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NSLS 2002 ACTIVITY REPORT (NATIONAL SYNCHROTRON LIGHT SOURCE ACTIVITY REPORT 2002).

Description: The year 2002 has been another highly productive year at the NSLS and an impressive array of highlights from this scientific activity is included in this Activity Report. They have taken significant steps this past year toward better supporting beamlines and users. The number of user science support staff has been increased by about ten positions. They have also worked with their users, DOE, and the other DOE synchrotron facilities to develop a new, more flexible user access policy. Doing thing… more
Date: May 1, 2003
Creator: Miller, L.
Partner: UNT Libraries Government Documents Department
open access

Development of a Rolling Process Design Tool for Use in Improving Hot Roll Slab Recovery

Description: In this quarter, our primary effort has been focused on model verification, emphasizing on consistency in result for parallel and serial simulation runs, Progress has been made in refining the parallel thermal algorithms and in diminishing discretization effects in the contact region between the rollers and slab. We have received the metrology data of the ingot profile at the end of the fifth pass from Alcoa. Detailed comparisons between the data and the initial simulation result are being perf… more
Date: May 6, 2003
Creator: Couch, R & Wang, P
Partner: UNT Libraries Government Documents Department
open access

Quarterly Report (Reporting Period January 15, 2003 through April 15, 2003)

Description: Summaries of the activities and accomplishments during this second quarter reporting period for each of the consortium participants are given. Some of the highlights for this reporting period include: Even without the forcing speaker, the ''Mozart'' device on the GCM geometry provides over 20% reduction in drag at 0 degree yaw and above 25% reductions at higher yaw angles; Experiments and computations guide a conceptual design for reduction of drag due to tractor-trailer gap flow; RANS simulati… more
Date: May 15, 2003
Creator: McCallen, R.; Salari, K.; Ortega, J.; Browand, F.; Hammache, M.; Hsu, T. Y. et al.
Partner: UNT Libraries Government Documents Department
open access

Performance Technolgies for Peta-Scale Systems: A White Paper Prepared by the Performance Evaluation Research Center

Description: Future-looking high end computing initiatives will deploy powerful, large-scale computing platforms that leverage novel component technologies for superior node performance in advanced system architectures with tens or even hundreds of thousands of nodes. Recent advances in performance tools and modeling methodologies suggest that it is feasible to acquire such systems intelligently and achieve excellent performance, while also significantly reducing the user time required to attain high perfor… more
Date: May 20, 2003
Creator: Bailey, D. H.; de Supinski, B. R.; Dongarra, J.; Dunigan, T.; Gao, G.; Hoisie, A. et al.
Partner: UNT Libraries Government Documents Department
open access

RCRA Groundwater Monitoring Plan for Single-Shell Tank Waste Management Area C, Interim Change Notice 2

Description: This interim change notice makes changes in the original groundwater monitoring plan. This ICN documents the deferral of statistical upgradient/downgradient comparisons for WMA C until conductivity stabilized in upgradient well 299-E27-7 or a new upgradient well is installed and stable and upgradient values for specific conductance are obtained.
Date: May 20, 2003
Creator: Narbutovskih, Susan M. (BATTELLE (PACIFIC NW LAB)) & Chou, Charissa J. (BATTELLE (PACIFIC NW LAB))
Partner: UNT Libraries Government Documents Department
open access

Evaluation of the Effects of Chromium to Fall Chinook Salmon in the Hanford Reach of the Columbia River: Integration of Recent Toxicity Test Results

Description: The objective of this report was to summarize results of a series of recent laboratory studies conducted to evaluate the effects of chromium on chinook salmon. Individual studies focused on determining the relationship between exposure concentration and toxicological response for a range of life stages including fertilization, egg through swim-up (early life history), parr health, and avoidance-preference of juveniles. Study designs were representative of possible exposure scenarios in the Hanf… more
Date: May 1, 2003
Creator: Dauble, Dennis D.; Patton, Gregory W.; Poston, Ted M. & Peterson, Robert E.
Partner: UNT Libraries Government Documents Department
open access

Investigation of the Electronic Structure of Solid Density Plasmas by X-Ray Scattering

Description: We present an improved analytical expression for the x-ray dynamic structure factor from a dense plasma which includes the effects of weakly bound electrons. This result can be applied to describe scattering from low to moderate Z plasmas, and it covers the entire range of plasma conditions that can be found in inertial confinement fusion experiments, from ideal to degenerate up to moderately coupled systems. We use our theory to interpret x-ray scattering experiments from solid density carbon … more
Date: May 19, 2003
Creator: Gregori, G; Glenzer, S H; Forest, F J; Kuhlbrodt, S; Redmer, R; Faussurier, G et al.
Partner: UNT Libraries Government Documents Department
open access

Impact of Biodiesel Fuels on Air Quality and Human Health: Task 4 Report; Impacts of Biodiesel Fuel Use on PM

Description: This document is the Task 4 report for the NREL"Impacts of Biodiesel Fuels on Air Quality and Human Health" study. The objective of Task 4 is to estimate the effects of the use of biodiesel fuels on particulate matter levels and the resulting exposure to elevated levels of particulate matter.
Date: May 1, 2003
Creator: Morris, R. E. & Jia, Y.
Partner: UNT Libraries Government Documents Department
open access

Analysis of Shock-Void Experiment

Description: The authors compare CALE simulations with recent experimental results of a laser-induced shock traversing a spherical under-dense region (''void''). In this report the experimental results are described, as well as several numerical attempts at explaining the observed radiographs. The conclusion is that the numerical simulations at this time cannot satisfactorily explain the experiment. The simulations also indicate that the introduction of air gaps between the under-dense sphere and the surrou… more
Date: May 2, 2003
Creator: Woods, D T; Robey, H & Stry, P
Partner: UNT Libraries Government Documents Department
open access

Integration of Xantrex HY-100 Hybrid Inverter with an AC Induction Wind Turbine

Description: Several issues must be addressed before solid-state inverters can be used in wind-diesel systems with larger wind turbines. This project addresses those issues by using a commercial hybrid inverter designed for PV-diesel systems and modifying the inverter for use with an AC induction wind turbine. Another approach would have entailed building an inverter specifically for use with an AC induction wind turbine, but that was beyond the scope of this project. The inverter chosen for this project wa… more
Date: May 1, 2003
Creator: Corbus, D.; Newcomb, C. & Friedly, S.
Partner: UNT Libraries Government Documents Department
open access

Model for TCLP Releases from Waste Glasses

Description: A first-order property model for normalized Toxicity Characteristic Leaching Procedure (TCLP) release as a function of glass composition was developed using data collected from various studies. The normalized boron release is used to estimate the release of toxic elements based on the observation that the boron release represents the conservative release for those constituents of interest. The current TCLP model has two targeted application areas: (1) delisting of waste-glass product as radioac… more
Date: May 1, 2003
Creator: Kim, Dong-Sang & Vienna, John D.
Partner: UNT Libraries Government Documents Department
open access

Geochemistry of Samples from Borehole C3177(299-E24-21)

Description: This report contains the results of geochemical and physical property analyses of twelve samples from the Immobilized Low-Activity Waste (ILAW) borehole #2. The borehole is in the middle of the 200 East Area, at the northeast corner of the ILAW disposal site.
Date: May 28, 2003
Creator: Horton, Duane G.; Schaef, Herbert T.; Serne, R. Jeffrey; Brown, Christopher F.; Valenta, Michelle M.; Vickerman, Tanya S. et al.
Partner: UNT Libraries Government Documents Department
open access

3D Computations and Experiments

Description: This project is in its first full year after the combining of two previously funded projects: ''3D Code Development'' and ''Dynamic Material Properties''. The motivation behind this move was to emphasize and strengthen the ties between the experimental work and the computational model development in the materials area. The next year's activities will indicate the merging of the two efforts. The current activity is structured in two tasks. Task A, ''Simulations and Measurements'', combines all t… more
Date: May 12, 2003
Creator: Couch, R; Faux, D; Goto, D & Nikkel, D
Partner: UNT Libraries Government Documents Department
open access

Gas Ionization by Beam Electron Collisions and by Electron Avalanching in the Self Ez Field of a 2 kA Relativistic Electron Beam Focused on a Conducting Target

Description: About 1.5 x 10{sup 12} positive ions are predicted to be required to disrupt the focusing (for 0.25 cm radius and 0.2 electric neutralization fraction). Beam electron collisions are predicted to produce this number in 20 ns with 6 x 10{sup 15} water molecules/cm{sup 2}. Electron avalanching is predicted to be intense at time zero in a gas layer about 10{sup -3} cm thick with 1.4 x 10{sup 16} cm{sup -2}. With increasing time, space charge reduces the E-field and so the avalanching decreases. Wit… more
Date: May 23, 2003
Creator: Lauer, E
Partner: UNT Libraries Government Documents Department
open access

DNA Compaction by Yeast Mitochondrial Protein ABF2p

Description: We used high resolution Atomic Force Microscopy (AFM) to image compaction of linear and circular DNA by the yeast mitochondrial protein ABF2p , which plays a major role in maintaining mitochondrial DNA. AFM images show that protein binding induces drastic bends in the DNA backbone for both linear and circular DNA. At high concentration of ABF2p DNA collapses into a tight globular structure. We quantified the compaction of linear DNA by measuring the end-to-end distance of the DNA molecule at in… more
Date: May 9, 2003
Creator: Friddle, R W; Klare, J E; Noy, A; Corzett, M; Balhorn, R; Baskin, R J et al.
Partner: UNT Libraries Government Documents Department
open access

Guidelines for the Performance of Nonproliferation Assessments

Description: The National Nuclear Security Administration (NNSA) established a Nonproliferation Assessment Methodology (NPAM) Working Group, comprised of representatives from the Department of Energy (DOE) laboratories and academia, to develop guidelines for the practical application of Nonproliferation Assessment Methodologies (NPAM). The purpose of these methodologies is to address questions and issues related to the proliferation of nuclear weapons and weapons-useable nuclear materials and related techno… more
Date: May 29, 2003
Creator: Mladineo, Stephen V.; Denning, Richard S.; Roglans-Ribas, Jordi; Bari, Robert A.; Eagle, James; Olinger, Chad T. et al.
Partner: UNT Libraries Government Documents Department
open access

smesh User's Guide

Description: ''smesh'' is a general purpose, interactive, 2D unstructured mesh generator based on Overture. It supports three kinds of mesh generation techniques: structured patches with transfinite interpolation (TFI); unstructured triangles based on an advancing front technique; and a Cartesian cutcell/triangle hybrid method. Meshes are generated in a generalized ''multi-block'' manner where each ''block'', or region, can be one of the three mesh types. Geometry definitions can be created interactively by… more
Date: May 5, 2003
Creator: Chand, K. K.
Partner: UNT Libraries Government Documents Department
open access

Impact of Biodiesel Fuels on Air Quality and Human Health: Task 2 Report; The Impact of Biodiesel Fuels on Ozone Concentrations

Description: This report documents Task 2 of the NREL study"Impact of Biodiesel Fuels on Air Quality and Hyman Health". Under Task 1, engine test data using biodiesel and standard diesel fuels were analyzed to estimate the effects biodiesel fuel has on heavy duty diesel vehicle tailpipe emissions.
Date: May 1, 2003
Creator: Morris, R. E.; Mansell, G. E.; Jia, Y. & Wilson, G.
Partner: UNT Libraries Government Documents Department
open access

Efficiency Issues in Parallel Coarsening Schemes

Description: Various options for sequential, shared memory and distributed memory implementations for the CLJP algorithm, a parallel coarsening scheme within algebraic multigrid, are discussed. The use of different data structures as well as different approaches of implementing the actual algorithm are investigated, and experimental results illustrating the results are presented.
Date: May 2, 2003
Creator: Gallivan, K A & Yang, U M
Partner: UNT Libraries Government Documents Department
open access

Impact of Biodiesel Fuels on Air Quality and Human Health: Task 5 Report; Air Toxics Modeling of the Effects of Biodiesel Fuel Use on Human Health in the South Coast Air Basin Region of Southern California

Description: This document is the Task 5 report for the NREL study"Impacts of Biodiesel Fuels on Air Quality and Human Health" study. The objective of Task 5 is to estimate the effects of the use of biodiesel fuels on air toxics and resultant risk, exposure, and human health.
Date: May 1, 2003
Creator: Morris, R. E. & Jia, Y.
Partner: UNT Libraries Government Documents Department
open access

Advanced CIGS Photovoltaic Technology: Annual Technical Report, 15 November 2001-14 November 2002

Description: Energy Photovoltaics, Inc. (EPV) has consistently pursued a vacuum-based approach to CIGS production, using novel linear-source technology and standard soda-lime glass substrates. It has also chosen to develop processing methods with worker safety in mind. These choices result in layers having controllable purity and low physical defects, and production without significant hazards. Considerations such as these are important in helping to minimize the processing costs of CIGS. Technically, thin-… more
Date: May 1, 2003
Creator: Delahoy, A. E. & Chen, L.
Partner: UNT Libraries Government Documents Department
open access

Dissolution Kinetics of Titanate-Based Ceramic Waste Forms: Results from Single-Pass Flow Tests on Radiation Damaged Specimens

Description: This report is a summary report in which the data from the single-pass flow-through test on resintered 238Pu-bearing ceramics are reported. These results show that radiation damage has litte effect on the dissolution kinetics of candidate titanate ceramics for plutonium immobilization.
Date: May 1, 2003
Creator: Icenhower, Jonathan P.; Strachan, Denis M.; Lindberg, Michael J.; Rodriguez, Elsa A. & Steele, Jackie L.
Partner: UNT Libraries Government Documents Department
open access

Effects of Self Irradiation from 238Pu on Candidate Ceramics for Plutonium Immobilization

Description: In this document, we describe the results of radiation damage testing and characterization for specimens that were resintered to re-establish crystallinity. The phases in these specimens have become amorphous from radiation induced damage over the 8 months since sintering.
Date: May 30, 2003
Creator: Strachan, Denis M.; Scheele, Randall D.; Kozelisky, Anne E. & Sell, Rachel L.
Partner: UNT Libraries Government Documents Department
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