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21st Century Locomotive Technology: Quarterly Technical Status Report 6 DOE/AL68284-TSR06
Experimental work to map the performance of the High Pressure Common Rail (HPCR) system on a locomotive is in progress. The experimental trends agree with KIVA modeling predictions. Injection optimization is in progress. Electrically-assisted turbocharger modeling was used to study passenger locomotive performance improvements. Energy storage cycling life testing began, and an improved battery state algorithm was determined. The hybrid locomotive energy storage was prepared for energy management system algorithm testing. Progress in reliable methods for computing optimal driving plans, and methods to reduce the complexity of the necessary optimization are reported.
Date:
August 31, 2004
Creator:
Salasoo, Lembit; Topinka, Jennifer & Houpt, Paul K.
Object Type:
Report
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 106, No. 130, Ed. 1 Tuesday, August 31, 2004
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 31, 2004
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Architect of the Capitol: Midyear Status Report on Implementation of Management Review Recommendations
A letter report issued by the Government Accountability Office with an abstract that begins "The Conference Report on the Consolidated Appropriations Resolution, 2003, directed GAO to monitor AOC's progress in implementing recommendations contained in GAO's management review of AOC's operations, issued in January 2003. This is the second status report in which GAO examines the actions taken by AOC to implement selected GAO recommendations. Additionally, the Consolidated Appropriations Resolution, 2003, mandated GAO to assess AOC's Chief Operating Officer's (COO) action plan. This report provides that assessment."
Date:
August 31, 2004
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Architecture independent performance characterization andbenchmarking for scientific applications
A simple, tunable, synthetic benchmark with a performance directly related to applications would be of great benefit to the scientific computing community. In this paper, we present a novel approach to develop such a benchmark. The initial focus of this project is on data access performance of scientific applications. First a hardware independent characterization of code performance in terms of address streams is developed. The parameters chosen to characterize a single address stream are related to regularity, size, spatial, and temporal locality. These parameters are then used to implement a synthetic benchmark program that mimics the performance of a corresponding code. To test the validity of our approach we performed experiments using five test kernels on six different platforms. The performance of most of our test kernels can be approximated by a single synthetic address stream. However in some cases overlapping two address streams is necessary to achieve a good approximation.
Date:
August 31, 2004
Creator:
Strohmaier, Erich & Shan, Hongzhang
Object Type:
Article
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 83, No. 273, Ed. 1 Tuesday, August 31, 2004
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
August 31, 2004
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
Boerne Star & Hill Country Recorder (Boerne, Tex.), Vol. 98, No. 59, Ed. 1 Tuesday, August 31, 2004
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
August 31, 2004
Creator:
Cartwright, Brian & Morgan, Clay
Object Type:
Newspaper
System:
The Portal to Texas History
Brady Standard-Herald and Heart O' Texas News (Brady, Tex.), Ed. 1 Tuesday, August 31, 2004
Semiweekly newspaper from Brady, Texas that includes local, state, and national news along with advertising.
Date:
August 31, 2004
Creator:
Stewart, James E.
Object Type:
Newspaper
System:
The Portal to Texas History
The Brand (Abilene, Tex.), Vol. 92, No. 2, Ed. 1, Tuesday, August 31, 2004
Weekly student newspaper from Hardin-Simmons University in Abilene, Texas that includes local, state and campus news along with advertising.
Date:
August 31, 2004
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Breeding pond selection and movement patterns by eastern spadefoot toads (Scaphiopus holbrookii) in relation to weather and edaphic conditions.
Cathryn H. Greenberg and George W. Tanner. 2004. Breeding pond selection and movement patterns by eastern spadefoot toads (Scaphiopus holbrookii) in relation to weather and edaphic conditions. J. Herp. 38(4):569-577. Abstract: Eastern Spadefoot Toads (Scaphiopus holbrookii) require fish-free, isolated, ephemeral ponds for breeding but otherwise inhabit the surrounding uplands, commonly xeric longleaf pine (Pinus palustris) wiregrass (Aristida beyrichiana). Hence both pond and upland conditions can potentially affect their breeding biology, and population persistence. Hardwood invasion due to fire suppression in sandhills could alter upland and pond suitability by higher hardwood density and increased transpiration. In this paper we explore breeding and neonatal emigration movements in relation to weather, hydrological conditions of ponds, and surrounding upland matrices. We use 9 years of data from continuous monitoring with drift fences and pitfall traps at 8 ephemeral ponds in 2 upland matrices: regularly-burned, savanna-like sandhills (n = 4), and hardwood-invaded sandhills (n = 4). Neither adult nor neonate captures differed between ponds within the 2 upland matrices, suggesting that they are tolerant of upland heterogeneity created by fire frequency. Explosive breeding occurred during 9 periods and in all seasons; adults were captured rarely otherwise. At a landscape-level rainfall, maximum change in barometric pressure, …
Date:
August 31, 2004
Creator:
Greenberg, Cathyrn, H. & Tanner, George, W.
Object Type:
Article
System:
The UNT Digital Library
CROSS-ROLL FLOW FORMING OF ODS ALLOY HEAT EXCHANGER TUBES FOR HOOP CREEP ENHANCEMENT
Mechanically alloyed oxide dispersion strengthened (ODS) Fe-Cr-Al alloy thin walled tubes and sheets, produced via powder processing and consolidation methodologies, are promising materials for eventual use at temperatures up to 1200 C in the power generation industry, far above the temperature capabilities of conventional alloys. Target end-uses range from gas turbine combustor liners to high aspect ratio (L/D) heat exchanger tubes. Grain boundary creep processes at service temperatures, particularly those acting in the hoop direction, are the dominant failure mechanisms for such components. The processed microstructure of ODS alloys consists of high aspect ratio grains aligned parallel to the tube axis, a result of dominant axial metal flow which aligns the dispersoid particles and other impurities in the longitudinal direction. The dispersion distribution is unaltered on a micro scale by recrystallization thermal treatments, but the high aspect ratio grain shape typically obtained limits transverse grain spacing and consequently the hoop creep response. Improving hoop creep in ODS-alloy components will require understanding and manipulating the factors that control the recrystallization behavior, and represents a critical materials design and development challenge that must be overcome in order to fully exploit the potential of ODS alloys. The objectives of this program are to …
Date:
August 31, 2004
Creator:
Kad, Bimal K.
Object Type:
Report
System:
The UNT Digital Library
CSNF WASTE FORM DEGRADATION: SUMMARY ABSTRACTION
The purpose of this model report is to describe the development and validation of models that can be used to calculate the release of radionuclides from commercial spent nuclear fuel (CSNF) following a hypothetical breach of the waste package and fuel cladding in the repository. The purpose also includes describing the uncertainties associated with modeling the radionuclide release for the range of CSNF types, exposure conditions, and durations for which the radionuclide release models are to be applied. This document was developed in accordance with Technical Work Plan for: Regulatory Integration Modeling and Analysis of the Waste Form and Waste Package (BSC 2004 [DIRS 169944]). This document considers radionuclides to be released from CSNF when they are available for mobilization by gas-phase mass transport, or by dissolution or colloid formation in water that may contact the fuel. Because other reports address limitations on the dissolved and colloidal radionuclide concentrations (BSC 2004 [DIRS 169944], Table 2-1), this report does not address processes that control the extent to which the radionuclides released from CSNF are mobilized and transported away from the fuel either in the gas phase or in the aqueous phase as dissolved and colloidal species. The scope is limited to …
Date:
August 31, 2004
Creator:
CUNNANE, J.C.
Object Type:
Report
System:
The UNT Digital Library
Dangerous Waste Characteristics of Contact-Handled Transuranic Mixed Wastes from the Hanford Tanks
This report summarizes existing analytical data from samples taken from the Hanford tanks designated as potentially containing transuranic mixed process wastes. Process knowledge of the wastes transferred to these tanks has been reviewed to determine whether the dangerous waste characteristics now assigned to all Hanford underground storage tanks are applicable to these particular wastes. Supplemental technologies are being examined to accelerate the Hanford tank waste cleanup mission and accomplish waste treatment safely and efficiently. To date, 11 Hanford waste tanks have been designated as potentially containing contact-handled (CH) transuranic mixed (TRUM) wastes. The CH-TRUM wastes are found in single-shell tanks B-201 through B-204, T-201 through T-204, T-104, T-110, and T-111. Methods and equipment to solidify and package the CH-TRUM wastes are part of the supplemental technologies being evaluated. The resulting packages and wastes must be acceptable for disposal at the Waste Isolation Pilot Plant (WIPP). The dangerous waste characteristics being considered include ignitability, corrosivity, reactivity, and toxicity arising from the presence of 2,4,5-trichlorophenol at levels above the dangerous waste threshold. The analytical data reviewed include concentrations of sulfur, sulfate, cyanide, 2,4,5-trichlorophenol, total organic carbon, and oxalate; the composition of the tank headspace, pH, and mercury. Differential scanning calorimetry results were …
Date:
August 31, 2004
Creator:
Tingey, Joel M.; Bryan, Garry H. & Deschane, Jaquetta R.
Object Type:
Report
System:
The UNT Digital Library
Demonstrating the Feasibility of Molten Aluminum for Destroying Polymeric Encapsulants in SNG-Bearing Metallographic Mounts
DOE-owned spent nuclear fuel (SNF) rods have been cross sectioned and mounted for metallography throughout the history of nuclear reactors. Many hundreds of these ''met mounts'' have accumulated in storage across the DOE complex. However, because of potential hydrogen generation from radiolysis of the polymeric encapsulants, the met mounts are problematic for eventual disposal in a geologic repository.
Date:
August 31, 2004
Creator:
Stout, Dan & Ploger, Scott
Object Type:
Report
System:
The UNT Digital Library
Development of numerical Grids for UZ Flow and Transport Modeling
This report describes the methods used to develop numerical grids of the unsaturated hydrogeologic system beneath Yucca Mountain, Nevada. Numerical grid generation is an integral part of the development of the unsaturated zone (UZ) flow and transport model, a complex, three-dimensional (3-D) model of Yucca Mountain. This revision contains changes made to improve the clarity of the description of grid generation. The numerical grids, developed using current geologic, hydrogeologic, and mineralogic data, provide the necessary framework to: (1) develop calibrated hydrogeologic property sets and flow fields, (2) test conceptual hypotheses of flow and transport, and (3) predict flow and transport behavior under a variety of climatic and thermal-loading conditions. The technical scope, content, and management for the current revision of this report are described in the planning document ''Technical Work Plan for: Unsaturated Zone Flow Analysis and Model Report Integration'' (BSC 2004 [DIRS 169654], Section 2). Grids generated and documented in this report supersede those documented in Revision 00 of this report, ''Development of Numerical Grids for UZ Flow and Transport Modeling'' (BSC 2001 [DIRS 159356]). The grids presented in this report are the same as those developed in Revision 01 (BSC 2003 [DIRS 160109]); however, the documentation of the …
Date:
August 31, 2004
Creator:
Dobson, P.
Object Type:
Report
System:
The UNT Digital Library
Development of Radiation-Hardening Ceramic Composites for Fusion Applications
This Progress Report describes work performed as a collaborative effort between Rensselaer Polytechnic Institute (RPI) and Oak Ridge National Laboratory (ORNL). This research is focused in four areas considered to be critical issues for using SiC fiber-reinforced SiC matrix composites (SiC/SiC) as structural materials in a fusion environment: (1) Calculation of the critical dose and temperature for amorphization of SiC by using the TRIM computer code to analyze ORNL and literature data; (2) Measurement of irradiation-induced creep in monolithic SiC or stoichiometric SiC fibers; (3) Determining the effects of high-temperature irradiation on monolithic SiC as part of ORNL's METS experiment; and (4) Gauging the effectiveness of polymer impregnation pyrolysis in improving SiC/SiC composite hermicity. Progress in each area is described, as well as plans for next year.
Date:
August 31, 2004
Creator:
Steiner, Don
Object Type:
Report
System:
The UNT Digital Library
DOWNHOLE VIBRATION MONITORING & CONTROL SYSTEM
The deep hard rock drilling environment induces severe vibrations into the drillstring, which can cause reduced rates of penetration (ROP) and premature failure of the equipment. The only current means of controlling vibration under varying conditions is to change either the rotary speed or the weight-on-bit (WOB). These changes often reduce drilling efficiency. Conventional shock subs are useful in some situations, but often exacerbate the problems. The objective of this project is development of a unique system to monitor and control drilling vibrations in a ''smart'' drilling system. This system has two primary elements: (1) The first is an active vibration damper (AVD) to minimize harmful axial, lateral and torsional vibrations. The hardness of this damper will be continuously adjusted using a robust, fast-acting and reliable unique technology. (2) The second is a real-time system to monitor drillstring vibration, and related parameters. This monitor adjusts the damper according to local conditions. In some configurations, it may also send diagnostic information to the surface via real-time telemetry. The AVD is implemented in a configuration using magnetorheological (MR) fluid. By applying a current to the magnetic coils in the damper, the viscosity of the fluid can be changed rapidly, thereby altering the …
Date:
August 31, 2004
Creator:
Cobern, Martin E.
Object Type:
Report
System:
The UNT Digital Library
Effects of Altered Temperature & Precipitation on Soil Bacterial & Microfaunal Communities as Mediated by Biological Soil Crusts
With increased temperatures in our original pot study we observed a decline in lichen/moss crust cover and with that a decline in carbon and nitrogen fixation, and thus a probable decline of C and N input into crusts and soils. Soil bacteria and fauna were affected negatively by increased temperature in both light and dark crusts, and with movement from cool to hot and hot to hotter desert climates. Crust microbial biomass and relative abundance of diazotrophs was reduced greatly after one year, even in pots that were not moved from their original location, although no change in diazotroph community structure was observed. Populations of soil fauna moved from cool to hot deserts were affected more negatively than those moved from hot to hotter deserts.
Date:
August 31, 2004
Creator:
Neher, Deborah A.
Object Type:
Text
System:
The UNT Digital Library
Environmental Assessment for the Strategic Petroleum Reserve West Hackberry Facility Raw Water Intake Pipeline Replacement Cameron and Calcasieu Parishes, Louisiana
The proposed action and three alternatives, including a No Build alternative, were evaluated along the existing RWIPL alignment to accommodate the placement of the proposed RWIPL. Construction feasibility, reasonableness and potential environmental impacts were considered during the evaluation of the four actions (and action alternatives) for the proposed RWIPL activities. Reasonable actions were identified as those actions which were considered to be supported by common sense and sound technical principles. Feasible actions were those actions which were considered to be capable of being accomplished, practicable and non-excessive in terms of cost. The evaluation process considered the following design specifications, which were determined to be important to the feasibility of the overall project. The proposed RWIPL replacement project must therefore: (1) Comply with the existing design basis and criteria, (2) Maintain continuity of operation of the facility during construction, (3)Provide the required service life, (4) Be cost effective, (5)Improve the operation and maintenance of the pipeline, and (6) Maintain minimal environmental impact while meeting the performance requirements. Sizing of the pipe, piping construction materials, construction method (e.g., open-cut trench, directional drilling, etc.) and the acquisition of new Right-of-Way (ROW) were additionally evaluated in the preliminary alternative identification, selection and screening process.
Date:
August 31, 2004
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Tuesday, August 31, 2004
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 31, 2004
Creator:
Bush, Kent
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Faculty Recital: 2004-08-31 - James Scott, flute, Leonid Yanovskiy, violin, and Natalia Yuryghina, piano
Access:
Use of this item is restricted to the UNT Community
Recital performed at UNT College of Music Concert Hall on August 31, 2004 at 8:00 pm.
Date:
August 31, 2004
Creator:
Scott, James Copeland; Yanovskiy, Leonid & Yuryghina, Natalia
Object Type:
Sound
System:
The UNT Digital Library
FBI Transformation: Data Inconclusive on Effects of Shift to Counterterrorism-Related Priorities on Traditional Crime Enforcement
A letter report issued by the Government Accountability Office with an abstract that begins "As a result of the terrorist attacks of September 11, 2001, the Federal Bureau of Investigation (FBI) has committed to a transformation to increase its focus on national security. The FBI has shifted agent resources to its top priorities of counterterrorism, counterintelligence, and cyber crime. Some of these agent resources were shifted away from drug, white-collar, and violent crime enforcement programs. The FBI's drug program has sustained, by far, the largest reduction in FBI agent workforce--about 550 positions, or more than 80 percent of the nonsupervisory field agents who were permanently reprogrammed. In addition, the FBI has had a continuing need to temporarily redirect agents from drug, white-collar, and violent crime enforcement to address counterterrorism-related workload demands. While GAO and other organizations have focused considerable attention on the progress of the FBI's transformation, this report addresses questions about the extent to which the shift in resources has affected federal efforts to combat drug, white-collar, and violent crime and whether other agencies, including the Drug Enforcement Administration (DEA) in the drug enforcement area, are filling gaps created by FBI resource shifts."
Date:
August 31, 2004
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Federal-Aid Highways: Trends, Effect on State Spending, and Options for Future Program Design
A letter report issued by the Government Accountability Office with an abstract that begins "In 2004, both houses of Congress approved separate legislation to reauthorize the federal-aid highway program to help meet the Nation's surface transportation needs, enhance mobility, and promote economic growth. Both bills also recognized that the Nation faces significant transportation challenges in the future, and each established a National Commission to assess future revenue sources for the Highway Trust Fund and to consider the roles of the various levels of government and the private sector in meeting future surface transportation financing needs. This report (1) updates information on trends in federal, state, and local capital investment in highways; (2) assesses the influence that federal-aid highway grants have had on state and local highway spending; (3) discusses the implications of these trends for the federal-aid highway program; and (4) discusses options for the federal-aid highway program."
Date:
August 31, 2004
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Finding of No Significant Impact for the Environmental Assessment for the Strategic Petroleum Reserve West Hackberry Facility Raw Water Intake Pipeline Replacement Cameron and Calcasieu Parishes, Louisiana
DOE has prepared an Environmental Assessment (EA), DOE/EA-1497, for the proposed replacement of the existing 107 centimeter (cm) [42 inch (in)] 6.87 kilometer (km) [4.27 mile (mi)] raw water intake pipeline (RWIPL). This action is necessary to allow for continued, optimum operations at the West Hackberry facility (main site/facility). The EA described the proposed action (including action alternatives) and three alternatives to the proposed action. The EA evaluated only the potential environmental consequences of the proposed action (one action alternative), and Alternative 3, which consisted of the No Build Action that is required by 10 CFR 1021.321(c). Based on the analysis in DOE/EA-1497, DOE has determined that the proposed action does not constitute a major Federal action significantly affecting humans or the natural environment within the meaning of the National Environmental Policy Act of 1969 (NEPA), 42 USC 4321 et seq. Therefore, an Environmental Impact Statement (EIS) is not required, and DOE is issuing this Finding of No Significant Impact (FONSI). To further minimize impacts to environmental media, the DOE will also implement a Mitigation Action Plan (MAP) for this action. The MAP is included as Appendix F of this EA, which is appended to this FONSI. The Energy Policy …
Date:
August 31, 2004
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
History Matching in Parallel Computational Environments
In the probabilistic approach for history matching, the information from the dynamic data is merged with the prior geologic information in order to generate permeability models consistent with the observed dynamic data as well as the prior geology. The relationship between dynamic response data and reservoir attributes may vary in different regions of the reservoir due to spatial variations in reservoir attributes, fluid properties, well configuration, flow constrains on wells etc. This implies probabilistic approach should then update different regions of the reservoir in different ways. This necessitates delineation of multiple reservoir domains in order to increase the accuracy of the approach. The research focuses on a probabilistic approach to integrate dynamic data that ensures consistency between reservoir models developed from one stage to the next. The algorithm relies on efficient parameterization of the dynamic data integration problem and permits rapid assessment of the updated reservoir model at each stage. The report also outlines various domain decomposition schemes from the perspective of increasing the accuracy of probabilistic approach of history matching. Research progress in three important areas of the project are discussed: {lg_bullet}Validation and testing the probabilistic approach to incorporating production data in reservoir models. {lg_bullet}Development of a robust scheme …
Date:
August 31, 2004
Creator:
Bryant, Steven; Srinivasan, Sanjay; Barrera, Alvaro & Yadav, Sharad
Object Type:
Report
System:
The UNT Digital Library