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ADVANCED SIMULATION CAPABILITY FOR ENVIRONMENTAL MANAGEMENT- CURRENT STATUS AND PHASE II DEMONSTRATION RESULTS
The U.S. Department of Energy (USDOE) Office of Environmental Management (EM), Office of Soil and Groundwater, is supporting development of the Advanced Simulation Capability for Environmental Management (ASCEM). ASCEM is a state-of-the-art scientific tool and approach for understanding and predicting contaminant fate and transport in natural and engineered systems. The modular and open source high-performance computing tool facilitates integrated approaches to modeling and site characterization that enable robust and standardized assessments of performance and risk for EM cleanup and closure activities. The ASCEM project continues to make significant progress in development of computer software capabilities with an emphasis on integration of capabilities in FY12. Capability development is occurring for both the Platform and Integrated Toolsets and High-Performance Computing (HPC) Multiprocess Simulator. The Platform capabilities provide the user interface and tools for end-to-end model development, starting with definition of the conceptual model, management of data for model input, model calibration and uncertainty analysis, and processing of model output, including visualization. The HPC capabilities target increased functionality of process model representations, toolsets for interaction with Platform, and verification and model confidence testing. The Platform and HPC capabilities are being tested and evaluated for EM applications in a set of demonstrations as part …
Date:
February 26, 2013
Creator:
Seitz, R.
System:
The UNT Digital Library
Analytical shock solutions at large and small Prandtl number
None
Date:
February 26, 2013
Creator:
Johnson, B M
System:
The UNT Digital Library
D and Ds Spectroscopy
None
Date:
March 26, 2013
Creator:
Schroder, T. & /Ruhr U., Bochum
System:
The UNT Digital Library
Characterizing surplus US plutonium for disposition
The United States (US) has identified 61.5 metric tons (MT) of plutonium that is permanently excess to use in nuclear weapons programs, including 47.2 MT of weapons-grade plutonium. Surplus inventories will be stored safely by the Department of Energy (DOE) and then transferred to facilities that will prepare the plutonium for permanent disposition. The Savannah River National Laboratory (SRNL) operates a Feed Characterization program for the Office of Fissile Materials Disposition (OFMD) of the National Nuclear Security Administration (NNSA) and the DOE Office of Environmental Management (DOE-EM). SRNL manages a broad program of item tracking through process history, laboratory analysis, and non-destructive assay. A combination of analytical techniques allows SRNL to predict the isotopic and chemical properties that qualify materials for disposition through the Mixed Oxide (MOX) Fuel Fabrication Facility (MFFF). The research also defines properties that are important for other disposition paths, including disposal to the Waste Isolation Pilot Plant (WIPP) as transuranic waste (TRUW) or to high-level waste (HLW) systems.
Date:
February 26, 2013
Creator:
Allender, Jeffrey S. & Moore, Edwin N.
System:
The UNT Digital Library
Conformal Symmetry, Color Confinement, and Light-Front Holographic QCD
None
Date:
February 26, 2013
Creator:
Brodsky, Stanley J.; de Teramond, Guy F. & Dosch, Hans Gunter
System:
The UNT Digital Library
Designing And Implementing LabVIEW Solutions For Re-Use
None
Date:
September 26, 2013
Creator:
Flegel, M.; Larkin, G.; Lagin, L. & Demaret, B.
System:
The UNT Digital Library
Evaluating radiation-induced noise effects on pixelated sensors for the National Ignition Facility
None
Date:
August 26, 2013
Creator:
Datte, P; Eckart, M; Jackson, M; Khater, H; Newton, M & Manuel, S
System:
The UNT Digital Library
Evolution Of USDOE Performance Assessments Over 20 Years
Performance assessments (PAs) have been used for many years for the analysis of post-closure hazards associated with a radioactive waste disposal facility and to provide a reasonable expectation of the ability of the site and facility design to meet objectives for the protection of members of the public and the environment. The use of PA to support decision-making for LLW disposal facilities has been mandated in United States Department of Energy (USDOE) directives governing radioactive waste management since 1988 (currently DOE Order 435.1, Radioactive Waste Management). Prior to that time, PAs were also used in a less formal role. Over the past 20+ years, the USDOE approach to conduct, review and apply PAs has evolved into an efficient, rigorous and mature process that includes specific requirements for continuous improvement and independent reviews. The PA process has evolved through refinement of a graded and iterative approach designed to help focus efforts on those aspects of the problem expected to have the greatest influence on the decision being made. Many of the evolutionary changes to the PA process are linked to the refinement of the PA maintenance concept that has proven to be an important element of USDOE PA requirements in the …
Date:
February 26, 2013
Creator:
Seitz, Roger R. & Suttora, Linda C.
System:
The UNT Digital Library
An Exploratory Evaluation of Tyrosine Hydroxylase Inhibition in Planaria as a Model for Parkinsonism
Study examines planaria as potential models of parkinsonism for the purpose of screening potential therapeutic agents.
Date:
November 26, 2013
Creator:
Prokai, David; Nguyen, Thinh; Kamrowski, Kurt; Chandra, Ashwin; Talamantes, Tatjana; Baxter, Lewis R. et al.
System:
The UNT Digital Library
Features in Deep Learning Architectures with Unsupervised Kernel k-Means
None
Date:
September 26, 2013
Creator:
Ni, K S & Prenger, R J
System:
The UNT Digital Library
Garcinol, a Polyisoprenylated Benzophenone Modulates Multiple Proinflammatory Signaling Cascades Leading to the Suppression of Growth and Survival of Head and Neck Carcinoma
Article on the constitutive activation of proinflammatory transcription factors such as STAT3 and NF-KB that play a pivotal role in the proliferation and survival of squamous cell carcinoma of the head and neck (HNSCC).
Date:
June 26, 2013
Creator:
Li, Feng; Shanmugam, Muthu K.; Chen, Luxi; Chatterjee, Snehajyoti; Basha, Jeelan; Kumar, Alan Prem et al.
System:
The UNT Digital Library
High Average Brightness Photocathode Development for FEL Applications
N/A
Date:
August 26, 2013
Creator:
T., Rao; Ben-Zvi, Ilan; Skarita, J. & Wang, E.
System:
The UNT Digital Library
NIF Electronic Operations: Improving Productivity With Ipad Application Development
None
Date:
September 26, 2013
Creator:
Potter, D.; Reisdorf, S. & Palma, E.
System:
The UNT Digital Library
Operational Experience with Optical Streak Cameras used on the National Ignition Facility
None
Date:
August 26, 2013
Creator:
Datte, P.; Bond, E.; Celliers, P.; Hibbard, R.; Kalantar, D.; Krauter, K. et al.
System:
The UNT Digital Library
Possible Suppression of Resonant Signals for Split-UED by Mixing at the LHC?
None
Date:
August 26, 2013
Creator:
Rizzo, Thomas G.
System:
The UNT Digital Library
Predicting Application Performance using Supervised Learning on Communication Features
None
Date:
April 26, 2013
Creator:
Jain, N; Bhatele, A; Robson, M P; Gamblin, T & Kale, L V
System:
The UNT Digital Library
Rapid Application Development Using Web-2.0 Technologies
None
Date:
September 26, 2013
Creator:
Reisdorf, S; Conrad, B; Potter, D; Hutton, M & Reisdorf, P
System:
The UNT Digital Library
Search for Neutrinoless Double-Beta Decay in $^{136}$Xe with EXO-200
None
Date:
March 26, 2013
Creator:
Auger, M.; Auty, D. J.; Barbeau, P. S.; Beauchamp, E.; Belov, V.; Benitez-Medina, C. et al.
System:
The UNT Digital Library
Statistical Performance Evaluation Of Soft Seat Pressure Relief Valves
Risk-based inspection methods enable estimation of the probability of failure on demand for spring-operated pressure relief valves at the United States Department of Energy's Savannah River Site in Aiken, South Carolina. This paper presents a statistical performance evaluation of soft seat spring operated pressure relief valves. These pressure relief valves are typically smaller and of lower cost than hard seat (metal to metal) pressure relief valves and can provide substantial cost savings in fluid service applications (air, gas, liquid, and steam) providing that probability of failure on demand (the probability that the pressure relief valve fails to perform its intended safety function during a potentially dangerous over pressurization) is at least as good as that for hard seat valves. The research in this paper shows that the proportion of soft seat spring operated pressure relief valves failing is the same or less than that of hard seat valves, and that for failed valves, soft seat valves typically have failure ratios of proof test pressure to set pressure less than that of hard seat valves.
Date:
March 26, 2013
Creator:
Harris, Stephen P. & Gross, Robert E.
System:
The UNT Digital Library
Study of Thermal Sensitivity and Thermal Explosion Violence of Energetic Materials in the LLNL ODTX System
None
Date:
August 26, 2013
Creator:
Hsu, P. C.; Hust, G.; Zhang, M. X.; Lorenz, T. K.; Reynolds, J. G.; Fried, L. et al.
System:
The UNT Digital Library
Teaching Individuals With Autism Spectrum Disorder to Ask Questions: A Systematic Review
This article provides a review involving a systematic search and analysis of studies aimed at teaching individuals with autism spectrum disorder (ASD) to ask questions.
Date:
March 22, 2013
Creator:
Raulston, Tracy; Carnett, Amarie; Lang, Russell; Tostanoski, Amy; Lee, Allyson; Machalicek, Wendy et al.
System:
The UNT Digital Library
Weld Repair of a Stamped Pressure Vessel in a Radiologically Controlled Zone
In September 2012 an ASME B&PVC Section VIII stamped pressure vessel located at the DOE Hanford Site Effluent Treatment Facility (ETF) developed a through-wall leak. The vessel, a steam/brine heat exchanger, operated in a radiologically controlled zone (by the CH2MHill PRC or CHPRC), had been in service for approximately 17 years. The heat exchanger is part of a single train evaporator process and its failure caused the entire system to be shut down, significantly impacting facility operations. This paper describes the activities associated with failure characterization, technical decision making/planning for repair by welding, logistical challenges associated with performing work in a radiologically controlled zone, performing the repair, and administrative considerations related to ASME code requirements.
Date:
August 26, 2013
Creator:
Cannell, Gary L.; Huth, Ralph J. & Hallum, Randall T.
System:
The UNT Digital Library
X-ray Diffraction Diagnostic Design for the National Ignition Facility
None
Date:
July 26, 2013
Creator:
Ahmed, M; House, A; Smith, R F; Lamb, Z & Swift, D W
System:
The UNT Digital Library