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462 Matching Results
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The Clifton Record (Clifton, Tex.), Vol. 108, No. 14, Ed. 1 Friday, February 14, 2003
Semi-weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
February 14, 2003
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
Polk County Enterprise (Livingston, Tex.), Vol. 121, No. 100, Ed. 1 Sunday, December 14, 2003
Semi-weekly newspaper from Livingston, Texas that includes local, state and national news along with advertising.
Date:
December 14, 2003
Creator:
White, Barbara
Object Type:
Newspaper
System:
The Portal to Texas History
The Clifton Record (Clifton, Tex.), Vol. 108, No. 92, Ed. 1 Friday, November 14, 2003
Semi-weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
November 14, 2003
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
The Clifton Record (Clifton, Tex.), Vol. 108, No. 39, Ed. 1 Wednesday, May 14, 2003
Semi-weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
May 14, 2003
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
Texas Jewish Post (Fort Worth, Tex.), Vol. 57, No. 33, Ed. 1 Thursday, August 14, 2003
Weekly Jewish newspaper from Fort Worth, Texas that includes local, state, and national news along with extensive advertising.
Date:
August 14, 2003
Creator:
Wisch, Rene & Wisch-Ray, Sharon
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 81, No. 320, Ed. 1 Tuesday, October 14, 2003
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
October 14, 2003
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 81, No. 231, Ed. 1 Monday, July 14, 2003
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
July 14, 2003
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
The Clifton Record (Clifton, Tex.), Vol. 108, No. 22, Ed. 1 Friday, March 14, 2003
Semi-weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
March 14, 2003
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
Seminole Sentinel (Seminole, Tex.), Vol. 95, No. 96, Ed. 1 Sunday, September 14, 2003
Semi-weekly newspaper from Seminole, Texas that includes local, state, and national news along with extensive advertising.
Date:
September 14, 2003
Creator:
Fisher, David
Object Type:
Newspaper
System:
The Portal to Texas History
Seminole Sentinel (Seminole, Tex.), Vol. 96, No. 18, Ed. 1 Sunday, December 14, 2003
Semi-weekly newspaper from Seminole, Texas that includes local, state, and national news along with extensive advertising.
Date:
December 14, 2003
Creator:
Fisher, David
Object Type:
Newspaper
System:
The Portal to Texas History
Seminole Sentinel (Seminole, Tex.), Vol. 95, No. 61, Ed. 1 Wednesday, May 14, 2003
Semi-weekly newspaper from Seminole, Texas that includes local, state, and national news along with extensive advertising.
Date:
May 14, 2003
Creator:
Fisher, David
Object Type:
Newspaper
System:
The Portal to Texas History
Archer County News (Archer City, Tex.), No. 33, Ed. 1 Thursday, August 14, 2003
Weekly newspaper from Archer City, Texas that includes local, state, and national news along with advertising.
Date:
August 14, 2003
Creator:
Lewis, Shelley
Object Type:
Newspaper
System:
The Portal to Texas History
Polk County Enterprise (Livingston, Tex.), Vol. 121, No. 74, Ed. 1 Sunday, September 14, 2003
Semi-weekly newspaper from Livingston, Texas that includes local, state and national news along with advertising.
Date:
September 14, 2003
Creator:
White, Barbara
Object Type:
Newspaper
System:
The Portal to Texas History
Polk County Enterprise (Livingston, Tex.), Vol. 121, No. 65, Ed. 1 Thursday, August 14, 2003
Semi-weekly newspaper from Livingston, Texas that includes local, state and national news along with advertising.
Date:
August 14, 2003
Creator:
White, Barbara
Object Type:
Newspaper
System:
The Portal to Texas History
Hondo Anvil Herald (Hondo, Tex.), Vol. 117, No. 33, Ed. 1 Thursday, August 14, 2003
Weekly newspaper from Hondo, Texas that includes local, state, and national news along with extensive advertising.
Date:
August 14, 2003
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Supporting Dynamic Ad hoc Collaboration Capabilities
Modern HENP experiments such as CMS and Atlas involve as many as 2000 collaborators around the world. Collaborations this large will be unable to meet often enough to support working closely together. Many of the tools currently available for collaboration focus on heavy-weight applications such as videoconferencing tools. While these are important, there is a more basic need for tools that support connecting physicists to work together on an ad hoc or continuous basis. Tools that support the day-to-day connectivity and underlying needs of a group of collaborators are important for providing light-weight, non-intrusive, and flexible ways to work collaboratively. Some example tools include messaging, file-sharing, and shared plot viewers. An important component of the environment is a scalable underlying communication framework. In this paper we will describe our current progress on building a dynamic and ad hoc collaboration environment and our vision for its evolution into a HENP collaboration environment.
Date:
July 14, 2003
Creator:
Agarwal, Deborah A. & Berket, Karlo
Object Type:
Article
System:
The UNT Digital Library
Calibrated Properties Model
This report has documented the methodologies and the data used for developing rock property sets for three infiltration maps. Model calibration is necessary to obtain parameter values appropriate for the scale of the process being modeled. Although some hydrogeologic property data (prior information) are available, these data cannot be directly used to predict flow and transport processes because they were measured on scales smaller than those characterizing property distributions in models used for the prediction. Since model calibrations were done directly on the scales of interest, the upscaling issue was automatically considered. On the other hand, joint use of data and the prior information in inversions can further increase the reliability of the developed parameters compared with those for the prior information. Rock parameter sets were developed for both the mountain and drift scales because of the scale-dependent behavior of fracture permeability. Note that these parameter sets, except those for faults, were determined using the 1-D simulations. Therefore, they cannot be directly used for modeling lateral flow because of perched water in the unsaturated zone (UZ) of Yucca Mountain. Further calibration may be needed for two- and three-dimensional modeling studies. As discussed above in Section 6.4, uncertainties for these calibrated …
Date:
February 14, 2003
Creator:
Liu, H. H.
Object Type:
Report
System:
The UNT Digital Library
3-D Seismic Methods for Geothermal Reservoir Exploration and Assessment--Summary
A wide variety of seismic methods covering the spectrum from DC to kilohertz have been employed at one time or the other in geothermal environments. The reasons have varied from exploration for a heat source to attempting to find individual fractures producing hot fluids. For the purposes here we will assume that overall objective of seismic imaging is for siting wells for successful location of permeable pathways (often fracture permeability) that are controlling flow and transport in naturally fractured reservoirs. The application could be for exploration of new resources or for in-fill/step-out drilling in existing fields. In most geothermal environments the challenge has been to separate the ''background'' natural complexity and heterogeneity of the matrix from the fracture/fault heterogeneity controlling the fluid flow. Ideally one not only wants to find the fractures, but the fractures that are controlling the flow of the fluids. Evaluated in this work is current state-of-the-art surface (seismic reflection) and borehole seismic methods (Vertical Seismic Profiling (VSP), Crosswell and Single Well) to locate and quantify geothermal reservoir characteristics. The focus is on active methods; the assumption being that accuracy is needed for successful well siting. Passive methods are useful for exploration and detailed monitoring for in-fill …
Date:
July 14, 2003
Creator:
Majer, E. L.
Object Type:
Report
System:
The UNT Digital Library
Influence of Clastic Dikes on Vertical Migration of Contaminants in the Vadose Zone at Hanford
This research project addressed the effect of clastic dikes on contaminant transport in the vadose zone. Clastic dikes are vertically oriented subsurface heterogeneities that are common at the Hanford Site, including in the subsurface sediments below the tank farms in the 200 West Area. Previous studies have suggested that clastic dikes may provide a fast path for transport of leaking fluid from the tanks through the vadose zone because they cut through the horizontally layered sediments at the site. The research tested the hypothesis that clastic dikes at the Hanford Site provide preferential pathways that enhance the vertical movement of moisture and contaminants through the vadose zone. Current flow and transport models of the vadose zone at the 200 Areas are based on relatively simple hydrogeologic models that assume horizontally layered sediments with no preferential vertical flow paths. To address those scientific needs, our research included field and modeling studies of the large-scale spatial distribution of clastic dikes, the hydrologic properties within dikes, and the potential effect of clastic dikes on fluid flow through the vadose zone. The data and models of the clastic dike networks produced for this project should be directly applicable to fate and transport studies conducted …
Date:
March 14, 2003
Creator:
Murray, Christopher J.; Ward, Anderson L. & Wilson, John L.
Object Type:
Report
System:
The UNT Digital Library
Tracking down the origin of Arc plasma science. II. Early continuous discharges
None
Date:
January 14, 2003
Creator:
Anders, Andre
Object Type:
Article
System:
The UNT Digital Library
Tracking down the origin of Arc plasma science. I. Early pulsed and oscillating discharges
None
Date:
January 14, 2003
Creator:
Anders, Andre
Object Type:
Article
System:
The UNT Digital Library
Integrated Field, Laboratory, and Modeling Studies to Determine the Effects of Linked Microbial and Physical Spatial Heterogeneity on Engineered Vadose Zone Bioremediation
While numerous techniques exist for remediation of contaminant plumes in groundwater or near the soil surface, remediation methods in the deep vadose zone are less established due to complex transport dynamics and sparse microbial populations. Yet pollution in the vadose zone poses a serious threat to the groundwater resources lying deeper in the sediment. While the contaminant may be slowly degraded by native microbial communities; microbial degradation rates rarely keep pace with the spread of the pollutant. Hydrologic and microbiological properties of the zone, and their interactions, are fundamentally different from the saturated zone: the vadose zone has an additional phase (air), higher levels of oxygen, and contaminant transport and water movement is predominantly perpendicular to geologic strata and occurs in water films. In addition, microbial populations in the vadose zone are sparse and spatially discontinuous, especially in arid climates. At the Department of Energy's Hanford site in Richland, WA, numerous recalcitrant organic compounds were disposed of in the vadose zone, and now are continual sources of groundwater pollution. Among the most problematic of these is a plume of carbon tetrachloride (CT), a common solvent, the majority of which still resides in the vadose zone despite the presence of microbes …
Date:
September 14, 2003
Creator:
Brockman, Fred & Selker, John
Object Type:
Report
System:
The UNT Digital Library
WABASH RIVER INTEGRATED METHANOL AND POWER PRODUCTION FROM CLEAN COAL TECHNOLOGIES (IMPPCCT)
The Wabash River Integrated Methanol and Power Production from Clean Coal Technologies (IMPPCCT) project is evaluating integrated electrical power generation and methanol production through clean coal technologies. The project is conducted by a multi-industry team lead by Gasification Engineering Corporation (GEC), and supported by Air Products and Chemicals, Inc., Dow Chemical Company, Dow Corning Corporation, Methanex Corporation, and Siemens Westinghouse Power Corporation. Two project phases are planned for execution, including: (1) Feasibility study and conceptual design for an integrated demonstration facility at the existing Wabash River Energy Limited (WREL) plant in West Terre Haute, Indiana, and for a fence-line commercial embodiment plants (CEP) operated at Dow Chemical or Dow Corning chemical plant locations (2) Research, development, and testing (RD&T) to define any technology gaps or critical design and integration issues. The WREL facility is a project selected and co-funded under the Round IV of the United States Department of Energy's (DOE's) Clean Coal Technology Program. In this project, coal and/or other solid fuel feedstocks are gasified in an oxygen-blown, entrained-flow gasifier with continuous slag removal and a dry particulate removal system. The resulting product synthesis gas is used to fuel a combustion turbine generator whose exhaust is integrated with a …
Date:
October 14, 2003
Creator:
Tsang, Albert
Object Type:
Report
System:
The UNT Digital Library
Letter report - parametric studies on the use of in situ formed magnetite for the removal of Sr and actinides from tank waste at the Savannah River site.
This report discusses the experimental program conducted at ANL to study the performance of in-situ-formed magnetite for the removal of Sr, Pu, Np, U, Am, and Cs from the Savannah River Site (SRS) tank waste. The boundaries for the experimental work were defined based on the operational envelope developed earlier in collaboration with SRS. In situ formed ''magnetite'' is actually a mixture of Fe(II) and Fe(III) oxides and hydroxides, including magnetite. Decontamination factor (DF) values were measured for both magnetite and monosodium titanate (MST). Magnetite DF values were found to be superior to MST for all isotopes studied. DF values for Pu, Np, and Sr, achieved within 30 minutes of magnetite formation were orders of magnitude larger than the needed values. DF values for U and Am were less than the former three but still acceptable, and greater than MST. DF values for Cs were very low. Conditions were found under which magnetite filtered rapidly and faster than MST. Further tests are needed to make concrete conclusions on the magnetite performance relative to MST in a cross-flow filtration setup.
Date:
April 14, 2003
Creator:
Arafat, H. A.; Aase, S. B.; Bakel, A. J.; Bowers, D. L.; Gelis, A. V.; Regalbuto, M. C. et al.
Object Type:
Report
System:
The UNT Digital Library