optoelectronics for dense interconnection networks. In the context of building experimental systems, his work also includes a significant effort in the development of new design tools for the modeling and simulation of these systems. Dr. Chiarulli holds patents in computer and related optical and optoelectronic hardware. His current research work is in the areas of chip-level optoelectronic interconnections, optical-electronic-mechanical multidomain computer-aided design, optical memory systems, robotics, and voice input/speech output interfaces for embedded system applications. He received his Ph.D. in computer science from Louisiana State University.

DAVID E. CROW, a member of the National Academy of Engineering, is retired senior vice president of engineering at Pratt and Whitney Aircraft Engine Company. He is also currently a professor of mechanical engineering at the University of Connecticut. At Pratt and Whitney he was influential in design, development, testing, and manufacturing in support of a full line of engines for aerospace and industrial applications. Dr. Crow was involved with products that include high-thrust turbofans for large commercial and military aircraft, turboprops and small turbofans for regional and corporate aircraft and helicopters, booster engines and upper-stage propulsion systems for advanced launch vehicles, turbopumps for the space shuttle, and industrial engines for land-based power generation. His involvement included sophisticated computer modeling and standards work to bring constant improvements in the performance and reliability of the company’s products while at the same time reducing noise and emissions.

MARJORIE ERICKSON is an expert both in the development of physics-based models of material behavior in the prediction of material failure and in the performing of risk assessments. Dr. Erickson is the president of Phoenix Engineering Associates, Inc., and an adjunct professor of mechanical engineering at the University of Maryland. She conducts research and consults with industry regarding fracture safety assessment methodology for steel and other alloy components. She provides these services in the areas of assessing the integrity and durability of civil, mechanical, and marine structures fabricated from metallic materials. Specific work that Dr. Erickson has performed includes developing and using integrated, predictive models of material behavior to assess the current status and predict the remaining safe life, under known or expected operating and accident-event conditions, for nuclear pressure vessels and other alloy applications, including fracture safety assessment and life extension of aging aircraft and pipelines. Dr. Erickson received her Ph.D. in materials science from the University of Virginia.

GEORGE T. GRAY III is a Laboratory Fellow and staff member in the dynamic properties and constitutive modeling team in the Materials Science Division of the Los Alamos National Laboratory (LANL). He came to LANL after holding a 3-year visiting scholar position at the Technical University of Hamburg-Harburg in Hamburg, Germany, having received his Ph.D. in materials science in 1981 from Carnegie Mellon University. As a staff member (1985-1987) and later team leader (1987-2003) in the Dynamic Materials Properties and Constitutive Modeling Section in the Structure/Property Relations Group (MST-8) at LANL, Dr. Gray has directed a research team working on investigations of the dynamic response of materials. He conducts fundamental, applied, and focused programmatic research on materials and structures, in particular in response to high-strain-rate and shock deformation. His research is focused on experimental and modeling studies of substructure evolution and mechanical response of materials. These constitutive and damage models are used in engineering computer codes to support large-scale finite element modeling simulations of structures including those involved in national defense (Department of Energy, Department of Defense, Defense Advanced Research Projects Agency); industry (GM, Ford, Chrysler, and Bettis); foreign object damage; and manufacturing. Dr.

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