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Waste Isolation Pilot Plant Biennial Environmental Compliance Report
This Biennial Environmental Compliance Report (BECR) documents environmental regulatory compliance at the Waste Isolation Pilot Plant (WIPP), a facility designed and authorized for the safe disposal of transuranic (TRU) radioactive waste, for the reporting period of April 1, 2002, to March 31, 2004. As required by the WIPP Land Withdrawal Act (LWA) (Public Law [Pub. L.] 102-579, as amended by Pub. L. 104-201), the BECR documents U.S. Department of Energy (DOE) compliance with applicable environmental protection laws and regulations implemented by agencies of the federal government and the state of New Mexico.
Date:
October 25, 2004
Creator:
Washington Regulatory and Environmental Services
Object Type:
Report
System:
The UNT Digital Library
Simulations of carbon fiber composite delamination tests
Simulations of mode I interlaminar fracture toughness tests of a carbon-reinforced composite material (BMS 8-212) were conducted with LSDYNA. The fracture toughness tests were performed by U.C. Berkeley. The simulations were performed to investigate the validity and practicality of employing decohesive elements to represent interlaminar bond failures that are prevalent in carbon-fiber composite structure penetration events. The simulations employed a decohesive element formulation that was verified on a simple two element model before being employed to perform the full model simulations. Care was required during the simulations to ensure that the explicit time integration of LSDYNA duplicate the near steady-state testing conditions. In general, this study validated the use of employing decohesive elements to represent the interlaminar bond failures seen in carbon-fiber composite structures, but the practicality of employing the elements to represent the bond failures seen in carbon-fiber composite structures during penetration events was not established.
Date:
October 25, 2007
Creator:
Kay, G
Object Type:
Report
System:
The UNT Digital Library
RECENT ACTIVITIES OF THE NUCLEAR SMUGGLING INTERNATIONAL TECHNICAL WORKING GROUP TO THWART ILLICIT TRAFFICKING
The Nuclear Smuggling International Technical Working Group (ITWG) is an informal association of nuclear forensic practitioners working in partnership with law enforcement, first responder, and nuclear regulatory professionals that cooperate to deter the illicit trafficking of nuclear materials. The objective of the ITWG is to advance the science of nuclear forensics and to provide a common approach and effective technical solutions to governments who request assistance. the ITWG was chartered in 1996 and since that time 30 nations and organizations have participated in 12 annual meetings and two analytical round-robin trials involving plutonium and highly enriched uranium. A third analytical round-robin as well as several table-top exercises are planned for later in 2007-2008. International interest in the ITWG has grown in over the past five years measured by the number of participants at its annual meetings. This growth has spawned the ITWG Nuclear Forensics Laboratories as a companion technical affiliate focusing exclusively on the scientific aspects of nuclear forensics and nuclear smuggling incident response.
Date:
October 25, 2007
Creator:
Smith, D K; Biro, T; Chartier, B; Mayer, K; Niemeyer, S & Thompson, P
Object Type:
Report
System:
The UNT Digital Library
Photoelectrochemical Hydrogen Production Using New Combinatorial Chemistry Derived Materials
Solar photoelectrochemical water-splitting has long been viewed as one of the “holy grails” of chemistry because of its potential impact as a clean, renewable method of fuel production. Several known photocatalytic semiconductors can be used; however, the fundamental mechanisms of the process remain poorly understood and no known material has the required properties for cost effective hydrogen production. In order to investigate morphological and compositional variations in metal oxides as they relate to opto-electrochemical properties, we have employed a combinatorial methodology using automated, high-throughput, electrochemical synthesis and screening together with conventional solid-state methods. This report discusses a number of novel, high-throughput instruments developed during this project for the expeditious discovery of improved materials for photoelectrochemical hydrogen production. Also described within this report are results from a variety of materials (primarily tungsten oxide, zinc oxide, molybdenum oxide, copper oxide and titanium dioxide) whose properties were modified and improved by either layering, inter-mixing, or doping with one or more transition metals. Furthermore, the morphologies of certain materials were also modified through the use of structure directing agents (SDA) during synthesis to create mesostructures (features 2-50 nm) that increased surface area and improved rates of hydrogen production.
Date:
October 25, 2004
Creator:
Jaramillo, Thomas F.; Baeck, Sung-Hyeon; Kleiman-Shwarsctein, Alan; Stucky, Galen D. (PI) & McFarland, Eric W.
Object Type:
Report
System:
The UNT Digital Library
Interactive, Internet Delivery of Visualization via Structured,Prerendered multiresolution Imagery
One of the fundamental problems in remote visualization --where I/O and data intensive visualization activities take place at acentrally located supercomputer center and resulting imagery is deliveredto a remotely located user -- is reduced interactivity resulting from thecombination of high network latency and relatively low network bandwidth.This research project has produced a novel approach for latency-tolerantdelivery of visualization and rendering results where client-side framerate display performance is independent of source dataset size, imagesize, visualization technique or rendering complexity. As such, it is asuitable solution for remote visualization image delivery for anyvisualization or rendering application that can generate image frames inan ordered fashion. This new capability is suitable for use in addressingmany of ASCR s remote visualization needs, particularly deployment atopen computing facilities to provide remote visualization capabilities toteams of scientific researchers.
Date:
October 25, 2007
Creator:
Bethel, E. Wes; Yoon, Ilmi & Chen, Jerry
Object Type:
Report
System:
The UNT Digital Library
Investigation of Tractor Base Bleeding for Heavy Vehicle Aerodynamic Drag Reduction
One of the main contributors to the aerodynamic drag of a heavy vehicle is tractor-trailer gap drag, which arises when the vehicle operates within a crosswind. Under this operating condition, freestream flow is entrained into the tractor-trailer gap, imparting a momentum exchange to the vehicle and subsequently increasing the aerodynamic drag. While a number of add-on devices, including side extenders, splitter plates, vortex stabilizers, and gap sealers, have been previously tested to alleviate this source of drag, side extenders remain the primary add-on device of choice for reducing tractor-trailer gap drag. However, side extenders are not without maintenance and operational issues. When a heavy vehicle pivots sharply with respect to the trailer, as can occur during loading or unloading operations, the side extenders can become crushed against the trailer. Consequently, fleet operators are forced to incur additional costs to cover the repair or replacement of the damaged side extenders. This issue can be overcome by either shortening the side extenders or by devising an alternative drag reduction concept that can perform just as effectively as side extenders. To explore such a concept, we investigate tractor base bleeding as a means of reducing gap drag. Wind tunnel measurements are made on …
Date:
October 25, 2007
Creator:
Ortega, J; Salari, K & Storms, B
Object Type:
Article
System:
The UNT Digital Library
Production-quality Tools for Adaptive Mesh RefinementVisualization
Adaptive Mesh Refinement (AMR) is a highly effectivesimulation method for spanning a large range of spatiotemporal scales,such as astrophysical simulations that must accommodate ranges frominterstellar to sub-planetary. Most mainstream visualization tools stilllack support for AMR as a first class data type and AMR code teams usecustom built applications for AMR visualization. The Department ofEnergy's (DOE's) Science Discovery through Advanced Computing (SciDAC)Visualization and Analytics Center for Enabling Technologies (VACET) isextending and deploying VisIt, an open source visualization tool thataccommodates AMR as a first-class data type, for use asproduction-quality, parallel-capable AMR visual data analysisinfrastructure. This effort will help science teams that use AMR-basedsimulations and who develop their own AMR visual data analysis softwareto realize cost and labor savings.
Date:
October 25, 2007
Creator:
Weber, Gunther H.; Childs, Hank; Bonnell, Kathleen; Meredith,Jeremy; Miller, Mark; Whitlock, Brad et al.
Object Type:
Report
System:
The UNT Digital Library
Black holes in supergravity: the non-BPS branch
We construct extremal, spherically symmetric black hole solutions to 4D supergravity with charge assignments that preclude BPS-saturation. In particular, we determine the ground state energy as a function of charges and moduli. We find that the mass of the non-BPS black hole remains that of a marginal bound state of four basic constituents throughout the entire moduli space and that there is always a non-zero gap above the BPS bound.
Date:
October 25, 2007
Creator:
Gimon, Eric; Gimon, Eric G.; Larsen, Finn & Simon, Joan
Object Type:
Article
System:
The UNT Digital Library
Isentropic Compression Experiments Performed By LLNL On Energetic Material Samples Using The Z Accelerator
Several experiments have been conducted by LLNL researchers using isentropic compression experiments (ICE) on energetic materials as samples from Fiscal Year 2001 (FY01) to Fiscal Year 2005 (FY05). Over this span of time, advancements of the experimental techniques and modeling of the results have evolved to produce improved results. This report documents the experiments that have been performed, provides details of the results generated, and modeling and analysis advances to fully understand the results. Publications on the topics by the various principal investigators (PI's) are detailed in the Appendices for quick reference for the work as it progressed.
Date:
October 25, 2007
Creator:
Vandersall, K S; Reisman, D B; Forbes, J W; Hare, D E; Garcia, F; Uphaus, T M et al.
Object Type:
Report
System:
The UNT Digital Library
Design and Commissioning Plan for a Laser Heater for FERMI@elettra
The purpose of a laser heater is to increase the electron beam uncorrelated energy spread as a way to control and ideally suppress the microbunching instability in the linac drive for x-rays FELs. We review the motivations for equipping FERMI with a laser heater and provide a specification for the basics parameters as well as a description of a practical layout including desired diagnostics provisions for both the electron and laser beams. We also outline some useful operational guidelines for commissioning.
Date:
October 25, 2008
Creator:
Zholents, Alexander A.; Qiang, J.; Venturini, M.; Wells,, R.; Wilcox, R.; Di Mitri, S. et al.
Object Type:
Report
System:
The UNT Digital Library
Expendable Precision Laser Aimer for Shaped Charges
Certain shaped-charge cutting operations require a precision aiming system that is operationally convenient, robust, and constructed to allow the aiming system to be left in place for last-minute alignment verification until it is expended when the charge is fired. This report describes an aiming system made from low cost doubled-Nd:YAG 532 nm laser modules of the type used in green laser pointers. Drawings and detailed procedures for constructing the aiming system are provided, as are the results of some minimal tests performed on a prototype device.
Date:
October 25, 2007
Creator:
Ault, S & Kuklo, R
Object Type:
Report
System:
The UNT Digital Library
GE Appliance Park Louisville, KY Plant Wide Assessment Final Report October 25th, 2007
Used a team of experts to analyze and model major systems at a large industrial appliance manufacturer. During the data gathering stage, the team specifically looked for baselining the efficiency of the systems as well as developing short term and longer term efficiency projects. Electrical distribution, Compressed air generation and thermal heat recovery for the production facility and front office heating and cooling optimization were all baselined during the study.
Date:
October 25, 2007
Creator:
Rao, Chandon & Urschel, Richard
Object Type:
Report
System:
The UNT Digital Library
Greensheet (Houston, Tex.), Vol. 38, No. 452, Ed. 1 Thursday, October 25, 2007
Free weekly newspaper that includes business and classified advertising.
Date:
October 25, 2007
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Greensheet (Houston, Tex.), Vol. 38, No. 453, Ed. 1 Thursday, October 25, 2007
Free weekly newspaper that includes business and classified advertising.
Date:
October 25, 2007
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Greensheet (Houston, Tex.), Vol. 36, No. 446, Ed. 1 Tuesday, October 25, 2005
Free weekly newspaper that includes business and classified advertising.
Date:
October 25, 2005
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Today Cedar Hill (Duncanville, Tex.), Vol. 36, No. 32, Ed. 1 Thursday, October 25, 2001
Weekly newspaper published in Duncanville, Texas that includes local Cedar Hill, state, and national news along with advertising.
Date:
October 25, 2001
Creator:
Crooks, Kristi
Object Type:
Newspaper
System:
The Portal to Texas History
University Press (Beaumont, Tex.), Vol. 77, No. 14, Ed. 1 Wednesday, October 25, 2000
Semiweekly newspaper from Lamar University in Beaumont, Texas that includes local, national, and campus news along with advertising.
Date:
October 25, 2000
Creator:
Cobb, Joshua
Object Type:
Newspaper
System:
The Portal to Texas History
[Correspondence from Catherine Murphy to Eleanor Brown, Oct 25, 2004]
Correspondence from Catherine Murphy to Eleanor Brown containing a copy of the information Murphy has on file for Brown and a list of the WASPs in Region 2. A handwritten note at the top of page 1 states, "Total 175 WASP in Reg II."
Date:
October 25, 2004
Creator:
Murphy, Catherine A.
Object Type:
Letter
System:
The Portal to Texas History
Bogata News (Bogata, Tex.), Vol. 91, No. 23, Ed. 1 Thursday, October 25, 2001
Weekly newspaper from Bogata, Texas that includes local, state, and national news along with advertising.
Date:
October 25, 2001
Creator:
Nichols, Nanalee & Nichols, Thomas
Object Type:
Newspaper
System:
The Portal to Texas History
F-35 Lightning II Joint Strike Fighter (JSF) Program: Background, Status, and Issues
This report discusses the background, status, and current issues of the Joint Strike Fighter (JSF) program. The Defense Department's F-35 Lightning II JSF is one of three aircraft modernization programs in tactical aviation, the others being the Air Force F-22A fighter and the Navy F/A-18E/F fighter/attack plane.
Date:
October 25, 2007
Creator:
Murch, Anthony
Object Type:
Report
System:
The UNT Digital Library
Cherokeean/Herald (Rusk, Tex.), Vol. 152, No. 36, Ed. 1 Thursday, October 25, 2001
Weekly newspaper from Rusk, Texas that includes local, state and national news along with extensive advertising.
Date:
October 25, 2001
Creator:
Whitehead, Marie
Object Type:
Newspaper
System:
The Portal to Texas History
Cherokeean Herald (Rusk, Tex.), Vol. 157, No. 36, Ed. 1 Wednesday, October 25, 2006
Weekly newspaper from Rusk, Texas that includes local, state and national news along with extensive advertising.
Date:
October 25, 2006
Creator:
Whitehead, Marie
Object Type:
Newspaper
System:
The Portal to Texas History
[South Arlington Police Service Center grand opening program]
Photograph of a white-bordered front cover of a program titled in three lines of gold print: "South Arlington; Police Service Center; Grand Opening." Beneath the title on the right side in small black print is the date and time: "Saturday, October 25, 2008; 10:00 a.m." In the center of the cover is a color graphic picture of the new facility. At the bottom is the City of Arlington decal (left leg of the "A" is blue, right is red, crossed by a silver star with "Arlington" spelled out below in blue). The new station was located at 1030 SW Green Oaks.
Date:
October 25, 2008
Creator:
unknown
Object Type:
Photograph
System:
The Portal to Texas History
North Texas Daily (Denton, Tex.), Vol. 91, No. 32, Ed. 1 Thursday, October 25, 2007
Daily student newspaper from the University of North Texas in Denton, Texas that includes local, state and campus news along with advertising.
Date:
October 25, 2007
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History