Partner
UNT Libraries Government Documents Department
109
Oklahoma Historical Society
84
UNT Libraries Special Collections
73
Cooke County Library
6
Sterling Municipal Library
6
UNT Libraries
4
Allen Public Library
3
Carl Albert Congressional Research and Studies Center
3
Keystone Crossroads Historical Society
3
Livingston Municipal Library
3
58 More
Collection
Office of Scientific & Technical Information Technical Reports
101
Texas Digital Newspaper Program
83
Oklahoma Publishing Company Photography Collection
50
KXAS-NBC 5 News Collection
48
Oklahoma Digital Newspaper Program
40
Tocker Foundation Grant
39
Louise Young and Vivienne Armstrong Papers (The Dallas Way)
9
Chickasha Newspaper Collection
7
LGBT Collections
7
Center for Media Production Collection
7
86 More
Serial/Series Title
NBC News Clips
37
Folder 10: Lesbian/Gay Political Coalition (LGPC) Agendas, 2, 1986-1989, 1991
7
Gainesville Daily Register
6
Sapulpa Daily Herald
6
The Altus Times
6
The Baytown Sun
6
The Chickasha Daily Express
6
Pawhuska Journal-Capital
5
The Perry Daily Journal
5
Characterization and Supply of Coal-Based Fuels Quarterly Report
3
86 More
Degree Department
Country
Year
Day
[Surface studies of absorbents for the removal of SO{sub x} and NO{sub x}]. Quarterly report, September 1--November 30, 1988
Work this quarter was devoted to initiating the coordinated experimental and theoretical/computational modeling study of CuO dispersed on alumina for adsorption of sulfur oxide gases. Research was devoted to characterizing CuO itself, as well as sulfur model compounds for benchmark comparisons, and toward modeling of copper site locations for dispersion on alumina.
Date:
December 31, 1988
Creator:
Cooper, B. R. & Montano, P. A.
Object Type:
Report
System:
The UNT Digital Library
Energy flow in an arctic aquatic ecosystem
Natural isotope abundances to trace major pathways of energy flow to consumers in Imnavait Creek and the tundra ecosystem of the R4D watershed with comparative work in the coastal tundra. Our overall goals are to a determine if carbon is accumulating in upland and coastal tundra; determine the role of eroded peat carbon in the aquatic ecosystem; and to determine the distribution of carbon and nitrogen isotopes in the tundra-pond ecosystem to establish the feasibility of using natural differences as tracers. Past work on fishes, birds, and the prey species of insects and aquatic crustaceans has shown that peat carbon is very important in the energy supply supporting the food webs over the course of the year. Obligate freshwater fishes from the coastal lakes and Colville River have been shown to contain up to 60 percent peat carbon at the end of the winter season. In contrast, migratory shorebirds and passerines contained much smaller radiocarbon abundances in summer, indicating a major shift to recent in situ primary production in pond and stream ecosystems in summer months. For the past two years, we have narrowed our focus to the processes supplying carbon to the beaded stream system at MS-117 and have …
Date:
December 31, 1988
Creator:
Schell, D. M.
Object Type:
Report
System:
The UNT Digital Library
Long-range forces and the collisions of free-molecular and transition regime aerosols
An aerosol here is understood to be a two-component system comprised of gaseous and condensed phases with the characteristic that the condensed phase is not an equilibrium subsystem. In contrast to the usual definitions based upon geometrical or mechanical variables, this quasi-thermodynamic formulation is framed to emphasize the dynamical behavior of aerosols by allowing for coagulation and other aerosol evolutionary processes as natural consequences of the interactions and state variables appropriate to the system. As will become clear later, it also provides a point of departure for distinguishing aerosol particles from unstable gas-phase cluster systems. The question of accommodation in particle collisions must be addressed as a prelude to the discussion of the role of long-range forces. Microscopic reversibility is frequently assumed for molecular collisions with either molecules or solid surfaces. In the case of aerosol collisions, the implication of this assumption is that collisions are elastic, which is contrary to the evidence from coagulation experiments and the conventional operational assumption of sticking upon collision. Gay and Berne have performed computer simulations of the collision of two clusters consisting of a total of 135 molecules interacting via Lennard-Jones potentials. That work showed that complete accommodation, accompanied by overall heating of …
Date:
December 31, 1988
Creator:
Marlow, W. H.
Object Type:
Article
System:
The UNT Digital Library
Development and process evaluation of improved Fischer-Tropsch slurry catalysts. Quarterly technical progress report, 1 October--31 December 1988
The objective of this contract is to develop a consistent technical data base on the use of iron-based catalysts in Fischer-Tropsch (FT) synthesis reactions. This data base will be developed to allow the unambiguous comparison of the performance of these catalysts with each other and with state-of-the-art iron catalyst compositions. Particular attention will be devoted to generating reproducible kinetic and selectivity data and to developing reproducible improved catalyst compositions.
Date:
December 31, 1988
Creator:
Withers, H. P.; Bukur, D. B. & Rosynek, M. P.
Object Type:
Report
System:
The UNT Digital Library
Advanced alternate planar geometry solid oxide fuel cells. Third interim quarterly technical progress report, July 1, 1988--September 30, 1988
The following Ceramatec tasks are reported: electrolyte development and fabrication, edge seal development/fabrication, electrode, and interconnector. The following IGT tasks are reported: cell design analysis, and program liaison and test facility preparation.
Date:
December 31, 1988
Creator:
Prouse, D.; Elangovan, S.; Khandkar, A.; Donelson, R. & Marianowski, L.
Object Type:
Report
System:
The UNT Digital Library
Multivariable and distributed control of nonlinear chemical processes using adaptive methods. Final report, February 1, 1985--January 31, 1988
In this work we studied the application of adaptive learning and optimization to chemical process control. The work covered theory as well as practical applications of adaptive and nonlinear control, including multivariable periodic control The main findings were: 1. Linear adaptive control systems may display chaotic behavior. The chaos has small amplitude if the algorithm is properly implemented. 2. Stability theory for nonlinear adaptive control has been developed. 3. Experimental evaluation of predictive control was performed. 4. A theory for periodic control and adaptive periodic control of chemical processes was developed.
Date:
December 31, 1988
Creator:
Ydstie, B. E.
Object Type:
Report
System:
The UNT Digital Library
Inertial Confinement Fusion Program. Progress report, FY 1988
The results of two experiments carried out during this report period are briefly described. The first studied the effect of 151 on the Raman instability using half-micron laser light, and the results were compared with earlier NRL studies with one micron laser light. It was learned that Raman experiments and theory are in agreement if one uses 151 optics. The second experimental attempted to measure the growth rate of the Rayleigh-Taylor instability using half micron laser light.
Date:
December 31, 1988
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Acoustic microscopy with mixed-mode transducers
The new amplitude-phase acoustic microscope is versatile; it operates in a wide frequency range 1--200 MHz, with selection of longitudinal, shear, and mixed modes. This enables it to be used in many NDE applications for different kinds of materials. Besides the application examples presented in this paper (bulk defect imaging of lossy materials or at deep locations; leads of IC chip in epoxy package; amplitude images of surface crack on Si nitride ball bearing; thin Au film on quartz), this system can also be applied for residual stress and anisotropy mapping with high accuracy and good spatial resolution. 7 refs, 6 figs.
Date:
December 31, 1988
Creator:
Chou, C. H.; Parent, P. & Khuri-Yakub, B. T.
Object Type:
Article
System:
The UNT Digital Library
Advanced Water-Cooled Phosphoric Acid Fuel Cell Development. Quarterly technical progress report No. 5, July--September 1988
The initial conceptual design configuration was completed. Baseline on-site electrodes were tested at electric utility conditions in 2 x 2 inch cells. GSB-18P cathodes were fabricated. Design of small area development stack was initiated and long lead time items ordered. Molded cooler thermal cycling tests were initiated. Equipment to evaluate alternative manifold coating processes and materials were procured.
Date:
December 31, 1988
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Studies of Coupled Chemical and Catalytic Coal Conversion Methods. Fifth Quarterly Report, October--December 1988
Liquefaction of coal by depolymerization in an organic solvent has been studied for several years. The liquefied coal extract which results from such a process is far more suitable for conversion into liquid fuel by hydrogenolysis than is the untreated coal. Investigations on the chemical structure and the reactive sites of coal can help to select useful reactions for the production of liquids from coal. Sternberg et al. demonstrated that the reductive alkylation method transforms bituminous coal into an enormously soluble substance, irrespective of the mild reaction conditions. The effectiveness of newly introduced alkyl groups for the disruption of intermolecular hydrogen bonds and pi-pi interactions between the aromatic sheets in coal macromolecules has been recognized. It has been reported by Ignasiak et al. that a C-alkylabon reaction using sodium or potassium amide in liquid ammonia can be used to introduce alkyl groups at acidic carbon sites. A method has been developed recently in this laboratory for the solubilization of high rank coals. In the previous reports it was shown that n-butyl lithium and potassium t-butoxide in refluxing heptane produced coal anions which could be alkylated with different alkyl halides. Such alkylated coals were soluble up to 92% in solvents like …
Date:
December 31, 1988
Creator:
Stock, L. M.
Object Type:
Report
System:
The UNT Digital Library
Photovoltaic systems for export application. Informal report
One approach to improving the competitiveness of photovoltaic systems is the development of designs specifically for export applications. In other words, where is it appropriate in a system design to incorporate components manufactured and/or assembled in the receiving country in order to improve the photovoltaic exports from the US? What appears to be needed is a systematic method of evaluating the potential for export from the US of PV systems for various application in different countries. Development of such a method was the goal of this project.
Date:
January 31, 1988
Creator:
Duffy, J.; Campbell, H.; Sajo, A. & Sanz, E.
Object Type:
Report
System:
The UNT Digital Library
Characterization and supply of coal-based fuels. Quarterly technical report, May 1, 1988--July 31, 1988
Contract objectives are as follows: Develop fuel specifications to serve combustor requirements; select coals having appropriate compositional and quality characteristics as well as an economically attractive reserve base; provide quality assurance for both the parent coals and the fuel forms; and deliver premium coal-based furls to combustor developers as needed for their contract work.
Date:
December 31, 1988
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Fundamental research on surface science of coal in support of physical beneficiation of coal. Quarterly technical progress report No. 4, July 1--September 30, 1988
The experimental systems required for our research have been acquired. Contact angle measurements on unoxidized Upper Freeport coal and fresh Illinois No. 6 coal show small differences in the contact angles of water under decane. Adsorption measurements on Upper Freeport coal with cyclohexanol in decane reveal adsorption behavior similar to that of octanol. This indicates that the adsorption is taking place on the pore surface of the coal and that the pores are probably greater than 2 nm diameter.
Date:
December 31, 1988
Creator:
Good, R. J.
Object Type:
Report
System:
The UNT Digital Library
Testing of electrostatic agglomerator. Second quarterly report, May--July 1988
The ESA combustor has been redesigned for higher thermal inputs to alleviate problems due to poor CWM atomization, poor mixing, low Reynolds numbers, long ESA heatup times and high heat losses. A thermal analysis of the ESA has been made in order to estimate heatup times. Precipitator designs have been completed.
Date:
December 31, 1988
Creator:
Quimby, J.
Object Type:
Report
System:
The UNT Digital Library
Texas Attorney General Opinion: LO88-36
Letter opinion issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification; Whether a judge may require, as a condition of probation, that a probationer reimburse a crime stoppers organization for a reward it paid for information leading to the arrest or prosecution of the probationer.
Date:
March 31, 1988
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History
Texas Attorney General Opinion: JM-975
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification; Whether public funds may be invested in bank-oriented money market mutual funds pursuant to article 842a-2, V.T.C.S. (RQ-1345)
Date:
October 31, 1988
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History
Texas Attorney General Opinion: JM-879
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification; Authority of the county auditor to require travel documentation from county commissioners and related questions (RQ-1328)
Date:
March 31, 1988
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History
Texas Attorney General Opinion: JM-880
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Jim Mattox, regarding a legal question submitted for clarification; Authority of a commissioners court to set fees for the extension of criminal warrants by a sheriff or constable (RQ-1060)
Date:
March 31, 1988
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History
Lightweight transformer demonstration. Semiannual status report, 1 October 1987--31 March 1988
Information is presented on progress made during the reporting period: 10/1/87--3/31/88. The project goal is to support highly focused, innovative, fundamental/applied research approaches that will complement the Feasibility Assessment Program for Space Based, Multimegawatt, MHD Power Systems. (JDB)
Date:
December 31, 1988
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Evaluation of the geological relationships to gas hydrate formation and stability. Progress report, June 16--September 30, 1988
The summaries of regional basin analyses document that potentially economic accumulations of gas hydrates can be formed in both active and passive margin settings. The principal requirement for gas hydrate formation in either setting is abundant methane. Passive margin sediments with high sedimentation rates and sufficient sedimentary organic carbon can generate large quantities of biogenic methane for hydrate formation. Similarly, active margin locations near a terrigenous sediment source can also have high methane generation potential due to rapid burial of adequate amounts of sedimentary organic matter. Many active margins with evidence of gas hydrate presence correspond to areas subject to upwelling. Upwelling currents can enhance methane generation by increasing primary productivity and thus sedimentary organic carbon. Structural deformation of the marginal sediments at both active and passive sites can enhance gas hydrate formation by providing pathways for migration of both biogenic and thermogenic gas to the shallow gas hydrate stability zone. Additionally, conventional hydrocarbon traps may initially concentrate sufficient amounts of hydrocarbons for subsequent gas hydrate formation.
Date:
December 31, 1988
Creator:
Krason, J. & Finley, P.
Object Type:
Report
System:
The UNT Digital Library
[Underground gasification of steeply dipping coal beds]. [Quarterly report, February 10, 1988--May 9, 1988]
The Rawlins UCG Demonstration Project is progressing in Phase 1 with the majority of the emphasis on facility design, site characterization and the environmental work. The site characterization field work was completed in February with the interpretation, analysis, and final report to be completed towards the end of Phase 1. The facility design effort continues and is well beyond the 40% level. It is anticipated that all permits will be applied for in Phase 1 and most of them will be granted by the end of Phase 1. Significant changes in the scope of the project were requested during this period and are under review. A request was made to eliminate urea production, make ammonia the primary product, and add cogeneration. An extension of Phase 1 and rescheduling of project deliverables were requested to accommodate the needs for private financing. The obtaining of the private financing continues to be a major activity in the project. All of the financing must be in place before the continuation application for DOE funding to Phase 2 will be submitted.
Date:
December 31, 1988
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Operating characteristics of rotating beds. Technical progress report for the third quarter 1988
Vapor-liquid contacting in high gravitational fields offers prospects for significant reductions in the physical size, capital, and operating costs of packed towers. Pressure drops, power requirements, mass transfer coefficients and liquid residence time distributions are reported for a rotating bed separator. The beds studied were rigid, foamed aluminum, with specific surface areas ranging from 650 to 3000 m{sup 2}/m{sup 2}. Gravitational fields were varied from 50 to 300g.
Date:
December 31, 1988
Creator:
Keyvani, M. & Gardner, N. C.
Object Type:
Report
System:
The UNT Digital Library
[Characterization and supply of coal based fuels]. Quarterly technical report, February 1, 1988--April 30, 1988
Contract objectives are as follows: Develop fuel specifications to serve combustor requirements; Select coals having appropriate compositional and quality characteristics as well as an economically attractive reserve base; Provide quality assurance for both the parent coals and the fuel forms; and deliver premium coal-based fuels to combustor developers as needed for their contract work. Progress is described.
Date:
December 31, 1988
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Lightweight transformer demonstration. Semiannual status report, 1 April 1988--30 September 1988
Information is presented on progress made during the reporting period: 4/1/88--9/30/88. The project goal is to support highly focused, innovative, fundamental/applied research approaches that will complement the Feasibility Assessment Program for Space Based, Multimegawatt, MHD Power Systems.(JDB)
Date:
December 31, 1988
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library