Abstract: This paper proposed a new method of feature extraction for vibration signals of asynchronous motors based on quaternion K-L ... and dominated that it could be well applicable for ...

Abstract: A rotary ultrasonic motor using bending vibration transducers is proposed. In each transducer, two orthogonal bending vibrations are superimposed and an elliptical trajectory is generated at ...

How to Make a Mobile Fan at Home Using smartphone vibration motor Donald Trump wants his new Air Force One as soon as possible. That could be an issue Contractors, buyers left in limbo after ...