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为实现齿轮箱故障特征提取，提出一种基于集成经验模态分解（EEMD）和乔-威廉姆斯分布（CWD）的齿轮箱振动信号特征的提取方法。对现场采集的振动信号进行EEMD分解，再对分解得到的固有模态函数（IMF）分量依照峭度准则进行排序，选取峭度指标较大的IMF分量进行CWD分析，最终得到信号的CWD.该方法可以有效抑制由于干扰项引起的频率混叠和干扰问题，有助于将原始信号在时间历程、频率成分和幅值大小3个方...
Determination of cultural and biometrical characters of Fusarium species isolated from plant material harvested from coffee (coffea canephora Pierre.) infected with CWD in Democratic Republic of Congo
CWD Robusta coffee Fusarium xylarioides Fusarium lateritium Fusarium solani
2011/1/13
The Coffee Wilt Disease (CWD) is vascular disease due to Gibberella (Fusarium) xylarioides has decimated coffee plantations in the Democratic Republic of Congo. The authors determined the characters o...