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in subjects: "E Codes"

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Elemental ABAREX -- a user's manual.

ELEMENTAL ABAREX is an extended version of the spherical optical-statistical model code ABAREX, designed for the interpretation of neutron interactions with elemental targets consisting of up to ten isotopes. The contributions from each of the isotopes of the element are explicitly dealt with, and combined for comparison with the elemental observables. Calculations and statistical fitting of experimental data are considered. The code is written in FORTRAN-77 and arranged for use on the IBM-comp… more

Date: May 26, 1999

Creator: Smith, A. B.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Program Epicshow: A computer code to allow interactive viewing of the EPIC data libraries (version 94-1)

This report discusses the following on the program EPICSHOW: The EPIC System Overview; The Epicshow code; Contents of the Data Bases; Implementing Epicshow; What is Epicshow?; Brief Instruction to the Menu Options; A Guided tour of Epicshow; Z+10, Z-10, etc.: Selecting a Target; Freeze!!!; Major, Minor, etc.: Selecting a Type of Data; Photon, Electron, etc.: Selecting a Projectile; Example Target and Projectile Output; Grids; 2 X 2; Zoom X and Show All; Points; Ratio; Lin/Log X and Y: Linear or… more

Date: February 1, 1994

Creator: Cullen, D.E.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

EQ3NR, a computer program for geochemical aqueous speciation-solubility calculations: Theoretical manual, user`s guide, and related documentation (Version 7.0); Part 3

EQ3NR is an aqueous solution speciation-solubility modeling code. It is part of the EQ3/6 software package for geochemical modeling. It computes the thermodynamic state of an aqueous solution by determining the distribution of chemical species, including simple ions, ion pairs, and complexes, using standard state thermodynamic data and various equations which describe the thermodynamic activity coefficients of these species. The input to the code describes the aqueous solution in terms of analy… more

Date: September 14, 1992

Creator: Wolery, T. J.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

EQPT, a data file preprocessor for the EQ3/6 software package: User`s guide and related documentation (Version 7.0); Part 2

EQPT is a data file preprocessor for the EQ3/6 software package. EQ3/6 currently contains five primary data files, called datao files. These files comprise alternative data sets. These data files contain both standard state and activity coefficient-related data. Three (com, sup, and nea) support the use of the Davies or B-dot equations for the activity coefficients; the other two (hmw and pit) support the use of Pitzer`s (1973, 1975) equations. The temperature range of the thermodynamic data on… more

Date: December 17, 1992

Creator: Daveler, S.A. & Wolery, T.J.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Controlling EPICS from a web browser.

An alternative to using a large graphical display manager like MEDM [1,2] to interface to a control system, is to use individual control objects, such as text boxes, meters, etc., running in a browser. This paper presents three implementations of this concept, one using ActiveX controls, one with Java applets, and another with Microsoft Agent. The ActiveX controls have performance nearing that of MEDM, but they only work on Windows platforms. The Java applets require a server to get around Web … more

Date: April 13, 1999

Creator: Evans, K., Jr.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Long-term modeling of glass waste in portland cement- and clay-based matrices

A set of ``templates`` was developed for modeling waste glass interactions with cement-based and clay-based matrices. The templates consist of a modified thermodynamic database, and input files for the EQ3/6 reaction path code, containing embedded rate models and compositions for waste glass, cement, and several pozzolanic materials. Significant modifications were made in the thermodynamic data for Th, Pb, Ra, Ba, cement phases, and aqueous silica species. It was found that the cement-containin… more

Date: December 1995

Creator: Stockman, H. W.; Nagy, K. L. & Morris, C. E.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Water-rock interactions and the pH stability of groundwater from Yucca Mountain, Nevada

Titrations of acidic solutions in waters from the tuff and carbonate aquifers at Yucca Mountain were simulated using the geochemical codes PHREEQE and EQ3/6. The simulations tested pH stability of the waters in the presence of different minerals and in their absence. Two acidic solutions, 10{sup {minus}4} HCl and 10{sup {minus}4}M UO{sub 2}(NO{sub 3}){sub 2}, were titrated in to the water. Little pH and/or compositional change resulted in the groundwater when the HCl solution was titrated, but … more

Date: June 1, 1992

Creator: Ebinger, M.H.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

The EQ3/6 software package for geochemical modeling: Current status

EQ3/6 is a software package for modeling chemical and mineralogic interactions in aqueous geochemical systems. The major components of the package are EQ3NR (a speciation-solubility code), EQ6 (a reaction path code), EQLIB (a supporting library), and a supporting thermodynamic data base. EQ3NR calculates aqueous speciation and saturation indices from analytical data. It can also be used to calculate compositions of buffer solutions for use in laboratory experiments. EQ6 computes reaction path m… more

Date: July 1, 1988

Creator: Wolery, T. J.; Jackson, K. J.; Bourcier, W. L.; Bruton, C. J.; Viani, B. E.; Knauss, K. G. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

EQ3/6, a software package for geochemical modeling of aqueous systems: Package overview and installation guide (Version 7.0)

EQ3/6 is a software package for geochemical modeling of aqueous systems. This report describes version 7.0. The major components of the package include: EQ3NR, a speciation-solubility code; EQ6, a reaction path code which models water/rock interaction or fluid mixing in either a pure reaction progress mode or a time mode; EQPT, a data file preprocessor, EQLIB, a supporting software library; and five supporting thermodynamic data files. The software deals with the concepts of thermodynamic equil… more

Date: September 14, 1992

Creator: Wolery, T.J.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

EQ6, a computer program for reaction path modeling of aqueous geochemical systems: Theoretical manual, user`s guide, and related documentation (Version 7.0); Part 4

EQ6 is a FORTRAN computer program in the EQ3/6 software package (Wolery, 1979). It calculates reaction paths (chemical evolution) in reacting water-rock and water-rock-waste systems. Speciation in aqueous solution is an integral part of these calculations. EQ6 computes models of titration processes (including fluid mixing), irreversible reaction in closed systems, irreversible reaction in some simple kinds of open systems, and heating or cooling processes, as well as solve ``single-point`` ther… more

Date: October 9, 1992

Creator: Wolery, T.J. & Daveler, S.A.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Creation and testing of an ENDF/B-VI neutron data library (ENDF60) for use with MCNP{trademark}

The continuous-energy neutron data library ENDF60, for use with the Monte Carlo N Particle radiation transport code MCNP4A, was released in the fall of 1994. The ENDF60 library is comprised of 124 nuclide data files based on the ENDF/B-VI evaluations through Release 2. Fifty-two percent of these ENDF/B-VI evaluations are translations from ENDF/B-V. The remaining forty-eight percent are new evaluations which have sometimes changed significantly. The new evaluations include important materials fo… more

Date: September 1995

Creator: Frankle, S. C. & MacFarlane, R. E.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

RESRAD-ECORISK: A computer code for ecological risk assessment

RESRAD-ECORISK is a PC-based computer code developed by Argonne National Laboratory (ANL) to estimate risks from exposure of ecological receptors at sites contaminated with potentially hazardous chemicals. The code is based on and is consistent with the methodologies of RESRAD-CHEM, an ANL-developed computer code for assessments of human health risk. RESRAD-ECORISK uses environmental fate and transport models to estimate contaminant concentrations in environmental media from an initial contamin… more

Date: December 1, 1995

Creator: Cheng, J. J.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Effect of roof slope and thickness on the performance of a saltstone vault

At the Savannah River Site, low-level radioactive decontaminated salt solution is mixed with slag, flyash, and cement to form a grout-like material called ``Saltstone.`` The Saltstone is poured into concrete vaults constructed at the Saltstone Disposal Facility (SDF). The SDF is designed for the release of contaminants in a slow, controlled manner over thousands of years. The impact of SDF on groundwater has been studied in a radiological performance assessment (PA). Groundwater models were use… more

Date: September 1995

Creator: Yu, A. D.; Lam, Poh-Sang & Hsu, R. H.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Geothermal areas as analogues to chemical processes in the near-field and altered zone of the potential Yucca Mountain, Nevada repository

The need to bound system performance of the potential Yucca Mountain repository for thousands of years after emplacement of high-level nuclear waste requires the use of computer codes. The use of such codes to produce reliable bounds over such long time periods must be tested using long-lived natural and historical systems as analogues. The geothermal systems of the Taupo Volcanic Zone (TVZ) in New Zealand were selected as the site most amenable to study. The rocks of the TVZ are silicic volcan… more

Date: February 1, 1995

Creator: Bruton, C. J.; Glassley, W. E. & Meike, A.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

ER-Worker: A computer code to predict remediation worker exposure and safety hazards

The U.S. Department of Energy (DOE) has generated and disposed of large quantities of waste as a result of 50 years of nuclear weapons production. This waste has been disposed of in waste sites such as burial grounds, waste pits, holding ponds, and landfills. Many of these waste sites have begun to release contamination offsite and potentially pose risks to humans living or working in the vicinity of these sites. By 2019, DOE must meet its goals to achieve timely compliance with all applicable … more

Date: December 31, 1994

Creator: Blaylock, B.P.; Campbell, A.C.; Hutchison, J.F.; Simek, M.A.P.; Sutherland, J.F. & Legg, J.L.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Yucca Mountain thermal response: An evaluation of the effects of modeled geologic structure and thermal property descriptions

To assess the influence of mountain-scale thermal property model variations on predicted host-rock thermal response, a series of heat conduction calculations were run using a representative two-dimensional cross section of Yucca Mountain. The effects of modeled geologic structure were evaluated through comparisons of results from a single-material, homogeneous model with those from a uniformly layered model, a discontinuous sloping-layered model, and a geo-statistical realization of thermal pro… more

Date: September 1995

Creator: Longenbaugh, R.; Rautman, C. A. & Ryder, E. E.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

One-dimensional human intrusion analysis of the paleozoic aquifer, as part of the site suitability effort at Yucca Mountain, Nevada

A programmatic need was identified by the US Department of Energy, through the Office of Civilian Radioactive Waste Management, for a preliminary ``site suitability`` performance assessment for the Yucca Mountain site. The effort is designed to integrate field, laboratory, and modeling information to identify key technical issues that need to be addressed and determine which field parameters are important during site characterization. This report examines one-dimensional transport of radionucld… more

Date: July 1, 1991

Creator: McGraw, M. A.; Burdick, K. W. & Eslinger, P. W.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Synchronized time stamp support

New software has been added to IOC core to maintain time stamps. The new software has the ability to maintain time stamps over all IOCs on a network. The purpose of this paper is to explain how EPICS will synchronize the time stamps. In addition, this paper will explain how to configure and use the new EPICS time stamp support software.

Date: February 16, 1994

Creator: Kowalkowski, J.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Hawaii demand-side management resource assessment. Final report, Reference Volume 3 -- Residential and commercial sector DSM analyses: Detailed results from the DBEDT DSM assessment model; Part 1, Technical potential

The Hawaii Demand-Side Management Resource Assessment was the fourth of seven projects in the Hawaii Energy Strategy (HES) program. HES was designed by the Department of Business, Economic Development, and Tourism (DBEDT) to produce an integrated energy strategy for the State of Hawaii. The purpose of Project 4 was to develop a comprehensive assessment of Hawaii`s demand-side management (DSM) resources. To meet this objective, the project was divided into two phases. The first phase included de… more

Date: April 1, 1995

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Effects of closure cap and liner on contaminant release rates from grouted wastes

This paper describes a groundwater modeling study of waste disposal concepts using grouted waste forms. The focus of the study is on the effects of clay caps and concrete vaults on contaminant migration. The authors modeled three waste disposal scenarios: (1) Grouted waste was solidified in an earthen trench and covered with soil, there was no vault and no cap; (2) grouted waste was solidified in an earthen trench, the entire waste disposal facility was then closed under a clay cap; (3) grouted… more

Date: August 1, 1996

Creator: Yu, A. D.; Fowler, J. R. & Bignell, D. T.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Evaluation of energy system analysis techniques for identifying underground facilities

This report describes the results of a study to determine the feasibility and potential usefulness of applying energy system analysis techniques to help detect and characterize underground facilities that could be used for clandestine activities. Four off-the-shelf energy system modeling tools were considered: (1) ENPEP (Energy and Power Evaluation Program) - a total energy system supply/demand model, (2) ICARUS (Investigation of Costs and Reliability in Utility Systems) - an electric utility s… more

Date: March 1, 1996

Creator: VanKuiken, J.C.; Kavicky, J.A. & Portante, E.C.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Intercomparison of low-frequency variability of the global 200 hPa circulation for AMIP simulations

In the Atmospheric Model Intercomparison Project (AMIP) a number of GCMs are integrated for a 10 year period, 1979-1988, all using the same monthly mean sea surface temperature (SST). This permits a useful intercomparison of the response of the models to the imposed SST. The variables used here for the intercomparison are the 200 hPa divergence and streamfunction. The data used are in the form of monthly averages and are filtered to a spatial resolution of T10, although the actual spatial resol… more

Date: March 1, 1996

Creator: Boyle, J.S.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

A methodology for string resolution

In this paper we present a methodology, not a tool. We present this methodology with the intent that it be adopted, on a case by case basis, by each of the existing tools in EPICS. In presenting this methodology, we describe each of its two components in detail and conclude with an example depicting how the methodology can be used across a pair of tools. The task of any control system is to provide access to the various components of the machine being controlled, for example, the Advanced Photo… more

Date: November 1, 1992

Creator: Karonis, N.T.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

EPICS Input/Output Controller (IOC) application developer`s guide. APS Release 3.12

This document describes the core software that resides in an Input/Output Controller (IOC), one of the major components of EPICS. The basic components are: (OPI) Operator Interface; this is a UNIX based workstation which can run various EPICS tools; (IOC) Input/Output Controller; this is a VME/VXI based chassis containing a Motorola 68xxx processor, various I/O modules, and VME modules that provide access to other I/O buses such as GPIB, (LAN), Local Area Network; and this is the communication … more

Date: November 1, 1994

Creator: Kraimer, M.R.

Item Type: Report

Partner: UNT Libraries Government Documents Department