Search Results

Advanced search parameters have been applied.
open access

Solution of mathematical programming formulations of subgame perfect equilibrium problems

Description: Mathematical programming models have been developed to represent imperfectly competitive (oligopolistic) market structures and the interdependencies of decision-making units in establishing prices and production levels. The solution of these models represents an economic equilibrium. A subgame perfect equilibrium formulation explicitly considers that each agent`s strategies depend on the current state of the system; the state depends solely on previous decisions made by the economic agents. The… more
Date: February 12, 1992
Creator: Macal, C. M. & Hurter, A. P.
Partner: UNT Libraries Government Documents Department
open access

Analysis and computer tools for separation processes involving nonideal mixtures. Progress report, December 1, 1992--November 30, 1993

Description: This research is concerned with developing mathematical analysis, numerical analysis, and computer tools for separation processes involving nonideal, homogeneous, and heterogeneous multi-component mixtures. Progress, organized in terms of mathematical analysis, numerical analysis, and algorithmic development, is summarized.
Date: July 12, 1993
Creator: Lucia, A.
Partner: UNT Libraries Government Documents Department
open access

Development of an advanced atmospheric/transport model for emergency response purposes

Description: Atmospheric transport and diffusion models have been developed for real-time calculations of the location and concentration of toxic or radioactive materials during an accidental release at the Savannah River Site (SRS). These models are based Gaussian distributions and have been incorporated into an automated menu-driven program called the WIND (Weather INformation and Display) system. The WIND system atmospheric models employ certain assumptions that allow the computations of the ground-level… more
Date: July 12, 1991
Creator: Fast, J. D.; O`Steen, B. L. & Addis, R. P.
Partner: UNT Libraries Government Documents Department
open access

TMAP4 User`s Manual

Description: The Tritium Migration Analysis Program, Version 4 (TMAP4) has been developed by the Fusion Safety Program at the Idaho National Engineering Laboratory (INEL) as a safety analysis code, mainly to analyze tritium retention and loss in fusion reactor structures and systems during normal operation and accident conditions. TMAP4 incorporates one-dimensional thermal- and mass-diffusive transport and trapping calculations through structures and zero dimensional fluid transport between enclosures and a… more
Date: June 12, 1992
Creator: Longhurst, G. R.; Holland, D. F.; Jones, J. L. & Merrill, B. J.
Partner: UNT Libraries Government Documents Department
open access

Unix version of CALOR89 for calorimeter applications

Description: CALOR89 is a system of coupled Monte Carlo particle transport computer codes which has been successfully employed for the estimation of calorimeter parameters in High Energy Physics. In the past CALOR89 has been running on various IBM machines and on CRAY X-MP at Lawrence Livermore Lab. These machines had non-unix operating systems. In this report we present a UNIX version of CALOR89, which is especially suited for the UNIX work stations. Moreover CALOR89 is also been supplemented with two new … more
Date: May 12, 1992
Creator: Handler, T.; Job, P. K.; Price, L. E. & Gabriel, T. A.
Partner: UNT Libraries Government Documents Department
open access

MARKAL-MACRO: An overview

Description: MARKAL-MACRO is an experiment in model linkage. This new tool is intended as an improvement over existing methods for energy policy assessment. It is designed specifically for estimating the costs and analyzing alternative technologies and policies proposed for reducing environmental risks such as global climate change or regional air pollution. The greenhouse gas debate illustrates the usefulness of linked energy-economy models. A central issue is the coupling between economic growth, the leve… more
Date: November 12, 1992
Creator: Hamilton, L. D.; Goldstein, G. A.; Lee, J.; Marcuse, W.; Morris, S. C.; Manne, A. S. et al.
Partner: UNT Libraries Government Documents Department
open access

Guide to the CIAC-2300 series documents

Description: The Computer Incident Advisory Capability (CIAC) creates public information documents for the Dept. of Energy (DOE) related to computer security. These documents, known as the CIAC-2300 Series documents, are primarily concerned with information on security threats and methods for protecting systems from those threats. This document is a compilation of the abstracts of these documents.
Date: December 13, 1993
Creator: Orvis, William J.
Partner: UNT Libraries Government Documents Department
open access

Modeling node bandwidth limits and their effects on vector combining algorithms

Description: Each node in a message-passing multicomputer typically has several communication links. However, the maximum aggregate communication speed of a node is often less than the sum of its individual link speeds. Such computers are called node bandwidth limited (NBL). The NBL constraint is important when choosing algorithms because it can change the relative performance of different algorithms that accomplish the same task. This paper introduces a model of communication performance for NBL computers … more
Date: January 13, 1992
Creator: Littlefield, R. J.
Partner: UNT Libraries Government Documents Department
open access

Computation and graphics in mathematical research. Progress report, June 1, 1991--May 31, 1992

Description: This report discusses: The description of the GANG Project and results for prior research; the center for geometry, analysis, numerics and graphics; description of GANG Laboratory; software development at GANG; and mathematical and scientific research activities.
Date: August 13, 1992
Creator: Hoffman, D. A. & Spruck, J.
Partner: UNT Libraries Government Documents Department
open access

ACE program/UNIX user manual

Description: This report the following: How to use the ace program?; Introduction to the ace program; Online command; Define a macro file; Macro commands; Counters and MCA; Counters usage; Counters database; Feedback Counter Database; MCA functions and macro command; X window Interclient Communication; and How to get around in UNIX?
Date: January 12, 1993
Creator: Feng-Berman, S. K.
Partner: UNT Libraries Government Documents Department
open access

Object technology: A white paper

Description: Object-Oriented Technology (OOT), although not a new paradigm, has recently been prominently featured in the trade press and even general business publications. Indeed, the promises of object technology are alluring: the ability to handle complex design and engineering information through the full manufacturing production life cycle or to manipulate multimedia information, and the ability to improve programmer productivity in creating and maintaining high quality software. Groups at a number of… more
Date: May 11, 1992
Creator: Jordan, S. R.; Arrowood, L. F.; Cain, W. D.; Stephens, W. M. & Vickers, B. D.
Partner: UNT Libraries Government Documents Department
open access

The Global Climatology Network Precipitation data

Description: Several years ago, in response to growing concern about global climate change, the US National Climatic Data Center and the Carbon Dioxide Information Analysis Center undertook an effort to create a baseline global land surface climate data set called the Global Historical Climatology Network (GHCN, Vose et al., 1992). GHCN was created by merging several large existing climate data sets into one data base. Fifteen separate data sets went into the creation of the GHCN version 1.0. GHCN version 1… more
Date: August 1, 1993
Creator: Peterson, T. C.; Easterling, D. R.; Vose, R. S. & Eischeid, J. K.
Partner: UNT Libraries Government Documents Department
open access

Atmospheric transport and dispersion of pollutants and related meteorological studies. Final report for 1990

Description: A new National Meteorological Support Plan for Federal responses to the release of hazardous materials into the atmosphere is being formulated. The plan summarizes Government agencies` responsibilities for characterizing, validating, identifying, tracking, monitoring, and forecasting the transport and dispersion of released hazardous materials. Under Chapter 2, Agency Requirements and Capabilities, the plan states that Department of Commerce, National Oceanic and Atmospheric Administration (NOA… more
Date: 1991
Partner: UNT Libraries Government Documents Department
open access

The Coastal Ocean Prediction Systems program: Understanding and managing our coastal ocean. Volume 1: Strategic summary

Description: The proposed COPS (Coastal Ocean Prediction Systems) program is concerned with combining numerical models with observations (through data assimilation) to improve our predictive knowledge of the coastal ocean. It is oriented toward applied research and development and depends upon the continued pursuit of basic research in programs like COOP (Coastal Ocean Processes); i.e., to a significant degree it is involved with ``technology transfer`` from basic knowledge to operational and management app… more
Date: May 15, 1990
Partner: UNT Libraries Government Documents Department
open access

BIGFLOW: A numerical code for simulating flow in variably saturated, heterogeneous geologic media. Theory and user`s manaual, Version 1.1

Description: This report documents BIGFLOW 1.1, a numerical code for simulating flow in variably saturated heterogeneous geologic media. It contains the underlying mathematical and numerical models, test problems, benchmarks, and applications of the BIGFLOW code. The BIGFLOW software package is composed of a simulation and an interactive data processing code (DATAFLOW). The simulation code solves linear and nonlinear porous media flow equations based on Darcy`s law, appropriately generalized to account for … more
Date: June 1993
Creator: Ababou, R. & Bagtzoglou, A. C.
Partner: UNT Libraries Government Documents Department
open access

DMM: A Multigroup, Multiregion One-Space-Dimensional Computer Program Using Neutron Diffusion Theory. Part 2. DMM Program Description

Description: Operating instructions are presented for DMM, a Remington Rand 1103A program using one-space-dimensional multigroup diffusion theory to calculate the reactivity or critical conditions and flux distribution of a multiregion reactor. Complete descriptions of the routines and problem input and output specifications are also included. (D.L.C.)
Date: 1960
Creator: Kavanagh, D. L.; Antchagno, M.J. & Egawa, E.K.
Partner: UNT Libraries Government Documents Department
open access

SIAM conference on applications of dynamical systems. Abstracts and author index

Description: A conference (Oct.15--19, 1992, Snowbird, Utah; sponsored by SIAM (Society for Industrial and Applied Mathematics) Activity Group on Dynamical Systems) was held that highlighted recent developments in applied dynamical systems. The main lectures and minisymposia covered theory about chaotic motion, applications in high energy physics and heart fibrillations, turbulent motion, Henon map and attractor, integrable problems in classical physics, pattern formation in chemical reactions, etc. The con… more
Date: 1992
Partner: UNT Libraries Government Documents Department
open access

Iterative methods for the WLS state estimation on RISC, vector, and parallel computers

Description: We investigate the suitability and effectiveness of iterative methods for solving the weighted-least-square (WLS) state estimation problem on RISC, vector, and parallel processors. Several of the most popular iterative methods are tested and evaluated. The best performing preconditioned conjugate gradient (PCG) is very well suited for vector and parallel processing as is demonstrated for the WLS state estimation of the IEEE standard test systems. A new sparse matrix format for the gain matrix i… more
Date: October 1, 1993
Creator: Nieplocha, J. & Carroll, C. C.
Partner: UNT Libraries Government Documents Department
open access

Dynamic and quasi-static simulation and analysis of the plutonium oxide/metal containers subject to 30-foot dropping

Description: This analysis of the plutonium oxide/metal storage containers is in support of the design and testing project The results from the dynamic analysis show some important facts that have not been considered before. The internal bagless transfer can will have higher stress than the primary container. The quasi-static analysis provides a conservative solution. In both vertical upright drop (dynamic) and inclined upside down drop (quasi-static) the containers are structurally sound.
Date: January 1, 1995
Creator: Gong, C. & Miller, R. F.
Partner: UNT Libraries Government Documents Department
open access

Applications of neural networks to monitoring and decision making in the operation of nuclear power plants. Summary

Description: Application of neural networks to monitoring and decision making in the operation of nuclear power plants is being investigated under a US Department of Energy sponsored program at the University of Tennessee. Projects include the feasibility of using neural networks for the following tasks: (1) diagnosing specific abnormal conditions or problems in nuclear power plants, (2) detection of the change of mode of operation of the plant, (3) validating signals coming from detectors, (4) review of ``… more
Date: December 31, 1990
Creator: Uhrig, R. E.
Partner: UNT Libraries Government Documents Department
open access

An electronic stroll through the global village

Description: This paper is a semi-random walk through Usenet News, a bulletin board system that exists on the vast Internet computer network. Interaction in such a medium is an interesting hybrid of speech and writing, of monologue and dialogue and sometimes an open shouting match in a crowded room. Those who are intrigued by these matters will be able to see a number of research areas exposed in this frankly anecdotal paper. In addition to being anecdotal, this paper is a work of participatory observation.… more
Date: September 1, 1992
Creator: Chew, J.
Partner: UNT Libraries Government Documents Department
open access

Displaying DIII-D plasma data using DEC`s X window system

Description: The D3-D tokamak program, funded by the Department of Energy, carries out plasma physics and fusion energy research experiments. The machine began operation in February 1986; at that time, approximately 7 Mbytes of data was collected for shot. Since that time, the shot size has steadily increased to over 50 Mbytes with the average shot size between 35 and 45 Mbytes. Shots are fired every 12 to 15 minutes and last approximately 5 to 10 seconds. Between 30 and 40 shots are fired each day when pla… more
Date: November 1, 1991
Creator: Greene, K. L.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen