Search Results

open access

Information Technology: DLA Should Strengthen Business Systems Modernization Architecture and Investment Activities

Description: A letter report issued by the General Accounting Office with an abstract that begins "The Defense Logistics Agency (DLA) plays a critical role in supporting America's military forces worldwide. DLA employs about 28,000 civilian and military workers at about 500 sites in all 50 states and 28 countries; in round numbers, it manages 4 million supply items and processes 30 million annual supply distribution actions. This report reviews DLA's efficiency and effectiveness in managing it is Business S… more
Date: June 4, 2001
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department
open access

Federal Research and Development: Contributions to and Results of the Small Business Technology Transfer Program

Description: Correspondence issued by the General Accounting Office with an abstract that begins "Research and development are major factors in the growth and progress of industry and the national economy. However, basic research done by the nation's research institutions--universities and colleges, federal laboratories, and nonprofit research centers--may not translate into marketable technologies. To link the ideas and resources of the research institutions with the commercialization experience of small b… more
Date: June 4, 2001
Creator: United States. General Accounting Office.
Partner: UNT Libraries Government Documents Department
open access

The Need for a Biotechnology Revolution Focused on Energy and Climate Change

Description: This paper utilizes the Pacific Northwest National Laboratory?s Integrated Assessment modeling tools to draw out concepts that should be considered when examining purpose-grown biomass as a low-emissions energy source and/or as a key technology for addressing climate change. The paper concludes that using biomass as a significant element of our future energy system will be an enormous undertaking that will transform the global energy and agricultural system. Further, large-scale biomass energy … more
Date: June 4, 2001
Creator: Dooley, James J.
Partner: UNT Libraries Government Documents Department
open access

Radiation tests of the EMU spacesuit for the International SpaceStation using energetic protons

Description: Measurements using silicon detectors to characterize theradiation transmitted through the EMU spacesuit and a human phantom havebeen performed using 155 and 250 MeV proton beams at the Loma LindaUniversity Medical Center (LLUMC). The beams simulate radiationencountered in space, where trapped protons having kinetic energies onthe order of 100 MeV are copious. Protons with 100 MeV kinetic energy andabove can penetrate many centimeters of water of other light materials,so that astronauts exposed … more
Date: June 4, 2001
Creator: Zeitlin, C.; Heilbronn, L.; Miller, J. & Shavers, M.
Partner: UNT Libraries Government Documents Department
open access

The LLNL High Accuracy Volume Renderer for Unstructured Data: Capabilities, Current Limits, and Potential for ASCI/VIEWS Deployment

Description: This report describes a volume rendering system for unstructured data, especially finite element data, that creates images with very high accuracy. The system will currently handle meshes whose cells are either linear or quadratic tetrahedra, or meshes with mixed cell types: tetrahedra, bricks, prisms, and pyramids. The cells may have nonplanar facets. Whenever possible, exact mathematical solutions for the radiance integrals and for interpolation are used. Accurate semitransparent shaded isosu… more
Date: June 4, 2001
Creator: Williams, P L & Max, N L
Partner: UNT Libraries Government Documents Department
open access

High Reflectivity of Silver Extended Down to 200 NM

Description: Silver has the highest reflectance of all of the metals, but it tarnishes in the presence of sulfides, chlorides, and oxides in the atmosphere. Also, the silver reflectance is very low at wavelengths below 400 nm making aluminum more desirable mirror coating for the W region. We have found a way to prevent silver tarnishing by sandwiching the silver layer between two thin layers of NiCrN{sub x}, and to extend the metal's high reflectance down to 200 nm by depositing the (thin) Ag layer on top o… more
Date: June 4, 2001
Creator: Thomas, N L & Wolfe, J D
Partner: UNT Libraries Government Documents Department
open access

An Improvement to DCPT: The Particle Transfer Probability as a Function of Particle's Age

Description: Multi-scale features of transport processes in fractured porous media make numerical modeling a difficult task of both conceptualization and computation. Dual-continuum particle tracker (DCPT) is an attractive method for modeling large-scale problems typically encountered in the field, such as those in unsaturated zone (UZ) of Yucca Mountain, Nevada. The major advantage is its capability to capture the major features of flow and transport in fractured porous rock (i-e., a fast fracture sub-syst… more
Date: June 4, 2001
Creator: Pan, L. & Bodvarsson, G. S.
Partner: UNT Libraries Government Documents Department
open access

Proof-of-Concept of the Phytoimmobilization Technology for TNX Outfall Delta: Final Report

Description: A series of proof-of-principle studies was initiated to evaluate the soil remediation technology, phytoimmobilization, for application at the TNX Outfall Delta (TNX OD) operable unit. Phytoimmobilization involves two steps. The first step is entitled phytoextraction, and it takes place mostly during the spring and summer. During this step the plants extract contaminants from the sediment into the roots and then translocate the contaminants to the aboveground plant parts. The second step is refe… more
Date: June 4, 2001
Creator: Kaplan, D.I.
Partner: UNT Libraries Government Documents Department
open access

Surveillance of site A and plot M - report for 2000.

Description: The results of the environmental surveillance program conducted at Site A/Plot M in the Palos Forest Preserve area for Calendar Year 2000 are presented. Based on the results of the 1976-1978 radiological characterization of the site, a determination was made that a surveillance program be established. The characterization study determined that very low levels of hydrogen-3 (as tritiated water) had migrated form the burial ground and were present in two nearby hand-pumped picnic wells. The curre… more
Date: June 4, 2001
Creator: Golchert, N. W.
Partner: UNT Libraries Government Documents Department
open access

Relativistic Generalization of the Post-Prior Equivalence for Reaction of Composite Particles

Description: In the non-relativistic description of the reaction of composite particles, the reaction matrix is independent of the choice of post or prior forms for the interaction. We generalize this post-prior equivalence to the relativistic reaction of composite particles by using Dirac's constraint dynamics to describe the bound states and the reaction process.
Date: June 4, 2001
Creator: Wong, C.Y.
Partner: UNT Libraries Government Documents Department
open access

Impact of Cooling Rate on the Durability of PHA Glasses

Description: This study was conducted to determine the effect, if any, on the PCT responses of glasses cooled at different rates. Two bounding cooling profiles were used in this study: rapidly quenched and a canister centerline cooling curve. Glasses were selected based on a number of criteria, but mainly to challenge the regions where amorphous phase separation is expected based upon current model predictions. The current DWPF homogeneity constraint, imposed to preclude regions of phase separation, predict… more
Date: June 4, 2001
Creator: Edwards, T. B.
Partner: UNT Libraries Government Documents Department
open access

Rotational Properties of Neutron Drip-Line Nuclei

Description: Very little is known about the structure of neutron-rich, weakly bound nuclei. Even less is known about the way they rotate. In this work, the high-spin behavior of deformed neutron-rich nuclei is studied. In particular, quasi-particle Routhian spectra of heavy Er isotopes are discussed within the deformed shell model, and rotational properties and isovector shape deformations of heavy N and Mg isotopes are studied with the self-consistent cranked Skyrme-Hartree-Fock theory.
Date: June 4, 2001
Creator: Nazarewicz, W.
Partner: UNT Libraries Government Documents Department
open access

Interim report on a multi-day test of the caustic-side solvent extraction flowsheet for cesium removal from a simulated SRS tank waste.

Description: A caustic-side solvent extraction (CSSX) process to remove cesium from Savannah River Site (SRS) high-level waste was tested for 71 hours in a 33-stage minicontactor (2-cm centrifugal contactor). This multi-day demonstration used an average SRS simulant for the waste feed. The two key process goals were achieved: (1) the cesium was removed from the waste with decontamination factors greater than 40,000, and (2) the recovered cesium was concentrated by a factor of 15 in dilute nitric acid. These… more
Date: June 4, 2001
Creator: Leonard, R. A.; Aase, S. B.; Arafat, H. A.; Chamberlain, D. B.; Conner, C.; Regalbuto, M. C. et al.
Partner: UNT Libraries Government Documents Department
open access

Mountain-Scale Coupled Thermal-Hydrological-Chemical Processes Around the Potential Nuclear Waste Repository at Yucca Mountain

Description: The objectives of this study were to evaluate the thermal-hydrological-chemical (THC) effects on flow and geochemistry in the unsaturated zone (UZ) at Yucca Mountain at a mountain scale. The major THC processes important in the UZ are (1) mineral precipitation/dissolution affecting flow and transport to and from the potential repository, and (2) changes in the compositions of gas and liquid that may seep into drifts.
Date: June 4, 2001
Creator: Sonnenthal, E.; Haukwa, C. & Spycher, N.
Partner: UNT Libraries Government Documents Department
open access

Impact of Cooling Rate on the Durability of CST Glasses: A Nonproprietary Summary

Description: This report is a modified version of WSRC-TR-2001-00124, Revision 0. Information related to the chemical compositions of the study glasses has been removed from this version. WSRC has submitted a patent application for the frit (designated as BD1) utilized in the study and is limiting the distribution of the details of the compositions of the study glasses to protect its intellectual property rights pending patent clearance.
Date: June 4, 2001
Creator: Edwards, T. B.
Partner: UNT Libraries Government Documents Department
open access

Characterization of Radionuclides for 2H Evaporator Cleaning Transfers to Tank 42

Description: This document contains the characterization methodology for sludge-contaminated waste generated from the 2H Evaporator cleaning transfers to Tank 42, based on process knowledge and available analytical data. The scaling factors developed for Tank 42 in this document supercede those presented in Reference 6, and any other previously developed radionuclide characterizations for Tank 42 sludge-contaminated waste.
Date: June 4, 2001
Creator: O'Bryant, R.F.
Partner: UNT Libraries Government Documents Department
open access

Use and Application of the ARCON96 Dispersion Model at the Y-12 Complex

Description: The Atmospheric Relative Concentrations in Building Wakes computer code (ARCON96) was developed for the U.S. Nuclear Regulatory Commission (NRC) to calculate normalized concentrations in plumes from nuclear power plants at control room air intakes in the vicinity of hypothetical accidental releases. ARCON96 implements a straight-line Gaussian dispersion model with dispersion coefficients that are modified to account for low-wind-speed meander and building wake effects. These two modifications t… more
Date: June 4, 2001
Creator: Walker, D. A.; Lee, D. W. & Miller, R. L.
Partner: UNT Libraries Government Documents Department
open access

Evaluation of Flocculation and Filtration Procedures Applied to WSRC Sludge: A Report from B. Yarar, Colorado School of Mines

Description: This report, addresses fundamentals of flocculation processes shedding light on why WSRC researchers have not been able to report the discovery of a successful flocculant and acceptable filtration rates. It also underscores the importance of applying an optimized flocculation-testing regime, which has not been adopted by these researchers. The final part of the report proposes a research scheme which should lead to a successful choice of flocculants, filtration aids (surfactants) and a filtrati… more
Date: June 4, 2001
Creator: Poirier, M.R.
Partner: UNT Libraries Government Documents Department
open access

QCD Spectroscopy at GSI: Exotica and Charmonia

Description: In this talk the author gives a short summary of the basics of conventional and exotic meson spectroscopy, and consider in particular those issues in the charmonium and charmonium hybrid sectors which can be addressed by a future antiproton facility at GSI.
Date: June 4, 2001
Creator: Barnes, T.
Partner: UNT Libraries Government Documents Department
open access

A Study of the Effects of Gas Well Compressor Noise on Breeding Bird Populations of the Rattlesnake Canyon Habitat Management Area, San Juan County, New Mexico

Description: This report, conducted from May through July 2000, addressed the potential effect of compressor noise on breeding birds in gas-production areas administered by the FFO, specifically in the Rattlesnake Canyon Habitat Management Area northeast of Farmington, New Mexico. The study was designed to quantify and characterize noise output from these compressors and to determine if compressor noise affected bird populations in adjacent habitat during the breeding season.
Date: June 4, 2001
Creator: LaGory, K. E.; Chang, Young-Soo; Chun, K. C.; Reeves, T.; Liebich, R. & Smith, K.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen