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940
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853
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321
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297
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49
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4,113 Matching Results
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Review and Analysis of Development of "Safety by Design" Requirements
This report, the deliverable for Task 4 of the NA-243 Safeguards by Design Work Plan for Fiscal Year 2009, develops the lessons to be learned for the institutionalization of Safeguards By Design (SBD) from the Department of Energy (DOE) experience developing and implementing DOE-STD-1189, Integration of Safety into the Design Process. This experience was selected for study because of the similarity of the challenges of integrating safety and safeguards into the design process. Development of DOE-STD-1189 began in January 2006 and the standard was issued for implementation in March 2008. The process was much more time consuming than originally anticipated and might not have come to fruition had senior DOE management been less committed to its success. Potentially valuable lessons can be learned from both the content and presentation of the integration approach in DOE-STD-1189 and from the DOE experience in developing and implementing DOE-STD-1189. These lessons are important because the instutionalization of SBD does not yet appear to have the level of senior management commitment afforded development and implementation of DOE-STD-1189.
Date:
October 20, 2009
Creator:
Vance, Scott A. & Hockert, John
Object Type:
Report
System:
The UNT Digital Library
A shallow subsurface controlled release facility in Bozeman, Montana, USA, for testing near surface CO2 detection techniques and transport models
A controlled field pilot has been developed in Bozeman, Montana, USA, to study near surface CO2 transport and detection technologies. A slotted horizontal well divided into six zones was installed in the shallow subsurface. The scale and CO2 release rates were chosen to be relevant to developing monitoring strategies for geological carbon storage. The field site was characterized before injection, and CO2 transport and concentrations in saturated soil and the vadose zone were modeled. Controlled releases of CO2 from the horizontal well were performed in the summers of 2007 and 2008, and collaborators from six national labs, three universities, and the U.S. Geological Survey investigated movement of CO2 through the soil, water, plants, and air with a wide range of near surface detection techniques. An overview of these results will be presented.
Date:
October 20, 2009
Creator:
Spangler, L.H.; Dobeck, L.M.; Nehrir, A.; Humphries, S.; Barr, J.; Keith, C. et al.
Object Type:
Article
System:
The UNT Digital Library
Single Molecule Spectroscopy of Electron Transfer
The objectives of this research are threefold: (1) to develop methods for the study electron transfer processes at the single molecule level, (2) to develop a series of modifiable and structurally well defined molecular and nanoparticle systems suitable for detailed single molecule/particle and bulk spectroscopic investigation, (3) to relate experiment to theory in order to elucidate the dependence of electron transfer processes on molecular and electronic structure, coupling and reorganization energies. We have begun the systematic development of single molecule spectroscopy (SMS) of electron transfer and summaries of recent studies are shown. There is a tremendous need for experiments designed to probe the discrete electronic and molecular dynamic fluctuations of single molecules near electrodes and at nanoparticle surfaces. Single molecule spectroscopy (SMS) has emerged as a powerful method to measure properties of individual molecules which would normally be obscured in ensemble-averaged measurement. Fluctuations in the fluorescence time trajectories contain detailed molecular level statistical and dynamical information of the system. The full distribution of a molecular property is revealed in the stochastic fluctuations, giving information about the range of possible behaviors that lead to the ensemble average. In the case of electron transfer, this level of understanding is particularly important to …
Date:
October 20, 2009
Creator:
Holman, Michael; Zang, Ling; Liu, Ruchuan & Adams, David M.
Object Type:
Report
System:
The UNT Digital Library
Social Security: Cost-of-Living Adjustments
None
Date:
October 20, 2009
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
A STUDY ON LEGIONELLA PNEUMOPHILA, WATER CHEMISTRY, AND ATMOSPHERIC CONDITIONS IN COOLING TOWERS AT THE SAVANNAH RIVER SITE
Legionnaires disease is a pneumonia caused by the inhalation of the bacterium Legionella pneumophila. The majority of illnesses have been associated with cooling towers since these devices can harbor and disseminate the bacterium in the aerosolized mist generated by these systems. Historically, Savannah River Site (SRS) cooling towers have had occurrences of elevated levels of Legionella in all seasons of the year and in patterns that are difficult to predict. Since elevated Legionella in cooling tower water are a potential health concern a question has been raised as to the best control methodology. In this work we analyze available chemical, biological, and atmospheric data to determine the best method or key parameter for control. The SRS 4Q Industrial Hygiene Manual, 4Q-1203, 1 - G Cooling Tower Operation and the SRNL Legionella Sampling Program, states that 'Participation in the SRNL Legionella Sampling Program is MANDATORY for all operating cooling towers'. The resulting reports include L. pneumophila concentration information in cells/L. L. pneumophila concentrations >10{sup 7} cells/L are considered elevated and unsafe so action must be taken to reduce these densities. These remedial actions typically include increase biocide addition or 'shocking'. Sometimes additional actions are required if the problem persists including increase …
Date:
October 20, 2009
Creator:
Smith, C. & Brigmon, R.
Object Type:
Article
System:
The UNT Digital Library
Texas Attorney General Opinion: GA-0742
Document issued by the Office of the Attorney General of Texas in Austin, Texas, providing an interpretation of Texas law. It provides the opinion of the Texas Attorney General, Greg Abbott, regarding a legal question submitted for clarification; Whether the Texas Department of Aging and Disability Services may authorize assissted living facilities to provide nursing services to the termiallly ill and other residents (RQ-0794-GA)
Date:
October 20, 2009
Creator:
Texas. Attorney-General's Office.
Object Type:
Text
System:
The Portal to Texas History
Transport of Parallel Momentum by Toroidal Ion Temperature Gradient Instability near Marginality
The turbulent angular momentum flux carried by ions resonant with toroidal ion temperature gradient(ITG) instability is calculated via quasilinear calculation using the phase-space conserving gyrokinetic equation in the laboratory frame. The results near ITG marginality indicate that the inward turbulent equipartition (TEP) momentum pinch [Hahm T.S. et al 2007 Phys. Plasmas 14 072302] remains as the most robust part of pinch. In addition, ion temperature gradient driven momentum flux is inward for typical parameters, while density gradient driven momentum flux is outward as in the previous kinetic result in slab geometry [Diamond P.H. et al 2008 Phys. Plasmas 15 012303].
Date:
October 20, 2009
Creator:
Yoon, E. S. & Hahm, T. S.
Object Type:
Report
System:
The UNT Digital Library
U.S. Department of Agriculture: Charges to Agencies and Offices for Centrally Provided (Greenbook) Programs for Fiscal Years 1999 through 2009 (GAO-10-83SP), an E-supplement to GAO-10-82
Other written product issued by the Government Accountability Office with an abstract that begins "This is a supplement to GAO-10-82. The U.S. Department of Agriculture (USDA) comprises 15 agencies in several broad mission areas responsible for, among other things, assisting farmers and rural communities, overseeing the safety of meat and poultry, giving low-income families access to nutritious food, and protecting the nation's forests. USDA's 12 staff offices support these mission activities. In 1965 Congress gave USDA transfer of funds authority that allows it to charge the appropriations accounts of its agencies and staff offices in order to provide certain programs centrally that benefit those agencies and offices. USDA has used this authority to support several e-government, educational, and presidential initiatives, and the USDA visitors' information center; and to fund programs that provide activities and services that USDA's agencies and staff offices would otherwise have to obtain individually, such as sign language interpreter services and a drug testing program. The Senate report accompanying USDA's fiscal year 2008 appropriations, as reported out by the Senate Appropriations Committee, expressed concern that these charges--referred to as "Greenbook" charges--have grown excessively over the last few years. Noting that the disclosure of these charges to Congress …
Date:
October 20, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
U.S. Department of Agriculture: Internal Control Would Improve Accountability for Certain Centrally Provided (Greenbook) Programs
A letter report issued by the Government Accountability Office with an abstract that begins "The Senate report accompanying the U.S. Department of Agriculture's (USDA) fiscal year 2008 appropriations expressed concern that USDA's Greenbook charges--the transfer of funds authority USDA used to charge the appropriations accounts of its agencies and staff offices for programs to centrally provide certain services--had grown excessively. USDA's Office of the Chief Financial Officer (OCFO) oversees Greenbook charges. The report directed GAO to review these charges and USDA to report on them. This report identifies the agencies and offices assessed Greenbook charges, the amounts of the charges, and the programs supported by Greenbook charges for fiscal years 1999 through 2009. It also (1) assesses how USDA selected programs and monitored Greenbook charges and (2) describes the benefits of the programs, as reported by USDA. GAO reviewed and assessed USDA budget and program documents and discussed processes with officials."
Date:
October 20, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Utah Heavy Oil Program
The Utah Heavy Oil Program (UHOP) was established in June 2006 to provide multidisciplinary research support to federal and state constituents for addressing the wide-ranging issues surrounding the creation of an industry for unconventional oil production in the United States. Additionally, UHOP was to serve as an on-going source of unbiased information to the nation surrounding technical, economic, legal and environmental aspects of developing heavy oil, oil sands, and oil shale resources. UHOP fulGilled its role by completing three tasks. First, in response to the Energy Policy Act of 2005 Section 369(p), UHOP published an update report to the 1987 technical and economic assessment of domestic heavy oil resources that was prepared by the Interstate Oil and Gas Compact Commission. The UHOP report, entitled 'A Technical, Economic, and Legal Assessment of North American Heavy Oil, Oil Sands, and Oil Shale Resources' was published in electronic and hard copy form in October 2007. Second, UHOP developed of a comprehensive, publicly accessible online repository of unconventional oil resources in North America based on the DSpace software platform. An interactive map was also developed as a source of geospatial information and as a means to interact with the repository from a geospatial setting. …
Date:
October 20, 2009
Creator:
Bauman, J.; Burian, S.; Deo, M.; Eddings, E.; Gani, R.; Goel, R. et al.
Object Type:
Report
System:
The UNT Digital Library
VH-71/VXX Presidential Helicopter Program: Background and Issues for Congress
This report discusses the VH-71 program that is intended to provide 23 new presidential helicopters to replace the current fleet of 19 aging presidential helicopters.
Date:
October 20, 2009
Creator:
O'Rourke, Ronald
Object Type:
Report
System:
The UNT Digital Library
V-22 Osprey Tilt-Rotor Aircraft: Background and Issues for Congress
This report discusses background information on the V-22 Osprey Tilt-Rotor Aircraft, as well as procurement and related oversight issues for Congress.
Date:
October 20, 2009
Creator:
O'Rourke, Ronald
Object Type:
Report
System:
The UNT Digital Library
Design study of primary ion provider for RHIC-EBIS
Brookhaven National Laboratory (BNL) has developed the new pre-injector system, Electron Beam Ion Source (EBIS) for Relativistic Heavy Ion Collider (RHIC) and NASA Space Radiation Laboratory (NSRL). Design of primary ion provider is an essential problem since it is required to supply beams with different ion species to multiple users simultaneously. The laser ion source with a defocused laser can provide a low charge state and low emittance ion beam, and is a candidate for the primary ion source for RHIC-EBIS. We show a suitable design with appropriate drift length and solenoid, which helps to keep sufficient total charge number with longer pulse length. The whole design of primary ion source, as well as optics arrangement, solid targets configuration and heating about target, is presented.
Date:
September 20, 2009
Creator:
Kondo, K.; Kanesue, T.; Tamura, J. & Okamura, M.
Object Type:
Article
System:
The UNT Digital Library
Drift distance survey in DPIS for high current beam production
In a laser ion source, plasma drift distance is one of the most important design parameters. Ion current density and beam pulse width are defined by plasma drift distance between laser target and beam extraction position. In direct plasma injection scheme (DPIS), which uses a laser ion source and Radio Frequency Quadrupole (RFQ) linac, we can apply relatively higher electric field at the beam extraction due to the unique shape of a positively biased electrode. However, when we aim at very high current acceleration like several tens of mA, we observed mismatched beam extraction conditions. We tested three different ion current at ion extraction region by changing plasma drift distance to study better extraction condition. In this experiment, C{sup 6+} beam was accelerated. We confirmed that the matching condition can be improved by controlling plasma drift distance.
Date:
September 20, 2009
Creator:
Kanesue,T.; Okamura, M.; Kondo, K.; Tamura, J.; Kashiwagi, H. & Zhang, Z.
Object Type:
Article
System:
The UNT Digital Library
HOM absorbers for ERL cryomodules at BNL
The physics needs and technical requirements for several future accelerator projects at the Relativistic Heavy Ion Collider (RHIC) all involve electron Energy Recovery Linacs (ERL). The required high-current, high-charge operating parameters make effective higher-order-mode (HOM) damping mandatory and the development of HOM dampers for a prototypical five-cell cavity is actively pursued. An experimental five-cell niobium cavity with ferrite dampers has been constructed, and effective HOM damping has been demonstrated at room and superconducting (SC) temperatures. A novel type of ferrite damper around a ceramic break has been developed for the ERL electron gun and prototype tests are also reported. Contemplated future projects are based on assembling a chain of superconducting cavities in a common cryomodule with the dampers placed in the cold space between the cavities, imposing severe longitudinal space constraints. Various damper configurations have been studied by placing them between two five-cell copper cavities. Measured and simulated copper cavity results, external Q-values of possible dampers and fundamental mode losses are presented.
Date:
September 20, 2009
Creator:
Hahn, H.; Ben-Zvi, Ilan; Hammons, L. & Xu, W.
Object Type:
Article
System:
The UNT Digital Library
Laser plasma in a magnetic field
Laser Ion Source (LIS) is a candidate among various heavy ion sources. A high density plasma produced by Nd:YAG laser with drift velocity realizes high current and high charge state ion beams. In order to obtain higher charged particle ions, we had test experiments of LIS with a magnetic field by which a connement effect can make higher charged beams. We measured total current by Faraday Cup (FC) and analyzed charge distribution by Electrostatic Ion Analyzer (EIA). It is shown that the ion beam charge state is higher by a permanent magnet.
Date:
September 20, 2009
Creator:
Kondo,K.; Kanesue, T.; Tamura, J.; Dabrowski, R. & Okamura, M.
Object Type:
Article
System:
The UNT Digital Library
Low Cost, Light Weight SOlar Modules Based on Organic Photovoltaic Technology
Objectives - In order to produce solar modules for rooftop applications the performance and the lifetime must be improved to 5% - 7% and >10 year life. Task 1 Stability - (1) Flexible modules are stable to 1000 hrs at 65 C/85%RH, (2) Flexible modules in glass are stable to >2000 hrs at 85 C/85%RH (no decrease in performance); (3) Adhesive + filler helps stabilize modules; and (4) Solution coatable barriers exhibit good WVTR; work in-progress. Task 2 Performance: n-type charge carriers - (1) N-type polymers could not be synthesized; and (2) More than 30 fullerene derivatives synthesized and tested, Several deep LUMO derivatives accept charge from deep LUMO polymers, higher voltage observed, Improvement in cell efficiency not observed, morphology problem. Task 3 Performance: grid electrode - (1) Exceeded flatness and roughness goals; (2) Exceeds sheet resistance goals; (3) Achieved %T goals; and (4) Performance equivalent to ITO - 2% Efficiency ( av.); work in-progress.
Date:
September 20, 2009
Creator:
Gaudiana, Russell; GInley, David & Birkmeyer, Robert
Object Type:
Report
System:
The UNT Digital Library
Competition in Federal Contracting: An Overview of the Legal Requirements
This report describes the legal requirements pertaining to competition that presently apply to federal procurement contracts. Among other things, it discusses what contracts are subject to competition requirements; what constitutes full and open competition for government contracts; what is meant by "full and open competition after exclusion of sources"; and circumstances permitting agencies to award contracts on the basis of other than full and open competition.
Date:
August 20, 2009
Creator:
Manuel, Kate M.
Object Type:
Report
System:
The UNT Digital Library
Downstream Heat Flux Profile vs. Midplane T Profile in Tokamaks
The relationship between the midplane scrape-off-layer electron temperature profile and the parallel heat flux profile at the divertor in tokamaks is investigated. A model is applied which takes into account anisotropic thermal diffusion, in a rectilinear geometry with constant density. Eigenmode analysis is applied to the simplified problem with constant thermal diffusivities. A self-similar nonlinear solution is found for the more realistic problem with anisotropically temperature-dependent thermal diffusivities. Numerical solutions are developed for both cases, with spatially dependent heat flux emerging from the plasma. For both constant and temperature-dependent thermal diffusivities it is found that, below about one-half of its peak, the heat flux profile shape at the divertor, compared with the midplane temperature profile shape, is robustly described by the simplest two-point model. However the physical processes are not those assumed in the simplest two-point model, nor is the numerical coefficient relating q||div to Tmp χ||mp/L|| as predicted. For realistic parameters the peak in the heat flux, moreover, can be reduced by a factor of two or more from the two-point model scaling which fits the remaining profile. For temperature profiles in the SOL region above the x-point set by marginal stability, the heat flux profile to the divertor …
Date:
August 20, 2009
Creator:
Goldston, Robert J.
Object Type:
Report
System:
The UNT Digital Library
EMPLOYEE-LED SAFETY COMMITTEES
None
Date:
August 20, 2009
Creator:
JE, GRIFFITH
Object Type:
Article
System:
The UNT Digital Library
Evaluation of a Fish Passage Site in the Walla Walla River Basin, 2009 Annual Report : September 2008 - August 2009.
In 2009, Pacific Northwest National Laboratory (PNNL) evaluated the Touchet Consolidated Facility to determine if it is designed, constructed, operated, and maintained to effectively provide juvenile salmonids with safe passage past the diversion and back to the Touchet River. Completed in 2008, the Touchet Consolidated Facility combined two irrigation diversions with an existing intake for the Touchet Acclimation Facility. The consolidated facility includes a separate fish screen and intake for each user, a pool and chute fishway, and an adult fish trap. The fish screens portions of the facility were evaluated on April 20, 2009, using underwater videography, acoustic Doppler velocimeter measurements, and visual observations while water was diverted to the acclimation facility alone and again as water was diverted to the irrigation system and pond together. The facility is in good condition and is well maintained, although water velocities within the site do not meet the criteria set by the National Marine Fisheries Service (NMFS). Approach velocities above 0.4 ft/s at the upstream end of the facility and decreases in sweep velocity toward the bypass are likely caused by the proximity of the upstream screen to the spill over stoplogs that control flow at the upstream end of the …
Date:
August 20, 2009
Creator:
Chamness, Mickie A.
Object Type:
Report
System:
The UNT Digital Library
The Federal Protective Service and Contract Security Guards: A Statutory History and Current Status
This report discusses the Federal Protective Service (FPS) - within U.S. Immigration Customs Enforcement (ICE) in the Department of Homeland Security (DHS) - is responsible for protecting federal government property, personnel, visitors, and customers, including property leased by the General Services Administration (GSA). This report describes the FPS in brief as well as legislative actions currently being discussed in the 111th Congress that could affect FPS in the future.
Date:
August 20, 2009
Creator:
Reese, Shawn
Object Type:
Report
System:
The UNT Digital Library
GETTING THE MOST OUT OF YOUR SELF ASSESSMENT
None
Date:
August 20, 2009
Creator:
Milliken, N. J. & Norton, E. A.
Object Type:
Article
System:
The UNT Digital Library
Health Insurance Premium Credits Under H.R. 3200
This report describes the premium credits "affordable premium credits" to help certain individuals pay for health insurance in H.R. 3200, America's Affordable Health Choices Act of 2009.
Date:
August 20, 2009
Creator:
Peterson, Chris L.
Object Type:
Report
System:
The UNT Digital Library