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in creator/contributor: "United States. Department of Energy. Office of Financial Management and Controller."

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Context sensitivity and ambiguity in component-based systems design

Designers of components-based, real-time systems need to guarantee to correctness of soft-ware and its output. Complexity of a system, and thus the propensity for error, is best characterized by the number of states a component can encounter. In many cases, large numbers of states arise where the processing is highly dependent on context. In these cases, states are often missed, leading to errors. The following are proposals for compactly specifying system states which allow the factoring of co… more

Date: October 1, 1997

Creator: Bespalko, Stephen J. & Sindt, Alexander

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Growing a market economy

This report presents a microsimulation model of a transition economy. Transition is defined as the process of moving from a state-enterprise economy to a market economy. The emphasis is on growing a market economy starting from basic microprinciples. The model described in this report extends and modifies the capabilities of Aspen, a new agent-based model that is being developed at Sandia National Laboratories on a massively parallel Paragon computer. Aspen is significantly different from tradi… more

Date: September 1, 1997

Creator: Basu, N. & Pryor, R.J.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Chain modeling for life cycle systems engineering

Throughout Sandia`s history, products have been represented by drawings. Solid modeling systems have recently replaced drawings as the preferred means for representing product geometry. These systems are used for product visualization, engineering analysis and manufacturing planning. Unfortunately, solid modeling technology is inadequate for life cycle systems engineering, which requires maintenance of technical history, efficient management of geometric and non-geometric data, and explicit rep… more

Date: December 1, 1997

Creator: Rivera, J.J. & Shapiro, V.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Thermal neutron flux contours from criticality event

The generation of thermal neutron flux contours from a criticality event is demonstrated for an idealized building with a criticality event in one of the rooms. The MCNP Monte Carlo computer code is used to calculate the thermal neutron flux.

Date: August 1, 1996

Creator: Carter, L.L., Westinghouse Hanford

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

A review of existing model of no-notice randomized inspection and their potential application to model Pu handling facilities

Literature regarding two alternative safeguards concepts--randomization and zones--is reviewed. The concepts were introduced in the early 1980`s to address the need to make safeguards more efficient in the light of the increasing number of facilities under safeguards and a fixed IAEA inspection budget. The paper discusses literature broadly relating these approaches to IAEA needs and objectives, reports from IAEA consultants meetings, reports of field trials, and other technical papers. The rev… more

Date: December 31, 1997

Creator: Sanborn, J. & Lu, M.S.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Westinghouse Hanford Company quality assurance program and implementation plan

This is the first revision of the Quality AssurancePlan/Implementation Plan (QAP/IP) for nuclear facilities managedand operated by the Westinghouse Hanford Company (WHC).Development of the initial IP required review of the WHC qualityassurance program to the requirements of the 10 CFR 830.120, andcompletion of initial baseline assessments against the QAP toverify implementation of the program. Each WHC-managed nuclearfacility provided a stand-alone section to the QAP/IP, describingits mission a… more

Date: July 1, 1996

Creator: Moss, S.S., Westinghouse Hanford

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

DOE Order 5480.28 Hanford facilities database

This document describes the development of a database of DOE and/or leased Hanford Site Facilities. The completed database will consist of structure/facility parameters essential to the prioritization of these structures for natural phenomena hazard vulnerability in compliance with DOE Order 5480.28, `Natural Phenomena Hazards Mitigation`. The prioritization process will be based upon the structure/facility vulnerability to natural phenomena hazards. The ACCESS based database, `Hanford Faciliti… more

Date: September 1, 1996

Creator: Hayenga, J.L., Westinghouse Hanford

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Corrective action management (CAM) process guide

Consistent direction for identification, long-term reporting and trending, and correction of conditions adverse to the environment, safety and health will facilitate a successful transition and follow- on for the Project Hanford Management Contractor (PHMC). Continuity of the corrective action management process is vital. It provides consistency via reporting and trending on corrective action management activities at the Site during the transition process. To ensure success,consideration of the… more

Date: June 18, 1996

Creator: Lutter, T.M., Westinghouse Hanford

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Wind load comparison for the ASCE standard 7 and the Hanford site design criteria

This document provides calculations and discussions to compare Hanford Site wind load criteria with the current national standard for wind loads (ASCE 7, 1995). Site criteria uses the 1988 edition ASCE 7.

Date: July 16, 1996

Creator: Giller, R.A., Westinghouse Hanford

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Contact Modeling for Robotics Applications

At Sandia National Laboratories (SNL), the authors are developing the ability to accurately predict motions for arbitrary numbers of bodies of arbitrary shapes experiencing multiple applied forces and intermittent contacts. In particular, the authors are concerned with the simulation of systems such as part feeders or mobile robots operating in realistic environments. Preliminary investigation of commercial dynamics software packages led them to the conclusion that they could use commercial sof… more

Date: August 1, 1998

Creator: Lafarge, R.A. & Lewis, C.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Documentation and analysis for packaging for the 100 B/C Packagings

The purpose of this Documentation and Analysis for Packaging (DAP) is to certify that the packaging system currently in use for the 100 B and C Area large scale excavation and remediation campaign, meets the intent of U.S. Department of Transportation(DOT) requirements for bulk packaging (49 CFR 173.427) of radioactive materials, up to and including low specific activity (LSA) I quantities of Class 7 material.

Date: July 22, 1996

Creator: Mccormick, W.A., Westinghouse Hanford

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Small sample properties of an adaptive filter with application to low volume statistical process control

In many manufacturing environments such as the nuclear weapons complex, emphasis has shifted from the regular production and delivery of large orders to infrequent small orders. However, the challenge to maintain the same high quality and reliability standards white building much smaller lot sizes remains. To meet this challenge, specific areas need more attention, including fast and on-target process start-up, low volume statistical process control, process characterization with small experime… more

Date: August 1, 1998

Creator: Crowder, S. V. & Eshleman, L.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Federal laboratories for the 21st century

Federal laboratories have successfully filled many roles for the public; however, as the 21st Century nears it is time to rethink and reevaluate how Federal laboratories can better support the public and identify new roles for this class of publicly-owned institutions. The productivity of the Federal laboratory system can be increased by making use of public outcome metrics, by benchmarking laboratories, by deploying innovative new governance models, by partnerships of Federal laboratories with… more

Date: April 1, 1998

Creator: Gover, J. & Huray, P.G.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

B plant standards/requirements identification document (S/RID)

This Standards/Requirements Identification Document (S/RID) set forth the Environmental Safety and Health (ES{ampersand}H) standards/requirements for the B Plant. This S/RID is applicable to the appropriate life cycle phases of design, construction,operation, and preparation for decommissioning. These standards/requirements are adequate to ensure the protection of the health and safety of workers, the public, and the environment.

Date: July 29, 1996

Creator: Maddox, B.S., Westinghouse Hanford

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

The use of hybrid-power sources for improved performance with pulsed loads

Electrical characteristics of hybrid power sources consisting of Li-ion cells and double layer capacitors were studied at 25 C and {minus}20 C. The cells were initially evaluated for pulse performance and then measured in hybrid modes of operation. Cells manufactured by Panasonic delivered pulses up to 3A and cells from A and T delivered 4A at 25 C before cell capacity dropped. Measured cell resistances were 0.15 ohms and 0.12 ohms, respectively. These measurements were repeated at {minus}20 C.… more

Date: April 1, 1998

Creator: Roth, E.P. & Nagasubramanian, G.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

A graph-based system for network-vulnerability analysis

This paper presents a graph-based approach to network vulnerability analysis. The method is flexible, allowing analysis of attacks from both outside and inside the network. It can analyze risks to a specific network asset, or examine the universe of possible consequences following a successful attack. The graph-based tool can identify the set of attack paths that have a high probability of success (or a low effort cost) for the attacker. The system could be used to test the effectiveness of mak… more

Date: June 1, 1998

Creator: Swiler, L. P. & Phillips, C.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Research universities for the 21st century

The `public outcomes` from research universities are educated students and research that extends the frontiers of knowledge. Measures of these `public outcomes` are inadequate to permit either research or education consumers to select research universities based on quantitative performance data. Research universities annually spend over $20 billion on research; 60% of these funds are provided by Federal sources. Federal funding for university research has recently grown at an annual rate near 6… more

Date: May 1, 1998

Creator: Gover, J. & Huray, P.G.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Waste encapsulation storage facility (WESF) standards/requirements identification document (S/RIDS)

This Standards/Requirements Identification Document (S/RID) sets forth the Environmental Safety and Health (ES{ampersand}H) standards/requirements for the Waste Encapsulation Storage Facility (WESF). This S/RID is applicable to the appropriate life cycle phases of design, construction, operation, and preparation for decommissioning. These standards/requirements are adequate to ensure the protection of the health and safety of workers, the public, and the environment.

Date: July 29, 1996

Creator: Maddox, B.S., Westinghouse Hanford

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Plutonium production story at the Hanford site: processes and facilities history

This document tells the history of the actual plutonium production process at the Hanford Site. It contains five major sections: Fuel Fabrication Processes, Irradiation of Nuclear Fuel, Spent Fuel Handling, Radiochemical Reprocessing of Irradiated Fuel, and Plutonium Finishing Operations. Within each section the story of the earliest operations is told, along with changes over time until the end of operations. Chemical and physical processes are described, along with the facilities where these … more

Date: June 20, 1996

Creator: Gerber, M.S., Westinghouse Hanford

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Implementation guidance for fiber optic loop sensors

Fiber optic loop sensors are a form of active security seal that can be used for detecting attempts to move or access secured items. This document is a guide that provides information about this type of sensor and suggests possible implementations.

Date: May 30, 1996

Creator: Swank, R.G.. Westinghouse Hanford

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

GNS-12 Packaging design criteria

The purpose of this Packaging Design Criteria (PDC) is to provide criteria for the Safety Analysis Report for Packaging (SARP)(Onsite). The SARP provides the evaluation to demonstrate that the onsite transportation safety criteria are met for the transport and storage of the 324 Building vitrified encapsulated material in the GNS-12 cask. In this application, the approved PDC provides a formal set of standards for the payload requirements, and guidance for the current cask transport configurati… more

Date: July 24, 1996

Creator: Clements, E.P., Westinghouse Hanford

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Contact Force Modeling Between Non Convex Objects Using a Nonlinear Damping Model

At Sandia National Laboratories, the authors are developing the ability to accurately predict motions for arbitrary numbers of bodies of arbitrary shapes experiencing multiple applied forces and intermittent contacts. In particular, they are concerned with the simulation of systems such as part feeders or mobile robots operating in realistic environments. Preliminary investigation of commercial dynamics software packages led us to the conclude that they could use a commercial code to provide ev… more

Date: June 1, 1998

Creator: Lafarge, R.A. & Lewis, C.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Energy and momentum conserving algorithms for rigid body contact

Energy-momentum conserving methods are developed for rigid body dynamics with contact. Because these methods are unconditionally stable, they are not time step dependent and, hence, are well suited for incorporation into structural mechanics finite element codes. Both penalty and Lagrange multiplier methods are developed herein and are the extension of the energy-momentum conserving integration schemes for rigid bodies given by Simo and Wong [1].

Date: April 9, 1998

Creator: Puso, Michael A. & Zywicz, Edward

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Study of benzene release from Savannah River in-tank precipitation process slurry simulant

At the Savannah River Site, the in-tank precipitation (ITP) process uses sodium tetraphenylborate (NaTPB) to precipitate radioactive cesium from alkaline wastes. During this process, potassium is also precipitated to form 4-wt% KTPB/CsTPB slurry. Residual NaTPB decomposes to form benzene, which is retained by the waste slurry. The retained benzene is also readily released from the waste during subsequent waste processing. While the release of benzene certainly poses flammability and toxicologic… more

Date: August 1, 1998

Creator: Rappe, K. G. & Gauglitz, P. A.

Item Type: Report

Partner: UNT Libraries Government Documents Department