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An example postclosure risk assessment using the potential Yucca Mountain Site

Description: The risk analysis described in this document was performed for the US Department of Energy`s (DOE) Office of Civilian Radioactive Waste Management (OCRWM) over a 2-year time period ending in June 1988. The objective of Pacific Northwest Laboratory`s (PNL) task was to demonstrate an integrated, though preliminary, modeling approach for estimating the postclosure risk associated with a geologic repository for the disposal of high-level nuclear waste. The modeling study used published characteriza… more
Date: May 1, 1992
Creator: Doctor, P. G.; Eslinger, P. W.; Elwood, D. M.; Engel, D. W.; Freshley, M. D.; Liebetrau, A. M. et al.
Partner: UNT Libraries Government Documents Department
open access

Performance of a fully parallel dense real symmetric eigensolver in quantum chemistry applications

Description: The parallel performance of a dense, standard and generalized, real, symmetric eigensolver based on bisection for eigenvalues and repeated inverse iteration and reorthogonalization for eigenvectors is described. The performance of this solver, called PeIGS, is given for two test problems and for three ``real-world`` quantum chemistry applications: SCF-Hartree-Fock, density functional theory,and Moeller-Plesset theory. The distinguishing feature of the repeated inverse iteration and orthogonaliz… more
Date: April 1, 1995
Creator: Fann, G.I.; Littlefield, R.J. & Elwood, D.M.
Partner: UNT Libraries Government Documents Department
open access

ElGENANALYSlS OF LARGE ELECTRIC POWER SYSTEMS

Description: Modern electric power systems are large and complicated, and, in many regions, the generation and transmission systems are operating near their limits. Eigenanalysis is one of the tools used to analyze the behavior of these systems. Standard eigenvalue methods require that simplified models be used for these analyses; however, these simplified models do not adequately model all of the characteristics of large power systems. Thus, new eigenanalysis methods that can analyze detailed power system … more
Date: February 1, 1991
Creator: Elwood, D. M.
Partner: UNT Libraries Government Documents Department
open access

Stability analysis of large electric power systems

Description: Modern electric power systems are large and complicated, and, in many regions of the world, the generation and transmission systems are operating near their limits. Ensuring the reliable operation of the power system requires engineers to study the response of the system to various disturbances. The responses to large disturbances are examined by numerically solving the nonlinear differential-algebraic equations describing the power system. The response to small disturbances is typically studie… more
Date: January 1, 1993
Creator: Elwood, D.M.
Partner: UNT Libraries Government Documents Department
open access

Stability analysis of large electric power systems

Description: Modern electric power systems are large and complicated, and, in many regions of the world, the generation and transmission systems are operating near their limits. Ensuring the reliable operation of the power system requires engineers to study the response of the system to various disturbances. The responses to large disturbances are examined by numerically solving the nonlinear differential-algebraic equations describing the power system. The response to small disturbances is typically studie… more
Date: January 1, 1993
Creator: Elwood, D. M.
Partner: UNT Libraries Government Documents Department
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