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ANL Critical Assembly Covariance Matrix Generation

Description: This report discusses the generation of a covariance matrix for selected critical assemblies that were carried out by Argonne National Laboratory (ANL) using four critical facilities - all of which are now decommissioned.
Date: January 15, 2014
Creator: McKnight, R. D. & Grimm, K. N. (Nuclear Engineering Division)
Partner: UNT Libraries Government Documents Department
open access

Investigation of WO{sub 3}-Based H{sub 2}S Sensor Materials for Coal Gasification Systems

Description: The aim of this project was to engineer the materials studied to enhance the so-called 3S criteria: Sensitivity, Selectivity, and Stability, by using the advantage of controlling structure and properties at nanometer dimensions. It targeted sensor materials that are able to detect poisonous gases resulting from coal-gasification processes, especially sulfur containing emissions. Research findings based on this award demonstrate that doping tungsten oxide (WO{sub 3}) with a small amount of Ti (e… more
Date: December 15, 2013
Creator: Manciu, Felicia & Ramana, Chintalapalle
Partner: UNT Libraries Government Documents Department
open access

Final report for DOE Grant No. DE-SC0006609 - Persistence of Microbially Facilitated Calcite Precipitation as an in situ Treatment for Strontium-90

Description: Subsurface radionuclide and metal contaminants throughout the U.S. Department of Energy (DOE) complex pose one of DOE?s greatest challenges for long-term stewardship. One promising stabilization mechanism for divalent ions, such as the short-lived radionuclide Sr-90, is co-precipitation in calcite. We have previously found that nutrient addition can stimulate microbial ureolytic activity, that this activity accelerates calcite precipitation and co-precipitation of Sr, and that higher calcite pr… more
Date: November 15, 2013
Creator: Smith, Robert W. & Fujita, Yoshiko
Partner: UNT Libraries Government Documents Department
open access

UV Excited Photoacoustic Raman

Description: No Description Available.
Date: November 15, 2013
Creator: Carter, J; Chambers, D; Steele, P; Haugen, P & Heller, D
Partner: UNT Libraries Government Documents Department
open access

Architecture-Aware Algorithms for Scalable Performance and Resilience on Heterogeneous Architectures

Description: The goal of the Extreme-scale Algorithms & Software Institute (EASI) is to close the �application-architecture performance gap� by exploring algorithms and runtime improvements that will enable key science applications to better exploit the architectural features of DOE extreme-scale systems. For the past year of the project, our efforts at the University of Tennessee have concentrated on, and made significant progress related to, the following high-level EASI goals: � Develop multi-precision a… more
Date: October 15, 2013
Creator: Dongarra, Jack
Partner: UNT Libraries Government Documents Department
open access

Final Report: Large-Scale Optimization for Bayesian Inference in Complex Systems

Description: The SAGUARO (Scalable Algorithms for Groundwater Uncertainty Analysis and Robust Optimiza- tion) Project focuses on the development of scalable numerical algorithms for large-scale Bayesian inversion in complex systems that capitalize on advances in large-scale simulation-based optimiza- tion and inversion methods. Our research is directed in three complementary areas: efficient approximations of the Hessian operator, reductions in complexity of forward simulations via stochastic spectral appro… more
Date: October 15, 2013
Creator: Ghattas, Omar
Partner: UNT Libraries Government Documents Department
open access

Future Automotive Aftertreatment Solutions: The 150°C Challenge Workshop Report

Description: With future fuel economy standards enacted, the U.S. automotive manufacturers (OEMs) are committed to pursuing a variety of high risk/highly efficient stoichiometric and lean combustion strategies to achieve superior performance. In recognition of this need, the U.S. Department of Energy (DOE) has partnered with domestic automotive manufacturers through U.S. DRIVE to develop these advanced technologies. However, before these advancements can be introduced into the U.S. market, they must also be… more
Date: October 15, 2013
Creator: Zammit, Michael; DiMaggio, Craig L.; Kim, Chang H.; Lambert, Christine; Muntean, George G.; Peden, Charles HF et al.
Partner: UNT Libraries Government Documents Department
open access

Integrated Genome-Based Studies of Shewanella Ecophysiology

Description: This project had as its goals the understanding of the ecophysiology of the genus Shewanella using various genomics approaches. As opposed to other programs involving Shewanella, this one branched out into the various areas in which Shewanella cells are active, and included both basic and applied studies. All of the work was, to some extent, related to the ability of the bacteria to accomplish electron exchange between the cell and solid state electron acceptors and/or electron donors, a proces… more
Date: October 15, 2013
Creator: Nealson, Kenneth H.
Partner: UNT Libraries Government Documents Department
open access

Radionuclide Retention in Concrete Wasteforms - FY13

Description: Assessing long-term performance of Category 3 waste cement grouts for radionuclide encasement requires knowledge of the radionuclide-cement interactions and mechanisms of retention (i.e., sorption or precipitation); the mechanism of contaminant release; the significance of contaminant release pathways; how wasteform performance is affected by the full range of environmental conditions within the disposal facility; the process of wasteform aging under conditions that are representative of proces… more
Date: October 15, 2013
Creator: Snyder, Michelle MV; Golovich, Elizabeth C.; Wellman, Dawn M.; Crum, Jarrod V.; Lapierre, Robert; Dage, Denomy C. et al.
Partner: UNT Libraries Government Documents Department
open access

The RHIC polarized source upgrade

Description: N/A
Date: October 15, 2013
Creator: A., Zelenski; Atoian, G.; Ritter, J.; Steski, D.; Davydenko, V.; Ivanov, A. et al.
Partner: UNT Libraries Government Documents Department
open access

WET-NZ Multi-Mode Wave Energy Converter Advancement Project

Description: The overall objective of the project was to verify the ocean wavelength functionality of the WET-NZ through targeted hydrodynamic testing at wave tank scale and controlled open sea deployment of a 1/2 scale (1:2) experimental device. This objective was accomplished through a series of tasks designed to achieve four specific goals: Wave Tank Testing to Characterize Hydrodynamic Characteristics;  Open-Sea Testing of a New 1:2 Scale Experimental Model;  Synthesis and Analys… more
Date: October 15, 2013
Creator: Kopf, Steven
Partner: UNT Libraries Government Documents Department
open access

Assessment of Energy Production Potential from Ocean Currents along the United States Coastline

Description: Increasing energy consumption and depleting reserves of fossil fuels have resulted in growing interest in alternative renewable energy from the ocean. Ocean currents are an alternative source of clean energy due to their inherent reliability, persistence and sustainability. General ocean circulations exist in the form of large rotating ocean gyres, and feature extremely rapid current flow in the western boundaries due to the Coriolis Effect. The Gulf Stream system is formed by the western bound… more
Date: September 15, 2013
Creator: Haas, Kevin
Partner: UNT Libraries Government Documents Department
open access

High Efficiency Integrated Package

Description: Solid-state lighting based on LEDs has emerged as a superior alternative to inefficient conventional lighting, particularly incandescent. LED lighting can lead to 80 percent energy savings; can last 50,000 hours – 2-50 times longer than most bulbs; and contains no toxic lead or mercury. However, to enable mass adoption, particularly at the consumer level, the cost of LED luminaires must be reduced by an order of magnitude while achieving superior efficiency, light quality and lifetime. To becom… more
Date: September 15, 2013
Creator: Ibbetson, James
Partner: UNT Libraries Government Documents Department
open access

COMPARISON OF RESULTS FOR QUARTER 4 SURFACE WATER SPLIT SAMPLES COLLECTED AT THE NUCLEAR FUELS SERVICES SITE, ERWIN, TN

Description: Oak Ridge Associated Universities (ORAU), under the Oak Ridge Institute for Science and Education (ORISE) contract, collected split surface water samples with Nuclear Fuel Services (NFS) representatives on June 12, 2013. Representatives from the U.S. Nuclear Regulatory Commission (NRC) and the Tennessee Department of Environment and Conservation were also in attendance. Samples were collected at four surface water stations, as required in the approved Request for Technical Assistance number 11-… more
Date: August 15, 2013
Partner: UNT Libraries Government Documents Department
open access

Development of Molten-Salt Heat Transfer Fluid Technology for Parabolic Trough Solar Power Plants - Public Final Technical Report

Description: Executive Summary This Final Report for the "Development of Molten-Salt Heat Transfer Fluid (HTF) Technology for Parabolic Trough Solar Power Plants” describes the overall project accomplishments, results and conclusions. Phase 1 analyzed the feasibility, cost and performance of a parabolic trough solar power plant with a molten salt heat transfer fluid (HTF); researched and/or developed feasible component options, detailed cost estimates and workable operating procedures; and developed hourly … more
Date: August 15, 2013
Creator: Grogan, Dylan C. P.
Partner: UNT Libraries Government Documents Department
open access

Hydrogen Concentration in the Inner-Most Container within a Pencil Tank Overpack Packaged in a Standard Waste Box Package

Description: The purpose of this report is to evaluate hydrogen generation within Pencil Tank Overpacks (PTO) in a Standard Waste Box (SWB), to establish plutonium (Pu) limits for PTOs based on hydrogen concentration in the inner-most container and to establish required configurations or validate existing or proposed configurations for PTOs. The methodology and requirements are provided in this report.
Date: August 15, 2013
Creator: Marusich, Robert M.
Partner: UNT Libraries Government Documents Department
open access

THERMAL PERFORMANCE SENSITIVITY STUDIES IN SUPPORT OF MATERIAL MODELING FOR EXTENDED STORAGE OF USED NUCLEAR FUEL

Description: The work reported here is an investigation of the sensitivity of component temperatures of a storage system, including fuel cladding temperatures, in response to age-related changes that could degrade the design-basis thermal behavior of the system. Three specific areas of interest were identified for this study. • degradation of the canister backfill gas from pure helium to a mixture of air and helium, resulting from postulated leakage due to stress corrosion cracking (SCC) of canister welds •… more
Date: August 15, 2013
Creator: Cuta, Judith M.; Suffield, Sarah R.; Fort, James A. & Adkins, Harold E.
Partner: UNT Libraries Government Documents Department
open access

ADVANCE System Requirements

Description: N/A
Date: July 15, 2013
Creator: Brown, D. A.; Arcilla, R. & Herman, M.
Partner: UNT Libraries Government Documents Department
open access

Analysis Of 2H-Evaporator Scale Pot Bottom Sample [HTF-13-11-28H]

Description: Savannah River Remediation (SRR) is planning to remove a buildup of sodium aluminosilicate scale from the 2H-evaporator pot by loading and soaking the pot with heated 1.5 M nitric acid solution. Sampling and analysis of the scale material from the 2H evaporator has been performed so that the evaporator can be chemically cleaned beginning July of 2013. Historically, since the operation of the Defense Waste Processing Facility (DWPF), silicon in the DWPF recycle stream combines with aluminum in t… more
Date: July 15, 2013
Creator: Oji, L. N.
Partner: UNT Libraries Government Documents Department
open access

Final Scientific/Technical Report Development of Large-Area Photo-Detectors

Description: This proposal requested ADR funds for two years to make measurements and detector proto-types in the context of planning a program in conjunction with Argonne National Laboratory to develop very large-area planar photodetectors. The proposed detectors have integrated transmission-line readout and sampling electronics able to achieve timing and position resolutions in the range of 1-50 psec and 1-10 mm, respectively. The capability for very precise time measurements is inherent in the design, an… more
Date: July 15, 2013
Creator: Frisch, Henry J.
Partner: UNT Libraries Government Documents Department
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