introduction: scattered photon is one of the main defects that degrade the quality and quantitative accuracy of nuclear medicine images. accurate estimation of scatter in projection data of spect is computationally extremely demanding for activity distribution in uniform and non-uniform dense media. methods: the objective of this paper is to develop and validate a scatter correction technique t...

We present a novel simulation platform called Optimization, Simulation, and Forecasting (OSF) for the domain of manufacturing and logistics supply-chain systems. It supports composition of DEVS, Linear Program (LP), and forecast models using an extended Knowledge Interchange Broker (KIB). Models developed in DEVS-Suite simulator, OPL-Studio optimization, and a heuristic Inventory Strategy Forec...

Several numerical approaches have been proposed in the literature to simulate the behavior of modern blast furnaces: finite volume methods, data-mining models, heat and mass balance models, and classical thermodynamic simulations. Despite this, there is actually no efficient method for evaluating quickly optimal operating parameters of a blast furnace as a function of the iron ore composition, ...

We describe a software for cell physiology simulation, which uses dynamic graphs andtheir composition and decomposition operations for modelling the multiagent systems and theirbehaviours.

Service composition, which enables users to construct complex services from atomic services, is an essential feature for the usability of Mobile Ad hoc Networks (MANETs). Service composition in MANETs should be fault-tolerant and distributed. Efforts in this area are rare and sounds not meet the requirements very well. In this paper, we present a distributed Fault-Tolerant Service Composition P...

Many works have been carried out to find the efficient algorithms for QoS-aware service composition in recent years. Nevertheless, on one hand, some of these works only consider the local QoS attributes in Web services composition; on the other hand, some ideas derived from QoS selection algorithms for network routing are directly applied in service composition without any adaption. A service c...

Web services are widely used thanks to their features of universal interoperability between software assets, platform independent and loose-coupled. Web services composition is one of the most challenging topics in service computing area. In this paper, an approach based on High Level Petri-Net model as dynamic configuration schema of web services composition is proposed to achieve self adaptat...

Dynamic service composition represents a key feature for service-based applications operating in dynamic and large scale network environments, as it allows leveraging the variety of offered services, and to cope with their volatility. However, the high number of services and the lack of central control pose a significant challenge for the scalability and effectiveness of the composition process...

Composability in Modeling and Simulation community which can be defined as the capability to select and assemble a simulation model out of predefined simulation models or components is an important challenge due to the cost and time spent on developing a simulation model. Base Object Model, BOM, is a new standard for developing simulation components and making reusability and composability of c...