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Duals for SU(N) SUSY Gauge Theories with an Antisymmetric Tensor: Five Easy Flavors

Description: I consider N = 1 supersymmetric SU(N{sub c}) gauge theories with matter fields consisting of one antisymmetric representation, five flavors, and enough antifundamental representations to cancel the gauge anomaly. Previous analyses are extended to the case of even N{sub c} with no superpotential. Using holomorphy I show that the theory has an interacting infrared fixed point for sufficiently large N{sub c}. These theories are interesting due to the fact that in going from five to four flavors th… more
Date: December 16, 1997
Creator: Terning, John
Partner: UNT Libraries Government Documents Department
open access

The characterization and testing of candidate immobilization forms for the disposal of plutonium.

Description: Candidate immobilization forms for the disposal of surplus weapons-useable are being tested and characterized. The goal of the testing program was to provide sufficient data that, by August 1997, an informed selection of a single immobilization form could be made so that the form development and production R and D could be more narrowly focused. Two forms have been under consideration for the past two years: glass and ceramic. In August, 1997, the Department of Energy (DOE) selected ceramic for… more
Date: December 16, 1997
Creator: Bakel, A. J.; Buck, E. C.; Chamberlain, D. B.; Ebbinghaus, B. B.; Fortner, J. A.; Marra, J. C. et al.
Partner: UNT Libraries Government Documents Department
open access

Nonlinear Rayleigh-Taylor Instability Experiments in Nova

Description: We examined the progression of the Rayleigh-Taylor (RT) instability from an initial multimode perturbation. The RT experiments focused on the transition from the linear to non-linear regimes for perturbation growth at an embedded, or classical, interface. The multimode experiments have attempted to observe the process of bubble competition wherein neighboring structures either continue to rise or are washed downstream in the flow depending upon; their relative size. This competition is predicte… more
Date: June 16, 1997
Creator: Budil, K. S.; Remington, B. A.; Weber, S. V.; Perry, T. S. & Peyser, T. A.
Partner: UNT Libraries Government Documents Department
open access

Disposition of uranium-233

Description: The US is developing a strategy for the disposition of surplus weapons-usable uranium-233 ({sup 233}U). The strategy (1) identifies the requirements for the disposition of surplus {sup 233}U; (2) identifies potential disposition options, including key issues to be resolved with each option; and (3) defines a road map that identifies future key decisions and actions. The disposition of weapons-usable fissile materials is part of a US international arms-control program for reduction of the number… more
Date: October 16, 1997
Creator: Tousley, D.R.; Forsberg, C.W. & Krichinsky, A.M.
Partner: UNT Libraries Government Documents Department
open access

New prototype equation of state data library

Description: Equation of State (EOS) data is a necessary requirement for the simulation of many dynamic processes, including shock wave propagation, high velocity impact, laser-matter interaction, laser medicine, x-ray deposition and planetary and stellar interior evolution. Realistic simulations require high accuracy and smoothness in the EOS. In addition, some processes require independent ionic, electronic and radiation physics. In order to meet these needs, we have implemented a new EOS data library tha… more
Date: July 16, 1997
Creator: Corey, E. M. & Young, D. A.
Partner: UNT Libraries Government Documents Department
open access

Critical parameters for electron beam curing of cationic epoxies and property comparison of electron beam cured cationic epoxies versus thermal cured resins and composites

Description: Electron beam curing of composites is a nonthermal, nonautoclave curing process offering the following advantages compared to conventional thermal curing: substantially reduced manufacturing costs and curing times; improvements in part quality and performance; reduced environmental and health concerns; and improvements in material handling. In 1994 a Cooperative Research and Development Agreement (CRADA), sponsored by the Department of Energy Defense Programs and 10 industrial partners, was est… more
Date: January 16, 1997
Creator: Janke, C. J.; Norris, R. E.; Yarborough, K.; Havens, S. J. & Lopata, V. J.
Partner: UNT Libraries Government Documents Department
open access

Data warehousing, metadata, and the World Wide Web

Description: The connection between data warehousing and the metadata. used to catalog and locate warehouse data is obvious, but what is the connection between data warehousing, metadata, and the World Wide Web (WWW)? Specifically, the WWW can be used to allow users to search metadata (data about the data) and retrieve data from a warehouse database. In addition, the Internet/Intranet can be used to manage the metadata in archive databases and to streamline the database administration functions of a large a… more
Date: April 16, 1997
Creator: Yow, T.G.; Smith, A.W. & Daugherty, P.F.
Partner: UNT Libraries Government Documents Department
open access

Improving spanning trees by upgrading nodes

Description: We study budget constrained optimal network upgrading problems. Such problems aim at finding optimal strategies for improving a network under some cost measure subject to certain budget constraints. A general problem in this setting is the following. We are given an edge weighted graph G = (V, E) where nodes represent processors and edges represent bidirectional communication links. The processor at a node v {element_of} V can be upgraded at a cost of c(v). Such an upgrade reduces the delay of … more
Date: January 16, 1997
Creator: Krumke, S. O.; Noltemeier, H. & Wirth, H. C.
Partner: UNT Libraries Government Documents Department
open access

Measurement of RT amplitudes and wavelengths of laser driven plates

Description: A laser drive plate, that is a dense solid plate drive by a laser heated, lower density plasma, is inherently Raleigh-Taylor (R-T) unstable, We have previously indicated that observed surface perturbation on the plate are probably R-T instabilities, initiated by the mode structure of the driving laser beam. Using a semi- transparent impact target viewed with a polarized Epi-Illuminated Confocal Streak Microscope, has allowed us to measure the amplitude and growth of the instability.
Date: October 16, 1997
Creator: Frank, A.M. & Gillespie, C.H.
Partner: UNT Libraries Government Documents Department
open access

Analysis, design, and implementation of PHENIX on-line computing systems software using Shlaer-Mellor object-oriented analysis and recursive design

Description: An early prototype of the core software for on-line computing systems for the PHENIX detector at RHIC has been developed using the Shlaer-Mellor OOA/RD method, including the automatic generation of C++ source code using a commercial translation engine and {open_quotes}architecture{close_quotes}.
Date: February 16, 1997
Creator: Kozlowski, T.; Desmond, E. & Haggerty, J.
Partner: UNT Libraries Government Documents Department
open access

Emerging patterns in cross-sector partnerships national lab partnerships: what works and what doesn`t

Description: All elements of the research triad in this country - universities, federal laboratories, and industrial labs - have spent a good part of the last decade in a very changeable and changing environment. In the area of partnerships with industry there have been a lot of experiments, such as the Advanced Technology Program (ATP), the Technology Reinvestment Program (TRP), and the Department of Energy`s (DOE) analog, the Technology Transfer Initiative (TM). We now have, at least in principle, gained … more
Date: June 16, 1997
Creator: Tarter, C.B.
Partner: UNT Libraries Government Documents Department
open access

Jet fragmentation properties at the Tevatron

Description: Preliminary CDF results on inclusive momentum distributions of charged particles in high transverse momentum jets produced in {anti p}p collisions at {radical}s=1.8 TeV at the Tevatron are presented and compared with QCD predictions based on the Modified Leading Log Approximation.
Date: May 16, 1997
Creator: Goulianos, K.
Partner: UNT Libraries Government Documents Department
open access

Diamond radiation detectors I. Detector properties for IIa diamond

Description: The detector properties and carrier dynamics of type IIa diamonds are reasonably well understood. The trends in the electron and hole mobilities have been characterized as a function of temperature, impurity content, electric field and carrier density. The carrier lifetimes are coupled through the nitrogen impurity. This leaves us with typical samples with collection distances of 20 to 50 micrometers. The detailed dynamics of the carriers can be modeled using a rate equation analysis. Much prog… more
Date: May 16, 1997
Creator: Kania, D. R.
Partner: UNT Libraries Government Documents Department
open access

Systematic approach to analyzing and reducing aerodynamic drag of heavy vehicles

Description: This paper presents an approach for reducing aerodynamic drag of heavy vehicles by systematically analyzing trailer components using existing computational tools and moving on to the analyses of integrated tractor-trailers using advanced computational tools. Experimental verification and validation are also an important part of this approach. The project is currently in the development phase while we are in the process of constructing a Multi-Year Program Plan. Projects I and 2 as described in … more
Date: September 16, 1997
Creator: McCallen, R.; Browand, F.; Leonard, A. & Rutledge, W.
Partner: UNT Libraries Government Documents Department
open access

Processing of Oak Ridge B&C pond sludge surrogate in the transportable vitrification system

Description: The Transportable Vitrification System (TVS) developed at the Savannah River Site is designed to process low-level and mixed radioactive wastes into a stable glass product. The TVS consists of a feed preparation and delivery system, a joule-heated melter, and an offgas treatment system. Surrogate Oak Ridge Reservation (ORR) B&C pond sludge was treated in a demonstration of the TVS system at Clemson University and at ORR. After initial tests with soda-lime-silica (SLS) feed, three melter vol… more
Date: April 16, 1997
Creator: Zamecnik, J. R.; Young, S. R.; Peeler, D. K. & Smith, M. E.
Partner: UNT Libraries Government Documents Department
open access

Requalification of the 235-F Metallograph Facility gloveboxes for use in the 773-A Pre-Processing/Re-Processing Laboratory and plutonium ``Can in Can`` demonstrations

Description: The proposed use for these gloveboxes are: (1) to utilize the Pu metal glovebox system for the primary containment associated with the Pre-Processing/Re-Processing Laboratory for obtaining radioactive glass compound viscometer analysis, and (2) to utilize the Pu oxide glovebox system for primary containment associated with the Pu Can in Can Demonstration for proof of principle testing specific to long term Pu immobilization and storage technology. This report presents objective evidence that su… more
Date: April 16, 1997
Creator: Hinds, S. & Hidlay, J.
Partner: UNT Libraries Government Documents Department
open access

Diamond radiation detectors II. CVD diamond development for radiation detectors

Description: Interest in radiation detectors has supplied some of the impetus for improving the electronic properties of CVD diamond. In the present discussion, we will restrict our attention to polycrystalhne CVD material. We will focus on the evolution of these materials over the past decade and the correlation of detector performance with other properties of the material.
Date: May 16, 1997
Creator: Kania, D.R.
Partner: UNT Libraries Government Documents Department
open access

A modeling study of perched water phenomena in the vadose zone

Description: The presence of perched water bodies in the vicinity of the potential repository at Yucca Mountain has many implications, and however, it may provide insight into moisture movement, flow pathways, or surface infiltration history of the mountain. The first implication is that percolation flux does not travel vertically through the unsaturated zone to the water table, but has been trapped, blocked or diverted laterally. As a result, non-uniform recharge rates are expected at the water table. Anot… more
Date: December 16, 1997
Creator: Wu, Y.-S.; Ritchey, A. C. & Bodvarsson, G. S.
Partner: UNT Libraries Government Documents Department
open access

Requalification of the 235-F Metallograph Facility gloveboxes for use in the 773-A plutonium immobilization demonstration

Description: A concern has been identified regarding the viability of redesigning and requalifying existing glovebox lines for use as glovebox lines integral to future mission activities in the 773-A laboratory building at the Savannah River Site (SRS). The Bechtel Savannah River Inc. (BSRI) design engineering team has been requested to perform an evaluation which would investigate the reuse of these existing gloveboxes versus the procurement of completely new glovebox systems. The existing glovebox lines w… more
Date: October 16, 1997
Creator: Hinds, S.S & Hidlay, J.
Partner: UNT Libraries Government Documents Department
open access

Phototransformation of Polycyclic Aromatic Hydrocarbons (PAHs) on a Non-Semi Conductive Surface Such as Silica

Description: Polycyclic aromatic hydrocarbons (PAH), by products of fossil fuel production and consumption, constitute a large class of environmental pollutants. These toxic and sometimes carcinogenic compounds are also found in coal tar and fly ash. When released into the air, they can be sorbed onto particulates present in the atmosphere where they find their way into soil and ground water upon being washed by rain. During their residence time in the environment, PAHs will be exposed to solar radiation an… more
Date: September 16, 1997
Creator: Dabestani, R., Sigman, M.E.
Partner: UNT Libraries Government Documents Department
open access

Peregrine monte carlo dose calculations for radiotherapy using clinically realistic neutron and proton beams

Description: Lawrence Livermore National Laboratory (LLNL) has developed an all-particle Monte Carlo radiotherapy dose calculation code--PEREGRINE--for use in clinical radiation oncology. For PEREGRINE, we have assembled high-energy evaluated nuclear databases; created radiation source characterization and sampling algorithms; and simulated and characterized clinical beams for treatment with photons, neutrons and protons. Spectra are available for the Harper Hospital (Detroit, U.S.A.) Be(d,n) neutron therap… more
Date: June 16, 1997
Creator: Cox, L. J., LLNL
Partner: UNT Libraries Government Documents Department
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