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[News Clip: Teen suspect] captions transcript

[News Clip: Teen suspect]

B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: July 18, 1993, 5:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Object Type: Video
System: The UNT Digital Library
[News Clip: TX roundup] captions transcript

[News Clip: TX roundup]

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 6pm.
Date: April 18, 1994, 6:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Object Type: Video
System: The UNT Digital Library
[News Clip: Aylor] captions transcript

[News Clip: Aylor]

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: August 18, 1994, 5:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Object Type: Video
System: The UNT Digital Library
[News Clip: Texan of the week] captions transcript

[News Clip: Texan of the week]

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 10pm.
Date: March 18, 1994, 10:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Object Type: Video
System: The UNT Digital Library
[News Clip: Court shooting] captions transcript

[News Clip: Court shooting]

Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: October 18, 1994, 12:00 p.m.
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Object Type: Video
System: The UNT Digital Library
District Heating and Cooling Systems for Communities Through Power Plant Retrofit and Distribution Network, City of Piqua, Ohio: Volume 1 [Executive Summary] (open access)

District Heating and Cooling Systems for Communities Through Power Plant Retrofit and Distribution Network, City of Piqua, Ohio: Volume 1 [Executive Summary]

The goal of the Piqua, Ohio District Heating and Cooling Demonstration Project is to demonstrate the feasibility and efficiency of using cogenerated thermal energy from the City's Municipal Power Plant to provide residential, commercial and industrial space heating and cooling and satisfy other community energy needs as appropriate. Progress in four tasks within this project is reported. These tasks include: development of team work plan resource allocation; identification of thermal energy source market; analysis of energy market; and planning of power plant retrofits. (LCL)
Date: September 18, 1979
Creator: Piqua (Ohio)
Object Type: Report
System: The UNT Digital Library
Workshop on photon activation therapy: proceedings (open access)

Workshop on photon activation therapy: proceedings

This Workshop was held concurrently with an IAEA Research Coordination Meeting on Exploration of the Possibility of High-LET Radiation for Non-conventional Radiotherapy in Cancer. The Workshop on Photon Activation Therapy (PAT) was given as a special session on April 18, as it was thoght PAT might eventually be found to be attractive to developing countries, which is a major concern of the IAEA. An effort was made to bring together representatives of the various groups known to be actively working on PAT; these included investigators from Sweden and Japan as well as the US. It is hoped that this compendium of papers will be of use to those currently active in this developing field, as well as to those who might join this area of endeavor in the future.
Date: April 18, 1985
Creator: Fairchild, R.G. (ed.)
Object Type: Article
System: The UNT Digital Library
Testimony by J. William Currie, Ph. D Manager, Energy Systems Modernization Office, Battelle, Pacific Northwest Laboratories before The Senate Committee on Governmental Affairs Washington D. C (open access)

Testimony by J. William Currie, Ph. D Manager, Energy Systems Modernization Office, Battelle, Pacific Northwest Laboratories before The Senate Committee on Governmental Affairs Washington D. C

This report consists of the testimony by J. William Currie, Manager, Energy Systems Modernization Office, Battelle, Pacific Northwest Laboratories before The Senate Committee on Governmental Affairs, Washington, DC on February 18, 1992. He states It is a pleasure to have the opportunity to talk with this distinguished committee about energy conservation technologies and policies, especially as they relate to federal energy use and the commercialization of energy-efficiency technologies. Clearly, using energy more efficiently offers the potential for tremendous cost savings and environmental benefits in the United States and throughout the rest of the world. The challenge, especially with regard to the federal sector, is to lay the foundation for ensuring that the citizens of our nation realize the maximum savings and environmental benefit over the long run. This is the primary focus of my comments today.''
Date: February 18, 1992
Creator: Currie, J. W.
Object Type: Report
System: The UNT Digital Library
Silver isotopic anomalies in iron meteorites: cosmic-ray production and other possible sources (open access)

Silver isotopic anomalies in iron meteorites: cosmic-ray production and other possible sources

The sources of excess /sup 107/Ag observed in iron meteorites by Kaiser, Kelly, and Wasserburg (1980) are examined, with emphasis on the reactions of cosmic-ray particles with palladium. The cross sections for the production of the silver isotopes from palladium by energetic cosmic-ray particles are evaluated or estimated and used to calculate spallogenic production rates relative to that of /sup 53/Mn from iron. The upper limit for the production rate of excess /sup 107/Ag by galactic-cosmic-ray particles is 400 atoms/min/kg(Pd) which, over an exposure age of 10/sup 9/ years, would make only 1% of the observed excesses of /sup 107/Ag. Neutron-capture reactions with Pd isotopes produce mainly /sup 109/Ag. Binary fission of a siderophilic superheavy element would be expected to yield more /sup 109/Ag than /sup 107/Ag. An intense proton irradiation in the early solar system probably would produce a lower ratio of (/sup 107/Pd//sup 108/Pd) to (/sup 26/Al//sup 27/Al) than observed in meteorites. Therefore the presence of excess /sup 107/Ag in iron meteorites with large Pd/Ag ratios very likely is due to the incorporation of 6.5 x 10/sup 6/-year /sup 107/Pd of nucleosynthetic origin in these meteorites.
Date: April 18, 1980
Creator: Reedy, R. C.
Object Type: Article
System: The UNT Digital Library
Uranium production in thorium/denatured uranium fueled PWRs (open access)

Uranium production in thorium/denatured uranium fueled PWRs

Uranium-232 buildup in a thorium/denatured uranium fueled pressurized water reactor, PWR(Th), was studied using a modified version of the spectrum-dependent zero dimensional depletion code, LEOPARD. The generic Combustion Engineering System 80 reactor design was selected as the reactor model for the calculations. Reactors fueled with either enriched natural uranium and self-generated recycled uranium or uranium from a thorium breeder and self-generated recycled uranium were considered. For enriched natural uranium, concentrations of /sup 232/U varied from about 135 ppM (/sup 232/U/U weight basis) in the zeroth generation to about 260 ppM (/sup 232/U/U weight basis) at the end of the fifth generation. For the case in which thorium breeder fuel (with its relatively high /sup 232/U concentration) was used as reactor makeup fuel, concentrations of /sup 232/U varied from 441 ppM (/sup 232/U/U weight basis) at discharge from the first generation to about 512 ppM (/sup 232/U/U weight basis) at the end of the fifth generation. Concentrations in freshly fabricated fuel for this later case were 20 to 35% higher than the discharge concentration. These concentrations are low when compared to those of other thorium fueled reactor types (HTGR and MSBR) because of the relatively high /sup 238/U concentration added to …
Date: October 18, 1977
Creator: Arthur, W.B.
Object Type: Report
System: The UNT Digital Library
Fast optical shutters for Nova, a high power fusion laser (open access)

Fast optical shutters for Nova, a high power fusion laser

Preliminary design and performance test results for fast optical shutters intended for use in the Nova high power fusion laser system are briefly described. Both an opening shutter to protect the pellet target from amplified spontaneous emission (ASE), and a closing shutter to protect the laser from light reflected back from the target are discussed. Faraday rotators, synchronized by a 400 Hz oscillator, provide an opening shutter mechanism with an opening time of approximately 10 ..mu..s. A plasma closing shutter, employing electrical sublimation of a foil, provide a shutter closing time of 70 ns +- 20 ns. Energy for foil sublimation is provided by discharge of a 42 J capacitor bank. Implementation of these shutter techniques in the Nova system is anticipated to improve laser output power and efficiency. (RME)
Date: October 18, 1977
Creator: Bradley, L. P.; Gagnon, W. L. & Carder, B. M.
Object Type: Article
System: The UNT Digital Library
25 megajoule energy storage and delivery system for the Shiva laser (open access)

25 megajoule energy storage and delivery system for the Shiva laser

A 25 megajoule, 20 kV capacitive energy storage and delivery system has been built and tested for Shiva--a 20 arm, 10 kJ, 20 TW neodymium glass fusion research laser. This system supplies over 3.5 megamperes to xenon flashlamps for optical pumping of the laser amplifier. About 15% of the energy is used to establish magnetic fields within Faraday rotator glass. A digital based control and diagnostics scheme is employed through the entire pulse power system. This scheme utilizes a distributed digital data bus that addresses every element through two levels of optical isolation. The interfacing of low level digital circuitry to a pulse power environment is discussed, as well as the design and performance of the total system. Cost and manufacturing details are important in a project of this size. The projected cost goal of 27 cents/joule, installed and operating, has been met. The general approach to the design, transient analysis, manufacture, and activation of this large power conditioning system is also discussed.
Date: October 18, 1977
Creator: Gagnon, W.L.; Rupert, P. R.; Berkbigler, L.; Carder, B. M.; Gritton, D. G.; Holloway, R. W. et al.
Object Type: Article
System: The UNT Digital Library
Brillouin scatter in laser-produced plasmas (open access)

Brillouin scatter in laser-produced plasmas

The absorption of intense laser light is found to be reduced when targets are irradiated by 1.06 ..mu..m light with long pulse widths (150-400 psec) and large focal spots (100-250 ..mu..m). Estimates of Brillouin scatter which account for the finite heat capacity of the underdense plasma predict this reduction. Spectra of the back reflected light show red shifts indicative of Brillouin scattering.
Date: July 18, 1977
Creator: Phillion, D.W.; Kruer, W.L. & Rupert, V.C.
Object Type: Article
System: The UNT Digital Library
General purpose computers in real time (open access)

General purpose computers in real time

I see three main trends in the use of general purpose computers in real time. The first is more processing power. The second is the use of higher speed interconnects between computers (allowing more data to be delivered to the processors). The third is the use of larger programs running in the computers. Although there is still work that needs to be done, I believe that all indications are that the online need for general purpose computers should be available for the SCC and LHC machines. 2 figs.
Date: September 18, 1989
Creator: Biel, J.R.
Object Type: Article
System: The UNT Digital Library
Microscope and method of use (open access)

Microscope and method of use

A method and apparatus for electronically focusing and electronically scanning microscopic specimens are given. In the invention, visual images of even moving, living, opaque specimens can be acoustically obtained and viewed with virtually no time needed for processing (i.e., real time processing is used). And planar samples are not required. The specimens (if planar) need not be moved during scanning, although it will be desirable and possible to move or rotate nonplanar specimens (e.g., laser fusion targets) against the lens of the apparatus. No coupling fluid is needed, so specimens need not be wetted. A phase acoustic microscope is also made from the basic microscope components together with electronic mixers.
Date: August 18, 1981
Creator: Bongianni, W.L.
Object Type: Patent
System: The UNT Digital Library
Report of Working Group on Accelerator Problems (open access)

Report of Working Group on Accelerator Problems

There are many experimental elementary particle objectives which are uniquely achievable with polarized proton beams. These objectives require both higher beam energies and intensities than are presently available. The polarized ion source working group concluded that it looks quite practical to produce polarized H sources with output currents of several mA. The significance of this is best demonstrated by the fact that the ZGS operates at its space charge limit using a 6 mA H/sup -/ impolarized ion source and charge exchanger injection. Thus, polarized H/sup -/ ions offer the possibility of operating high energy synchrotrons at their ''normal'' intensity. With interesting physics to be done and the high probability of adequate intensities for both fixed target and colliding beam machines, the question to be answered is whether or not it is possible to accelerate polarized protons and/or deuterons to energies above the presently available 12 GeV/c of the ZGS and to store beams in a colliding beam machine such as the ISR or ISABELLE. This question was considered by the accelerator physics working group, and the conclusions reached are discussed.
Date: October 18, 1977
Creator: Cho, Y.; Montague, B. W.; Kubischta, W.; Turrin, A.; Courant, E. D. & Ratner, L.
Object Type: Article
System: The UNT Digital Library
District Heating and Cooling Systems for Communities Through Power Plant Retrofit and Distribution Network, City of Piqua, Ohio: Volume 2 [Full Report] (open access)

District Heating and Cooling Systems for Communities Through Power Plant Retrofit and Distribution Network, City of Piqua, Ohio: Volume 2 [Full Report]

The feasibility analysis and evaluation of the Piqua, Ohio District Heating and Cooling Demonstration program is being conducted by the Piqua Municipal Power Co., the Piqua Law Dept., the Public Works Dept., a firm of economic analysts, and the Georgia Tech Engineering Dept. This volume contains information on the organization and composition of the demonstration team; characterization of the Piqua community; and the technical, environmental, institutional; financial, and economic assessments of the project. (LCL)
Date: September 18, 1979
Creator: Piqua (Ohio)
Object Type: Report
System: The UNT Digital Library
Design and test of a 40-kV, 80-A, 10-msec, neutral-beam power supply series (open access)

Design and test of a 40-kV, 80-A, 10-msec, neutral-beam power supply series

To meet neutral-beam source requirements, a combination series switch/regulator system has been developed that can provide up to 40-kV at 80A output for 10-ms from the continuously decaying voltage of a charged capacitor bank. The system uses 100% feedback control of a series hard tube regulator. This feedback regulator is able to maintain a 40-kV output level for 100% load variations while the source voltage for the capacitor bank is drained from an initial 55-kV down to as low as 43-kV during a 10-ms pulse. In addition to controlling the output voltage, the series regulator tube also serves the dual role of a disconnect or interrupt switch at the end of each pulse and during the frequent occurrence of a neutral-beam source fault. In the interrupt mode, complete disconnect is achieved in less than 2-..mu..s after first observance of a fault condition; recovery times to normal operation of less than 10-..mu..s after fault clearance can be attained if desired.
Date: October 18, 1977
Creator: North, G.G.
Object Type: Article
System: The UNT Digital Library
Increasing the Life of Cutting Fluids Used in the LLNL Machine Shop (open access)

Increasing the Life of Cutting Fluids Used in the LLNL Machine Shop

The objective of this study was to extend the working life of cutting fluids used in metal machining operations at LLNL. The characteristics of the fluids in nine different machines were studied. The pH, bacteria level, percent coolant concentrate, percent tramp oil, and total undissolved solids were monitored on a week-to-week basis for 6 weeks. During this time, the criteria and procedures used for changing the cutting fluids in the machines were also observed. Although the study is incomplete, the following recommendations were made. Cutting fluids should be diluted with deionized water and the concentration of the cutting fluid should be monitored regularly with a refractometer. A bactericide should be added to the cutting fluid. The machines should have a thorough initial cleaning and machine oil leaks should be eliminated. Only one cutting fluid should be used throughout the shop. Methods for removing metal particles from used cutting oils should be investigated. (LCL)
Date: November 18, 1981
Creator: Cadena, C. A.; da Roza, R. A.; Johnson, J. S. & Szidon, R. D.
Object Type: Report
System: The UNT Digital Library
Performance evaluation of in-service, elevated temperature industrial insulation (open access)

Performance evaluation of in-service, elevated temperature industrial insulation

A purchaser of industrial insulation is concerned with many factors which bear on the type of insulation selected. One of the most important factors, undoubtedly, is the thermal conductivity. The thermal conductivity is a measure of the ability of an insulation to conduct heat. The lower this value the better the insulation appears to the buyer. In the past it was generally assumed that the conductivity during the life of the insulation could be taken as a fixed property so long as external influences such as moisture or physical damage do not occur. Due to the dramatic increase in the cost and availability of energy in recent years, investigation of the validity of this long-standing assumption is in order. The purpose of this study was to determine whether deterioration of industrial insulation does occur and, if so, attempt to identify the reasons. In order to accomplish this, it was necessary to first develop methods by which the conductivity could be determined in the field. Once this was accomplished, a field test program was implemented. It was determined from this program that there was a significant difference between the conductivity values obtained and those which were expected from manufacturer's data. However, …
Date: December 18, 1978
Creator: Martin, D. J.
Object Type: Report
System: The UNT Digital Library
Advanced gas cooled nuclear reactor materials evaluation and development program. Progress report, October 1, 1979-December 31, 1979 (open access)

Advanced gas cooled nuclear reactor materials evaluation and development program. Progress report, October 1, 1979-December 31, 1979

This report presents the results of work performed from October 1, 1979 through December 31, 1979. Work covered in this report includes the activities associated with the status of the simulated reactor helium supply system, testing equipment and gas chemistry analysis instrumentation and equipment. The progress in the screening test program is described. This includes: screening creep results, weight gain and post-exposure mechanical properties for materials thermally exposed at 750/sup 0/ and 850/sup 0/C (1382/sup 0/ and 1562/sup 0/F). In addition, the status of the data management system is described.
Date: April 18, 1980
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Substitute safety rods: Physics of operation and irradiation (open access)

Substitute safety rods: Physics of operation and irradiation

Under certain assumed accidents, an SRS reactor may lose most of its bulk moderator while maintaining flow to fuel assemblies. If this occurs immediately after operation at power, components normally dependent on convective heat transfer to the moderator will heat up with the possibility of melting that component. One component at risk is the currently used cadmium safety rod. A substitute safety rod consisting solely of sintered B{sub 4}C and stainless steel has been designed which is capable of withstanding much higher temperatures. This memorandum provides the physics basis for the adequacy of the rod for reactor shutdown and provides a set of criteria for acceptance in the NTG tests. This memorandum provides physics data for other aspects of operation. These include: Heat production and helium production, along with related phenomena, resulting from inadvertent irradiation at power. Gamma heat input under drained tank conditions. An equivalent rod design suitable for charge design and safety analyses. Degradation under normal operation. Thermal flux ripple in adjacent fuel due to axial striping of alternate B{sub 4}C and steel pellets. Possible effect on safety analyses. Safety rod withdrawal during reactor startup.
Date: November 18, 1991
Creator: Baumann, N.P.
Object Type: Report
System: The UNT Digital Library
Summary of S = 0 dibaryon resonances and candidates (open access)

Summary of S = 0 dibaryon resonances and candidates

Experimental data concerning S = O dibaryon resonances are reviewed, with an emphasis on the nucleon-nucelon system. Structures observed in the ..gamma..d channel, the ..pi..d elastic scattering, pp ..-->.. ..pi..d channel, and other channels are discussed. Experimental data are compared with various theories. The short-range forces can be represented by dibaryon resonances. Further measurements to clarify the understanding of dibaryons are also discussed. 53 refs., 24 figs.
Date: April 18, 1985
Creator: Yokosawa, A.
Object Type: Article
System: The UNT Digital Library
Full-scale demonstration Low-NO sub x Cell trademark Burner retrofit (open access)

Full-scale demonstration Low-NO sub x Cell trademark Burner retrofit

The overall objectives of the full-Scale Low-NOx Cell{trademark} Burner (LNCB{trademark}) Retrofit project is to demonstrate the cost-effective reduction of NOx generated by a large, base-loaded (70% capacity factor or greater), coal-fired utility boiler. Specific objectives include: (1) At least 50% NOx reduction over standard two-nozzle cell burners, without degradation of boiler performance or life; (2) acquire and evaluate emission and boiler performance data before and after the retrofit to determine NOx reduction and impact on overall boiler performance; (3) demonstrate that the LNCB{trademark} retrofits are the most cost-effective alternative to emerging, or commercially-available NOx control technology for units equipped with cell burners. The focus of this demonstration is to determine maximum NOx reduction capabilities without adversely impacting plant performance, operation and maintenance.
Date: March 18, 1992
Creator: unknown
Object Type: Report
System: The UNT Digital Library