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Oklahoma Historical Society
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126
Sterling Municipal Library
5
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4
Deaf Smith County Library
4
Red River County Public Library
4
Hopkins County Genealogical Society
3
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2
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Oklahoma Publishing Company Photography Collection
143
KXAS-NBC 5 News Collection
120
Technical Report Archive and Image Library
117
Texas Digital Newspaper Program
72
Office of Scientific & Technical Information Technical Reports
51
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50
Tocker Foundation Grant
40
The Oklahoma City Times
8
Altus Times-Democrat
6
Chickasha Newspaper Collection
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Investigation of mechanically hard, chemically inert antireflection coatings for photovoltaic solar modules. Final technical report, April 1, 1980-March 31, 1981
The overall objective of this program is to determine the optical properties of i-Carbon (diamond-like) films and determine if these films can be developed into antireflecting (AR) coatings for silicon solar cells. The i-C films have been produced on glass, silicon, and KCl by radio frequency (RF) plasma decomposition of the alkane gases. Films were also produced on silicon solar cells by low-energy ion beam techniques. These coatings did not perform as well as those made from hydrocarbon gases. Significant progress has been made in understanding the deposition parameters that affect the optical properties of the films. The optical constants n and k have been determined over a large range of process parameters and source gas. The degree of hydrogen incorporation in these films has been studied by SIMS analysis. It was found that the lower optically absorbing films contain more hydrogen. This hydrogen does not, however, manifest itself in fundamental C-H absorption bands in the infrared. Very efficient single-layer quarter-wave i-C AR coatings have been produced on single-crystal and SOC Si solar cells. An increase in cell efficiency of 40% over uncoated cells has been achieved.
Date:
March 31, 1981
Creator:
Moravec, T.J.
Object Type:
Report
System:
The UNT Digital Library
Study of selected off-gases produced during the immobilization of nuclear wastes in the SYNROC process. Final report for year ended December 31, 1981. [Pollucite, CsAlSi/sub 2/O/sub 6/, and barium-cesium hollandite, (Ba,Cs)Al/sub 2/Ti/sub 6/O/sub 16/]
Calculation of possible off-gases expected during the fabrication of SYNROC showed that volatilization of cesium would be a significant problem. Samples of the cesium containing minerals pollucite, CsAlSi/sub 2/O/sub 6/, and barium-cesium hollandite, (Ba,Cs)Al/sub 2/Ti/sub 6/O/sub 16/, were prepared for vaporization studies. Fifteen vaporization runs were made with the hollandite samples. With dry air as the carrier gas, the vapor pressure of cesium over Ba/sub 0/ /sub 8/Cs/sub 0/ /sub 4/Al/sub 2/Ti/sub 6/O/sub 16/ was found to be about 1 x 10/sup -7/ atm at 1050/sup 0/C.
Date:
December 31, 1981
Creator:
Carpenter, J.H.
Object Type:
Report
System:
The UNT Digital Library
Thermal stability of ferritic alloys for fossil-fuel processing systems. Final technical report, September 1, 1978-August 31, 1981. [at 475/sup 0/C]
This research program has investigated the thermal stability of several ferritic stainless steels containing 15 to 18 weight percent chromium over the temperature range 400/sup 0/C to 550/sup 0/C where the 475/sup 0/C embrittlement reaction is of concern. A major part of the experimental work was concerned with the effect of ternary additions of up to 6 weight percent; aluminum on the kinetics and the magnitude of the embrittlement reaction. The work also included a binary Fe-18Cr alloy, a ternary Fe-18Cr-2Mo, and two commercial alloys, Armco type 430 and type 18SR. Resistometric studies of the kinetics of microstructural instability indicated that aluminum additions promote the tendency of chromium atoms to cluster at temperatures in the vicinity of 475/sup 0/C. The magnitude of embrittling reaction is intensified by the aluminum additions which are expected to restrict dislocation cross slip and increase the coherency strains associated with the alpha prime precipitates. Activation energy determinations for the decomposition reaction indicate that the rate controlling process is most likely determined by the diffusion of chromium, and the tendency of aluminum to enhance the clustering of chromium atoms is similar to the effect reported for molybdenum additions by previous workers.
Date:
December 31, 1981
Creator:
Polonis, D.H. & Spear, W.S.
Object Type:
Report
System:
The UNT Digital Library
Brayton-cycle heat-recovery-system characterization program. Gas-conditioning final evaluation report
Flue gas conditioning approaches for the Brayton-cycle heat recovery system are discussed. This revision incorporates the results of recent AiResearch tests on the subatmospheric system (SAS) turbocompressor, as well as the Electric Power Research Institute sponsored tests on ceramic fiber filters. The two primary purposes of the gas conditioning evaluation are: to determine the need for protecting the Brayton-cycle turbocompressor and heat exchanger from the potential damaging effects of erosion and deposition, and to determine what type of approach should be used for cleanup, if protection by flue gas conditioning is required.
Date:
July 31, 1981
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Hydrogeochemical and stream sediment reconnaissance basic data for Carlsbad quadrangle, New Mexico
Field and laboratory data are presented for 467 water samples and 1680 sediment samples from the Carlsbad Quadrangle, New Mexico. The samples were collected and uranium analysis performed by Los Alamos National Laboratory; multielement analysis and data reporting were performed by the Uranium Resource Evaluation Project at Oak Ridge, Tennessee.
Date:
August 31, 1981
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Brayton-cycle heat recovery-system characterization program. Subatmospheric-system test report
The turbine tests and results for the Brayton cycle subatmospheric system (SAS) are summarized. A scaled model turbine was operated in the same environment as that which a full-scale SAS machine would experience from the hot effluent flue gas from a glass container furnace. The objective of the testing was to evaluate the effects of a simulated furnace flue gas stream on the turbine nozzles and blades. The following specific areas were evaluated: erosion of the turbine nozzles and blades from the dust in the flue gas, hot corrosion from alkali metal salts in the dust and acid vapor (sulfur trioxide and hydrogen chloride) in the flue gas, and fouling and flow blockage due to deposition and/or condensation from the flue gas constituents.
Date:
July 31, 1981
Creator:
Burgmeier, L. & Leung, S.
Object Type:
Report
System:
The UNT Digital Library
[Photograph 2012.201.B0143.0434]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "OU's Cooperative Institute of Mesoscale Meterological Studies, 815 Jenkins, is involved in plans for the construction of $20 million energy center and College of Geosciences."
Date:
July 31, 1981
Creator:
Southerland, Paul
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0135.0255]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Heavy machinery, scaffolding and manpower are being used to remove the 45th Infantry Division monument in downtown Oklahoma City."
Date:
December 31, 1981
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0142.0601]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Allen Cooksey of Spencer displays his daredevil slide off a galloping horse in the bulldogging competition Friday at Choctaw Round-Up Club Arena."
Date:
July 31, 1981
Creator:
McDaniel, David
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0135.0256]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Above, a workman prepares to dismantle the monument to Oklahoma's 45th Infantry Division to make way for construction of Leadership Square, an office complex on Couch Drive in downtown Oklahoma City."
Date:
December 31, 1981
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0143.0435]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "OU's Cooperative Institute of Mesoscale Meterological Studies, 815 Jenkins, is involved in plans for the construction of $20 million energy center and College of Geosciences."
Date:
July 31, 1981
Creator:
Southerland, Paul
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Geothermally heated Chamber of Commerce offices at Marlin, Texas. Final report
The use of an existing, low temperature, geothermal resource to heat the Chamber of Commerce offices in Marlin, Texas is described. A secondary purpose of the project is to attract new industries and businesses to Marlin via this alternate energy show-piece demonstration of a simple and practical application of Texas' low temperature geothermal resource.
Date:
July 31, 1981
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Jahn-Teller Effect: Its History and Applicability
The interactions between Teller, Renner, Jahn and Landau which led to the formulation of the Jahn-Teller effect are discussed. The applicability of Jahn-Teller type of theory to superconductivity and the explanation proposed by the use of Goldstone particles are assessed.
Date:
August 31, 1981
Creator:
Teller, E.
Object Type:
Article
System:
The UNT Digital Library
Wavelength scaling of implosion symmetry, ablation pressure, and hydrodynamic efficiency in laser fusion
We examine the scaling of implosion symmetry, ablation pressure, and hydrodynamic efficiency with the wavelength of the laser, using a recent theoretical analysis of ablative laser driven implosions as a tool. Symmetrization by a hot atmosphere is most effective for long wavelength lasers, whereas ablation pressure and hydrodynamic efficiency are best for shorter laser wavelengths.
Date:
July 31, 1981
Creator:
Max, C.E.; Lindl, J.D. & Mead, W.C.
Object Type:
Article
System:
The UNT Digital Library
Investigation of Sulfur-Tolerant Catalysts for Selective Synthesis of Hydrocarbon Liquids From Coal-Derived Gases. Annual Technical Progress Report, September 19, 1980-September 18, 1981
During the past contract year, considerable progress was made in characterization and activity/selectivity testing of iron and cobalt catalysts. Preparation of boride promoted cobalt and iron catalysts was refined and nearly completed. H/sub 2/ and CO adsorption and oxygen titration measurements were performed on a number of supported and unsupported catalysts, especially several boride promoted cobalt and iron catalysts. Activity/selectivity tests of 3 and 15% Fe/SiO/sub 2/ and Co/SiO/sub 2/ and of 6 borided cobalt and iron catalysts were completed. The product distributions for iron and cobalt boride catalysts are unusual and interesting. Boron promoted iron is more active and stable than iron/silica; cobalt boride has an unusually high selectivity for alcohols. Tests to determine effects of H/sub 2/S poisoning on activity/selectivity properties of 15% Co/SiO/sub 2/ indicate that a significant loss of activity occurs over a period of 24 to 28 h in the presence of 10 to 20 ppM H/sub 2/S. Product selectivity to liquids increased through a maximum during the gradual addition of sulfur. Reactant CO and H/sub 2/S interact partially to form COS which is less toxic than H/sub 2/S. H/sub 2/ and CO adsorption data were obtained for 3, 6 and 9% Co/ZSM-5 catalysts prepared …
Date:
October 31, 1981
Creator:
Bartholomew, C. H.
Object Type:
Report
System:
The UNT Digital Library
Ionization in liquids. Progress report, May 1, 1981-April 30, 1982
Significant progress has been made in better understanding the electron transport and reaction properties of model liquids and biological systems. The new results complement earlier studies of electrons and are important to all aspects of the interaction of radiation with matter and to the myriad of electronic processes that occur in a variety of systems. These processes range from dielectric breakdown to carcinogenesis as is illustrated in the following list of electron transport and reaction studies that were conducted in this contract period. The studies included: (1) effect of an external electric field on the electron attachment rate constant, k/sub e/, of SF/sub 6/ observed in the molecular liquids ethane and propane; (2) implications of field-dependent k/sub e/'s to dielectric breakdown in liquids; (3) influence of the electron-acceptor dipole moment on k/sub e/ in i-octane and the effect of solvent on electron-dipole interaction; (4) solvent effects on the electron-attachment process through measurements of the k/sub e/ of CCl/sub 4/ and ethyl bromide in i-octane/TMS mixtures; (5) electron attachment to reversed-micellar aggregates and comparison of the influence of the micellar water pool on the electron-capture process in the solvents i-octane and TMS; (6) correlation of diffusion-controlled k/sub e/'s with carcinogenicity and …
Date:
December 31, 1981
Creator:
Bakale, G.
Object Type:
Report
System:
The UNT Digital Library
[Photograph 2012.201.B0265.0691]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Workmen are pouring the foundation for a four story, earthquake-proof clinical addition to the Veterans Administration Medical Center at 921 NE 13."
Date:
March 31, 1981
Creator:
Miller, Joe
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0323.0166]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Junior Leaguers like Marty Kavanaugh and Betty Ann Furseth were out in force Wednesday, moving items to the state fairground's Made in Oklahoma Building in preparation for the 'Whale of a Sale' which begins a 12-hour run at 9 a.m. today."
Date:
March 31, 1981
Creator:
Miller, Joe
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0245.0958]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "A sea of painted faces and creatures greeted visitors to the costume parade and Halloween celebration Saturday at Edmond Library, 10 S Boulevard."
Date:
October 31, 1981
Creator:
Lynn, Renee
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0247.0517]
Photograph used for a newspaper owned by the Oklahoma Publishing Company.
Date:
January 31, 1981
Creator:
Southerland, Paul
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0249.0197]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Almost anything can be recycled, as Joanne Harrah demonstrates."
Date:
March 31, 1981
Creator:
Miller, Joe
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0265.0689]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Concrete beams are part of a $34 million expansion and renovation project at Veterans Administration Hospital."
Date:
July 31, 1981
Creator:
Lynn, Renee
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0259.0570]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "I-35 in northwest Oklahoma City is a maze of roads as workmen near completion of the Memorial Road interchange, right."
Date:
December 31, 1981
Creator:
Klock, Roger
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0262B.0224]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Bob Hornblower"
Date:
March 31, 1981
Creator:
McLaughlin, Al
Object Type:
Photograph
System:
The Gateway to Oklahoma History