In this paper, we present our approach to introduce dynamism support to simulation environments, which adopts a Discrete Event System Specification (DEVS)-based modeling and simulation approach and builds upon previous work on Simulation Modeling Architecture (SiMA), a DEVS-based simulation framework developed at TUBITAK UEKAE. In the relevant literature there are already proposed solutions to ...

This paper presents Timed Quorum System (TQS), a quorum system for large-scale and dynamic systems. TQS provides guarantees that two quorums, accessed at instances of time that are close together, intersect with high probability. We present an algorithm that implements TQS at its core and that provides operations that respect atomicity with high probability. This TQS implementation has quorums ...

Many educational sites are static and rarely updated, diminishing the dynamism of the Web. An online learning system should be adjustable, expandable and regularly updated, preferably by educational staff without the direct intervention of computer experts, reflecting the dynamic character of education. Το achieve this aim, we propose a system based on three roles: Administrator, Educator and L...

Today rapidly growing economies depend more on the creation, acquisition, distribution, and use of knowledge. As such, strategies for enhancing research and innovation capabilities have come to occupy a more important position in many developing nations, including China. Already the leading production center, and often seen as China’s economic locomotive, Shanghai is striving aggressively to re...

In the past years, real-time embedded systems became more and more complex. From the user perspective, these systems have stringent requirements regarding size, performance and power consumption, and due to business competition, their time-to-market is a crucial factor. Therefore, much work has been done in developing design methodologies for embedded systems to cope with these tight requiremen...

1 This work is supported in part by AFOSR (F49620-98-1-0217) and NSF (CCR-9988320). Abstract. In the areas of application integration, mobility, and agent technology, dynamism is an increasingly desirable quality. However, deploying dynamism is problematic due to constraints on and limitations of the applications and middleware used in such distributed systems. In order to realize dynamism in t...

Organizations are supposed to be systems and consequently require defining the notion of equilibrium within. However, organizations comprise people and unavoidably entail their irrational aspects. Then, the question is what is the organizational equilibrium and equilibrating mechanisms considering these aspects. Hence, some arguments are provided here to conceptualize human unconsciousness, irr...