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573 Matching Results
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Cleanup Verification Package for the 618-3 Burial Ground
This cleanup verification package documents completion of remedial action for the 618-3 Solid Waste Burial Ground, also referred to as Burial Ground Number 3 and the Dry Waste Burial Ground Number 3. During its period of operation, the 618-3 site was used to dispose of uranium-contaminated construction debris from the 311 Building and construction/demolition debris from remodeling of the 313, 303-J and 303-K Buildings.
Date:
September 12, 2006
Creator:
Appel, M. J.
Object Type:
Report
System:
The UNT Digital Library
The Clifton Record (Clifton, Tex.), Vol. 111, No. 19, Ed. 1 Friday, May 12, 2006
Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
May 12, 2006
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
[Close-up of Elizabeth Lopez]
Elizabeth Lopez, manager of economic development for the FWHCC.
Date:
January 12, 2006
Creator:
Castillo, José L.
Object Type:
Photograph
System:
The UNT Digital Library
Clutch Driven Reaction Wheel Steering Unit
Patent relating to a clutch driven reaction wheel steering unit.
Date:
April 5, 2005
Creator:
Smith, Monty J. & Maestas, Jeffrey E.
Object Type:
Patent
System:
The UNT Digital Library
CO2 Sequestration and Recycle by Photosynthesis
Hydrocarbon oxygenate synthesis from photocatalytic reactions of CO{sub 2} and H{sub 2}O over various catalysts is a very attractive process. However, the formation rate of the hydrocarbons and oxygenates is significantly lower than conventional catalysis. One possible reason for the low rate of product formation is the presence of oxidation sites which reoxidize the products back to CO{sub 2} and H{sub 2}O. For further improvement of catalytic activity for the reduction process, it is essential to understand the oxidation reaction process. We have studied photocatalytic oxidation of methylene blue and found the oxidation rate is significantly higher than the reduction rate.
Date:
February 12, 2006
Creator:
Chuang, Steven S.C.
Object Type:
Report
System:
The UNT Digital Library
CO2 Sequestration and Recycle by Photosynthesis
Hydrocarbon synthesis from photocatalytic reactions of CO{sub 2} and H{sub 2}O over various catalysts has been studied by UV-visible light. The quantum efficiencies suggest that Pd/TiO{sub 2} sol gel exhibits the highest activity for hydrocarbon synthesis from photocatalytic reactions. The in situ IR could successfully monitor the adsorbed hydrocarbon species. The UV-visible, IR spectroscopy and XRD techniques were used to characterize the catalysts to obtain the information of properties of the process and catalyst before/after reaction. The UV-visible spectroscopy provides the information about the surface band gap energy of each catalyst. In situ UV-visible studies reveals that TiO{sub 2}-supported catalysts require the higher energy (i.e. shorter wavelength) to pass through the water-thin film deposited on the surface to activate the photocatalytic reaction. XRD data show there is changes in the crystal structure of TiO{sub 2} sol gel from photon energy during photo reaction. The information from this study can lead to a better understanding of the nature of the catalysts and photoreaction processes, which might provide the information to develop better catalysts and reaction process for the hydrocarbon synthesis from photocatalytic reactions of CO{sub 2} and H{sub 2}O.
Date:
February 12, 2006
Creator:
Chuang, Steven S.C.
Object Type:
Report
System:
The UNT Digital Library
COG - Publicly Available Now to Criticality Safety Practitioners
COG is a modern, general-purpose, high fidelity, multi-particle transport code with a long history of use in criticality safety studies at the Lawrence Livermore National Laboratory. This code was released to the Radiation Safety Information Computational Center (RSICC) for distribution to the public for the first time in January 2006. This paper provides an overview of the code development history, a description of features and capabilities of interest to the criticality safety practitioner, and our plans in support of the next public RSICC release.
Date:
September 12, 2006
Creator:
Buck, R M; Cullen, D E; Heinrichs, D P; Lent, E M; Nielsen, Jr, D E & Sale, K E
Object Type:
Article
System:
The UNT Digital Library
The Colony Courier-Leader (The Colony, Tex.), Vol. 25, No. 10, Ed. 1 Wednesday, April 12, 2006
Weekly newspaper from The Colony, Texas that includes local, state, and national news along with advertising.
Date:
April 12, 2006
Creator:
Crimmins, Blaine
Object Type:
Newspaper
System:
The Portal to Texas History
The Colony Courier-Leader (The Colony, Tex.), Vol. 25, No. 23, Ed. 1 Wednesday, July 12, 2006
Weekly newspaper from The Colony, Texas that includes local, state, and national news along with advertising.
Date:
July 12, 2006
Creator:
Crimmins, Blaine
Object Type:
Newspaper
System:
The Portal to Texas History
Comanche Chief (Comanche, Tex.), No. 24, Ed. 1 Thursday, October 12, 2006
Weekly newspaper from Comanche, Texas that includes local, state, and national news along with advertising.
Date:
October 12, 2006
Creator:
Wilkerson, James C., III
Object Type:
Newspaper
System:
The Portal to Texas History
Comanche Chief (Comanche, Tex.), No. 37, Ed. 1 Thursday, January 12, 2006
Weekly newspaper from Comanche, Texas that includes local, state, and national news along with advertising.
Date:
January 12, 2006
Creator:
Wilkerson, James C., III
Object Type:
Newspaper
System:
The Portal to Texas History
[Comedy Night]
Video recording from The Black Academy of Arts and Letters recorded during their Comedy Night event in 2006. This video features various instrumental performances live on the Naomi Bruton Main Stage.
Date:
May 12, 2006
Creator:
Boyd, Kenneth
Object Type:
Video
System:
The UNT Digital Library
[Comedy night at the Naomi Bruton Theater, 1 of 2]
Video recording from The Black Academy of Arts and Letters recorded during the a variety comedian night event held at the Naomi Bruton Theatre on May 12th, 2006. The footage shows a variety of African American comedians performing sets on social life, customs, family and everyday experiences.
Date:
May 12, 2006
Creator:
unknown
Object Type:
Video
System:
The UNT Digital Library
[Comedy night at the Naomi Bruton Theater, 2 of 3]
Video recording from The Black Academy of Arts and Letters recorded during the a variety comedian night event held at the Naomi Bruton Theatre on May 12th, 2006. The footage shows a variety of African American comedians performing sets on social life, customs, family and everyday experiences.
Date:
May 12, 2006
Creator:
unknown
Object Type:
Video
System:
The UNT Digital Library
Comet 81P/Wild 2 under a microscope
The Stardust spacecraft collected thousands of particles from comet 81P/Wild 2 and returned them to Earth for laboratory study. The preliminary examination of these samples shows that the nonvolatile portion of the comet is an unequilibrated assortment of materials that have both presolar and solar system origin. The comet contains an abundance of silicate grains that are much larger than predictions of interstellar grain models, and many of these are high-temperature minerals that appear to have formed in the inner regions of the solar nebula. Their presence in a comet proves that the formation of the solar system included mixing on the grandest scales. Stardust was the first mission to return solid samples from a specific astronomical body other than the Moon. The mission, part of the NASA Discovery program, retrieved samples from a comet that is believed to have formed at the outer fringe of the solar nebula, just beyond the most distant planet. The samples, isolated from the planetary region of the solar system for billions of years, provide new insight into the formation of the solar system. The samples provide unprecedented opportunities both to corroborate astronomical (remote sensing) and sample analysis information (ground truth) on a known …
Date:
October 12, 2006
Creator:
Brownlee, D; Tsou, P.; Aleon, J.; Alexander, C.; Araki, T.; Bajt, S. et al.
Object Type:
Article
System:
The UNT Digital Library
The Commercial Energy Consumer: About Whom Are We Speaking?
Who are commercial sector customers, and how do they make decisions about energy consumption and energy efficiency investment? The energy policy field has not done a thorough job of describing energy consumption in the commercial sector. First, the discussion of the commercial sector itself is dominated by discussion of large businesses/buildings. Second, discussion of this portion of the commercial sectors consumption behavior is driven primarily by theory, with very little field data collected on the way commercial sector decision-makers describe their own options, choices, and reasons for taking action. These limitations artificially constrain energy policy options. This paper reviews the extant literature on commercial sector energy consumption behavior and identifies gaps in our knowledge. In particular, it argues that the primary energy policy model of commercial sector energy consumption is a top-down model that uses macro-level investment data to make conclusions about commercial behavior. Missing from the discussion is a model of consumption behavior that builds up to a theoretical framework informed by the micro-level data provided by commercial decision-makers themselves. Such a bottom-up model could enhance the effectiveness of commercial sector energy policy. In particular, translation of some behavioral models from the residential sector to the commercial sector may …
Date:
May 12, 2006
Creator:
Payne, Christopher
Object Type:
Article
System:
The UNT Digital Library
Committee Meeting Agenda September 12, 2006
Committee meeting agenda dated September 12, 2006, 11 days before the first day of the annual event. The header of the page includes a centered black and white LSR logo. The list of topics outlines reports from various managers and updates on finances, logistics, and rider relations.
Date:
September 12, 2006
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
Community Input
Contains Arlington County, VA proposal to the BRAC Commission
Date:
January 12, 2006
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
Comparison of Kinetic and Equilibrium Reaction Models inSimulating the Behavior of Gas Hydrates in Porous Media
In this study we compare the use of kinetic and equilibrium reaction models in the simulation of gas (methane) hydrates in porous media. Our objective is to evaluate through numerical simulation the importance of employing kinetic versus equilibrium reaction models for predicting the response of hydrate-bearing systems to external stimuli, such as changes in pressure and temperature. Specifically, we (1) analyze and compare the responses simulated using both reaction models for production in various geological settings and for the case of depressurization in a core during extraction; and (2) examine the sensitivity to factors such as initial hydrate saturation, hydrate reaction surface area, and numerical discretization. We find that for systems undergoing thermal stimulation and depressurization, the calculated responses for both reaction models are remarkably similar, though some differences are observed at early times. Given these observations, and since the computational demands for the kinetic reaction model far exceed those for the equilibrium reaction model, the use of the equilibrium reaction model often appears to be justified and preferred for simulating the behavior of gas hydrates.
Date:
May 12, 2006
Creator:
Kowalsky, Michael B. & Moridis, George J.
Object Type:
Article
System:
The UNT Digital Library
Configurational forces in solid nanostructures
The DOE grant (DE-FG02-99ER45787) to Princeton University, entitled Configurational Forces in Solid Nanostructures, was intended to cover the four-year period from September 1999 to September 2003. Effective 1 July 2003, the PI will relocate from Princeton to join the Harvard faculty. Princeton University will submit the Final Financial Report, the Final Property Report, and the Final Patent Report. The expenditures to date are $261,513 with %8,487 remaining of the awarded amount of $320,000. Harvard University will submit a request for the remaining amount. This Final Technical Report covers from the period between September 1999 to June 2003. Three Ph.D. students, Wei Lu, Yanfei Gao and Wei Hong, admitted to Princeton in the fall of 1998, 1999, 2002, respectively, have been dedicated to this project. Wei Lu earned his Ph.D. in August 2001, and is now an assistant professor at The University of Michigan, Ann Arbor. Yanfei Gao earned his Ph.D. in February 2003, and is now a post-doc at Brown University. The amount of funding covers one student at a time. All three students received first-year fellowships from Princeton University. In the Mechanical and Aerospace Engineering Department, to fulfill a doctoral degree requirement, every student serves as a teaching assistant …
Date:
June 12, 2006
Creator:
Suo, Zhigang
Object Type:
Report
System:
The UNT Digital Library
The Congressional Appropriations Process: An Introduction
This report contains a brief overview and introduction on the congressional appropriations process.
Date:
December 12, 2006
Creator:
Streeter, Sandy
Object Type:
Report
System:
The UNT Digital Library
Congressional Gifts and Travel: Proposals for the 109th Congress
This report provides a brief analysis of the proposal for change introduced or discussed in the 109th Congress and will be updated as events warrant.
Date:
May 12, 2006
Creator:
Amer, Mildred
Object Type:
Report
System:
The UNT Digital Library
Conventional Warheads for Long-Range Ballistic Missiles: Background and Issues for Congress
This report provides an overview of the Administration's rationale for the possible deployment of conventional warheads on long-range ballistic missiles.
Date:
October 12, 2006
Creator:
Woolf, Amy F.
Object Type:
Report
System:
The UNT Digital Library
Convergence Analysis of a Domain Decomposition Paradigm
We describe a domain decomposition algorithm for use in several variants of the parallel adaptive meshing paradigm of Bank and Holst. This algorithm has low communication, makes extensive use of existing sequential solvers, and exploits in several important ways data generated as part of the adaptive meshing paradigm. We show that for an idealized version of the algorithm, the rate of convergence is independent of both the global problem size N and the number of subdomains p used in the domain decomposition partition. Numerical examples illustrate the effectiveness of the procedure.
Date:
June 12, 2006
Creator:
Bank, R E & Vassilevski, P S
Object Type:
Article
System:
The UNT Digital Library