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This research was conducted using simulation optimization methods to solve the bottleneck problem in manufacturing process, aiming at optimize the system performance. The Petri nets is used to describe the production process under Push/Conwip control mode for a typical JIT flexible manufacturing system. The ExSpect simulation platform is used to analog JIT flexible manufacturing system production...
In order to alleviate the growing energy contradiction and maximize use of renewable energy, microgrid is experiencing a rapid development as a new means of power system. The master inverter in microgrid should operate in grid-connected mode and island mode. A seamless transferring control method was presented in this paper, two different control loops were designed for respective operation modes,...
In this paper, combined with merits of a user-centric PGP trust model in PKI technology and SPKI authorization certificate, the trust authority model in a P2P distributed environment design is realized according to the characteristics of P2P networks and P2P network service model.
Receiver operating characteristics (ROC) graphs are useful for organizing binary classifiers and visualizing their performance. But it doesn't work on the corresponding multi-class classifiers problem. We analyse a series of multi-class classifiers and present a new algorithm based on its ROC parameters in which the goal is to minimise the cost of Q(Q - 1) misclassification. Empirical results suggest...
Intelligent Manufacturing Systems requires advanced and efficient information technologies and tools in order to achieve value creation in global markets. Radio frequency identification (RFID) is a novel information technology that helps companies to monitor and control the manufacturing process in time through the collection of manufacturing data in the job-shop. In this paper, we present a real-time...
The bi-directional convergence ant colony optimization can effectively solve job-shop scheduling, but it often fall into local optimization result. While the simulated annealing has some characteristics can make the convergence process jump out of the local optimum. In this paper an application of the simulated annealing to be integrated into the bi-directional convergence ant colony optimization...
Jobshop scheduling is a typical NP hard problem. In the distributed manufacturing environment, it becomes a more intractable one with the characters of distributed object, multiple target and strong dynamic. A novel distribution jobshop scheduling method based on multi-agent mechanism and genetic algorithm is presented. A distributed scheduling system framework, which composed of several jobshop agents,...
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