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Information Systems: The Status of Computer Security at the Department of Veterans Affairs

Description: A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a legislative requirement, GAO reported on the status of computer security throughout the Department of Veterans Affairs (VA)."
Date: October 4, 1999
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Financial Management Service: Significant Weaknesses in Computer Controls

Description: A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a legislative requirement, GAO provided information on the general and application computer controls over key financial systems maintained and operated by the Financial Management Service (FMS), focusing on the results of GAO's fiscal year (FY) 1998 tests of the effectiveness of general and application controls that support key FMS automated financial systems and GAO's follow up on the status of FM… more
Date: October 4, 1999
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

DOD Competitive Sourcing: Plan Needed to Mitigate Risks in Army Logistics Modernization Program

Description: A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed the Army's decision to contract for its Wholesale Logistics Modernization Program."
Date: October 4, 1999
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Biofuels: A Solution for Climate Change

Description: Our lives are linked to weather and climate, and to energy use. Since the late 1970s, the U.S. Department of Energy (DOE) has invested in research and technology related to global climate change. DOE's Office Fuels Development (OFD) manages the National Biofuels Program and is the lead technical advisor on the development of biofuels technologies in the United States. Together with industry and other stakeholders, the program seeks to establish a major biofuels industry. Its goals are to develo… more
Date: October 4, 1999
Creator: Woodward, S.
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

Cesium Removal from the Fuel Storage Water at the Savannah River Site R-Building Disassembly Basin Using 3M Empore(r)-Membrane Filter Technology

Description: This report describes results from a seven-day demonstration of the use of 3M Empore(r) membrane filter loaded with ion exchange material potassium cobalt hexacynoferrate (CoHex) for cesium uptake from the R-Disassembly Basin at the Savannah River Site.
Date: October 4, 1999
Creator: Oji, L.N.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Phase II Nuclide Partition Laboratory Study Influence of Cellulose Degradation Products on the Transport of Nuclides from SRS Shallow Land Burial Facilities

Description: Degradation products of cellulosic materials (e.g., paper and wood products) can significantly influence the subsurface transport of metals and radionuclides. Codisposal of radionuclides with cellulosic materials in the E-Area slit trenches at the Savannah River Site (SRS) is, therefore, expected to influence nuclide fate and transport in the subsurface. Due to the complexities of these systems and the scarcity of site-specific data, the effects of cellulose waste loading and its subsequent inf… more
Date: October 4, 1999
Creator: Serkiz, S.M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A LOW-COST I/O CONCENTRATION USING THE CAN FIELDBUS.

Description: The I/O channels of the control system of the LHC experiments are distributed over the whole detector volume with distances of up to 100 meters. Special requirements on the I/O system arise due to the inaccessibility of the equipment and the hostile environment due to radiation and magnetic field. A general purpose I/O system based on the fieldbus CAN and using the CANopen software protocol has been developed using standard electronic components. Each of these distributed fieldbus nodes can mon… more
Date: October 4, 1999
Creator: TAKAI,H. HALLGREN,B. BAEHLER,P. BURCKHART,H. J. FILIMONOV,V. ET AL.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Modeling and Simulation of Microstructural Development During Weld Solidification

Description: Techniques for numerical calculations of phase transformation kinetics have recently become available. These methods are integrated with computational thermodynamics to allow for the description of diffusion-controlled transformations as a function of time. Such calculations have been applied to the modeling of solidification behavior in the current study. Three examples are considered which relate to the prediction of microstructure development and solute redistribution during conditions corre… more
Date: October 4, 1999
Creator: Vitek, J.M. & David, S.A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Report on the Study of Radiation Damage in Calcium Fluoride and Magnesium Fluoride Crystals for use in Excimer Laser Applications

Description: A study was performed to investigate the effects of radiation damage in calcium fluoride and magnesium fluoride crystals caused by gamma rays and UV photons from excimer lasers. The purpose was to study and correlate the damage caused by these two different mechanisms in various types of material used for fabricating optical elements in high power excimer lasers and lens systems of lithography tools. These optical systems are easily damaged by the laser itself, and it is necessary to use only t… more
Date: October 4, 1999
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Turbulence Structure and Implications for Dispersion: Insights from Large-Eddy Simulations

Description: We have presented two flows where detailed knowledge of the fluid mechanics would appear to be crucial for accurate dispersion modeling. We expect that Large-eddy simulations (LES) will complement traditional dispersion modeling by providing both the ability to discern between cases where traditional models work well and cases where more complicated characterizations are necessary, and a method to investigate potentially unique flow features and turbulence structure for specific flow problems.
Date: October 4, 1999
Creator: Calhoun, R; Cederwall, R & Street, R
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

A MEASUREMENT TECHNIQUE FOR HYDROXYACETONE.

Description: Hydroxyacetone (HA) is mainly produced in the atmosphere from oxidation of hydrocarbons of the type, CH{sub 3}(R)C=CH{sub 2}. Tuazon and Atkinson (1990) reported HA yield of 41% from the OH-initiated oxidation of methacrolein in the presence of NO{sub x}. Since methacrolein is a major product of isoprene oxidation (Carter and Atkinson, 1996), isoprene, a key biogenic hydrocarbon, is therefore expected to be an important source for HA. Consequently, knowledge of ambient concentration of HA would… more
Date: October 4, 1999
Creator: KLOTZ,P.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

A measurement technique for hydroxyacetone

Description: Hydroxyacetone (HA) is mainly produced in the atmosphere from oxidation of hydrocarbons of the type, CH{sub 3}(R)C{double{underscore}bond}CH{sub 2}. Tuazon and Atkinson (1990) reported HA yield of 41% from the OH-initiated oxidation of methacrolein in the presence of NOx. Since methacrolein is a major product of isoprene oxidation (Carter and Atkinson, 1996), isoprene, a key biogenic hydrocarbon, is therefore expected to be an important source for HA. Consequently, knowledge of ambient concentr… more
Date: October 4, 1999
Creator: Klotz, P. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Providing Meteorological Information for Controlled Burns at the Savannah River Site

Description: Regional and local weather information are important for a variety of applications at the Savannah River Site (SRS), a Department of Energy (DOE) facility covering approximately 800 square kilometers of southwest South Carolina east of the Savannah River. For example, meteorological observations and forecasts are used to assess the consequences of an accidental radiological or chemical release. Traditionally, hazards posed by SRS operations have been associated with nuclear reactors, chemical r… more
Date: October 4, 1999
Creator: Buckley, R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Test Plan for Effect of Phase Separation on Optimization of Waste Loading in High-Level Waste

Description: Several types of phase transformations can occur in glass. The most commonly occurring phase transformations are crystallization and/or liquid-liquid phase separation. Crystallization is the growth of a crystalline phase(s) which may or may not have the same composition as the original liquid.
Date: October 4, 1999
Creator: Jantzen, Carol M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Photovoltaic and solar-thermal technologies in residential building codes, tackling building code requirements to overcome the impediments to applying new technologies

Description: This report describes the building code requirements and impediments to applying photovoltaic (PV) and solar-thermal technologies in residential buildings (one- or two-family dwellings). It reviews six modern model building codes that represent the codes to be adopted by most locations in the coming years: International Residential Code, First Draft (IRC), International Energy Conservation Code (IECC), International Mechanical Code (IMC), International Plumbing Code (IPC), International Fuel Ga… more
Date: October 4, 1999
Creator: Wortman, D.; Echo-Hawk, L.; Hayter, S. & Gwinner, D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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