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15th Street News (Midwest City, Okla.), Vol. 39, No. 26, Ed. 1 Friday, April 30, 2010
Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date:
April 30, 2010
Creator:
Price, Racheal
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
2010 Census: Cooperation with Enumerators Is Critical to a Successful Headcount
Testimony issued by the Government Accountability Office with an abstract that begins "On May 1, 2010, the U.S. Census Bureau (Bureau) will launch its massive follow-up effort with the roughly 48 million households that did not mail back their census forms (130 million forms were delivered). As part of this nonresponse follow-up effort, over 600,000 enumerators will fan out across the country, personally contacting nonresponding housing units as many as six times in an effort to ensure everyone is counted. As requested, GAO's testimony in Los Angeles (L.A.) focuses on the importance of census participation, paying particular attention to (1) the Bureau's preparedness for nonresponse follow-up in terms of workload and staffing levels, (2) why it will be critical for Angelenos and others across the country to cooperate with enumerators during nonresponse follow-up, and (3) key steps the Bureau needs to take moving forward to ensure nonresponse follow-up is timely and accurate. The testimony is based on previously issued and ongoing GAO work."
Date:
April 30, 2010
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Agency for Toxic Substances and Disease Registry: Policies and Procedures for Public Health Product Preparation Should Be Strengthened
A letter report issued by the Government Accountability Office with an abstract that begins "The Agency for Toxic Substances and Disease Registry (ATSDR) has faced concerns related to the quality of some of the public health products it publishes. ATSDR investigates community exposures related to certain hazardous chemical sites and releases; assesses associated health effects; and recommends actions to stop, prevent, or minimize harmful effects. ATSDR publishes many types of products, including public health assessments, health consultations, exposure investigations, and health study reports. GAO was asked to examine the extent to which ATSDR's policies and procedures for product preparation, including work initiation, product development, and review and clearance, provide reasonable assurance of product quality. GAO reviewed ATSDR policies and procedures and interviewed agency officials and employees."
Date:
April 30, 2010
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
The Altus Times (Altus, Okla.), Vol. 112, No. 104, Ed. 1 Friday, April 30, 2010
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 30, 2010
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Angle-Resolved Photoemission Spectroscopy on Electronic Structure and Electron-Phonon Coupling in Cuprate Superconductors
In addition to the record high superconducting transition temperature (T{sub c}), high temperature cuprate superconductors are characterized by their unusual superconducting properties below T{sub c}, and anomalous normal state properties above T{sub c}. In the superconducting state, although it has long been realized that superconductivity still involves Cooper pairs, as in the traditional BCS theory, the experimentally determined d-wave pairing is different from the usual s-wave pairing found in conventional superconductors. The identification of the pairing mechanism in cuprate superconductors remains an outstanding issue. The normal state properties, particularly in the underdoped region, have been found to be at odd with conventional metals which is usually described by Fermi liquid theory; instead, the normal state at optimal doping fits better with the marginal Fermi liquid phenomenology. Most notable is the observation of the pseudogap state in the underdoped region above T{sub c}. As in other strongly correlated electrons systems, these unusual properties stem from the interplay between electronic, magnetic, lattice and orbital degrees of freedom. Understanding the microscopic process involved in these materials and the interaction of electrons with other entities is essential to understand the mechanism of high temperature superconductivity. Since the discovery of high-T{sub c} superconductivity in cuprates, …
Date:
April 30, 2010
Creator:
Zhou, X.J.
Object Type:
Article
System:
The UNT Digital Library
ASPH modeling of Material Damage and Failure
We describe our new methodology for Adaptive Smoothed Particle Hydrodynamics (ASPH) and its application to problems in modeling material failure. We find that ASPH is often crucial for properly modeling such experiments, since in most cases the strain placed on materials is non-isotropic (such as a stretching rod), and without the directional adaptability of ASPH numerical failure due to SPH nodes losing contact in the straining direction can compete with or exceed the physical process of failure.
Date:
April 30, 2010
Creator:
Owen, J M
Object Type:
Article
System:
The UNT Digital Library
[Audience at Lryic Theatre]
Photograph of audience members sitting at tables in Lyric Theatre before a performance by the University of North Texas Jazz Singers.
Date:
April 30, 2010
Creator:
University of North Texas. College of Music.
Object Type:
Photograph
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 90, No. 86, Ed. 1 Friday, April 30, 2010
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
April 30, 2010
Creator:
Halter, Janie
Object Type:
Newspaper
System:
The Portal to Texas History
The Boerne Star (Boerne, Tex.), Vol. 104, No. 35, Ed. 1 Friday, April 30, 2010
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
April 30, 2010
Creator:
Cartwright, Brian & Velvin, Candace E.
Object Type:
Newspaper
System:
The Portal to Texas History
Coarse Spaces by Algebraic Multigrid: Multigrid Convergence and Upscaled Error Estimates
We give an overview of a number of algebraic multigrid methods targeting finite element discretization problems. The focus is on the properties of the constructed hierarchy of coarse spaces that guarantee (two-grid) convergence. In particular, a necessary condition known as 'weak approximation property', and a sufficient one, referred to as 'strong approximation property' are discussed. Their role in proving convergence of the TG method (as iterative method) and also on the approximation properties of the AMG coarse spaces if used as discretization tool is pointed out. Some preliminary numerical results illustrating the latter aspect are also reported.
Date:
April 30, 2010
Creator:
Vassilevski, P S
Object Type:
Article
System:
The UNT Digital Library
Computational Design and Prototype Evaluation of Aluminide-Strengthened Ferritic Superalloys for Power-Generating Turbine Applications up to 1,033 K
The objective of the proposed research is to utilize modern computational tools, integrated with focused experiments, to design innovative ferritic NiAl-strengthened superalloys for fossil-energy applications at temperatures up to 1,033 K. Specifically, the computational alloy design aims toward (1) a steady-state creep rate of approximately 3 x 10{sup -11} s{sup -1} at a temperature of 1,033 K and a stress level of 35 MPa, (2) a ductility of 10% at room temperature, and (3) good oxidation and corrosion resistance at 1,033 K. The research yielded many outstanding research results, including (1) impurity-diffusion coefficients in {alpha} Fe have been calculated by first principles for a variety of solute species; (2) the precipitates were characterized by the transmission-electron microscopy (TEM) and analytical-electron microscopy (AEM), and the elemental partitioning has been determined; (3) a bending ductility of more than 5% has been achieved in the unrolled materials; and (4) optimal compositions with minimal secondary creep rates at 973 K have been determined. Impurity diffusivities in {alpha} Fe have been calculated within the formalisms of a harmonic transition-state theory and Le Claire nine-frequency model for vacancy-mediated diffusion. Calculated diffusion coefficients for Mo and W impurities are comparable to or larger than that for Fe …
Date:
April 30, 2010
Creator:
Liaw, Peter; Ghosh, Gautam; Asta, Mark; Fine, Morris & Liu, Chain
Object Type:
Report
System:
The UNT Digital Library
Critical thickness for itinerant ferromagnetism in ultrathin films of SrRuO3
None
Date:
April 30, 2010
Creator:
Xia, J.
Object Type:
Article
System:
The UNT Digital Library
Dallas Voice (Dallas, Tex.), Vol. 26, No. 50, Ed. 1 Friday, April 30, 2010
Weekly newspaper from Dallas, Texas that includes local, state, and national news and advertising of interest to the Lesbian, Gay, Bisexual, and Transgender (LGBT) community.
Date:
April 30, 2010
Creator:
Nash, Tammye
Object Type:
Newspaper
System:
The UNT Digital Library
Defense Infrastructure: DOD Needs to Determine and Use the Most Economical Building Materials and Methods When Acquiring New Permanent Facilities
A letter report issued by the Government Accountability Office with an abstract that begins "To meet the challenges associated with a threefold increase in the Army's military construction program between fiscal years 2005 and 2009, the Army adopted numerous changes, including the expanded use of wood materials and modular building methods, designed to reduce building costs and timelines for new facilities. With the changes, the Army set goals to reduce building costs by 15 percent and timelines by 30 percent. The Army, Navy, and Air Force have also faced challenges associated with incorporating both antiterrorism construction standards and sustainable design ("green") goals into new facilities. GAO was asked to (1) assess the Army's progress in meeting its goals, (2) evaluate the merits from the Army's expanded use of wood materials and modular building methods, and (3) examine potential conflicts between antiterrorism construction standards and sustainable design goals. GAO reviewed relevant documentation, interviewed cognizant service officials, analyzed selected construction project data, and visited five Army installations to review facilities built with alternative materials and methods."
Date:
April 30, 2010
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Defense Logistics: Actions Needed to Improve Implementation of the Army Logistics Modernization Program
A letter report issued by the Government Accountability Office with an abstract that begins "The Logistics Modernization Program (LMP) is an Army business system that is intended to replace the aging Army systems that manage inventory and depot repair operations. Through 2009, the Army obligated more than $1 billion for LMP. LMP was originally scheduled to be completed by 2005, but after the first deployment in July 2003, the Army delayed fielding because of significant problems. The Army has since decided to field the system in two additional deployments: the second deployment occurred in May 2009, and the third deployment is scheduled to occur in October 2010. GAO was asked to evaluate the effectiveness of the Army's management processes in enabling the second deployment sites to realize the full benefits of LMP."
Date:
April 30, 2010
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Department of Homeland Security Assistance to States and Localities: A Summary and Issues for the 111th Congress
This report summarizes several emergency management and homeland security programs, and identifies and analyzes potential issues for the 111th Congress. These issues include the purpose and number of assistance programs; the evaluation of the use of grant funding; the determination of eligible grant recipients; the programs' funding amounts; and the programs; funding distribution methodologies.
Date:
April 30, 2010
Creator:
Reese, Shawn
Object Type:
Report
System:
The UNT Digital Library
Development of ENDF/B-VII.1 and Its Covariance Component
The US nuclear data community, coordinated by CSEWG, is preparing release of the ENDF/B-VII.1 library. This new release will address deficiencies identified in ENDF/B-VII.0, include improved evaluations for some 50-60 materials and provide covariances for more than 110 materials. The major players in this undertaking are LANL, BNL, ORNL, and LLNL. We summarize deficiencies in the ENDF/B-VII.0 and outline development of the new library. We concentrate on the BNL activities which aim in providing covariances for the materials important for the design of the innovative reactors. Finally we outline a futuristic approach, known as assimilation that tries to link nuclear reaction theory and integral experiments.
Date:
April 30, 2010
Creator:
Herman, M.
Object Type:
Report
System:
The UNT Digital Library
Direct Carbon Fuel Cell System Utilizing Solid Carbonaceous Fuels
This 1-year project has achieved most of its objective and successfully demonstrated the viability of the fluidized bed direct carbon fuel cell (FB-DCFC) approach under development by Direct Carbon technologies, LLC, that utilizes solid carbonaceous fuels for power generation. This unique electrochemical technology offers high conversion efficiencies, produces proportionately less CO{sub 2} in capture-ready form, and does not consume or require water for gasification. FB-DCFC employs a specialized solid oxide fuel cell (SOFC) arrangement coupled to a Boudouard gasifier where the solid fuel particles are fluidized and reacted by the anode recycle gas CO{sub 2}. The resulting CO is electrochemically oxidized at the anode. Anode supported SOFC structures employed a porous Ni cermet anode layer, a dense yttria stabilized zirconia membrane, and a mixed conducting porous perovskite cathode film. Several kinds of untreated solid fuels (carbon and coal) were tested in bench scale FBDCFC prototypes for electrochemical performance and stability testing. Single cells of tubular geometry with active areas up to 24 cm{sup 2} were fabricated. The cells achieved high power densities up to 450 mW/cm{sup 2} at 850 C using a low sulfur Alaska coal char. This represents the highest power density reported in the open literature for coal …
Date:
April 30, 2010
Creator:
Gur, Turgut
Object Type:
Report
System:
The UNT Digital Library
A Discussion of Reversible and Irreversible Sorption for Sr, Cs, Np, and Pu
None
Date:
April 30, 2010
Creator:
Carroll, S.; Tinnacher, R.; Kersting, A. & Zavarin, M.
Object Type:
Report
System:
The UNT Digital Library
Doctoral Lecture Recital: 2010-04-30 – Wen-Chien Tang, piano
Recital presented at the UNT College of Music Recital Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date:
April 30, 2010
Creator:
Tang, Wen-Chien
Object Type:
Sound
System:
The UNT Digital Library
Doctoral Recital: 2010-04-30 - Kuo-Ying Lee, piano
Recital presented at the UNT College of Music Recital Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date:
April 30, 2010
Creator:
Lee, Kuo-Ying
Object Type:
Sound
System:
The UNT Digital Library
Doctoral Recital: 2010-04-30 - Soohee Jung, soprano
Recital presented at the UNT College of Music Recital Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date:
April 30, 2010
Creator:
Jung, Soohee
Object Type:
Sound
System:
The UNT Digital Library
Doping evolution of the electronic structure in the single-layer cuprates Bi2Sr2−xLaxCuO6 delta: Comparison with other single-layer cuprates
We have performed angle-resolved photoemission and core-level x-ray photoemission studies of the single-layer cuprate Bi{sub 2}Sr{sub 2-x}La{sub x}CuO{sub 6+{delta}} (Bi2201) and revealed the doping evolution of the electronic structure from the lightly-doped to optimally-doped regions. We have observed the formation of the dispersive quasi-particle band, evolution of the Fermi 'arc' into the Fermi surface and the shift of the chemical potential with hole doping as in other cuprates. The doping evolution in Bi2201 is similar to that in Ca{sub 2-x}Na{sub x}CuO{sub 2}Cl{sub 2} (Na-CCOC), where a rapid chemical potential shift toward the lower Hubbard band of the parent insulator has been observed, but is quite different from that in La{sub 2-x}Sr{sub x}CuO{sub 4} (LSCO), where the chemical potential does not shift, yet the dispersive band and the Fermi arc/surface are formed around the Fermi level already in the lightly-doped region. The (underlying) Fermi surface shape and band dispersions are quantitatively analyzed using tightbinding fit, and the deduced next-nearest-neighbor hopping integral t also confirm the similarity to Na-CCOC and the difference from LSCO.
Date:
April 30, 2010
Creator:
Hashimoto, M.
Object Type:
Article
System:
The UNT Digital Library
Eastern Statesman (Wilburton, Okla.), Vol. 88, No. 13, Ed. 1 Friday, April 30, 2010
Bimonthly student newspaper from Eastern Oklahoma State College in Wilburton, Oklahoma that includes local, state, and campus news along with advertising.
Date:
April 30, 2010
Creator:
Miller, Nick
Object Type:
Newspaper
System:
The Gateway to Oklahoma History