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92
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12
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42
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Alternative HEPA Filter Full-Scale Single Element Testing
Conventional disposable glass-fiber high efficiency particulate air (HEPA) filters are used throughout the Department of Energy complex in various process systems. Alternative filter media is being addressed that would have a long life on the HLW tanks.
Date:
January 15, 2003
Creator:
Adamson, D. J.
Object Type:
Report
System:
The UNT Digital Library
The Eastern Statesman (Wilburton, Okla.), Vol. 81, No. 12, Ed. 1 Tuesday, April 15, 2003
Biweekly student newspaper from Eastern Oklahoma State College in Wilburton, Oklahoma that includes local, state, and campus news along with advertising.
Date:
April 15, 2003
Creator:
Agent, Alicia
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Restoring Sustainable Forests on Appalachian Mined Lands for Wood Products, Renewable Energy, Carbon Sequestration, and Other Ecosystems Services Quarterly Report
The overall purpose of this project is to evaluate the biological and economic feasibility of restoring high-quality forests on mined land, and to measure carbon sequestration and wood production benefits that would be achieved from forest restoration procedures. In this segment of work, our goal was to review methods for estimating tree survival, growth, yield and value of forests growing on surface mined land in the eastern coalfields of the USA, and to determine the extent to which carbon sequestration is influenced by these factors. Public Law 95-87, the Surface Mining Control and Reclamation Act of 1977 (SMCRA), mandates that mined land be reclaimed in a fashion that renders the land at least as productive after mining as it was before mining. In the central Appalachian region, where prime farmland and economic development opportunities for mined land are scarce, the most practical land use choices are hayland/pasture, wildlife habitat, or forest land. Since 1977, the majority of mined land has been reclaimed as hayland/pasture or wildlife habitat, which is less expensive to reclaim than forest land, since there are no tree planting costs. As a result, there are now hundreds of thousands of hectares of grasslands and scrublands in various …
Date:
December 15, 2003
Creator:
Aggett, Jonathan
Object Type:
Report
System:
The UNT Digital Library
Streamlined Energy-Savings Calculations for Heat-Island Reduction Strategies
We have developed summary tables (sorted by heating- and cooling-degree-days) to estimate the potential of Heat-Island Reduction (HIR) strategies (i.e., solar-reflective roofs, shade trees, reflective pavements, and urban vegetation) to reduce cooling-energy use in buildings. The tables provide estimates of savings for both direct effect (reducing heat gain through the building shell) and indirect effect (reducing the ambient air temperature). In this analysis, we considered three building types that offer the most savings potential : residences, offices, and retail stores. Each building type was characterized in detail by Pre-1980 (old) or 1980+ (new) construction vintage and with natural gas or electricity as heating fuel. We defined prototypical-building characteristics for each building type and simulated the effects of HIR strategies on building cooling and heating energy use and peak power demand using the DOE-2.1E model and weather data for about 240 locations in the U.S. A statistical analysis of previously completed simulations for five cities was used to estimate the indirect savings. Our simulations included the effect of (1) solar-reflective roofing material on building [direct effect], (2) placement of deciduous shade trees near south and west walls of building [direct effect], and (3) ambient cooling achieved by urban reforestation and reflective …
Date:
March 15, 2003
Creator:
Akbari, Hashem & Konopacki, Steven J.
Object Type:
Report
System:
The UNT Digital Library
Contract 98, Appendix F self-assessment report for Fiscal Year 2003
This report summarizes the Ernest Orlando Lawrence Berkeley National Laboratory internal assessment of Laboratory operational and administrative performance in key support functions for Fiscal Year (FY) 2003. The report provides documentation of ongoing performance-based management and oversight processes required by the Department of Energy (DOE) to monitor, measure, and evaluate Berkeley Lab work.
Date:
October 15, 2003
Creator:
Albert (Editor), Rich
Object Type:
Report
System:
The UNT Digital Library
Neutrino telescopes as a direct probe of supersymmetrybreaking
We consider supersymmetric models where the scale of supersymmetry breaking lies between 5 x 10{sup 6} GeV and 5 x 10{sup 8} GeV. In this class of theories, which includes models of gauge mediated supersymmetry breaking, the lightest supersymmetric particle is the gravitino. The next to lightest supersymmetric particle is typically a long lived charged slepton with a lifetime between a microsecond and a second, depending on its mass. Collisions of high energy neutrinos with nucleons in the earth can result in the production of a pair of these sleptons. Their very high boost means they typically decay outside the earth. We investigate the production of these particles by the diffuse flux of high energy neutrinos, and the potential for their observation in large ice or water Cerenkov detectors. The relatively small cross-section for the production of supersymmetric particles is partially compensated for by the very long range of heavy particles. The signal in the detector consists of two parallel charged tracks emerging from the earth about 100 meters apart, with very little background. A detailed calculation using the Waxman-Bahcall limit on the neutrino flux and realistic spectra shows that km{sup 3} experiments could see as many as 4 events …
Date:
December 15, 2003
Creator:
Albuquerque, Ivone; Burdman, Gustavo & Chacko, Z.
Object Type:
Article
System:
The UNT Digital Library
Analysis of Events Associated with First Charge of Desicooler Material
HB-Line's mission included dissolution of uranium-aluminum scrap left over from a U3O8 scrap recovery program begun in 1972 with material returned from Rocky Flats and Oak Ridge. This material has been stored in desicooler containers, and is commonly referred to as the Desicoolers. The Scrap Recovery process includes the dissolution of scrap material and transfer of the resulting solution to H-Canyon for further disposition. During the first charge of this material into the HB-Line dissolvers, the solution heated to boiling without external heat being added. Yellow-colored fumes, which dissipated rapidly, were noted in the glovebox by operators, and a small amount of liquid was noted in the glovebox by operations after dissolver cooldown. This technical report documents analysis of the data from the event with respect to potential Safety Basis violation and the Integrated Safety Management System process. Based on the analysis presented, the safety basis has shown its ability to protect the worker, the facility and the public.
Date:
September 15, 2003
Creator:
Alexander, D. E.
Object Type:
Report
System:
The UNT Digital Library
Physics of arcing, and implications to sputter deposition
Arcing is a well-known, unwanted discharge regime observed on the surface of sputtering targets. The discharge voltage breaks down to less than 50 V while the current jumps to elevated levels. Arcing is unwanted because it prevents uniform deposition and creates particulates. The issue of arcing has been dealt with by target surface conditioning and by using modern power supplies that have arc suppression incorporated. With increasing quality requirements in terms of uniformity of coatings, and absence of particulates, especially for electrochromic and other advanced coatings applications, the issue of arcing warrants a closer examination with the goal to find other, physics-based, and hopefully better approaches of arcing prevention. From a physics point of view, the onset of arcing is nothing else than the transition of the discharge to a cathodic arc mode, which is characterized by the ignition of non-stationary arc spots. Arc spots operate by a sequence of microexplosions, enabling explosive electron emission, as opposed to secondary electron emission. Arc spots and their fragments have a size distribution in the micrometer and sub-micrometer range, and a characteristic time distribution that has components shorter than microseconds. Understanding the ignition conditions of arc spots are of central physical interest. Spot …
Date:
December 15, 2003
Creator:
Anders, Andre
Object Type:
Article
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 105, No. 154, Ed. 1 Monday, September 15, 2003
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 15, 2003
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 105, No. 181, Ed. 1 Wednesday, October 15, 2003
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 15, 2003
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 105, No. 233, Ed. 1 Monday, December 15, 2003
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 15, 2003
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Regional Heat Sources and the Active and Break Phases of Boreal Summer Intraseasonal Variability
The boreal summer intraseasonal variability (BSISV) associated with the 30-50 day mode is represented by the co-existence of three components, poleward propagation of convection over the Indian and tropical west Pacific longitudes and eastward propagation along the equator. The hypothesis that the three components influence each other has been investigated using observed OLR, NCEP-NCAR reanalysis, and solutions from an idealized linear model. The null hypothesis is that the three components are mutually independent. Cyclostationary EOF (CsEOF) analysis is applied on filtered OLR to extract the life-cycle of the BSISV. The dominant mode of CsEOF is significantly tied to observed rainfall over the Indian subcontinent. The components of the heating patterns from CsEOF analysis serve as prescribed forcings for the linear model. This allows us to ascertain which heat sources and sinks are instrumental in driving the large-scale monsoon circulation during the BSISV life-cycle. We identify three new findings: (1) the circulation anomalies that develop as a Rossby wave response to suppressed convection over the equatorial Indian Ocean associated with the previous break phase of the BSISV precondition the ocean-atmosphere system in the western Indian Ocean and trigger the next active phase of the BSISV, (2) the development of convection over …
Date:
December 15, 2003
Creator:
Annamalai, H & Sperber, K R
Object Type:
Article
System:
The UNT Digital Library
Amish Quilt and Baked Goods Sale
Photograph of a scene during the Amish Quilt and Baked Goods Sale.
Date:
September 15, 2003
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Amish Quilt and Baked Goods Sale
Photograph of a scene during the Amish Quilt and Baked Goods Sale.
Date:
September 15, 2003
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Amish Quilt and Baked Goods Sale
Photograph of a scene during the Amish Quilt and Baked Goods Sale.
Date:
September 15, 2003
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Amish Quilt and Baked Goods Sale
Photograph of a scene during the Amish Quilt and Baked Goods Sale.
Date:
September 15, 2003
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Amish Quilt and Baked Goods Sale
Photograph of a scene during the Amish Quilt and Baked Goods Sale.
Date:
September 15, 2003
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Amish Quilt and Baked Goods Sale
Photograph of a scene during the Amish Quilt and Baked Goods Sale.
Date:
September 15, 2003
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Amish Quilt and Baked Goods Sale
Photograph of a scene during the Amish Quilt and Baked Goods Sale.
Date:
September 15, 2003
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Amish Quilt and Baked Goods Sale
Photograph of a scene during the Amish Quilt and Baked Goods Sale.
Date:
September 15, 2003
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Amish Quilt and Baked Goods Sale
Photograph of a scene during the Amish Quilt and Baked Goods Sale.
Date:
September 15, 2003
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Amish Quilt and Baked Goods Sale
Photograph of a scene during the Amish Quilt and Baked Goods Sale.
Date:
September 15, 2003
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Amish Quilt and Baked Goods Sale
Photograph of a scene during the Amish Quilt and Baked Goods Sale.
Date:
September 15, 2003
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Amish Quilt and Baked Goods Sale
Photograph of a scene during the Amish Quilt and Baked Goods Sale.
Date:
September 15, 2003
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History