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MODIFIED FINITE ELEMENT TRANSPORT MODEL, FETRA, FOR SEDIMENT AND RAOIONUCLIDE MIGRATION IN OPEN COASTAL WATERS

MODIFIED FINITE ELEMENT TRANSPORT MODEL, FETRA, FOR SEDIMENT AND RAOIONUCLIDE MIGRATION IN OPEN COASTAL WATERS

Date: August 1, 1979
Creator: ,
Description: The finite element model, FETRA, simulates transport of sediment and radionuclides (and other contaminants, such as heavy metals, pesticides, and other toxic substances) in surface water bodies. The model is an unsteady, two-dimensional (longitudinal and lateral} model which consists of the following three submodels coupled to include sediment-contaminant interactions: 1) sediment transport submodel, 2} dissolved contaminant transport submodel, and 3) particulate contaminant (contaminant adsorbed by sediment) transport submodel. Under the current phase of the study, FETRA was modified to include sediment-wave interaction in order to extend the applicability of the model to coastal zones and large lakes (e.g., the Great Lakes) where wave actions can be one of the dominant mechanisms to transport sediment and toxic contaminant. FETRA was further modified to handle both linear and quadratic approximations to velocity and depth distributions in order to be compatible with various finite element hydrodynamic models (e.g., RMA II and CAFE) which supply hydrodynamic input data to FETRA. The next step is to apply FETRA to coastal zones to simulate transport of sediment and radionuclides with their interactions in order to test and verify the model under marine and large lacustrine environments.
Contributing Partner: UNT Libraries Government Documents Department
Direct Numerical Simulation of Autoignition in a Jet in a Cross-Flow Configuration: ALCF-2 Early Science Program Technical Report

Direct Numerical Simulation of Autoignition in a Jet in a Cross-Flow Configuration: ALCF-2 Early Science Program Technical Report

Date: May 14, 2013
Creator: Abdilghanie, A.; Frouzakis, C.E.; Fischer, P.F. (LCF); MCS), ( & Zurich), (ETH
Description: Abstract not provided
Contributing Partner: UNT Libraries Government Documents Department
A Method of Optimizing Field Roll-Off and the Peak Field of Hybrid Planar Undulators

A Method of Optimizing Field Roll-Off and the Peak Field of Hybrid Planar Undulators

Date: October 7, 2013
Creator: Abliz, M. & Vasserman, I. (Accelerator Systems Division (APS)) Accelerator Systems Division (APS)
Description: Abstract not provided
Contributing Partner: UNT Libraries Government Documents Department
Diagnostic examination of Generation 2 lithium-ion cells and assessment ofperformance degradation mechanisms.

Diagnostic examination of Generation 2 lithium-ion cells and assessment ofperformance degradation mechanisms.

Date: July 15, 2005
Creator: Abraham, D. P.; Dees, D. W.; Knuth, J.; Reynolds, E.; Gerald, R.; Hyung,Y.-E. et al.
Description: The Advanced Technology Development (ATD) Program is a multilaboratory effort to assist industrial developers of high-power lithium-ion batteries overcome the barriers of cost, calendar life, abuse tolerance, and low-temperature performance so that this technology may be rendered practical for use in hybrid electric vehicles (HEVs). Included in the ATD Program is a comprehensive diagnostics effort conducted by researchers at Argonne National Laboratory (ANL), Brookhaven National Laboratory (BNL), and Lawrence Berkeley National Laboratory (LBNL). The goals of this effort are to identify and characterize processes that limit lithium-ion battery performance and calendar life, and ultimately to describe the specific mechanisms that cause performance degradation. This report is a compilation of the diagnostics effort conducted since spring 2001 to characterize Generation 2 ATD cells and cell components. The report is divided into a main body and appendices. Information on the diagnostic approach, details from individual diagnostic techniques, and details on the phenomenological model used to link the diagnostic data to the loss of 18650-cell electrochemical performance are included in the appendices. The main body of the report includes an overview of the 18650-cell test data, summarizes diagnostic data and modeling information contained in the appendices, and provides an assessment of the various ...
Contributing Partner: UNT Libraries Government Documents Department
Nuclear data: progress report on sensitivity analysis at ANL in FY2012. The TRAPU Experiment

Nuclear data: progress report on sensitivity analysis at ANL in FY2012. The TRAPU Experiment

Date: November 20, 2012
Creator: Aliberti, G. (Nuclear Engineering Division)
Description: Abstract not provided
Contributing Partner: UNT Libraries Government Documents Department
Impact of spectral transition zone in reference ENIGMA configuration.

Impact of spectral transition zone in reference ENIGMA configuration.

Date: October 5, 2005
Creator: Aliberti, G.; Palmiotti, G.; Taiwo, T. A. & Tommasi, J.
Description: The gas-cooled fast reactor (GFR) is one of six advanced nuclear energy systems being studied under the auspices of the Gen IV International Forum (GIF). In a bilateral International Nuclear Energy Research Initiative (I-NERI) project French and U.S. national laboratories, industry, and universities are collaborating on the development of the GFR. This effort is led by the ANL in the U.S. and the CEA in France. Some of the attractions of the GFR include: (1) Hard spectrum and core breeding ratio, BR {approx} 1. These features allow minimal waste production, improved transmutation capability, optimal and flexible use of natural resources, potentially better economy (because of use of higher power density relative to current thermal gas-cooled systems), and improved non-proliferation (no fertile blanket); (2) Temperature resistant fuel and structure elements that are favorable to tight fission product confinement and system operation at high temperature; (3) High temperature and transparent helium (He) gas coolant that allows a high thermodynamic conversion efficiency, other energy applications (e.g., hydrogen production), and ease of in-service inspection and repair; and (4) Possible direct energy conversion cycle leading to a simpler design, increased conversion efficiency, and lower investment costs. The French strategy for advanced systems includes the development ...
Contributing Partner: UNT Libraries Government Documents Department
Update of distillers grains displacement ratios for corn ethanol life-cycle analysis.

Update of distillers grains displacement ratios for corn ethanol life-cycle analysis.

Date: February 1, 2011
Creator: Arora, S.; Wu, M.; Wang, M. & Systems, Energy
Description: Production of corn-based ethanol (either by wet milling or by dry milling) yields the following coproducts: distillers grains with solubles (DGS), corn gluten meal (CGM), corn gluten feed (CGF), and corn oil. Of these coproducts, all except corn oil can replace conventional animal feeds, such as corn, soybean meal, and urea. Displacement ratios of corn-ethanol coproducts including DGS, CGM, and CGF were last updated in 1998 at a workshop at Argonne National Laboratory on the basis of input from a group of experts on animal feeds, including Prof. Klopfenstein (University of Nebraska, Lincoln), Prof. Berger (University of Illinois, Urbana-Champaign), Mr. Madson (Rapheal Katzen International Associates, Inc.), and Prof. Trenkle (Iowa State University) (Wang 1999). Table 1 presents current dry milling coproduct displacement ratios being used in the GREET model. The current effort focuses on updating displacement ratios of dry milling corn-ethanol coproducts used in the animal feed industry. Because of the increased availability and use of these coproducts as animal feeds, more information is available on how these coproducts replace conventional animal feeds. To glean this information, it is also important to understand how industry selects feed. Because of the wide variety of available feeds, animal nutritionists use commercial software ...
Contributing Partner: UNT Libraries Government Documents Department
U.S. Department of Energy clean cities five-year strategic plan.

U.S. Department of Energy clean cities five-year strategic plan.

Date: February 15, 2011
Creator: Associates, Cambridge Concord
Description: Clean Cities is a government-industry partnership sponsored by the U.S. Department of Energy's (DOE) Vehicle Technologies Program, which is part of the Office of Energy Efficiency and Renewable Energy. Working with its network of about 100 local coalitions and more than 6,500 stakeholders across the country, Clean Cities delivers on its mission to reduce petroleum consumption in on-road transportation. In its work to reduce petroleum use, Clean Cities focuses on a portfolio of technologies that includes electric drive, propane, natural gas, renewable natural gas/biomethane, ethanol/E85, biodiesel/B20 and higher-level blends, fuel economy, and idle reduction. Over the past 17 years, Clean Cities coalitions have displaced more than 2.4 billion gallons of petroleum; they are on track to displace 2.5 billion gallons of gasoline per year by 2020. This Clean Cities Strategic Plan lays out an aggressive five-year agenda to help DOE Clean Cities and its network of coalitions and stakeholders accelerate the deployment of alternative fuel and advanced technology vehicles, while also expanding the supporting infrastructure to reduce petroleum use. Today, Clean Cities has a far larger opportunity to make an impact than at any time in its history because of its unprecedented $300 million allocation for community-based deployment projects from ...
Contributing Partner: UNT Libraries Government Documents Department
Argonne's Laboratory Computing Resource Center 2009 annual report.

Argonne's Laboratory Computing Resource Center 2009 annual report.

Date: May 13, 2011
Creator: Bair, R. B. (CLS-CI)
Description: Now in its seventh year of operation, the Laboratory Computing Resource Center (LCRC) continues to be an integral component of science and engineering research at Argonne, supporting a diverse portfolio of projects for the U.S. Department of Energy and other sponsors. The LCRC's ongoing mission is to enable and promote computational science and engineering across the Laboratory, primarily by operating computing facilities and supporting high-performance computing application use and development. This report describes scientific activities carried out with LCRC resources in 2009 and the broad impact on programs across the Laboratory. The LCRC computing facility, Jazz, is available to the entire Laboratory community. In addition, the LCRC staff provides training in high-performance computing and guidance on application usage, code porting, and algorithm development. All Argonne personnel and collaborators are encouraged to take advantage of this computing resource and to provide input into the vision and plans for computing and computational analysis at Argonne. The LCRC Allocations Committee makes decisions on individual project allocations for Jazz. Committee members are appointed by the Associate Laboratory Directors and span a range of computational disciplines. The 350-node LCRC cluster, Jazz, began production service in April 2003 and has been a research work horse ever ...
Contributing Partner: UNT Libraries Government Documents Department
Equipment and Method Choices for Concentration and Denitration of the Uranium Product from UREX

Equipment and Method Choices for Concentration and Denitration of the Uranium Product from UREX

Date: August 27, 2013
Creator: Bakel, A.J. & Vandegrift, G.F. (Chemical Sciences and Engineering Division)
Description: Abstract not provided
Contributing Partner: UNT Libraries Government Documents Department
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