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Verification survey of the hot cell facility site, General Atomics, San Diego, California

Description: From 1958, General Atomics maintain a hot cell facility in support of government-funded research into reactor fuels. As the use of the facility declined, General Atomics entered into an agreement with DOE to dismantle the facility and decontaminate and decommission (D&D) the site so that it could made available for unrestricted use. The Environmental Survey and Site Assessment Program (ESSAP) was requested to verify the final radiological status of the D&D effort. This is the report of … more
Date: June 30, 2000
Creator: Adams, W. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Analysis, tuning and comparison of two general sparse solvers for distributed memory computers

Description: We describe the work performed in the context of a Franco-Berkeley funded project between NERSC-LBNL located in Berkeley (USA) and CERFACS-ENSEEIHT located in Toulouse (France). We discuss both the tuning and performance analysis of two distributed memory sparse solvers (superlu from Berkeley and mumps from Toulouse) on the 512 processor Cray T3E from NERSC (Lawrence Berkeley National Laboratory). This project gave us the opportunity to improve the algorithms and add new features to the codes. … more
Date: June 30, 2000
Creator: Amestoy, P. R.; Duff, I. S.; L'Excellent, J. Y. & Li, X. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Savannah River Site Environmental Report for 1999

Description: The purpose of this report is to present summary environmental data that characterize site environmental management performance, confirm compliance with environmental standards and requirements, highlight significant programs and efforts, and assess the impact of SRS operations on the public and the environment.
Date: June 30, 2000
Creator: Arnett, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Case for a 500 GEV E+E - Linear Collider

Description: There are now several proposals that have been put forward from around the world for an e{sup +}e{sup {minus}} linear collider with an initial center of mass energy of 500 GeV. In this paper, the authors discuss why a project of this type deserves priority as the next, major initiative in high energy physics.
Date: June 30, 2000
Creator: Bagger, J.; Baltay, C.; AL, ET; Marciano, W.; Paige, F.; Turcot, A. S. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Evaluating intensified camera systems

Description: This paper describes image evaluation techniques used to standardize camera system characterizations. The authors group is involved with building and fielding several types of camera systems. Camera types include gated intensified cameras, multi-frame cameras, and streak cameras. Applications range from X-ray radiography to visible and infrared imaging. Key areas of performance include sensitivity, noise, and resolution. This team has developed an analysis tool, in the form of image processing … more
Date: June 30, 2000
Creator: Baker, S. A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

DART's (Dallas Area Rapid Transit) LNG Bus Fleet Start-Up Experience (Alternative Fuel Transit Buses Brochure)

Description: This report, based on interviews and site visits conducted in October 1999, describes the start-up activities of the DART liquefied natural gas program, identifying problem areas, highlighting successes, and capturing the lessons learned in DART's ongoing efforts to remain at the forefront of the transit industry.
Date: June 30, 2000
Creator: Battelle
Item Type: Refine your search to only Book
Partner: UNT Libraries Government Documents Department
open access

Implications of the PSR instability for the SNS

Description: The Los Alamos Proton Storage Ring suffers from a violent, high frequency, transverse instability at high beam current. The Spallation Neutron Source will be similar to the PSR and one must insure that the PSR instability will not keep SNS from reaching its design goal. Efforts toward understanding the instability are described.
Date: June 30, 2000
Creator: Blaskiewicz, M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Ring RF and longitudinal dynamics in the SNS

Description: Average beam currents of 40 A will be present in the Spallation Neutron Source. Even though the entire cycle time is only one synchrotron oscillation the longitudinal phase space determines peak beam current and momentum spread. Both factors play a role in space charge and instability dynamics. Longitudinal simulations with beam loading and longitudinal space charge have been done in the design phase.
Date: June 30, 2000
Creator: Blaskiewicz, M.; Brennan, J. M.; Brodowski, J.; Delong, J.; Meth, M.; Onillon, E. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

U1h shaft project

Description: The U1h shaft project is a design/build subcontract to construct one 20 foot (ft) finished diameter shaft to a depth of 1,045 ft at the Nevada Test Site. Atkinson Construction was subcontracted by Bechtel Nevada to construct the U1h Shaft for the Department of Energy. The project consists of furnishing and installing the sinking plant, construction of the 1,045 ft of concrete lined shaft, development of a shaft station at a depth of 976 ft, and construction of a loading pocket at the station. T… more
Date: June 30, 2000
Creator: Briggs, Brian & Musick, R. G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Utility DSM Rebates for electronic ballasts: National estimates and assessment of market impact (1992 - 1997)

Description: In this report we present national estimates of utility Demand-Side Management (DSM) rebates for electronic fluorescent lamp ballasts during the period of 1992 - 1997. We then compare these trends with developments in the fluorescent ballast market from 1993 - 1998. The analysis indicates that DSM rebates for electronic ballasts peaked in the mid-1990s and declined sharply in 1996 and 1997. In a parallel trend, electronic ballast sales and market share both increased significantly during 1993 -… more
Date: June 30, 2000
Creator: Busch, C. B.; Atkinson, B. A.; Eto, J. H.; Turiel, I. & McMahon, J. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A linear mixture analysis-based compression for hyperspectral image analysis

Description: In this paper, the authors present a fully constrained least squares linear spectral mixture analysis-based compression technique for hyperspectral image analysis, particularly, target detection and classification. Unlike most compression techniques that directly deal with image gray levels, the proposed compression approach generates the abundance fractional images of potential targets present in an image scene and then encodes these fractional images so as to achieve data compression. Since t… more
Date: June 30, 2000
Creator: Chang, C. I. & Ginsberg, I. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Unsupervised hyperspectral image analysis using independent component analysis (ICA)

Description: In this paper, an ICA-based approach is proposed for hyperspectral image analysis. It can be viewed as a random version of the commonly used linear spectral mixture analysis, in which the abundance fractions in a linear mixture model are considered to be unknown independent signal sources. It does not require the full rank of the separating matrix or orthogonality as most ICA methods do. More importantly, the learning algorithm is designed based on the independency of the material abundance vec… more
Date: June 30, 2000
Creator: Chiang, S. S. & Ginsberg, I. W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

FACET: an object-oriented software framework for modeling complex social behavior patterns

Description: The Framework for Addressing Cooperative Extended Transactions (FACET) is a flexible, object-oriented architecture for implementing models of dynamic behavior of multiple individuals, or agents, in a simulation. These agents can be human (individuals or organizations) or animal and may exhibit any type of organized social behavior that can be logically articulated. FACET was developed by Argonne National Laboratory's (ANL) Decision and Information Sciences Division (DIS) out of the need to inte… more
Date: June 30, 2000
Creator: Dolph, J. E.; Christiansen, J. H. & Sydelko, P. J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Fault current limiter-predominantly resistive behavior of a BSCCO shielded-core reactor

Description: Tests were conducted to determine the electrical and magnetic characteristics of a superconductor shielded core reactor (SSCR). The results show that a closed-core SSCR is predominantly a resistive device and an open-core SSCR is a hybrid resistive/inductive device. The open-core SSCR appears to dissipate less than the closed-core SSCR. However, the impedance of the open-core SSCR is less than that of the closed-core SSCR. Magnetic and thermal diffusion are believed to be the mechanism that fac… more
Date: June 30, 2000
Creator: Ennis, M. G.; Tobin, T. J.; Cha, Y. S. & Hull, J. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Halo and space charge issues in the SNS Ring

Description: The latest designs for high-intensity proton rings require minimizing beam-induced radioactivation of the vacuum chamber. Although the tune depression in the ring is much smaller than in high-intensity linacs, space-charge contributions to halo formation and, hence, beam loss may be significant. This paper reviews our current understanding of halo formation issues for the Spallation Neutron Source (SNS) accumulator ring.
Date: June 30, 2000
Creator: Fedotov, A. V.; Abell, D. T.; Beebe-Wang, J.; Lee, Y. Y.; Malitsky, N.; Wei, J. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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