Language

437 Matching Results

Results open in a new window/tab.

Fuel Cell Research at the University of South Carolina (open access)

Fuel Cell Research at the University of South Carolina

Five projects are proposed, in an effort to supplement the efforts of fuel cell research at the University of South Carolina and to contribute to the Technical Plan for Fuel Cells of the Department of Energy. These efforts include significant interaction with the industrial community through DOE funded projects and through the National Science Foundation’s Industry/University Cooperative Research Center for Fuel Cells. The allocation of projects described below leverage all of these sources of funding without overlap and redundancy. The first project “Novel Non-Precious Metal Catalyst For PEMFCs,” (Dr. Branko Popov) continues DOE award DE-FC36-03GO13108 for which funding was delayed by DOE due to budget constraints. The purpose of this project is to develop an understanding of the feasibility and limitations of metal-free catalysts. The second project, “Non Carbon Supported Catalysts” (Dr. John Weidner), is focused on improved catalysts and seeks to develop novel materials, which are more corrosion resistant. This corrosion behavior is critical during transient operation and during start-up and shutdown. This second project will be leveraged with recent, peer-reviewed, supplemental funding from NSF for use in the National Science Foundation Industry/University Cooperative Research Center for Fuel Cells (CFC) at USC. The third project, “Hydrogen Quality,” (Dr. Jean …
Date: September 25, 2006
Creator: Van Zee, John W.
Object Type: Report
System: The UNT Digital Library
Fuel Cell Research at the University of South Carolina (open access)

Fuel Cell Research at the University of South Carolina

Five projects were conducted in an effort to supplement the efforts of fuel cell research at the University of South Carolina and to contribute to the Technical Plan for Fuel Cells of the Department of Energy. These efforts include significant interaction with the industrial community through DOE funded projects and through the National Science Foundation�s Industry/University Cooperative Research Center (NSF-I/UCRC) for Fuel Cells at USC. The allocation of projects described below leveraged all of these sources of funding without overlap and redundancy. 1. "Novel Non-Precious Metal Catalyst For PEMFCs" (Dr. Branko Popov) 2. "Non Carbon Supported Catalysts" (Dr. John Weidner) 3. "Hydrogen Quality" (Dr. Jean St-Pierre) 4. "Gasket Materials: Mechanical and Chemical Stability in PEMFC" (Dr. Y.J. (Bill) Chao) 5. "Mathematical Modeling of PEM Fuel Cells," (Dr. Sirivatch (Vatch) Shimpalee)
Date: September 25, 2006
Creator: Van Zee, John W.
Object Type: Report
System: The UNT Digital Library
Gasoline Prices: New Legislation and Proposals (open access)

Gasoline Prices: New Legislation and Proposals

This report reviews the major legislative initiatives to deal with the gasoline price issue. To put these proposals in perspective, it first describes some of the factors that have led to the high prices of both crude oil and gasoline.
Date: September 25, 2006
Creator: Behrens, Carl E. & Glover, Carol
Object Type: Report
System: The UNT Digital Library
Geology of the Yucca Mountain Region, Chapter in Stuckless, J.S., ED., Yucca Mountain, Nevada - A Proposed Geologic Repository for High-Level Radioactive Waste (open access)

Geology of the Yucca Mountain Region, Chapter in Stuckless, J.S., ED., Yucca Mountain, Nevada - A Proposed Geologic Repository for High-Level Radioactive Waste

Yucca Mountain has been proposed as the site for the Nation's first geologic repository for high-level radioactive waste. This chapter provides the geologic framework for the Yucca Mountain region. The regional geologic units range in age from late Precambrian through Holocene, and these are described briefly. Yucca Mountain is composed dominantly of pyroclastic units that range in age from 11.4 to 15.2 Ma. The proposed repository would be constructed within the Topopah Spring Tuff, which is the lower of two major zoned and welded ash-flow tuffs within the Paintbrush Group. The two welded tuffs are separated by the partly to nonwelded Pah Canyon Tuff and Yucca Mountain Tuff, which together figure prominently in the hydrology of the unsaturated zone. The Quaternary deposits are primarily alluvial sediments with minor basaltic cinder cones and flows. Both have been studied extensively because of their importance in predicting the long-term performance of the proposed repository. Basaltic volcanism began about 10 Ma and continued as recently as about 80 ka with the eruption of cones and flows at Lathrop Wells, approximately 10 km south-southwest of Yucca Mountain. Geologic structure in the Yucca Mountain region is complex. During the latest Paleozoic and Mesozoic, strong compressional forces …
Date: September 25, 2006
Creator: Stuckless, J.S. & O'Leary, D.
Object Type: Article
System: The UNT Digital Library
Geologyy of the Yucca Mountain Site Area, Southwestern Nevada, Chapter in Stuckless, J.S., ED., Yucca Mountain, Nevada - A Proposed Geologic Repository for High-Level Radioactive Waste (Volume 1) (open access)

Geologyy of the Yucca Mountain Site Area, Southwestern Nevada, Chapter in Stuckless, J.S., ED., Yucca Mountain, Nevada - A Proposed Geologic Repository for High-Level Radioactive Waste (Volume 1)

Yucca Mountain in southwestern Nevada is a prominent, irregularly shaped upland formed by a thick apron of Miocene pyroclastic-flow and fallout tephra deposits, with minor lava flows, that was segmented by through-going, large-displacement normal faults into a series of north-trending, eastwardly tilted structural blocks. The principal volcanic-rock units are the Tiva Canyon and Topopah Spring Tuffs of the Paintbrush Group, which consist of volumetrically large eruptive sequences derived from compositionally distinct magma bodies in the nearby southwestern Nevada volcanic field, and are classic examples of a magmatic zonation characterized by an upper crystal-rich (> 10% crystal fragments) member, a more voluminous lower crystal-poor (< 5% crystal fragments) member, and an intervening thin transition zone. Rocks within the crystal-poor member of the Topopah Spring Tuff, lying some 280 m below the crest of Yucca Mountain, constitute the proposed host rock to be excavated for the storage of high-level radioactive wastes. Separation of the tuffaceous rock formations into subunits that allow for detailed mapping and structural interpretations is based on macroscopic features, most importantly the relative abundance of lithophysae and the degree of welding. The latter feature, varying from nonwelded through partly and moderately welded to densely welded, exerts a strong control …
Date: September 25, 2006
Creator: Keefer, W.R.; Whitney, J.W. & Buesch, D.C.
Object Type: Article
System: The UNT Digital Library
Hanford Soil Inventory Model (SIM) Rev. 1 Software Documentation – Requirements, Design, and Limitations (open access)

Hanford Soil Inventory Model (SIM) Rev. 1 Software Documentation – Requirements, Design, and Limitations

The objective of this document is to support the simulation results reported by Corbin et al. (2005) by documenting the requirements, conceptual model, simulation methodology, testing, and quality assurance associated with the Hanford Soil Inventory Model (SIM). There is no conventional software life-cycle documentation associated with the Hanford SIM because of the research and development nature of the project. Because of the extensive use of commercial- off-the-shelf software products, there was little actual software development as part of this application. This document is meant to provide historical context and technical support of Corbin et al. (2005), which is a significant revision and update to an earlier product Simpson et al. (2001). The SIM application computed waste discharges composed of 75 analytes at 377 waste sites (liquid disposal, unplanned releases, and tank farm leaks) over an operational period of approximately 50 years. The development and application of SIM was an effort to develop a probabilistic approach to estimate comprehensive, mass balanced-based contaminant inventories for the Hanford Site post-closure setting. A computer model capable of calculating inventories and the associated uncertainties as a function of time was identified to address the needs of the Remediation and Closure Science (RCS) Project.
Date: September 25, 2006
Creator: Simpson, Brett C.; Corbin, Rob A.; Anderson, Michael J. & Kincaid, Charles T.
Object Type: Report
System: The UNT Digital Library
Hanford Soil Inventory Model (SIM) Rev. 1 Users Guide (open access)

Hanford Soil Inventory Model (SIM) Rev. 1 Users Guide

The focus of the development and application of a soil inventory model as part of the Remediation and Closure Science (RCS) Project managed by PNNL was to develop a probabilistic approach to estimate comprehensive, mass balanced-based contaminant inventories for the Hanford Site post-closure setting. The outcome of this effort was the Hanford Soil Inventory Model (SIM). This document is a user's guide for the Hanford SIM. The principal project requirement for the SIM was to provide comprehensive quantitative estimates of contaminant inventory and its uncertainty for the various liquid waste sites, unplanned releases, and past tank farm leaks as a function of time and location at Hanford. The majority, but not all of these waste sites are in the 200 Areas of Hanford where chemical processing of spent fuel occurred. A computer model capable of performing these calculations and providing satisfactory quantitative output representing a robust description of contaminant inventory and uncertainty for use in other subsequent models was determined to be satisfactory to address the needs of the RCS Project. The ability to use familiar, commercially available software on high-performance personal computers for data input, modeling, and analysis, rather than custom software on a workstation or mainframe computer for …
Date: September 25, 2006
Creator: Simpson, Brett C.; Corbin, Rob A.; Anderson, Michael J. & Kincaid, Charles T.
Object Type: Report
System: The UNT Digital Library
The Impact of Injection on Seismicity at The Geyses, CaliforniaGeothermal Field (open access)

The Impact of Injection on Seismicity at The Geyses, CaliforniaGeothermal Field

Water injection into geothermal systems has often become arequired strategy to extended and sustain production of geothermalresources. To reduce a trend of declining pressures and increasingnon-condensable gas concentrations in steam produced from The Geysers,operators have been injecting steam condensate, local rain and streamwaters, and most recently treated wastewater piped to the field fromneighboring communities. If geothermal energy is to provide a significantincrease in energy in the United States (US Department of Energy (DOE)goal is 40,000 megawatts by 2040), injection must play a larger role inthe overall strategy, i.e., enhanced geothermal systems, (EGS). Presentedin this paper are the results of monitoring microseismicity during anincrease in injection at The Geysers field in California using data froma high-density digital microearthquake array. Although seismicity hasincreased due to increased injection it has been found to be somewhatpredicable, thus implying that intelligent injection control may be ableto control large increases in seismicity.
Date: September 25, 2006
Creator: Majer, Ernest L. & Peterson, John E.
Object Type: Article
System: The UNT Digital Library
Improvised Explosive Devices (IEDs) in Iraq and Afghanistan: Effects and Countermeasures (open access)

Improvised Explosive Devices (IEDs) in Iraq and Afghanistan: Effects and Countermeasures

Since October 2001, Improvised Explosive Devices (IEDs, or roadside bombs) have been responsible for many of the more than 2,000 combat deaths in Iraq, and 178 combat deaths in Afghanistan. IEDs are hidden behind signs and guardrails, under roadside debris, or inside animal carcasses, and encounters with these bombs are becoming more numerous and deadly in both Iraq and Afghanistan. Department of Defense (DOD) efforts to counter IEDs have proven only marginally effective, and U.S. forces continue to be exposed to the threat at military checkpoints, or whenever on patrol. IEDs are increasingly being used in Afghanistan, and DOD reportedly is concerned that they might eventually be more widely used by other insurgents and terrorists worldwide.
Date: September 25, 2006
Creator: Wilson, Clay
Object Type: Report
System: The UNT Digital Library
Improvised Explosive Devices (IEDs) in Iraq and Afghanistan: Effects and Countermeasures (open access)

Improvised Explosive Devices (IEDs) in Iraq and Afghanistan: Effects and Countermeasures

This report discusses Improvised Explosive Devices (IEDs, or roadside bombs) in Iraq and Afghanistan. IEDs have been responsible for many of the more than 2,000 combat deaths in Iraq, and 178 combat deaths in Afghanistan. IEDs are hidden behind signs and guardrails, under roadside debris, or inside animal carcasses, and encounters with these bombs are becoming more numerous and deadly in both Iraq and Afghanistan. The threat includes vehicle-borne IEDs, in which extremists drive cars laden with explosives directly into a target. DOD efforts to counter IEDs have proven only marginally effective, and U.S. forces continue to be exposed to the threat at military checkpoints, or whenever on patrol. IEDs are increasingly being used in Afghanistan, and DOD reportedly is concerned that they might eventually be more widely used by other insurgents and terrorists worldwide.
Date: September 25, 2006
Creator: Wilson, Clay
Object Type: Report
System: The UNT Digital Library
Initial Science Plan of the Monsoon Asia Integrated Regional Study (open access)

Initial Science Plan of the Monsoon Asia Integrated Regional Study

This Initial Science Plan identifies key environmental changes that affect the people and societies of the regions of Asia affected by monsoons. The plan pinpoints people and environments which are most vulnerable to monsoon damage. The plan ends with a reflection on important scientific issues and lists a number of future actions for the Monsoon Asia Integrated Regional Study.
Date: September 25, 2006
Creator: Fu, Congbin & De Vries, Fritz Penning
Object Type: Text
System: The UNT Digital Library
Intelligence Spending: Public Disclosure Issues (open access)

Intelligence Spending: Public Disclosure Issues

None
Date: September 25, 2006
Creator: Best, Richard A., Jr. & Bazan, Elizabeth B.
Object Type: Report
System: The UNT Digital Library
Interrogation of Detainees: Overview of the McCain Amendment (open access)

Interrogation of Detainees: Overview of the McCain Amendment

Controversy has arisen regarding U.S. treatment of enemy combatants and terrorist suspects detained in Iraq, Afghanistan, and other locations, and whether such treatment complies with related U.S. statutes and treaties. Certain provisions of the Detainee Treatment Act (DTA), first introduced by Senator John McCain, have popularly been referred to as the "McCain Amendment." This report discusses the McCain amendment and also discusses the application of the McCain Amendment by the DOD in the updated 2006 version of the Army Field Manual.
Date: September 25, 2006
Creator: Garcia, Michael John
Object Type: Report
System: The UNT Digital Library
Interrogation of Detainees: Overview of the McCain Amendment (open access)

Interrogation of Detainees: Overview of the McCain Amendment

Controversy has arisen regarding U.S. treatment of enemy combatants and terrorist suspects detained in Iraq, Afghanistan, and other locations, and whether such treatment complies with U.S. statutes and treaties such as the U.N. Convention Against Torture and Other Forms of Cruel and Inhuman or Degrading Treatment or Punishment (CAT) and the 1949 Geneva Conventions. Congress approved additional guidelines concerning the treatment of detainees via the Detainee Treatment Act (DTA), which was enacted pursuant to both the Department of Defense, Emergency Supplemental Appropriations to Address Hurricanes in the Gulf of Mexico, and Pandemic Influenza Act, 2006 (P.L. 109-148), and the National Defense Authorization Act for FY2006 (P.L. 109-163). Among other things, the DTA contains provisions that (1) require Department of Defense (DOD) personnel to employ United States Army Field Manual guidelines while interrogating detainees, and (2) prohibit the “cruel, inhuman and degrading treatment or punishment of persons under the detention, custody, or control of the United States Government.” These provisions of the DTA, which were first introduced by Senator John McCain, have popularly been referred to as the “McCain Amendment.” This report discusses the McCain Amendment, as modified and subsequently enacted into law.
Date: September 25, 2006
Creator: Garcia, Michael John
Object Type: Report
System: The UNT Digital Library
Interrogation of Detainees: Overview of the McCain Amendment (open access)

Interrogation of Detainees: Overview of the McCain Amendment

Controversy has arisen regarding U.S. treatment of enemy combatants and terrorist suspects detained in Iraq, Afghanistan, and other locations, and whether such treatment complies with U.S. statutes and treaties such as the U.N. Convention Against Torture and Other Forms of Cruel and Inhuman or Degrading Treatment or Punishment (CAT) and the 1949 Geneva Conventions. Congress approved additional guidelines concerning the treatment of detainees via the Detainee Treatment Act (DTA), which was enacted pursuant to both the Department of Defense, Emergency Supplemental Appropriations to Address Hurricanes in the Gulf of Mexico, and Pandemic Influenza Act, 2006 (P.L. 109-148), and the National Defense Authorization Act for FY2006 (P.L. 109-163). Among other things, the DTA contains provisions that (1) require Department of Defense (DOD) personnel to employ United States Army Field Manual guidelines while interrogating detainees, and (2) prohibit the “cruel, inhuman and degrading treatment or punishment of persons under the detention, custody, or control of the United States Government.” These provisions of the DTA, which were first introduced by Senator John McCain, have popularly been referred to as the “McCain Amendment.” This report discusses the McCain Amendment, as modified and subsequently enacted into law.
Date: September 25, 2006
Creator: Garcia, Michael John
Object Type: Report
System: The UNT Digital Library
Iraq Contract Costs: DOD Consideration of Defense Contract Audit Agency's Findings (open access)

Iraq Contract Costs: DOD Consideration of Defense Contract Audit Agency's Findings

A letter report issued by the Government Accountability Office with an abstract that begins "The government has hired private contractors to provide billions of dollars worth of goods and services to support U.S. efforts in Iraq. Faced with the uncertainty as to the full extent of rebuilding Iraq, the government authorized contractors to begin work before key terms and conditions were defined. This approach allows the government to initiate needed work quickly, but can result in additional costs and risks being imposed on the government. Helping to oversee their work is the Defense Contract Audit Agency (DCAA), which examined many Iraq contracts and identified costs they consider to be questioned or unsupported. The Conference Report on the National Defense Authorization Act for Fiscal Year 2006 directed GAO to report on audit findings regarding contracts in Iraq and Afghanistan. As agreed with the congressional defense committees, GAO focused on Iraq contract audit findings and determined (1) the costs identified by DCAA as questioned or unsupported; and (2) what actions DOD has taken to address DCAA audit findings, including the extent funds were withheld from contractors. To identify DOD actions in response to the audit findings, GAO selected 18 audit reports representing …
Date: September 25, 2006
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Measurement of the Mass and Width and Study of the Spin of the Xi(1690)0 Resonance from Lambdac+ --> Lambda anti-K0 K+ Decay at BaBar (open access)

Measurement of the Mass and Width and Study of the Spin of the Xi(1690)0 Resonance from Lambdac+ --> Lambda anti-K0 K+ Decay at BaBar

The {Xi}(1690){sup 0} resonance is observed in the {Lambda}{bar K}{sup 0} channel in the decay {Lambda}{sub c}{sup +} {yields} {Lambda}{bar K}{sup 0}K{sup +}, from a data sample corresponding to a total integrated luminosity of {approx} 200 fb{sup -1} recorded by the BABAR detector at the PEP-II asymmetric-energy e+e- collider operating at {approx} 10.58 GeV and {approx} 10.54 GeV center-of-mass energies. A fit to the Dalitz plot intensity distribution corresponding to the coherent superposition of amplitudes describing {Lambda}a{sub 0}(980){sup +} and {Xi}(1690){sup 0} K{sup +} production yields mass and width values of 1684.7 {+-} 1.3(stat.){sub -1.6}{sup +2.2}(syst.) MeV/c{sup 2}, and 8.1{sub -3.5}{sup +3.9}(stat.){sub -0.9}{sup +1.0}(syst.) MeV, respectively, for the {Xi}(1690){sup 0}, while the spin is found to be consistent with value of 1/2 on the basis of studies of the ({Lambda}K{sub S}) angular distribution.
Date: September 25, 2006
Creator: Aubert, B.
Object Type: Article
System: The UNT Digital Library
National Park Management (open access)

National Park Management

None
Date: September 25, 2006
Creator: unknown
Object Type: Report
System: The UNT Digital Library
The Oklahoma Daily (Norman, Okla.), Vol. 91, No. 28, Ed. 1 Monday, September 25, 2006 (open access)

The Oklahoma Daily (Norman, Okla.), Vol. 91, No. 28, Ed. 1 Monday, September 25, 2006

Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date: September 25, 2006
Creator: Savage, William W., III
Object Type: Newspaper
System: The Gateway to Oklahoma History
Oxide Dispersion Strengthened Iron Aluminide by CVD Coated Powders (open access)

Oxide Dispersion Strengthened Iron Aluminide by CVD Coated Powders

This I &I Category2 program developed chemical vapor deposition (CVD) of iron, aluminum and aluminum oxide coated iron powders and the availability of high temperature oxidation, corrosion and erosion resistant coating for future power generation equipment and can be used for retrofitting existing fossil-fired power plant equipment. This coating will provide enhanced life and performance of Coal-Fired Boilers components such as fire side corrosion on the outer diameter (OD) of the water wall and superheater tubing as well as on the inner diameter (ID) and OD of larger diameter headers. The program also developed a manufacturing route for readily available thermal spray powders for iron aluminide coating and fabrication of net shape component by powder metallurgy route using this CVD coated powders. This coating can also be applid on jet engine compressor blade and housing, industrial heat treating furnace fixtures, magnetic electronic parts, heating element, piping and tubing for fossil energy application and automotive application, chemical processing equipment , heat exchanger, and structural member of aircraft. The program also resulted in developing a new fabrication route of thermal spray coating and oxide dispersion strengthened (ODS) iron aluminide composites enabling more precise control over material microstructures.
Date: September 25, 2006
Creator: Biswas, Asit & Sherman, Andrew J.
Object Type: Report
System: The UNT Digital Library
Perry Daily Journal (Perry, Okla.), Vol. 114, No. 191, Ed. 1 Monday, September 25, 2006 (open access)

Perry Daily Journal (Perry, Okla.), Vol. 114, No. 191, Ed. 1 Monday, September 25, 2006

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date: September 25, 2006
Creator: Brown, Gloria
Object Type: Newspaper
System: The Gateway to Oklahoma History
Phase separation in H2O:N2 mixture - molecular dynamics simulations using atomistic force fields (open access)

Phase separation in H2O:N2 mixture - molecular dynamics simulations using atomistic force fields

A class II atomistic force field with Lennard-Jones 6-9 nonbond interactions is used to investigate equations of state (EOS) for important high explosive detonation products N{sub 2} and H{sub 2}O in the temperature range 700-2500 K and pressure range 0.1-10 GPa. A standard 6th order parameter-mixing scheme is then employed to study a 2:1 (molar) H{sub 2}O:N{sub 2} mixture, to investigate in particular the possibility of phase-separation under detonation conditions. The simulations demonstrate several important results, including: (1) the accuracy of computed EOS for both N{sub 2} and H{sub 2}O over the entire range of temperature and pressure considered; (2) accurate mixing-demixing phase boundary as compared to experimental data; and (3) the departure of mixing free energy from that predicted by ideal mixing law. The results provide comparison and guidance to state-of-the-art chemical kinetic models.
Date: September 25, 2006
Creator: Maiti, A; Gee, R; Bastea, S & Fried, L
Object Type: Article
System: The UNT Digital Library
The Promoting Safe and Stable Families Program: Reauthorization in the 109th Congress (open access)

The Promoting Safe and Stable Families Program: Reauthorization in the 109th Congress

None
Date: September 25, 2006
Creator: Stoltzfus, Emilie
Object Type: Report
System: The UNT Digital Library
Remaining Sites Verification Package for the 116-F-8, 1904-F Outfall Structure and the 100-F-42, 1904-F Spillway, Waste Site Reclassification Form 2006-038 (open access)

Remaining Sites Verification Package for the 116-F-8, 1904-F Outfall Structure and the 100-F-42, 1904-F Spillway, Waste Site Reclassification Form 2006-038

The 116-F-8 waste site is the former 1904-F Outfall Structure used to discharge reactor cooling water effluent fro mthe 107-F Retention Basin to the Columbia River. The results of verification sampling show that residual contaminant concentrations do not preclude any future uses and allow for unrestricted use of shallow zone soils. The results also demonstrate that residual contaminant concentrations are protective of groundwater and the Columbia River.
Date: September 25, 2006
Creator: Dittmer, L. M.
Object Type: Report
System: The UNT Digital Library