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Characterization of a mixed salt of 1-hydroxy-pyridin-2-one Pu(IV)complexes

Description: Most expert analyses of the projected world energy needs show utilization of nuclear energy will be essential for the next few decades, and hence the need to support this technology grows. But as one measure of the supporting science base of this field, as of December 2006, only 25 Pu containing structures were in the Cambridge Structural Database, as compared to 21,807 for Fe. A comparison of the rate of addition to this knowledge base reveals that approximately 500 Fe structures are registere… more
Date: January 9, 2007
Creator: Gorden, Anne E.V.; Xu, Jide; Szigethy, Geza; Oliver, Allen; Shuh,David K. & Raymond, Kenneth N.
Partner: UNT Libraries Government Documents Department
open access

Next Generation Nuclear Plant Phenomena Identification and Ranking Tables (PIRTs) Volume 5: Graphite PIRTs

Description: Here we report the outcome of the application of the Nuclear Regulatory Commission (NRC) Phenomena Identification and Ranking Table (PIRT) process to the issue of nuclear-grade graphite for the moderator and structural components of a next generation nuclear plant (NGNP), considering both routine (normal operation) and postulated accident conditions for the NGNP. The NGNP is assumed to be a modular high-temperature gas-cooled reactor (HTGR), either a gas-turbine modular helium reactor (GTMHR) v… more
Date: March 1, 2008
Creator: Burchell, Timothy D; Bratton, Rob; Marsden, Barry; Srinivasan, Makuteswara; Penfield, Scott; Mitchell, Mark et al.
Partner: UNT Libraries Government Documents Department
open access

FY07 LDRD Final Report A Fracture Mechanics and Tribology Approach to Understanding Subsurface Damage on Fused Silica during Grinding and Polishing

Description: The objective of this work is to develop a solid scientific understanding of the creation and characteristics of surface fractures formed during the grinding and polishing of brittle materials, specifically glass. In this study, we have experimentally characterized the morphology, number density, and depth distribution of various surface cracks as a function of various grinding and polishing processes (blanchard, fixed abrasive grinding, loose abrasive, pitch polishing and pad polishing). Also,… more
Date: February 5, 2008
Creator: Suratwala, T I; Miller, P E; Menapace, J A; Wong, L L; Steele, R A; Feit, M D et al.
Partner: UNT Libraries Government Documents Department

Wafer Replacement Cluster Tool

Description: This presentation on wafer replacement cluster tool discusses: (1) Platform for advanced R and D toward SAI 2015 cost goal--crystal silicon PV at area costs closer to amorphous Si PV, it's 15% efficiency, inexpensive substrate, and moderate temperature processing (<800 C); (2) Why silicon?--industrial and knowledge base, abundant and environmentally benign, market acceptance, and good efficiency; and (3) Why replace wafers?--expensive, high embedded energy content, and uses 50-100 times more… more
Date: April 1, 2008
Creator: Branz, H. M.
Partner: UNT Libraries Government Documents Department
open access

Performance, Efficiency, and Emissions Characterization of Reciprocating Internal Combustion Engines Fueled with Hydrogen/Natural Gas Blends

Description: Hydrogen is an attractive fuel source not only because it is abundant and renewable but also because it produces almost zero regulated emissions. Internal combustion engines fueled by compressed natural gas (CNG) are operated throughout a variety of industries in a number of mobile and stationary applications. While CNG engines offer many advantages over conventional gasoline and diesel combustion engines, CNG engine performance can be substantially improved in the lean operating region. Lean o… more
Date: June 30, 2007
Creator: Chapman, Kirby S. & Patil, Amar
Partner: UNT Libraries Government Documents Department
open access

Nondestructive and Destructive Examination Studies on Removed-from-Service Control Rod Drive Mechanism Penetrations

Description: Studies conducted at the Pacific Northwest National Laboratory (PNNL) in Richland, Washington, focused on assessing the effectiveness of nondestructive examination (NDE) techniques for inspecting control rod drive mechanism (CRDM) nozzles and J-groove weldments. The primary objectives of this work are to provide information to the U.S. Nuclear Regulatory Commission (NRC) on the effectiveness of NDE methods as related to the in-service inspection of CRDM nozzles and J-groove weldments and to enh… more
Date: June 7, 2007
Creator: Cumblidge, Stephen E.; Crawford, Susan L.; Doctor, Steven R.; Seffens, Rob J.; Schuster, George J.; Toloczko, Mychailo B. et al.
Partner: UNT Libraries Government Documents Department
open access

Summary report : universal fuel processor.

Description: The United States produces only about 1/3 of the more than 20 million barrels of petroleum that it consumes daily. Oil imports into the country are roughly equivalent to the amount consumed in the transportation sector. Hence the nation in general, and the transportation sector in particular, is vulnerable to supply disruptions and price shocks. The situation is anticipated to worsen as the competition for limited global supplies increases and oil-rich nations become increasingly willing to man… more
Date: January 1, 2008
Creator: Coker, Eric Nicholas; Rice, Steven F. (Sandia National Laboratories, Livermore, CA); Kemp, Richard Alan; Stewart, Constantine A.; Miller, James Edward; Cornelius, Christopher James et al.
Partner: UNT Libraries Government Documents Department
open access

Compendium of Data for the Hanford Site (Fiscal Years 2004 to 2008) Applicable to Estimation of Recharge Rates

Description: This report is a compendium of recharge data collected in Fiscal Years 2004 through 2008 at various soil and surface covers found and planned in the 200 West and 200 East Areas of the U.S. Department of Energy’s Hanford Site in southeast Washington State. The addition of these new data to previously published recharge data will support improved estimates of recharge with respect to location and soil cover helpful to evaluations and risk assessments of radioactive and chemical wastes at this sit… more
Date: September 24, 2008
Creator: Nichols, William E.; Rockhold, Mark L. & Downs, Janelle L.
Partner: UNT Libraries Government Documents Department
open access

Enhancing Seismic Calibration Research Through Software Automation and Scientific Information Management

Description: The National Nuclear Security Administration (NNSA) Ground-Based Nuclear Explosion Monitoring Research and Engineering (GNEM R&E) Program at LLNL has made significant progress enhancing the process of deriving seismic calibrations and performing scientific integration, analysis, and information management with software automation tools. Several achievements in schema design, data visualization, synthesis, and analysis were completed this year. Our tool efforts address the problematic issues… more
Date: July 6, 2007
Creator: Ruppert, S. D.; Dodge, D. A.; Ganzberger, M. D.; Hauk, T. F. & Matzel, E. M.
Partner: UNT Libraries Government Documents Department
open access

Center for Intelligent Fuel Cell Materials Design

Description: The goal of this work was to develop a composite proton exchange membrane utilizing 1) readily available, low cost materials 2) readily modified and 3) easily processed to meet the chemical, mechanical and electrical requirements of high temperature PEM fuel cells. One of the primary goals was to produce a conducting polymer that met the criteria for strength, binding capability for additives, chemical stability, dimensional stability and good conductivity. In addition compatible, specialty nan… more
Date: August 26, 2008
Creator: Santurri, P.R., (Chemsultants International); Hartmann-Thompson, C. & Keinath, S.E. (Michigan Molecular Inst.)
Partner: UNT Libraries Government Documents Department
open access

Nanoparticle Solar Cell Final Technical Report

Description: The purpose of this work was to demonstrate all-inorganic nanoparticle-based solar cells with photovoltaic performance extending into the near-IR region of the solar spectrum as a pathway towards improving power conversion efficiencies. The field of all-inorganic nanoparticle-based solar cells is very new, with only one literature publication in the prior to our project. Very little is understood regarding how these devices function. Inorganic solar cells with IR performance have previously bee… more
Date: June 17, 2008
Creator: Breeze, Alison, J; Sahoo, Yudhisthira; Reddy, Damoder; Sholin, Veronica & Carter, Sue
Partner: UNT Libraries Government Documents Department
open access

Extraordinary optical transmission through patterned subwavelength apertures.

Description: Light propagating through a subwavelength aperture can be dramatically increased by etching a grating in the metal around the hole. Moreover, light that would typically broadly diverge when passing through an unpatterned subwavelength hole can be directed into a narrow beam by utilizing a specific pattern around the aperture. While the increased transmission and narrowed angular emission appear to defy far-field diffraction theory, they are consistent with a fortuitous plasmon/photon coupling. … more
Date: December 1, 2004
Creator: Kemme, Shanalyn A.; El-Kady, Ihab Fathy; Hadley, G. Ronald; Peters, David William & Lanes, Chris E.
Partner: UNT Libraries Government Documents Department
open access

Geomechanical Performance of Hydrate-Bearing Sediment in Offshore Environments

Description: The objective of this multi-year, multi-institutional research project was to develop the knowledge base and quantitative predictive capability for the description of geomechanical performance of hydrate-bearing sediments (hereafter referred to as HBS) in oceanic environments. The focus was on the determination of the envelope of hydrate stability under conditions typical of those related to the construction and operation of offshore platforms. We have developed a robust numerical simulator of … more
Date: March 31, 2008
Creator: Holditch, Stephen; Patzek, Tad; Rutqvist, Jonny; Moridis, George & Plumb, Richard
Partner: UNT Libraries Government Documents Department
open access

INL Active Interrogation Testing In Support of the GNEP Safeguards Campaign

Description: Active interrogation, a measurement technique which uses a radiation source to probe materials and generate unique signatures useful for characterizing those materials, is a powerful tool for assaying special nuclear material. Work at Idaho National Laboratory (INL) in the area of active interrogation, using neutron and photon sources, has been under way for many years to develop methods for detecting and quantifying nuclear material for national and homeland security research areas. This resea… more
Date: April 1, 2008
Creator: Chichester, David L.
Partner: UNT Libraries Government Documents Department
open access

Damage displacement phenomena in Si junction devices : mapping and interpreting a science and technology knowledge domain.

Description: As technical knowledge grows deeper, broader, and more interconnected, knowledge domains increasingly combine a number of sub-domains. More often than not, each of these sub-domains has its own community of specialists and forums for interaction. Hence, from a generalist's viewpoint, it is sometimes difficult to understand the relationships between the sub-domains within the larger domain; and, from a specialist's viewpoint, it may be difficult for those working in one sub-domain to keep abreas… more
Date: October 1, 2004
Creator: Tsao, Jeffrey Yeenien
Partner: UNT Libraries Government Documents Department
open access

Geophysical Models for Nuclear Explosion Monitoring

Description: Geophysical models are increasingly recognized as an important component of regional calibrations for seismic monitoring. The models can be used to predict geophysical measurements, such as body wave travel times, and can be derived from direct regional studies or even by geophysical analogy. While empirical measurements of these geophysical parameters might be preferred, in aseismic regions or regions without seismic stations, this data might not exist. In these cases, models represent a 'best… more
Date: July 16, 2003
Creator: Pasyanos, M E; Walter, W R & Flanagan, M
Partner: UNT Libraries Government Documents Department
open access

Next Generation Nuclear Plant Phenomena Identification and Ranking Tables (PIRTs) Volume 2: Accident and Thermal Fluids Analysis PIRTs

Description: An accident, thermal fluids, and reactor physics phenomena identification and ranking process was conducted by a panel of experts on the next generation nuclear plant (NGNP) design (consideration given to both pebble-bed and prismatic gas-cooled reactor configurations). Safety-relevant phenomena, importance, and knowledge base were assessed for the following event classes: (1) normal operation (including some reactor physics aspects), (2) general loss of forced circulation (G-LOFC), (3) pressur… more
Date: March 1, 2008
Creator: Ball, Sydney J; Corradini, M.; Fisher, Stephen Eugene; Gauntt, R.; Geffraye, G.; Gehin, Jess C et al.
Partner: UNT Libraries Government Documents Department
open access

Phenomena Identification and Ranking Technique (PIRT) Panel Meeting Summary Report

Description: Phenomena Identification and Ranking Technique (PIRT) is a systematic way of gathering information from experts on a specific subject and ranking the importance of the information. NRC, in collaboration with DOE and the working group, conducted the PIRT exercises to identify safety-relevant phenomena for NGNP, and to assess and rank the importance and knowledge base for each phenomenon. The overall objective was to provide NRC with an expert assessment of the safety-relevant NGNP phenomena, and… more
Date: July 1, 2007
Creator: Holbrook, Mark
Partner: UNT Libraries Government Documents Department
open access

Identification and Characterization of Hydrogeologic Units at the Nevada Test Site Using Geophysical Logs: Examples from the Underground Test Area Project

Description: The diverse and complex geology of the Nevada Test Site region makes for a challenging environment for identifying and characterizing hydrogeologic units penetrated by wells drilled for the U.S. Department of Energy, National Nuclear Security Administration, Underground Test Area (UGTA) Environmental Restoration Sub-Project. Fortunately, UGTA geoscientists have access to large and robust sets of subsurface geologic data, as well as a large historical knowledge base of subsurface geological anal… more
Date: March 25, 2009
Creator: Lance Prothro, Sigmund Drellack, Margaret Townsend
Partner: UNT Libraries Government Documents Department
open access

Aligning ontologies and integrating textual evidence for pathway analysis of microarray data

Description: Expression arrays are introducing a paradigmatic change in biology by shifting experimental approaches from single gene studies to genome-level analysis, monitoring the ex-pression levels of several thousands of genes in parallel. The massive amounts of data obtained from the microarray data needs to be integrated and interpreted to infer biological meaning within the context of information-rich pathways. In this paper, we present a methodology that integrates textual information with annotatio… more
Date: October 8, 2006
Creator: Gopalan, Banu; Posse, Christian; Sanfilippo, Antonio P.; Stenzel-Poore, Mary; Stevens, S.L.; Castano, Jose et al.
Partner: UNT Libraries Government Documents Department
open access

Wind for Schools Affiliate Programs: Wind and Hydropower Technologies Program (Fact Sheet)

Description: The U.S. Department of Energy's (DOE's) Wind for Schools program is designed to raise awareness about the benefits of wind energy while simultaneously developing a wind energy knowledge base in future leaders of our communities, states, and nation. To accommodate the many stakeholders who are interested in the program, a Wind for Schools affiliate program has been implemented. This document describes the affiliate program and how interested schools may participate.
Date: December 1, 2009
Partner: UNT Libraries Government Documents Department
open access

Engineered Nanostructured MEA Technology for Low Temperature Fuel Cells

Description: The objective of this project is to develop a novel catalyst support technology based on unique engineered nanostructures for low temperature fuel cells which: (1) Achieves high catalyst activity and performance; (2) Improves catalyst durability over current technologies; and (3) Reduces catalyst cost. This project is directed at the development of durable catalysts supported by novel support that improves the catalyst utilization and hence reduce the catalyst loading. This project will develop… more
Date: July 16, 2009
Creator: Zhu, Yimin
Partner: UNT Libraries Government Documents Department
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The process for integrating the NNSA knowledge base.

Description: From 2002 through 2006, the Ground Based Nuclear Explosion Monitoring Research & Engineering (GNEMRE) program at Sandia National Laboratories defined and modified a process for merging different types of integrated research products (IRPs) from various researchers into a cohesive, well-organized collection know as the NNSA Knowledge Base, to support operational treaty monitoring. This process includes defining the KB structure, systematically and logically aggregating IRPs into a complete set, … more
Date: March 1, 2009
Creator: Wilkening, Lisa K.; Carr, Dorthe Bame; Young, Christopher John; Hampton, Jeff (Lockheed Martin Mission Services, Houston, TX) & Martinez, Elaine
Partner: UNT Libraries Government Documents Department
open access

Next Generation Nuclear Plant Phenomena Identification and Ranking Tables (PIRTs) Volume 4: High-Temperature Materials PIRTs

Description: The Phenomena Identification and Ranking Table (PIRT) technique was used to identify safety-relevant/safety-significant phenomena and assess the importance and related knowledge base of high-temperature structural materials issues for the Next Generation Nuclear Plant (NGNP), a very high temperature gas-cooled reactor (VHTR). The major aspects of materials degradation phenomena that may give rise to regulatory safety concern for the NGNP were evaluated for major structural components and the ma… more
Date: March 1, 2008
Creator: Corwin, William R; Ballinger, R.; Majumdar, S. & Weaver, K. D.
Partner: UNT Libraries Government Documents Department
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