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Divisions, Areas, and Ensembles - Opera - Werther, 2010
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OVERVIEW OF IMPACTS OF TECHNOLOGY DEPLOYMENT ON THE MISSION OF THE DEPARTMENT OF ENERGY OFFICE OF ENVIRONMENTAL MANAGEMENT
The Environmental Management (EM) mission is to complete the safe cleanup of the environmental legacy brought about from five decades of nuclear weapons development and government-sponsored nuclear energy research. The EM program has embraced a mission completion philosophy based on reducing risk and environmental liability over a 40-50 year lifecycle. The Department has made great progress toward safely disposing of its legacy nuclear waste. EM Research and Development (R&D) program management strategies have driven numerous technology and engineering innovations to reduce risk, minimize cleanup costs, and reduce schedules. Engineering and technology investments have provided the engineering foundation, technical assistance, approaches, and technologies that have contributed to moving the cleanup effort forward. These successes include start-up and operation of several waste treatment facilities and processes at the sites.
Date:
November 30, 2010
Creator:
McCabe, D.; Chamberlain, G.; Looney, B. & Gladden, J.
Object Type:
Article
System:
The UNT Digital Library
Perry Daily Journal (Perry, Okla.), Vol. 118, No. 229, Ed. 1 Tuesday, November 30, 2010
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
November 30, 2010
Creator:
Brown, Gloria
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
A Plasma Lens for Magnetron Sputtering
A plasma lens, consisting of a solenoid and potential-defining ring electrodes, has been placed between a magnetron and substrates to be coated. Photography reveals qualitative information on excitation, ionization, and the transport of plasma to the substrate.
Date:
November 30, 2010
Creator:
Anders, Andre & Brown, Jeff
Object Type:
Article
System:
The UNT Digital Library
Pore-scale mechanisms of gas flow in tight sand reservoirs
Tight gas sands are unconventional hydrocarbon energy resource storing large volume of natural gas. Microscopy and 3D imaging of reservoir samples at different scales and resolutions provide insights into the coaredo not significantly smaller in size than conventional sandstones, the extremely dense grain packing makes the pore space tortuous, and the porosity is small. In some cases the inter-granular void space is presented by micron-scale slits, whose geometry requires imaging at submicron resolutions. Maximal Inscribed Spheres computations simulate different scenarios of capillary-equilibrium two-phase fluid displacement. For tight sands, the simulations predict an unusually low wetting fluid saturation threshold, at which the non-wetting phase becomes disconnected. Flow simulations in combination with Maximal Inscribed Spheres computations evaluate relative permeability curves. The computations show that at the threshold saturation, when the nonwetting fluid becomes disconnected, the flow of both fluids is practically blocked. The nonwetting phase is immobile due to the disconnectedness, while the permeability to the wetting phase remains essentially equal to zero due to the pore space geometry. This observation explains the Permeability Jail, which was defined earlier by others. The gas is trapped by capillarity, and the brine is immobile due to the dynamic effects. At the same time, in …
Date:
November 30, 2010
Creator:
Silin, D.; Kneafsey, T.J.; Ajo-Franklin, J.B. & Nico, P.
Object Type:
Report
System:
The UNT Digital Library
PUBLIC AND REGULATORY ACCEPTANCE OF BLENDING OF RADIOACTIVE WASTE VS DILUTION
On April 21, 2009, the Energy Facilities Contractors Group (EFCOG) Waste Management Working Group (WMWG) provided a recommendation to the Department of Energy's Environmental Management program (DOE-EM) concerning supplemental guidance on blending methodologies to use to classify waste forms to determine if the waste form meets the definition of Transuranic (TRU) Waste or can be classified as Low-Level Waste (LLW). The guidance provides specific examples and methods to allow DOE and its Contractors to properly classify waste forms while reducing the generation of TRU wastes. TRU wastes are much more expensive to characterize at the generator's facilities, ship, and then dispose at the Waste Isolation Pilot Plant (WIPP) than Low-Level Radioactive Waste's disposal. Also the reduction of handling and packaging of LLW is inherently less hazardous to the nuclear workforce. Therefore, it is important to perform the characterization properly, but in a manner that minimizes the generation of TRU wastes if at all possible. In fact, the generation of additional volumes of radioactive wastes under the ARRA programs, this recommendation should improve the cost effective implementation of DOE requirements while properly protecting human health and the environment. This paper will describe how the message of appropriate, less expensive, less hazardous …
Date:
November 30, 2010
Creator:
Goldston, W.
Object Type:
Article
System:
The UNT Digital Library
Public Transportation: Transit Agencies' Actions to Address Increased Ridership Demand and Options to Help Meet Future Demand
A letter report issued by the Government Accountability Office with an abstract that begins "Demand for public transportation in the United States reached record highs in 2008 and rose in the decade prior to 2008. Increased demand for public transportation can create opportunities and challenges for communities working to meet demand, improve service, and maintain transit systems, while operating within budgetary constraints. Transit agencies rely on a variety of funding sources, including federal, state, and local entities, and other sources, such as fares. The U.S. Department of Transportation's (DOT) Federal Transit Administration administers federal grant programs transit agencies can use to help meet ridership demand, such as for purchasing buses and modernizing rail systems. As requested, this report addresses (1) trends in transit ridership and services from 1998 through 2008, (2) challenges, if any, transit agencies faced during this period to address increased ridership and actions they took in response, and (3) factors that might affect future ridership demand and the ability of transit agencies to meet that demand. GAO analyzed data from the National Transit Database on transit ridership (i.e., passenger miles traveled), service (i.e., vehicle revenue miles), costs, and revenues; conducted interviews with 15 transit agencies operating heavy …
Date:
November 30, 2010
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Puget Sound Dissolved Oxygen Modeling Study: Development of an Intermediate-Scale Hydrodynamic Model
The Washington State Department of Ecology contracted with Pacific Northwest National Laboratory to develop an intermediate-scale hydrodynamic and water quality model to study dissolved oxygen and nutrient dynamics in Puget Sound and to help define potential Puget Sound-wide nutrient management strategies and decisions. Specifically, the project is expected to help determine 1) if current and potential future nitrogen loadings from point and non-point sources are significantly impairing water quality at a large scale and 2) what level of nutrient reductions are necessary to reduce or dominate human impacts to dissolved oxygen levels in the sensitive areas. In this study, an intermediate-scale hydrodynamic model of Puget Sound was developed to simulate the hydrodynamics of Puget Sound and the Northwest Straits for the year 2006. The model was constructed using the unstructured Finite Volume Coastal Ocean Model. The overall model grid resolution within Puget Sound in its present configuration is about 880 m. The model was driven by tides, river inflows, and meteorological forcing (wind and net heat flux) and simulated tidal circulations, temperature, and salinity distributions in Puget Sound. The model was validated against observed data of water surface elevation, velocity, temperature, and salinity at various stations within the study domain. …
Date:
November 30, 2010
Creator:
Yang, Zhaoqing; Khangaonkar, Tarang; Labiosa, Rochelle G. & Kim, Taeyun
Object Type:
Report
System:
The UNT Digital Library
Rains County Leader (Emory, Tex.), Vol. 124, No. 25, Ed. 1 Tuesday, November 30, 2010
Weekly newspaper from Emory, Texas that includes local, state, and national news along with advertising.
Date:
November 30, 2010
Creator:
Hill, Earl Clyde, Jr.
Object Type:
Newspaper
System:
The Portal to Texas History
Robust Computation of Morse-Smale Complexes of Bilinear Functions
The Morse-Smale (MS) complex has proven to be a useful tool in extracting and visualizing features from scalar-valued data. However, existing algorithms to compute the MS complex are restricted to either piecewise linear or discrete scalar fields. This paper presents a new combinatorial algorithm to compute MS complexes for two dimensional piecewise bilinear functions defined on quadrilateral meshes. We derive a new invariant of the gradient flow within a bilinear cell and use it to develop a provably correct computation which is unaffected by numerical instabilities. This includes a combinatorial algorithm to detect and classify critical points as well as a way to determine the asymptotes of cell-based saddles and their intersection with cell edges. Finally, we introduce a simple data structure to compute and store integral lines on quadrilateral meshes which by construction prevents intersections and enables us to enforce constraints on the gradient flow to preserve known invariants.
Date:
November 30, 2010
Creator:
Norgard, G. & Bremer, P. T.
Object Type:
Article
System:
The UNT Digital Library
Role of nuclear dynamics in the Asymmetric molecular-frame photoelectron angular distributions for C 1s photoejection from CO{sub 2}
We report the results of semiclassical calculations of the asymmetric molecular-frame photoelectron angular distributions for C 1s ionization of CO{sub 2} measured with respect to the CO{sup +} and O{sup +} ions produced by subsequent Auger decay, and show how the decay event can be used to probe ultrafast molecular dynamics of the transient cation. The fixed-nuclei photoionization amplitudes were constructed using variationally obtained electron-molecular ion scattering wave functions. The amplitudes are then used in a semiclassical manner to investigate their dependence on the nuclear dynamics of the cation. The method introduced here can be used to study other core-level ionization events.
Date:
November 30, 2010
Creator:
Miyabe, Shungo; Haxton, Dan; Rescigno, Tom & McCurdy, Bill
Object Type:
Article
System:
The UNT Digital Library
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 96, No. 55, Ed. 1 Tuesday, November 30, 2010
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
November 30, 2010
Creator:
Harmon, C. L.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Sexual Violence in African Conflicts
This report covers the issue of sexual violence in the midst of civil conflict in African nations. Civilians in Africa's conflict zones are often vulnerable to sexual violence, including rape, mutilation, and sexual slavery. This violence is carried out by government security forces and non-state actors, including, rebel groups, militias, and criminal organizations. Some abuses appear to be opportunistic, or the product of a larger breakdown in the rule of law and social order that may occur amid conflict.
Date:
November 30, 2010
Creator:
Arieff, Alexis
Object Type:
Report
System:
The UNT Digital Library
Simulating Collisions for Hydrokinetic Turbines. FY2010 Annual Progress Report.
Computational fluid dynamics (CFD) simulations of turbulent flow and particle motion are being conducted to evaluate the frequency and severity of collisions between marine and hydrokinetic (MHK) energy devices and debris or aquatic organisms. The work is part of a collaborative research project between Pacific Northwest National Laboratory (PNNL) and Sandia National Laboratories , funded by the U.S. Department of Energy Office of Energy Efficiency and Renewable Energy Wind and Water Power Program. During FY2010 a reference design for an axial flow MHK turbine was used to develop a computational geometry for inclusion into a CFD model. Unsteady simulations of turbulent flow and the moving MHK turbine blades are being performed and the results used for simulation of particle trajectories. Preliminary results and plans for future work are presented.
Date:
November 30, 2010
Creator:
Richmond, Marshall C.; Rakowski, Cynthia L.; Perkins, William A. & Serkowski, John A.
Object Type:
Report
System:
The UNT Digital Library
Speaking on the House Floor: Gaining Time and Parliamentary Phraseology
This report discusses general clarification guidelines regarding House rules and precedents structure Members' opportunities to speak on the floor about pending legislation.
Date:
November 30, 2010
Creator:
Rybicki, Elizabeth
Object Type:
Report
System:
The UNT Digital Library
Sudan Divestment: U.S. Investors Sold Assets but Could Benefit from Additional Information about Companies' Ties to Sudan
Testimony issued by the Government Accountability Office with an abstract that begins "Recognizing the humanitarian crisis in Darfur, Sudan, Congress enacted the Sudan Accountability and Divestment Act (SADA) in 2007. This law supports U.S. states' and investment companies' decisions to divest from companies with certain business ties to Sudan. It also seeks to prohibit federal contracting with these companies. This testimony (1) identifies actions that U.S. state fund managers and investment companies took regarding Sudan-related assets, (2) describes the factors that these entities considered in determining whether and how to divest, and (3) determines whether the U.S. government has contracted with companies identified as having certain Sudan-related business operations and assesses compliance with SADA's federal contract prohibition provision. This testimony is based on a GAO report (GAO-10-742), for which GAO surveyed states, analyzed investment data, assessed federal contracts, and interviewed government officials."
Date:
November 30, 2010
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Suspension of the Rules in the House: Principal Features
None
Date:
November 30, 2010
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Sweetwater Reporter (Sweetwater, Tex.), Vol. 113, No. 013, Ed. 1 Tuesday, November 30, 2010
Daily newspaper from Sweetwater, Texas that includes local, state, and national news along with advertising.
Date:
November 30, 2010
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Swisher County News (Tulia, Tex.), Vol. 2, No. 46, Ed. 1 Tuesday, November 30, 2010
Weekly newspaper from Tulia, Texas that includes local, state, and national news along with extensive advertising.
Date:
November 30, 2010
Creator:
Hooten, Patsy
Object Type:
Newspaper
System:
The Portal to Texas History
TIMELY DELIVERY OF LASER INERTIAL FUSION ENERGY (LIFE)
The National Ignition Facility (NIF), the world's largest and most energetic laser system, is now operational at Lawrence Livermore National Laboratory. A key goal of the NIF is to demonstrate fusion ignition for the first time in the laboratory. Its flexibility allows multiple target designs (both indirect and direct drive) to be fielded, offering substantial scope for optimization of a robust target design. In this paper we discuss an approach to generating gigawatt levels of electrical power from a laser-driven source of fusion neutrons based on these demonstration experiments. This 'LIFE' concept enables rapid time-to-market for a commercial power plant, assuming success with ignition and a technology demonstration program that links directly to a facility design and construction project. The LIFE design makes use of recent advances in diode-pumped, solid-state laser technology. It adopts the paradigm of Line Replaceable Units utilized on the NIF to provide high levels of availability and maintainability and mitigate the need for advanced materials development. A demonstration LIFE plant based on these design principles is described, along with the areas of technology development required prior to plant construction. A goal-oriented, evidence-based approach has been proposed to allow LIFE power plant rollout on a time scale …
Date:
November 30, 2010
Creator:
Dunne, A M
Object Type:
Article
System:
The UNT Digital Library
U.S. Fossil Fuel Resources: Terminology, Reporting, and Summary
This report describes the characteristics of fossil fuels that make it necessary to use precise terminology, summarizes the major terms and their meanings, and provides a brief summary of the United States' endowment of fossil fuels and the relationship between the U.S. fossil fuel energy endowment and those of other nations.
Date:
November 30, 2010
Creator:
Whitney, Gene; Behrens, Carl E. & Glover, Carol
Object Type:
Report
System:
The UNT Digital Library
UC Merced Center for Computational Biology Final Report
Final report for the UC Merced Center for Computational Biology. The Center for Computational Biology (CCB) was established to support multidisciplinary scientific research and academic programs in computational biology at the new University of California campus in Merced. In 2003, the growing gap between biology research and education was documented in a report from the National Academy of Sciences, Bio2010 Transforming Undergraduate Education for Future Research Biologists. We believed that a new type of biological sciences undergraduate and graduate programs that emphasized biological concepts and considered biology as an information science would have a dramatic impact in enabling the transformation of biology. UC Merced as newest UC campus and the first new U.S. research university of the 21st century was ideally suited to adopt an alternate strategy - to create a new Biological Sciences majors and graduate group that incorporated the strong computational and mathematical vision articulated in the Bio2010 report. CCB aimed to leverage this strong commitment at UC Merced to develop a new educational program based on the principle of biology as a quantitative, model-driven science. Also we expected that the center would be enable the dissemination of computational biology course materials to other university and feeder institutions, …
Date:
November 30, 2010
Creator:
Colvin, Michael & Watanabe, Masakatsu
Object Type:
Report
System:
The UNT Digital Library
[Allison Fudge Garcia speaking]
Photograph of Allison Fudge Garcia, a Teach North Texas student, standing behind a podium and holding a green ribbon in her hand. The speaker from earlier is standing to the side by a doorway to the outside. They are at the UNT College of Education Grad Banquet.
Date:
November 29, 2010
Creator:
Reynolds, Jonathan
Object Type:
Photograph
System:
The UNT Digital Library
Allocations and Subdivisions in the Congressional Budget Process
This report very briefly discusses the allocations and subdivisions portions of the congressional budget process.
Date:
November 29, 2010
Creator:
Heniff, Bill, Jr.
Object Type:
Report
System:
The UNT Digital Library
Analysis Efforts Supporting NSTX Upgrades
The National Spherical Torus Experiment (NSTX) is a low aspect ratio, spherical torus (ST) configuration device which is located at Princeton Plasma Physics Laboratory (PPPL) This device is presently being updated to enhance its physics by doubling the TF field to 1 Tesla and increasing the plasma current to 2 Mega-amperes. The upgrades include a replacement of the centerstack and addition of a second neutral beam. The upgrade analyses have two missions. The first is to support design of new components, principally the centerstack, the second is to qualify existing NSTX components for higher loads, which will increase by a factor of four. Cost efficiency was a design goal for new equipment qualification, and reanalysis of the existing components. Showing that older components can sustain the increased loads has been a challenging effort in which designs had to be developed that would limit loading on weaker components, and would minimize the extent of modifications needed. Two areas representing this effort have been chosen to describe in more details: analysis of the current distribution in the new TF inner legs, and, second, analysis of the out-of-plane support of the existing TF outer legs.
Date:
November 29, 2010
Creator:
H.Zhang, P. Titus, P. Rogoff, A.Zolfaghari, D. Mangra, M. Smith
Object Type:
Article
System:
The UNT Digital Library