C. Y. LiuJ. Y. YenY. Y. ChenW. L. LinYUNG-YAW CHEN2018-09-102018-09-102002-01http://scholars.lib.ntu.edu.tw/handle/123456789/299106A Heating System with Sector-vortex Phased Array Ultrasound Transducers for Thermal Surgeryconference paper