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The Sandia GeoModel : theory and user's guide.

Description: The mathematical and physical foundations and domain of applicability of Sandia's GeoModel are presented along with descriptions of the source code and user instructions. The model is designed to be used in conventional finite element architectures, and (to date) it has been installed in five host codes without requiring customizing the model subroutines for any of these different installations. Although developed for application to geological materials, the GeoModel actually applies to a much … more
Date: August 1, 2004
Creator: Brannon, Rebecca Moss & Fossum, Arlo Frederick
Partner: UNT Libraries Government Documents Department
open access

A classification scheme for risk assessment methods.

Description: This report presents a classification scheme for risk assessment methods. This scheme, like all classification schemes, provides meaning by imposing a structure that identifies relationships. Our scheme is based on two orthogonal aspects--level of detail, and approach. The resulting structure is shown in Table 1 and is explained in the body of the report. Each cell in the Table represent a different arrangement of strengths and weaknesses. Those arrangements shift gradually as one moves through… more
Date: August 1, 2004
Creator: Stamp, Jason Edwin & Campbell, Philip LaRoche
Partner: UNT Libraries Government Documents Department
open access

Adaptive Torque Control of Variable Speed Wind Turbines

Description: The primary focus of this work is a new adaptive controller that is designed to resemble the standard non-adaptive controller used by the wind industry for variable speed wind turbines below rated power. This adaptive controller uses a simple, highly intuitive gain adaptation law designed to seek out the optimal gain for maximizing the turbine's energy capture. It is designed to work even in real, time-varying winds.
Date: August 1, 2004
Creator: Johnson, K. E.
Partner: UNT Libraries Government Documents Department
open access

Implementation of a Comprehensive On-Line Closed-Loop Diagnostic System for Roll-to-Roll Amorphous Silicon Solar Cell Production: Phase I Annual Report, 23 April 2003--31 August 2003

Description: This subcontract report describes how Energy Conversion Devices, Inc., has developed and built 7 generations of roll-to-roll amorphous silicon PV production equipment. In the ECD/United Solar production process, we deposit about a 1-mm-thick, 12-layer coating consisting of a metal/oxide backreflector, a 9-layer a-Si/a-SiGe alloy triple-junction solar cell, and top transparent conductive oxide coating onto 125-mm-thick, 35.5-cm-wide stainless-steel webs in a series of three roll-to-roll depositi… more
Date: August 1, 2004
Creator: Ellison, T.
Partner: UNT Libraries Government Documents Department
open access

Closure Report for Corrective Action Unit 271: Areas 25, 26, and 27 Septic Systems, Nevada Test Site, Nevada with Errata Sheet, Revision 0

Description: The purpose of this CR is to document that closure activities have met the approved closure standards detailed in the NDEP-approved CAP for CAU 271. The purpose of the Errata Sheet is as follows: In Appendix G, Use Restriction (UR) Documentation, the UR form and drawing of the UR area do not reflect the correct coordinates. Since the original UR was put into place, the UR Form has been updated to include additional information that was not on the original form. This Errata Sheet replaces the or… more
Date: August 1, 2004
Creator: Krauss, Mark
Partner: UNT Libraries Government Documents Department
open access

Salinas primer.

Description: Salinas provides a massively parallel implementation of structural dynamics finite element analysis. This capability is required for high fidelity, validated models used in modal, vibration, static and shock analysis of weapons systems. General capabilities for modal, statics and transient dynamics are provided. Salinas is similar to commercial codes like Nastran or Abaqus. It has some nonlinear capability, but excels in linear computation. It is different than the above commercial codes in tha… more
Date: August 1, 2004
Creator: Walsh, Timothy Francis; Reese, Garth M. & Bhardwaj, Manoj Kumar
Partner: UNT Libraries Government Documents Department
open access

Mud Pit Risk-Based Closure Strategy Report, Nevada Test Site, Nevada, Revision 0

Description: This report presents the findings of the human and ecological risk assessment for the NTS mud pits. The risk assessment utilizes data from 52 of the 270 NTS mud pits in conjunction with corroborative data from 87 other DOE mud pits associated with nuclear testing (at locations on the NTS, in the western United States, and Alaska) as well as relevant process knowledge. Based on the risk assessment findings, the report provides a strategy for further evaluation, characterization, and closure of a… more
Date: August 1, 2004
Creator: Hoenes, Brain
Partner: UNT Libraries Government Documents Department
open access

Results from ORNL Characterization of HRB-21 Reference Fuel

Description: This document is a compilation of the characterization data produced by ORNL for coated UCO fuel particles (350 {micro}m kernel diameter) fabricated by GA for the HRB-21 irradiation test capsule. The archived fuel particles form the batch used in HRB-21 were obtained by the Advanced Gas Reactor Fuel Development and Qualification (AGR) program for use as a reference material. The GA characterization data for this batch of fuel particles is presented in document GT-HTGR-88357, Rev. C, 'Capsule HR… more
Date: August 1, 2004
Creator: Hunn, John D
Partner: UNT Libraries Government Documents Department
open access

Photovoltaic array performance model.

Description: This document summarizes the equations and applications associated with the photovoltaic array performance model developed at Sandia National Laboratories over the last twelve years. Electrical, thermal, and optical characteristics for photovoltaic modules are included in the model, and the model is designed to use hourly solar resource and meteorological data. The versatility and accuracy of the model has been validated for flat-plate modules (all technologies) and for concentrator modules, as… more
Date: August 1, 2004
Creator: Kratochvil, Jay A.; Boyson, William Earl & King, David L.
Partner: UNT Libraries Government Documents Department
open access

Tensor-Krylov methods for solving large-scale systems of nonlinear equations.

Description: This paper develops and investigates iterative tensor methods for solving large-scale systems of nonlinear equations. Direct tensor methods for nonlinear equations have performed especially well on small, dense problems where the Jacobian matrix at the solution is singular or ill-conditioned, which may occur when approaching turning points, for example. This research extends direct tensor methods to large-scale problems by developing three tensor-Krylov methods that base each iteration upon a l… more
Date: August 1, 2004
Creator: Bader, Brett William
Partner: UNT Libraries Government Documents Department
open access

Extended ocular hazard distances associated with intrabeam aided viewing of the Sandia remote sensing system, airborne aura laser (Big Sky Variant).

Description: A laser hazard analysis to determine the Extended Ocular Hazard Distances associated with a possible intrabeam aided viewing of the Sandia Remote Sensing System (SRSS) airborne AURA laser (Big Sky Laser Technology) was performed based on the 2000 version of the American National Standard Institute's (ANSI) Standard Z136.1, for the Safe Use of Lasers and the 2000 version of the ANSI Standard Z136.6, for the Safe Use of Lasers Outdoors. The AURA lidar system is installed in the instrument pod of … more
Date: August 1, 2004
Creator: Augustoni, Arnold L.
Partner: UNT Libraries Government Documents Department
open access

Sensor fusion for intelligent process control.

Description: An integrated system for the fusion of product and process sensors and controls for production of flat glass was envisioned, having as its objective the maximization of throughput and product quality subject to emission limits, furnace refractory wear, and other constraints. Although the project was prematurely terminated, stopping the work short of its goal, the tasks that were completed show the value of the approach and objectives. Though the demonstration was to have been done on a flat gla… more
Date: August 1, 2004
Creator: Connors, John J. (PPG Industries, Inc., Harmar Township, PA); Hill, Kevin (PPG Industries, Inc., Harmar Township, PA); Hanekamp, David (PPG Industries, Inc., Harmar Township, PA); Haley, William F. (PPG Industries, Inc., Wichita Falls, TX); Gallagher, Robert J.; Gowin, Craig (PPG Industries, Inc., Batavia, IL) et al.
Partner: UNT Libraries Government Documents Department
open access

Capacitance and effective area of flush monopole probes.

Description: Approximate formulas are constructed and numerical simulations are carried out for electric field derivative probes that have the form of flush mounted monopoles. Effects such as rounded edges are included. A method is introduced to make results from two-dimensional conformal mapping analyses accurately apply to the three-dimensional axisymmetric probe geometry
Date: August 1, 2004
Creator: Warne, Larry Kevin; Johnson, William Arthur; Morris, Marvin E.; Basilio, Lorena I.; Lehr, Jane Marie & Higgins, Matthew B.
Partner: UNT Libraries Government Documents Department
open access

Recapture training aid.

Description: The breacher's training aid described in this report was designed to simulate features of magazine and steel-plate doors. The training aid enables breachers to practice using their breaching tools on components that they may encounter when attempting to enter a facility. Two types of fixtures were designed and built: (1) a large fixture incorporates simulated hinges, hasps, lock shrouds, and pins, and (2) a small fixture simulates the cross section of magazine and steel-plate doors. The small f… more
Date: August 1, 2004
Creator: Pacheco, James Edward
Partner: UNT Libraries Government Documents Department
open access

Corrective Action Decision Document/Closure Report for Corrective Action Unit 527: Horn Silver Mine, Nevada Test Site, Nevada

Description: This Corrective Action Decision Document/Closure Report (CADDKR) has been prepared for Corrective Action Unit (CAU) 527: Horn Silver Mine, Nevada Test Site (NTS), Nevada, in accordance with the Federal Facility Agreement and Consent Order (1996). Corrective Action Unit 527 is located within Area 26 of the NTS and consists of CAS 26-20-01, Contaminated Waste Dump No.1. This CADDKR refers to the site as CAU 527 or the Horn Silver Mine (HSM). This CADDKR provides or references the specific informa… more
Date: August 1, 2004
Partner: UNT Libraries Government Documents Department
open access

An example uncertainty and sensitivity analysis at the Horonobe site for performance assessment calculations.

Description: Given pre-existing Groundwater Modeling System (GMS) models of the Horonobe Underground Research Laboratory (URL) at both the regional and site scales, this work performs an example uncertainty analysis for performance assessment (PA) applications. After a general overview of uncertainty and sensitivity analysis techniques, the existing GMS sitescale model is converted to a PA model of the steady-state conditions expected after URL closure. This is done to examine the impact of uncertainty in s… more
Date: August 1, 2004
Creator: James, Scott Carlton
Partner: UNT Libraries Government Documents Department
open access

U.S. Department of Energy FreedomCAR & Vehicle Technologies Program: Oil Bypass Filter Technology Evaluation Seventh Quarterly Report April - June 2004

Description: This Oil Bypass Filter Technology Evaluation quarterly report (April–June 2004) details the ongoing fleet evaluation of an oil bypass filter technology by the Idaho National Engineering and Environmental Laboratory (INEEL) for the U.S. Department of Energy’s (DOE) FreedomCAR & Vehicle Technologies Program. Eight INEEL four-cycle diesel engine buses used to transport INEEL employees on various routes and six INEEL Chevrolet Tahoes with gasoline engines are equipped with oil bypass filter systems… more
Date: August 1, 2004
Creator: Zirker, Larry; Francfort, James & Fielding, Jordan
Partner: UNT Libraries Government Documents Department
open access

Rock penetration : finite element sensitivity and probabilistic modeling analyses.

Description: This report summarizes numerical analyses conducted to assess the relative importance on penetration depth calculations of rock constitutive model physics features representing the presence of microscale flaws such as porosity and networks of microcracks and rock mass structural features. Three-dimensional, nonlinear, transient dynamic finite element penetration simulations are made with a realistic geomaterial constitutive model to determine which features have the most influence on penetratio… more
Date: August 1, 2004
Creator: Fossum, Arlo Frederick
Partner: UNT Libraries Government Documents Department
open access

Glass Furnace Combustion and Melting Research Facility.

Description: The need for a Combustion and Melting Research Facility focused on the solution of glass manufacturing problems common to all segments of the glass industry was given high priority in the earliest version of the Glass Industry Technology Roadmap (Eisenhauer et al., 1997). Visteon Glass Systems and, later, PPG Industries proposed to meet this requirement, in partnership with the DOE/OIT Glass Program and Sandia National Laboratories, by designing and building a research furnace equipped with sta… more
Date: August 1, 2004
Creator: Connors, John J. (PPG Industries, Inc., Pittsburgh, PA); McConnell, John F. (JFM Consulting, Inc., Pittsburgh, PA); Henry, Vincent I. (Henry Technology Solutions, LLC, Ann Arbor, MI); MacDonald, Blake A.; Gallagher, Robert J.; Field, William B. (Lilja Corp., Livermore, CA) et al.
Partner: UNT Libraries Government Documents Department
open access

An abstract class loader for the SSP and its implementation in TL.

Description: The SSP is a hardware implementation of a subset of the JVM for use in high consequence embedded applications. In this context, a majority of the activities belonging to class loading, as it is defined in the specification of the JVM, can be performed statically. Static class loading has the net result of dramatically simplifying the design of the SSP as well as increasing its performance. Due to the high consequence nature of its applications, strong evidence must be provided that all aspects … more
Date: August 1, 2004
Creator: Wickstrom, Gregory Lloyd; Winter, Victor Lono (University of Nebraska at Omaha, Omaha, NE); Fraij, Fares (University of Texas at El Paso, El Paso, TX); Roach, Steve (University of Texas at El Paso, El Paso, TX) & Beranek, Jason (University of Nebraska at Omaha, Omaha, NE)
Partner: UNT Libraries Government Documents Department
open access

The SANDmath package.

Description: This is a basic documentation explaining how to use the SANDmath macros with a LATEX 2{var_epsilon} document pertaining to the SANDreport class.
Date: August 1, 2004
Creator: PÔebay, Philippe Pierre
Partner: UNT Libraries Government Documents Department
open access

Approach and development strategy for an agent-based model of economic confidence.

Description: We are extending the existing features of Aspen, a powerful economic modeling tool, and introducing new features to simulate the role of confidence in economic activity. The new model is built from a collection of autonomous agents that represent households, firms, and other relevant entities like financial exchanges and governmental authorities. We simultaneously model several interrelated markets, including those for labor, products, stocks, and bonds. We also model economic tradeoffs, such a… more
Date: August 1, 2004
Creator: Sprigg, James A.; Pryor, Richard J. & Jorgensen, Craig Reed
Partner: UNT Libraries Government Documents Department
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