Process based model: Pros Cons Stability of the system. If a process goes down the only effect would be the failure of the client being served by that process without any other effect on the system 1creating and ending processes consumes a lot of time and overloads the web server 2the memory requirements grow larger as each process requires its own space 3a huge overhead of context switching be...

A model for blackouts in electric power transmission systems is implemented and studied in simple networks with a regular structure. The model describes load demand and network improvements evolving on a slow timescale as well as the fast dynamics of cascading overloads and outages. The model dynamics are demonstrated on the simple power system networks. The dynamics depend weakly on the networ...

Important classical scheduling theory results for real time computing are identi ed Im plications of these results from the perspective of a real time systems designer are discussed Uni processor and multiprocessor results are addressed as well as important issues such as future release times precedence constraints shared resources task value overloads static versus dynamic scheduling preemptio...

Multi-agent systems are subject to performance bottlenecks in cases where agents cannot perform tasks by themselves due to insufficient resources. Solutions to such problems include passing tasks to others or agent migration to remote hosts. We propose agent cloning as a more comprehensive approach to the problem of local agent overloads. According to our paradigm, agents may clone, pass tasks ...

In this paper we study the Motter-Lai model of cascading failures induced by overloads in both isotropic and anisotropic spatial networks, generated placing nodes a square lattice using various distributions link lengths angles. Anisotropy has not been earlier considered is real feature that may affect failures. This could reflect existence preferred direction which given attribute system manif...

A number of studies (mainly in vitro and in vivo animal models) have examined the interaction of trace elements with DNA. Normal dietary levels of various trace elements are required to prevent the occurrence of oxidative damage, and deficiency may increase susceptibility. Conversely, overload of some trace elements, including copper and iron, has been demonstrated to result in adverse effects....

Networked application performance and security are closely intertwined, which poses unique challenges when addressing the dynamic needs of business. A balance must be struck between the often conflicting demands of end users, the CTO (chief technology officer), information security management and of course, the budget. Using a holistic approach, IT organizations can keep networks running smooth...