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Oklahoma Historical Society
51
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50
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38
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13
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12
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176
Texas Digital Newspaper Program
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119
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Tocker Foundation Grant
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Defense Base Closure and Realignment Commission
42
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The Greensheet
32
College of Music Recordings
13
José L. Castillo Photograph Collection
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The effect of pulse duration on laser-induced damage by 1053-nm light in potassium dihydrogen phosphate crystals
Laser induced damage in potassium dihydrogen phosphate (KDP) has previously been shown to depend significantly on pulse duration for 351-nm Gaussian pulses. In this work we studied the properties of damage initiated by 1053-nm temporally Gaussian pulses with 10ns and 3ns FWHM durations. Our results indicate that the number of damage sites induced by 1053-nm light scales with pulse duration ({tau}) as ({tau}{sub 1}/{tau}{sub 2}){sup 0.17} in contrast to the previously reported results for 351-nm light as ({tau}{sub 1}/{tau}{sub 2}){sup 0.35}. This indicates that damage site formation is significantly less probable at longer wavelengths for a given fluence.
Date:
November 27, 2006
Creator:
Cross, D A; Braunstein, M R & Carr, C W
Object Type:
Article
System:
The UNT Digital Library
Energy Penalty Analysis of Possible Cooling Water Intake Structure Requirements on Existing Coal-Fired Power Plants.
Section 316(b) of the Clean Water Act requires that cooling water intake structures must reflect the best technology available for minimizing adverse environmental impact. Many existing power plants in the United States utilize once-through cooling systems to condense steam. Once-through systems withdraw large volumes (often hundreds of millions of gallons per day) of water from surface water bodies. As the water is withdrawn, fish and other aquatic organisms can be trapped against the screens or other parts of the intake structure (impingement) or if small enough, can pass through the intake structure and be transported through the cooling system to the condenser (entrainment). Both of these processes can injure or kill the organisms. EPA adopted 316(b) regulations for new facilities (Phase I) on December 18, 2001. Under the final rule, most new facilities could be expected to install recirculating cooling systems, primarily wet cooling towers. The EPA Administrator signed proposed 316(b) regulations for existing facilities (Phase II) on February 28, 2002. The lead option in this proposal would allow most existing facilities to achieve compliance without requiring them to convert once-through cooling systems to recirculating systems. However, one of the alternate options being proposed would require recirculating cooling in selected …
Date:
November 27, 2006
Creator:
Veil, J. A.; Littleton, D. J.; Gross, R. W.; Smith, D. N.; Parsons, E.L., Jr.; Shelton, W. W. et al.
Object Type:
Report
System:
The UNT Digital Library
Ensemble: 2006-11-27 – Center for Chamber Music Studies
Access:
Use of this item is restricted to the UNT Community
Chamber music concert presented at the UNT College of Music Winspear Hall
Date:
November 27, 2006
Creator:
University of North Texas. Center for Chamber Music Studies.
Object Type:
Sound
System:
The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Monday, November 27, 2006
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
November 27, 2006
Creator:
Bush, Kent
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
[Funeral Program for Charlene D. Hawkins, November 27, 2006]
Funeral program for Charlene D. Hawkins, born November 3, 1929 and died November 20, 2006. The funeral was held Monday, November 27, 2006 at Second Baptist Church, officiated by Rev. Dr. Robert L. Jemerson, Pastor. Funeral arrangements were made through Sutton-Sutton Mortuary and she was buried in Fort Sam Houston National Cemetery near San Antonio, Texas.
Date:
November 27, 2006
Creator:
unknown
Object Type:
Pamphlet
System:
The Portal to Texas History
Health Savings Accounts: Overview of Rules for 2007
None
Date:
November 27, 2006
Creator:
Lyke, Bob
Object Type:
Report
System:
The UNT Digital Library
Internet Gambling: An Abridged Overview of Federal Criminal Law
None
Date:
November 27, 2006
Creator:
Doyle, Charles
Object Type:
Report
System:
The UNT Digital Library
Internet Gambling: Overview of Federal Criminal Law
This report is a brief summary of the federal criminal status implicated by conducting illegal gambling using the internet. It also discusses some of the constitutional issues associated with prosecuting illegal internet gambling.
Date:
November 27, 2006
Creator:
Doyle, Charles
Object Type:
Report
System:
The UNT Digital Library
IPNS Progress Report 2001-2006.
In August 1981, the proton beam from the rapid cycling synchrotron (RCS) was first delivered to the Intense Pulsed Neutron Source (IPNS) neutron scattering target and now, in June 2006, it is with great joy that we celebrate the impending 25th anniversary of this event. This edition of the IPNS Progress Report will focus on the development and scientific accomplishments of the past 5 years, since our last Progress Report, but with some mention of the 25 years of IPNS experience. It is appropriate at this anniversary date to recall some of the more significant historic events that have led to the present IPNS and discuss some of the plans that will lead to even more successes. Below is a brief chronology that captures some of the developments of IPNS: 8/4/81 - First beam delivered to the neutron scattering target; 6/10/84 - IPNS produced its one billionth neutron pulse; 1/10/85 - Installed world's first solid methane moderator; 6/30/87 - 1000th experiment performed at IPNS; 9/19/87 - IPNS produced its two billionth neutron pulse; 11/20/91 - 2000th experiment performed at IPNS; 4/17/04 - IPNS produced its eight billionth neutron pulse; and 8/19/05 - 7000th experiment performed at IPNS. During the past …
Date:
November 27, 2006
Creator:
Marzec, B.
Object Type:
Report
System:
The UNT Digital Library
The National Ignition Facility (NIF) A Path to Fusion Energy
Fusion energy has long been considered a promising clean, nearly inexhaustible source of energy. Power production by fusion micro-explosions of inertial confinement fusion (ICF) targets has been a long term research goal since the invention of the first laser in 1960. The NIF is poised to take the next important step in the journey by beginning experiments researching ICF ignition. Ignition on NIF will be the culmination of over thirty years of ICF research on high-powered laser systems such as the Nova laser at LLNL and the OMEGA laser at the University of Rochester as well as smaller systems around the world. NIF is a 192 beam Nd-glass laser facility at LLNL that is more than 90% complete. The first cluster of 48 beams is operational in the laser bay, the second cluster is now being commissioned, and the beam path to the target chamber is being installed. The Project will be completed in 2009 and ignition experiments will start in 2010. When completed NIF will produce up to 1.8 MJ of 0.35 {micro}m light in highly shaped pulses required for ignition. It will have beam stability and control to higher precision than any other laser fusion facility. Experiments using …
Date:
November 27, 2006
Creator:
Moses, Edward
Object Type:
Article
System:
The UNT Digital Library
The Oklahoma Daily (Norman, Okla.), Vol. 91, No. 69, Ed. 1 Monday, November 27, 2006
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
November 27, 2006
Creator:
Savage, William W., III
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Possible Signals of Wino LSP at the Large Hadron Collider
We consider a class of anomaly-mediated supersymmetry breaking models where gauginos acquire masses mostly from anomaly mediation while masses of other superparticles are from Kaehler interactions, which are as large as gravitino mass {approx} {Omicron}(10-100) TeV. In this class of models, the neutral Wino becomes the lightest superparticle in a wide parameter region. The mass splitting between charged and neutral Winos are very small and experimental discovery of such Winos is highly non-trivial. We discuss how we should look for Wino-induced signals at Large Hadron Collider.
Date:
November 27, 2006
Creator:
Ibe, M.; Moroi, Takeo & Yanagida, T. T.
Object Type:
Report
System:
The UNT Digital Library
Reduction of Thermal Conductivity in Wafer-Bonded Silicon
Blocks of silicon up to 3-mm thick have been formed by directly bonding stacks of thin wafer chips. These stacks showed significant reductions in the thermal conductivity in the bonding direction. In each sample, the wafer chips were obtained by polishing a commercial wafer to as thin as 36 {micro}m, followed by dicing. Stacks whose starting wafers were patterned with shallow dots showed greater reductions in thermal conductivity. Diluted-HF treatment of wafer chips prior to bonding led to the largest reduction of the effective thermal conductivity, by approximately a factor of 50. Theoretical modeling based on restricted conduction through the contacting dots and some conduction across the planar nanometer air gaps yielded fair agreement for samples fabricated without the HF treatment.
Date:
November 27, 2006
Creator:
Liau, ZL; Danielson, LR; Fourspring, PM; Hu, L; Chen, G & Turner, GW
Object Type:
Article
System:
The UNT Digital Library
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 92, No. 14, Ed. 1 Monday, November 27, 2006
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
November 27, 2006
Creator:
Mattox, Jami
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Screening and Ranking Framework (SRF) for Geologic CO2 Storage Site Selection on the Basis of Hse Risk
A screening and ranking framework (SRF) has been developedto evaluate potential geologic carbon dioxide (CO2) storage sites on thebasis of health, safety, and environmental (HSE) risk arising from CO2leakage. The approach is based on the assumption that CO2 leakage risk isdependent on three basic characteristics of a geologic CO2 storage site:(1) the potential for primary containment by the target formation; (2)the potential for secondary containment if the primary formation leaks;and (3) the potential for attenuation and dispersion of leaking CO2 ifthe primary formation leaks and secondary containment fails. Theframework is implemented in a spreadsheet in which users enter numericalscores representing expert opinions or published information along withestimates of uncertainty. Applications to three sites in Californiademonstrate the approach. Refinements and extensions are possible throughthe use of more detailed data or model results in place of propertyproxies.
Date:
November 27, 2006
Creator:
Oldenburg, Curtis M.
Object Type:
Article
System:
The UNT Digital Library
Seismic imaging of reservoir flow properties: Resolving waterinflux and reservoir permeability
Methods for geophysical model assessment, in particuale thecomputation of model parameter resolution, indicate the value and thelimitations of time-lapse data in estimating reservoir flow properties. Atrajectory-based method for computing sensitivities provides an effectivemeans to compute model parameter resolutions. We examine the commonsituation in which water encroaches into a resrvoir from below, as due tothe upward movement of an oil-water contact. Using straight-forwardtechniques we find that, by inclusing reflections off the top and bottomof a reservoir tens of meters thick, we can infer reservoir permeabilitybased upon time-lapse data. We find that, for the caseof water influxfrom below, using multiple time-lapse 'snapshots' does not necessarilyimprove the resolution of reservoir permeability. An application totime-lapse data from the Norne field illustrates that we can resolve thepermeability near a producing well using reflections from threeinterfaces associated with the reservoir.
Date:
November 27, 2006
Creator:
Vasco, D.W. & Keers, Henk
Object Type:
Article
System:
The UNT Digital Library
USE of Mine Pool Water for Power Plant Cooling.
Water and energy production issues intersect in numerous ways. Water is produced along with oil and gas, water runs off of or accumulates in coal mines, and water is needed to operate steam electric power plants and hydropower generating facilities. However, water and energy are often not in the proper balance. For example, even if water is available in sufficient quantities, it may not have the physical and chemical characteristics suitable for energy or other uses. This report provides preliminary information about an opportunity to reuse an overabundant water source--ground water accumulated in underground coal mines--for cooling and process water in electric generating facilities. The report was funded by the U.S. Department of Energy's (DOE's) National Energy Technology Laboratory (NETL), which has implemented a water/energy research program (Feeley and Ramezan 2003). Among the topics studied under that program is the availability and use of ''non-traditional sources'' of water for use at power plants. This report supports NETL's water/energy research program.
Date:
November 27, 2006
Creator:
Veil, J. A.; Kupar, J. M . & Puder, M. G.
Object Type:
Report
System:
The UNT Digital Library
Veterans’ Medical Care: FY2007 Appropriations
None
Date:
November 27, 2006
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
XMM-Newton Observations of HESSJ1813-178 Reveal a Composite Supernova Remnant
Aims--We present X-ray and {sup 12}CO(J=1-0) observations of the very-high-energy (VHE) {gamma}-ray source HESS J1813-178 with the aim of understanding the origin of the {gamma}-ray emission. Methods--High-angular resolution X-ray studies of the VHE {gamma}-ray emission region are performed using 18.6 ks of XMM-Newton data, taken on HESS J1813-178 in October 2005. Using this dataset we are able to undertake spectral and morphological studies of the X-ray emission object with greater precision than previous studies. NANTEN {sup 12}CO(J=1-0) data are used to search for correlations of the {gamma}-ray emission with molecular clouds which could act as target material for {gamma}-ray production in a hadronic scenario. Results--The NANTEN {sup 12}CO(J=1-0) observations show a giant molecular cloud of mass 2.5 x 10{sup 5} M{sub {circle_dot}} at a distance of 4 kpc in the vicinity of HESS J1813-178. Even though there is no direct positional coincidence, this giant cloud might have influenced the evolution of the {gamma}-ray source and its surroundings. The X-ray data show a highly absorbed (n{sub H} {approx} 1 x 10{sup 23} cm{sup -2}) non-thermal X-ray emitting object coincident with the previously known ASCA source AXJ1813-178 showing a compact core and an extended tail towards the north-east, located in the center …
Date:
November 27, 2006
Creator:
Funk, S.; Hinton, J. A.; Moriguchi, Y.; Aharonian, F. A.; Fukui, Y.; Hofmann, W. et al.
Object Type:
Article
System:
The UNT Digital Library
15th Street News (Midwest City, Okla.), Vol. 36, No. 8, Ed. 1 Friday, October 27, 2006
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
October 27, 2006
Creator:
Ray, Johnna
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Age Dependency Ratios and Social Security Solvency
As highlighted by the Social Security Administration (SSA), the aging of the (United States) population, hastened by the impending retirement of the huge baby-boom generation, has caused policy-makers to question whether the U.S. Social Security system can meet the demands for retirement benefits in the future. Because the current system largely pays benefits through taxes paid by current workers, the financial health of the system is sensitive to the ratio of dependents to workers—sometimes called the age dependency ratio or support ratio. Trends and projections of dependency ratios, including the relationship between both older (years 65 and older) and younger (under age 20) dependents to the working-age population in the United States are considered in the first section of this demographic report. Next, the United States is compared to nine other nations, including the seven other members of the G8. In the final section, policy implications of the changing dependent-to-worker ratios are considered in the context of pay-as-you-go (paygo) social security systems.
Date:
October 27, 2006
Creator:
Shrestha, Laura B.
Object Type:
Report
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 108, No. 180, Ed. 1 Friday, October 27, 2006
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 27, 2006
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Baytown Sun (Baytown, Tex.), Vol. 85, No. 336, Ed. 1 Friday, October 27, 2006
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
October 27, 2006
Creator:
Clements, Clifford E.
Object Type:
Newspaper
System:
The Portal to Texas History
Boerne Star & Recorder (Boerne, Tex.), Vol. 100, No. 86, Ed. 1 Friday, October 27, 2006
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
October 27, 2006
Creator:
Cartwright, Brian
Object Type:
Newspaper
System:
The Portal to Texas History