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Paper Abstract and Keywords
Presentation 2018-10-04 10:00
Investigation of Capillary Wave in Ultrasonic Atomization Produced by Focused Ultrasound Using Highspeed Camera
Kenki Tsukahara, Daisaku Mashiko, Shin Yoshizawa (Tohoku Univ.) US2018-49
Abstract (in Japanese) (See Japanese page) 
(in English) When ultrasound generated in liquid is focused around the interface between the liquid and air, the liquid is lifted by ultrasound, and a drop chain emerges from the interface. After the emergence of a drop chain, sometimes minute droplets are scattered from the surface of it. The phenomenon is called ultrasonic atomization. Two hypotheses of the atomization mechanism have been proposed; one is contribution of the oscillation and collapse of cavitation bubbles, and the other is capillary wave caused by instability of the surface. In this paper, highspeed photographs of drop chains induced by ultrasound at 1 - 3 MHz were taken, and the oscillation of capillary wave before the atomization was analyzed.
Keyword (in Japanese) (See Japanese page) 
(in English) Focused Ultrasound / Ultrasonic Atomization / Capillary Wave / / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 229, US2018-49, pp. 1-6, Oct. 2018.
Paper # US2018-49 
Date of Issue 2018-09-27 (US) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee US  
Conference Date 2018-10-04 - 2018-10-04 
Place (in Japanese) (See Japanese page) 
Place (in English)  
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Paper Information
Registration To US 
Conference Code 2018-10-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Investigation of Capillary Wave in Ultrasonic Atomization Produced by Focused Ultrasound Using Highspeed Camera 
Sub Title (in English)  
Keyword(1) Focused Ultrasound  
Keyword(2) Ultrasonic Atomization  
Keyword(3) Capillary Wave  
1st Author's Name Kenki Tsukahara  
1st Author's Affiliation Tohoku University (Tohoku Univ.)
2nd Author's Name Daisaku Mashiko  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Shin Yoshizawa  
3rd Author's Affiliation Tohoku University (Tohoku Univ.)
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Speaker Author-1 
Date Time 2018-10-04 10:00:00 
Presentation Time 25 minutes 
Registration for US 
Paper # US2018-49 
Volume (vol) vol.118 
Number (no) no.229 
Page pp.1-6 
Date of Issue 2018-09-27 (US) 

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