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21-PWR WASTE PACKAGE WITH ABSORBER PLATES LOADING CURVE EVALUATION
The objective of this calculation is to evaluate the required minimum burnup as a function of initial pressurized water reactor (PWR) assembly enrichment that would permit loading of spent nuclear fuel into the 21 PWR waste package with absorber plates design as provided in Attachment IV. This calculation is an example of the application of the methodology presented in the ''Disposal Criticality Analysis Methodology Topical Report'' (YMP 2003). The scope of this calculation covers a range of enrichments from 0 through 5.0 weight percent U-235, and a burnup range of 0 through 45 GWd/MTU. Higher burnups were not necessary because 45 GWd/MTU was high enough for the loading curve determination. This activity supports the validation of the use of burnup credit for commercial spent nuclear fuel applications. The intended use of these results will be in establishing PWR waste package configuration loading specifications. Limitations of this evaluation are as follows: (1) The results are based on burnup credit for actinides and selected fission products as proposed in YMP (2003, Table 3-1) and referred to as the ''Principal Isotopes''. Any change to the isotope listing will have a direct impact on the results of this report. (2) The results are based …
Date:
December 17, 2004
Creator:
Scaglione, J.M.
Object Type:
Report
System:
The UNT Digital Library
Advanced Vehicle Technologies: Energy, Environment, and Development Issues
This report discusses four major vehicle technologies — electric vehicles, hybrid electric vehicles, plug-in hybrids, and fuel cell vehicles — as well as advanced component technologies. Each technology is discussed in terms of cost, fueling and maintenance infrastructure, and performance.
Date:
December 17, 2004
Creator:
Yacobucci, Brent D.
Object Type:
Report
System:
The UNT Digital Library
Alternative Fuel Vehicle Tax Incentives and the CLEAR ACT
This report addresses Alternative Fuel Vehicle Tax Incentives and the CLEAR ACT.
Date:
December 17, 2004
Creator:
Yacobucci, Brent D.
Object Type:
Report
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 106, No. 216, Ed. 1 Friday, December 17, 2004
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 17, 2004
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
American Samoa: Accountability for Key Federal Grants Needs Improvement
A letter report issued by the Government Accountability Office with an abstract that begins "American Samoa, a U.S. territory, relies on federal funding to support government operations and deliver critical services. The Secretary of the Interior has administrative responsibility for coordinating federal policy in the territory. Under the Single Audit Act of 1996, American Samoa is required to perform a yearly single audit of federal grants and other awards to ensure accountability. To better understand the role of federal funds in American Samoa, GAO (1) examined the uses of 12 key grants in fiscal years 1999-2003, (2) identified local conditions that affected the grants, and (3) assessed accountability for the grants."
Date:
December 17, 2004
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 84, No. 12, Ed. 1 Friday, December 17, 2004
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
December 17, 2004
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
Boerne Star & Hill Country Recorder (Boerne, Tex.), Vol. 98, No. 89, Ed. 1 Friday, December 17, 2004
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
December 17, 2004
Creator:
Watson, Steven G.
Object Type:
Newspaper
System:
The Portal to Texas History
Border and Transportation Security: Overview of Congressional Issues
This report provides a summary of selected border and transportation security (BTS) concepts and issues that may be of interest to the 109th Congress. It is the product of contributions from CRS staff in the table contained later in this report labeled Key Policy Staff: Border and Transportation Security.
Date:
December 17, 2004
Creator:
Lake, Jennifer E.
Object Type:
Report
System:
The UNT Digital Library
“Boutique Fuels” and Reformulated Gasoline: Harmonization of Fuel Standards
This report provides information about the Boutique Fuels and Reformulated Gasoline and its Harmonization of Fuel Standards.
Date:
December 17, 2004
Creator:
Yacobucci, Brent D.
Object Type:
Report
System:
The UNT Digital Library
Brady Standard-Herald and Heart O' Texas News (Brady, Tex.), Ed. 1 Friday, December 17, 2004
Semiweekly newspaper from Brady, Texas that includes local, state, and national news along with advertising.
Date:
December 17, 2004
Creator:
Stewart, James E.
Object Type:
Newspaper
System:
The Portal to Texas History
Campaign Financing
This report discusses various issues regarding campaign finance law and potential options for policy responses.
Date:
December 17, 2004
Creator:
Cantor, Joseph E.
Object Type:
Report
System:
The UNT Digital Library
Child Care Issues in the 108th Congress
This report discusses the federal child care-related programs and tax provisions, FY2003 Appropriations, FY2004: Comparing President Bush's Budget Proposals and Hearings.
Date:
December 17, 2004
Creator:
Gish, Melinda
Object Type:
Report
System:
The UNT Digital Library
The Clifton Record (Clifton, Tex.), Vol. 109, No. 60, Ed. 1 Friday, December 17, 2004
Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
December 17, 2004
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
Congressional Budget Actions in 2003
This report provides information about the Congressional Budget Actions in 2003. During 2003 congress considered various budgetary measures. most measures pertained to 2004 and beyond.
Date:
December 17, 2004
Creator:
Heniff, Bill, Jr.
Object Type:
Report
System:
The UNT Digital Library
Cost-Effective Cementitious Material Compatible with Yucca Mountain Repository Geochemistry
The current plans for the Yucca Mountain (YM) repository project (YMP) use steel structures to stabilize the disposal drifts and connecting tunnels that are collectively over 100 kilometers in length. The potential exist to reduce the underground construction cost by 100s of millions of dollars and improve the repository's performance. These economic and engineering goals can be achieved by using the appropriate cementitious materials to build out these tunnels. This report describes the required properties of YM compatible cements and reviews the literature that proves the efficacy of this approach. This report also describes a comprehensive program to develop and test materials for a suite of underground construction technologies.
Date:
December 17, 2004
Creator:
Dole, LR
Object Type:
Report
System:
The UNT Digital Library
Crystallization of Mitochondrial Respiratory Complex II fromChicken Heart: A Membrane-Protein Complex Diffracting to 2.0Angstrom
Procedure is presented for preparation of diffraction-quality crystals of a vertebrate mitochondrial respiratory Complex II. The crystals have the potential to diffract to at least 2.0 Angstrom with optimization of post-crystal-growth treatment and cryoprotection. This should allow determination of the structure of this important and medically relevant membrane protein complex at near-atomic resolution and provide great detail of the mode of binding of substrates and inhibitors at the two substrate-binding sites.
Date:
December 17, 2004
Creator:
Huang, Li-shar; Borders, Toni M.; Shen, John T.; Wang, Chung-Jen & Berry, Edward A.
Object Type:
Article
System:
The UNT Digital Library
Dallas Voice (Dallas, Tex.), Vol. 21, No. 32, Ed. 1 Friday, December 17, 2004
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:
December 17, 2004
Creator:
Vercher, Dennis
Object Type:
Newspaper
System:
The UNT Digital Library
Defense Transformation: Clear Leadership, Accountability, and Management Tools Are Needed to Enhance DOD's Efforts to Transform Military Capabilities
A letter report issued by the Government Accountability Office with an abstract that begins "Because future threats the nation may face are uncertain, and with many competing demands on its resources, the Department of Defense (DOD) has begun to transform its military capabilities, which will involve not only the acquisition of new weapon systems but also how the armed forces think, train, and fight. In 2003, DOD estimated $263 billion would be allocated from fiscal year 2004 through 2009 for transformation efforts. In this report GAO (1) describes DOD's strategy to transform joint military capabilities; (2) assesses the extent to which DOD has established clear leadership, accountability, and a mechanism to integrate transformation efforts; and (3) assesses the extent to which DOD's framework incorporates results-oriented management tools to guide transformation efforts."
Date:
December 17, 2004
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Dispute Settlement in the World Trade Organization: An Overview
This report provides an overview of the Dispute Settlement in the World Trade Organization. Dispute resolution in the World Trade Organization is carried out under the WTO dispute settlement understanding whose rules apply to virtually all WTO agreements.
Date:
December 17, 2004
Creator:
Grimmett, Jeanne J.
Object Type:
Report
System:
The UNT Digital Library
Environmental policy and regulatory constraints to natural gas production.
For the foreseeable future, most of the demand for natural gas in the United States will be met with domestic resources. Impediments, or constraints, to developing, producing, and delivering these resources can lead to price increases or supply disruptions. Previous analyses have identified lack of access to natural gas resources on federal lands as such an impediment. However, various other environmental constraints, including laws, regulations, and implementation procedures, can limit natural gas development and production on both federal and private lands. This report identifies and describes more than 30 environmental policy and regulatory impediments to domestic natural gas production. For each constraint, the source and type of impact are presented, and when the data exist, the amount of gas affected is also presented. This information can help decision makers develop and support policies that eliminate or reduce the impacts of such constraints, help set priorities for regulatory reviews, and target research and development efforts to help the nation meet its natural gas demands.
Date:
December 17, 2004
Creator:
Elcock, D.
Object Type:
Report
System:
The UNT Digital Library
Estimates of signals in LCLS diffraction imaging experiments
In the coherent X-ray diffraction imaging experiments, samples will be injected or placed in the beam and a two-dimensional diffraction pattern will be collected for a single pulse. This is repeated for a large number of pulses, with the data being read out of the detector each pulse, and stored if the data meets a requirement of enough total recorded counts. There must be sufficient pixels in the detector to over-sample the diffraction pattern, which depends on the sample size and desired resolution, as described below. The scattering from the sample covers a large dynamic range: it is strong very close to the central core and at high angles there will be much less than one photon per pixel. Since the technique relies upon classifying and averaging a large number of patterns, the read noise must be considerably less than the photon count per pixel averaged over these patterns. Estimates of the noise level and dynamic range are given below, after first listing the requirements of pixel count and sampling.
Date:
December 17, 2004
Creator:
Chapman, H N
Object Type:
Report
System:
The UNT Digital Library
Evaluation of normalization methods for cDNA microarray data by k-NN classification
Non-biological factors give rise to unwanted variations in cDNA microarray data. There are many normalization methods designed to remove such variations. However, to date there have been few published systematic evaluations of these techniques for removing variations arising from dye biases in the context of downstream, higher-order analytical tasks such as classification. Ten location normalization methods that adjust spatial- and/or intensity-dependent dye biases, and three scale methods that adjust scale differences were applied, individually and in combination, to five distinct, published, cancer biology-related cDNA microarray data sets. Leave-one-out cross-validation (LOOCV) classification error was employed as the quantitative end-point for assessing the effectiveness of a normalization method. In particular, a known classifier, k-nearest neighbor (k-NN), was estimated from data normalized using a given technique, and the LOOCV error rate of the ensuing model was computed. We found that k-NN classifiers are sensitive to dye biases in the data. Using NONRM and GMEDIAN as baseline methods, our results show that single-bias-removal techniques which remove either spatial-dependent dye bias (referred later as spatial effect) or intensity-dependent dye bias (referred later as intensity effect) moderately reduce LOOCV classification errors; whereas double-bias-removal techniques which remove both spatial- and intensity effect reduce LOOCV classification errors even …
Date:
December 17, 2004
Creator:
Wu, Wei; Xing, Eric P; Myers, Connie; Mian, Saira & Bissell, Mina J
Object Type:
Article
System:
The UNT Digital Library
Experimental Studies of Anode Sheath Phenomena in a Hall Thruster Discharge
Both electron-repelling and electron-attracting anode sheaths in a Hall thruster were characterized by measuring the plasma potential with biased and emissive probes [L. Dorf, Y. Raitses, V. Semenov, and N.J. Fisch, Appl. Phys. Let. 84 (2004) 1070]. In the present work, two-dimensional structures of the plasma potential, electron temperature, and plasma density in the near-anode region of a Hall thruster with clean and dielectrically coated anodes are identified. Possible mechanisms of anode sheath formation in a Hall thruster are analyzed. The path for current closure to the anode appears to be the determining factor in the anode sheath formation process. The main conclusion of this work is that the anode sheath formation in Hall thrusters differs essentially from that in the other gas discharge devices, like a glow discharge or a hollow anode, because the Hall thruster utilizes long electron residence times to ionize rather than high neutral pressures.
Date:
December 17, 2004
Creator:
Dorf, L.; Raitses, Y. & Fisch, N.J.
Object Type:
Report
System:
The UNT Digital Library
Experimental Studies of Quark-Gluon Structure of Nucleons and Nuclei
The NMSU group has a lengthy history in the study of the nucleon structure and in particular its spin structure in terms of its fundamental constituents. This line of research is continuing in our current involvement in experiments at Brookhaven National Lab and the Thomas Jefferson National Accelerator Facility.
Date:
December 17, 2004
Creator:
Kyle, Gary
Object Type:
Report
System:
The UNT Digital Library