Rotating machine fault detecting is the key technology for ensure that they can run health and security. And the simple and practice methods based on envelope employed in the fault detecting. In this paper, a vibration signal envelope extract method based on wavelet was proposed. In this proposed, the wavelet used to filter the noise which embedded the… (More)
Fuuy ideals were discussed in BCWBCI-algebras, but in BCH-algebras. In this paper we introduce notions of f i z q ideals in BCH-algebras and discuss their properties in BCH-algebras.