PERFORMANCESWhen a wave-breaking jet plunges onto the forward wave trough, three-dimensional organized free-surface flows with longitudinal counter-rotating vortices are organized at the plunging location. The finger jets are induced through free-surface entrainment by the vortices beneath the surface. ...
百度试题 结果1 题目1 Which type of wave is light? A Electromagnetic B Longitudinal C Sound D Water Your answer A 相关知识点: 试题来源: 解析 A 反馈 收藏
Traveling Wave Solutions of the One-Dimensional Boussinesq Paradigm Equation Slightly generalized this equation appears also in the theory of longitudinal vibrations of rods and in the continuum limit for lattices. It is well known... VM Vassilev,PA Djondjorov,MT Hadzhilazova,... - 《Aip Confe...
24 Polarisation is a phenomenon associated with a certain type of wave.Which condition must be fulfilled if a wave is to be polarised? D A It must be a light wave. B It must be a longitudinal wave. C It must be a radio wave. D It must be a transverse wave. 相关知识点: 试题...
专利名称：LONGITUDINAL WAVE GENERATING-TYPE ULTRASONIC PROBE 发明人：MIYAJIMA TAKESHI 申请号：JP7398591 申请日：19910313 公开号：JPH04285853A 公开日：19921009 专利内容由知识产权出版社提供 摘要：PURPOSE:To correctly measure the sound velocity and the attenuation ratio of longitudinal waves by using a ...
We found two sets of the coupled longitudinal waves which are dispersive in nature and experience attenuation. In addition to the coupled waves, there also exists one independent vertically shear‐type wave which is dispersive but experiences no attenuation. All these waves are found to be ...
A standing wave is formed by superposition of longitudinal and torsional modes. The ... C Li,CY Lu,YX Ma,... - Journal of Zhejiang University-SCIENCE A 被引量: 0发表: 2018年 A novel type of hybrid ultrasonic motor using longitudinal and torsional vibration modes with side panels A novel...
A new standing-wave-type linear ultrasonic motor based on in-plane modes This paper presents a new standing-wave-type linear ultrasonic motor using combination of the first longitudinal and the second bending modes. Two piezoele... Y Shi,C Zhao - 《Ultrasonics》 被引量: 93发表: 2011年 A ...
The latter involve the sequent depths, the coordinates of the wave maximum, the plunging point, the lengths of both the surface roller and the jump, and the longitudinal extension of the bottom separation zone. All quantities are presented in terms of inflow parameters, such that immediate ...
A novel type of hybrid ultrasonic motor using longitudinal and torsional vibration modes is presented, which has four side panels uniformly distributed along the circumference of the stator cylinder. There is rectangle piezoelectric ceramics (PZTs) based on d(31) effect bonded on both sides of each...