UNT Libraries Government Documents Department - 219 Matching Results

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12th Annual ALS Users' Association Meeting

Description: Science took the front seat as 219 Advanced Light Source (ALS) users and staff gathered on Monday and Tuesday, October 18 and 19 for the twelfth annual users' meeting. The bulk of the meeting was dedicated to reports on science at the ALS. Packed into two busy days were 31 invited oral presentations and 80 submitted poster presentations, as well as time to visit 24 vendor booths. The oral sessions were dedicated to environmental science, chemical dynamics, biosciences, magnetic materials, and a… more
Date: December 17, 1999
Creator: Robinson, Arthur L.
Item Type: Refine your search to only Article
open access

Agent Orange: Actions Needed to Improve Communications of Air Force Ranch Hand Study Data and Results

Description: A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO examined the conduct and findings of the Air Force's Ranch Hand study on the long-term health effects of exposure to herbicides, such as Agent Orange, in Vietnam, and assessed the study's impact on determinations of veterans' compensation, focusing on: (1) whether the study's findings and data have been properly and promptly reported and disseminated; (2) the statistica… more
Date: December 17, 1999
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Report
open access

ALARA{trademark} 1146 strippable coating

Description: Strippable or temporary coatings are innovative technologies for decontamination that effectively reduce loose contamination at low cost. These coatings have become a viable option during the deactivation and decommissioning of both US Department of Energy (DOE) and commercial nuclear facilities to remove or fix loose contamination on both vertical and horizontal surfaces. The ALARA{trademark} 1146 strippable coating was demonstrated as part of the Savannah River Site LSDDP and successfully rem… more
Date: December 17, 1999
Creator: Fricke, V.
Item Type: Refine your search to only Report
open access

Appropriations for FY2000: Labor, Health and Human Services, and Education

Description: Appropriations are one part of a complex federal budget process that includes budget resolutions, appropriations (regular, supplemental, and continuing) bills, rescissions, and budget reconciliation bills. This report is a guide to one of the 13 regular appropriations bills that Congress passes each year. It is designed to supplement the information provided by the House and Senate Appropriations Subcommittees on Labor, Health and Human Services, and Education.
Date: December 17, 1999
Creator: Irwin, Paul M.
Item Type: Refine your search to only Report
open access

Border Patrol Hiring: Despite Recent Initiatives, Fiscal Year 1999 Hiring Goal Was Not Met

Description: A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO provided information on Border Patrol hiring, focusing on: (1) the Immigration and Naturalization Service's (INS) ability to meet its 5-year goal to increase the Border Patrol's onboard strength by 1,000 agents each year from fiscal years (FY) 1997 through 2001; (2) INS' efforts to improve its recruiting efforts and hiring process; (3) changes in the years of experience… more
Date: December 17, 1999
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Report
open access

Calculations of Acute and Chronic "Chi I Q" Dispersion Estimates for a Sulface Release

Description: The objective of this calculation is to determine downwind normalized concentration, ''Chi/Q'' ({chi}/Q), estimates at the surface for acute (short-term) and chronic (long-term) exposures of an airborne material released from a surfaced-based point release. This calculation was requested by the Safety Analysis Department to support repository design in the Site Recommendation and possible future License Application activities. Attachment IV, item 1 displays this request. The {chi}/Q dispersion … more
Date: December 17, 1999
Creator: Fransioli, P.M.
Item Type: Refine your search to only Report
open access

Cesium removal and kinetics equilibrium: Precipitation kinetics

Description: This task consisted of both non-radioactive and radioactive (tracer) tests examining the influence of potentially significant variables on cesium tetraphenylborate precipitation kinetics. The work investigated the time required to reach cesium decontamination and the conditions that affect the cesium precipitation kinetics.
Date: December 17, 1999
Creator: Barnes, M.J.
Item Type: Refine your search to only Report
open access

District of Columbia: The District Has Not Adequately Planned for and Managed Its New Personnel and Payroll System

Description: A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed the District of Columbia's management of the development of the Comprehensive Automated Personnel and Payroll System (CAPPS), focusing on whether the District has effectively planned and managed CAPPS."
Date: December 17, 1999
Creator: United States. General Accounting Office.
Item Type: Refine your search to only Report
open access

Doped Contacts for High-Longevity Optically Activated, High Gain GaAs Photoconductive Semiconductor Switches

Description: The longevity of high gain GaAs photoconductive semiconductor switches (PCSS) has been extended to over 100 million pulses. This was achieved by improving the ohmic contacts through the incorporation of a doped layer that is very effective in the suppression of filament formation, alleviating current crowding. Damage-free operation is now possible with virtually infinite expected lifetime at much higher current levels than before. The inherent damage-free current capacity of the bulk GaAs itsel… more
Date: December 17, 1999
Creator: Mar,Alan; Loubriel,Guillermo M.; Zutavern,Fred J.; O'Malley,Martin W.; Helgeson,Wesley D.; Brown,Darwin James et al.
Item Type: Refine your search to only Article
open access

Electroabsorption and transport measurements and modeling in amorphous-silicon-based solar cells: Phase I technical progress report, 24 March 1998--23 March 1999

Description: This report describes work done by the Syracuse University during Phase 1 of this subcontract. Researchers performed work in the following areas: (1) In ``Electroabsorption measurements and built-in potentials in a-Si:H-based solar cells and devices'', researchers obtained an estimate of Vbi = 1.17 V in cells with a-SiGe:H absorber layers from United Solar Systems Corp. (2) In ``Solar cell modeling employing the AMPS computer program'', researchers began operating a simple AMPS modeling site an… more
Date: December 17, 1999
Creator: Schiff, E. A.; Lyou, J.; Kopidakis, N.; Rao, P. & Yuan, Q.
Item Type: Refine your search to only Report
open access

Environmental Assessment and Finding of No Significant Impact: Waste Remediation Activities at Elk Hills (Former Naval petroleum Reserve No. 1), Kern County, California

Description: DOE proposes to conduct a variety of post-sale site remediation activities, such as characterization, assessment, clean-up, and formal closure, at a number of inactive waste sites located at Elk Hills. The proposed post-sale site remediation activities, which would be conducted primarily in developed portions of the oil field, currently are expected to include clean-up of three basic categories of waste sites: (1) nonhazardous solid waste surface trash scatters, (2) produced wastewater sumps, a… more
Date: December 17, 1999
Item Type: Refine your search to only Report
open access

An evaluation of the whole effluent toxicity test method

Description: Whole effluent toxicity (WET) testing has become increasingly more important to the Environmental Protection Agency (EPA) and the States in the permitting of wastewater discharges from industry and municipalities. The primary purpose of the WET test is to protect aquatic life by predicting the effect of an effluent on the receiving stream. However, there are both scientific and regulatory concerns that using WET tests to regulate industrial effluents may result in either false positives and/or … more
Date: December 17, 1999
Creator: Osteen, D.V.
Item Type: Refine your search to only Report
open access

First and second quarters 1999 -- TNX Area groundwater and effectiveness monitoring strategy data only report

Description: This report presents data of groundwater monitoring conducted during the first and second quarters of 1999 in support of the Interim Remedial Action. The data is from groundwater monitoring wells described in this report as the primary, secondary, and recovery wells of the initial operation of the Effectiveness Monitoring Strategy (EMS) as stipulated in Revision 1.3 (WSRC, 1996), the proposed wells for the full operation of the EMS as described in Revision 1.5 (WSRC, 1999), and general wells pe… more
Date: December 17, 1999
Creator: Chase, J.
Item Type: Refine your search to only Report
open access

Inductively coupled plasma -- Atomic emission spectroscopy glove box assembly system at the West Valley Demonstration Project

Description: The inductively coupled plasma/atomic emission spectroscopy [ICP/AES (ICP)] system for elemental analyses in support of vitrification processing was first installed in 1986. The initial instrument was a Jobin Yvon (JY) Model JY-70 ICP that consisted of sequential and simultaneous spectrometers for analysis of nonradioactive samples as radioactive surrogates. The JY-70 ICP continued supporting nonradioactive testing during the Functional and Checkout Testing of Systems (FACTS) using the full-sca… more
Date: December 17, 1999
Creator: Marlow, J. H.; McCarthy, K. M. & Tamul, N. R.
Item Type: Refine your search to only Report
open access

Life-Cycle Cost and Risk Analysis of Alternative Configurations for Shipping Low-Level Radioactive Waste to the Nevada Test Site

Description: This study evaluates alternative transportation system configurations for NTS approved and potential generators based on complex-wide LLW load information. Technical judgments relative to the availability of DOE LLW generators to ship from their sites by rail were developed. Public and worker risk and life-cycle cost components are quantified. The study identifies and evaluates alternative scenarios that increase the use of rail (intermodal where needed) to transport LLW from generator sites to… more
Date: December 17, 1999
Creator: Daling, Philip M.; Ross, Steven B. & Biwer, Bruce
Item Type: Refine your search to only Report
open access

Life-Cycle Cost and Risk Analysis of Alternative Configurations for Shipping Low-Level Radioactive Waste to the Nevada Test Site

Description: The Nevada Test Site (NTS) is a major receiver of low-level radioactive waste (LLW) for disposal. Currently, all LLW received at NTS is shipped by truck. The trucks use highway routes to NTS that pass through the Las Vegas Valley and over Hoover Dam, which is a concern of local stakeholder groups in the State of Nevada. Rail service offers the opportunity to reduce transportation risks and costs, according to the Waste Management Programmatic Environmental Impact Statement (WM-PEIS). However, N… more
Date: December 17, 1999
Creator: Daling, PM; Ross, SB & Biwer, BM
Item Type: Refine your search to only Report
open access

Modeling atmospheric deposition using a stochastic transport model

Description: An advanced stochastic transport model has been modified to include the removal mechanisms of dry and wet deposition. Time-dependent wind and turbulence fields are generated with a prognostic mesoscale numerical model and are used to advect and disperse individually released particles that are each assigned a mass. These particles are subjected to mass reduction in two ways depending on their physical location. Particles near the surface experience a decrease in mass using the concept of a dry … more
Date: December 17, 1999
Creator: Buckley, R. L.
Item Type: Refine your search to only Report
open access

Non-linear evolution of double tearing modes in tokamaks

Description: The delta prime formalism with neoclassical modifications has proven to be a useful tool in the study of tearing modes in high beta, collisionless plasmas. In this paper the formalism developed for the inclusion of neoclassical effects on tearing modes in monotonic q-profile plasmas is extended to plasmas with hollow current profiles and double rational surfaces. First, the classical formalism of tearing modes in the Rutherford regime in low beta plasmas is extended to q profiles with two ratio… more
Date: December 17, 1999
Creator: Fredrickson, E.; Bell, M.; Budny, R.V. & Synakowski, E.
Item Type: Refine your search to only Report
open access

The NSTX Central Instrumentation and Control System

Description: Earlier this year the National Spherical Torus Experiment (NSTX) at the Princeton Plasma Physics Laboratory achieved ''first plasma''. The Central Instrumentation and Control System was used to support plasma operations. Major elements of the system include the Process Control System, Plasma Control System, Network System, Data Acquisition System, and Synchronization System. This paper will focus on the Process Control System. Topics include the architecture, hardware interface, operator interf… more
Date: December 17, 1999
Creator: Oliaro, G.; Dong, J.; Tindall, K. & Sichta, P.
Item Type: Refine your search to only Report
open access

Nuclear Science at GEANIE

Description: GEANIE at LANSCE/WNR combines the precision energy resolution of germanium detectors with the advantages of a white source providing neutrons with energies 1 < E{sub n}(MeV) < 250 to address a variety of topics in nuclear physics. The authors present the analysis of two data sets, n+{sup 235}U and n+{sup 92}Mo, acquired at GEANIE during the 1998 beam cycle. These data showcase the breadth of subjects under study at this facility, including the spectroscopy of stable and near-stable nuclei… more
Date: December 17, 1999
Creator: Younes, W.; Becker, J. A.; Bernstein, L. A.; Garrett, P. E.; McNabb, D. P.; McGrath, C. A. et al.
Item Type: Refine your search to only Article
open access

Photodissociation and charge transfer dynamics of negative ions studied with femtosecond photoelectron spectroscopy

Description: This dissertation presents studies aimed at understanding the potential energy surfaces and dynamics of isolated negative ions, and the effects of solvent on each. Although negative ions play important roles in atmospheric and solution phase chemistry, to a large extent the ground and excited state potential energy surfaces of gas phase negative ions are poorly characterized, and solvent effects even less well understood. In an effort to fill this gap, the author's coworkers and the author have… more
Date: December 17, 1999
Creator: Zanni, Martin T.
Item Type: Refine your search to only Thesis or Dissertation
open access

Scatter Loss From Environmental Degradation of KDP Crystals

Description: Severe scattering losses from KDP crystals have been correlated with the exposure of porous sol AR coated crystals to ambient humidity. The scattering is attributed to formation of etch pits which develop under the coating on the KDP surface along crystallographic axes. This high angle scattering can in turn produce laser damage of downstream optics either through modulation of the beam or by optic contamination from ablation of adjacent metal structures. We have developed a simple tool to char… more
Date: December 17, 1999
Creator: Wheeler, E.K.; McWhirter, J.; Whitman, P.K.; Thorsness, C.; De Yoreo, J.; Thomas, I. et al.
Item Type: Refine your search to only Article
open access

Selective depredation of planted hardwood seedlings by wild pigs in a wetland restoration area

Description: Following the planting of several thousand hardwood seedlings in a 69-ha wetland restoration area in west-central South Carolina, wild pigs (Sus scrofa) depredated a large percentage of the young trees. This planting was undertaken as part of a mitigation effort to restore a bottomland hardwood community in the corridor and delta of a third order stream that had been previously impacted by the discharge of heated nuclear reactor effluent. The depredated restoration areas had been pretreated wit… more
Date: December 17, 1999
Creator: Mayer, J.J.
Item Type: Refine your search to only Article
open access

Startup of the experimental physics industrial control system at NSTX

Description: The Experimental Physics Industrial Control System (EPICS) is a set of software which is being used as the basis of the National Spherical Torus Experiment's (NSTX) Process Control System, a major element of the NSTX's Central Instrumentation and Control System. EPICS is a result of a co-development effort started by several US Department of Energy National Laboratories. EPICS is actively supported through an international collaboration made up of government and industrial users. EPICS' good po… more
Date: December 17, 1999
Creator: Sichta, P. & Dong, J.
Item Type: Refine your search to only Report
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