Partner
Oklahoma Historical Society
9,091
UNT Libraries Special Collections
6,538
UNT Libraries Government Documents Department
4,810
Texas Historical Commission
3,590
UNT Libraries
539
Sterling Municipal Library
319
Dallas Museum of Art
268
Deaf Smith County Library
250
National WASP WWII Museum
226
Carl Albert Congressional Research and Studies Center
207
173 More
Collection
Oklahoma Publishing Company Photography Collection
6,333
KXAS-NBC 5 News Collection
5,275
Texas Digital Newspaper Program
4,401
Office of Scientific & Technical Information Technical Reports
3,700
THC National Register Collection
3,537
Oklahoma Digital Newspaper Program
2,221
Tocker Foundation Grant
1,958
Jim Argo Collection
856
Abilene Library Consortium
615
Texas State Publications
447
311 More
Degree Department
Degree Discipline
Degree Level
Country
States
Year
Month
Kinetics and mechanisms of key elementary processes of importance to high temperature combustion chemistry. Technical progress report, December 16, 1985--December 31, 1986
Status of the shock tube data system is reported. A corrected analysis of data on reactions of NF{sub 2} radical with olefins was carried out using the RRKM program. Kinetic experiments on reactions of phenyl radical (C{sub 6}H{sub 5}) with O{sub 2} and NO{sub 2} gave preliminary results. Data are being analyzed for shock tubes studies of the reaction of benzene with O atoms. Studies of CH{sub 3}O reactions are underway.
Date:
December 31, 1986
Creator:
Lin, M. C. & Sanders, W. A.
Object Type:
Report
System:
The UNT Digital Library
Kinetics modeling and interpretation of experimental results for XeF. Annual report, December 1985--November 1986
In this report the author presents a detailed discussion of a computer model of the electron beam pumped XeF laser which was developed for Los Alamos National Laboratory during FY86. In its present form, it should provide useful modeling and scaling of XeF laser experiments currently of interest. Additional modifications will be required for long pulse (t{sub P}>5{mu}sec) simulations. The model includes all of the important energy transport processes which contribute to the formation and quenching of XeF in the B-state (upper laser level), X-state (lower laser level), C-state (which mixes with the B-state as a loss mechanism), and the unbound (repulsive) A-state to which the C-state decays. The gain of the B to X transition is resolved for the three most important laser (vibrational) lines: (0-3) at 353 nm, (0-2) and (1-4) at 351 nm. This report describes the kinetics model and computer code for electron beam pumped XeF lasers which use gas mixtures composed of argon (the buffer), xenon, and fluorine. The temperatures, energy flow, and chemistry (plasma and neutral) are calculated in a self-consistent manner; balances of energy, matter, and charge are tracked by the code and output with each print cycle. The model includes the time …
Date:
December 31, 1986
Creator:
Salesky, E. T.
Object Type:
Report
System:
The UNT Digital Library
Kriging for interpolation of sparse and irregularly distributed geologic data
For many geologic problems, subsurface observations are available only from a small number of irregularly distributed locations, for example from a handful of drill holes in the region of interest. These observations will be interpolated one way or another, for example by hand-drawn stratigraphic cross-sections, by trend-fitting techniques, or by simple averaging which ignores spatial correlation. In this paper we consider an interpolation technique for such situations which provides, in addition to point estimates, the error estimates which are lacking from other ad hoc methods. The proposed estimator is like a kriging estimator in form, but because direct estimation of the spatial covariance function is not possible the parameters of the estimator are selected by cross-validation. Its use in estimating subsurface stratigraphy at a candidate site for geologic waste repository provides an example.
Date:
December 31, 1986
Creator:
Campbell, K.
Object Type:
Article
System:
The UNT Digital Library
Lake Travis View (Austin, Tex.), Vol. 1, No. 44, Ed. 1 Wednesday, December 31, 1986
Weekly newspaper from Austin, Texas that includes local, state, and national news along with advertising.
Date:
December 31, 1986
Creator:
Lee, Diane
Object Type:
Newspaper
System:
The Portal to Texas History
[Letter from Alan Ross to participants and contributors to the 1986 People with AIDS Holiday Gift Project, December 31, 1986]
Letter from Alan Ross thanking participants and contributors of the 1986 People with AIDS Holiday Gift Project with an income/expense report.
Date:
December 31, 1986
Creator:
Ross, Alan
Object Type:
Letter
System:
The UNT Digital Library
Liquid Metal Reactor Program: JASPER USDOE/PNC Shielding Research Program: Technical progress report, August 1-September 30, 1986
This report details activities on the JASPER Shielding Program for the time period of August 1, 1986 through September 30, 1986. This report contains the measurements in phases VI and VII, a graphite benchmark study and an alternate loop type shield design study for the Liquid Metal Reactor (LMR), respectively. This report also includes the results of analyses for phases I, II, III, V, and VI.
Date:
December 31, 1986
Creator:
Ingersoll, D. T.; Engle, W. W., Jr.; Muckenthaler, F. J. & Slater, C. O.
Object Type:
Report
System:
The UNT Digital Library
Low cost hydrogen/novel membrane technology for hydrogen separation from synthesis gas, Phase 1. Quarterly technical progress report for the period ending December 31, 1986
During the last quarter several high performance membranes for the separation of hydrogen from nitrogen, carbon monoxide, hydrogen sulfide and carbon dioxide. The heat-resistant resin poly(etherimide) has been selected as the polymer with the most outstanding properties for the separation of hydrogen from nitrogen and carbon monoxide. Flat sheet and hollow fiber poly(etherimide) membranes have been prepared and evaluated with pure gases and gas mixtures at elevated pressures and temperatures. Multilayer composite poly(ether-ester-amide) membranes were also developed. These membranes are useful for the separation of carbon dioxide and hydrogen sulfide hydrogen. They have very high selectivities and extremely high normalized carbon dioxide and hydrogen sulfide fluxes. Separation of carbon dioxide/hydrogen streams is a key problem in hydrogen production from coal. The development of the two membranes now gives us two approaches to separate these gas streams, depending on the stream`s composition. If the stream contains small quantities of hydrogen, the hydrogen- permeable poly(etherimide) membrane would be used to produce a hydrogen-enriched permeate. If the stream contains small quantities of carbon dioxide or hydrogen sulfide, the poly(ether-ester-amide) membrane would be used to produce a carbon dioxide/hydrogen sulfide-free, hydrogen-enriched residue stream. 6 fig., 4 tabs.
Date:
December 31, 1986
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Low cost hydrogen/novel membrane technology for hydrogen separation from synthesis gas, Phase 1. Quarterly technical progress report for the period ending March 31, 1986
The goal of this program is to develop polymer membranes useful in the preparation of hydrogen from coal-derived synthesis gas. During this quarter the first experiment were aimed at developing high performance composite membranes for the separation of hydrogen from nitrogen and carbon monoxide. Three polymers have been selected as materials for these membranes: polyetherimide cellulose acetate and ethylcellulose. This quarter the investigators worked on polyetherimide and cellulose acetate membranes. The overall structure of these membranes is shown schematically in Figure 1. As shown, a microporous support membrane is first coated with a high flux intermediate layer then with an ultrathin permselective layer and finally, if necessary, a thin protective high flux layer. 1 fig., 4 tabs.
Date:
December 31, 1986
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Low cost hydrogen/novel membrane technology for hydrogen separation from synthesis gas, Phase 1. Quarterly technical progress report for the period ending September 30, 1986
This report summarizes the development of polymer membranes useful in the separation of hydrogen from coal-derived synthesis gas during period 1 October 1985--30 September 1986. During the last year several high performance membranes were developed for the separation of hydrogen from nitrogen and carbon monoxide. The heat resistant resins poly(methyl pentene) (TPX), Mitsui Petrochemical Industries, New York, NY and poly(etherimide) (ULTEM, General Electric, Pittsfield, MA) have been selected as polymers with outstanding properties for membrane preparation. The properties of membranes prepared from these polymers are presented. TPX is an example of a moderately selective and highly permeable membrane; the poly(etherimide) membranes are more selective but have lower fluxes. These membranes will cover the range of properties required in our hydrogen separation program and the bulk of our future work will be on these membranes. A few experiments with palladium/silver membranes are also planned, as described in the Test Plan.
Date:
December 31, 1986
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Mannford Area News Journal (Mannford, Okla.), Vol. 68, No. 2, Ed. 1 Wednesday, December 31, 1986
Weekly newspaper from Mannford and Drumright, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 31, 1986
Creator:
Hopper, Ellie & Tucker, Nancy
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Mannford Eagle (Mannford, Okla.), Vol. 6, No. 43, Ed. 1 Wednesday, December 31, 1986
Weekly newspaper from Mannford, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 31, 1986
Creator:
Cranke, Jay
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Mercedes Enterprise (Mercedes, Tex.), Vol. 75, No. 53, Ed. 1 Wednesday, December 31, 1986
Weekly newspaper from Mercedes, Texas that includes local, state, and national news along with advertising.
Date:
December 31, 1986
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Methods for environmental monitoring of DOE waste disposal and storage sites. Semiannual progress report, April 1--September 30, 1986
Sulfate-reducing bacteria were grown in media containing (1) mercury and (2) a mixture of heavy metals to determine if these bacteria could effectively precipitate heavy metals from an aqueous solutions. Previous studies have shown that (1) sulfate-reducing bacteria produce hydrogen sulfide and (2) that hydrogen sulfide reacts with various heavy metals producing insoluble complexes. Data from these studies showed that when bacteria were incubated with heavy metals for 2 to 4 days a marked decrease in the solubility of mercury, lead and cadmium resulted. For example, after incubation with sulfate-reducing bacteria 90% of the mercury, zinc, lead and cadmium, and 60% of the copper and iron were filterable. The results suggest that sulfate-reducing bacteria may be used to remove heavy metal contaminants from aqueous solutions.
Date:
December 31, 1986
Creator:
Revis, N.; Osborne, T.; Hadden, C. & Benson, S.
Object Type:
Report
System:
The UNT Digital Library
Methods for environmental monitoring of DOE waste disposal and storage sites. Semiannual progress report, November 1, 1985--March 31, 1986
This progress report contains an account of recent research efforts carried out at the Oak Ridge Research Institute, to raise antibodies in New Zealand White Rabbits which are specific for various strains of Thiobacillus ferrooxidans bacteria. It is then intended to use the antibodies, in a subsequent phase of the project, to develop one or more ELISAs, which would be used to analyze, both in the laboratory and in the field, the numbers and extent of dispersion of these microorganisms at acid mine drainage sites. This is important because it is the metabolic consequences of unrestricted dissemination of these bacteria which are responsible in large measure for the environmentally damaging acid run-off. Efforts to control the proliferation of these microorganisms have been relatively unfocused up to the present, because of the lack of suitably discriminating methods of assaying the effects of treatment. In this report, the authors describe the work carried out in the first section of the project, which has been concerned with the raising of the antibodies to the Thiobacillus ferrooxidans cultures. They given an account of how the various cultures were grown, how they were treated before being injected into rabbits, the injection protocol, how the animals …
Date:
December 31, 1986
Creator:
Blake, R. & Revis, N.
Object Type:
Report
System:
The UNT Digital Library
Micelle-derived catalysts for extended Schulz-Flory. [Quarterly report], April 1, 1986--June 30, 1986
The objective of this program is to develop a synthesis gas conversion catalyst with improved selectivity to gasoline or diesel range fuel via application of a micelle technique for preparing novel supported catalysts with specific size ruthenium particles. The major emphasis is to investigate hydrocarbon cutoff principle and to apply it for developing selective catalysts. We previously reported that cutoff is not effected with 40--60 {Angstrom} and 20--40 {Angstrom} ruthenium particles on {gamma}-Al{sub 2}O{sub 3}. We recently tested a catalyst with <20 {Angstrom} ruthenium particles. Well dispersed ruthenium in that catalyst extensively agglomerated to larger particles even during the course of a short test despite the high H{sub 2}:CO ratio used. Therefore, we could not conclude whether cutoff is effected with <20 {Angstrom} ruthenium particles. We are going to continue to evaluate the effect of operational conditions and also evaluate the effect of modifiers on ruthenium agglomeration. A catalyst with <20 {Angstrom} ruthenium particles will be evaluated to investigate occurrence of cutoff, after no agglomeration conditions are identified. We are now proposing to conduct, parallel to the main approach, a second research approach which will aim at developing a ruthenium catalyst with substantially lower light ends selectivity while maintaining at …
Date:
December 31, 1986
Creator:
Abrevaya, H.
Object Type:
Report
System:
The UNT Digital Library
Micelle-derived catalysts for extended Schulz-Flory. [Quarterly report], January 1, 1986--March 31, 1986
The objective of this program is to develop a synthesis gas conversion catalyst selective to gasoline or diesel range fuel via application of a micelle technique for preparing specific site supported ruthenium particles. The current emphasis is to investigate hydrocarbon cutoff principle and to apply it for developing selective catalysts. During this quarter, micelle technique was further improved and 1 ruthenium particle:l reverse micelle limit was approached by careful control of catalyst synthesis conditions. Accordingly, it became possible to synthesize supported particles that closely meet the size and composition targets originally set. This improved technique was applied to synthesis of chemically modified ruthenium catalysts. Some of the chemically modified ruthenium catalysts will be evaluated later in the program. We previously reported that 40--60 {Angstrom} ruthenium particles prepared on {gamma}-alumina do not result in hydrocarbon cutoff. We could not determine then whether smaller ruthenium particles result in hydrocarbon cutoff because these particles agglomerated via ruthenium carbonyl formation during the course of a 6--10 day test. We have recently evaluated a catalyst with 20--40 {Angstrom} ruthenium particles prepared on {gamma}-alumina by carefully analyzing products initially made during the test prior to substantial ruthenium agglomeration. We concluded that cutoff is not effected by …
Date:
December 31, 1986
Creator:
Abrevaya, H.
Object Type:
Report
System:
The UNT Digital Library
Micelle-derived catalysts for extended Schulz-Flory. Technical progress report, July 1, 1986--September 30, 1986
The objective of this program is to develop a synthesis gas conversion catalyst with higher selectivity to liquid fuels, while maintaining catalytic activity and stability at least equivalent relative to state-of-the-art precipitated iron catalysts. During this quarter, the emphasis in the program has been the investigation of the hydrocarbon cutoff hypothesis with supported ruthenium catalysts. An alumina-supported catalyst with smaller than 20{Angstrom} ruthenium particles was tested under conditions of maximal water gas shift activity. During this test more than 90% of the water made in the Fischer-Tropsch synthesis reaction was converted to H{sub 2}. However, the extent of ruthenium metal agglomeration was not reduced. Accordingly, it was not possible to conclude whether hydrocarbon cutoff occurs with smaller than 20{Angstrom} ruthenium particles on {gamma}-alumina. A ruthenium catalyst prepared on Y-type zeolite had 20{Angstrom} or smaller ruthenium particles according to STEM examination and a 15{Angstrom} average ruthenium metal particle size according to EXAFS examination. The ruthenium metal particle size was stable during the test with this catalyst. The hydrocarbon product distribution was Anderson-Schulz-Flory with no cutoff up to a carbon number of 160. A well-dispersed titania-supported ruthenium catalyst is going to be evaluated during the next quarter in order to determine whether …
Date:
December 31, 1986
Creator:
Abrevaya, H.
Object Type:
Report
System:
The UNT Digital Library
Micelle-derived catalysts for extended Schulz-Flory. Technical progress report, October 1, 1986--December 31, 1986
The objective of this program is to develop a synthesis gas conversion catalyst with higher selectivity to liquid fuels, while maintaining catalytic activity and stability at least equivalent relative to state-of-the-art precipitated iron catalysts. Hydrocarbon cutoff hypothesis and developmental needs for a ruthenium catalyst with low light ends selectivity were investigated during this quarter. Hydrocarbon product distribution was Anderson-Schulz-Flory up to a carbon number of 250 and cutoff did not occur with a titania-supported catalyst containing ruthenium particles smaller than 20{Angstrom}. It was found that an alumina-supported catalyst with 1% (by weight) ruthenium in the form of 50{Angstrom} to 100{Angstrom} metal particles was initially about half as active (by catalyst volume) and made one quarter of the amount of C{sub 1}{minus}C{sub 4} light end products relative to the Sasol precipitated iron catalyst.
Date:
December 31, 1986
Creator:
Abrevaya, H.
Object Type:
Report
System:
The UNT Digital Library
Occurrence of fracture-lining manganese minerals in silicic tuffs, Yucca Mountain, Nevada, USA
Yucca Mountain, in southern Nevada, is being studied by the Nevada Nuclear Waste Storage Investigations (NNWSI) Project as a potential site for an underground high-level nuclear waste repository. The site is within Miocene volcanic rocks that are 1.5 to 4 km thick and range in age from 12.5 to 14 MY. Several holes have been drilled in Yucca Mountain for geologic and hydrologic studies. Drill hole USW G-4, the most recently cored hole within the potential repository block, was chosen for detailed study of fracture-filling minerals because it is closest to the planned NNWSI exploratory shaft. Drill hole USW G-4 was drilled to 914.7 m (3001 ft) and continuously cored from 6.7 m (22 ft) to total depth (TD). The drilling history, lithology of the core, and geophysical logs of the well were published earlier. Because manganese oxides in fractures may act as a natural barrier to radionuclide migration, it is important to determine exactly which manganese minerals are present, in what intervals they occur, and how extensive these fracture coatings are.
Date:
December 31, 1986
Creator:
Carlos, Barbara Arney
Object Type:
Article
System:
The UNT Digital Library
Performance evaluation of a ceramic cross-flow filter on a bench- scale coal gasifier. Sixth quarterly report, January 1, 1986--March 31, 1986
The Department of Energy is currently supporting a program that will aid in the development of cross flow filtration technology as applied to combined cycle power generation with coal gasification. The stated overall goal is to gain information on both the operational and economic feasibility of the implementation of cross flow filtration in various gasifier options. Westinghouse has prepared a comprehensive program that will lead directly to these program goals in an efficient manner.
Date:
December 31, 1986
Creator:
Ciliberti, D. F. & Lippert, T. E.
Object Type:
Report
System:
The UNT Digital Library
Perry Daily Journal (Perry, Okla.), Vol. 93, No. 276, Ed. 1 Wednesday, December 31, 1986
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 31, 1986
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0122.0161]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "June and Jim Campbell dance to the music of the Sentimental Journey Band."
Date:
December 31, 1986
Creator:
Wilson, George R.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0122.0256]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Claire Anderson, Teena Ball and Susan Campbell, from left, share a table at the party."
Date:
December 31, 1986
Creator:
Wilson, George R.
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0153.0666]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Paul Ives and Gaye Davey sample food at the buffet."
Date:
December 31, 1986
Creator:
Wilson, George R.
Object Type:
Photograph
System:
The Gateway to Oklahoma History