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The existing methods to evaluate reliability of phased mission system with multi-mode failures are all very complex. In order to solve this problem, a simulation model based on CPN is proposed in this paper. Firstly, A CPN model of components with multi-mode failures is proposed; secondly, the CPN models to deal with dependencies are presented. On this basis, the phase reliability CPN model and mission...
Phased-mission system is a kind of broad exist complex system. It has important reference value to research the reliability optimization of this kind of system. For reliability optimization problem of standby phased-mission systems, a method adopts modular fault tree and modular BDD to describe structure of standby system is proposed. The reliability compute method of standby sub-system in phased-mission...
An improved algorithm was proposed and applied to the fast and exact boundary extraction of high resolution PCB images. Firstly, two problems in the original algorithm were mentioned and solved respectively by introducing splitting points and merging points and by designing an extended data structure. Secondly, the MMX/SSE instructions were easily introduced to optimize the run-length encoding procedure...
Capson proposed a run-based boundary extraction algorithm which can extract boundaries in one raster scan, the algorithm is very suitable for pipeline and parallel processing and can achieve high performance, but it has two problems which limit its application, one is the distortion at concave potion of the boundaries, and another is that it dose not address how to produce the detailed boundaries...
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