Degree Department

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Doctoral Recital: 2009-04-19 - Sarah Abigail Griffiths, soprano

Recital presented at the UNT College of Music Concert Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date: April 19, 2009
Creator: Griffiths, Sarah Abigail
Object Type: Sound
System: The UNT Digital Library

Ensemble: 2009-04-14 – A Cappella Choir

Access: Use of this item is restricted to the UNT Community
Choir concert performed at the UNT College of Music Winspear Hall.
Date: April 14, 2009
Creator: University of North Texas. A Cappella Choir.
Object Type: Sound
System: The UNT Digital Library

Doctoral Recital: 2009-04-13 - Sang Hee Park, soprano

Recital presented at the UNT College of Music Concert Hall in partial fulfillment of the Doctor of Musical Arts (DMA) degree.
Date: April 13, 2009
Creator: Park, Sang Hee
Object Type: Sound
System: The UNT Digital Library
Impact of drought on U.S. steam electric power plant cooling water intakes and related water resource management issues. (open access)

Impact of drought on U.S. steam electric power plant cooling water intakes and related water resource management issues.

This report was funded by the U.S. Department of Energy's (DOE's) National Energy Technology Laboratory (NETL) Existing Plants Research Program, which has an energy-water research effort that focuses on water use at power plants. This study complements their overall research effort by evaluating water availability at power plants under drought conditions. While there are a number of competing demands on water uses, particularly during drought conditions, this report focuses solely on impacts to the U.S. steam electric power plant fleet. Included are both fossil-fuel and nuclear power plants. One plant examined also uses biomass as a fuel. The purpose of this project is to estimate the impact on generation capacity of a drop in water level at U.S. steam electric power plants due to climatic or other conditions. While, as indicated above, the temperature of the water can impact decisions to halt or curtail power plant operations, this report specifically examines impacts as a result of a drop in water levels below power plant submerged cooling water intakes. Impacts due to the combined effects of excessive temperatures of the returned cooling water and elevated temperatures of receiving waters (due to high ambient temperatures associated with drought) may be examined in …
Date: April 3, 2009
Creator: Kimmell, T. A.; Veil, J. A. & Division, Environmental Science
Object Type: Report
System: The UNT Digital Library
Final report: results of the 2007 targeted investigation at Hilton, Kansas. (open access)

Final report: results of the 2007 targeted investigation at Hilton, Kansas.

The Commodity Credit Corporation (CCC), an agency of the U.S. Department of Agriculture (USDA), operated a grain storage facility in Hilton, Kansas, in 1954-1965. In 1992, carbon tetrachloride was first identified, at a concentration of 910 {micro}g/L, in groundwater from well GW01 at Hilton. This discovery occurred in association with the sale of the private grain storage facility on which well GW01 is located to the current owner, the Mid-Kansas Cooperative Association. The Kansas Department of Health and Environment conducted investigations at Hilton in 1992-1994. In 1996-1997, Argonne National Laboratory conducted Phase I and Phase II investigations on behalf of the CCC/USDA to characterize the distribution of the carbon tetrachloride contamination identified in well GW01, the stratigraphic units potentially hosting contaminant migration, and local hydrogeology in the Hilton area. The 2007 targeted investigation reported here focused specifically on the former CCC/USDA property at Hilton, west of the railroad tracks. (Until a property record search in 2005, the location of the CCC/USDA's former facility at Hilton was not known with certainty.) The objectives of the investigation, as implemented, were to (1) investigate for carbon tetrachloride contamination in the shallower soil and shallow aquifer units below the former CCC/USDA property and (2) …
Date: April 29, 2008
Creator: LaFreniere, L. M.
Object Type: Report
System: The UNT Digital Library

Senior Recital: 2008-04-11 - Ethan Hayden, composer

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 Bachelor of Music (BM) degree.
Date: April 11, 2008
Creator: Hayden, Ethan
Object Type: Sound
System: The UNT Digital Library

Ensemble: 2008-04-05 – African Cultural Festival

Access: Use of this item is restricted to the UNT Community
Concert presented at the UNT College of Music Concert Hall.
Date: April 5, 2008
Creator: Afrikania Cultural Troupe of Ghana, West Africa
Object Type: Sound
System: The UNT Digital Library

Ensemble: 2008-04-02 – Advanced Afro-Cuban Ensemble, Brazilian Ensemble, and Latin Jazz Ensemble

Access: Use of this item is restricted to the UNT Community
Concert presented at the UNT College of Music Concert Hall.
Date: April 2, 2008
Creator: University of North Texas. Advanced Afro-Cuban Ensemble.
Object Type: Sound
System: The UNT Digital Library
Summary of operations and performance of the Utica aquifer and North Lake Basin Wetlands restoration project in December 2006-November 2007. (open access)

Summary of operations and performance of the Utica aquifer and North Lake Basin Wetlands restoration project in December 2006-November 2007.

This document summarizes the performance of the groundwater restoration systems installed by the Commodity Credit Corporation of the U.S. Department of Agriculture (CCC/USDA) at the former CCC/USDA grain storage facility in Utica, Nebraska, during the third year of system operation, from December 1, 2006, until November 30, 2007. In the project at Utica, the CCC/USDA is cooperating with multiple state and federal agencies to remove carbon tetrachloride contamination from a shallow aquifer underlying the town and to provide supplemental treated groundwater for use in the restoration of a nearby wetlands area. Argonne National Laboratory has assisted the CCC/USDA by providing technical oversight for the aquifer restoration effort and facilities during this review period. This document presents overviews of the aquifer restoration facilities (Section 2) and system operations (Section 3), then describes groundwater production results (Section 4); groundwater treatment results (Section 5); and associated groundwater monitoring, system modifications, and costs during the review period (Section 6). Section 7 summarizes the present year of operation and provides some comparisons with system performance in previous years. The performance of the groundwater restoration systems at Utica in earlier years was summarized in greater detail previously (Argonne 2005, 2006).
Date: April 2, 2008
Creator: LaFreniere, L. M.
Object Type: Report
System: The UNT Digital Library

Ensemble: 2007-04-26 – Global Rhythms

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Ensemble concert performed at the UNT College of Music Concert Hall.
Date: April 26, 2007
Creator: University of North Texas. Bwana Kumala Gamelan Ensemble.
Object Type: Sound
System: The UNT Digital Library
The Market Viability of Nuclear Hydrogen Technologies. (open access)

The Market Viability of Nuclear Hydrogen Technologies.

The Department of Energy Office of Nuclear Energy is supporting system studies to gain a better understanding of nuclear power's potential role in a hydrogen economy and what hydrogen production technologies show the most promise. This assessment includes identifying commercial hydrogen applications and their requirements, comparing the characteristics of nuclear hydrogen systems to those market requirements, evaluating nuclear hydrogen configuration options within a given market, and identifying the key drivers and thresholds for market viability of nuclear hydrogen options. One of the objectives of the current analysis phase is to determine how nuclear hydrogen technologies could evolve under a number of different futures. The outputs of our work will eventually be used in a larger hydrogen infrastructure and market analysis conducted for DOE-EE using a system-level market simulation tool now underway. This report expands on our previous work by moving beyond simple levelized cost calculations and looking at profitability, risk, and uncertainty from an investor's perspective. We analyze a number of technologies and quantify the value of certain technology and operating characteristics. Our model to assess the profitability of the above technologies is based on Real Options Theory and calculates the discounted profits from investing in each of the production …
Date: April 6, 2007
Creator: Botterud, A.; Conzelmann, G.; Petri, M. C. & Yildiz, B.
Object Type: Report
System: The UNT Digital Library
Streamlined Approach for Environmental Restoration (SAFER) Plan for Corrective Action Unit 124: Storage Tanks, Nevada Test Site, Nevada (Draft), Revision 0 (open access)

Streamlined Approach for Environmental Restoration (SAFER) Plan for Corrective Action Unit 124: Storage Tanks, Nevada Test Site, Nevada (Draft), Revision 0

This Streamlined Approach for Environmental Restoration (SAFER) Plan addresses closure for Corrective Action Unit (CAU) 124, Areas 8, 15, and 16 Storage Tanks, identified in the Federal Facility Agreement and Consent Order. Corrective Action Unit 124 consists of five Corrective Action Sites (CASs) located in Areas 8, 15, and 16 of the Nevada Test Site as follows: • 08-02-01, Underground Storage Tank • 15-02-01, Irrigation Piping • 16-02-03, Underground Storage Tank • 16-02-04, Fuel Oil Piping • 16-99-04, Fuel Line (Buried) and UST This plan provides the methodology of field activities necessary to gather information to close each CAS. There is sufficient information and process knowledge from historical documentation and investigations of similar sites regarding the expected nature and extent of potential contaminants to recommend closure of CAU 124 using the SAFER process.
Date: April 1, 2007
Creator: Wickline, Alfred
Object Type: Report
System: The UNT Digital Library
Surveillance of Site A and Plot M - Report for 2005. (open access)

Surveillance of Site A and Plot M - Report for 2005.

The results of the environmental surveillance program conducted at Site A/Plot M in the Palos Forest Preserve area for Calendar Year 2005 are presented. Based on the results of the 1976-1978 radiological characterization of the site, a determination was made that a surveillance program be established. The characterization study determined that very low levels of hydrogen-3 (as tritiated water) had migrated from the burial ground and were present in two nearby handpumped picnic wells. The current surveillance program began in 1980 and consists of sample collection and analysis of surface and subsurface water. The results of the analyses are used to (1) monitor the migration pathway of water from the burial ground (Plot M) to the handpumped picnic wells, (2) establish if buried radionuclides other than hydrogen-3 have migrated, and (3) monitor the presence of radioactive and chemically hazardous materials in the environment of the area. Hydrogen-3 in the Red Gate Woods picnic wells was still detected this year, but the average and maximum concentrations were significantly less than found earlier. Hydrogen-3 continues to be detected in a number of wells, boreholes, dolomite holes, and a surface stream. Analyses since 1984 have indicated the presence of low levels of strontium-90 …
Date: April 10, 2006
Creator: Golchert, N. W. & Oversight, ESH /QA
Object Type: Report
System: The UNT Digital Library
Liquid salt - very high temperature reactor : survey of sodium-cooled fast reactor fuel handling systems for relevant design and operating characteristics. (open access)

Liquid salt - very high temperature reactor : survey of sodium-cooled fast reactor fuel handling systems for relevant design and operating characteristics.

None
Date: April 7, 2006
Creator: Cahalan, J. E. & Taiwo, T. A.
Object Type: Report
System: The UNT Digital Library
Physics Division annual report 2004. (open access)

Physics Division annual report 2004.

This report highlights the research performed in 2004 in the Physics Division of Argonne National Laboratory. The Division's programs include operation of ATLAS as a national user facility, nuclear structure and reaction research, nuclear theory, medium energy nuclear research and accelerator research and development. The intellectual challenges of this research represent some of the most fundamental challenges in modern science, shaping our understanding of both tiny objects at the center of the atom and some of the largest structures in the universe. A great strength of these efforts is the critical interplay of theory and experiment. Notable results in research at ATLAS include a measurement of the charge radius of He-6 in an atom trap and its explanation in ab-initio calculations of nuclear structure. Precise mass measurements on critical waiting point nuclei in the rapid-proton-capture process set the time scale for this important path in nucleosynthesis. An abrupt fall-off was identified in the subbarrier fusion of several heavy-ion systems. ATLAS operated for 5559 hours of research in FY2004 while achieving 96% efficiency of beam delivery for experiments. In Medium Energy Physics, substantial progress was made on a long-term experiment to search for the violation of time-reversal invariance using trapped Ra …
Date: April 6, 2006
Creator: Glover, J.
Object Type: Report
System: The UNT Digital Library
Transmission electron microscopy analysis of corroded metal waste forms. (open access)

Transmission electron microscopy analysis of corroded metal waste forms.

This report documents the results of analyses with transmission electron microscopy (TEM) combined with energy dispersive X-ray spectroscopy (EDS) and selected area electron diffraction (ED) of samples of metallic waste form (MWF) materials that had been subjected to various corrosion tests. The objective of the TEM analyses was to characterize the composition and microstructure of surface alteration products which, when combined with other test results, can be used to determine the matrix corrosion mechanism. The examination of test samples generated over several years has resulted in refinements to the TEM sample preparation methods developed to preserve the orientation of surface alteration layers and the underlying base metal. The preservation of microstructural spatial relationships provides valuable insight for determining the matrix corrosion mechanism and for developing models to calculate radionuclide release in repository performance models. The TEM results presented in this report show that oxide layers are formed over the exposed steel and intermetallic phases of the MWF during corrosion in aqueous solutions and humid air at elevated temperatures. An amorphous non-stoichiometric ZrO{sub 2} layer forms at the exposed surfaces of the intermetallic phases, and several nonstoichiometric Fe-O layers form over the steel phases in the MWF. These oxide layers adhere …
Date: April 15, 2005
Creator: Dietz, N. L.
Object Type: Report
System: The UNT Digital Library

Ensemble: 2003-04-18 – Canticum Novum

Access: Use of this item is restricted to the UNT Community
Ensemble concert presented at the UNT College of Music Recital Hall.
Date: April 18, 2003
Creator: University of North Texas. Canticum Novum.
Object Type: Sound
System: The UNT Digital Library

Ensemble: 2003-04-04 – Wind Symphony and Grand Chorus

Access: Use of this item is restricted to the UNT Community
Concert presented at Winspear Hall at the Murchison Performing Art Center.
Date: April 4, 2003
Creator: North Texas Wind Symphony
Object Type: Sound
System: The UNT Digital Library

Ensemble: 2003-04-03 – Wind Symphony and Grand Chorus

Access: Use of this item is restricted to the UNT Community
Concert presented at Winspear Hall at the Murchison Performing Art Center.
Date: April 3, 2003
Creator: North Texas Wind Symphony
Object Type: Sound
System: The UNT Digital Library

Ensemble: 2001-04-21 - African Cultural Festival

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Ensemble performance at the UNT College of Music Winspear Hall.
Date: April 21, 2001
Creator: African Cultural Festival
Object Type: Sound
System: The UNT Digital Library

Ensemble: 2001-04-12 - Music of the Americas: The Zapotlán Project

Access: Use of this item is restricted to the UNT Community
Ensemble performance at the UNT College of Music Winspear Hall.
Date: April 12, 2001
Creator: Ryan High School Chamber Choir
Object Type: Sound
System: The UNT Digital Library

Ensemble: 2000-04-22 - African Percussion Ensemble

An African percussion concert performed at the UNT College of Music WInspear Hall.
Date: April 22, 2000
Creator: African Percussion Ensemble
Object Type: Sound
System: The UNT Digital Library