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1,774 Matching Results
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[Program: An Evening with Donnie Ray Albert]
Program for an operatic performance featuring Donnie Ray Albert and produced by the Black Academy of Arts and Letters on April 5, 2008 at the Clarence Muse Cafe Theatre.
Date:
April 2008
Creator:
Black Academy of Arts and Letters
Object Type:
Pamphlet
System:
The UNT Digital Library
[Program: Jazz Appreciation Month]
Program for the events for Jazz Appreciation Month scheduled and produced by the Black Academy of Arts and Letters in April 2008.
Date:
April 2, 2008
Creator:
Black Academy of Arts and Letters
Object Type:
Pamphlet
System:
The UNT Digital Library
[Program: Voices of Poetry #7]
Program for a poetry event produced by the Black Academy of Arts and Letters on April 10, 2008 at the Clarence Muse Cafe Theatre.
Date:
April 2008
Creator:
Black Academy of Arts and Letters
Object Type:
Pamphlet
System:
The UNT Digital Library
Solar Advisor Model; Session: Modeling and Analysis
This project supports the Solar America Initiative by: (1) providing a consistent framework for analyzing and comparing power system costs and performance across the range of solar technologies and markets, PV, solar heat systems, CSP, residential, commercial and utility markets; (2) developing and validating performance models to enable accurate calculation of levelized cost of energy (LCOE); (3) providing a consistent modeling platform for all TPP's; and (4) supporting implementation and usage of cost models.
Date:
April 1, 2008
Creator:
Blair, N.
Object Type:
Presentation
System:
The UNT Digital Library
Iraq: Oil and Gas Legislation, Revenue Sharing, and U.S. Policy
This report reviews the package of legislation currently under consideration, analyzes the positions of various Iraqi political actors, and discusses potential implications for U.S. foreign policy goals in Iraq.
Date:
April 2, 2008
Creator:
Blanchard, Christopher M.
Object Type:
Report
System:
The UNT Digital Library
Iraq: Regional Perspectives and U.S. Policy
This report provides information about the current perspectives and policies of Iraq's neighbors; analyzes potential regional responses to continued insurgency, sectarian and ethnic violence, and long-term stabilization; discusses shared concerns and U.S. long-term regional interests; and reviews U.S. policy options for responding to various contingencies.
Date:
April 4, 2008
Creator:
Blanchard, Christopher M.; Katzman, Kenneth; Migdalovitz, Carol; Prados, Alfred & Sharp, Jeremy
Object Type:
Report
System:
The UNT Digital Library
Doctoral Recital: 2008-04-11 - Kristan Blaylock, flute and piccolo
Recital presented at the UNT College of Music Concert Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date:
April 11, 2008
Creator:
Blaylock, Kristan
Object Type:
Sound
System:
The UNT Digital Library
Gamma-ray multiplicity measurement of the spontaneous fission decay of 252Cf in a segmented HPGe/BGO detector array
Coincident {gamma} rays from a {sup 252}Cf source were measured using an array of six segmented high-purity germanium (HPGe) Clover detectors each enclosed by 16 bismuth-germanate (BGO) detectors. The detectors were arranged in a cubic pattern around a 1 {micro}Ci {sup 252}Cf source to cover a large solid angle for {gamma}-ray measurement with a reasonable reconstruction of the multiplicity. Neutron multiplicity was determined in certain cases by identifying the prompt {gamma} rays from individual fission fragment pairs. Multiplicity distributions from previous experiments and theoretical models were convolved with the response function of the array and compared to the present results. These results suggest a {gamma}-ray multiplicity spectrum broader than previous measurements and models, and provide no evidence of correlation with neutron multiplicity.
Date:
April 23, 2008
Creator:
Bleuel, D L; Bernstein, L A; Burke, J T; Gibelin, J; Heffner, M D; Mintz, J et al.
Object Type:
Article
System:
The UNT Digital Library
Ambient-Pressure X-ray Photoelectron Spectroscopy
This workshop focused on the application of ambient pressure X-ray photoelectron spectroscopy (APXPS) to environmental science and catalysis. Pioneering work on APXPS was done in the early 1970's by Hans and Kai Siegbahn et al., who demonstrated that XPS can operate at pressures of up to 1 Torr. A new type of APXPS instrument that utilizes a differentially-pumped electrostatic lens system at the ALS in 2001 increased the pressure limit to above 5 Torr, which opened the door to XPS experiments on water and aqueous solutions at temperatures above the melting point, in equilibrium with the vapor pressure of water. The impact of APXPS on fields such as environmental and atmospheric science as well as heterogeneous catalysis is already visible in numerous high impact publications. Today several other synchrotron facilities around the world have already implemented beam lines for APXPS or planning to do so in the near future. The goal of this workshop (organized by Miquel Salmeron (Molecular Foundry, LBNL), B. Simon Mun (Advanced Light Source, LBNL) and Hendrik Bluhm (Chemical Sciences Division, LBNL)) was to bring together researchers interested in the technique, review its current progress, discuss scientific opportunities and desirable technical improvements as well as consider the …
Date:
April 1, 2008
Creator:
Bluhm, Hendrik; Bluhm, Hendrik; Mun, Bongjin Simon & Salmeron, Miquel
Object Type:
Article
System:
The UNT Digital Library
Dissipative Cryogenic Filters with Zero DC Resistance
The authors designed, implemented and tested cryogenic RF filters with zero DC resistance, based on wires with a superconducting core inside a resistive sheath. The superconducting core allows low frequency currents to pass with negligible dissipation. Signals above the cutoff frequency are dissipated in the resistive part due to their small skin depth. The filters consist of twisted wire pairs shielded with copper tape. Above approximately 1 GHz, the attenuation is exponential in {radical}{omega}, as typical for skin depth based RF filters. By using additional capacitors of 10 nF per line, an attenuation of at least 45 dB above 10 MHz can be obtained. Thus, one single filter stage kept at mixing chamber temperature in a dilution refrigerator is sufficient to attenuate room temperature black body radiation to levels corresponding to 10 mK above about 10 MHz.
Date:
April 22, 2008
Creator:
Bluhm, Hendrik; Moler, Kathryn A. & /Stanford U., Appl. Phys. Dept
Object Type:
Article
System:
The UNT Digital Library
The Effects of Parent Involvement in the Development of Children With Autistic Spectrum Disorders: A Work in Progress
Poster presentation for the 2008 University Scholars Day at the University of North Texas discussing research on the effects of parent involvement in the development of children with autistic spectrum disorders.
Date:
April 3, 2008
Creator:
Bonskowski, Marian & Eve, Susan Brown
Object Type:
Poster
System:
The UNT Digital Library
Searches for long lived particles at the Tevatron
Several searches have been performed for long lived particles using data collected by the CDF and D0 detectors at the Fermilab Tevatron collider. These include searches for charged massive stable particles, stopped gluinos, neutral long-lived particles decaying to muons, and magnetic monopoles. These proceedings [1] review recent experimental results from Run II analyses.
Date:
April 1, 2008
Creator:
Bose, Tulika & U., /Brown
Object Type:
Article
System:
The UNT Digital Library
CSI: Dognapping workshop : an outreach experiment designed to produce students that are hooked on science.
The CSI: Dognapping Workshop is a culmination of the more than 65 Sandian staff and intern volunteers dedication to exciting and encouraging the next generation of scientific leaders. This 2 hour workshop used a 'theatrical play' and 'hands on' activities that was fun, exciting and challenging for 3rd-5th graders while meeting science curriculum standards. In addition, new pedagogical methods were developed in order to introduce nanotechnology to the public. Survey analysis indicated that the workshop had an overall improvement and positive impact on helping the students to understand concepts from materials science and chemistry as well as increased our interaction with the K-5 community. Anecdotal analyses showed that this simple exercise will have far reaching impact with the results necessary to maintain the United States as the scientific leader in the world. This experience led to the initiation of over 100 Official Junior Scientists.
Date:
April 1, 2008
Creator:
Boyle, Timothy J.; Gorman, Anna K.; Pratt, Harry D., III; Hernandez-Sanchez, Bernadette A.; Lambert, Timothy N.; Ottley, Leigh Anna M. et al.
Object Type:
Report
System:
The UNT Digital Library
Dark Matter and Baryons in the Most X-ray Luminous and Merging Galaxy Cluster RX
None
Date:
April 11, 2008
Creator:
Bradac, Marusa; Schrabback, Tim; Erben, Thomas; McCourt, Michael; Million, Evan; Mantz, Adam et al.
Object Type:
Article
System:
The UNT Digital Library
NREL Core Program (NCPV), Session: Film Silicon
This project supports the Solar America Initiative by: R and D that contributes to goal of grid parity by 2015; research to fill the industry R and D pipeline for next-generation low-cost scalable products; development of industry collaborative research; and improvement of NREL tools and capabilities for film silicon research. The project addresses both parts of film silicon roadmap: (1) amorphous-silicon-based thin film PV--amorphous and nanocrystalline materials, present '2nd generation' technology, 4% of world PV sales in 2007; (2) advanced R and D toward film crystal silicon--definition, large-grained or single-crystal silicon < 100 {micro}m thick; 3-8 year horizon; and goal of reaching 15% cells at area costs approaching thin films.
Date:
April 1, 2008
Creator:
Branz, H. M.
Object Type:
Presentation
System:
The UNT Digital Library
Wafer Replacement Cluster Tool
This presentation on wafer replacement cluster tool discusses: (1) Platform for advanced R and D toward SAI 2015 cost goal--crystal silicon PV at area costs closer to amorphous Si PV, it's 15% efficiency, inexpensive substrate, and moderate temperature processing (<800 C); (2) Why silicon?--industrial and knowledge base, abundant and environmentally benign, market acceptance, and good efficiency; and (3) Why replace wafers?--expensive, high embedded energy content, and uses 50-100 times more silicon than needed.
Date:
April 1, 2008
Creator:
Branz, H. M.
Object Type:
Presentation
System:
The UNT Digital Library
The Goldthwaite Eagle (Goldthwaite, Tex.), Vol. 114, No. 39, Ed. 1 Wednesday, April 2, 2008
Weekly newspaper from Goldthwaite, Texas that includes local, state, and national news along with extensive advertising.
Date:
April 2, 2008
Creator:
Bridges, Steven W.
Object Type:
Newspaper
System:
The Portal to Texas History
The Goldthwaite Eagle (Goldthwaite, Tex.), Vol. 114, No. 40, Ed. 1 Wednesday, April 9, 2008
Weekly newspaper from Goldthwaite, Texas that includes local, state, and national news along with extensive advertising.
Date:
April 9, 2008
Creator:
Bridges, Steven W.
Object Type:
Newspaper
System:
The Portal to Texas History
The Goldthwaite Eagle (Goldthwaite, Tex.), Vol. 114, No. 41, Ed. 1 Wednesday, April 16, 2008
Weekly newspaper from Goldthwaite, Texas that includes local, state, and national news along with extensive advertising.
Date:
April 16, 2008
Creator:
Bridges, Steven W.
Object Type:
Newspaper
System:
The Portal to Texas History
The Goldthwaite Eagle (Goldthwaite, Tex.), Vol. 114, No. 42, Ed. 1 Wednesday, April 23, 2008
Weekly newspaper from Goldthwaite, Texas that includes local, state, and national news along with extensive advertising.
Date:
April 23, 2008
Creator:
Bridges, Steven W.
Object Type:
Newspaper
System:
The Portal to Texas History
The Goldthwaite Eagle (Goldthwaite, Tex.), Vol. 114, No. 43, Ed. 1 Wednesday, April 30, 2008
Weekly newspaper from Goldthwaite, Texas that includes local, state, and national news along with extensive advertising.
Date:
April 30, 2008
Creator:
Bridges, Steven W.
Object Type:
Newspaper
System:
The Portal to Texas History
Master's Recital: 2008-04-02 - Deanna Brizgys, clarinet
Access:
Use of this item is restricted to the UNT Community
Recital presented at the UNT College of Music Recital Hall in partial fulfillment of the Master of Music (MM) degree.
Date:
April 2, 2008
Creator:
Brizgys, Deanna
Object Type:
Sound
System:
The UNT Digital Library
The Baryon Anomaly: Evidence for Color Transparency and Direct Hadron Production at RHIC
We show that the QCD color transparency of higher-twist contributions to inclusive hadroproduction cross sections, where baryons are produced directly in a short distance subprocess, can explain several remarkable features of high-p{sub T} baryon production in heavy ion collisions which have recently been observed at RHIC: (a) the anomalous increase of the proton-to-pion ratio with centrality (b): the increased power-law fall-off at fixed x{sub T} = 2p{sub T}/{radical}s of the charged particle production cross section in high centrality nuclear collisions, and (c): the anomalous decrease of the number of same-side hadrons produced in association with a proton trigger as the centrality increases. We show that correlations between opposite-side hyperons and kaons can provide a clear signature of higher-twist contributions. These phenomena emphasize the importance of understanding hadronization at the amplitude level in QCD illustrate how heavy ion collisions can provide sensitive tools for interpreting and testing fundamental properties of QCD.
Date:
April 30, 2008
Creator:
Brodsky, Stanley J. & Sickles, Anne
Object Type:
Article
System:
The UNT Digital Library
Light-Front Dynamics and AdS/QCD Correspondence: Gravitational FormFactors of Composite Hadrons
None
Date:
April 11, 2008
Creator:
Brodsky, Stanley J. & de Teramond, Guy F.
Object Type:
Article
System:
The UNT Digital Library