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Accomplishments in Field Period Assembly for NCSX* This is how we did it
The National Compact Stellarator Experiment (NCSX) was a collaborative effort between ORNL and PPPL. PPPL provided the assembly techniques with guidance from ORNL to meet design criteria. The individual vacuum vessel segments, modular coils, trim coils, and toroidal field coils components were delivered to the Field Period Assembly (FPA) crew who then would complete the component assemblies and then assemble the final three field period assemblies, each consisting of two sets of three modular coils assembled over a 120o vacuum vessel segment with the trim coils and toroidal field coils providing the outer layer. The requirements for positioning the modular coils were found to be most demanding. The assembly tolerances required for accurate positioning of the field coil windings in order to generate sufficiently accurate magnetic fields strained state of the art techniques in metrology and alignment and required constant monitoring of assembly steps with laser trackers, measurement arms, and photogrammetry. The FPA activities were being performed concurrently while engineering challenges were being resolved. For example, it was determined that high friction electrically isolated shims were needed between the modular coil interface joints and low distortion welding was required in the nose region of those joints. This took months of …
Date:
September 14, 2009
Creator:
Michael Viola, J. Edwards, T. Brown, L. Dudek, R. Ellis, P. Heitzenroeder, R. Strykowsky and Michael Cole
Object Type:
Article
System:
The UNT Digital Library
Air Force C-17 Aircraft Procurement: Background and Issues for Congress
This report provides background information on the C-17 Aircraft program, including previous appropriations, related programs, and issues for Congress.
Date:
September 14, 2009
Creator:
O'Rourke, Ronald
Object Type:
Report
System:
The UNT Digital Library
Atmospheric Dispersion at Spatial Resolutions Below Mesoscale for university of Tennessee SimCenter at Chattanooga: Final Report
In Year 1 of this project, items 1.1 and 1.2 were addressed, as well as item 2.2. The baseline parallel computational simulation tool has been refined significantly over the timeline of this project for the purpose of atmospheric dispersion and transport problems; some of these refinements are documented in Chapter 3. The addition of a concentration transport capability (item 1.2) was completed, along with validation and usage in a highly complex urban environment. Multigrid capability (item 2.2) was a primary focus of Year 1 as well, regardless of the fact that it was scheduled for Year 2. It was determined by the authors that due to the very large nature of the meshes required for atmospheric simulations at mesoscale, multigrid was a key enabling technology for the rest of the project to be successful. Therefore, it was addressed early according to the schedule laid out in the original proposal. The technology behind the multigrid capability is discussed in detail in Chapter 5. Also in Year 1, the issue of ground topography specification is addressed. For simulations of pollutant transport in a given region, a key prerequisite is the specification of the detailed ground topography. The local topography must be placed …
Date:
September 14, 2009
Creator:
Whitfield, Dr. David & Hyams, Dr. Daniel
Object Type:
Report
System:
The UNT Digital Library
Climate Change: Costs and Benefits of the Cap-and-Trade Provisions of H.R. 2454
This report examines seven studies that project the costs of H.R. 2454 to 2030 or beyond. H.R. 2454's climate-related environmental benefit should be considered in a global context and the desire to engage the developing world in the reduction effort.
Date:
September 14, 2009
Creator:
Parker, Larry & Yacobucci, Brent D.
Object Type:
Report
System:
The UNT Digital Library
Closing the Guantanamo Detention Center: Legal Issues
This report discusses selected constitutional issues that may arise in the criminal prosecution of detainees, emphasizing the procedural and substantive protections that are utilized in different adjudicatory forums.
Date:
September 14, 2009
Creator:
Garcia, Michael J.; Bazan, Elizabeth B.; Mason, R. Chuck; Liu, Edward C. & Henning, Anna C.
Object Type:
Report
System:
The UNT Digital Library
Combating Nuclear Terrorism: Preliminary Observations on Preparedness to Recover from Possible Attacks Using Radiological or Nuclear Materials
Testimony issued by the Government Accountability Office with an abstract that begins "A terrorist's use of a radiological dispersal device (RDD) or improvised nuclear device (IND) to release radioactive materials into the environment could have devastating consequences. The timely cleanup of contaminated areas, however, could speed the restoration of normal operations, thus reducing the adverse consequences from an incident. This testimony examines (1) the extent to which federal agencies are planning to fulfill their responsibilities to assist cities and their states in cleaning up areas contaminated with radioactive materials from RDD and IND incidents; (2) what is known about the federal government's capability to effectively cleanup areas contaminated with radioactive materials from RDD and IND incidents, and (3) suggestions from government emergency management officials on ways to improve federal preparedness to provide assistance to recover from RDD and IND incidents. We also discuss recovery activities in the United Kingdom. This testimony is based on our ongoing review of recovery preparedness issues for which we examined applicable federal laws and guidance; interviewed officials from the Department of Homeland Security (DHS), Federal Emergency Management Agency (FEMA), Department of Energy (DOE), and Environmental Protection Agency (EPA); and surveyed emergency management officials from 13 …
Date:
September 14, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
Congressional Record: Proceedings and Debates of the 111th Congress, First Session
The Congressional Record contains the records for sessions of the U.S. Congress including summaries of proceedings, letters, and speeches for the Senate and House of Representatives. There is a red tab sticking out of page E2255, highlight the speech Hon. Alcee L. Hastings gave about Helen Snapp.
Date:
September 14, 2009
Creator:
United States. Congress.
Object Type:
Book
System:
The Portal to Texas History
The Express-Star (Chickasha, Okla.), Ed. 1 Monday, September 14, 2009
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 14, 2009
Creator:
Pittman, Jerry & Wray, Kelly
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Graphene Growth by Metal Etching on Ru (0001)
Low-energy electron microscopy (LEEM) reveals a new mode of graphene growth on Ru(0001) in which Ru atoms from a step edge are injected under a growing graphene sheet. The injected atoms can form under-graphene islands, or incorporate into the topmost Ru layer, thereby increasing its density and forming dislocation networks. Density functional calculations imply that Ru islands nucleated between the graphene layer and the substrate are energetically stable; scanning tunneling microscopy (STM) reveals that dislocation networks exist near step edges.
Date:
September 14, 2009
Creator:
Loginova, Elena; Maier, Sabine; Stass, Ingeborg; Bartelt, Norman; Feibelman, Peter; Salmeron, Miquel et al.
Object Type:
Article
System:
The UNT Digital Library
[Handwritten letter from Dan Graney to Al Daniels]
Handwritten letter from Dan Graney to Al Daniels discussing sending various checks, and the new Texas Stonewall Democratic Caucus letterhead.
Date:
September 14, 2009
Creator:
unknown
Object Type:
Letter
System:
The UNT Digital Library
Homeland Security Department: FY2010 Appropriations
This report describes the FY2010 appropriation for the department of homeland security (DHS). This report also contains the a detailed discussion of the president's budget request for DHS.
Date:
September 14, 2009
Creator:
Lake, Jennifer E. & Haddal, Chad C.
Object Type:
Report
System:
The UNT Digital Library
Information Security: Concerted Effort Needed to Improve Federal Performance Measures
A letter report issued by the Government Accountability Office with an abstract that begins "Information security is a critical consideration for federal agencies, which depend on information systems to carry out their missions. Increases in reports of security incidents demonstrate the urgency of adequately protecting the federal government's data and information systems. Agencies are required to report to the Office of Management and Budget (OMB) on their information security programs, and OMB is to report results to Congress. Agencies have reported progress in carrying out their activities and have used a variety of measures as the basis of that reporting. GAO was asked to (1) describe key types and attributes of performance measures, (2) identify practices of leading organizations for developing and using measures to guide and monitor information security activities, (3) identify the measures used by federal agencies and how they are developed, and (4) assess the federal government's practices for informing Congress on the effectiveness of information security programs. To do this, GAO met with leading organizations, consulted with experts, and reviewed major federal agencies' policies and practices."
Date:
September 14, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Inherently Governmental Functions and Department of Defense Operations: Background, Issues, and Options for Congress
None
Date:
September 14, 2009
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Monodisperse metal nanoparticle catalysts on silica mesoporous supports: synthesis, characterizations, and catalytic reactions
The design of high performance catalyst achieving near 100% product selectivity at maximum activity is one of the most important goals in the modern catalytic science research. To this end, the preparation of model catalysts whose catalytic performances can be predicted in a systematic and rational manner is of significant importance, which thereby allows understanding of the molecular ingredients affecting the catalytic performances. We have designed novel 3-dimensional (3D) high surface area model catalysts by the integration of colloidal metal nanoparticles and mesoporous silica supports. Monodisperse colloidal metal NPs with controllable size and shape were synthesized using dendrimers, polymers, or surfactants as the surface stabilizers. The size of Pt, and Rh nanoparticles can be varied from sub 1 nm to 15 nm, while the shape of Pt can be controlled to cube, cuboctahedron, and octahedron. The 3D model catalysts were generated by the incorporation of metal nanoparticles into the pores of mesoporous silica supports via two methods: capillary inclusion (CI) and nanoparticle encapsulation (NE). The former method relies on the sonication-induced inclusion of metal nanoparticles into the pores of mesoporous silica, whereas the latter is performed by the encapsulation of metal nanoparticles during the hydrothermal synthesis of mesoporous silica. The …
Date:
September 14, 2009
Creator:
Somorjai, G.A.
Object Type:
Book
System:
The UNT Digital Library
Observation of Magnetocoriolis Waves in a Liquid Metal Taylor-Couette Experiment
The first observation of fast and slow magnetocoriolis (MC) waves in a laboratory experiment is reported. Rotating nonaxisymmetric modes arising from a magnetized turbulent Taylor-Couette flow of liquid metal are identified as the fast and slow MC waves by the dependence of the rotation frequency on the applied field strength. The observed slow MC wave is marginally damped but will become destabilized by the magnetorotational instability with a modest increase in rotation rate.
Date:
September 14, 2009
Creator:
M.D. Nornberg, H. Ji, E. Schartman, A. Roach, and J. Goodman
Object Type:
Report
System:
The UNT Digital Library
The Oklahoma Daily (Norman, Okla.), Vol. 95, No. 18, Ed. 1 Monday, September 14, 2009
Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date:
September 14, 2009
Creator:
Hughes, Jamie
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Oxidation of Mercury in Products of Coal Combustion
Laboratory measurements of mercury oxidation during selective catalytic reduction (SCR) of nitric oxide, simulation of pilot-scale measurements of mercury oxidation and adsorption by unburned carbon and fly ash, and synthesis of new materials for simultaneous oxidation and adsorption of mercury, were performed in support of the development of technology for control of mercury emissions from coal-fired boilers and furnaces. Conversion of gas-phase mercury from the elemental state to water-soluble oxidized form (HgCl{sub 2}) enables removal of mercury during wet flue gas desulfurization. The increase in mercury oxidation in a monolithic V{sub 2}O{sub 5}-WO{sub 3}/TiO{sub 2} SCR catalyst with increasing HCl at low levels of HCl (< 10 ppmv) and decrease in mercury oxidation with increasing NH{sub 3}/NO ratio during SCR were consistent with results of previous work by others. The most significant finding of the present work was the inhibition of mercury oxidation in the presence of CO during SCR of NO at low levels of HCl. In the presence of 2 ppmv HCl, expected in combustion products from some Powder River Basin coals, an increase in CO from 0 to 50 ppmv reduced the extent of mercury oxidation from 24 {+-} 3 to 1 {+-} 4%. Further increase in …
Date:
September 14, 2009
Creator:
Walsh, Peter; Tong, Giang; Bhopatkar, Neeles; Gale, Thomas; Blankenship, George; Ingram, Conrad et al.
Object Type:
Report
System:
The UNT Digital Library
Quality and Performance of LED Flashlights in Kenya: Common End User Preferences and Complaints
Flashlights that use LED technology have quickly emerged as the dominant source of portable lighting in Kenya. While flashlights do not normally provide a substitute for kerosene and other highly inefficient fuels, they are an important early manifestation of LED lighting in the developing world that can serve as a platform - or deterrent - to the diffusion of the technology into the broader off-grid lighting market. The lead acid batteries embedded in flashlights also represent an important source of hazardous waste, and flashlight durability is thus an important determinant of the rate of waste disposal. Low-cost LED flashlights with prices from $1 to $4 are now widely available in shops and markets throughout Kenya. The increased penetration of LED technology in the flashlight market is significant, as over half of all Kenyan households report owning a flashlight (Kamfor, 2002). While this shift from conventional incandescent technology to modern LEDs may appear to be a promising development, end users that our research team interviewed expressed a number of complaints about the quality and performance of these new flashlights. This raises concerns about the interests of low-income flashlight users, and it may also indicate the onset of a broader market spoiling …
Date:
September 14, 2009
Creator:
Tracy, Jenny; Jacobson, Arne & Mills, Evan
Object Type:
Report
System:
The UNT Digital Library
Solubility of Budesonide, Hydrocortisone, and Prednisolone in Ethanol + Water Mixtures at 298.2 K
This article discusses the solubility of budesonide, hydrocortisone, and prednisolone in ethanol and water mixtures at 298.2 K.
Date:
September 14, 2009
Creator:
Ali, Hany Saleh Mohamed; Blagden, Nicholas; York, Peter; Soltanpour, Shahla; Acree, William E. (William Eugene) & Jouyban, Abolghasem
Object Type:
Article
System:
The UNT Digital Library
Sweetwater Reporter (Sweetwater, Tex.), Vol. 111, No. 255, Ed. 1 Monday, September 14, 2009
Daily newspaper from Sweetwater, Texas that includes local, state, and national news along with advertising.
Date:
September 14, 2009
Creator:
Rodriguez, Tatiana
Object Type:
Newspaper
System:
The Portal to Texas History
Syria: Background and U.S. Relations
None
Date:
September 14, 2009
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Transmittal of the Calculation Package that Supports the Analysis of Performance of the Environmental Management Waste Management Facility Oak Ridge, Tennessee (Based 5-Cell Design Issued 8/14/09)
This document presents the results of an assessment of the performance of a build-out of the Environmental Management Waste Management Facility (EMWMF). The EMWMF configuration that was assessed includes the as-constructed Cells 1 through 4, with a groundwater underdrain that was installed beneath Cell 3 during the winter of 2003-2004, and Cell 5, whose proposed design is an Addendum to Remedial Design Report for the Disposal of Oak Ridge Reservation Comprehensive Environmental Response, Compensation, and Liability Act of 1980 Waste, Oak Ridge, Tennessee, DOE/OR/01-1873&D2/A5/R1. The total capacity of the EMWMF with 5 cells is about 1.7 million cubic yards. This assessment was conducted to determine the conditions under which the approved Waste Acceptance Criteria (WAC) for the EMWMF found in the Attainment Plan for Risk/Toxicity-Based Waste Acceptance Criteria at the Oak Ridge Reservation, Oak Ridge, Tennessee [U.S. Department of Energy (DOE) 2001a], as revised for constituents added up to October 2008, would remain protective of public health and safety for a five-cell disposal facility. For consistency, the methods of analyses and the exposure scenario used to predict the performance of a five-cell disposal facility were identical to those used in the Remedial Investigation and Feasibility Study (RI/FS) and its addendum …
Date:
September 14, 2009
Creator:
Williams, M. J.
Object Type:
Report
System:
The UNT Digital Library
The Altus Times (Altus, Okla.), Vol. 110, No. 36, Ed. 1 Sunday, September 14, 2008
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 14, 2008
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
DEVELOPMENT OF A NEW TYPE A(F)RADIOACTIVE MATERIAL PACKAGING FOR THE DEPARTMENT OF ENERGY
In a coordinated effort, the Department of Transportation (DOT) and Nuclear Regulatory Commission (NRC) proposed the elimination of the Specification Packaging from 49 CFR 173.[1] In accordance with the Federal Register, issued on October 1, 2004, new fabrication of Specification Packages would no longer be authorized. In accordance with the NRC final rulemaking published January 26, 2004, Specification Packagings are mandated by law to be removed from service no later than October 1, 2008. This coordinated effort and resulting rulemaking initiated a planned phase out of Specification Type B and Type A fissile (F) material transportation packages within the Department of Energy (DOE) and its subcontractors. One of the Specification Packages affected by this regulatory change is the UN1A2 Specification Package, per DOT 49 CFR 173.417(a)(6). To maintain continuing shipments of DOE materials currently transported in UN1A2 Specification Package after the existing authorization expires, a replacement Type A(F) material packaging design is under development by the Savannah River National Laboratory. This paper presents a summary of the prototype design effort and testing of the new Type A(F) Package development for the DOE. This paper discusses the progress made in the development of a Type A Fissile Packaging to replace the …
Date:
September 14, 2008
Creator:
Blanton, P. & Eberl, K.
Object Type:
Article
System:
The UNT Digital Library