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Oxidation/gasification of carbon residue on retorted oil shale. Final report (open access)

Oxidation/gasification of carbon residue on retorted oil shale. Final report

Studies of the oxidation and gasification of oil shale char were extended to an investigation of the effects of mineral catalysis. Six shales with differing mineral compositions were studied, including samples from the saline zone in the Western Colorado and from the Antrim shales of Michigan. Oxidation kinetics data, corrected for mass transfer effects, were compared for all six samples. A high assay shale from Utah and a sample from the saline zone were found to have the highest oxidation rates. By examining the data for shales which were water leached and thermally pretreated, it was concluded that both NaO and CaO act as oxidation catalysts. However, as a result of mineral decomposition experiments conducted with a sample from the C-a lease tract, it appears as though the ankeritic dolomite fraction will not decompose as long as there is a minimal CO/sub 2/ over pressure. Rather, low temperature silication reactions appear to take place once the temperature exceeds 925/sup 0/K. An extensive evaluation was also completed for the gasification of an Antrim shale from Michigan. Both the rates of CO/sub 2/ and steam gasification of the char were found to be markedly lower than that observed for a shale sample …
Date: January 16, 1984
Creator: Thomson, W. J.
Object Type: Report
System: The UNT Digital Library
Laser-assisted solar cell metallization processing. Quarterly report, September 13-December 12, 1983 (open access)

Laser-assisted solar cell metallization processing. Quarterly report, September 13-December 12, 1983

The Westinghouse Electric Corporation has undertaken to investigate, develop, and characterize laser-assisted processing techniques utilized to produce the fine line, thin metal grid structures that are required to fabricate high-efficiency solar cells. Two basic techniques for metal deposition will be investigated, as follows: (1) photochemical decomposition of liquid or gas phase organometallic compounds utilizing either a focused, CW ultraviolet laser (System 1) or a mask and ultraviolet flood illumination, such as that provided by a repetitively pulsed, defocused excimer laser (System 2), for pattern definition, and (2) thermal deposition of metals from organometallic solutions or vapors utilizing a focused, CW laser beam as a local heat source to draw the metallization pattern. The purpose of this contract is to investigate the various existing laser-assisted film deposition techniques in order to develop a new, cost-effective technology for solar cell metallization. The tasks that will be performed in the conduct of these investigations are detailed. In the first three months of this contract, a comprehensive literature search has been carried out on the various state-of-the-art laser-assisted techniques for metal deposition, including laser chemical vapor deposition and laser photolysis of organometallics, as well as laser-enhanced electroplating. A compact system for the experiments involving …
Date: January 16, 1984
Creator: Dutta, S.
Object Type: Report
System: The UNT Digital Library
Radioiostope studies utilizing a low level whole body counter and clinical application of activation analysis. Progress report (open access)

Radioiostope studies utilizing a low level whole body counter and clinical application of activation analysis. Progress report

The main emphasis of these studies is the development of methods (hardware and software) for the quantitation of body and specific organ burdens of radioactivity. Current work is directed toward the evaluation of radiation dose distributions in human beings from new radioactive tracers and new procedures used in nuclear medicine. Dosimetry and clinical studies will be carried out on patients using new radiopharmaceuticals where dosimetry data are lacking. Future efforts will be directed toward the development of systems that will facilitate the collection of dosimetry data using less specialized facilities. The availability of instrumentation and analytic techniques that provide clinical images as well as dosimetry data should enhance the rate of collection of data on human exposures in medicine and assist in the optimization of diagnostic strategies. In parallel with these efforts, we are developing a new computer assisted technique for diagnostic decision making. The basic aim is to utilize efficiently all the available data to maximize information gain while minimizing cost factors.
Date: January 16, 1980
Creator: Brill, A. B. & Price, R. R.
Object Type: Report
System: The UNT Digital Library
Separation and Characterization of Coal Derived Components. Quarterly Report, 1 October 1983-31 December 1983 (open access)

Separation and Characterization of Coal Derived Components. Quarterly Report, 1 October 1983-31 December 1983

No new field-ionization data was obtained this quarter. For preasphaltenes, elemental analysis data was obtained on Kentucky and Wyodak preasphaltene samples. In conjunction with the preasphaltene work, solubility and thin-layer chromatography experiments were performed. The results indicated that basic alumina would not be useful as a general stationary phase for the separation of preasphaltenes. Several experiments were carried out with Chromasorb T, and the results showed it would be an adequate substitute for Fluoropak. The hydrocarbons in a sample from Pittsburgh Energy Technology Center were separated by the number of double bonds. The optimum mobile phases for the separation of monohydroxyl aromatics and dihydroxyl aromatics by reversed-phase liquid chromatography were obtained. In addition, a means of predicting retention in normal-phase chromatography was considered, and a NO/sub 2/ high-performance chromatographic column showed promise for the separation of compound classes. 6 references, 4 figures, 7 tables.
Date: January 16, 1984
Creator: Hurtubise, R. H. & Silver, H. F.
Object Type: Report
System: The UNT Digital Library

[Photograph 2012.201.B0118.0178]

Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date: January 16, 1980
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0095.0258]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Patricia and Henry Browne, chat with Sandra Bobzien, center."
Date: January 16, 1984
Creator: Wilson, George R.
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0074.0930]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "In the heat of action, Pirate player Matt McLean is pressed by two Knight roundballers."
Date: January 16, 1980
Creator: Tullous, Don
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0138.0198]

Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date: January 16, 1984
Creator: Wilson, George R.
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0149.0687]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Sioux medicine man Leonard Crowdog presents his credentials to Oklahoma County Sheriff Gene Wells in Wells' office Wednesday prior to performing a religious ceremony in the jail."
Date: January 16, 1980
Creator: Klock, Roger
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0149.0685]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Native American Church spiritual leader, Leonard Crowdog, left, leaves sheriff's office with attorney John T. Hall and activist Frances Wise."
Date: January 16, 1980
Creator: Klock, Roger
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0174.0466]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Oklahoma Christian School students Jennifer Whitmer and Dustin Crenshaw display a car donated by Broadway Ford and a Bert Seabourn print donated by Southwestern Bell."
Date: January 16, 1987
Creator: Klock, Roger
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0171.0553]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "The balmy January weather continuing throughout the state attracts Mary Jane Easley outside for an Off-season frolic with sons Jeremy, 2, and Jason, 4, at Oklahoma City's Goodholm Park, at NW 28 and Robinson."
Date: January 16, 1980
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0135.0499]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Gladys Clapper on duty at the Woodward library."
Date: January 16, 1987
Creator: James, Louis B.
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0147.0313]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "The Rev. Johnny Cowns examines damage to insulation around heating and air-conditioning ducts."
Date: January 16, 1987
Creator: Southerland, Paul
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0260B.0537]

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Anne Holbrook , Becky Hampton, Bing's niece, '89er staff"
Date: January 16, 1981
Creator: Grier, Bob
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0334.0018]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Martin Luther King Day marchers rally on the south steps of the state Capitol."
Date: January 16, 1989
Creator: Beckel, Jim
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0308B.0348]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Jane Jayroe greets guests at the luncheon."
Date: January 16, 1985
Creator: Miller, Joe
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0328.0092]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Two young fans - Tracy Kersey, 10, left, and Mindy Banz, 6, - watch the game intently from a comfy spot in the bleachers."
Date: January 16, 1980
Creator: Tullous, Don
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0324.0005]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "At left is Patty Cox."
Date: January 16, 1981
Creator: Grier, Bob
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0260.0029]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Workmen have started laying the first new pavement east of the Broadway Extension on I-240"
Date: January 16, 1980
Creator: Klock, Roger
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0226.0695]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Vida Graham goes over lesson with Nhu Pham, left, and Souphaphone Horahout."
Date: January 16, 1984
Creator: Howell, Paul S.
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0352.0198]

Photograph used for a story in the Oklahoma Times newspaper. Caption: "Judy Knott, president of Lyric Theater Guild."
Date: January 16, 1980
Creator: Miller, Joe
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0226.0140]

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Merry-Go-Rounds"
Date: January 16, 1981
Creator: Miller, Joe
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B0248.0505]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Harding Middle School computer coordinator Wes Morefield helps seventh-grader Tyrea Taylor, 12, do a reading lesson on computer."
Date: January 16, 1985
Creator: Klock, Roger
Object Type: Photograph
System: The Gateway to Oklahoma History