Configuration Management Program Plan (open access)

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
Theoretical study of the structure, energetics, and dynamics of silicon and carbon systems using tight-binding approaches (open access)

Theoretical study of the structure, energetics, and dynamics of silicon and carbon systems using tight-binding approaches

Semiempirical interatomic potentials are developed for silicon and carbon by modeling the total energy of the system using tight-binding approaches. The parameters of the models were obtained by fitting to results from accurate first-principles Local Density Functional calculations. Applications to the computation of phonons as a function of volume for diamond-structured silicon and carbon and the thermal expansions for silicon and diamond yields results which agree well with experiment. The physical origin of the negative thermal expansion observed in silicon is explained. A tight-binding total energy model is generated capable of describing carbon systems with a variety of atomic coordinations and topologies. The model reproduces the total energy versus volume curves of various carbon polytypes as well as phonons and elastic constants of diamond and graphite. The model has also been used in the molecular-dynamics simulation of the properties of carbon clusters. The calculated ground-state geometries of small clusters (C{sub 2}--C{sub 10}) correlates well with results from accurate quantum chemical calculations, and the structural trend of clusters from C{sub 2} to C{sub 60} are investigated. 67 refs., 19 figs.
Date: October 25, 1991
Creator: Xu, Chunhui.
Object Type: Report
System: The UNT Digital Library
A cryogenic system design for the international thermonuclear experimental reactor (ITER) (open access)

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
Monthly energy review, October 1991. [Contains glossary] (open access)

Monthly energy review, October 1991. [Contains glossary]

This report presents current data on production, consumption, stocks, imports, exports, and prices of the principal energy commodities in the United States. Also included are data on international production of crude oil, consumption of petroleum products, petroleum stocks, and production of electricity from nuclear-powered facilities. 36 figs., 57 tabs.
Date: October 25, 1991
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Advanced nuclear reactor public opinion project (open access)

Advanced nuclear reactor public opinion project

This Interim Report summarizes the findings of our first twenty in-depth interviews in the Advanced Nuclear Reactor Public Opinion Project. We interviewed 6 industry trade association officials, 3 industry attorneys, 6 environmentalists/nuclear critics, 3 state officials, and 3 independent analysts. In addition, we have had numerous shorter discussions with various individuals concerned about nuclear power. The report is organized into the four categories proposed at our April, 1991, Advisory Group meeting: safety, cost-benefit analysis, science education, and communications. Within each category, some change of focus from that of the Advisory Group has been required, to reflect the findings of our interviews. This report limits itself to describing our findings. An accompanying memo draws some tentative conclusions.
Date: July 25, 1991
Creator: Benson, B.
Object Type: Report
System: The UNT Digital Library
Luminosity evolution at the SSC (open access)

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
Algebraic calculation of stroboscopic maps of ordinary, nonlinear differential equations (open access)

Algebraic calculation of stroboscopic maps of ordinary, nonlinear differential equations

The relation between the parameters of a differential equation and corresponding discrete maps are becoming increasingly important in the study of nonlinear dynamical systems. Maps are well adopted for numerical computation and several universal properties of them are known. Therefore some perturbation methods have been proposed to deduce them for physical systems, which can be modeled by an ordinary differential equation (ODE) with a small nonlinearity. A new iterative, rigorous algebraic method for the calculation of the coefficients of a Taylor expansion of a stroboscopic map from ODE's with not necessarily small nonlinearities is presented. It is shown analytically that most of the coefficients are small for a small integration time and grow slowly in the course of time if the flow vector field of the ODE is polynomial and if the ODE has fixed point in the origin. Approximations of different orders respectively of the rest term are investigated for several nonlinear systems. 31 refs., 16 figs.
Date: July 25, 1991
Creator: Wackerbauer, R. (Max-Planck-Institut fuer Extraterrestrische Physik, Garching (Germany)); Huebler, A. (Illinois Univ., Urbana, IL (United States). Center for Complex Systems Research) & Mayer-Kress, G. (Los Alamos National Lab., NM (United States) California Univ., Santa Cruz, CA (United States). Dept. of Mathematics)
Object Type: Article
System: The UNT Digital Library
Measurements of surface ocean carbon dioxide partial pressure during WOCE (open access)

Measurements of surface ocean carbon dioxide partial pressure during WOCE

Progress during the past year of research under Measurements of Surface Ocean Carbon Dioxide Partial Pressure During WOCE'' has been significant. As was described in our previous progress report, the startup phase of this research was severely frustrated by delays in the US WOCE Hydrographic Program (WHP), which in turn were caused by delays in the mid-life refit of the R/V Knorr. As a result the high latitude southeastern Pacific work (WHP lines P19S and P16S) originally scheduled for the 1990 austral summer has still not been carried out. As a substitute, the smaller R/V Thomas Washington was pressed into service during mid-1991 to carry out lower-latitude portions of the WHP P16 and P17 lines - the TUNES Expedition. Because this ship is much smaller than the R/V Knorr, she could not carry a full complement of WHP programs and seagoing personnel and was restricted by her size and the time of year to lower-latitude work. Our original proposal for carbon dioxide measurements was designed to divide the work between legs in which we participated as part of the WHP dissolved CFC program (under separate NSF funding) and legs in which we entrusted the operation of our system to other …
Date: February 25, 1992
Creator: Weiss, R.F.
Object Type: Report
System: The UNT Digital Library
Heavy metal contamination in TIMS Branch sediments (open access)

Heavy metal contamination in TIMS Branch sediments

The objective of this memorandum is to summarize results of previous sediment studies on Tims Branch and Steed's Pond conducted by Health Protection (HP) and by the Savannah River Laboratory (SRL) in conjunction with Reactor Materials Engineering Technology (RMET). The results for other heavy metals, such as lead, nickel, copper, mercury, chromium, cadmium, zinc, and thorium are also summarized.
Date: June 25, 1990
Creator: Pickett, J.B.
Object Type: Report
System: The UNT Digital Library
Measurement and Modeling of Advanced Coal Conversion Processes (open access)

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 (open access)

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 (open access)

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 (open access)

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 (open access)

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
Agreed-Upon Procedures: Black Lung Disability Trust Fund Excise Taxes (open access)

Agreed-Upon Procedures: Black Lung Disability Trust Fund Excise Taxes

Correspondence issued by the General Accounting Office with an abstract that begins "Pursuant to a legislative requirement, GAO reviewed whether the net excise tax revenue distributed to the Black Lung Disability Trust Fund (BLDTF) for the fiscal year (FY) ended September 30, 1998, is supported by the underlying records."
Date: February 25, 1999
Creator: United States. General Accounting Office.
Object Type: Text
System: The UNT Digital Library
Agreed-Upon Procedures: Federal Unemployment Taxes (open access)

Agreed-Upon Procedures: Federal Unemployment Taxes

Correspondence issued by the General Accounting Office with an abstract that begins "Pursuant to a legislative requirement, GAO reviewed whether the net federal unemployment taxes (FUTA) collected by the Internal Revenue Service (IRS) for the fiscal year ended September 30, 1998, are supported by the underlying records."
Date: February 25, 1999
Creator: United States. General Accounting Office.
Object Type: Text
System: The UNT Digital Library
Drug Control: Customs Can Do More To Prevent Drug-Related Employee Corruption (open access)

Drug Control: Customs Can Do More To Prevent Drug-Related Employee Corruption

A statement of record issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO discussed the Customs Service's efforts to combat drug-related corruption, focusing on: (1) the extent to which Customs has complied with policies and procedures for ensuring employee integrity; (2) an identification of the types of illegal drug-related activities of which Customs employees on the Southwest Border have been convicted; (3) an identification of the Department of the Treasury's organizational structures, policies, and procedures for handling allegations of drug-related employee misconduct and whether the policies and procedures were followed; and (4) the extent to which lessons learned from corruption cases closed in fiscal years 1992 through 1997 have led to changes in policies and procedures for preventing the drug-related corruption of Customs employees."
Date: May 25, 1999
Creator: United States. General Accounting Office.
Object Type: Text
System: The UNT Digital Library
Combating Terrorism: Analysis of Federal Counterterrorist Exercises (open access)

Combating Terrorism: Analysis of Federal Counterterrorist Exercises

A briefing report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO provided information on its analysis of federal counterterrorist exercises."
Date: June 25, 1999
Creator: United States. General Accounting Office.
Object Type: Report
System: The UNT Digital Library
Federal Assistance: Information on Federal Funds to Suffolk County, New York (open access)

Federal Assistance: Information on Federal Funds to Suffolk County, New York

Correspondence issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO provided information on the level of federal assistance provided to Suffolk County, New York, as well as data on incomes and the distribution of population within the county."
Date: June 25, 1999
Creator: United States. General Accounting Office.
Object Type: Text
System: The UNT Digital Library
Legal Services Corporation: Substantial Problems in 1997 Case Reporting by Five Grantees (open access)

Legal Services Corporation: Substantial Problems in 1997 Case Reporting by Five Grantees

Correspondence issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO reviewed five of the Legal Services Corporation's (LSC) largest grantees, focusing on whether the grantee: (1) properly documented the client's eligibility; (2) provided legal services within the past year; and (3) reported duplicate cases."
Date: June 25, 1999
Creator: United States. General Accounting Office.
Object Type: Text
System: The UNT Digital Library
Air Traffic Control: Observations on FAA's Air Traffic Control Modernization Program (open access)

Air Traffic Control: Observations on FAA's Air Traffic Control Modernization Program

A statement of record issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO discussed the Federal Aviation Administration's (FAA) Air Traffic Control Modernization Program, focusing on: (1) the causes of the problems that have plagued FAA's modernization program for nearly two decades; (2) recent agency efforts to overcome these problems; and (3) the readiness of FAA and others to meet year 2000 requirements."
Date: March 25, 1999
Creator: United States. General Accounting Office.
Object Type: Text
System: The UNT Digital Library
Superfund: Progress and Challenges (open access)

Superfund: Progress and Challenges

A statement of record issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO discussed the Superfund hazardous waste cleanup program, focusing on: (1) the progress, cleanup pace, and accomplishments of the program; (2) trends in the amount of funds that the Environmental Protection Agency (EPA) spends on administrative and support activities in the program and the amount of these costs that it recovers from parties contributing to contamination at Superfund sites; (3) the number and types of waste sites that may be cleaned up by the program in the future; and (4) barriers to the redevelopment of brownfields--abandoned and idled industrial properties, often located in economically distressed urban areas--and federal efforts to remove these barriers."
Date: May 25, 1999
Creator: United States. General Accounting Office.
Object Type: Text
System: The UNT Digital Library
Agreed-Upon Procedures: Highway Trust Fund Excise Taxes (open access)

Agreed-Upon Procedures: Highway Trust Fund Excise Taxes

Correspondence issued by the General Accounting Office with an abstract that begins "Pursuant to a legislative requirement, GAO reviewed whether the net excise tax revenue distributed to the Highway Trust Fund (HTF) for the fiscal year (FY) ended September 30, 1998, is supported by the underlying records."
Date: February 25, 1999
Creator: United States. General Accounting Office.
Object Type: Text
System: The UNT Digital Library
Department of Education: Assistance to States for the Education of Children with Disabilities and the Early Intervention Program for Infants and Toddlers with Disabilities (open access)

Department of Education: Assistance to States for the Education of Children with Disabilities and the Early Intervention Program for Infants and Toddlers with Disabilities

Other written product issued by the General Accounting Office with an abstract that begins "Pursuant to a legislative requirement, GAO reviewed the Department of Education's new rule on providing assistance to states for the education of children with disabilities and the early intervention program for infants and toddlers with disabilities. GAO noted that: (1) the final rule would implement changes made to the Individuals with Disabilities Education Act (Part B) and the Early Intervention Program for Infants and Toddlers with Disabilities (Part C of the act) by the 1997 amendments to the act; (2) the rule would revise the requirements on state complaint procedures under the Parts B and C programs; and (3) Education complied with applicable requirements in promulgating the rule."
Date: March 25, 1999
Creator: United States. General Accounting Office.
Object Type: Text
System: The UNT Digital Library