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25 Can Verification Report for the LLNL Plutonium Packaging System (PuPS)
This document reports the results of the 25 Can Verification Run. The 25 Can Verification Run was performed as outlined in Section 1.d of SRS Acceptance Criteria (Reference 1). The run was performed over the period of February 16 to the 28, 2001. Each of these cans was welded with a dummy Inner Can containing about 5 kg of surrogate material. The cans were then analyzed using radiography and metallography of samples taken at four locations of the weld. The radiographs were examined for porosity. The micrographs of the metallurgical samples were examined for porosity, cracks, and lack of fusion. The results were reviewed by Derrill Rikard (a level 3 inspector at LLNL) and by Ken Durland (a level 3 inspector from WSRC). These reviews did not find anything of concern. Therefore we are submitting these results to SRS for concurrence.
Date:
May 7, 2001
Creator:
Riley, D C & Dodson, K E
Object Type:
Report
System:
The UNT Digital Library
2005 Tour de Sol: The Sustainable Energy and Transportation Festival and Competition
This report gives a summary of the 2005Tour de Sol: The Sustainable Energy and Transportation Festival and Competition. It lists our objectives, what we did, and an analysis of how we met our objectives. An 80-page report with a list of verified print, radio and TV media coverage, and copies of selected news clips and web media coverage is available at the NESEA office for review.
Date:
May 7, 2005
Creator:
Hazard, Nancy
Object Type:
Report
System:
The UNT Digital Library
78th Texas Legislature, Fourth Called Session, House Concurrent Resolution 12
Concurrent resolution introduced by the Texas House of Representatives and Senate relating to granting permission to adjourn from April 27 to May 3, 2004.
Date:
May 7, 2004
Creator:
Texas. Legislature. House of Representatives.
Object Type:
Legislative Document
System:
The Portal to Texas History
80th Texas Legislature, Regular Session, Senate Concurrent Resolution 52
Concurrent resolution introduced by the Texas Senate and House of Representatives granting the legislature permission to adjourn for more than three days during the period beginning on Wednesday, April 4, 2007, and ending on Tuesday, April 10, 2007.
Date:
May 7, 2007
Creator:
Texas. Legislature. Senate.
Object Type:
Legislative Document
System:
The Portal to Texas History
An Ab Initio Approach Towards Engineering Fischer-Tropsch Surface Chemistry
One of the greatest societal challenges over the next decade is the production of cheap, renewable energy for the 10 billion people that inhabit the earth. This will require the development of various different energy sources potentially including fuels derived from methane, coal, and biomass and alternatives sources such as solar, wind and nuclear energy. One approach will be to synthesize gasoline and other fuels from simpler hydrocarbons such as CO derived from methane or other U.S. based sources such as coal. Syngas (CO and H{sub 2}) can be readily converted into higher molecular weight hydrocarbons through Fischer-Tropsch synthesis. Fischer-Tropsch synthesis involves the initiation or activation of CO and H{sub 2} bonds, the subsequent propagation steps including hydrogenation and carbon-carbon coupling, followed by chain termination reactions. Commercially viable catalysts include supported Co and Co-alloys. Over the first two years of this project we have used ab initio methods to determine the adsorption energies for all reactants, intermediates, and products along with the overall reaction energies and their corresponding activation barriers over the Co(0001) surface. Over the third year of the project we developed and advanced an ab initio-based kinetic Monte Carlo simulation code to simulate Fischer Tropsch synthesis. This report …
Date:
May 7, 2006
Creator:
Neurock, Matthew & Walthall, David A.
Object Type:
Report
System:
The UNT Digital Library
ACRF Instrumentation Status and Information April 2009
The purpose of this report is to provide a concise but comprehensive overview of Atmospheric Radiation Measurement Climate Research Facility instrumentation status. The report is divided into the following five sections: (1) new instrumentation in the process of being acquired and deployed, (2) field campaigns, (3) existing instrumentation and progress on improvements or upgrades, (4) proposed future instrumentation, and (5) Small Business Innovation Research instrument development.
Date:
May 7, 2009
Creator:
Voyles, JW
Object Type:
Report
System:
The UNT Digital Library
Added Value of Reliability to a Microgrid: Simulations of Three California Buildings
The Distributed Energy Resources Customer Adoption Model is used to estimate the value an Oakland nursing home, a Riverside high school, and a Sunnyvale data center would need to put on higher electricity service reliability for them to adopt a Consortium for Electric Reliability Technology Solutions Microgrid (CM) based on economics alone. A fraction of each building's load is deemed critical based on its mission, and the added cost of CM capability to meet it added to on-site generation options. The three sites are analyzed with various resources available as microgrid components. Results show that the value placed on higher reliability often does not have to be significant for CM to appear attractive, about 25 $/kWcdota and up, but the carbon footprint consequences are mixed because storage is often used to shift cheaper off-peak electricity to use during afternoon hours in competition with the solar sources.
Date:
May 7, 2009
Creator:
Marnay, Chris; Lai, Judy; Stadler, Michael & Siddiqui, Afzal
Object Type:
Article
System:
The UNT Digital Library
Additional Standard Tax Deduction for the Blind: A Description and Assessment
This report covers the history, reasoning, and current policy that surrounds tax deductions for the blind. Moreover, the report highlights the current policy (as of May 7th 2008) as one that recognizes the higher cost of living for a blind person because many blind taxpayers have low incomes. However, the report points out that because of this many of them have access to an additional deduction for being in a lower income bracket.
Date:
May 7, 2008
Creator:
Jackson, Pamela J. & Teefy, Jennifer
Object Type:
Report
System:
The UNT Digital Library
Additional Standard Tax Deduction for the Elderly: A Description and Assessment
This report briefly summarizes the history, reasoning, and current tax deductions (as of May 7th 2008) for the elderly. The report suggests that the current tax deduction for both the elderly and the blind will result in the loss of 9 billion in tax revenue. Moreover, the report suggests that corrections could be made with alternative solutions.
Date:
May 7, 2008
Creator:
Jackson, Pamela J. & Teefy, Jennifer
Object Type:
Report
System:
The UNT Digital Library
Advanced Algorithms and Automation Tools for Discrete Ordinates Methods in Parallel Environments
This final report discusses major accomplishments of a 3-year project under the DOE's NEER Program. The project has developed innovative and automated algorithms, codes, and tools for solving the discrete ordinates particle transport method efficiently in parallel environments. Using a number of benchmark and real-life problems, the performance and accuracy of the new algorithms have been measured and analyzed.
Date:
May 7, 2003
Creator:
Haghighat, Alireza
Object Type:
Report
System:
The UNT Digital Library
Advanced Gate Drive for the SNS High Voltage Converter Modulator
SLAC National Accelerator Laboratory is developing a next generation H-bridge switch plate [1], a critical component of the SNS High Voltage Converter Modulator [2]. As part of that effort, a new IGBT gate driver has been developed. The drivers are an integral part of the switch plate, which are essential to ensuring fault-tolerant, high-performance operation of the modulator. The redesigned driver improves upon the existing gate drive in several ways. The new gate driver has improved fault detection and suppression capabilities; suppression of shoot-through and over-voltage conditions, monitoring of dI/dt and Vce(sat) for fast over-current detection and suppression, and redundant power isolation are some of the added features. In addition, triggering insertion delay is reduced by a factor of four compared to the existing driver. This paper details the design and performance of the new IGBT gate driver. A simplified schematic and description of the construction are included. The operation of the fast over-current detection circuits, active IGBT over-voltage protection circuit, shoot-through prevention circuitry, and control power isolation breakdown detection circuit are discussed.
Date:
May 7, 2009
Creator:
Nguyen, M. N.; Burkhart, C.; Kemp, M. A. & Anderson, D. E.
Object Type:
Article
System:
The UNT Digital Library
Aging and Fracture of Human Cortical Bone and Tooth Dentin
Mineralized tissues, such as bone and tooth dentin, serve as structural materials in the human body and, as such, have evolved to resist fracture. In assessing their quantitative fracture resistance or toughness, it is important to distinguish between intrinsic toughening mechanisms which function ahead of the crack tip, such as plasticity in metals, and extrinsic mechanisms which function primarily behind the tip, such as crack bridging in ceramics. Bone and dentin derive their resistance to fracture principally from extrinsic toughening mechanisms which have their origins in the hierarchical microstructure of these mineralized tissues. Experimentally, quantification of these toughening mechanisms requires a crack-growth resistance approach, which can be achieved by measuring the crack-driving force, e.g., the stress intensity, as a function of crack extension ("R-curve approach"). Here this methodology is used to study of the effect of aging on the fracture properties of human cortical bone and human dentin in order to discern the microstructural origins of toughness in these materials.
Date:
May 7, 2008
Creator:
Ager, Joel; Koester, Kurt J.; Ager, Joel W., III & Ritchie, Robert O.
Object Type:
Article
System:
The UNT Digital Library
AGING PERFORMANCE OF VITON GLT O-RINGS IN RADIOACTIVE MATERIAL PACKAGES
Radioactive material packages used for transportation of plutonium-bearing materials often contain multiple O-ring seals for containment. Packages such as the Model 9975 are also being used for interim storage of Pu-bearing materials at the Savannah River Site (SRS). One of the seal materials used in such packages is Viton{reg_sign} GLT fluoroelastomer. The aging behavior of containment vessel O-rings based on Viton{reg_sign} GLT at long-term containment term storage conditions is being characterized to assess its performance in such applications. This paper summarizes the program and test results to date.
Date:
May 7, 2007
Creator:
Skidmore, E; Kerry Dunn, K; Elizabeth Hoffman, E; Elise Fox, E & Kathryn Counts, K
Object Type:
Article
System:
The UNT Digital Library
The Albany News (Albany, Tex.), Vol. 133, No. 50, Ed. 1 Thursday, May 7, 2009
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
May 7, 2009
Creator:
Lucas, Melinda L.
Object Type:
Newspaper
System:
The Portal to Texas History
Alert Systems for Missing Adults in Eleven States: Background and Issues for Congress
This report discusses the emerging development of nationwide alert systems to recover missing adults, such as those with mental impairment (such as Alzheimer's disease), developmental disabilities, or suicidal tendencies. This report provides an overview of such alert systems in 11 states: Colorado, Delaware, Florida, Georgia, Kentucky, North Carolina, Ohio, Oklahoma, Rhode Island, Texas, and Virginia. This report also provides a discussion of issues for Congress to consider with respect to the federal role, if any, in developing state alert programs for missing adults.
Date:
May 7, 2009
Creator:
Fernandes, Adrienne L. & Colello, Kirsten J.
Object Type:
Report
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 101, No. 46, Ed. 1 Sunday, May 7, 2000
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
May 7, 2000
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 102, No. 46, Ed. 1 Monday, May 7, 2001
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
May 7, 2001
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 104, No. 44, Ed. 1 Tuesday, May 7, 2002
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
May 7, 2002
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 106, No. 32, Ed. 1 Friday, May 7, 2004
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
May 7, 2004
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 107, No. 337, Ed. 1 Sunday, May 7, 2006
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
May 7, 2006
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 108, No. 344, Ed. 1 Monday, May 7, 2007
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
May 7, 2007
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 109, No. 291, Ed. 1 Wednesday, May 7, 2008
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
May 7, 2008
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 111, No. 216, Ed. 1 Thursday, May 7, 2009
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
May 7, 2009
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Alvin Advertiser (Alvin, Tex.), Ed. 1 Wednesday, May 7, 2003
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
May 7, 2003
Creator:
Schwind, Jim & Holton, Kathleen
Object Type:
Newspaper
System:
The Portal to Texas History