Partner
UNT Libraries Special Collections
211
Oklahoma Historical Society
190
UNT Libraries Government Documents Department
158
Sterling Municipal Library
9
Alvin Community College
7
UNT Libraries
7
Texas Historical Commission
6
Comanche Public Library
4
Red River County Public Library
4
San Antonio Public Library
4
60 More
Collection
KXAS-NBC 5 News Collection
175
Office of Scientific & Technical Information Technical Reports
147
Oklahoma Publishing Company Photography Collection
141
Texas Digital Newspaper Program
120
Tocker Foundation Grant
68
Oklahoma Digital Newspaper Program
53
Center for Media Production Collection
13
Chickasha Newspaper Collection
11
D. Jack Davis Art Education Collection
10
LGBT Collections
10
100 More
Degree Department
Country
Year
Month
Day
Use of experience data for DOE seismic evaluations
As dictated by DOE Order 5480.28, seismic evaluations of essential systems and components at DOE facilities will be conducted over the next several years. For many of these systems and components, few, if any, seismic requirements applied to the original design, procurement, installation, and maintenance process. Thus the verification of the seismic adequacy of existing systems and components presents a difficult challenge. DOE has undertaken development of the criteria and procedures for these seismic evaluations that will maximize safety benefits in a timely and cost effective manner. As demonstrated in previous applications at DOE facilities and by the experience from the commercial nuclear power industry, use of experience data for these evaluations is the only viable option for most existing systems and components. This paper describes seismic experience data, the needs at DOE facilities, the precedent of application at nuclear power plants and DOE facilities, and the program being put in place for the seismic verification task ahead for DOE.
Date:
September 30, 1993
Creator:
Barlow, M. W.; Budnitz, R.; Eder, S. J. & Eli, M. W.
Object Type:
Article
System:
The UNT Digital Library
Use of Cloud Observations and Mesoscale Meteorology Models to Evaluate and Improve Cloud Parameterizations. Technical Progress Report, 1 October 1992--30 September 1993
This research program utilizes satellite and surface-derived cloud observations together with standard meteorological measurements to evaluate and improve our ability to accurately diagnose cloud coverage. Results of this research will be used to compliment existing or future parameterizations of cloud effects in general circulation models, since nearly all cloud parameterizations must specify a fractional area of cloud coverage when calculating radiative or dynamic cloud effects, and current parameterizations rely on rather crude cloud cover estimates. During the first phase of this research program, our goal is to evaluate and improve the methods for calculating cloud cover within a mesoscale meteorology model. To accomplish this, a mesoscale meteorology model will be quantitatively evaluated using available cloud cover databases, including the US Air Force 3DNEPH and RTNEPH satellite-derived cloud fields, as well as CART data as they become available. During the second phase of this research, the cloud cover data and improved parameterizations of cloud coverage developed during the first phase will be incorporated into a mesoscale meteorology model. Model forecasts which utilize the observed cloud coverage and depth should be improved relative to forecasts which crudely specify cloud properties.
Date:
September 30, 1993
Creator:
Walcek, C. J.
Object Type:
Report
System:
The UNT Digital Library
Clean coal technology: Export finance programs
Participation by US firms in the development of Clean Coal. Technology (CCT) projects in foreign countries will help the United States achieve multiple national objectives simultaneously--addressing critical goals related to energy, environmental technology, industrial competitiveness and international trade. US participation in these projects will result in an improved global environment, an improvement in the balance of payments and an increase in US jobs. Meanwhile, host countries will benefit from the development of economically- and environmentally-sound power facilities. The Clean Air Act Amendments of 1990 (Public Law 101-549, Section 409) as supplemented by a requirement in the Energy Policy Act of 1992 (Public Law 102-486, Section 1331(f)) requires that the Secretary of Energy, acting through the Trade Promotion Coordinating Committee Subgroup on Clean Coal Technologies, submit a report to Congress with information on the status of recommendations made in the US Department of Energy, Clean Coal Technology Export Programs, Report to the United States Congress, February 1992. Specific emphasis is placed on the adequacy of financial assistance for export of CCTS. This report fulfills the requirements of the Act. In addition, although this report focuses on CCT power projects, the issues it raises about the financing of these projects are also …
Date:
September 30, 1993
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
[Photograph 2012.201.B0975.0498]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Construction is under way on Penn Crossing shopping center, a $12 million development at NW 23 and Pennsylvania."
Date:
September 30, 1993
Creator:
Southerland, Paul B.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Ionization in Liquids. Progress Report, November 1, 1990--October 31, 1993
Studies on use of buckminister fullerines as a test subject to understand electron-related processes in radiobiology are described.
Date:
April 30, 1993
Creator:
Bakale, G.
Object Type:
Report
System:
The UNT Digital Library
Pulsed Atmospheric Fluidized Bed Combustion. Technical Progress Report, July 1993--September 1993
This quarterly report is broken down between design and the status of the fabrication work being performed. The design section is divided between the following sections: Site layout, foundation design, structural design, piping design, pulse combustor components, and electrical & instrumentation design. As reported in the last quarterly report the location area of the PAFBC in the Clemson Energy Facility was inspected with a view to finalize the layout of the PAFBC plant. Some adjustments were made to the layout to accommodate Clemson University`s requirements and the available space. The most important changes are that the boiler and economizer were relocated in the structure above ground level in order to reduce the size of the footprint of the plant. Figure 1 is the plan view of the current layout. Figures 2 through 6 present different elevation views of the layout. The design of foundations for the entire plant is currently being executed by Industra Engineers Inc. of Greenville, SC. The different weights of various equipment located close to each other precludes the provision of independent foundations for each piece of equipment. One monolithic foundation platform for the whole area proves to be more economical for the current layout. In this …
Date:
October 30, 1993
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
FY 1993 report on aluminum-nitrate testing at the ETF
This report summarizes the progress of the Aluminum Nitrate Nonhydrate (ANN) testing program at the F/H-Area Effluent Treatment Facility (ETF) for Fiscal Year 1993. Three tests were conducted in the months of February, April, and September. The tests yielded data that validated earlier conclusions that the addition of ANN to non-routine feed has a positive effect on the performance of ETF`s submicron filtration unit. Performance was observed to increase from 30--309%, depending on the season. The data also supports SRTC`s earlier conclusion that an optimal aluminum concentration exists in the range of 30--40 ppm, and concentrations above this range begin to retard filtration performance. A rudimentary mathematical model that would predict Stage 1 flux was also developed during FY93. The model allowed for a more concise comparison of filter test runs, as well as increase the efficiency of the testing program by allowing shorter test runs to be conducted. It is postulated that the model can be further optimized to include aluminum concentration and time of year as independent variables that determine Stage 1 flux. Such a model should unequivocally prove the merits of pretreating ETF`s wastewater with aluminum nitrate. To proceed with the development of the model, further testing …
Date:
September 30, 1993
Creator:
Goodman, M. D. D. & Wise, M. D.
Object Type:
Report
System:
The UNT Digital Library
Utilizing a Russian space nuclear reactor for a United States space mission: Systems integration issues
The Nuclear Electric Propulsion Space Test Program (NEPSTP) has developed a cooperative relationship with several institutes of the former Soviet Union to evaluate Russian space hardware on a US spacecraft One component is the Topaz II Nuclear Power System; a built and flight qualified nuclear reactor that has yet to be tested in space. The access to the Topaz II reactor provides the NEPSTP with a rare opportunity; to conduct an early flight demonstration of nuclear electric propulsion at a relatively low cost. This opportunity, however, is not without challenges. Topaz II was designed to be compatible with Russian spacecraft and launch vehicles. It was manufactured and flight qualified by Russian techniques and standards and conforms to safety requirements of the former Soviet Union, not the United States. As it is desired to make minimal modifications to the Topaz II, integrating the reactor system with a United States spacecraft and launch vehicle presents an engineering challenge. This paper documents the lessons teamed regarding the integration of reactor based spacecraft and also some insight about integrating Russian hardware. It examines the planned integration flow along with specific reactor requirements that affect the spacecraft integration including American-Russian space system compatibility.
Date:
September 30, 1993
Creator:
Reynolds, E.; Schaefer, E.; Polansky, G.; Lacy, J. & Bocharov, A.
Object Type:
Article
System:
The UNT Digital Library
Radiolytic Gas Generation in Salt Cake Quality Assurance Plan
High-level radioactive wastes are stored in large, steel tanks in the Savannah River Site`s Tank Farms. The liquid levels in these tanks are monitored to detect leakage of waste out of tanks or leakage of liquids into the tanks. Recent unexplained level fluctuations in high-level waste (HLW) tanks have caused High Level Waste Engineering (HLWE) to develop a program to better understand tank level behavioral Interim Waste Technology (IWT) has been requested by HLWE to obtain data which will lead to a better understanding of the radiolytic generation of gases in salt cake. A task plan has been written in response to this request. This document details the controls necessary to ensure the quality of the results of the activities described in the task plan.
Date:
August 30, 1993
Creator:
Walker, D. D.
Object Type:
Report
System:
The UNT Digital Library
West Hackberry Tertiary Project. Quarterly technical progress report, September 3, 1993--December 3, 1993
The goal of the West Hackberry Tertiary Project is to demonstrate the technical and economic feasibility combining air injection with the Double Displacement Process for tertiary oil recovery. The Double Displacement Process is the gas displacement of a water invaded oil column for the purpose of recovering oil through gravity drainage. The novel aspect of this project is the use of air as the injection fluid. The target reservoirs for the project are the Camerina C- 1,2,3 Sands located on the west flank of West Hackberry Field in Cameron Parish, Louisiana. If successful, this project win demonstrate that the use of air injection in the Double Displacement Process can economically recover oil in reservoirs where tertiary oil recovery is presently uneconomical.
Date:
November 30, 1993
Creator:
Fassihi, M. R. & Gillham, T. H.
Object Type:
Report
System:
The UNT Digital Library
Hydrogeochemical and production controls on NORM in oil- and gas- field operations. Technical progress report, January 1, 1993--March 31, 1993
This project is designed to investigate the nature of geochemical, geological, and production parameters that control the occurrence of naturally occurring radioactive materials (NORM) in oil-and gas-field operations. Relations between reservoir setting and NORM content of brine and scale will be interpreted on the basis of formation brines and production-equipment scales collected at field sites for detailed chemical and mineralogical analyses. During the first quarter of 1993, we concentrated on gathering all available information concerning the distribution of NORM in Texas oil and gas fields, the geochemical behavior of uranium, thorium, and radium in formation water, the physical and chemical conditions that cause radium to be released from geologic formations to produced water, the geochemical conditions that cause scale to form, and the chemical factors that determine the NORM content of scale. Now that we have compiled all available published reports of production-water chemistry that include radium measurements and scale composition, we are ready to collect new scale and water samples and perform analyses. With assistance from the Railroad Commission of Texas we are beginning to identify specific oil and gas fields for sampling. These activities will be the focus of our efforts during the second quarter of 1993.
Date:
April 30, 1993
Creator:
Fisher, R. S.
Object Type:
Report
System:
The UNT Digital Library
A coal-fired combustion system for industrial process heating applications. Quarterly technical progress report, July 1993--September 1993
This advanced combustion system research program is for the development of innovative coal-fired process heaters which can be used for high temperature melting, smelting and waste vitrification processes. The process heater systems to be developed have multiple use applications; however, the Phase 3 research effort is being focused on the development of a process heater system to be used for producing value added vitrified glass products from boiler/incinerator ashes and industrial wastes. The primary objective of the Phase 3 project is to develop and integrate all the system components, from fuel through total system controls, and then test the complete system in order to evaluate its potential marketability. During the past quarter, the major effort was completing some of the system modification installation designs, completing industry funded testing, developing a surrogate TSCA ash composition, and completing the TSCA ash Test Plan. The installation designs will be used for the equipment modifications planned for the end of CY 93. The industry funded testing consisted of vitrifying Spent Aluminum Potliner (SPL) which is a listed hazardous waste. This testing has verified that SPL can be vitrified into a safe, recyclable glass product. Some results from this testing are provided in Section 2.2.1. …
Date:
October 30, 1993
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Refining of fossil resin flotation concentrate from western coal. First quarterly final report, February 23, 1993--March 31, 1993
During the first quarter of the project, from February 22, 1993 to March 31, 1993, the major work is to conduct project work plan and to organize the research term in order to successfully conduct this fossil resin refining project. Under a previous DOE-funded program, University of Utah and APT conducted a serious pilot-plant tests of selective flotation of fossil resin from Wasatch plateau coal (both UPL coal and CO-OP coal mines) of south central Utah. About 200 lbs high grade fossil resin flotation concentrate (approximate 75% resin content) was generated from those pilot-plant flotation tests. The resin flotation concentrate were naturally dried, sampled and storied into one kilo plastic bag for future use. The ash and moisture content of the resin concentrate is found to be 1.23% and 1.03 by weight respectively. As concluded from our previous research project, it was found that macroscopic fossil resin is friable and can be easily liberated from other coal macerals. Consequently the fossil resin particles tend to concentrate into the fine sizes during size reduction and coal preparation. Because of this property, the fine resinous coal streams in a coal preparation plant contain more than 6% hexane-soluble fossil resin, even when the …
Date:
April 30, 1993
Creator:
Miller, J. D.
Object Type:
Report
System:
The UNT Digital Library
Oak Ridge National Laboratory Technology Logic Diagram. Executive Summary
This executive summary contains a description of the logic diagram format; some examples from the diagram (Vol. 2) and associated technology evaluation data sheets (Vol. 3); a complete (albeit condensed) listing of the RA, D&D, and WM problems at ORNL; and a complete listing of the technology rankings for all the areas covered by the diagram.
Date:
June 30, 1993
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Scientific computations section monthly report, November 1993
This progress report from the Savannah River Technology Center contains abstracts from papers from the computational modeling, applied statistics, applied physics, experimental thermal hydraulics, and packaging and transportation groups. Specific topics covered include: engineering modeling and process simulation, criticality methods and analysis, plutonium disposition.
Date:
December 30, 1993
Creator:
Buckner, M. R.
Object Type:
Report
System:
The UNT Digital Library
Mixing of immiscible fluids in chaotic flows and related issues. Progress report, June 1, 1992--May 31, 1993
The basis goal of this work was to obtain a basic understanding of mixing of immiscible fluids leading to the determination of flow conditions which result in efficient breakup and dispersion of one mass of fluid in the bulk of another. Related issues were the prediction of the morphological structures and drop size distribution for a given set of operating conditions. The primary motivation for these investigations was to produce basic knowledge leading to increased understanding of industrial processes involving blending, agitation, emulsification, and dissolution.
Date:
March 30, 1993
Creator:
Ottino, J. M.
Object Type:
Report
System:
The UNT Digital Library
Assist in the Recovery of Bypassed Oil From Reservoirs in the Gulf of Mexico. Final Quarterly Status Report, July 1, 1993--September 30, 1993
During this reporting period, data collection from the Minerals Management Service (MMS) was completed and continued from several operators. Data analysis continued on Reservoir 3 in Field 2. Evaluation included well log analysis, pressure and production data analysis, evaluation of PVT data and development of preliminary model grid schemes. Material balance and computer simulations studies of the B-65-G Sand reservoir, in South Marsh 73 Field, also continued. Work continues on refining the match for use in predictive runs. Four wells produced from the reservoir; three injected some quantity of gas and one well injected no gas. A fifth downdip well, served as a primary gas injector. The reservoir model was developed by integrating geologic and engineering data. The reservoir is a long, north-south trending, steeply dipping sandstone, which pinches out just before encountering a piercement salt dome. The reservoir produced 3,909.8 MSTB of oil, 3,760.2 MMCF (2,745 MMCF was re-injected) of gas and 545 MBbls of water over a period of 27 years. Originally, it was believed that the reservoir was subject to a fairly strong water drive. However, upon performing material balance studies it was found to have a very weak and limited water drive. This was later confirmed …
Date:
November 30, 1993
Creator:
Schenewerk, P. A.
Object Type:
Report
System:
The UNT Digital Library
Applications of advanced petroleum production technology and water alternating gas injection for enhanced oil recovery: Mattoon Oil Field, Illinois. Quarterly report
The objectives of this project are to continue reservoir characterization of the Cypress Sandstone and identify and map a series of Facies Defined Waterflood Units (FDWS); and to design and implement water-alternating-gas WAG injection utilizing carbon dioxide. The producibility problems are permeability variation and poor sweep efficiency. Part 1 of the project focuses on the development of a computer generated geological model that will be used to select sites for the demonstration in Part 2. Included in Part 1 of the project is the drilling of an infill well, coring 100{prime} of the Cypress Sand, and various injectivity testing to gather information used to update the model. Part 2 involves field implementation of WAG. Technology Transfer includes outreach activity such as seminars, workshops, and field trips. Accomplishments for this quarter are presented.
Date:
September 30, 1993
Creator:
Baroni, M. R.
Object Type:
Report
System:
The UNT Digital Library
Characterization of gas-aerosol interaction kinetics using morphology dependent stimulated Raman scattering. 1992 Annual summary
This study is aimed at characterizing the influence of aerosol surface structure on the kinetics of gas-aerosol interactions. Changes in gas phase chemical reaction rates as a function of exposure to a specific aerosol are measured with aerosols having different surface properties due to the composition and/or temperature of the material making up the aerosol. The kinetic data generated can be used directly in atmospheric modeling calculations. The surface structure of the aerosol is using morphology-dependent enhancement of simulated Raman scattering (MDSRS). Detailed dynamics of gas-aerosol interactions can be obtained by correlating the change in the reaction rate with change in surface structure and by monitoring the change in aerosol surface structure during, the course of the reaction. This dynamics information can be used to generate kinetic data for systems which are similar in nature to those studied, but are not amenable to laboratory investigation. We show here that increased MDSRS sensitivity is achieved by using an excitation laser source that has a narrow linewidth and we have been able to detect sulfate anion concentrations much lower than previously reported. We have shown that the linewidth of the MDSRS mode excited in a droplet is limited by the laser linewidth. …
Date:
January 30, 1993
Creator:
Aker, P. M.
Object Type:
Report
System:
The UNT Digital Library
Sorbent Utilization Studies Using a Mini-Pilot Spray Dryer. Final Report, 1 September 1992--31 August 1993
The main body of the report consists of four parts: 1. additives to change process chemistry for SO{sub 2} absorption by Ca(OH){sub 2} slurry; 2. recycle tests and hydration of fly ash with Ca(OH){sub 2} to increase reactivity; 3. limestone as an alternative sorbent and additive effects; 4. physical and chemical model developments for some of the additive effects and spray dryer mathematical model application. As the concentration of SO{sub 2} in the flue gases increases, the SO{sub 2} removal efficiency will go down. Additives such as delinquent salts (NaOH, NaCl, and NaHCO{sub 3}) have been shown to improve SO{sub 2} uptake, and these additive tests have indicated that SO{sub 2} uptake may be increased by as much as 60% over baseline conditions. Other additives such as H{sub 2}O{sub 2}, sugar, and some organic acids which can change the chemical reaction processes are suggested and tested, and some promising results have been obtained. Recycle has been shown to increase sorbent utilization by allowing partially reacted sorbent to react further with the SO{sub 2} in the flue gases. Two types of Ohio coal fly ashes have been extensively studied, and improvement of utilization in spray dryer flue gas desulfurization has been …
Date:
September 30, 1993
Creator:
Keener, T. C.; Khang, S. J.; Wang, J. & Sanders, J. F.
Object Type:
Report
System:
The UNT Digital Library
Polarization experiments with hadronic and electromagnetic probes. [Annual] report, July 1, 1992--June 30, 1994
The following research activities were carried out during the past year Calibration of focal plane polarimeter POMME up to 2.4 GeV at Saturne National Laboratory (LNS) in Saclay. Measurement of tensor analyzing power T{sub 20} and polarization transfer {kappa}{sub 0} at Saturne up to 2.1 GeV in elastic backward dp scattering {rvec d}p {yields} {rvec p}d. Measurement of tensor analyzing power T{sub 20} at synchrophasotron in Dubha up to 4.4 Gev in elastic backward dp scattering {rvec d}p {yields} pd. Resubmission of conditionally Approved G{sub EP} proposal 89-14 at CEBAF. Start construction of focal plane polarimeter (FPP) for CEBAF hall A hadron spectrometer. The planned work for the next year includes: Construction of FPP for CEBAF hall A hadron spectrometer; measurement of polarization transfer {kappa}{sub 0} and tensor analyzing power T{sub 20} in elastic backward dp scattering at Saturne; measurements of tensor analyzing power in {sup 1}H({sup 6}Li,d)X, {sup 1}H({sup 6}Li,{alpha})X, {sup 1}H({sup 6}Li,t)X and {sup 1}H({sup 6}Li,{sup 3}He)X reactions at Saturne; and study of polarization transfer in {sup 2}H({rvec e},e{prime}{rvec p})n reaction at Bates.
Date:
March 30, 1993
Creator:
Punjabi, V.
Object Type:
Report
System:
The UNT Digital Library
Production of mild gasification co-products project. Fourth quarterly technical progress report, [October 1, 1992--December 31, 1992]
Progress continues related to production of the coproduct samples for the four coals from three coal regions. Following our internal schedule for the processing of the four coals, specific mine selection, taking samples, processing of the feedstock to coproducts, packaging and potential shipment to designated laboratories has occurred and is on going as described in this report.
Date:
January 30, 1993
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Overview of the Defense Programs Research and Technology Development Program for fiscal year 1993. Appendix II research laboratories and facilities
This document contains summaries of the research facilities that support the Defense Programs Research and Technology Development Program for FY 1993. The nine program elements are aggregated into three program clusters as follows: (1) Advanced materials sciences and technologies; chemistry and materials, explosives, special nuclear materials (SNM), and tritium. (2) Design sciences and advanced computation; physics, conceptual design and assessment, and computation and modeling. (3) Advanced manufacturing technologies and capabilities; system engineering science and technology, and electronics, photonics, sensors, and mechanical components. Section I gives a brief summary of 23 major defense program (DP) research and technology facilities and shows how these major facilities are organized by program elements. Section II gives a more detailed breakdown of the over 200 research and technology facilities being used at the Laboratories to support the Defense Programs mission.
Date:
September 30, 1993
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Research and Development of Proton-Exchange Membrane (PEM) Fuel Cell System for Transportation Applications: Initial Conceptual Design Report
This report addresses Task 1.1, model development and application, and Task 1.2, vehicle mission definition. Overall intent is to produce a methanol-fueled 10-kW power source, and to evaluate electrochemical engine (ECE) use in transportation. Major achievements include development of an ECE power source model and its integration into a comprehensive power source/electric vehicle propulsion model, establishment of candidate FCV (fuel cell powered electric vehicle) mission requirements, initial FCV studies, and a candidate FCV recommendation for further study.
Date:
November 30, 1993
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library