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MODIFIED BOROHYDRIDES FOR REVERSIBLE HYDROGEN STORAGE (open access)

MODIFIED BOROHYDRIDES FOR REVERSIBLE HYDROGEN STORAGE

This paper reports the results in the effort to destabilize lithium borohydride for reversible hydrogen storage. A number of metals, metal hydrides, metal chlorides and complex hydrides were selected and evaluated as the destabilization agents for reducing dehydriding temperature and generating dehydriding-rehydriding reversibility. It is found that some additives are effective. The Raman spectroscopic analysis shows the change of B-H binding nature.
Date: May 10, 2006
Creator: Au, Ming
Object Type: Article
System: The UNT Digital Library
Search for the Decay B^0 -> a^\pm_1 \rho^\mp (open access)

Search for the Decay B^0 -> a^\pm_1 \rho^\mp

The authors present a search for the rare B-meson decay B{sup 0} {yields} {alpha}{sub 1}{sup {+-}}{rho}{sup {-+}} with {alpha}{sub 1}{sup {+-}} {yields} {pi}{sup +}{pi}{sup -}{pi}{sup {+-}}. We use (110 {+-} 1.2) x 10{sup 6} {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at the PEp-II asymmetric-energy B Factory at SLAC. They obtain an upper limit of 30 x 10{sup -6} (90% C.L.) for the branching fraction product {Beta}(B{sup 0} {yields} {alpha}{sub 1}{sup {+-}}{rho}{sup {-+}}) {Beta}({alpha}{sub 1}{sup {+-}} {yields} {pi}{sup +}{pi}{sup -}{pi}{sup {+-}}), where they assume that the {alpha}{sub 1}{sup {+-}} decays exclusively to {rho}{sup 0}{pi}{sup {+-}}.
Date: May 10, 2006
Creator: Aubert, B.
Object Type: Report
System: The UNT Digital Library
The Goldthwaite Eagle (Goldthwaite, Tex.), Vol. 111, No. 40, Ed. 1 Wednesday, May 10, 2006 (open access)

The Goldthwaite Eagle (Goldthwaite, Tex.), Vol. 111, No. 40, Ed. 1 Wednesday, May 10, 2006

Weekly newspaper from Goldthwaite, Texas that includes local, state, and national news along with extensive advertising.
Date: May 10, 2006
Creator: Bridges, Steven W.
Object Type: Newspaper
System: The Portal to Texas History
Energetic feedback in galaxies: Processing of interstellar silicate grains by cosmic rays (open access)

Energetic feedback in galaxies: Processing of interstellar silicate grains by cosmic rays

The formation and evolution of stars and galaxies is a complex process that involves the cooling and collapse of dense interstellar clouds as well as energetic feedback on these clouds. Interstellar dust grains are central to the radiative transfer, thermal balance, and molecular processes in these clouds and can provide an important diagnostic. Hence, the effects of energetic processing of interstellar dust may have significant consequences. r This may be studied in our own Galaxy, where observations have shown that an appreciable fraction of silicates formed in the outflows from red giants and supergiants have a crystalline structure. Yet, the fraction of crystalline silicates in the interstellar medium is very small, pointing towards an efficient crystalline crystalline-to to-amorphous conversion process. Here we report experimental and modeling results that show that relatively ''low'' energy (0.1 - 5.0 GeV) heavy ion cosmic rays can rapidly ({approx}70 Million yrs) amorphize crystalline silicate grains ejected by stars into the interstellar medium. The implications of this are briefly discussed. We also examine the effects of cosmic ray processing of silicates in the solar system and in stellar debris disks. In the latter systems, cosmic ray processing may play a role for grains trapped in resonance …
Date: May 10, 2006
Creator: Bringa, E M; Kucheyev, S O; Loeffler, M J; Baragiola, R A; Tielens, A G W M; Dai, Z R et al.
Object Type: Article
System: The UNT Digital Library
Perry Daily Journal (Perry, Okla.), Vol. 114, No. 92, Ed. 1 Wednesday, May 10, 2006 (open access)

Perry Daily Journal (Perry, Okla.), Vol. 114, No. 92, Ed. 1 Wednesday, May 10, 2006

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date: May 10, 2006
Creator: Brown, Gloria
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Express-Star (Chickasha, Okla.), Ed. 1 Wednesday, May 10, 2006 (open access)

The Express-Star (Chickasha, Okla.), Ed. 1 Wednesday, May 10, 2006

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: May 10, 2006
Creator: Bush, Kent
Object Type: Newspaper
System: The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 107, No. 340, Ed. 1 Wednesday, May 10, 2006 (open access)

Altus Times (Altus, Okla.), Vol. 107, No. 340, Ed. 1 Wednesday, May 10, 2006

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: May 10, 2006
Creator: Bush, Michael
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Baytown Sun (Baytown, Tex.), Vol. 85, No. 150, Ed. 1 Wednesday, May 10, 2006 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 85, No. 150, Ed. 1 Wednesday, May 10, 2006

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: May 10, 2006
Creator: Cash, Wanda Garner
Object Type: Newspaper
System: The Portal to Texas History
Physical controls on directed virus assembly at nanoscale chemical templates (open access)

Physical controls on directed virus assembly at nanoscale chemical templates

Viruses are attractive building blocks for nanoscale heterostructures, but little is understood about the physical principles governing their directed assembly. In-situ force microscopy was used to investigate organization of Cowpea Mosaic Virus engineered to bind specifically and reversibly at nanoscale chemical templates with sub-30nm features. Morphological evolution and assembly kinetics were measured as virus flux and inter-viral potential were varied. The resulting morphologies were similar to those of atomic-scale epitaxial systems, but the underlying thermodynamics was analogous to that of colloidal systems in confined geometries. The 1D templates biased the location of initial cluster formation, introduced asymmetric sticking probabilities, and drove 1D and 2D condensation at subcritical volume fractions. The growth kinetics followed a t{sup 1/2} law controlled by the slow diffusion of viruses. The lateral expansion of virus clusters that initially form on the 1D templates following introduction of polyethylene glycol (PEG) into the solution suggests a significant role for weak interaction.
Date: May 10, 2006
Creator: Cheung, C. L.; Chung, S.; Chatterji, A.; Lin, T.; Johnson, J. E.; Hok, S. et al.
Object Type: Article
System: The UNT Digital Library
Lessons Learned- The Use of Formal Expert Elicitation in Probablistic Seismic Hazard (open access)

Lessons Learned- The Use of Formal Expert Elicitation in Probablistic Seismic Hazard

Probabilistic seismic hazard analyses provide the opportunity, indeed the requirement, to quantify the uncertainties in important inputs to the analysis. The locations of future earthquakes, their recurrence rates and maximum size, and the ground motions that will result at a site of interest are all quantities that require careful consideration because they are uncertain. The earliest PSHA models [Cornell, 1968] provided solely for the randomness or aleatory variability in these quantities. The most sophisticated seismic hazard models today, which include quantified uncertainties, are merely more realistic representations of this basic aleatory model. All attempts to quantify uncertainties require expert judgment. Further, all uncertainty models should endeavor to consider the range of views of the larger technical community at the time the hazard analysis is conducted. In some cases, especially for large projects under regulatory review, formal structured methods for eliciting expert judgments have been employed. Experience has shown that certain key elements are required for these assessments to be successful, including: (1) experts should be trained in probability theory, uncertainty quantification, and ways to avoid common cognitive biases; (2) comprehensive and user-friendly databases should be provided to the experts; (3) experts should be required to evaluate all potentially credible hypotheses; …
Date: May 10, 2006
Creator: Coppersmith, K. J.; Perman, R. C. & Youngs, R. R.
Object Type: Report
System: The UNT Digital Library
The Colony Courier-Leader (The Colony, Tex.), Vol. 25, No. 14, Ed. 1 Wednesday, May 10, 2006 (open access)

The Colony Courier-Leader (The Colony, Tex.), Vol. 25, No. 14, Ed. 1 Wednesday, May 10, 2006

Weekly newspaper from The Colony, Texas that includes local, state, and national news along with advertising.
Date: May 10, 2006
Creator: Crimmins, Blaine
Object Type: Newspaper
System: The Portal to Texas History
REVIEW OF FORWARD PHYSICS AT RHIC. (open access)

REVIEW OF FORWARD PHYSICS AT RHIC.

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Date: May 10, 2006
Creator: DEBBE, R. & COLLABORATION), (FOR THE BRAHMS
Object Type: Article
System: The UNT Digital Library
Modelling the Pan-Spectral Energy Distribution of Starburst Galaxies: III. Emission Line Diagnostics of Ensembles of H II Regions (open access)

Modelling the Pan-Spectral Energy Distribution of Starburst Galaxies: III. Emission Line Diagnostics of Ensembles of H II Regions

We have built, as far as possible, fully self-consistent models of H II regions around aging clusters of stars. These produce strong emission line diagnostics applicable to either individual H II regions in galaxies, or to the integrated emission line spectra of disk or starburst galaxies. The models assume that the expansion and internal pressure of individual H II regions is driven by the net input of mechanical energy from the central cluster, be it through winds or supernova events. This eliminates the ionization parameter as a free variable, replacing it with a parameter which depends on the ratio of the cluster mass to the pressure in the surrounding interstellar medium. These models explain why H II regions with low abundances have high excitation, and demonstrate that at least part of the warm ionized medium is the result of overlapping faint, old, large, and low pressure H II regions. We present a number of line ratios (at both optical and IR wavelengths) that provide reliable abundance diagnostics for either single H II regions or for integrated galaxy spectra, and others that are sensitive to the age of the cluster stars exciting individual H II regions.
Date: May 10, 2006
Creator: Dopita, M A; Fischera, J; Sutherland, R S; Kewley, L J; Leitherer, C; Tuffs, R J et al.
Object Type: Article
System: The UNT Digital Library
Geology and Stratigraphy of the East and West Firing Areas Lawrence Livermore National Laboratory Site 300 (open access)

Geology and Stratigraphy of the East and West Firing Areas Lawrence Livermore National Laboratory Site 300

The purpose of this project is to gain a better understanding of the stratigraphy and geologic structure of the East and West Firing Areas, at Lawrence Livermore National Laboratory Site 300 (Figure 1). This analysis is designed to help better delineate hydrostratigraphic units (HSUs) in order to enhance the understanding of the fate and transport of contaminants in the subsurface. Specific objectives of the investigation include: (1) Evaluation of the stratigraphic relationships between the units that contain tritium in ground water that originates from Pit 7 and the Building 850 area in the vicinity of Doall Ravine; (2) The correlation of these units across the Elk Ravine Fault Zone; and (3) The correlation of these units between the Building 865, Pit 1, Pit 2, and Building 812 areas. These issues were raised by regulators at the Regional Water Quality Control Board in the review of the Pit 7 RI/FS (Taffet and others, 2005). The results of this investigation will assist Lawrence Livermore National Laboratory (LLNL) hydrogeologists to conduct work in a more focused and cost-effective manner. This document is submitted to fulfill contract obligations for subcontract B539658.
Date: May 10, 2006
Creator: Ehman, K D
Object Type: Report
System: The UNT Digital Library
Extending the 2001, 2003, and 2004 Tax Cuts (open access)

Extending the 2001, 2003, and 2004 Tax Cuts

The Economic Growth and Tax Relief Reconciliation Act of 2001 reduced marginal tax rates, provided marriage tax penalty relief, provided temporary relief from the alternative minimum tax, and increased the child tax credit. Congress approved similar tax measures in 2003 and 2004, but all are set to expire after 2010.
Date: May 10, 2006
Creator: Esewein, Gregg A.
Object Type: Report
System: The UNT Digital Library
Mannford Eagle (Mannford, Okla.), Vol. 25, No. 3, Ed. 1 Wednesday, May 10, 2006 (open access)

Mannford Eagle (Mannford, Okla.), Vol. 25, No. 3, Ed. 1 Wednesday, May 10, 2006

Weekly newspaper from Mannford, Oklahoma that includes local, state, and national news along with advertising.
Date: May 10, 2006
Creator: Farley, Tim
Object Type: Newspaper
System: The Gateway to Oklahoma History
Digital Surveillance: The Communications Assistance for Law Enforcement Act (open access)

Digital Surveillance: The Communications Assistance for Law Enforcement Act

The Communications Assistance for Law Enforcement Act (CALEA, P.L. 103- 414, 47 USC 1001-1010), enacted October 25, 1994, is intended to preserve the ability of law enforcement officials to conduct electronic surveillance effectively and efficiently despite the deployment of new digital technologies and wireless services that have altered the character of electronic surveillance. CALEA requires telecommunications carriers to modify their equipment, facilities, and services, wherever reasonably achievable, to ensure that they are able to comply with authorized electronic surveillance actions.
Date: May 10, 2006
Creator: Figliola, Patricia Moloney
Object Type: Report
System: The UNT Digital Library
[Literary and Media Stars] (open access)

[Literary and Media Stars]

Article about Michelle Valles' charitable contributions and her work as a reporter in El Paso and Austin, Texas.
Date: May 10, 2006
Creator: Holloway, Diane
Object Type: Article
System: The UNT Digital Library
Literary and Media Stars: People who wrote the book on the literary and media scenes (open access)

Literary and Media Stars: People who wrote the book on the literary and media scenes

Article about Michelle Valles' charitable contributions and her work as a reporter in El Paso and Austin, Texas.
Date: May 10, 2006
Creator: Holloway, Diane
Object Type: Article
System: The UNT Digital Library
Systematic Evaluation of Jc Decrease in Thick Film Coated Conductors (open access)

Systematic Evaluation of Jc Decrease in Thick Film Coated Conductors

Address both thickness dependence of Jc, in thick film YBCO coated conductors through an application of a suite of new measurement techniques to thick film wire samples produced by commercially viable coated conductor technologies.
Date: May 10, 2006
Creator: Ignatiev, Alex & Goyal, Dr. Amit
Object Type: Report
System: The UNT Digital Library
AIDS: The Ryan White CARE Act (open access)

AIDS: The Ryan White CARE Act

This report discusses the Ryan White Comprehensive AIDS Resources Emergency (CARE) Act, which makes federal funds available to metropolitan areas and states to assist in health care costs and support services for individuals and families affected by the human immunodeficiency virus (HIV) or acquired immune deficiency syndrome (AIDS). This report discusses related legislation and appropriations.
Date: May 10, 2006
Creator: Johnson, Judith A. & Morgan, Paulette C.
Object Type: Report
System: The UNT Digital Library
Civilian Radioactive Waste Management System Requirements Document (open access)

Civilian Radioactive Waste Management System Requirements Document

The CRD addresses the requirements of Department of Energy (DOE) Order 413.3-Change 1, ''Program and Project Management for the Acquisition of Capital Assets'', by providing the Secretarial Acquisition Executive (Level 0) scope baseline and the Program-level (Level 1) technical baseline. The Secretarial Acquisition Executive approves the Office of Civilian Radioactive Waste Management's (OCRWM) critical decisions and changes against the Level 0 baseline; and in turn, the OCRWM Director approves all changes against the Level 1 baseline. This baseline establishes the top-level technical scope of the CRMWS and its three system elements, as described in section 1.3.2. The organizations responsible for design, development, and operation of system elements described in this document must therefore prepare subordinate project-level documents that are consistent with the CRD. Changes to requirements will be managed in accordance with established change and configuration control procedures. The CRD establishes requirements for the design, development, and operation of the CRWMS. It specifically addresses the top-level governing laws and regulations (e.g., ''Nuclear Waste Policy Act'' (NWPA), 10 Code of Federal Regulations (CFR) Part 63, 10 CFR Part 71, etc.) along with specific policy, performance requirements, interface requirements, and system architecture. The CRD shall be used as a vehicle to incorporate …
Date: May 10, 2006
Creator: Kouts, C.A.
Object Type: Report
System: The UNT Digital Library
Homeland Security Department: FY2007 Appropriations (open access)

Homeland Security Department: FY2007 Appropriations

This report is a guide to one of the regular appropriations bills that Congress considers each year. It is designed to supplement the information provided by the House and Senate Appropriations Subcommittees on Homeland Security. It summarizes the status of the bill, its scope, major issues, funding levels, and related congressional activity, and is updated as events warrant.
Date: May 10, 2006
Creator: Lake, Jennifer E. & Nuñez-Neto, Blas
Object Type: Report
System: The UNT Digital Library
Spray Rolling Aluminum Strip (open access)

Spray Rolling Aluminum Strip

Spray forming is a competitive low-cost alternative to ingot metallurgy for manufacturing ferrous and non-ferrous alloy shapes. It produces materials with a reduced number of processing steps, while maintaining materials properties, with the possibility of near-net-shape manufacturing. However, there are several hurdles to large-scale commercial adoption of spray forming: 1) ensuring strip is consistently flat, 2) eliminating porosity, particularly at the deposit/substrate interface, and 3) improving material yield. Through this program, a new strip/sheet casting process, termed spray rolling, has been developed, which is an innovative manufacturing technique to produce aluminum net-shape products. Spray rolling combines the benefits of twin-roll casting and conventional spray forming, showing a promising potential to overcome the above hurdles associated with spray forming. Spray rolling requires less energy and generates less scrap than conventional processes and, consequently, enables the development of materials with lower environmental impacts in both processing and final products. Spray Rolling was developed as a collaborative project between the University of California-Davis, the Colorado School of Mines, the Idaho National Engineering and Environmental Laboratory, and an industry team. The following objectives of this project were achieved: (1) Demonstration of the feasibility of the spray rolling process at the bench-scale level and evaluation …
Date: May 10, 2006
Creator: Lavernia, E.J.; Delplanque, J-P & McHugh, K.M.
Object Type: Report
System: The UNT Digital Library