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COLOR IMAGE QUANTIZATION WITH EVOLUTIONARY PROGRAMMING
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作者 LIU Wei(刘伟) +1 位作者 WANG lei(王磊) 《Journal of Shanghai Jiaotong university(Science)》 EI 2002年第1期50-53,共4页
An evolutionary programming based algorithm was proposed for color image quantization. A novel hybrid mutation operator was disigned to improve the quantization quality, and a stochastic sampling scheme was also prese... An evolutionary programming based algorithm was proposed for color image quantization. A novel hybrid mutation operator was disigned to improve the quantization quality, and a stochastic sampling scheme was also presented for saving the run time. The experimental results demonstrate the superior performance of the proposed algorithm in comparison with the GA based algorithm. 展开更多
关键词 EVOLUTIONARY PROGRAMMING COLOR IMAGE QUANTIZATION COLOR HISTOGRAM
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Dynamic Performance of On-off Operation for a Small Scale Direct Fired Absorption Chiller
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作者 Wang lei(王磊) +1 位作者 Lu Zhen(陆震) 《Journal of Donghua University(English Edition)》 EI CAS 2001年第1期46-50,共5页
A part load operation by turning the burner on and off intermittently is effective for a small scale direct fired absorption chiller. The dynamic performance of the system has been investigated. The relationship betwe... A part load operation by turning the burner on and off intermittently is effective for a small scale direct fired absorption chiller. The dynamic performance of the system has been investigated. The relationship between pressure, temperature and concentration of the lithium bromide solution have been analyzed. The result obtained indicates that the pressure of the high pressure generator and the temperature of the exhausted smoke are the most sensitive parameters. It is also found that the transition time from a full load to a part load condition is quite long, and part load relative cooling capacity is almost near the intermittent running time ratio and oil consumption ratio. 展开更多
关键词 DIRECT fired ABSORPTION chiller part load DYNAMIC performance.
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