include the development of a mechanistic model, a computational fluid dynamics (CFD) simulator, and detailed experimentation on the three-phase GLCC. The experimental and CFD simulation results will be suitably integrated with the mechanistic model. In Phase II (2000--2002), the developed GLCC separator will be tested under high pressure and real crudes conditions. This is crucial for validating the GLCC design for field application and facilitating easy and rapid technology deployment. Design criteria for industrial applications will be developed based on these results and will be incorporated into the mechanistic model by TUSTP.
Date:
October 28, 1999
Creator:
Mohan, Ram S. & Shoham, Ovadia
Object Type:
Report
System:
The UNT Digital Library
A Study of the Relationship of Geological Formation to the NORM
Naturally Occurring Radioactive Materials (NORM) is a common and costly contaminant of produced waters associated with natural gas production and exploration. One way of combating this problem is by identifying the problem beforehand. Our approach to this problem involves development of NORM prediction capabilities based on the geological environment. During quarter sixteen of this project, work has continued under the approved revisions. We have received the first of our produced water samples and analysis is underway. In addition, the QA/QC plans have been completed and are currently being implemented.
Date:
October 28, 1999
Creator:
Bursh, Talmage P. & Chriss, Derald
Object Type:
Report
System:
The UNT Digital Library
Nuclear excitation by electronic transition (NEET).
We present a report on recent measurements using the Advanced Photon Source at Argonne National Laboratory to explore the phenomenon of Nuclear Excitation by Electronic Transition (NEET) in the {sup 189}Os atomic/nuclear system.
Date:
April 28, 1999
Creator:
Ahmad, I.; Dunford, R. W.; Esbensen, H.; Gemmell, D. S.; Kanter, E. P.; Kraessig, B. et al.
Object Type:
Article
System:
The UNT Digital Library
Bench-Scale Enhanced Sludge Washing and Gravity Settling of Hanford Tank S-107 Sludge
This report summarizes the work performed with sludge from Hanford Site single-shell Tank 241-S-107 during FY 98. The tests described in this report support the development of the baseline Hanford tank sludge pretreatment flowsheet that includes the enhanced sludge washing (ESW) and settle/decant process.
Date:
September 28, 1998
Creator:
Brooks, K. P.; Bontha, J. R.; Golcar, G. R.; Myers, R. L.; Rappe, K. G. & Rector, D. R.
Object Type:
Report
System:
The UNT Digital Library