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Doctoral Recital: 2010-04-28 - I-Fang Chiang, organ

Recital presented at the UNT College of Music Main Auditorium in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date: April 28, 2010
Creator: Chiang, I-Fang
Object Type: Sound
System: The UNT Digital Library

Doctoral Recital: 2010-10-28 - Kyung Ah Noh, piano

Recital presented at the UNT College of Music Recital Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date: October 28, 2010
Creator: Noh, Kyung Ah
Object Type: Sound
System: The UNT Digital Library
DOD Leases of Foreign-Built Ships: Background for Congress (open access)

DOD Leases of Foreign-Built Ships: Background for Congress

The Department of Defense (DOD) in recent years has leased some foreign-built cargo ships for total periods, including options and renewals, of almost 10 years -- a length of time that some observers argue effectively circumvents a legal requirement that U.S. military ships be built in U.S. shipyards. These observers, particularly the American Shipbuilding Association (ASA), have proposed reducing the current five-year legal limit on ship leases to two years for foreign-built ships. DOD has opposed the idea, arguing that its ship leases are the most cost-effective way to meet its needs for the ships in question. This report briefly discusses this issue, as well as related legislation.
Date: September 28, 2010
Creator: O'Rourke, Ronald
Object Type: Report
System: The UNT Digital Library
DOD Leases of Foreign-Built Ships: Background for Congress (open access)

DOD Leases of Foreign-Built Ships: Background for Congress

This report briefly discusses the Department of Defense leases of foreign-built ships, the opponents of this practice, and related legislation.
Date: May 28, 2010
Creator: O'Rourke, Ronald
Object Type: Report
System: The UNT Digital Library
DOE ER63951-3 Final Report: An Integrated Assessment of Geochemical and Community Structure Determinants of Metal Reduction Rates in Subsurface Sediments (open access)

DOE ER63951-3 Final Report: An Integrated Assessment of Geochemical and Community Structure Determinants of Metal Reduction Rates in Subsurface Sediments

The objective of this research was to examine the importance of microbial community structure in influencing uranium reduction rates in subsurface sediments. If the redox state alone is the key to metal reduction, then any organisms that can utilize the oxygen and nitrate in the subsurface can change the geochemical conditions so metal reduction becomes an energetically favored reaction. Thus, community structure would not be critical in determining rates or extent of metal reduction unless community structure influenced the rate of change in redox. Alternatively, some microbes may directly catalyze metal reduction (e.g., specifically reduce U). In this case the composition of the community may be more important and specific types of electron donors may promote the production of communities that are more adept at U reduction. Our results helped determine if the type of electron donor or the preexisting community is important in the bioremediation of metal-contaminated environments subjected to biostimulation. In a series of experiments at the DOE FRC site in Oak Ridge we have consistently shown that all substrates promoted nitrate reduction, while glucose, ethanol, and acetate always promoted U reduction. Methanol only occasionally promoted extensive U reduction which is possibly due to community heterogeneity. There appeared …
Date: June 28, 2010
Creator: Pfiffner, Susan
Object Type: Report
System: The UNT Digital Library
The Dublin Citizen (Dublin, Tex.), Vol. 20, No. 22, Ed. 1 Thursday, January 28, 2010 (open access)

The Dublin Citizen (Dublin, Tex.), Vol. 20, No. 22, Ed. 1 Thursday, January 28, 2010

Weekly newspaper from Dublin, Texas that includes local, state, and national news along with advertising.
Date: January 28, 2010
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Dublin Citizen (Dublin, Tex.), Vol. 21, No. 9, Ed. 1 Thursday, October 28, 2010 (open access)

The Dublin Citizen (Dublin, Tex.), Vol. 21, No. 9, Ed. 1 Thursday, October 28, 2010

Weekly newspaper from Dublin, Texas that includes local, state, and national news along with advertising.
Date: October 28, 2010
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
EFFECT OF FUEL IMPURITIES ON FUEL CELL PERFORMANCE AND DURABILITY (open access)

EFFECT OF FUEL IMPURITIES ON FUEL CELL PERFORMANCE AND DURABILITY

A fuel cell is an electrochemical energy conversion device that produces electricity during the combination of hydrogen and oxygen to produce water. Proton exchange membranes fuel cells are favored for portable applications as well as stationary ones due to their high power density, low operating temperature, and low corrosion of components. In real life operation, the use of pure fuel and oxidant gases results in an impractical system. A more realistic and cost efficient approach is the use of air as an oxidant gas and hydrogen from hydrogen carriers (i.e., ammonia, hydrocarbons, hydrides). However, trace impurities arising from different hydrogen sources and production increases the degradation of the fuel cell. These impurities include carbon monoxide, ammonia, sulfur, hydrocarbons, and halogen compounds. The International Organization for Standardization (ISO) has set maximum limits for trace impurities in the hydrogen stream; however fuel cell data is needed to validate the assumption that at those levels the impurities will cause no degradation. This report summarizes the effect of selected contaminants tested at SRNL at ISO levels. Runs at ISO proposed concentration levels show that model hydrocarbon compound such as tetrahydrofuran can cause serious degradation. However, the degradation is only temporary as when the impurity …
Date: September 28, 2010
Creator: Colon-Mercado, H.
Object Type: Report
System: The UNT Digital Library
Effect of laser pulse shape on damage susceptibility in optical materials (open access)

Effect of laser pulse shape on damage susceptibility in optical materials

None
Date: January 28, 2010
Creator: Carr, C W; Cross, D A & DeMange, P
Object Type: Article
System: The UNT Digital Library
Effects of Quartz Particle Size and Sucrose Addition on Melting Behavior of a Melter Feed for High-Level Glass (open access)

Effects of Quartz Particle Size and Sucrose Addition on Melting Behavior of a Melter Feed for High-Level Glass

The behavior of melter feed (a mixture of nuclear waste and glass-forming additives) during waste-glass processing has a significant impact on the rate of the vitrification process. We studied the effects of silica particle size and sucrose addition on the volumetric expansion (foaming) of a high-alumina feed and the rate of dissolution of silica particles in feed samples heated at 5 C/min up to 1200 C. The initial size of quartz particles in feed ranged from 5 to 195 {micro}m. The fraction of the sucrose added ranged from 0 to 0.20 g per g glass. Extensive foaming occurred only in feeds with 5-{micro}m quartz particles; particles {ge}150 {micro}m formed clusters. Particles of 5 {micro}m completely dissolved by 900 C whereas particles {ge}150 {micro}m did not fully dissolve even when the temperature reached 1200 C. Sucrose addition had virtually zero impact on both foaming and the dissolution of silica particles. Over 100 sites in the United States are currently tasked with the storage of nuclear waste. The largest is the Hanford Site located in southeastern Washington State with 177 subterranean tanks containing over fifty-million gallons of nuclear waste from plutonium production from 1944 through 1987. This waste will be vitrified at …
Date: July 28, 2010
Creator: Marcial, J.; Kruger, A. A.; Hrma, P. R.; Schweiger, M. J.; Swearingen, K. J.; We, Tegrotenhuis, W. E. et al.
Object Type: Article
System: The UNT Digital Library
Effects of Slip Planes on Stresses in MICE Coupling Solenoid Coil Assembly (open access)

Effects of Slip Planes on Stresses in MICE Coupling Solenoid Coil Assembly

The MICE superconducting coupling solenoid magnet is made from copper matrix Nb-Ti conductors with inner radius of 750 mm, length of 285 mm and thickness of 110.4 mm at room temperature. The coil is to be wound on a mandrel made of aluminum. The peak magnetic field on the conductor is about 7.3 T when fully charged at 210 A. High magnetic field and large size make the stress inside the coupling coil assembly relatively high during cool down and full energizing. The shear stress between coil winding and aluminum casing may cause premature quench. To avoid quench potential induced by stress, slip planes were designed for the coil assembly. In this paper, FE models with and without slip planes for it have been developed to simulate the stresses during the process including winding, cooling down and charging. The stress distribution in the coil assembly with and without slip planes was investigated. The results show that slip planes with low friction coefficients can improve the stress condition in the coil, especially reduce the shear stress largely so that improve the stability.
Date: June 28, 2010
Creator: Wang, Li; Pan, Heng; Wu, Hong; Guo, XingLong; Cheng, Y. & Green, Michael A
Object Type: Article
System: The UNT Digital Library
Efficient Windows Collaborative: Research Tool Dissemination to Increase Energy Efficient Fenestration Product Penetration (open access)

Efficient Windows Collaborative: Research Tool Dissemination to Increase Energy Efficient Fenestration Product Penetration

The project goals covered both the residential and commercial windows markets and involved a range of audiences such as window manufacturers, builders, homeowners, design professionals, utilities, and public agencies. Essential goals included: (1) Creation of 'Master Toolkits' of information that integrate diverse tools, rating systems, and incentive programs, customized for key audiences such as window manufacturers, design professionals, and utility programs. (2) Delivery of education and outreach programs to multiple audiences through conference presentations, publication of articles for builders and other industry professionals, and targeted dissemination of efficient window curricula to professionals and students. (3) Design and implementation of mechanisms to encourage and track sales of more efficient products through the existing Window Products Database as an incentive for manufacturers to improve products and participate in programs such as NFRC and ENERGY STAR. (4) Development of utility incentive programs to promote more efficient residential and commercial windows. Partnership with regional and local entities on the development of programs and customized information to move the market toward the highest performing products. An overarching project goal was to ensure that different audiences adopt and use the developed information, design and promotion tools and thus increase the market penetration of energy efficient fenestration …
Date: February 28, 2010
Creator: Alliance to Save Energy (U.S.)
Object Type: Report
System: The UNT Digital Library
Electra Star-News (Electra, Tex.), Vol. 103, No. 25, Ed. 1 Thursday, January 28, 2010 (open access)

Electra Star-News (Electra, Tex.), Vol. 103, No. 25, Ed. 1 Thursday, January 28, 2010

Weekly newspaper from Electra, Texas that includes local, state, and national news along with advertising.
Date: January 28, 2010
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Electra Star-News (Electra, Tex.), Vol. 104, No. 10, Ed. 1 Thursday, October 28, 2010 (open access)

Electra Star-News (Electra, Tex.), Vol. 104, No. 10, Ed. 1 Thursday, October 28, 2010

Weekly newspaper from Electra, Texas that includes local, state, and national news along with advertising.
Date: October 28, 2010
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Electronic Health Records: DOD and VA Interoperability Efforts Are Ongoing; Program Office Needs to Implement Recommended Improvements (open access)

Electronic Health Records: DOD and VA Interoperability Efforts Are Ongoing; Program Office Needs to Implement Recommended Improvements

A letter report issued by the Government Accountability Office with an abstract that begins "The National Defense Authorization Act for Fiscal Year 2008 required the Department of Defense (DOD) and the Department of Veterans Affairs (VA) to accelerate their exchange of health information and to develop capabilities that allow for interoperability (generally, the ability of systems to exchange data) by September 30, 2009. It also required compliance with federal standards and the establishment of a joint interagency program office to function as a single point of accountability for the effort. Further, the act directed GAO to semiannually report on the progress made in achieving these requirements. For this fourth report, GAO determined the extent to which (1) DOD and VA developed and implemented electronic health record systems or capabilities that allowed for full interoperability by September 30, 2009, and (2) the interagency program office established by the act is functioning as a single point of accountability. To do so, GAO analyzed agency documentation on project status and conducted interviews with agency officials."
Date: January 28, 2010
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Electronic structure of fully epitaxial Co2TiSn thin films (open access)

Electronic structure of fully epitaxial Co2TiSn thin films

In this article we report on the properties of thin films of the full Heusler compound Co{sub 2}TiSn prepared by DC magnetron co-sputtering. Fully epitaxial, stoichiometric films were obtained by deposition on MgO (001) substrates at substrate temperatures above 600 C. The films are well ordered in the L2{sub 1} structure, and the Curie temperature exceeds slightly the bulk value. They show a significant, isotropic magnetoresistance and the resistivity becomes strongly anomalous in the paramagnetic state. The films are weakly ferrimagnetic, with nearly 1 {mu}{sub B} on the Co atoms, and a small antiparallel Ti moment, in agreement with theoretical expectations. From comparison of x-ray absorption spectra on the Co L{sub 3,2} edges, including circular and linear magnetic dichroism, with ab initio calculations of the x-ray absorption and circular dichroism spectra we infer that the electronic structure of Co{sub 2}TiSn has essentially non-localized character. Spectral features that have not been explained in detail before, are explained here in terms of the final state band structure.
Date: October 28, 2010
Creator: Meinert, Markus; Schmalhorst, Jan; Wulfmeier, Hendrik; Reiss, Gunter; Arenholz, Elke; Graf, Tanja et al.
Object Type: Article
System: The UNT Digital Library
The Emergency Planning and Community Right-to-Know Act (EPCRA): A Summary (open access)

The Emergency Planning and Community Right-to-Know Act (EPCRA): A Summary

This report summarizes the Emergency Planning and Community Right-to-Know Act (EPCRA) and the major regulatory programs that mandate reporting by industrial facilities of releases of hazardous chemicals to the environment, as well as local planning to respond in the event of significant, accidental releases.
Date: October 28, 2010
Creator: Schierow, Linda-Jo
Object Type: Report
System: The UNT Digital Library
The Endangered Species Act (ESA) in the 111th Congress: Conflicting Values and Difficult Choices (open access)

The Endangered Species Act (ESA) in the 111th Congress: Conflicting Values and Difficult Choices

The Endangered Species Act has been one of the more contentious environmental laws. This may stem from its strict substantive provisions, which can affect the use of both federal and nonfederal lands and resources. This report discusses oversight issues and legislation introduced in the 11th Congress to address Endangered Species Act implementation and management of endangered and threatened species.
Date: June 28, 2010
Creator: Buck, Eugene H.; Corn, M. Lynne; Sheikh, Pervaze A.; Meltz, Robert & Alexander, Kristina
Object Type: Report
System: The UNT Digital Library
The Endangered Species Act (ESA) in the 111th Congress: Conflicting Values and Difficult Choices (open access)

The Endangered Species Act (ESA) in the 111th Congress: Conflicting Values and Difficult Choices

This report discusses oversight issues and legislation introduced in the 111th Congress to address Endangered Species Act (ESA) implementation and management of endangered and threatened species.
Date: September 28, 2010
Creator: Buck, Eugene H.; Corn, M. Lynne; Sheikh, Pervaze A.; Meltz, Robert & Alexander, Kristina
Object Type: Report
System: The UNT Digital Library

Engineering Challenges of Airborne Wind Technology

This presentation addresses the engineering challenges of airborne wind technology.
Date: September 28, 2010
Creator: Felker, F.
Object Type: Presentation
System: The UNT Digital Library

Ensemble: 2010-02-28 – Opera and Symphony Orchestra

Access: Use of this item is restricted to the UNT Community
Recording of the first Sunday afternoon performance of the opera "Prodaná nevěsta (The Bartered Bride)" at the UNT College of Music Lyric Theater.
Date: February 28, 2010, 3:00 p.m.
Creator: University of North Texas. Division of Vocal Studies. Opera.
Object Type: Sound
System: The UNT Digital Library

Ensemble: 2010-04-28 – Concert Orchestra

Orchestra concert presented at the UNT College of Music Winspear Performance Hall.
Date: April 28, 2010
Creator: University of North Texas. Concert Orchestra.
Object Type: Sound
System: The UNT Digital Library

Ensemble: 2010-09-28 – Choralfest! 2010

Access: Use of this item is restricted to the UNT Community
Concert presented at the UNT College of Music Winspear Performance Hall.
Date: September 28, 2010
Creator: University of North Texas. Collegium Singers.
Object Type: Sound
System: The UNT Digital Library

Ensemble: 2010-10-28 – Global Rhythms

Access: Use of this item is restricted to the UNT Community
Percussion ensembles concert presented at the UNT College of Music Voertman Hall and Music Commons.
Date: October 28, 2010
Creator: University of North Texas. Bwana Kumala Gamelan Ensemble.
Object Type: Sound
System: The UNT Digital Library