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449 Matching Results
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SIAM Workshop on Combinatorial Scientific Computing February 27-28, 2004 San Francisco, CA
None
Date:
October 4, 2004
Creator:
/a, n
Object Type:
Report
System:
The UNT Digital Library
Investigation of the Statistical Properties of Stable Eu Nuclei using Neutron-Capture Reactions
Neutron capture for incident neutron energies <1eV up to 100 keV has been measured for {sup 151,153}Eu targets. The highly efficient DANCE (Detector for Advanced Neutron Capture Experiments) array coupled with the intense neutron beam at Los Alamos Neutron Science Center is used for the experiment. Stable Eu isotopes mass separated and electroplated on Be backings were used. Properties of well-resolved, strong resonances in two Eu nuclei are examined. The parameters for most of these resonances are known. Detailed multiplicity information for each resonance is obtained employing the high granularity of the DANCE array. The radiative decay cascades corresponding to each resonance are obtained in the experiment. The measurements are compared to simulation of these cascades which calculated with various models for the radiative strength function. Comparison between the experimental data and simulation provides an opportunity to investigate the average quantities.
Date:
October 4, 2005
Creator:
Agvaanluvsan, U.; Alpizar-Vicente, A.; Becker, J. A.; Becvar, F.; Bredeweg, T. A.; Clement, R. et al.
Object Type:
Article
System:
The UNT Digital Library
The Radiative Strength Function Using the Neutron-Capture Reaction on 151,153Eu
Radiative strength functions in {sup 152,154}Eu nuclei for {gamma}-ray energies below 6 MeV have been investigated. Neutron capture for incident neutron energies <1eV up to 100 keV has been measured for {sup 151,153}Eu targets. Properties of resonances in these two nuclei are examined. The measurements are compared to simulation of cascades performed with various models for the radiative strength function. Comparison between experimental data and simulation suggests an existence of the low-energy resonance in these two nuclei.
Date:
October 4, 2005
Creator:
Agvaanluvsan, U.; Alpizar-Vicente, A.; Becker, J. A.; Becvar, F.; Bredeweg, T. A.; Clement, R. et al.
Object Type:
Article
System:
The UNT Digital Library
LCLS LLRF Upgrades to the SLAC Linac
The Linac Coherent Light Source (LCLS) at SLAC will be the brightest X-ray laser in the world when it comes on line. In order to achieve the brightness a 200fS length electron bunch is passed through an undulator. To create the 200fS, 3kA bunch, a 10pS electron bunch, created from a photo cathode in an RF gun, is run off crest on the RF to set up a position to energy correlation. The bunch is then compressed by chicanes. The stability of the RF system is critical in setting up the position to energy correlation. Specifications derived from simulations require the RF system to be stable to below 200fS in several critical injector stations and the last kilometer of linac. The SLAC linac RF system is being upgraded to meet these requirements.
Date:
October 4, 2007
Creator:
Akre, R.; Dowell, D.; Emma, P.; Frisch, J.; Hong, B.; Kotturi, K. et al.
Object Type:
Article
System:
The UNT Digital Library
Timpson & Tenaha News (Timpson, Tex.), Vol. 22, No. 40, Ed. 1 Thursday, October 4, 2007
Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date:
October 4, 2007
Creator:
Alexander, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History
Altus Times (Altus, Okla.), Vol. 106, No. 159, Ed. 1 Monday, October 4, 2004
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 4, 2004
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Observation of a New D_s Meson Decaying to D K at a Mass of 2.86 GeV/c^2
The authors observe a new D{sub s} meson with mass (2856.6 {+-} 1.5{sub stat.} {+-} 5.0{sub syst.}) MeV/c{sup 2} and width (48 {+-} 7{sub stat.} {+-} 10{sub syst.}) MeV/c{sup 2} decaying into D{sup 0}K{sup +} and D{sup +}K{sub S}{sup 0}. In the same mass distributions they also observe a broad structure with mass (2688 {+-} 4{sub stat.} {+-} 3{sub syst.}) MeV/c{sup 2} and width (112 {+-} 7{sub stat.} {+-} 36{sub syst.}) MeV/c{sup 2}. To obtain this result they use 240 fb{sup -1} of data recorded by the BABAR detector at the PEP-II asymmetric e{sup +}e{sup -} storage rings at the Stanford Linear Accelerator Center running at center-of-mass energies near 10.6 GeV.
Date:
October 4, 2006
Creator:
Aubert, B.
Object Type:
Article
System:
The UNT Digital Library
Dalitz-Plot Analysis of the Decays B+/- -> K+/- pi-/+ pi+/-
We report a Dalitz-plot analysis of the charmless hadronic decays of charged B mesons to the state K{sup {+-}} {pi}{sup {-+}}{pi}{sup {+-}}. Using a sample of 226.0 {+-} 2.5 million B{bar B}pairs collected by the BABAR detector, measure the magnitudes and phases of the intermediate resonant and nonresonant amplitudes both charge conjugate decays. We present measurements of the corresponding branching and their charge asymmetries that supersede those of previous BABAR analyses. We find the asymmetries to be consistent with zero.
Date:
October 4, 2005
Creator:
Aubert, B.; Barate, R.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J. P. et al.
Object Type:
Article
System:
The UNT Digital Library
15th Street News (Midwest City, Okla.), Vol. 32, No. 6, Ed. 1 Friday, October 4, 2002
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
October 4, 2002
Creator:
Baldwin, Alisha
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Strategic Petroleum Reserve
None
Date:
October 4, 2002
Creator:
Bamberger, Robert L.
Object Type:
Report
System:
The UNT Digital Library
Final Technical Report - A Combined Synthetic, Spectroscopic, and Theoretical Approach to the Rational Design of Photophysical and Photochemical Properties of Dendrimers
We summarize progress in the DOE project, "A Combined Synthetic, Spectroscopic, and Theoretical Approach to the Rational Design of Photophysical and Photochemical Properties of Dendrimers."
Date:
October 4, 2006
Creator:
Bardeen, C. J.; Martinez, T. J. & Moore, J. S.
Object Type:
Report
System:
The UNT Digital Library
Results of Groundwater Modeling for Tritium Tracking at the Hanford Site 200 Area State-Approved Land Disposal Site--2004
The model results presented in this report incorporates the reported data through June 2004 and then uses the updated discharge and tritium inventory values through 2034 based on more current information . Simulation results show that the tritium concentration in the aquifer reaching 1.6 million pCi/L in 1996 After that time, predicted concentration levels at the water table were variable ranging from just over 1 million to several hundred thousand pCi/L and on a downward trend by the year 2004, These simulated results generally reflect the changes in simulated monthly effluent discharges and tritium inventories discharged to the aquifer in the model analysis. These results are also generally consistent with tritium concentration levels and trends that have been observed in well 699-48-77A, the well south of the SALDS facility that is the first well impacted by SALDS operations. Given the differences between the smaller actual facility discharges and those projected in previous modeling, the updated 2004 model was generally consistent with previous estimates made with the 1997 model with regard to plume behavior. Concentrations for the updated model did not reach levels projected in 1997 and the plume did not extend as far out as was estimated in previous modeling. …
Date:
October 4, 2004
Creator:
Barnett, D BRENT.; Bergeron, Marcel P. & Freeman, Eugene J.
Object Type:
Report
System:
The UNT Digital Library
The “Farm Bill” in Brief
Federal farm support, food assistance, agricultural trade, marketing, and rural development policies are governed by a variety of separate laws. Many of these laws periodically have been evaluated, revised, and renewed through an omnibus, multi-year farm bill. This report discusses the "farm bill" and it's components.
Date:
October 4, 2006
Creator:
Becker, Geoffrey S.
Object Type:
Report
System:
The UNT Digital Library
The Colony Courier-Leader (The Colony, Tex.), Vol. 20, No. 34, Ed. 1 Thursday, October 4, 2001
Weekly newspaper from The Colony, Texas that includes local, state, and national news along with advertising.
Date:
October 4, 2001
Creator:
Beesley, Tom
Object Type:
Newspaper
System:
The Portal to Texas History
[Letter from Philip A. Berkebile to Aubrey Webb, October 4, 2004]
Letter from Philip A. Berkebile to Aubrey Webb on October 4, 2004 with the subject Nominating Committee. Berkebile thanks Webb for accepting TDNA's President Donnis Bagget's request to serve on the 2005 board of directors nomination committee. Serving with Webb will be Baggett, Bill Cornwell, Dan Savage and the committee chairman Wesley Turner.
Date:
October 4, 2004
Creator:
Berkebile, Philip A.
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Philip A. Berkebile to Bill Cornwell, October 4, 2004]
Letter from Philip A. Berkebile to Bill Cornwell, on October 4, 2004 with the subject Nominating Committee. The letter is in regard to Cornwell accepting President Donnis Baggett's request to serve on this year's Board of Directors Nomination Committee. Those serving with Cornwell are Baggett, Dan Savage, Aubrey Webb and the committee chairman Wesley Turner.
Date:
October 4, 2004
Creator:
Berkebile, Philip A.
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Philip A. Berkebile to Bob Carlquist, October 4, 2004]
Letter from Philip A. Berkebile, Executive Vice President at TDNA to Bob Carlquist to Executive VP and General Manager at the Houston Chronicle, on October 4, 2004. The letter is in regards to Carlquist being elected TDNA's treasurer for TDNA at the beginning of January 1, 2005 and on becoming the association's president in 2007.
Date:
October 4, 2004
Creator:
Berkebile, Philip A.
Object Type:
Letter
System:
The UNT Digital Library
[Letter from Philip A. Berkebile to Dan Savage, October 4, 2004]
Letter from Philip A. Berkebile to Dan Savage, October 4, 2004 with the subject Nomination Committee. The letter is in regards to Savage accepting President Donnis Baggett's request to serve on the 2005 Board of Directors Nominating Committee. Serving with Savage are Baggett, Bill Cornwell, Aubrey Webb and the committee chairman Wesley Turner. The purpose of the nominating committee is to fill four openings within the board members.
Date:
October 4, 2004
Creator:
Berkebile, Philip A.
Object Type:
Letter
System:
The UNT Digital Library
Report for the Office of Scientific and Technical Information: Population Modeling of the Emergence and Development of Scientific Fields
The accelerated development of digital libraries and archives, in tandem with efficient search engines and the computational ability to retrieve and parse massive amounts of information, are making it possible to quantify the time evolution of scientific literatures. These data are but one piece of the tangible recorded evidence of the processes whereby scientists create and exchange information in their journeys towards the generation of knowledge. As such, these tools provide a proxy with which to study our ability to innovate. Innovation has often been linked with prosperity and growth and, consequently, trying to understand what drives scientific innovation is of extreme interest. Identifying sets of population characteristics, factors, and mechanisms that enable scientific communities to remain at the cutting edge, accelerate their growth, or increase their ability to re-organize around new themes or research topics is therefore of special significance. Yet generating a quantitative understanding of the factors that make scientific fields arise and/or become more or less productive is still in its infancy. This is precisely the type of knowledge most needed for promoting and sustaining innovation. Ideally, the efficient and strategic allocation of resources on the part of funding agencies and corporations would be driven primarily by …
Date:
October 4, 2006
Creator:
Bettencourt, L. M. A. (LANL); Castillo-Chavez, C. (Arizona State University); Kaiser, D. (MIT) & Wojick, D. E. (IIA)
Object Type:
Report
System:
The UNT Digital Library
PILOT TESTING OF MERCURY OXIDATION CATALYSTS FOR UPSTREAM OF WET FGD SYSTEMS
This document summarizes progress on Cooperative Agreement DE-FC26-01NT41185, Pilot Testing of Mercury Oxidation Catalysts for Upstream of Wet FGD Systems, during the time period July 1, 2002 through September 30, 2002. The objective of this project is to demonstrate at pilot scale the use of solid honeycomb catalysts to promote the oxidation of elemental mercury in the flue gas from coal combustion. The project is being funded by the U.S. DOE National Energy Technology Laboratory under Cooperative Agreement DE-FC26-01NT41185. EPRI, Great River Energy (GRE), and City Public Service (CPS) of San Antonio are project co-funders. URS Group is the prime contractor. The mercury catalytic oxidation process under development uses catalyst materials applied to honeycomb substrates to promote the oxidation of elemental mercury in the flue gas from coal-fired power plants that have wet lime or limestone flue gas desulfurization (FGD) systems. Oxidized mercury is removed in the wet FGD absorbers and co-precipitates in a stable form with the byproducts from the FGD system. The coprecipitated mercury does not appear to adversely affect the disposal or reuse properties of the FGD byproduct. The current project will test previously identified, effective catalyst materials at a larger, pilot scale and in a commercial …
Date:
October 4, 2002
Creator:
Blythe, Gary M.
Object Type:
Report
System:
The UNT Digital Library
Jordan-U.S. Free Trade Agreement: Labor Issues
The U.S.-Jordan Free Trade Agreement (FTA), implemented as P.L. 107-43, breaks new ground in including multiple worker rights provisions in the body of a U.S. trade agreement, rather than as a side agreement, for the first time. For this reason, it adds some controversy to the congressional debate over whether worker rights provisions should be included in future trade agreements. This report will be updated as events warrant.
Date:
October 4, 2002
Creator:
Bolle, Mary Jane
Object Type:
Report
System:
The UNT Digital Library
Measurements of beta in B Decays to Charm and Charmonium at BaBar
In this article we will review recent BABAR measurements of Unitarity Triangle angle {beta} in B meson decays to charm and charmonium.
Date:
October 4, 2007
Creator:
Bomben, : M.
Object Type:
Article
System:
The UNT Digital Library
Overcoming the anaerobic hurdle in phenotypic microarrays: Generation andvisualization of growth curve data for Desulfovibrio vulgaris Hildenborough
Growing anaerobic microorganisms in phenotypic microarrays (PM) and 96-well microtiter plates is an emerging technology that allows high throughput survey of the growth and physiology and/or phenotype of cultivable microorganisms. For non-model bacteria, a method for phenotypic analysis is invaluable, not only to serve as a starting point for further evaluation, but also to provide a broad understanding of the physiology of an uncharacterized wild-type organism or the physiology/phenotype of a newly created mutant of that organism. Given recent advances in genetic characterization and targeted mutations to elucidate genetic networks and metabolic pathways, high-throughput methods for determining phenotypic differences are essential. Here we outline challenges presented in studying the physiology and phenotype of a sulfate reducing anaerobic delta proteobacterium, Desulfovibrio vulgaris Hildenborough. Modifications of the commercially available OmniLog(TM) system (Hayward, CA) for experimental setup, and configuration, as well as considerations in PM data analysis are presented. Also highlighted here is data viewing software that enables users to view and compare multiple PM data sets. The PM method promises to be a valuable strategy in our systems biology approach to D. vulgaris studies and is readily applicable to other anaerobic and aerobic bacteria.
Date:
October 4, 2008
Creator:
Borglin, Sharon E; Joyner, Dominique; Jacobsen, Janet; Mukhopadhyay, Aindrila & Hazen, Terry C.
Object Type:
Article
System:
The UNT Digital Library
The Goldthwaite Eagle (Goldthwaite, Tex.), Vol. 107, No. 12, Ed. 1 Thursday, October 4, 2001
Weekly newspaper from Goldthwaite, Texas that includes local, state, and national news along with extensive advertising.
Date:
October 4, 2001
Creator:
Bridges, G. Frank & Bridges, Georgie
Object Type:
Newspaper
System:
The Portal to Texas History