The paper presents a new information technology approach for simulation based systems capable of serving multiple purposes by composition of components. Based on the High Level Architecture for Modeling and Simulation (HLA) software architecture for distributed simulation systems, this approach takes into account the need for flexibility, re-usability and interoperability in order to be applica...

We present an empirical model for the electron energy relaxation time. It is based on Monte-Carlo simulation results, and is applicable to all relevant diamond and zinc-blende structure semiconductors. The energy relaxation times are expressed as a function of the carrier and lattice temperatures and, in the case of semiconductor alloys, the material composition. keywords: energy relaxation tim...

This paper presents two different aspects considering a co-simulation of smart grid scenarios. First considers representing the control strategy in a separate discrete event simulation developed in a multi-agent platform. This study investigates the design and implementation of such a simulator. Special attention is given to timing issues presenting time variant and time invariant models. The s...

We put forth a multiple representation approach to deriving the behavioral model of a digital circuit automatically from its structure and the behavioral simulation models of its components. One representation supports tempera) reasoning for composition and simplification, another supports simulation, and a third helps to partition the translation problem. A working prototype, FUNSTRUX, is desc...

A microscopic physical description of the glassy state long has eluded even the top scientists in condensed matter physics because of the complicated noncrystalline nature of glass structure. Currently, many theorists turn to molecular dynamics or other atomistic simulations to determine the structure of various glass compositions. However, although available computing power has increased expon...

We outline Ensemble, a design and implementation methodology for composing message passing (MP) applications from program components. We also outline specification composition, directly associated with application composition. We present the integration of specification and implementation of program development. We particularly elaborate on testing and debugging of MP applications based on the ...

A mechanistic model for the micro-endmilling process is developed that explicitly accounts for the different phases while machining heterogeneous materials. It is shown that frequencies in the cutting force signal higher than those that can be explained by the kinematics of the process can be explained by considering the multiple phases in the material. Experiments are performed on two composit...