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[Photograph 2012.201.B1100.0213]

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "1991 National High School Finals Rodeo"
Date: July 28, 1991
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B1100.0214]

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "1991 National High School Finals Rodeo"
Date: July 28, 1991
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B1100.0415]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Texan Jason Jeter leans back and takes a wild ride during Sunday's action at the National High Shool Finals rodeo in Shawnee."
Date: July 28, 1991
Creator: Beckel, Jim
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B1112.0002]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "William Ruben stein of the American Civil Liberties Union, right, meets reporters in Washington Tuesday July 27, 1993 to discuss a federal lawsuit challenging President Clinton's new policy on homosexuals serving in the military."
Date: July 28, 1993
Creator: unknown
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B1010.0472]

Photograph used for a story in the Daily Oklahoman newspaper.
Date: July 28, 1991
Creator: Holt Photography
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B1289.1.0352]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Purcell Police Capt. David Tompkins looks over the shoulder of officer Rick Denton, who is showing some of his award-winning shooting skills. Thw two are ranked nationally for their shoothing expertise."
Date: July 28, 1993
Creator: Gooch, Steve
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B1223.0022]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Bob Swaffar directs the University of Texas school of Architecture's computer lab."
Date: July 28, 1994
Creator: Wilson, George R.
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B1223.0021]

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Bob Swaffar"
Date: July 28, 1994
Creator: Wilson, George R.
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B1186.0125]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "The Youth and Family Services is working for a new home."
Date: July 28, 1990
Creator: Klock, Roger
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B1148.0551]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Father Louis Scagnelli stands Inside the Little Flower Catholic Church. He is leaving after six decades of service"
Date: July 28, 1993
Creator: Hoke, Doug
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B1289.1.0353]

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Capt. David Tompkins & Rick Denton. Purcell Police Dept. - Crack Pistol Team."
Date: July 28, 1993
Creator: Gooch, Steve
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B1223.0020]

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Bob Swaffar, Former OSU Basketball Player"
Date: July 28, 1994
Creator: Wilson, George R.
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B1223.0018]

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Bob Swaffar, former OSU Basketball Player"
Date: July 28, 1994
Creator: Wilson, George R.
Object Type: Photograph
System: The Gateway to Oklahoma History

[Photograph 2012.201.B1186.0374]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Jim Quinn shows off his home to Realtor Phyllis Smith."
Date: July 28, 1994
Creator: Beckel, Jim
Object Type: Photograph
System: The Gateway to Oklahoma History
Can solid-state laser technology serve usefully beyond fusion ignition facilities? (open access)

Can solid-state laser technology serve usefully beyond fusion ignition facilities?

We have explored the major technical and conceptual issues relating to the suitability of a diode-pumped solid state laser as a driver for an inertial fusion energy power plant. While solid state lasers have long served as the workhorse of inertial confinement fusion physics studies, the deployment of a driver possessing adequate efficiency, reliability, and repetition rate for inertial fusion energy requires the implementation of several technical innovations discussed in this article.
Date: July 28, 1995
Creator: Payne, S. A.; Powell, H. T. & Krupke, W. F.
Object Type: Article
System: The UNT Digital Library
Increasing heavy oil reserves in the Wilmington oil field through advanced reservoir characterization and thermal production technologies. Quarterly technical progress report, March 30, 1995--June 30, 1995 (open access)

Increasing heavy oil reserves in the Wilmington oil field through advanced reservoir characterization and thermal production technologies. Quarterly technical progress report, March 30, 1995--June 30, 1995

This is the first quarterly technical progress report for the project. Although the contract was awarded on March 30, 1995 and Pre-Award Approval was given on January 26, 1995, the partners of this project initiated work on October 1, 1994. As such, this progress report summarizes the work performed from project inception. The production and injection data, reservoir engineering data, and digitized and normalized log data were all completed sufficiently by the end of the quarter to start work on the basic reservoir engineering and geologic stochastic models. Basic reservoir engineering analysis began June 1 and will continue to March, 1996. Design work for the 5 observation/core holes, oil finger printing of the cored oil sands, and tracers surveys began in January, 1995. The wells will be drilled from July--August, 1995 and tracer injection work is projected to start in October, 1995. A preliminary deterministic 3-D geologic model was completed in June which is sufficient to start work on the stochastic 3-D geologic model. The four proposed horizontal wells (two injectors and two producers) have been designed, equipment has been ordered, and the wells will be drilled from mid-August through September. Four existing steam injection wells were converted to hot …
Date: July 28, 1995
Creator: Clarke, D.; Ershaghi, I.; Davies, D.; Phillips, C. & Mondragon, J.
Object Type: Report
System: The UNT Digital Library
Assistance to the states with risk based data management. Quarterly technical progress report, April 1--June 30, 1995 (open access)

Assistance to the states with risk based data management. Quarterly technical progress report, April 1--June 30, 1995

The Tasks of this project are to: (1) complete implementation of a Risk Based Data Management System (RBDMS) in the States of Alaska, Mississippi, Montana, Nebraska; and (2) conduct Area of Review (AOR) Workshops in the states of California, Oklahoma, Kansas, and Texas. The RBDMS was designed to be a comprehensive database with the ability to expand into multiple areas, including oil and gas production. The database includes comprehensive well information for both producing and injection wells. It includes automated features for performing functions redated to AOR analyses, environmental risk analyses, well evaluation, permit evaluation, compliance monitoring, operator bonding assessments, operational monitoring and tracking, and more. This quarterly report describes the status of the development of the RBDMS project in both stated tasks and proposes further steps in its implementation.
Date: July 28, 1995
Creator: Paque, M. J.
Object Type: Report
System: The UNT Digital Library
Laser damage of dichroic coatings in a high average power laser vacuum resonator (open access)

Laser damage of dichroic coatings in a high average power laser vacuum resonator

In our application, dichroics in a high average power, near-infrared, laser system have short operating lifetimes. These dichroics were used as the resonator fold mirrors and permitted the transmission of the pumping argon (Ar) ion laser light. Representative samples of two different dichroic optics were taken off-line and the transmission performance monitored in various scenarios. Irradiating these optics under resonator vacuum conditions, ({le}1 mT, 11.7 kW/cm{sup 2}, Ar laser running all wavelengths) resulted in a degradation of transmission with time. Irradiating these optics in a rarefied oxygen atmosphere (1 to 10 T of oxygen, 11.7 kW/cm{sup 2}, Ar laser running all wavelengths) the transmission remained steady over a period of days. The transmission loss observed in the optic tested in vacuum was somewhat reversible if the optic was subsequently irradiated in a rarefied oxygen atmosphere. This reversibility was only possible if the transmission degradation was not too severe. Further tests demonstrated that an atmosphere of 10 T of air also prevented the transmission degradation. In addition, tests were performed to demonstrate that the optic damage was not caused by the ultra-violet component in the Ar ion laser. Mechanisms that may account for this behavior are proposed.
Date: July 28, 1999
Creator: Arnold, P. A.; Berzins, L. V.; Chow, R. & Erbert, G. V.
Object Type: Article
System: The UNT Digital Library
Geological and petrophysical characterization of the Ferron Sandstone for 3-D simulation of a fluvial-deltaic reservoir. Technical progress report, April 1--June 30, 1995 (open access)

Geological and petrophysical characterization of the Ferron Sandstone for 3-D simulation of a fluvial-deltaic reservoir. Technical progress report, April 1--June 30, 1995

The objective of this project is to develop a comprehensive, interdisciplinary, and quantitative characterization of a fluvial-deltaic reservoir which will allow realistic inter-well and reservoir-scale modeling to be constructed for improved oil-field development in similar reservoirs world-wide. The geological and petrophysical properties of the Cretaceous Ferron Sandstone in east-central Utah will be quantitatively determined. Both new and existing data will be integrated into a three-dimensional representation of spatial variations in porosity, storativity, and tensorial rock permeability at a scale appropriate for inter-well to regional-scale reservoir simulation. Results could improve reservoir management through proper infill and extension drilling strategies, reduction of economic risks, increased recovery from existing oil fields, and more reliable reserve calculations. Technical progress this quarter is divided into regional stratigraphy, case studies, stochastic modeling and fluid-flow simulation, and technology transfer activities. The regional stratigraphy of the Ferron Sandstone outcrop belt from Last Chance Creek to Ferron Creek is being described and interpreted. Photomosaics and a database of existing surface and subsurface data are being used to determine the extent and depositional environment of each parasequence, and the nature of the contacts with adjacent rocks or flow units. For the second field season, detailed geological and petrophysical characterization of …
Date: July 28, 1995
Creator: Allison, M. L.
Object Type: Report
System: The UNT Digital Library
A review of experiments and results from the transient reactor test (TREAT) facility. (open access)

A review of experiments and results from the transient reactor test (TREAT) facility.

The TREAT Facility was designed and built in the late 1950s at Argonne National Laboratory to provide a transient reactor for safety experiments on samples of reactor fuels. It first operated in 1959. Throughout its history, experiments conducted in TREAT have been important in establishing the behavior of a wide variety of reactor fuel elements under conditions predicted to occur in reactor accidents ranging from mild off normal transients to hypothetical core disruptive accidents. For much of its history, TREAT was used primarily to test liquid-metal reactor fuel elements, initially for the Experimental Breeder Reactor-II (EBR-II), then for the Fast Flux Test Facility (FFTF), the Clinch River Breeder Reactor Plant (CRBRP), the British Prototype Fast Reactor (PFR), and finally, for the Integral Fast Reactor (IFR). Both oxide and metal elements were tested in dry capsules and in flowing sodium loops. The data obtained were instrumental in establishing the behavior of the fuel under off-normal and accident conditions, a necessary part of the safety analysis of the various reactors. In addition, TREAT was used to test light-water reactor (LWR) elements in a steam environment to obtain fission-product release data under meltdown conditions. Studies are now under way on applications of TREAT …
Date: July 28, 1998
Creator: Deitrich, L. W.
Object Type: Article
System: The UNT Digital Library
Generation of x-ray pulses with rapid rise times to pump inner-shell photo-ionized x-ray lasing in carbon at 45 {angstrom} (open access)

Generation of x-ray pulses with rapid rise times to pump inner-shell photo-ionized x-ray lasing in carbon at 45 {angstrom}

An investigation of the rapid rise time of x-ray emission from targets heated by an ultrashort-pulse high-intensity optical laser was conducted for use as a pump for inner-shell photo-ionized x-ray lasing. Results of x-ray rise times from instantaneously heated Au rod targets show little benefit for using optical pulse widths less than 30 fs. Gain calculations for inner-shell photo-ionized lasing show that large gains can be obtained for pulse widths between 30 and 100 fs. Calculated spectra, using the hydrodynamic/atomic kinetics code LASNEX, from a 1 J, 65 fs FWHM pulse optical laser incident on a structured Au target gave a gain of 1 1.5 cm{sup {minus}1} in C at 45 {angstrom}.
Date: July 28, 1995
Creator: Moon, S. J. & Eder, D. C.
Object Type: Article
System: The UNT Digital Library
Two-station phase velocity determination for structure in North Africa (open access)

Two-station phase velocity determination for structure in North Africa

The seismic structure of North Africa is poorly understood due to the relative paucity of stations and seismicity when compared to other continental regions of the world. A better understanding of the velocity structure in this area will allow improved models of travel times and regional phase amplitudes. Such models will improve location and identification capability in this region leading to more effective monitoring of the Comprehensive Nuclear-Test-Ban Treaty. Using regional-to-teleseismic Rayleigh and Love waves that traverse the area we can obtain information about the region's seismic structure by examining phase velocity as a function of period. We utilize earthquakes from the tectonically active regions bounding North Africa (Mediterranean, Red Sea, East African Rift, and Mid-Atlantic Ridge) recorded at broadband seismic stations distributed throughout the region. A two-station method is utilized to determine phase velocity information along the interstation segment of the ray path. The two-station method provides particular advantage in this region as it dramatically increases the number of events available to provide pure North African sampling. Bandpass filters are applied to the seismograms so that peaks and troughs may be correlated. The phase is unwrapped and a difference curve computed. The difference curve is then converted to a …
Date: July 28, 1999
Creator: Hazler, S; Pasyanos, M; Sheehan, A & Walter, W
Object Type: Article
System: The UNT Digital Library
Experimental capabilities of the transient reactor test (TREAT) facility. (open access)

Experimental capabilities of the transient reactor test (TREAT) facility.

The TREAT facility was designed and built in the 1950s to provide a transient reactor for conducting safety experiments on reactor fuels. Throughout its almost 40-year history, it has proven to be a safe, reliable, and versatile facility, compiling a distinguished record of successful experiments. Several major improvements to the facility have been made, including an expansion of the building and of equipment handling capability, and enlargement of the access hole above the core, rearrangement of the reactor's control rods to provide more-uniform flux profiles, installation of improved reactor computer-control systems, a feedback system that safely allows real-time changes in power transients depending upon events occurring in the experiment, and several upgrades in the fast neutron hodoscope for improved experiment-fuel-motion diagnostics. The original TREAT fuel is still in use, however, since it appears to have no degradation from its many years of service.
Date: July 28, 1998
Creator: Crawford, D. C.
Object Type: Article
System: The UNT Digital Library
3D finite-difference frequency-domain code for electromagnetic induction tomography (open access)

3D finite-difference frequency-domain code for electromagnetic induction tomography

The effect of shrapnel on target chamber components and experiments at large lasers such as the National Ignition Facility at LLNL and the Megajoule Laser at CESTA in France is an important issue in fielding targets and exposure samples. Modeling calculations are likely to be an important component of this effort. Some work in this area has been performed by French workers, who are collaborating with the LLNL on many issues relating to target chamber, experiment-component, and diagnostics survival. Experiments have been performed at the PhCbus laser in France to measure shrapnel produced by laser-driven targets; among these shots were experiments that accelerated spheres of a size characteristic of some of the more damaging shrapnel. These spheres were stopped in polyethylene witness plates. The penetration depth is characteristic of the velocity of the shrapnel. Experimental calibration of steel sphere penetration into polyethylene was performed at the CESTA facility. The penetration depth has been reported (ref. 1) and comparisons with modeling calculations have been made (ref. 2). There was interest in a comparison study of the modeling of these experiments to provide independent checks of the calculations. This work has been approved both by DOE headquarters and by the French Atomic …
Date: July 28, 1999
Creator: Berryman, J. G.; Champagne, N. J., II & Buettner, H. M.
Object Type: Article
System: The UNT Digital Library