邮资票品和集邮品的分类与编码规则 the classification and the principle of coding of postage item and pgilatelic item
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Chapter five studies the new method for faults diagnosis of rotating machine based on som and hmm through the integrated information of multi - sensor . first self organization clustering method for high dimension data is proposed , and then dhmm for faults diagnosis is designed by the low dimension features . experiments verified that the method is effective 第五章:利用som神经网络对多传感器的振动信息特征进行降维、压缩与编码,首次提出了基于多通道振动信息融合的hmm故障诊断方法,拓展了监测对象的观测范围,从而能够对旋转机械的整体运行状态做出综合识别,并对提出的方法进行了实验研究。