Yudong Xie

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Parallel algorithms, such as the ant colony algorithm, take a long time when solving large-scale problems. In this paper, the MAX-MIN Ant System algorithm (MMAS) is parallelized to solve Traveling Salesman Problem (TSP) based on a Spark cloud computing platform. We combine MMAS with Spark MapReduce to execute the path building and the pheromone operation in(More)
Whether an electro-hydraulic control valve for the mixed-gas pressure control in a combined cycle power plant (CCPP) of a steel mill meets the challenge of the gas turbine depends on its dynamic response. To obtain the dynamic characteristics of the electro-hydraulic control valve before it is manufactured, a dynamic design approach based on the physical(More)
The pressure pulsation of the mixed gas is the major reason to result in the abnormal stop of the generating equipments in a combined cycle power plant (CCPP) of a steel mill. An active control method for the attenuation of the pressure pulsation in large-flow mixed-gas pipe was presented. The pulsation mechanism of the mixed-gas pressure was discussed. A(More)
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