Serial/Series Title
Fiscal Year 2007
4
Winter Fuels Report
4
Fiscal Year 2005
2
Proceedings of RIKEN BNL Research Center Workshop
2
Carbon Sequestration on Surface Mine Lands Quarterly Report
1
Development of Novel Electrocatalysts for Proton Exchange Membrane Fuel Cells Annual Report
1
Elastic-Wavefield Seismic Stratigraphy: A New Seismic Imaging Technology Progress Report
1
Fiscal Year 1976
1
Fiscal Year 1994
1
Fiscal Year 1998
1
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FEL Oscillator for EUV Lithography
Report on a study to develop radiation sources for extreme ultraviolet lithography (EUVL) by using a free-electron laser (FEL) with a short-period undulator and a relatively small beam energy.
Date:
March 6, 2014
Creator:
Stupakov, G. & Zolotorev, M. S.
Object Type:
Article
System:
The UNT Digital Library
Feasibility Study For Use Of Commercial Cask Vendor Dry Transfer Systems To Unload Used Fuel Assemblies In L-Area
The purpose of this study is to determine whether a commercial dry transfer system (DTS) could be used for loading or unloading used nuclear fuel (UNF) in L-Basin and to determine if a DTS pool adapter could be made for L-Basin Transfer Pit #2 that could accommodate a variety of DTS casks and fuel baskets or canisters up to 24” diameter.[1, 2] This study outlines the technical feasibility of accommodating different vendor dry transfer systems in the L-Basin Transfer Bay with a general work scope. It identifies equipment needing development, facility modifications, and describes the needed analyses and calculations. After reviewing the L-Basin Transfer Bay area layout and information on the only DTS system currently in use for the Nuclear Assurance Corporation Legal Weight Truck cask (NAC LWT), the authors conclude that use of a dry transfer cask is feasible. AREVA was contacted and acknowledged that they currently do not have a design for a dry transfer cask for their new Transnuclear Long Cask (TN-LC) cask. Nonetheless, this study accounted for a potential future DTS from AREVA to handle fuel baskets up to 18” in diameter. Due to the layout of the Transfer Bay, it was determined that a DTS …
Date:
February 6, 2014
Creator:
Krementz, Dan; Rose, David & Dunsmuir, Mike
Object Type:
Report
System:
The UNT Digital Library
PRP Review of shots beyond FY14 Q1/Q2 Report
None
Date:
February 6, 2014
Creator:
Rosen, M D
Object Type:
Report
System:
The UNT Digital Library
An Easy Method To Accelerate An Iterative Algebraic Equation Solver
None
Date:
January 6, 2014
Creator:
Yao, J
Object Type:
Report
System:
The UNT Digital Library
Effects of Powder Morphology and Particle Size on CT Number Estimates
None
Date:
January 6, 2014
Creator:
Kallman, J S; DePiero, S; Azevedo, S & Martz, H E
Object Type:
Article
System:
The UNT Digital Library
Project Final Report: Building a Community Infrastructure for Scalable On-Line Performance Analysis Tools around Open|SpeedShop
In this project we created a community tool infrastructure for program development tools targeting Petascale class machines and beyond. This includes tools for performance analysis, debugging, and correctness tools, as well as tuning and optimization frameworks. The developed infrastructure provides a comprehensive and extensible set of individual tool building components. We started with the basic elements necessary across all tools in such an infrastructure followed by a set of generic core modules that allow a comprehensive performance analysis at scale. Further, we developed a methodology and workflow that allows others to add or replace modules, to integrate parts into their own tools, or to customize existing solutions. In order to form the core modules, we built on the existing Open|SpeedShop infrastructure and decomposed it into individual modules that match the necessary tool components. At the same time, we addressed the challenges found in performance tools for petascale systems in each module. When assembled, this instantiation of community tool infrastructure provides an enhanced version of Open|SpeedShop, which, while completely different in its architecture, provides scalable performance analysis for petascale applications through a familiar interface. This project also built upon and enhances capabilities and reusability of project partner components as specified in …
Date:
January 6, 2014
Creator:
Galarowicz, James
Object Type:
Report
System:
The UNT Digital Library
Scaling Law of Coherent Synchrotron Radiation in a Rectangular Chamber
None
Date:
January 6, 2014
Creator:
Cai, Yunhai
Object Type:
Article
System:
The UNT Digital Library
Single Stage Contactor Testing Of The Next Generation Solvent Blend
The Modular Caustic Side Solvent Extraction (CSSX) Unit (MCU) facility at the Savannah River Site (SRS) is actively pursuing the transition from the current BOBCalixC6 based solvent to the Next Generation Solvent (NGS)-MCU solvent to increase the cesium decontamination factor. To support this integration of NGS into the MCU facility the Savannah River National Laboratory (SRNL) performed testing of a blend of the NGS (MaxCalix based solvent) with the current solvent (BOBCalixC6 based solvent) for the removal of cesium (Cs) from the liquid salt waste stream. This testing utilized a blend of BOBCalixC6 based solvent and the NGS with the new extractant, MaxCalix, as well as a new suppressor, tris(3,7dimethyloctyl) guanidine. Single stage tests were conducted using the full size V-05 and V-10 liquid-to-liquid centrifugal contactors installed at SRNL. These tests were designed to determine the mass transfer and hydraulic characteristics with the NGS solvent blended with the projected heel of the BOBCalixC6 based solvent that will exist in MCU at time of transition. The test program evaluated the amount of organic carryover and the droplet size of the organic carryover phases using several analytical methods. The results indicate that hydraulically, the NGS solvent performed hydraulically similar to the current …
Date:
January 6, 2014
Creator:
Herman, D. T.; Peters, T. B.; Duignan, M. R.; Williams, M. R.; Poirier, M. R.; Brass, E. A. et al.
Object Type:
Article
System:
The UNT Digital Library
Threefold Complementary Approach to Holographic QCD
None
Date:
January 6, 2014
Creator:
Brodsky, Stanley J.; de Teramond, Guy F. & Dosch, Hans Gunter
Object Type:
Article
System:
The UNT Digital Library
Tunable Coupling of Two-Dimensional Superconductors in Bilayer SrTiO3 Heterostructures
None
Date:
January 6, 2014
Creator:
Inoue, Hissashi; Kim, Minu; Bell, Christopher; Hikita, Yasuyuki; Raghu, Srinivas & Hwang, Harold Y.
Object Type:
Article
System:
The UNT Digital Library
Abrasion Testing of Critical Components of Hydrokinetic Devices
The objective of the Abrasion Testing of Critical Components of Hydrokinetic Devices (Project) was to test critical components of hydrokinetic devices in waters with high levels of suspended sediment – information that is widely applicable to the hydrokinetic industry. Tidal and river sites in Alaska typically have high suspended sediment concentrations. High suspended sediment also occurs in major rivers and estuaries throughout the world and throughout high latitude locations where glacial inputs introduce silt into water bodies. In assessing the vulnerability of technology components to sediment induced abrasion, one of the greatest concerns is the impact that the sediment may have on device components such as bearings and seals, failures of which could lead to both efficiency loss and catastrophic system failures.
Date:
December 6, 2013
Creator:
Worthington, Monty; Ali, Muhammad & Ravens, Tom
Object Type:
Report
System:
The UNT Digital Library
Final Technical Report - Investigation into the Relationship between Heterogeneity and Heavy-Tailed Solute Transport
The objective of this project was to characterize the influence that naturally complex geologic media has on anomalous dispersion and to determine if the nature of dispersion can be estimated from the underlying heterogeneous media. The UNM portion of this project was to provide detailed representations of aquifer heterogeneity through producing highly-resolved models of outcrop analogs to aquifer materials. This project combined outcrop-scale heterogeneity characterization (conducted at the University of New Mexico), laboratory experiments (conducted at Sandia National Laboratory), and numerical simulations (conducted at Sandia National Laboratory and Colorado School of Mines). The study was designed to test whether established dispersion theory accurately predicts the behavior of solute transport through heterogeneous media and to investigate the relationship between heterogeneity and the parameters that populate these models. The dispersion theory tested by this work was based upon the fractional advection-dispersion equation (fADE) model. Unlike most dispersion studies that develop a solute transport model by fitting the solute transport breakthrough curve, this project explored the nature of the heterogeneous media to better understand the connection between the model parameters and the aquifer heterogeneity. We also evaluated methods for simulating the heterogeneity to see whether these approaches (e.g., geostatistical) could reasonably replicate realistic …
Date:
December 6, 2013
Creator:
Weissmann, Gary S
Object Type:
Report
System:
The UNT Digital Library
Charm Decays and Spectroscopy at BABAR
None
Date:
November 6, 2013
Creator:
Godang, Romulus
Object Type:
Article
System:
The UNT Digital Library
Dichromatic Dark Matter
None
Date:
November 6, 2013
Creator:
Bai, Yang; Su, Meng & Zhao, Yue
Object Type:
Article
System:
The UNT Digital Library
Discovery of the First Leaking Double-Shell Tank - Hanford Tank 241-AY-102-14222
A routine video inspection of the annulus space between the primary tank and secondary liner of double-shell tank 241-AY-102 was performed in August 2012. During the inspection, unexpected material was discovered. A subsequent video inspection revealed additional unexpected material on the opposite side of the tank, none of which had been observed during inspections performed in December 2006 and January 2007. A formal leak assessment team was established to review the tank's construction and operating histories, and preparations for sampling and analysis began to determine the material's origin. A new sampling device was required to collect material from locations that were inaccessible to the available sampler. Following its design and fabrication, a mock-up test was performed for the new sampling tool to ensure its functionality and capability of performing the required tasks. Within three months of the discovery of the unexpected material, sampling tools were deployed, material was collected, and analyses were performed. Results indicated that some of the unknown material was indicative of soil, whereas the remainder was consistent with tank waste. This, along with the analyses performed by the leak assessment team on the tank's construction history, lead to the conclusion that the primary tank was leaking into …
Date:
November 6, 2013
Creator:
Harrington, Stephanie J. & Sams, Terry L.
Object Type:
Article
System:
The UNT Digital Library
LDRD Annual Report 2013
None
Date:
November 6, 2013
Creator:
Chen, Y.
Object Type:
Report
System:
The UNT Digital Library
Safety of Hydrogen Systems Installed in Outdoor Enclosures
The Hydrogen Safety Panel brings a broad cross-section of expertise from the industrial, government, and academic sectors to help advise the U.S. Department of Energy’s (DOE) Fuel Cell Technologies Office through its work in hydrogen safety, codes, and standards. The Panel’s initiatives in reviewing safety plans, conducting safety evaluations, identifying safety-related technical data gaps, and supporting safety knowledge tools and databases cover the gamut from research and development to demonstration and deployment. The Panel’s recent work has focused on the safe deployment of hydrogen and fuel cell systems in support of DOE efforts to accelerate fuel cell commercialization in early market applications: vehicle refueling, material handling equipment, backup power for warehouses and telecommunication sites, and portable power devices. This paper resulted from observations and considerations stemming from the Panel’s work on early market applications. This paper focuses on hydrogen system components that are installed in outdoor enclosures. These enclosures might alternatively be called “cabinets,” but for simplicity, they are all referred to as “enclosures” in this paper. These enclosures can provide a space where a flammable mixture of hydrogen and air might accumulate, creating the potential for a fire or explosion should an ignition occur. If the enclosure is large …
Date:
November 6, 2013
Creator:
Barilo, Nick F.
Object Type:
Report
System:
The UNT Digital Library
The search for strongly decaying exotic matter
N/A
Date:
November 6, 2013
Creator:
Longacre, R. S.
Object Type:
Report
System:
The UNT Digital Library
Which Network Similarity Measure Should You Choose: An Empirical Study
None
Date:
November 6, 2013
Creator:
Soundarajan, S; Eliassi-Rad, T & Gallagher, B
Object Type:
Article
System:
The UNT Digital Library
Accelerator control data visualization with Google Map
N/A
Date:
October 6, 2013
Creator:
W., Fu & Nemesure, S.
Object Type:
Article
System:
The UNT Digital Library
A Monte Carlo Simulation Approach to the Reliability Modeling of the Beam Permit System of the Relativistic Heavy Ion Collider (RHIC) at BNL
N/A
Date:
October 6, 2013
Creator:
Chitnis, P.; Robertazzi, T. G. & Brown, K. A.
Object Type:
Article
System:
The UNT Digital Library
Quantitative fault tree analysis of the Beam Permit System elements of Relativistic Heavy Ion Collider (RHIC) at BNL
N/A
Date:
October 6, 2013
Creator:
Chitnis, P.; Robertazzi, T. G.; Brown, K. A. & Theisen, C.
Object Type:
Article
System:
The UNT Digital Library
Collaborative Research: Neutrinos & Nucleosynthesis in Hot Dense Matter
It is now firmly established that neutrinos, which are copiously produced in the hot and dense core of the supernova, play a role in the supernova explosion mechanism and in the synthesis of heavy elements through a phenomena known as r-process nucleosynthesis. They are also detectable in terrestrial neutrino experiments, and serve as a probe of the extreme environment and complex dynamics encountered in the supernova. The major goal of the UW research activity relevant to this project was to calculate the neutrino interaction rates in hot and dense matter of relevance to core collapse supernova. These serve as key input physics in large scale computer simulations of the supernova dynamics and nucleosynthesis being pursued at national laboratories here in the United States and by other groups in Europe and Japan. Our calculations show that neutrino production and scattering rate are altered by the nuclear interactions and that these modifications have important implications for nucleosynthesis and terrestrial neutrino detection. The calculation of neutrino rates in dense matter are difficult because nucleons in the dense matter are strongly coupled. A neutrino interacts with several nucleons and the quantum interference between scattering off different nucleons depends on the nature of correlations between …
Date:
September 6, 2013
Creator:
Reddy, Sanjay
Object Type:
Report
System:
The UNT Digital Library
THE EFFECTS OF HYDROGEN, TRITIUM, AND HEAT TREATMENT ON THE DEFORMATION AND FRACTURE TOUGHNESS PROPERTIES OF STAINLESS STEEL
The deformation and fracture toughness properties of forged stainless steels pre-charged with tritium were compared to the deformation and fracture toughness properties of the same steels heat treated at 773 K or 873 K and precharged with hydrogen. Forged stainless steels pre-charged with tritium exhibit an aging effect: Fracture toughness values decrease with aging time after precharging because of the increase in concentration of helium from tritium decay. This study shows that forged stainless steels given a prior heat treatment and then pre-charged with hydrogen also exhibit an aging effect: Fracture toughness values decrease with increasing time at temperature. A microstructural analysis showed that the fracture toughness reduction in the heat-treated steels was due to patches of recrystallized grains that form within the forged matrix during the heat treatment. The combination of hydrogen and the patches of recrystallized grains resulted in more deformation twinning. Heavy deformation twinning on multiple slip planes was typical for the hydrogen-charged samples; whereas, in the non-charged samples, less twinning was observed and was generally limited to one slip plane. Similar effects occur in tritium pre-charged steels, but the deformation twinning is brought on by the hardening associated with decay helium bubbles in the microstructure.
Date:
September 6, 2013
Creator:
Morgan, M.; Tosten, M. & Chapman, G.
Object Type:
Article
System:
The UNT Digital Library