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Defense Acquisitions: Reduced Threat Not Reflected in Antiarmor Weapon Acquisitions

Description: A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed the Department of Defense's (DOD) antiarmor master plan, focusing on: (1) changes in armored threats from 1990 to 1997; (2) comparing the number and makeup of the 1990 antiarmor weapon inventory with those of the 1998 inventory; and (3) funding trends of past and future antiarmor procurements."
Date: July 22, 1999
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Federal Land Management: Comments on Selected Provisions of S. 1320--A Bill to Revise Federal Land Management Planning

Description: Testimony issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO discussed the planning-related provisions of titles I and II of S. 1320--the Public Lands Planning and Management Improvement Act of 1999, focusing on the: (1) statutory basis for the Forest Service's mission priorities; (2) clarity of the mission statement in S. 1320; and (3) extent to which the bill addresses identified planning deficiencies."
Date: July 22, 1999
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

IRS Management: Formidable Challenges Confront IRS as It Attempts to Modernize

Description: Testimony issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO discussed the Internal Revenue Service's (IRS) efforts to implement the IRS Restructuring and Reform Act of 1998, focusing on IRS': (1) reorganization processes; (2) performance management system; and (3) systems modernization efforts."
Date: July 22, 1999
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

Illegal Aliens: Fraudulent Documents Undermining the Effectiveness of the Employment Verification System

Description: Testimony issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO discussed the impact of fraudulent documents on the effectiveness of the employment verification system established by the Immigration Reform and Control Act of 1986 and efforts to reduce such fraudulent use."
Date: July 22, 1999
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

VA Health Care: Challenges Facing VA in Developing an Asset Realignment Process

Description: Testimony issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO discussed the utilization of health care assets owned by the Department of Veterans' Affairs and operated by the Veterans Health Administration (VHA), focusing on: (1) VHA's hospital utilization; and (2) efforts to implement an asset realignment process."
Date: July 22, 1999
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

Department of Energy: Uncertain Future for External Regulation of Worker and Nuclear Facility Safety

Description: Testimony issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO discussed the Department of Energy's (DOE) progress toward the external regulation of nuclear and worker safety at its facilities, focusing on: (1) DOE's changing positions on the desirability of external regulation for its facilities; (2) the disagreement between DOE and the Nuclear Regulatory Commission (NRC) on the potential costs and value added of external regulation; an… more
Date: July 22, 1999
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Text
Partner: UNT Libraries Government Documents Department
open access

Coupled Resonator Vertical Cavity Laser Diodes

Description: For many applications, the device performance of edge emitting semiconductor lasers can be significantly improved through the use of multiple section devices. For example, cleaved coupled cavity (C3) lasers have been shown to provide single mode operation, wavelength tuning, high speed switching, as well as the generation of short pulses via mode-locking and Q-switching [1]. Using composite resonators within a vertical cavity laser opens up new possibilities due to the unique ability to tailor … more
Date: July 22, 1999
Creator: Choquette, K. D.; Chow, W. W.; Fischer, A. J.; Allerman, A. A.; Hou, H. Q. & Geib, K. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

The level 1 central tracking trigger for the D-Zero upgrade

Description: The D0 level 1 tracking trigger uses data from the scintillating fiber tracker, the central and forward preshower detectors, the muon system and the calorimeter. Tracks are found in the scintillating fiber tracker with transverse momentum greater than 1.5 GeV/c. The tracks are then sent to the central preshower detector for electron tagging and to the muon system for muon tagging. Preshower clusters are also used for identifying photon candidates. These multi detector triggers are then sent to … more
Date: July 22, 1999
Creator: F. Borcherding, S. Grunendahl, M. Johnson, K. Yip
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

CDFVME -- Software framework for testing VME boards

Description: New VME based boards are being produced for the Run II of the Collider Detector at Fermilab (CDF). These boards are being developed and tested at both Fermilab and offsite institutions. A software framework called CDFVME has been developed in which DAQ code can be easily written to control such boards in a test stand. The framework has been used to perform diagnostics at single board, multi-board, and multi-crate levels. This software framework runs on Unix, Linux and Windows NT platforms with … more
Date: July 22, 1999
Creator: Gay, C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

High Accuracy, High Energy He-Erd Analysis of H,C, and T

Description: A new analysis technique using high-energy helium ions for the simultaneous elastic recoil detection of all three hydrogen isotopes in metal hydride systems extending to depths of several {micro}m's is presented. Analysis shows that it is possible to separate each hydrogen isotope in a heavy matrix such as erbium to depths of 5 {micro}m using incident 11.48MeV {sup 4}He{sup 2} ions with a detection system composed of a range foil and {Delta}E-E telescope detector. Newly measured cross sections … more
Date: July 22, 1999
Creator: Browning, James F.; Langley, Robert A.; Doyle, Barney L.; Banks, James C. & Wampler, William R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Equation-of-State Measurements with Z-Pinch Sources

Description: Validation of material models in a variety of scientific and technological applications requires accurate data regarding the high-pressure thermodynamic and mechanical properties. Traditional laboratory techniques for striking these measurements involve light gas guns to generate the required thermodynamic states, and the use of high-resolution time-resolved diagnostics to measure the desired material properties. EOS and constitutive material properties of importance to modeling needs include h… more
Date: July 22, 1999
Creator: Asay, J. R.; Hall, C.; Bailey, J. E.; Knudson, M. D.; Holland, K. G.; Hanson, D. L. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Quarterly review of 241-SY-101 mixer pump data: January - March 1999

Description: This report presents data obtained on 241-SY-101 pump performance. The period covered is January 1 through March 31, 1999. During the quarter: There were changes in pumping parameters. Both the pump volute pressure and amperage decreased during the quarter. It is not clear whether this was due to changes in waste properties (due to less solids or more entrained gas) or due to degradation of the pump. There was an indication of a 7.5-inch increase in the waste level at riser 1 A, and an average … more
Date: July 22, 1999
Creator: CONNER, J.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Ion Beam Induced Charge Collection (IBICC) Studies of Cadmium Zinc Telluride (CZT) Radiation Detectors

Description: Cadmium Zinc Telluride is an emerging material for room temperature radiation detectors. In order to optimize the performance of these detectors, it is important to determine how the electronic properties of CZT are related to the presence of impurities and defects that are introduced during the crystal growth and detector fabrication. At the Sandia microbeam facility IBICC and Time Resolved IBICC (TRIBICC) were used to image electronic properties of various CZT detectors. Two-dimensional areal… more
Date: July 22, 1999
Creator: Doyle, B.L.; Vizkelethy, G. & Walsh, D.S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Use of the Known-M Method for NDA of Plutonium Scrap

Description: 'Plutonium scrap from another Department of Energy site is to be converted at Savannah River Site (SRS) to a form for permanent storage. For accountability and criticality safety, the material must be measured at SRS, and handling restrictions require assay in 9975 shipping drums. A Multiplicity Neutron Counter is available to perform the measurements, but requires about 12 hours per assay, too long to support the measurement schedule. The assay time has been reduced to 2 hours by use of the Kn… more
Date: July 22, 1999
Creator: Thompson, R.S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Parallel-Plate Electrostatic Dual Mass Oscillator

Description: A surface-micromachined two-degree-of-freedom system that was driven by parallel-plate actuation at antiresonance was demonstrated. The system consisted of an absorbing mass connected by folded springs to a drive mass. The system demonstrated substantial motion amplification at antiresonance. The absorber mass amplitudes were 0.8-0.85 pm at atmospheric pressure while the drive mass amplitudes were below 0.1 pm. Larger absorber mass amplitudes were not possible because of spring softening in the… more
Date: July 22, 1999
Creator: Allen, James J.; Dyck, Christopher W. & Huber, Robert J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Radiation monitoring for vertex detectors at the Tevatron

Description: I present an overview of radiation monitoring for vertex detectors and the abort system for the Fermilab Tevatron. Details on the detectors, inputs, and measurements for the Run 1 time period are provided. Plans for the monitoring during Run 2 are discussed. The measurements imply an approximately even mix of radiation from beam-beam collisions and beam losses.
Date: July 22, 1999
Creator: Derwent, P.F.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Solid Freeform Fabrication Using the Wirefeed Process

Description: Direct metal deposition technologies produce complex, near net shape components from CAD solid models. Most of these techniques fabricate a component by melting powder in a laser weld pool, rastering this weld bead to form a layer, and additively constructing subsequent layers. This talk describes a new direct metal deposition process, known as WireFeed, whereby a small diameter wire is used instead of powder as the feed material to fabricate components. Currently, parts are being fabricated fr… more
Date: July 22, 1999
Creator: Buchheit, T. E.; Crenshaw, T. B.; Ensz, M. T.; Greene, D. L.; Griffith, M. L.; Harwell, L. D. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Design of Experiments to Estimate Temperature Dependent Thermal Properties

Description: Experimental conditions are studied to optimize transient experiments for estimating temperature dependent thermal conductivity and volumetric heat capacity. Thermal properties are assumed to vary linearly with temperature; a total of four parameters describe linearly varying thermal conductivity and volumetric heat capacity. A numerical model of experimental configurations is studied to determine the optimum conditions to conduct the experiment. The criterion D-optimality is used to study the … more
Date: July 22, 1999
Creator: Blackwell, B. F. & Dowding, K. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

DEVELOPMENT OF PRECIPITATED IRON FISCHER-TROPSCH CATALYSTS

Description: Despite the current worldwide oil glut, the US will ultimately require large-scale production of liquid (transportation) fuels from coal. Slurry phase Fischer-Tropsch (F-T) technology, with its versatile product slate, may be expected to play a major role in production of transportation fuels via indirect coal liquefaction. Some of the F-T catalysts synthesized and tested at Texas A and M University under DOE Contract No. DE-AC22-89PC89868 were more active than any other known catalysts develop… more
Date: July 22, 1999
Creator: Bukur, Dragomir B.; Lang, X.; Chokkaram, S.; Nowicki, L.; Wei, G.; Ding, Y. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

HIGH RESOLUTION MICROTOMOGRAPHY FOR DENSITY AND SPATIAL INFORMATION ABOUT WOOD STRUCTURES.

Description: Microtomography has successfully been used to characterize loss of structural integrity of wood. Tomographic images were generated with the newly developed third generation x-ray computed microtomography (XCMT) instrument at the X27A beamline at the National Synchrotron Light Source (NSLS). The beamline is equipped with high-flux x-ray monochromator based on multilayer optics developed for this application. The sample is mounted on a translation stage with which to center the sample rotation, a… more
Date: July 22, 1999
Creator: ILLMAN,B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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