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Safeguards Approaches for Black Box Processes or Facilities (open access)

Safeguards Approaches for Black Box Processes or Facilities

The objective of this study is to determine whether a safeguards approach can be developed for “black box” processes or facilities. These are facilities where a State or operator may limit IAEA access to specific processes or portions of a facility; in other cases, the IAEA may be prohibited access to the entire facility. The determination of whether a black box process or facility is safeguardable is dependent upon the details of the process type, design, and layout; the specific limitations on inspector access; and the restrictions placed upon the design information that can be provided to the IAEA. This analysis identified the necessary conditions for safeguardability of black box processes and facilities.
Date: September 25, 2013
Creator: Diaz-Marcano, Helly; Gitau, Ernest TN; Hockert, John; Miller, Erin & Wylie, Joann
System: The UNT Digital Library
"Multiscale Capabilities for Exploring Transport Phenomena in Batteries": Ab Initio Calculations on Defective LiFePO4 (open access)

"Multiscale Capabilities for Exploring Transport Phenomena in Batteries": Ab Initio Calculations on Defective LiFePO4

None
Date: October 25, 2013
Creator: Kanai, Y; Tang, M & Wood, B C
System: The UNT Digital Library
Modeling Ternary Pumped Storage Units (open access)

Modeling Ternary Pumped Storage Units

None
Date: October 25, 2013
Creator: Feltes, J.; Kazachkov, Y.; Gong, B.; Trouille, B.; Donalek, P.; Koritarov, V. et al.
System: The UNT Digital Library
Pathways, Networks and Systems Medicine Conferences (open access)

Pathways, Networks and Systems Medicine Conferences

The 6th Pathways, Networks and Systems Medicine Conference was held at the Minoa Palace Conference Center, Chania, Crete, Greece (16-21 June 2008). The Organizing Committee was composed of Joe Nadeau (CWRU, Cleveland), Rudi Balling (German Research Centre, Brauschweig), David Galas (Institute for Systems Biology, Seattle), Lee Hood (Institute for Systems Biology, Seattle), Diane Isonaka (Seattle), Fotis Kafatos (Imperial College, London), John Lambris (Univ. Pennsylvania, Philadelphia),Harris Lewin (Univ. of Indiana, Urbana-Champaign), Edison Liu (Genome Institute of Singapore, Singapore), and Shankar Subramaniam (Univ. California, San Diego). A total of 101 individuals from 21 countries participated in the conference: USA (48), Canada (5), France (5), Austria (4), Germany (3), Italy (3), UK (3), Greece (2), New Zealand (2), Singapore (2), Argentina (1), Australia (1), Cuba (1), Denmark (1), Japan (1), Mexico (1), Netherlands (1), Spain (1), Sweden (1), Switzerland (1). With respect to speakers, 29 were established faculty members and 13 were graduate students or postdoctoral fellows. With respect to gender representation, among speakers, 13 were female and 28 were male, and among all participants 43 were female and 58 were male. Program these included the following topics: Cancer Pathways and Networks (Day 1), Metabolic Disease Networks (Day 2), Day 3 ? Organs, …
Date: November 25, 2013
Creator: Nadeau, Joseph H.
System: The UNT Digital Library
SUSY Simplified Models at 14, 33, and 100 TeV Proton Colliders (open access)

SUSY Simplified Models at 14, 33, and 100 TeV Proton Colliders

None
Date: November 25, 2013
Creator: Cohen, Timothy
System: The UNT Digital Library
Optical System Case Studies for Speckle Imaging (open access)

Optical System Case Studies for Speckle Imaging

None
Date: October 25, 2013
Creator: Carrano, C J
System: The UNT Digital Library
ALTERNATIVE METHODS FOR TRITIUM RECOVERY FROM THE LIFELITHIUM BLANKET: FY13 FINAL REPORT (open access)

ALTERNATIVE METHODS FOR TRITIUM RECOVERY FROM THE LIFELITHIUM BLANKET: FY13 FINAL REPORT

None
Date: October 25, 2013
Creator: Bandhauer, T & Adler, J
System: The UNT Digital Library
Enhancing the precision and accuracy within and among AmeriFlux site measurements (open access)

Enhancing the precision and accuracy within and among AmeriFlux site measurements

This is the final report for AmeriFlux QA/QC at Oregon State University. The major objective of this project is to contribute to the AmeriFlux network by continuing to build consistency in AmeriFlux measurements by addressing objectives stated in the AmeriFlux strategic plan and self evaluation, the North American Carbon Program, and the US Carbon Cycle Science Program. The project directly contributes to NACP and CCSP goals to establish an integrated, near-real time network of observations to inform climate change science.
Date: November 25, 2013
Creator: Law, Bev
System: The UNT Digital Library
Review of Existing Hydroelectric Turbine-Governor Simulation Models (open access)

Review of Existing Hydroelectric Turbine-Governor Simulation Models

None
Date: October 25, 2013
Creator: Feltes, J.; Koritarov, V.; Guzowski, L.; Kazachkov, Y.; Lam, B.; Grande-Moran, C. et al.
System: The UNT Digital Library
Modeling Adjustable Speed Pumped Storage Hydro Units Employing Doubly-Fed Induction Machines (open access)

Modeling Adjustable Speed Pumped Storage Hydro Units Employing Doubly-Fed Induction Machines

None
Date: October 25, 2013
Creator: Feltes, J.; Koritarov, V.; Guzowski, L.; Kazachkov, Y.; Gong, B.; Trouille, B. et al.
System: The UNT Digital Library
2013 LIDAR Campaign at Buena Vista Wind Farm: An Examination of Hill Speedup Flows (open access)

2013 LIDAR Campaign at Buena Vista Wind Farm: An Examination of Hill Speedup Flows

None
Date: September 25, 2013
Creator: Wharton, S; Qualley, G; Newman, J & Miller, W
System: The UNT Digital Library
Testing Dynamic Simulation Models for Different Types of Advanced Pumped Storage Hydro Units (open access)

Testing Dynamic Simulation Models for Different Types of Advanced Pumped Storage Hydro Units

None
Date: October 25, 2013
Creator: Feltes, J.; Koritarov, V.; Kazachkov, Y.; Gong, B.; Donalek, P.; Gevorgian, V. (Decision and Information Sciences) et al.
System: The UNT Digital Library
LLNL HEPA Filter Support of Nuclear Facility Safety R&D (FY12) (open access)

LLNL HEPA Filter Support of Nuclear Facility Safety R&D (FY12)

None
Date: October 25, 2013
Creator: Mitchell, M A; Brown, E & Haslam, J
System: The UNT Digital Library
LIFE Reactor Study Fiscal Year 2013 Contract Report (open access)

LIFE Reactor Study Fiscal Year 2013 Contract Report

None
Date: October 25, 2013
Creator: Sacks, R & Moses, G
System: The UNT Digital Library
Planning Document for an NBSR Conversion Safety Analysis Report (open access)

Planning Document for an NBSR Conversion Safety Analysis Report

The NIST Center for Neutron Research (NCNR) is a reactor-laboratory complex providing the National Institute of Standards and Technology (NIST) and the nation with a world-class facility for the performance of neutron-based research. The heart of this facility is the National Bureau of Standards Reactor (NBSR). The NBSR is a heavy water moderated and cooled reactor operating at 20 MW. It is fueled with high-enriched uranium (HEU) fuel elements. A Global Threat Reduction Initiative (GTRI) program is underway to convert the reactor to low-enriched uranium (LEU) fuel. This program includes the qualification of the proposed fuel, uranium and molybdenum alloy foil clad in an aluminum alloy, and the development of the fabrication techniques. This report is a planning document for the conversion Safety Analysis Report (SAR) that would be submitted to, and approved by, the Nuclear Regulatory Commission (NRC) before the reactor could be converted.This report follows the recommended format and content from the NRC codified in NUREG-1537, “Guidelines for Preparing and Reviewing Applications for the Licensing of Non-power Reactors,” Chapter 18, “Highly Enriched to Low-Enriched Uranium Conversions.” The emphasis herein is on the SAR chapters that require significant changes as a result of conversion, primarily Chapter 4, Reactor Description, …
Date: September 25, 2013
Creator: Diamond, D. J.; Baek, J.; Hanson, A. L.; Cheng, L. Y.; Brown, N. & Cuadra, A.
System: The UNT Digital Library
Caldwell Ranch Exploration and Confirmation Project, Northwest Geysers, CA (open access)

Caldwell Ranch Exploration and Confirmation Project, Northwest Geysers, CA

The purpose of the Caldwell Ranch Exploration and Confirmation Project was to drill, test, and confirm the present economic viability of the undeveloped geothermal reservoir in the 870 acre Caldwell Ranch area of the Northwest Geysers that included the CCPA No.1 steam field. All of the drilling, logging, and sampling challenges were met. � Three abandoned wells, Prati 5, Prati 14 and Prati 38 were re-opened and recompleted to nominal depths of 10,000 feet in 2010. Two of the wells required sidetracking. � The flow tests indicated Prati 5 Sidetrack 1 (P-5 St1), Prati 14 (P-14) and Prati 38 Sidetrack 2 (P-38 St2) were collectively capable of initially producing an equivalent of 12 megawatts (MWe) of steam using a conversion rate of 19,000 pounds of steam/hour
Date: April 25, 2013
Creator: Walters, Mark A.
System: The UNT Digital Library
Exascale Co-Design Center for Materials in Extreme Environments (ExMatEx) Annual Report - Year 2 (open access)

Exascale Co-Design Center for Materials in Extreme Environments (ExMatEx) Annual Report - Year 2

None
Date: November 25, 2013
Creator: Germann, T; Richards, D; McPherson, A & Belak, J
System: The UNT Digital Library
Final Report: "Sensitivity Study of LIFE Chamber Dynamics" (open access)

Final Report: "Sensitivity Study of LIFE Chamber Dynamics"

None
Date: October 25, 2013
Creator: Pantano-Rubino, C; Uddin, H & Kramer, R
System: The UNT Digital Library
Initial Assessment of U.S. Refineries for Purposes of Potential Bio-Based Oil Insertions (open access)

Initial Assessment of U.S. Refineries for Purposes of Potential Bio-Based Oil Insertions

This study examines how existing U.S. refining infrastructure matches in geography and processing capability with the needs projected from anticipated biofuels production. Key findings include:  a potential shortfall in both overall hydrotreating capacity and hydrogen production capacity in refineries to manage the conversion of certain bio-derived feedstocks having high oxygen contents;  a regional concentration of anticipated biofuel resources, placing added stress in particular refining regions (e.g. the Gulf Coast);  uncertainties surrounding the impact of bio-derived fuel intermediates on the refiner’s ability to meet product performance and product quantity demands, and the need for better and more comprehensive chemical composition information;  the need for considerably more data and experience on the behavior of projected biofuels feedstocks in refining processes (e.g. impacts on process performance and reliability);  and the need to examine the optimum capital investment locations for additional processing equipment. For example, whether it is better to further refine biofuels at the new production sites, in centralized biofuel "depots", or whether the existing refining facilities should be expanded to better handle a more 'raw' biofuel.
Date: April 25, 2013
Creator: Freeman, Charles J.; Jones, Susanne B.; Padmaperuma, Asanga B.; Santosa, Daniel M.; Valkenburg, Corinne & Shinn, John
System: The UNT Digital Library
Reducing the Cost of Thermal Energy Storage for Parabolic Trough Solar Power Plants (open access)

Reducing the Cost of Thermal Energy Storage for Parabolic Trough Solar Power Plants

Thermal energy storage systems using phase change materials were evaluated for trough systems that use oil, steam, and high temperature salts as heat transfer fluids. A variety of eutectic salts and metal alloys were considered as phase change materials in a cascaded arrangement. Literature values of specific heat, latent heat, density, and other thermophysical properties were used in initial analyses. Testing laboratories were contracted to measure properties for candidate materials for comparison to the literature and for updating the models. A TRNSYS model from Phase 1 was further developed for optimizing the system, including a novel control algorithm. A concept for increasing the bulk thermal conductivity of the phase change system was developed using expanded metal sheets. Outside companies were contracted to design and cost systems using platecoil heat exchangers immersed in the phase change material. Laboratory evaluations of the one-dimensional and three-dimensional behavior of expanded metal sheets in a low conductivity medium were used to optimize the amount of thermal conductivity enhancement. The thermal energy storage systems were compared to baseline conventional systems. The best phase change system found in this project, which was for the high temperature plant, had a projected cost of $25.2 per kWhth, The best …
Date: June 25, 2013
Creator: Gawlik, Keith
System: The UNT Digital Library
New Manufacturing Method for Paper Filler and Fiber Material (open access)

New Manufacturing Method for Paper Filler and Fiber Material

The use of fillers in printing and writing papers has become a prerequisite for competing in a global market to reduce the cost of materials. Use of calcium carbonates (ranging from 18% to 30%) as filler is a common practice in the paper industry but the choices of fillers for each type of papers vary widely according to its use. The market for uncoated digital printing paper is one that continues to introduce exciting growth projections. and it is important to understand the effect that new manufacturing methods of calcium carbonates have on the energy efficiency and paper production. Research conducted under this award showed that the new fiber filler composite material has the potential to increase the paper filler content by up to 5% without losing mechanical properties. Benefits of the technology can be summarized as follows for a 1% filler increase per metric ton of paper produced: (i) production cost savings over $12, (ii) Energy savings of 100,900 btu, (iii) CO{sub 2} emission savings of 33 lbs, and additional savings for wood preparation, pulping, recovery of 203593 btu with a 46lbs of CO{sub 2} emission savings per 1% filler increase. In addition the technology has the potential to …
Date: August 25, 2013
Creator: Doelle, Klaus
System: The UNT Digital Library
Mathematical and Computational Tools for Predictive Simulation of Complex Coupled Systems under Uncertainty (open access)

Mathematical and Computational Tools for Predictive Simulation of Complex Coupled Systems under Uncertainty

Methods and algorithms are developed to enable the accurate analysis of problems that exhibit interacting physical processes with uncertainties. These uncertainties can pertain either to each of the physical processes or to the manner in which they depend on each others. These problems are cast within a polynomial chaos framework and their solution then involves either solving a large system of algebraic equations or a high dimensional numerical quadrature. In both cases, the curse of dimensionality is manifested. Procedures are developed for the efficient evaluation of the resulting linear equations that advantage of the block sparse structure of these equations, resulting in a block recursive Schur complement construction. In addition, embedded quadratures are constructed that permit the evaluation of very high-dimensional integrals using low-dimensional quadratures adapted to particular quantities of interest. The low-dimensional integration is carried out in a transformed measure space in which the quantity of interest is low-dimensional. Finally, a procedure is also developed to discover a low-dimensional manifold, embedded in the initial high-dimensional one, in which scalar quantities of interest exist. This approach permits the functional expression of the reduced space in terms of the original space, thus permitting cross-scale sensitivity analysis.
Date: March 25, 2013
Creator: Ghanem, Roger
System: The UNT Digital Library
Interim salt disposition program macrobatch 6 tank 21H qualification monosodium titanate and cesium mass transfer tests (open access)

Interim salt disposition program macrobatch 6 tank 21H qualification monosodium titanate and cesium mass transfer tests

Savannah River National Laboratory (SRNL) performed experiments on qualification material for use in the Interim Salt Disposition Program (ISDP) Batch 6 processing. This qualification material was a set of six samples from Tank 21H in October 2012. This sample was used as a real waste demonstration of the Actinide Removal Process (ARP) and the Extraction-Scrub-Strip (ESS) tests process. The Tank 21H sample was contacted with a reduced amount (0.2 g/L) of MST and characterized for strontium and actinide removal at 0 and 8 hour time intervals in this salt batch. {sup 237}Np and {sup 243}Am were both observed to be below detection limits in the source material, and so these results are not reported in this report. The plutonium and uranium samples had decontamination factor (DF) values that were on par or slightly better than we expected from Batch 5. The strontium DF values are slightly lower than expected but still in an acceptable range. The Extraction, Scrub, and Strip (ESS) testing demonstrated cesium removal, stripping and scrubbing within the acceptable range. Overall, the testing indicated that cesium removal is comparable to prior batches at MCU.
Date: February 25, 2013
Creator: Washington, A. L. II; Peters, T. B. & Fink, S. D.
System: The UNT Digital Library
241-SY Tank Farm Construction Extent of Condition Review for Tank Integrity (open access)

241-SY Tank Farm Construction Extent of Condition Review for Tank Integrity

This report provides the results of an extent of condition construction history review for tanks 241-SY-101, 241-SY-102, and 241-SY-103. The construction history of the 241-SY tank farm has been reviewed to identify issues similar to those experienced during tank 241-AY-102 construction. Those issues and others impacting integrity are discussed based on information found in available construction records, using tank 241-AY-102 as the comparison benchmark. In the 241-SY tank farm, the third DST farm constructed, refractory quality and stress relief were improved, while similar tank and liner fabrication issues remained.
Date: July 25, 2013
Creator: Barnes, Travis J.; Boomer, Kayle D.; Gunter, Jason R. & Venetz, Theodore J.
System: The UNT Digital Library