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12th Annual ALS Users' Association Meeting
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 atomic and molecular science. In addition, there was an ALS highlights session that emphasized new results and a session comprising highlights from the young scientists who will carry the ALS into the future.
Date:
December 17, 1999
Creator:
Robinson, Arthur L.
Object Type:
Article
System:
The UNT Digital Library
Agent Orange: Actions Needed to Improve Communications of Air Force Ranch Hand Study Data and Results
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 statistical limitations of the study and whether they have been adequately reported and communicated; (3) the measures established to monitor the study's conduct and to prevent improper influence, particularly those involving the Ranch Hand Study's Advisory Committee; and (4) the impact of the study on determinations of diseases for which Vietnam veterans are eligible to receive compensation benefits."
Date:
December 17, 1999
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
ALARA{trademark} 1146 strippable coating
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 removed transferable (surface) contamination from multiple surfaces (metal and concrete) with an average decontamination factor for alpha contamination of 6.68 and an average percentage of alpha contamination removed of 85.0%. Beta contamination removed was an average DF of 5.55 and an average percentage removed of 82.0%. This paper is an Innovative Technology Summary Report designed to provide potential users with the information they need to quickly determine if a technology would apply to a particular environmental management problem. They also are designed for readers who may recommend that a technology be considered by prospective users. This Innovative Technology offers a 35% cost savings over the Baseline Technology.
Date:
December 17, 1999
Creator:
Fricke, V.
Object Type:
Report
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 100, No. 233, Ed. 1 Friday, December 17, 1999
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 17, 1999
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Appropriations for FY2000: Labor, Health and Human Services, and Education
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.
Object Type:
Report
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 78, No. 41, Ed. 1 Friday, December 17, 1999
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
December 17, 1999
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
The Boerne Star (Boerne, Tex.), Vol. 94, No. 101, Ed. 1 Friday, December 17, 1999
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
December 17, 1999
Creator:
Keasling, Edna & Fierro, Jennifer
Object Type:
Newspaper
System:
The Portal to Texas History
Border Patrol Hiring: Despite Recent Initiatives, Fiscal Year 1999 Hiring Goal Was Not Met
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 and level of supervision of Border Patrol agents during INS' increased hiring; and (4) the ability of INS' basic training program to support the pace at which Border Patrol agents have been hired, including whether the Border Patrol Academy anticipates having the capacity to meet future growth."
Date:
December 17, 1999
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Calculations of Acute and Chronic "Chi I Q" Dispersion Estimates for a Sulface Release
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 estimates will be calculated at twenty pre-determined distances from a surface release point. The acute exposure dispersion estimates will be calculated for five percentile, percentage of occurrences {chi}/Q values are not exceeded, values.
Date:
December 17, 1999
Creator:
Fransioli, P.M.
Object Type:
Report
System:
The UNT Digital Library
Cesium removal and kinetics equilibrium: Precipitation kinetics
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.
Object Type:
Report
System:
The UNT Digital Library
[Channel 5 "Five Talk Street" on TBAALs upcoming 23rd season]
Video footage provided by The Black Academy of Arts and Letters recorded through KXAS of a news story on entering the new millennium and includes information on JBAAL's upcoming 23rd season. The footage includes an interview with president Curtis King.
Date:
December 17, 1999
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
The Clifton Record (Clifton, Tex.), Vol. 104, No. 101, Ed. 1 Friday, December 17, 1999
Semi-weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
December 17, 1999
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
Dallas Voice (Dallas, Tex.), Vol. 16, No. 33, Ed. 1 Friday, December 17, 1999
Weekly newspaper from Dallas, Texas that includes local, state, and national news and advertising of interest to the Lesbian, Gay, Bisexual, and Transgender (LGBT) community.
Date:
December 17, 1999
Creator:
Vercher, Dennis
Object Type:
Newspaper
System:
The UNT Digital Library
District of Columbia: The District Has Not Adequately Planned for and Managed Its New Personnel and Payroll System
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.
Object Type:
Report
System:
The UNT Digital Library
Doped Contacts for High-Longevity Optically Activated, High Gain GaAs Photoconductive Semiconductor Switches
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 itself depends on the thickness of the doped layers and is at least 100A for a dopant diffusion depth of 4pm. The contact metal has a different damage mechanism and the threshold for damage ({approx}40A) is not further improved beyond a dopant diffusion depth of about 2{micro}m. In a diffusion-doped contact switch, the switching performance is not degraded when contact metal erosion occurs, unlike a switch with conventional contacts. This paper will compare thermal diffusion and epitaxial growth as approaches to doping the contacts. These techniques will be contrasted in terms of the fabrication issues and device characteristics.
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.
Object Type:
Article
System:
The UNT Digital Library
Electroabsorption and transport measurements and modeling in amorphous-silicon-based solar cells: Phase I technical progress report, 24 March 1998--23 March 1999
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 and explored the effect of conduction bandtail width on Voc computed analytical approximations and the AMPS program. The quantitative differences between the two procedures are discussed. (3) In ``Drift mobility measurements in a-Si:H made with high hydrogen dilution'', researchers measured electron and hole mobilities in several n/i/Ni (semitransparent) cells from Pennsylvania State University with a-Si absorber layers made under maximal hydrogen dilution and found a modest increase in hole mobility in these materials compared to conventional a-Si:H. (4) In ``Electroabsorption spectroscopy in solar cells'', researchers discovered and interpreted an infrared absorption band near 1.0 eV, which they believe is caused by dopants and defects at the n/i interface of cells, and which also has interesting implications for the nature of electroabsorption and for the doping mechanism in …
Date:
December 17, 1999
Creator:
Schiff, E. A.; Lyou, J.; Kopidakis, N.; Rao, P. & Yuan, Q.
Object Type:
Report
System:
The UNT Digital Library
Environmental Assessment and Finding of No Significant Impact: Waste Remediation Activities at Elk Hills (Former Naval petroleum Reserve No. 1), Kern County, California
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, and (3) small solid waste landfills. Additionally, a limited number of other inactive waste sites, which cannot be typified under any of these three categories, have been identified as requiring remediation. Table 2.1-1 presents a summary, organized by waste site category, of the inactive waste sites that require remediation per the PSA, the ASA, and/or the UPCTA. The majority of these sites are known to contain no hazardous waste. However, one of the surface scatter sites (2G) contains an area of burn ash with hazardous levels of lead and zinc, another surface scatter site (25S) contains an area with hazardous levels of lead, a produced wastewater sump site (23S) and a landfill (42-36S) are known to contain hazardous levels of arsenic, and some sites have not yet been …
Date:
December 17, 1999
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
An evaluation of the whole effluent toxicity test method
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 false negatives. In order to realistically predict the effect of an effluent on the receiving stream, the test should be as representative as possible of the conditions in the receiving stream. Studies (Rand and Petrocelli 1985) suggested several criteria for an ideal aquatic toxicity test organism, one of which is that the organism be indigenous to, or representative of, the ecosystem receiving the effluent. The other component needed in the development of a predictive test is the use of the receiving stream water or similar synthetic water as the control and dilution water in the test method. Use of an indigenous species and receiving water in the test should help reduce the variability in the method and allow the test to predict the effect of …
Date:
December 17, 1999
Creator:
Osteen, D.V.
Object Type:
Report
System:
The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Friday, December 17, 1999
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 17, 1999
Creator:
Bush, Kent
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
First and second quarters 1999 -- TNX Area groundwater and effectiveness monitoring strategy data only report
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 pertinent to the report. Also included are data from SRTC projects in the TNX Area that are deemed useful for groundwater characterization.
Date:
December 17, 1999
Creator:
Chase, J.
Object Type:
Report
System:
The UNT Digital Library
Grandview Tribune (Grandview, Tex.), Vol. 105, No. 19, Ed. 1 Friday, December 17, 1999
Weekly newspaper from Grandview, Texas that includes local, state, and national news along with advertising.
Date:
December 17, 1999
Creator:
Magness, Jack, Jr.
Object Type:
Newspaper
System:
The Portal to Texas History
The Hopkins County Echo (Sulphur Springs, Tex.), Vol. 204, No. 51, Ed. 1 Friday, December 17, 1999
Weekly newspaper from Sulphur Springs, Texas that includes local, state, and national news along with advertising.
Date:
December 17, 1999
Creator:
Keys, Scott & Lamb, Bill
Object Type:
Newspaper
System:
The Portal to Texas History
Inductively coupled plasma -- Atomic emission spectroscopy glove box assembly system at the West Valley Demonstration Project
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-scale melter with ``cold'' (nonradioactive) testing campaigns. As a result, the need for another system was identified to allow for the analysis of radioactive samples. The Mass Spec (Spectrometry) Lab was established for the installation of the modified ICP system for handling radioactive samples. The conceptual setup of another ICP was predicated on the use of a hood to allow ease of accessibility of the torch, nebulizer, and spray chamber, and the minimization of air flow paths. However, reconsideration of the radioactive sample dose rate and contamination levels led to the configuration of the glovebox system with a common transfer interface box for the ICP and the inductively coupled plasma-mass spectrometer (ICP-MS) glovebox assemblies. As a result, a simultaneous Model JY-50P ICP with glovebox was installed in 1990 as a first generation ICP glovebox …
Date:
December 17, 1999
Creator:
Marlow, J. H.; McCarthy, K. M. & Tamul, N. R.
Object Type:
Report
System:
The UNT Digital Library
Life-Cycle Cost and Risk Analysis of Alternative Configurations for Shipping Low-Level Radioactive Waste to the Nevada Test Site
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 NTS.
Date:
December 17, 1999
Creator:
Daling, Philip M.; Ross, Steven B. & Biwer, Bruce
Object Type:
Report
System:
The UNT Digital Library