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Research on elementary particle physics: Task P, Studies in theory and phenomenology of elementary particles

Description: Over the last year, work has focused on two areas: the phenomenology of quark-gluon differentiation in jets, and theoretical studies involving Dirac-like equations for various systems. Substantive progress has been made in both areas. A paper comparing details of the Lund and Herwig simulations for quark and gluon jets has been written and accepted by Physical Review D. A paper describing a new type of Dirac equation for the relativistic harmonic oscillator, and finding solutions thereof, has b… more
Date: May 1, 1992
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Data telecommunications at the CSCF

Description: At Brookhaven National Laboratory data telecommunication for remote job entry, interactive time sharing, networking, graphics, and special purpose links became increasingly important--they now rival the more traditional over-the-counter traffic. The BNL Central Scientific Computing Facility (CSCF) responded to this need with a number of developments. The latest and most comprehensive of these is a ''front-end'' communications system built around MODCOMP II computers. To put this project into it… more
Date: October 1, 1977
Creator: Peskin, A. M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Migration to a distributed system architecture at the National Test Bed

Description: This is a study to consider the mission of the Strategic Defense Initiative Organization's National Test Bed (NTB) and the current directions of gigabit networking and distributed computing research and to produce a report describing a 5- to 10-year vision of an NTB computing architecture and migration path to that architecture. 97 refs., 20 figs.
Date: September 1, 1991
Creator: Hoebelheinrich, R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A guide to writing procurement specifications for new and existing CHAWS sites

Description: Turn-key Chemical Hazard Warning Systems (CHAWS) have been designed by the Lawrence Livermore National Laboratory (LLNL) and installed at a number of US Army sites. This document is intended to be used as a guide by those charged with writing procurement specification for both new and existing CHAWS sites. It discusses issues of system design and the functional requirements for both hardware and software. Suggestions are made for those interested in updating the computer platform and/or operati… more
Date: September 1, 1991
Creator: Martins, S.A. & Fry, C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Tutorial on neural network applications in high energy physics: A 1992 perspective

Description: Feed forward and recurrent neural networks are introduced and related to standard data analysis tools. Tips are given on applications of neural nets to various areas of high energy physics. A review of applications within high energy physics and a summary of neural net hardware status are given.
Date: April 1, 1992
Creator: Denby, B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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NFS as a user interface to a high-performance data system

Description: The Network File System (NFS) will be the user interface to a High-Performance Data System (HPDS) being developed at Los Alamos National Laboratory (LANL). HPDS will manage high-capacity, high-performance storage systems connected directly to a high-speed network from distributed workstations. NFS will be modified to maximize performance and to manage massive amounts of data. 6 refs., 3 figs.
Date: January 1, 1991
Creator: Mercier, C.W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Considerations for imaging system implementation in a networked environment

Description: Information storage and retrieval systems that utilize raster images are increasing in popularity on a wide variety of platforms. Image systems typically involve the transmission of data files in the 100 KiloByte to 1 MegaByte range to users on specialized workstations who expect retrieval in a matter of seconds. The results of the pilot study outlines the potential for the sharing of image information among various platforms and systems, and sets expectations regarding the level of integration. more
Date: January 1, 1991
Creator: Hudson, B.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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The Scalable Coherent Interface and related standards projects

Description: The Scalable Coherent Interface (SCI) project (IEEE P1596) found a way to avoid the limits that are inherent in bus technology. SCI provides bus-like services by transmitting packets on a collection of point-to-point unidirectional links. The SCI protocols support cache coherence in a distributed-shared-memory multiprocessor model, message passing, I/O, and local-area-network-like communication over fiber optic or wire links. VLSI circuits that operate parallel links at 1000 MByte/s and serial … more
Date: September 1, 1991
Creator: Gustavson, D.B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Overview of the DOE Waste Facilities Operations Robotics Technology Development Program

Description: The Department of Energy's Office of Technology Development has initiated a Robotics Technology Development Program that includes technology aimed at DOE Waste Facilities Operations (WFO). Much of this technology may also be applicable to waste facilities outside of DOE and will be available for use. This is a team effort of several DOE Laboratories and Sites. The WFO team includes the Savannah River Technology Center, Sandia National Laboratories, Oak Ridge National Laboratory, Idaho National … more
Date: January 1, 1992
Creator: Ward, C. R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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The Soviet applied information sciences in a time of change

Description: The Foreign Applied Sciences Assessment Center (FASAC) conducts reviews of selected areas of foreign basic and applied science by US scientists who are technically expert and active in the fields reviewed. Several of the FASAC assessments of Soviet science have involved various aspects of the information sciences, including enabling technologies and applications, as well as the core information sciences. This report draws upon those FASAC assessment reports, the expert judgment of some of the a… more
Date: July 1, 1991
Creator: Bengston, J.; Cronin, R. R. & Davidson, R. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Tracking and vertex finding with drift chambers and neural networks

Description: Finding tracks, track vertices and event vertices with neural networks from drift chamber signals is discussed. Simulated feed-forward neural networks have been trained with back-propagation to give track parameters using Monte Carlo simulated tracks in one case and actual experimental data in another. Effects on network performance of limited weight resolution, noise and drift chamber resolution are given. Possible implementations in hardware are discussed. 7 refs., 10 figs.
Date: September 1, 1991
Creator: Lindsey, C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Human factors design review guidelines for advanced nuclear control room technologies

Description: Advanced control rooms (ACRs) for future nuclear power plants are being designed utilizing computer-based technologies. The US Nuclear Regulatory Commission reviews the human engineering aspects of such control rooms to ensure that they are designed to good human factors engineering principles and that operator performance and reliability are appropriately supported in order to protect public health and safety. This paper describes the rationale, general approach, and initial development of an … more
Date: January 1, 1991
Creator: O'Hara, J.; Brown, W. (Brookhaven National Lab., Upton, NY (United States)); Granda, T. & Baker, C. (Carlow Associates, Inc., Fairfax, VA (United States))
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Assessment study of superconducting fault-current limiters operating at 77K

Description: The possible impact of nitrogen-cooled superconductors on the design and cost of superconducting fault-current limiters is assessed by considering the technical specifications such devices must meet and by comparing material properties of 77-K and 4-K superconductors. The main advantage of operating superconductors at 77 K is that the refrigeration operating cost is reduced by a factor of up to 25, and the refrigeration capital cost is reduced by a factor of up to 10. The heat capacity of 77 K … more
Date: January 1, 1992
Creator: Giese, R. F. & Runde, M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Offline Computing and Networking

Description: This note summarizes the work of the Offline Computing and Networking Group. The report is divided into two sections; the first deals with the computing and networking requirements and the second with the proposed way to satisfy those requirements. In considering the requirements, we have considered two types of computing problems. The first is CPU-intensive activity such as production data analysis (reducing raw data to DST), production Monte Carlo, or engineering calculations. The second is p… more
Date: January 1, 1985
Creator: Appel, J. A.; Avery, P.; Chartrand, G.; Day, C. T.; Gaines, I.; Georgiopoulos, C. H. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Computer Facilities for Isabelle Data Handling

Description: The analysis of data produced by Isabelle experiments will need a large system of computers. Included in the array should be a substantial computer system at each Isabelle intersection in use. These systems must include enough computer power to keep experimenters aware of the status of the experiment. This will require at least one very fast sophisticated processor in the system, the size depending on the experiment. Other features of the intersection systems must be a good, high speed graphic … more
Date: January 1, 1977
Creator: Kramer, M. A.; Love, W. A.; Miller, R. J. & Zeller, M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Models of human operators: Their need and usefulness for improvement of advanced control systems and control rooms

Description: Models of human behavior and cognition (HB C) are necessary for understanding the total response of complex systems. Many such model have come available over the past thirty years for various applications. Many potential model users remain skeptical about their practically, acceptability, and usefulness. Such hesitancy stems in part from disbelief in the ability to model complex cognitive processes, and a belief that relevant human behavior can be adequately accounted for through the use of com… more
Date: January 1, 1991
Creator: Knee, H.E. & Schryver, J.C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Audit trails and PC control on Novell networks

Description: Although Novell Netware 286 provides excellent access control at both the server and the directory level, the record they make available through the accounting function leaves much to be desired. This paper presents two programs; the first is a BASIC program that converts the output of Novell's PAUDIT command into single line audit trails, providing an auditable record of server access. The second program, written in dBase III+, can be used to insure that all PC's accessing the LAN are recorded… more
Date: January 1, 1991
Creator: Cabot, A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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A Sandia telephone database system

Description: Sandia National Laboratories, Albuquerque, may soon have more responsibility for the operation of its own telephone system. The processes that constitute providing telephone service can all be improved through the use of a central data information system. We studied these processes, determined the requirements for a database system, then designed the first stages of a system that meets our needs for work order handling, trouble reporting, and ISDN hardware assignments. The design was based on a… more
Date: August 1, 1991
Creator: Nelson, S. D. & Tolendino, L. F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Los Alamos National Laboratory's high-performance data system

Description: Los Alamos National Laboratory is designing a High-Performance Data System (HPDS) that will provide storage for supercomputers requiring large files and fast transfer speeds. The HPDS will meet the performance requirements by managing data transfers from high-speed storage systems connected directly to a high-speed network. File and storage management software will be distributed in workstations. Network protocols will ensure reliable, wide-area network data delivery to support long-distance di… more
Date: January 1, 1991
Creator: Mercier, C.; Chorn, G.; Christman, R. & Collins, B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Experiences with distributing graphic software between processors

Description: Software to aid the distribution and coordination of tasks between different processors was developed to distribute applications written in Fortran. This development led to the discovery of problems unique to Fortran and to interesting practical solutions. Two graphical applications were distributed to a variety of machines and machine pairs: CDC 7600-LSI/11, Cray-LSI/11, VAX 11/780, and Apollo. These distributions pointed out several parameters such as the use of Fortran Common, communication … more
Date: January 1, 1982
Creator: Hamlin, G. & George, J.E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Current status of link access control and encryption system

Description: The purpose of this project is to develop necessary technologies for the secure protection of data communication networks. Data encryption equipment, using the federal government's Data Encryption Standard (DES) algorithm, was designed and developed. This equipment is the Link Access Control and Encryption (Link ACE) system. It protects unclassified sensitive data transmissions over unprotected lines between central computers and remote terminals. Link ACE units have been installed and are oper… more
Date: January 1, 1984
Creator: Springer, E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Magnetic-fusion energy and computers

Description: The application of computers to magnetic fusion energy research is essential. In the last several years the use of computers in the numerical modeling of fusion systems has increased substantially. There are several categories of computer models used to study the physics of magnetically confined plasmas. A comparable number of types of models for engineering studies are also in use. To meet the needs of the fusion program, the National Magnetic Fusion Energy Computer Center has been established… more
Date: January 1, 1982
Creator: Killeen, J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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A database of fragmentation cross section measurements applicable to cosmic ray propagation calculations

Description: A database of single particle inclusive fragment production cross section measurements has been established and is accessible over common computer networks. These measurements have been obtained from both published literature and direct communication with experimenters and include cross sections for nuclear beams on H, He, and heavier targets, and for H and He beams on nuclear targets, for energies >30 MeV/nucleon. These cross sections are directly applicable to calculations involving cosmic ra… more
Date: August 1, 1989
Creator: Crawford, H. J.; Engelage, J.; Jones, F. C.; Guzik, T. G.; Mitchell, J. W.; Wefel, J. P. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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