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Activities and Operations of the Advanced Computing Research Facility : January 1989-January 1990

Description: This report reviews the activities and operations of the Advanced Computing Research Facility (ACRF) for the period January 1, 1989, through January 31, 1990. The ACRF is operated by the Mathematics and Computer Science Division at Argonne National Laboratory. The facility's principal objective is to foster research in parallel computing. Toward this objective, the ACRF continues to operate experimental advanced computers and to sponsor new technology transfer efforts and new research projects.
Date: February 1990
Creator: Pieper, Gail W.
open access

Chaotic Vibrations of Nonlinearly Supported Tubes in Crossflow

Description: By means of the unsteady-flow theory and a bilinear mathematical model, a theoretical study is presented for chaotic vibrations associated with the fluid-elastic instability of nonlinearly supported tubes in a crossflow. Effective tools, including phase portraits, power spectral density, Poincare maps, Lyapunov exponent, fractal dimension, and bifurcation diagrams, are utilized to distinguish periodic and chaotic motions when the tubes vibrate in the instability region. The results show periodi… more
Date: February 1992
Creator: Cai, Y. & Chen, Shoei-Sheng
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COMMIX-PPC: A Three-Dimensional Transient Multicomponent Computer Program for Analyzing Performance of Power Plant Condensers, Volume 1: Equations and Numerics

Description: Report on the COMMIX-PPC computer program, designed to evaluate the thermal performance of power plant condensers. This first volume "describes in detail the basic equations, formulation, solution procedures, and models for auxiliary phenomena" (p. iv).
Date: February 1993
Creator: Chien, T. H.; Domanus, H. M. & Sha, William T.
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The Hawaiian Monk Seal, Monachus schauinslandi, at Kure Atoll, 1982-83

Description: This report describes an observational research on the population of the Hawaiian monk seal at Kure Atoll taken from the March to October of 1982 to the April to June of 1983. The study focuses on deaths, injuries, reproduction rates, and data gathered during seal captivity.
Date: February 1991
Creator: Bowlby, C. Edward; Scoggins, Penelope D.; Watson, Rodney T. & Reddy, Michelle L.
open access

The Hawaiian Monk Seal on Laysan Island, 1991

Description: This report presents the findings of an observational study on the Hawaiian monk seal on Laysan Island in the Northwestern Hawaiian Islands during March 31 to July 22 1991. The data collected focuses on haul-out, behavior, and reproductive patterns; population structure; and factors affecting survival.
Date: February 1995
Creator: Becker, Brenda L.; O'Brien, Kristen E.; Lombard, Karen B. & Laniawae, Leona P.

[MACCS Output Listings]

Description: Data listing for three sample problems are provided to illustrate the use of MACCS (MELCOR [We84] Accident Consequence Code System developed by Sandia National Laboratories) referred to in the accompanying report as Problems A, B, and C.
Date: February 1990
Creator: Sandia National Laboratories
open access

Materials Performance in the Atmospheric Fluidized-Bed Cogeneration Air Heater Experiment

Description: The Atmospheric Fluidized-Bed Cogeneration Air Heater Experiment (ACAHE) sponsored by the US Department of Energy (DOE) was initiated to assess the performance of various heat-exchanger materials to be used in fluidized-bed combustion air heater systems. Westinghouse Electric Corporation, through subcontracts with Babcock Wilcox, Foster Wheeler, and ABB Combustion Engineering Systems, prepared specifications and hardware for the ACAHE tests. Argonne National Laboratory contracted with Rockwell … more
Date: February 1991
Creator: Natesan, K.
open access

OTTER Experiments Pertinent to CADE-10

Description: This Argonne report serves as a companion to our CADE-10 paper. To fulfill promises made in that paper, included here are detailed proofs in clause notation, input files compatible with OTTER, and explanations for the choice of approach. Also included are certain of the original and unpublished proofs (of Winker) that answered four open questions, two in equivalent calculus and two in the R-calculus. The organization parallels that of the CADE-10 paper.
Date: February 1991
Creator: Wos, Larry; Winker, S.; McCune, W.; Overbeek, R.; Lusk, E.; Stevens, R. et al.
open access

Seasonal, Vertical, and Horizontal Distribution of Four Species of Copepods Around Oahu Hawaii: Data Report

Description: From introduction: This data report is intended to provide a detailed data summary of station information and copepod abundances that will be used for future publication of the analyzed data set. A data report on larval fish distributions from the same seasonal cruises will also be issued, and the distribution of tuna larvae has been discussed.
Date: February 1995
Creator: Hassett, R. Patrick & Boehlert, George W.
open access

Simplified Linear Equation Solvers : Users Manual

Description: The solution of large sparse systems of linear equations is at the heart of many algorithms in scientific computing. The SLES package is a set of easy-to-use yet powerful and extensible routines for solving large sparse linear systems. The design of the package allows new techniques to be used in existing applications without any source code changes in the applications.
Date: February 1993
Creator: Gropp, William & Smith, Barry
open access

Solidification Modeling of a Spiral Casting to Determine Material Fluidity

Description: In casting, fluidity is the measure of the distance a metal can flow in a channel before being stopped by solidification. During mold filling, the metal loses heat to the surrounding mold, thereby cooling and becoming more viscous until the leading portion solidifies and no further flow is possible. A coupled heat-transfer and fluid-flow modeling of a spiral, involving the use of thermophysical properties to determine material fluidity, has been conducted. Simulations of these experiments utili… more
Date: February 1994
Creator: Ahuja, S.; Domanus, H. M.; Schmitt, R. C.; Chuzhoy, L. & Grabel, J. V.
open access

Studies of Acute and Chronic Radiation Injury at the Biological and Medical Research Division, Argonne National Laboratory, 1970-1992 : the JANUS Program Survival and Pathology Data

Description: A research reactor for exclusive use in experimental radiobiology was designed and built at Argonne National Laboratory in the 1960`s. It was located in a special addition to Building 202, which housed the Division of Biological and Medical Research. Its location assured easy access for all users to the animal facilities, and it was also near the existing gamma-irradiation facilities. The water-cooled, heterogeneous 200-kW(th) reactor, named JANUS, became the focal point for a range of radiobio… more
Date: February 1995
Creator: Grahn, D.; Wright, B. J.; Carnes, B. A.; Williamson, F. S. & Fox, C.
open access

Temperature Effects on Waste Glass Performance

Description: The temperature dependence of glass durability, particularly that of nuclear waste glasses, is assessed by reviewing past studies. The reaction mechanism for glass dissolution in water is complex and involves multiple simultaneous reaction proceeded, including molecular water diffusion, ion exchange, surface reaction, and precipitation. These processes can change in relative importance or dominance with time or changes in temperature. The temperature dependence of each reaction process has been… more
Date: February 1991
Creator: Mazer, J. J.
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Yucca Mountain Project - Argonne National Laboratory Annual Progress Report, FY 1994

Description: This document reports on the work done by the Nuclear Waste Management Section of the Chemical Technology Division (CMT), Argonne National Laboratory, in the period October 1993-September 1994. Studies have been performed to evaluate the performance of nuclear waste glass and spent fuel samples under unsaturated conditions (low volume water contact) that are likely to exist in the Yucca Mountain environment being considered as a potential site for a high-level waste repository. Tests with simul… more
Date: February 1995
Creator: Bates, John K.
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