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96
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A 3-D hydrodynamic dispersion model for modeling tracer transport in Geothermal Reservoirs
A 3-D hydrodynamic dispersion model for tracer transport is developed and implemented into the TOUGH2 EOS3 (T2R3D) module. The model formulation incorporates a full dispersion tensor, based on a 3-D velocity field with a 3-D, irregular grid in a heterogeneous geological system. Two different weighting schemes are proposed for spatial average of 3-D velocity fields and concentration gradients to evaluate the mass flux by dispersion and diffusion of a tracer or a radionuclide. This new module of the TOUGH2 code is designed to simulate processes of tracer/radionuclide transport using an irregular, 3-D integral finite difference grid in non-isothermal, three-dimensional, multiphase, porous/fractured subsurface systems. The numerical method for this transport module is based on the integral finite difference scheme, as in the TOUGH2 code. The major assumptions of the tracer transport module are: (a) a tracer or a radionuclide is present and transported only within the liquid phase, (b) transport mechanisms include molecular diffusion and hydrodynamic dispersion in the liquid phase in addition to advection, and (c) first order decay and linear adsorption on rock grains are taken into account. The tracer or radionuclide is introduced as an additional mass component into the standard TOUGH2 formulation, time is discretized fully implicitly, …
Date:
January 26, 1998
Creator:
Wu, Yu-Shu & Pruess, Karsten
Object Type:
Article
System:
The UNT Digital Library
Acceptable Knowledge Summary Report for Waste Stream: SR-T001-221F-HET/Drums
Since beginning operations in 1954, the Savannah River Site FB-Line produced Weapons Grade Plutonium for the United States National Defense Program. The facility mission was mainly to process dilute plutonium solution received from the 221-F Canyon into highly purified plutonium metal. As a result of various activities (maintenance, repair, clean up, etc.) in support of the mission, the facility generated a transuranic heterogeneous debris waste stream. Prior to January 25, 1990, the waste stream was considered suspect mixed transuranic waste (based on potential for inclusion of F-Listed solvent rags/wipes) and is not included in this characterization. Beginning January 25, 1990, Savannah River Site began segregation of rags and wipes containing F-Listed solvents thus creating a mixed transuranic waste stream and a non-mixed transuranic waste stream. This characterization addresses the non-mixed transuranic waste stream packaged in 55-gallon drums after January 25, 1990.Characterization of the waste stream was achieved using knowledge of process operations, facility safety basis documentation, facility specific waste management procedures and storage / disposal records. The report is fully responsive to the requirements of Section 4.0 "Acceptable Knowledge" from the WIPP Transuranic Waste Characterization Quality Assurance Plan, CAO-94-1010, and provides a sound, (and auditable) characterization that satisfies the WIPP …
Date:
October 26, 1998
Creator:
Lunsford, G.F.
Object Type:
Report
System:
The UNT Digital Library
ADVANCED TURBINE SYSTEM CONCEPTUAL DESIGN AND PRODUCT DEVELOPMENT
None
Date:
August 26, 1998
Creator:
Mayer, Albrecht H.
Object Type:
Report
System:
The UNT Digital Library
Airport Finance: A Brief Overview
This report considers how airports are managed and financed. Moreover, the report specifies how although airports are public enterprises, they are normally run as businesses.
Date:
June 26, 1998
Creator:
Kirk, Robert S.
Object Type:
Report
System:
The UNT Digital Library
The Albany News (Albany, Tex.), Vol. 122, No. 39, Ed. 1 Thursday, February 26, 1998
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
February 26, 1998
Creator:
Lucas, Donnie A.
Object Type:
Newspaper
System:
The Portal to Texas History
The Albany News (Albany, Tex.), Vol. 122, No. 43, Ed. 1 Thursday, March 26, 1998
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
March 26, 1998
Creator:
Lucas, Donnie A.
Object Type:
Newspaper
System:
The Portal to Texas History
The Albany News (Albany, Tex.), Vol. 123, No. 26, Ed. 1 Thursday, November 26, 1998
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
November 26, 1998
Creator:
Lucas, Donnie A.
Object Type:
Newspaper
System:
The Portal to Texas History
Alternative Window Schemes for CuInSe2-Based Solar Cells Final Report: 3 November 1995-December 1997
This work demonstrated high-efficiency CIGS cells based on highly resistive ZnO buffer layers grown by MOCVD. One cell based on NREL CIGS and a ZnO buffer layer exhibited an active-area efficiency of nearly 14%. This result is one of the best efficiencies reported for a ''direct'' ZnO/CIGS cell made with a vacuum process.
Date:
October 26, 1998
Creator:
Olsen, L.C. (Electronic Materials Laboratory: Washington State University at Tri-Cities)
Object Type:
Report
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 98, No. 265, Ed. 1 Monday, January 26, 1998
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 26, 1998
Creator:
Cole, Carol
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 98, No. 291, Ed. 1 Thursday, February 26, 1998
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 26, 1998
Creator:
Cole, Carol
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 99, No. 11, Ed. 1 Thursday, March 26, 1998
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
March 26, 1998
Creator:
Cole, Carol
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 99, No. 37, Ed. 1 Sunday, April 26, 1998
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 26, 1998
Creator:
Cole, Carol
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 99, No. 63, Ed. 1 Tuesday, May 26, 1998
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
May 26, 1998
Creator:
Cole, Carol
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 99, No. 91, Ed. 1 Friday, June 26, 1998
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
June 26, 1998
Creator:
Cole, Carol
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 99, No. 115, Ed. 1 Sunday, July 26, 1998
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 26, 1998
Creator:
Cole, Carol
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 99, No. 140, Ed. 1 Wednesday, August 26, 1998
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 26, 1998
Creator:
Cole, Carol
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 99, No. 220, Ed. 1 Thursday, November 26, 1998
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
November 26, 1998
Creator:
Cole, Carol
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Aluminum hydroxide issue closure package
Aluminum hydroxide coatings on fuel elements stored in aluminum canisters in K West Basin were measured in July and August 1998. Good quality data was produced that enabled statistical analysis to determine a bounding value for aluminum hydroxide at a 99% confidence level. The updated bounding value is 10.6 kg per Multi-Canister Overpack (MCO), compared to the previously estimated bounding value of 8 kg/MCO. Thermal analysis using the updated bounding value, shows that the MCO generates oxygen concentrate that are below the lower flammability limits during the 40-year interim storage period and are, therefore, acceptable.
Date:
August 26, 1998
Creator:
Bergman, T. B.
Object Type:
Report
System:
The UNT Digital Library
The Alvin Advertiser (Alvin, Tex.), Ed. 1 Wednesday, August 26, 1998
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
August 26, 1998
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Alvin Sun-Advertiser (Alvin, Tex.), Vol. 107, No. 74, Ed. 1 Sunday, April 26, 1998
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
April 26, 1998
Creator:
Schwind, Jim & Dodson, Doug
Object Type:
Newspaper
System:
The Portal to Texas History
Alvin Sun-Advertiser (Alvin, Tex.), Vol. 107, No. 100, Ed. 1 Sunday, July 26, 1998
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
July 26, 1998
Creator:
Schwind, Jim & Dodson, Doug
Object Type:
Newspaper
System:
The Portal to Texas History
The Alvin Sun (Alvin, Tex.), Vol. 107, No. 49, Ed. 1 Monday, January 26, 1998
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
January 26, 1998
Creator:
Schwind, Jim & Dodson, Doug
Object Type:
Newspaper
System:
The Portal to Texas History
The Alvin Sun (Alvin, Tex.), Vol. 108, No. 24, Ed. 1 Monday, October 26, 1998
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
October 26, 1998
Creator:
Schwind, Jim & Looby, Edward
Object Type:
Newspaper
System:
The Portal to Texas History
Appropriations for FY1998: Military Construction
None
Date:
February 26, 1998
Creator:
Tyszkiewicz, Mary T.
Object Type:
Report
System:
The UNT Digital Library