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PILOT PLANT SHUTDOWN AND Pu-Al PROCESSING
The large aqueous pilot plant facilities at ORNL were cleaned and are being put in standby condition. Experience was gained during the year as anion exchange was used to recover more than one kg of plutonium left in the exploded evaporator system. This experience is being applied to a new recovery program just beginning in cell 1 of Building 4507. (auth)
Date:
September 25, 1961
Creator:
Bresee, J.C.
Object Type:
Report
System:
The UNT Digital Library
Configuration Management Program Plan
Westinghouse Savannah River Company (WSRC) has established a configuration management (CM) plan to execute the SRS CM Policy and the requirements of the DOE Order 4700.1. The Reactor Restart Division (RRD) has developed its CM Plan under the SRS CM Program and is implementing it via the RRD CM Program Plan and the Integrated Action Plan. The purpose of the RRD CM program is to improve those processes which are essential to the safe and efficient operation of SRS production reactors. This document provides details of this plan.
Date:
September 25, 1991
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
A cryogenic system design for the international thermonuclear experimental reactor (ITER)
A conceptual design for ITER was completed last year. The author developed a suitable cryogenic system for ITER as part of this conceptual design effort. An overview of the design is reported. Emphasis is on the fact that cryogenics is a mature science, and a system supporting ITER needs can be made from time-proven components without loss of efficiency or reliability. Because of the large size of the ITER cryogenic system, large numbers of compressors and expanders must be used. Very high reliability is assured by arranging these components in parallel banks where servicing of individual components can be done without interruption of operations. This and other ideas based on the author's experience with Mirror Fusion Test Facility (MFTF) operations are described. 5 refs., 3 figs.
Date:
September 25, 1991
Creator:
Slack, D.S.
Object Type:
Article
System:
The UNT Digital Library
GRAPHITE-STAINLESS STEEL COMPATIBILITY STUDIES
S>The compatibility of type 304L stainless steel in intimate contact with graphite is being studied as a function of temperature and contact pressure. This study is an outgrowth of materials compatibility problems in present and advanced gas-cooled reactors, where structural members in direct contact with graphite provide the possibility of both carburization and self-welding. Initial studies were concerned with surface reactions in the absence of gaseous contaminants under a vacuum of 10/sup -6/ mm Hg at 540 to 705 deg C. Stainless steel specimens are pretreated to provide three surface conditions: H/sub 2/- fired, preoxidized, and Cu-plated. Surface contact pressures ranged from 0 to 10,000 psi. Test results are presented which establish the lower temperature limit for significant diffusion between graphite and stainless steel at approximately 60O deg C. Above this temperature, diffusion between untreated or H2-fired stainless steel surfaces was found to effect complete bonding of the two materials at contact pressures as low as 500 psi. Bonding was effectively prevented by the presence of either an oxide film or a Cu plate at temperatures up to 700 deg C. Where bonding occurred, diffusion rates measured for C in stainless steel were comparable with those reported for stainless steel …
Date:
September 25, 1962
Creator:
Fleischer, B.; DeVan, J. H. & Coobs, J. H.
Object Type:
Report
System:
The UNT Digital Library
Preliminary proposal: fundamental combustion modeling
None
Date:
September 25, 1974
Creator:
Gelinas, R. J.
Object Type:
Report
System:
The UNT Digital Library
Luminosity evolution at the SSC
A realistic'' model for the time evolution of the SSC luminosity is given. The SDC instrumentation and physics strategy should be informed by this profile. 1 ref.
Date:
September 25, 1991
Creator:
Kirk, T.B.W.
Object Type:
Report
System:
The UNT Digital Library
Results of TMX operations: January-July 1980
This interim report summarizes results from the Tandem Mirror Experiment (TMX) during the period January to July 1980 and describes the physics experiments, the machine operation, and the diagnostics that were added to TMX during this period. This operating period followed the initial proof-of-principle TMX experiments and predated the ongoing final experiments preceding TMX shutdown for modification to TMX Upgrade. The results described in this report include measurements of plasma parameters and plasma behavior which confirm the initial TMX results that demonstrated that the tandem mirror configuration can be generated and sustained by neutral beam injection and that the tandem mirror configuration improves confinement of magnetic mirror systems.
Date:
September 25, 1980
Creator:
Correll, D.L. & Drake, R.P. (eds.)
Object Type:
Report
System:
The UNT Digital Library
Measurement and Modeling of Advanced Coal Conversion Processes
The objectives of this study are to establish the mechanisms and rates of basic steps in coal conversion processes, to integrate and incorporate this information into comprehensive computer models for coal conversion processes, to evaluate these models and to apply them to gasification, mild gasification and combustion in heat engines. (VC)
Date:
September 25, 1991
Creator:
Solomon, P. R.; Serio, M. A.; Hamblen, D. G.; Smoot, L. D. & Brewster, B. S.
Object Type:
Report
System:
The UNT Digital Library
Numerical simulation of the stability in a cable-in-conduit conductor developed for fusion-magnet applications
The stability margins of the US-Demonstration Poloidal Coil (US-DPC) and the International Thermonuclear Experimental Reactor (ITER) TF coils have been modeled numerically using the computer program CICC. The computed US-DPC limiting current, I{sub lim}, compares favorably with the values determined experimentally. Using the detailed program CICC output, we investigated the DPC quench initiation mechanism in each of the three stability regions. In the ill-cooled region, the imposed heat pulse heats the conductor to the current-sharing temperature, T{sub cs}. In the transition region, the resistance heating after the pulse must be strong enough to overcome the induced flow reversal. In the well-cooled region, good heat transfer heats the helium during the pulse. After the pulse, these high helium temperatures along with poor heat transfer cause the conductor to quench. Changes in I{sub lim} agree with Dresner's relationship. I{sub lim} can be improved by decreasing the copper resistivity, the helium fraction, or the conductor diameter. Preliminary results show the ITER and TF coil operating point is in the well-cooled region. 10 refs., 7 figs., 1 tab.
Date:
September 25, 1991
Creator:
Wong, R.L.; Shen, S.S. (Lawrence Livermore National Lab., CA (United States)); Yeaw, C.T. (Wisconsin Univ., Madison, WI (United States)) & Miller, J.R. (National High Magnetic Field Laboratory, Florida State University (USA))
Object Type:
Article
System:
The UNT Digital Library
Current drive and heating systems for an ITER HARD option
A conceptual design has been developed for a reference current drive and heating system for a HARD (High Aspect Ratio Design) option for ITER. Twelve neutral beam modules, each rated at 1.3MeV and 9.2MW, perform plasma heating and current drive. An electron cyclotron system is used for initiating the plasma and for disruption control. An alternate system has been defined which is comprised of a lower hybrid and ion cyclotron system for heating and current drive, augmented by the same electron cyclotron system proposed for the reference system. 7 refs., 8 figs., 1 tab.
Date:
September 25, 1991
Creator:
Lindquist, W.; Bulmer, R.; Fenstermacher, M.; Nevins, W.; Parker, J.; Smith, G. et al.
Object Type:
Article
System:
The UNT Digital Library
New tools using the hardware performance monitor to help users tune programs on the Cray X-MP
The performance of a Cray system is highly dependent on the tuning techniques used by individuals on their codes. Many of our users were not taking advantage of the tuning tools that allow them to monitor their own programs by using the Hardware Performance Monitor (HPM). We therefore modified UNICOS to collect HPM data for all processes and to report Mflop ratings based on users, programs, and time used. Our tuning efforts are now being focused on the users and programs that have the best potential for performance improvements. These modifications and some of the more striking performance improvements are described.
Date:
September 25, 1991
Creator:
Engert, D. E.; Rudsinski, L. (Argonne National Lab., IL (United States)) & Doak, J. (Cray Research, Inc., Minneapolis, MN (United States))
Object Type:
Article
System:
The UNT Digital Library
Staff management of security personnel at Martin Marietta Energy Systems, Inc. , Portsmouth Gaseous Diffusion Plant
The Portsmouth Gaseous Diffusion Plant Security and Police Operations Department is responsible for protecting the US Department of Energy interests at the Portsmouth Plant from theft, sabotage, and other hostile acts that may adversely affect national security, the public health and safety, or property at the Department of Energy facility. This audit's purpose was to evaluate Martin Marietta Energy Systems, Inc.'s staff management at the Portsmouth Plant Security Department. The Portsmouth Plant Security Department could reduce operating cost up to an estimated $4.4 million over 5 years by: (1) Eliminating up to 14 unnecessary staff positions, and (2) reducing the length of relief breaks. These economies could be realized through implementing written operating procedures and negotiating removal of certain labor union restrictions. 2 tabs.
Date:
September 25, 1991
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Shutdown of the Federal Government: Causes, Processes, and Effects
This report discusses the causes of funding gaps and shutdowns of the federal government, processes that are associated with shutdowns, and how agency operations may be affected by shutdowns. The report concludes with a discussion of potential issues for Congress.
Date:
September 25, 2013
Creator:
Brass, Clinton T.
Object Type:
Report
System:
The UNT Digital Library
Navy Ohio Replacement (SSBN[X]) Ballistic Missile Submarine Program: Background and Issues for Congress
This report discusses the Navy's plan to develop and design a class of 12 next-generation ballistic missile submarines, or SSBN(X)s, as replacements for the 14 Ohio class SSBNs currently in operation. The report explores certain related issues for Congress, including the affordability of the project and its potential impact on other Navy shipbuilding programs, alternatives to the program, and which shipyard or shipyards will build the proposed ships.
Date:
September 25, 2013
Creator:
O'Rourke, Ronald
Object Type:
Report
System:
The UNT Digital Library
The Overseas Private Investment Corporation: Background and Legislative Issues
This report provides: (1) a background on Overseas Private Investment Corporation (OPIC) origins and program operations; (2) discussion of the international development finance context; and (3) analysis of key issues for Congress related to OPIC.
Date:
September 25, 2013
Creator:
Akhtar, Shayerah I.
Object Type:
Report
System:
The UNT Digital Library
Tajikistan: Recent Developments and U.S. Interests
This report outlines the severe challenges faced by Tajikistan since its five-year civil war ended in 1997, including such problems as deep poverty and poor governance. The report discusses U.S. policy and assistance. Basic facts and biographical information are provided. This report may be updated.
Date:
September 25, 2013
Creator:
Nichol, Jim
Object Type:
Report
System:
The UNT Digital Library
Medicare: Per Capita Method Can Be Used to Profile Physicians and Provide Feedback on Resource Use
A letter report issued by the Government Accountability Office with an abstract that begins "The Medicare Improvements for Patients and Providers Act of 2008 directed the Secretary of Health and Human Services to develop a program to give physicians confidential feedback on the Medicare resources used to provide care to Medicare beneficiaries. GAO was asked to evaluate the per capita methodology for profiling physicians--a method which measures a patient's resource use over a fixed period of time and attributes that resource use to physicians--in order to assist the Centers for Medicare & Medicaid Services (CMS) with the development of a physician feedback approach. In response, this report examines (1) the extent to which physicians in selected specialties show stable practice patterns and how beneficiary utilization of services varies by physician resource use level; (2) factors to consider in developing feedback reports on physicians' performance, including per capita resource use; and (3) the extent to which feedback reports may influence physician behavior. GAO focused on four medical specialties and four metropolitan areas chosen for their geographic diversity and range in average Medicare spending per beneficiary. To identify considerations for developing a physician feedback system, GAO reviewed the literature and interviewed officials …
Date:
September 25, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Missile Defense: Actions Needed to Improve Planning and Cost Estimates for Long-Term Support of Ballistic Missile Defense
A letter report issued by the Government Accountability Office with an abstract that begins "The Department of Defense (DOD) has spent a total of over $115 billion since the mid-1980s to develop a Ballistic Missile Defense System (BMDS) comprised of land, air, and sea-based elements--such as missiles and radars--working together as an integrated system. Since the cost to operate and support a weapon system usually accounts for most of a system's lifetime costs, the resources needed to fund BMDS could be significant as DOD fields an increasing number of BMDS elements. In 2005, DOD began planning to transition responsibility for supporting BMDS elements from the Missile Defense Agency (MDA) to the services. GAO was asked to assess the extent to which DOD has (1) planned to support BMDS elements over the long-term, and (2) identified long-term operation and support costs. To do so, GAO analyzed 7 BMDS elements that will be fielded by 2015, compared DOD's plans and cost estimates to DOD and GAO key principles, and assessed the extent to which MDA and the services have agreed on responsibilities for supporting and funding BMDS elements."
Date:
September 25, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Department of Homeland Security: Opportunities Exist to Better Evaluate and Coordinate Border and Maritime Research and Development
A letter report issued by the Government Accountability Office with an abstract that begins "Between fiscal years 2010 and 2012, the Department of Homeland Security's (DHS) border and maritime research and development (R&D) components reported producing 97 R&D deliverables at an estimated cost of $177 million. The type of border and maritime R&D deliverables produced by DHS's Science and Technology (S&T) Directorate, the Coast Guard, and the Domestic Nuclear Detection Office (DNDO) varied, and R&D customers we met with reported mixed views on the impact of the R&D deliverables they received. These deliverables were wide-ranging in their cost and scale, and included knowledge products and reports, technology prototypes, and software (as shown in the figure below). The Coast Guard and DNDO reported having processes in place to collect and evaluate feedback from its customers regarding the results of R&D deliverables. However, S&T has not established timeframes and milestones for collecting and evaluating feedback from its customers on the extent to which the deliverables it provides to DHS components--such as US Customs and Border Protection (CBP)--are meeting its customer's needs. Doing so could help S&T better determine the usefulness and impact of its R&D projects and deliverables and make better-informed decisions …
Date:
September 25, 2013
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Motor Fuels: Stakeholder Views on Compensating for the Effects of Gasoline Temperature on Volume at the Pump
A letter report issued by the Government Accountability Office with an abstract that begins "The volume, but not the energy content, of hydrocarbon fuels, such as gasoline and diesel, varies in response to changes in temperature. Thus, because of expansion, the energy content per gallon of 90 degree fuel is less than that of 60 degree fuel. States and localities adopt and enforce weights and measures regulations, often using the model regulatory standards published by the National Institute of Standards and Technology (NIST). Although technology now exists to compensate for the effects of temperature on gas volume, the costs of doing so at the retail level have become the subject of much debate among weights and measures officials, consumer groups, and representatives of the petroleum and fuel marketing industries. GAO was asked to provide information on (1) the views of U.S. stakeholders on the costs to implement automatic temperature compensation, (2) the views of U.S. stakeholders on who would bear these costs, and (3) the reasons some state and national governments have adopted or rejected automatic temperature compensation. To do this work, GAO reviewed NIST and other documents and congressional testimony; interviewed stakeholders from 3 federal agencies, 17 states, and …
Date:
September 25, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Energy Markets: Analysis of More Past Mergers Could Enhance Federal Trade Commission's Efforts to Maintain Competition in the Petroleum Industry
A letter report issued by the Government Accountability Office with an abstract that begins "During the late 1990s, many petroleum companies merged to stay profitable while crude oil prices were low, and in recent years mergers have continued. Congress and others have concerns about the impact mergers might be having on competition in U.S. petroleum markets. The Federal Trade Commission (FTC) has the authority to maintain competition in the petroleum industry and reviews proposed mergers to determine whether they are likely to diminish competition or increase prices, among other things. GAO was asked to examine (1) mergers in the U.S. petroleum industry and changes in market concentration since 2000 and (2) the steps FTC uses to maintain competition in the U.S. petroleum industry, and the roles other federal and state agencies play in monitoring petroleum industry markets. In conducting this study, GAO worked with petroleum industry experts to delineate regional markets and to develop estimates of refinery gasoline production capacity in order to calculate market concentration. GAO used public and private data as well as interviews for its analyses."
Date:
September 25, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Central America: U.S. Agencies Considered Various Factors in Funding Security Activities, but Need to Assess Progress in Achieving Interagency Objectives
A letter report issued by the Government Accountability Office with an abstract that begins "Since fiscal year 2008, U.S. agencies allocated over $1.2 billion in funding for Central America Regional Security Initiative (CARSI) activities and non-CARSI funding that supports CARSI goals. As of June 1, 2013, the Department of State (State) and the United States Agency for International Development (USAID) obligated at least $463 million of the close to $495 million in allocated funding for CARSI activities, and disbursed at least $189 million to provide partner countries with equipment, technical assistance, and training to improve interdiction and disrupt criminal networks. Moreover, as of March 31, 2013, U.S. agencies estimated that they had allocated approximately $708 million in non-CARSI funding that supports CARSI goals, but data on disbursements were not readily available. U.S. agencies, including State, the Department of Defense (DOD), and the Department of Justice, use this funding to provide equipment, technical assistance, and training, as well as infrastructure and investigation assistance to partner countries. For example, DOD allocated $25 million in funding to help Guatemala establish an interagency border unit to combat drug trafficking."
Date:
September 25, 2013
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Combating Terrorism: DHS Should Take Action to Better Ensure Resources Abroad Align with Priorities
A letter report issued by the Government Accountability Office with an abstract that begins "The Department of Homeland Security (DHS) carries out a variety of programs and activities abroad within its areas of expertise that could have the effect of thwarting terrorists and their plots while also combating other categories of transnational crime, and DHS expended approximately $451 million on programs and activities abroad in fiscal year 2012. For example, through the Visa Security Program, DHS has deployed personnel abroad to help prevent the issuance of visas to people who might pose a threat. As of May 2013, DHS has stationed about 1,800 employees in almost 80 countries to conduct these and other activities. In addition, DHS has delivered training and technical assistance in areas such as border and aviation security to officials from about 180 countries to enhance partner nations' security capacities."
Date:
September 25, 2013
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Defense Acquisitions: DOD's Requirements Determination Process Has Not Been Effective in Prioritizing Joint Capabilities
A letter report issued by the Government Accountability Office with an abstract that begins "Increasing combat demands and fiscal constraints make it critical for the Department of Defense (DOD) to ensure that its weapon system investments not only meet the needs of the warfighter, but make the most efficient use of available resources. GAO's past work has shown that achieving this balance has been a challenge and weapon programs have often experienced cost growth and delayed delivery to the warfighter. In 2003, DOD implemented the Joint Capabilities Integration and Development System (JCIDS) to prioritize and ensure that the warfighter's most essential needs are met. In response to Senate Report 109-69, GAO reported in March 2007 that DOD lacks an effective approach to balance its weapon system investments with available resources. This follow-on report focuses on (1) whether the JCIDS process has achieved its objective to prioritize joint warfighting needs and (2) factors that have affected DOD's ability to effectively implement JCIDS. To conduct its work, GAO reviewed JCIDS guidance and capability documents and budgetary and programming data on major weapon systems, and interviewed DOD officials."
Date:
September 25, 2008
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library