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Food and Drug Administration: Status of Actions to Address Property Control Weaknesses

Description: Correspondence issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO followed up on the Food and Drug Administration's (FDA) efforts to implement GAO's recommendations addressing FDA's property control weaknesses."
Date: August 10, 1999
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

High Resolution Diagnostics of a Linear Shaped Charge Jet

Description: The linear shaped charge is designed to produce a knife blade-like flat jet, which will perforate and sever one side of a modestly hard target from the other. This charge is approximately plane wave initiated and used a water pipe quality circular copper liner. To establish the quality of this jet we report about an experiment using several of the Lawrence Livermore National Laboratory high-resolution diagnostics previously published in this meeting [1]. Image converter tube camera stereo image… more
Date: August 10, 1999
Creator: Chase, J. B.; Kuklo, R. M.; Shaw, L. L.; Carter, D. L. & Baum, D. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Copper Wetting of x-Al(2)O(3)(0001): Theory and Experiment

Description: XPS studies have been carried out on sputter deposited copper on a substantially hydroxylated {alpha}-Al{sub 2}O{sub 3}(0001) (sapphire) surface under ultra-high vacuum (UHV) conditions. XPS-derived Cu uptake curves show a sharp change in slope at a coverage of 0.35 monolayer (on a Cu/O atomic basis), indicative of initial layer-by-layer growth. CU(LMM) lineshape data indicate that, prior to the first break in the curve, Cu is oxidized to Cu(I). At higher coverages, metallic CU(0) is. observed.… more
Date: August 10, 1999
Creator: Bogicevic, A.; Jennison, D. R.; Kelber, J. A.; Niu, Chengyu & Shepherd, K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Structure-Dependent Viscoelastic Properties of C(9)-Alkanethiol Monolayers

Description: Quartz crystal microbalance techniques and in situ spectroscopic ellipsometry are used to probe the structure-dependent intrinsic viscoelastic properties of self-assembled CH{sub 3}(CH{sub 2}){sub 8}SH alkanethiol monolayer adsorbed from the gas phase onto Au(111)-textured substrates. Physisorbed molecules, mixed chemisorbed-fluid/solid phases and solid-phase domain boundaries make sequentially dominant contributions to the measured energy dissipation in the growing monolayer. Deviations from L… more
Date: August 10, 1999
Creator: Mayer, Thomas M.; Michalske, Terry A. & Shinn, Neal D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Analysis of Ignition Testing on K-West Basin Fuel

Description: Approximately 2100 metric tons of spent nuclear fuel (SNF) discharged from the N-Reactor have been stored underwater at the K-Basins in the 100 Area of the Hanford Site. The spent fuel has been stored in the K-East Basin since 1975 and in the K-West Basin since 1981. Some of the SNF elements in these basins have corroded because of various breaches in the Zircaloy cladding that occurred during fuel discharge operations and/or subsequent handling and storage in the basins. Consequently, radioact… more
Date: August 10, 1999
Creator: Abrefah, J.; Huang, F.H.; Gerry, W.M.; Gray, W.J.; Marschman, S.C. & Thornton, T.A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Stabilization of lead-rich low-level mixed wastes in chemically bonded phosphate ceramic.

Description: A chemically bonded magnesium potassium phosphate ceramic has been developed by an acid-base reaction at room temperature, for use in stabilizing U.S. Department of Energy low-level mixed waste streams that include hazardous metals and low-level radioactive elements. Using this ceramic, we solidified, in monolithic waste forms, low-level mixed waste streams containing various levels of PbCl{sub 2} and PbCO{sub 3}. These final waste forms were evaluated for their land disposal suitability. The r… more
Date: August 10, 1999
Creator: Jeong, S.-Y.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

ATLAS 10 GHz ECR ions source upgrade project.

Description: A major upgrade of the first ATLAS 10 GHz ECR ion source, which began operations in 1987, is in the planning and procurement phase. The new design will convert the old two-stage source into a single-stage source with an electron donor disk and high gradient magnetic field that preserves radial access for solid material feeds and pumping of the plasma chamber. The new magnetic field profile allows for the possibility of a second ECR zone at a frequency of 14 GHz. An open hexapole configuration, … more
Date: August 10, 1999
Creator: Moehs, D. P.; Pardo, R. C.; Vondrasek, R. & Xie, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Alternatives to conventional diesel fuel-some potential implications of California's TAC decision on diesel particulate.

Description: Limitations on the use of petroleum-based diesel fuel in California could occur pursuant to the 1998 declaration by California's Air Resources Board (CARB) that the particulate matter component of diesel exhaust is a carcinogen, therefore a toxic air contaminant (TAC) subject to provisions of the state's Proposition 65. It is the declared intention of CARB not to ban or restrict diesel fuel, per se, at this time. Assuming no total ban, Argonne National Laboratory (ANL) explored two feasible ''m… more
Date: August 10, 1999
Creator: Eberhardt, J. J.; Rote, D. M.; Saricks, C. L. & Stodolsky, F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Hairpin vortex formation, a case study for unsteady visualization.

Description: To better understand the vortex dynamics of coherent structures in turbulent and transitional boundary layers, we consider direct numerical simulation of the interaction between a flat-plateboundary-layer flow and an isolated hemispherical roughness element. Of principal interest is the evolution of hairpin vortices that form an interlacing pattern in the wake of the hemisphere, lift away from the wall, and are stretched by the shearing action of the boundary layer. Using animations of unsteady… more
Date: August 10, 1999
Creator: Fischer, P. F.; Papka, M. E.; Szymanski, M. & Tufo, H. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

High-dielectric-constant ferroelectric thin film and bulk ceramic capacitors for power electronics.

Description: Significant effort is presently focused on reducing the size and weight of power electronic modules. To achieve these goals in high-power capacitors, alternative materials and fabrication processes are needed. Thin film (<0.5 {micro}m) and bulk capacitors that use perovskite-based ferroelectric dielectrics are promising alternative technologies. Ferroelectrics possess high dielectric constants, thus offering substantial increases in volumetric capacitance. In thin film form, these materials … more
Date: August 10, 1999
Creator: Auciello, O. H.; Baldo, P.; Baumann, P.; Erck, R. A.; Giumarra, J.; Im, J. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

The measurement of the mass of the W boson from the Tevatron.

Description: This paper presents measurements of the mass of the W vector boson from the CDF and D0 experiments using data collected at {radical}s = 1.8 TeV during the 1994-1995 data taking run. CDF finds a preliminary mass of M{sub W} = 80.43 {+-} 0.16 GeV and D0 measures a mass of M{sub W} = 80.44 {+-} 0.12 GeV.
Date: August 10, 1999
Creator: Thurman-Keup, R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Electric Power and the Year 2000 Computer Problem

Description: The North American Electric Reliability Council (NERC) at the request of the Department of Energy is coordinating an effort to minimize the vulnerability of the nation's electric utility system to disruption resulting from computer failures as the date changes to January 1, 2000, the so-called Y2K computer problem. NERC now believes that the electric power industry would be able to reliably meet demand during the transition from 1999 to 2000 with the systems that are now Y2K ready. Nevertheless… more
Date: August 10, 1999
Creator: Rowberg, Richard E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Hearings in the House of Representatives: A Guide for Preparation and Conduct

Description: This report covers how House committees plan and conduct hearings; it also reviews post-hearing activities of committees. It discusses applicable rules of the House, rules adopted by individual committees, and common committee practices.
Date: August 10, 1999
Creator: Sachs, Richard C. & Vincent, Carol Hardy
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Analysis of Ignition Testing on K-West Basin Fuel

Description: Ignition tests and analyses of damage/corroded N-Reactor spent nuclear fuel (SNF) were performed by Pacific Northwest National Laboratory as part of a series of studies on the deteriorating spent fuel in the Hanford K-Basins. The ignition temperature tests were conducted to assess tie pyrophoric properties of selected spent fuel elements from K-West Basin. The objective of these tests was to determine pyrophoric characteristics of samples cut from both damaged and undamaged regions of fhel elem… more
Date: August 10, 1999
Creator: Abrefah, John; Huang, Fan-Hsiung F.; Gerry, William M.; Gray, Walter J.; Marschman, Steven C. & Thornton, Thomas A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Using Short Pulse Lasers to Address Frontiers in High Pressure Physics

Description: Having laser intensities of 10{sup 21} W/cm{sup 2} yield electrical field strengths of 10{sup 12} V/cm which is comparable to the field strength at the K-shell of neon. Instant field ionization becomes part of the laser-matter interaction allowing to transfer most of the photons momenta directly onto the ions by driving an electrostatic shock through the target equivalent to pressures of several 100 Gbar. Utilization of these high-pressure conditions in form of equation of state measurements, h… more
Date: August 10, 1999
Creator: Wildmann, K.; Springer, P. T.; Cauble, R.; Foord, M. E.; Guethlein, G.; Ng, A. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

An analytical calculation of the axial density profile for 1-d slab expansion

Description: Obtaining an analytical expression for the axial density profile can provide us with a quick and convenient way to evaluate the density evolution for targets with different densities and dimensions. In this note, we show that such an analytical expression can be obtained based on the self-similar solutions and the method of characteristics for 1-D slab expansion.
Date: August 10, 1999
Creator: Ho, D
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Production of {phi} mesons in Au-Au collisions at the AGS.

Description: The first measurements of {phi} meson production in Au-Au collisions at AGS energies are presented via the decay to K{sup +} K{sup {minus}}. A measurement of the centrality dependence of the yield shows an increase similar to that seen for the K{sup {minus}} with a spectral shape consistent with a relativistic Breit-Wigner distribution within the statistical errors of the present data set. Future analysis using the full data set with 4 times the statistics will allow a more accurate determinati… more
Date: August 10, 1999
Creator: Back, B. B.; Betts, R. R.; Chang, J.; Collaboration, E917; Gillitzer, A.; Henning, W. F. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Mesoporous synthetic clays : synthesis, characterization, and use as HDS catalyst supports.

Description: Mesoporous synthetic clays (MSCs) are obtained when polymer-containing silicate gels are hydrothermally crystallized to form layered magnesium silicate hectorite clays containing polymers that are incorporated in situ. Polyvinylpyrrolidone of several average molecular weights ranging from 10K to 1.3M, in gel loadings varying from 5-30 wt%, were used. The organic polymer template molecules were removed from synthetic polymer-clay complexes via calcination. Pore radii, surface areas, and pore vol… more
Date: August 10, 1999
Creator: Bloomquist, C. A. A.; Carrado, K. A.; Marshall, C. L.; Seifert, S.; Wei, D. & Xu, L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

DOE Automotive Composite Materials Research: Present and Future Efforts

Description: One method of increasing automotive energy efficiency is through mass reduction of structural components by the incorporation of composite materials. Significant use of glass reinforced polymers as structural components could yield a 20--30% reduction in vehicle weight while the use of carbon fiber reinforced materials could yield a 40--60% reduction in mass. Specific areas of research for lightweighting automotive components are listed, along with research needs for each of these categories: (… more
Date: August 10, 1999
Creator: Warren, C.D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Proposed plan for remedial action for the Groundwater Operable Unit at the Chemical Plant Area of the Weldon Spring Site, Weldon Spring, Missouri

Description: This Proposed Plan addresses the remediation of groundwater contamination at the chemical plant area of the Weldon Spring site in Weldon Spring, Missouri. The site is located approximately 48 km (30 mi) west of St. Louis in St. Charles County . Remedial activities at the site will be conducted in accordance with the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA). The U.S. Department of Energy (DOE), in conjunction with the U.S. Department of the Army (DA), conduc… more
Date: August 10, 1999
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Advanced Technology Program

Description: The Advanced Technology Program (ATP) was created by P.L. 100-418, the Omnibus Trade and Competitiveness Act of 1988, to encourage public-private cooperation in the development of pre-competitive technologies with broad application across industries. This activity has been targeted for elimination as a means to cut federal spending. This report discusses the ATP and related issues of federal appropriations (or the lack thereof).
Date: August 10, 1999
Creator: Schacht, Wendy H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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