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The Baytown Sun (Baytown, Tex.), Vol. 80, No. 78, Ed. 1 Tuesday, February 12, 2002
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
February 12, 2002
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 81, No. 79, Ed. 1 Wednesday, February 12, 2003
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
February 12, 2003
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 82, No. 72, Ed. 1 Thursday, February 12, 2004
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
February 12, 2004
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 85, No. 65, Ed. 1 Sunday, February 12, 2006
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
February 12, 2006
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
The J-TAC (Stephenville, Tex.), Vol. 181, No. 4, Ed. 1 Thursday, February 12, 2009
Weekly student newspaper from Tarleton State University in Stephenville, Texas that includes local, state and campus news along with advertising.
Date:
February 12, 2009
Creator:
Cedeno, Michael
Object Type:
Newspaper
System:
The Portal to Texas History
Anomalous Fermi-Surface Dependent Pairing in a Self-Doped High-T(c) Superconductor
We report the discovery of a self-doped multilayer high T{sub c} superconductor Ba{sub 2}Ca{sub 3}Cu{sub 4}O{sub 8}F{sub 2} (F0234) which contains distinctly different superconducting gap magnitudes along its two Fermi-surface sheets. While formal valence counting would imply this material to be an undoped insulator, it is a self-doped superconductor with a T{sub c} of 60 K, possessing simultaneously both electron- and hole-doped Fermi-surface sheets. Intriguingly, the Fermi-surface sheet characterized by the much larger gap is the electron-doped one, which has a shape disfavoring two electronic features considered to be important for the pairing mechanism: the van Hove singularity and the antiferromagnetic ({pi}/{alpha}, {pi}/{alpha}) scattering.
Date:
February 12, 2007
Creator:
Chen, Yulin; Iyo, Akira; Yang, Wanli; Zhou, Xingjiang; Lu, Donghui; Eisaki, Hiroshi et al.
Object Type:
Article
System:
The UNT Digital Library
CO2 Sequestration and Recycle by Photosynthesis
Hydrocarbon oxygenate synthesis from photocatalytic reactions of CO{sub 2} and H{sub 2}O over various catalysts is a very attractive process. However, the formation rate of the hydrocarbons and oxygenates is significantly lower than conventional catalysis. One possible reason for the low rate of product formation is the presence of oxidation sites which reoxidize the products back to CO{sub 2} and H{sub 2}O. For further improvement of catalytic activity for the reduction process, it is essential to understand the oxidation reaction process. We have studied photocatalytic oxidation of methylene blue and found the oxidation rate is significantly higher than the reduction rate.
Date:
February 12, 2006
Creator:
Chuang, Steven S.C.
Object Type:
Report
System:
The UNT Digital Library
CO2 Sequestration and Recycle by Photosynthesis
Hydrocarbon synthesis from photocatalytic reactions of CO{sub 2} and H{sub 2}O over various catalysts has been studied by UV-visible light. The quantum efficiencies suggest that Pd/TiO{sub 2} sol gel exhibits the highest activity for hydrocarbon synthesis from photocatalytic reactions. The in situ IR could successfully monitor the adsorbed hydrocarbon species. The UV-visible, IR spectroscopy and XRD techniques were used to characterize the catalysts to obtain the information of properties of the process and catalyst before/after reaction. The UV-visible spectroscopy provides the information about the surface band gap energy of each catalyst. In situ UV-visible studies reveals that TiO{sub 2}-supported catalysts require the higher energy (i.e. shorter wavelength) to pass through the water-thin film deposited on the surface to activate the photocatalytic reaction. XRD data show there is changes in the crystal structure of TiO{sub 2} sol gel from photon energy during photo reaction. The information from this study can lead to a better understanding of the nature of the catalysts and photoreaction processes, which might provide the information to develop better catalysts and reaction process for the hydrocarbon synthesis from photocatalytic reactions of CO{sub 2} and H{sub 2}O.
Date:
February 12, 2006
Creator:
Chuang, Steven S.C.
Object Type:
Report
System:
The UNT Digital Library
Dynamic simulation tools for the analysis and optimization of novel collection, filtration and sample preparation systems
The focus of research effort described here is to develop novel simulation tools to address design and optimization needs in the general class of problems that involve species and fluid (liquid and gas phases) transport through sieving media. This was primarily motivated by the heightened attention on Chem/Bio early detection systems, which among other needs, have a need for high efficiency filtration, collection and sample preparation systems. Hence, the said goal was to develop the computational analysis tools necessary to optimize these critical operations. This new capability is designed to characterize system efficiencies based on the details of the microstructure and environmental effects. To accomplish this, new lattice Boltzmann simulation capabilities where developed to include detailed microstructure descriptions, the relevant surface forces that mediate species capture and release, and temperature effects for both liquid and gas phase systems. While developing the capability, actual demonstration and model systems (and subsystems) of national and programmatic interest were targeted to demonstrate the capability. As a result, where possible, experimental verification of the computational capability was performed either directly using Digital Particle Image Velocimetry or published results.
Date:
February 12, 2006
Creator:
Clague, D; Weisgraber, T; Rockway, J & McBride, K
Object Type:
Report
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 86, No. 78, Ed. 1 Monday, February 12, 2007
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
February 12, 2007
Creator:
Clements, Clifford E.
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 88, No. 43, Ed. 1 Tuesday, February 12, 2008
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
February 12, 2008
Creator:
Clements, Clifford E.
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 89, No. 43, Ed. 1 Thursday, February 12, 2009
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
February 12, 2009
Creator:
Clements, Clifford E.
Object Type:
Newspaper
System:
The Portal to Texas History
Obscenity, Child Pornography, and Indecency: Recent Developments and Pending Issues
None
Date:
February 12, 2004
Creator:
Cohen, Henry
Object Type:
Report
System:
The UNT Digital Library
Compositing and Characterization of Samples from Hanford Tank 241-AY-102/ C-106
As part of the program to provide waste characterization and pretreatment data to support the Waste Treatment Plant WTP mission to treat Hanford tank waste, an approximate 3.8L sample of waste from Hanford Tank 241-AY-102/C-106 was received at the Savannah River Technology Center (SRTC). The waste sample was characterized to provide feed for pretreatment testing. The characterization data provides a basis for rational development of pretreatment processes, determination of reagent requirements, and development of physical design parameters for the pretreatment plant.
Date:
February 12, 2004
Creator:
Coleman, C. J.
Object Type:
Report
System:
The UNT Digital Library
AIDS in Africa
Sub-Saharan Africa has been far more severely affected by AIDS than any other part of the world. The United Nations reports that 25.3 million adults and children are infected with the HIV virus in the region, which has about 10% of the world's population but more than 70% of the worldwide total of infected people. This report discusses this issue in detail, including the cause of the African AIDS epidemic, the social and economic consequences, response and treatment, and U.S. policy.
Date:
February 12, 2002
Creator:
Copson, Raymond W.
Object Type:
Report
System:
The UNT Digital Library
USDOE - Final report 2000/2001 [Global Environmental Multiscale (GEM) global variable resolution model]
The global variable resolution (Global Environmental Multiscale--GEM) model was developed into a very efficient parallel forecast model. It is being evaluated for climate simulations. Various aspects of the nested grid methodology for regional climate change studies were investigated with the Canadian Regional Climate Model. The parallel performance of the GEM model is now such that a high-resolution (1/2 degree) climate simulation is now possible on Environment Canada supercomputers. This high-resolution climate simulation will serve to compare the nested grid approach to the variable grid one in controlled numerical experiments. Benchmarking of the parallel Stretched-Grid GEOS has been initiated on Environment Canada supercomputers. Two workshops on regional climate modeling were held.
Date:
February 12, 2001
Creator:
Cote, Jean
Object Type:
Report
System:
The UNT Digital Library
GLASS FABRICATION AND PRODUCT CONSISTENCY TESTING OF LANTHANIDE BOROSILICATE GLASS FOR PLUTONIUM DISPOSITION
The Department of Energy Office of Environmental Management (DOE/EM) plans to conduct the Plutonium Disposition Project at the Savannah River Site (SRS) in Aiken, SC, to disposition excess weapons-usable plutonium. A plutonium glass waste form is a leading candidate for immobilization of the plutonium for subsequent disposition in a geologic repository. The objectives of this present task were to fabricate plutonium-loaded lanthanide borosilicate (LaBS) Frit B glass and perform testing to provide near-term data that will increase confidence that LaBS glass product is suitable for disposal in the proposed Federal Repository. Specifically, testing was conducted in an effort to provide data to Yucca Mountain Project (YMP) personnel for use in performance assessment calculations. Plutonium containing LaBS glass with the Frit B composition with a 9.5 wt% PuO{sub 2} loading was prepared for testing. Glass was prepared to support glass durability testing via the ASTM Product Consistency Testing (PCT) at Savannah River National Laboratory (SRNL). The glass was characterized with X-ray diffraction (XRD) and scanning electron microscopy coupled with energy dispersive spectroscopy (SEM/EDS) prior to performance testing. This characterization revealed some crystalline PuO{sub 2} inclusions with disk-like morphology present in the as fabricated, quench-cooled glass. A series of PCTs was conducted …
Date:
February 12, 2007
Creator:
Crawford, C; James Marra, J & Ned Bibler, N
Object Type:
Article
System:
The UNT Digital Library
The University News (Irving, Tex.), Vol. 38, No. 15, Ed. 1 Tuesday, February 12, 2008
Weekly student newspaper from the University of Dallas in Irving, Texas that includes campus news and commentaries along with advertising.
Date:
February 12, 2008
Creator:
Crotty, Sarah
Object Type:
Newspaper
System:
The Portal to Texas History
Sudan: The Crisis in Darfur and Status of the North-South Peace Agreement
This report discusses the history of Sudan's civil unrest and the subsequent crisis in Darfur, as well as United Nations and United States aid and peacekeeping efforts, and current related policy under the Obama Administration.
Date:
February 12, 2009
Creator:
Dagne, Ted
Object Type:
Report
System:
The UNT Digital Library
Oral History Interview with Joseph Dague, February 12, 2005
The National Museum of the Pacific War presents an interview with Joseph Dague. Dague joined the Army Air Forces Cadet Program in May of 1943. He trained on PT-17s, PT-13s, AT-10s, AT-6s and B-25s. He graduated from flying school in 1944 and transferred to the 434th Troop Carrier Command and went to George Field, Illinois. They were trained in pulling gliders and dropping paratroopers and supplies. He pulled Waco gliders and provides some detail of this experience. Dague worked on aircraft and at a railroad shop, filling box cars, though he never shipped out. He was discharged in 1946 as a second lieutenant. Upon being discharged he opted to sign up for active reserves, which he served in for 20 years. He served also in the Vietnam War and provides some details of those experiences.
Date:
February 12, 2005
Creator:
Dague, Joseph
Object Type:
Text
System:
The Portal to Texas History
Signatures of Spherical Compactifications at the LHC
TeV-scale extra dimensions may play an important role in electroweak or supersymmetry breaking. We examine the phenomenology of such dimensions, compactified on a sphere S{sup n}, n {ge} 2, and show that they possess distinct features and signatures. For example, unlike flat toroidal manifolds, spheres do not trivially allow fermion massless modes. Acceptable phenomenology then generically leads to ''non-universal'' extra dimensions with ''pole-localized'' 4-d fermions; the bosonic fields can be in the bulk. Due to spherical symmetry, some Kaluza-Klein (KK) modes of bulk gauge fields are either stable or extremely long-lived, depending on the graviton KK spectrum. Using precision electroweak data, we constrain the lightest gauge field KK modes to lie above {approx_equal} 4 TeV. We show that some of these KK resonances are within the reach of the LHC in several different production channels. The models we study can be uniquely identified by their collider signatures.
Date:
February 12, 2007
Creator:
Davoudiasl, Hooman & Rizzo, Thomas G.
Object Type:
Article
System:
The UNT Digital Library
Endoscopic subsurface imaging in tissues
The objective of this work is to develop endoscopic subsurface optical imaging technology that will be able to image different tissue components located underneath the surface of the tissue at an imaging depth of up to 1 centimeter. This effort is based on the utilization of existing technology and components developed for medical endoscopes with the incorporation of the appropriate modifications to implement the spectral and polarization difference imaging technique. This subsurface imaging technique employs polarization and spectral light discrimination in combination with image processing to remove a large portion of the image information from the outer layers of the tissue which leads to enhancement of the contrast and image quality of subsurface tissue structures.
Date:
February 12, 2001
Creator:
Demos, S G; Staggs, M & Radousky, H B
Object Type:
Article
System:
The UNT Digital Library
First Stabilization and Disposal of Radioactive Zinc Bromide at the SRS
Facilities Disposition Projects (FDP) personnel at Savannah River Site (SRS) implement the Inactive Facility Risk Management Program to drive down risk and costs in SRS inactive facilities. The program includes cost-effective techniques to identify and dispose of hazardous chemicals and radioactive waste from inactive facilities, thereby ensuring adequate protection of the public, workers and the environment. In June 1998, FDP conducted an assessment of the inactive C-Reactor Facility to assure that chemical and radiological hazards had been identified and were being safely managed. The walkdown identified the need to mitigate a significant hazard associated with storing approximately 13,400 gallons of liquid radioactive Zinc Bromide in three aging railcar tankers outside of the facility. No preventive maintenance was being performed on the rusting tankers and a leak could send radioactive Zinc Bromide into an outfall and offsite to the Savannah River. In 2001, DOE-Savannah River (DOE- SR) funded the FDP to eliminate the identified hazard by disposing of the radioactive Zinc Bromide solution and the three contaminated railcar tankers. This paper describes the innovative, cost-effective approaches and technology used to perform the first stabilization and disposal of radioactive Zinc Bromide at SRS.
Date:
February 12, 2003
Creator:
Denny, J.K.
Object Type:
Article
System:
The UNT Digital Library
Ensemble: 2007-02-12 – Denton High School Ensembles
Access:
Use of this item is restricted to the UNT Community
Denton High School ensembles concert performed at UNT College of Music Winspear Hall.
Date:
February 12, 2007
Creator:
Denton High School Chamber Orchestra
Object Type:
Sound
System:
The UNT Digital Library