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This paper introduces a new hybrid control policy called BCK policy (the superposition of Base Stock, CONWIP, and Kanban). According to BCK policy, the wheel trim production line with four stages in series is modeled by Petri net. And the model is simulated by Arena simulation software package version 7.0. The performance of BCK policy against other policies is compared through simulation experiments...
Considering the intermittency of turbulence, the white noise as the stochastic driving term in time-varying stochastic turbulence model, which was supposed by Curtis R. Vogel, is replaced by a Levy random process. Phase screens can be obtained by solving the stochastic partial differential equation (PDE), and the corresponding point spread function (PSF) is also offered. These results describe that...
A new method for ranking fuzzy numbers based on the cut set is proposed, and some of its desirable properties are studied. Firstly, the area of a triangle, which is determined by the cut set of fuzzy numbers, is employed as the measure of cut set (interval). A index and algorithm of ranking fuzzy numbers are constructed using the integral of this measure. Particularly, for trapezoid fuzzy numbers...
Cross platform debugging can make the software debugging and hardware platform developing work simultaneity in embedded system development, which accelerates the development lifecycle dramatically. Reverse execution can run program backward to historic points, may provide programmers with a useful approach of fast locating the cause of the program failure. In this paper, we propose a reversible debugging...
The purpose of this paper is to introduce a two-person zero-sum matrix game in which the payoffs are characterized as fuzzy variables. Based on "a"-optimistic and "a" -pessimistic value of fuzzy variable, two new kinds of minimax equilibrium strategies are provided and two-person zero-sum matrix game which is equivalence to appropriate pair of fuzzy linear programming models is...
Handoff scheme provides continuous and seamless transfer when the mobile node moves around the overlay area of wireless networks. It is not practical to use the traditional Received Signal Strength Indication (RSSI) based methods to decide when to process handoff in Collaborative Virtual Environment (CVE), because the probe delay occupies most of the handoff delay time. In this paper, we propose a...
The conventional passive filtering has been outdated since it detune with age, this may affect its filtering performance and also cause resonance problems, active power filters (APFs) are attractive solutions to solve harmonic-related power quality problems due to the development of power semiconductors, control theory and digital signal processors (DSP), and they have become the first choice for...
The supply function equilibrium model has been used widely to study strategic behavior and market power in electricity markets. However, theoretically there exists a continuum of supply function equilibria, which limits the predictive value of this model. We refine the supply function equilibria by a stability analysis. The local behavior of supply function equilibrium under small perturbations in...
An variable precision rough set (RS) knowledge acquisition based on discrete particle swarm optimization (DPSO-VPRS) are proposed to solve rough set is lack of the ability of anti-jamming, which is used the information entropy is considered as a suitable function in discrete particle swarm algorithm and the attribute dependent degree of variable precision rough set is optimized, and make the classification...
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