Infrastructures are networks of highly complex systems that can be classified as socio-technical organisms with hidden consciousness. The hidden consciousness of these types of systems lies beyond their definition. Although these systems are structurally ...

Training war fighters how to maneuver a submarine is very important, but the use of real submarines in such training is expensive and hindered by regional and temporal limitations. Modeling and simulation (M&S) can be a good alternative to costly training. ...

The random waypoint model is a commonly used mobility model for simulations of wireless communication networks. By giving a formal description of this model in terms of a discrete-time stochastic process, we investigate some of its fundamental stochastic ...

In this paper, we investigate the adoption of agent-based modeling and simulation to study the interdependencies in critical infrastructures. We propose an approach to model critical infrastructures through agents as well as some guidelines to simulate ...

As the use of computer simulation grows in a variety of science and engineering fields, the quality of random variate generators becomes increasingly important. Unfortunately, a number of standard implementations are grossly inadequate and exhibit poor ...

Providing Quality of Service (QoS) for sophisticated and QoS-constraining applications (e.g. video-based applications, multimedia services, and high speed data services) and ensuring continuous connectivity for universal mobile stations (UMS) in heterogeneous ...

Modeling and simulation becomes crucial in analyzing dynamic system behavior. Many formalisms and methods are introduced in order to improve this process. The effort is twofold; a) reach more realistic models and results, b) obtain "simplified, flexible" ...

Interest in complex integrated digital or virtual human modeling has seen a significant increase over the last decade. Coincident with that increased interest, Oak Ridge National Laboratory (ORNL) initiated the development of a human simulation tool, ...

The aim of the QosCosGrid project is to bring supercomputer-like performance and structure to cross-cluster computations. To support parallel complex systems simulations, QosCosGrid provides six reusable templates that may be instantiated with simulation-specific ...

The combined effect of the liquid flow slip and wall heat flux on the flow in a microchannel between two parallel plates was investigated. The pressure-driven flow and the electroosmosis were taken into account. To find the electric potential, the flow ...

Scheduling decisions in hospitals are often taken in a decentralized way. This means that different specialized hospital units decide autonomously on patient admissions or operating room schedules. In this paper we present an agent-based model for the ...

In 1990 the Intergovernmental Panel on Climate Change (IPCC) concluded that the accumulation of greenhouse gases in the atmosphere would very likely affect the earth's climate. A 2007 IPCC report has removed doubt - conclusions are now based on observed ...

In this paper, we propose and study an auction model for resource management in Grids. We propose and investigate by simulation three types of auction-based resource-allocation protocols: (i) first-price auction protocol; (ii) Vickrey auction ...

In recent years instruments used to dialog with both the physical and social world have become faster and more accurate, even able to reproduce experiments. The possibility to record detected data and to exchange information have greatly increased, revolutionizing ...

The ambient intelligence scenario depicts electronic environments that are sensitive and responsive to the presence of people. The aim of this kind of system is not necessarily to provide some form of electronic service to its users, but also to enhance ...

Silicon-on-insulator (SOI) SRAMs have different characteristics from those fabricated in traditional bulk silicon. Fault models and sensitivities must be considered when testing for SOI manufacturing defects. Circuit details of SOI SRAMs that relate ...

The explosive growth of wireless communications, combined with the rapid advances in high-performance portable computing, are driving the microelectronics industry toward the development of a variety of multi-functional, low-cost, yet high-performance, ...

Simulation plays an important role in the verification of mobile wireless networking protocols. Recently, several cities have either begun deploying or are completing plans to deploy large-scale urban mesh networks (LUMNets). On the other hand, the networking ...

Modeling an experimental system often results in a number of alternative models that are all justified by the available experimental data. To discriminate among these models, additional experiments are needed. Existing methods for the selection of discriminatory ...