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Reduction of U(VI) Complexes by Anthraquinone Disulfonate: Experiment and Molecular Modeling
Past studies demonstrate that complexation will limit abiotic and biotic U(VI) reduction rates and the overall extent of reduction. However, the underlying basis for this behavior is not understood and presently unpredictable across species and ligand structure. The central tenets of these investigations are: (1) reduction of U(VI) follows the electron-transfer (ET) mechanism developed by Marcus; (2) the ET rate is the rate-limiting step in U(VI) reduction and is the step that is most affected by complexation; and (3) Marcus theory can be used to unify the apparently disparate U(VI) reduction rate data and as a computational tool to construct a predictive relationship.
Date:
March 17, 2004
Creator:
Ainsworth, C. C.; Wang, Z.; Rosso, K. M.; Wagnon, K. & Fredrickson, J. K.
System:
The UNT Digital Library
Industrial Applications of Induced Positron Annihilation
This presentation discusses industrial applications of induced positron annihilation.
Date:
October 6, 2004
Creator:
Akers, D.
System:
The UNT Digital Library
Current Research in Wireless at UNT
This presentation discusses wireless networks, access point selections, traffic balancing, multi-cell CDMA, user distribution modeling, and call admission control.
Date:
October 2004
Creator:
Akl, Robert G.
System:
The UNT Digital Library
Subscriber Maximization in CDMA Cellular Networks
This presentation gives an overview of code division multiple access (CDMA), traffic and mobility models, subscriber optimization formulation, and numerical results.
Date:
August 2004
Creator:
Akl, Robert G.
System:
The UNT Digital Library
Global versus Local Call Admission Control in CDMA Cellular Networks [Presentation]
This presentation discusses interference model impacts on capacity, global call admission controls, local call admission controls, and the differences in global versus local call admission controls.
Date:
July 2004
Creator:
Akl, Robert G. & Parvez, Asad
System:
The UNT Digital Library
Impact of Interference Model on Capacity in CDMA Cellular Networks
This presentation introduces code division multiple access (CDMA) networks, average and actual interference models, optimized capacity, and the 2D Gaussian user model.
Date:
July 2004
Creator:
Akl, Robert G. & Parvez, Asad
System:
The UNT Digital Library
RILM via FirstSearch
This presentation focuses on the Répertoire International de Littérature Musicale (RILM) search interface. RILM is an online music bibliography. Through screenshots of the interface and instructions, the presentation highlights different features of RILM's database and how to get the most accurate results based on your search topic. This presentation was given at the Music Library Association Conference on February 12, 2004,
Date:
2004
Creator:
Arnold, Donna M.
System:
The UNT Digital Library
Managed data storage and data access services for data grids
None
Date:
December 1, 2004
Creator:
Bakken, Jon; Fisk, Ian; Fuhrmann, Patrick; Mkrtchyan, Tigran; Perelmutov, Timur; Petravick, Don et al.
System:
The UNT Digital Library
Comparison of up-scaling methods in poroelasticity and its generalizations
None
Date:
June 11, 2004
Creator:
Berryman, James G.
System:
The UNT Digital Library
Cultural Resources Program Update
None
Date:
December 1, 2004
Creator:
Bishop, L.
System:
The UNT Digital Library
Managing the Yucca Mountain Project's Cultural Resources
None
Date:
May 25, 2004
Creator:
Bishop, L.
System:
The UNT Digital Library
Ukraine Radiological Sources
This presentation discusses Ukraine radiological sources.
Date:
October 3, 2004
Creator:
Bodnar, I. V.
System:
The UNT Digital Library
Isotope Production in Light of Increasing Demand
This presentation discusses isotope production in light of increasing demand.
Date:
October 3, 2004
Creator:
Brown, R.W.
System:
The UNT Digital Library
Reaction-Based Reactive Transport Modeling of Biological Iron(III) Reduction
The summary of this report is: (1) biogenic flux increases as hydrologic residence time decreases; (2) reaction-based reactive transport modeling can capture this effect; (3) solid-phase Fe(III) bioreduction can be sustained at long residence times in natural sediments; and (4) long-term coupled Fe(III)/U(VI) bioreduction can be sustained in natural sediments.
Date:
March 17, 2004
Creator:
Burgos, Bill
System:
The UNT Digital Library
Overview of the U.S. Department of Energy's Isotope Programs
This presentation provides an overview of the U.S. Department of Energy's Isotopes Program. The charter of the Isotope Programs covers the production and sale of radioactive and stable isotopes, associated byproducts, surplus materials, and related isotope services.
Date:
October 5, 2004
Creator:
Carty, J.
System:
The UNT Digital Library
Patch Management
None
Date:
May 14, 2004
Creator:
Christensen, Marvin J.; Fournier, K.; Brown, G.; Porter, F.; Kelley, R.; Kilbourne, C. et al.
System:
The UNT Digital Library
Field scale evaluation of biostimulation in the near source zone of the former S3 ponds at Oak Ridge
The primary objective of this report is to evaluate the rates and mechanisms of U(VI) reduction by microbial populations.
Date:
March 17, 2004
Creator:
Criddle, Craig; Fendorf, Scott; Brandt, Craig; Brooks, Scott; Hubbard, Susan; Williams, Ken et al.
System:
The UNT Digital Library
New Insights into the Mechanism of Bacterial Metal Respiration
This project goal is to identify genes and gene products required for microbial metal reduction: reductive dissolution of iron; reductive dissolution of manganese; reductive precipitation of selenium; reductive precipitation of uranium; and reductive precipitation of technetium.
Date:
April 17, 2004
Creator:
DiChristina, Thomas J.
System:
The UNT Digital Library
The IAEA and Control of Radioactive SourcesThe
This presentation discusses the International Atomic Energy Agency (IAEA) and the control of radioactive sources.
Date:
October 3, 2004
Creator:
Dodd, B.
System:
The UNT Digital Library
Development of chromium-tungsten alloys
Cr alloys containing 0-30 weight % W were investigated for their high temperature strength and oxidation resistance. These experimental alloys are intended for use in elevated temperature applications. Alloys were melted in a water-cooled, copper-hearth arc furnace. Microstructure of the alloys was studied using X-ray diffraction, scanning electron microscopy, and light microscopy. Meyer and Vickers hardness tests were utilized for measuring room temperature strength. A hot hardness tester with a spherical ruby indenter was used to study the strength of these materials between 800ºC and 1200ºC. A parabolic relationship was observed between load and indent size at all temperatures. On the other hand, decrease in hardness of the alloys with temperature was linear up to 1200ºC.
Date:
March 1, 2004
Creator:
Dogan, Omer N.; Alman, David E. & Hawk, Jeffrey A.
System:
The UNT Digital Library
Solutions to Obsolete Equipment in Operating Nuclear Power Plants
This presentation discusses solutions to obsolete equipment in operating nuclear power plants.
Date:
October 6, 2004
Creator:
Donovan, M.
System:
The UNT Digital Library
Effect of Nitrate on the Repassivation Potential of Alloy 22 in Chloride Containing Environments
None
Date:
August 16, 2004
Creator:
Elayat, H.; Gordon, S.; King, K.; Gdowski, G. & Summers, T.
System:
The UNT Digital Library
PROPOSAL OF A FINANCING SCHEME FOR A THIRD NPP IN BRAZIL
This presentation discusses a proposal of a financing scheme for a third nuclear power plant in Brazil.
Date:
October 6, 2004
Creator:
Filho, Z.D.T.
System:
The UNT Digital Library
Test Readiness Diagnostics
None
Date:
April 30, 2004
Creator:
Fittinghoff, David N.; May, Mark J. & Shepherd, Ronnie
System:
The UNT Digital Library