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Paper Abstract and Keywords
Presentation 2012-08-27 11:20
Sonoluminescence and bubble dynamics in viscous liquids
Pak-Kon Choi, Yuuta Takeuchi, Takaaki Yamada (Meiji Univ.) US2012-35
Abstract (in Japanese) (See Japanese page) 
(in English) Multibubble sonoluminescence pulses of Na and continuum emissions were measured from NaCl-ethylene glycol solution saturated with Xe at 28 kHz. The Na emission consisted of multiple-peak pulses and single pulses. The intrinsic pulse width estimated from single pulses was 0.37 ns, which differs from 10-165 ns obtained by previous work. High-speed shadowgraphs of bubble dynamics and high-speed movies (32,000 fps) of sonoluminescence were observed. The observations suggest that the multiple-peak pulse is due to the superposition of single peaks resulting from bubbles fragmented from a characteristic bubble which repeats the fragmentation and coalescence.
Characteristic spatial distribution of sonoluminescence was observed in aqueous solution of glycerol using a horn-type transducer. The distribution of sonoluminescence exhibited a sphere and a wedge shape at low and high acoustic pressures, respectively. The results of acoustic emission were used to interpret the difference in bubble dynamics in water and viscous liquid.
Keyword (in Japanese) (See Japanese page) 
(in English) sonoluminescence / Na emission / viscous liquid / bubble dynamics / ethylene glycol / glycerol / /  
Reference Info. IEICE Tech. Rep., vol. 112, no. 186, US2012-35, pp. 9-12, Aug. 2012.
Paper # US2012-35 
Date of Issue 2012-08-20 (US) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 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 2012-08-27 - 2012-08-28 
Place (in Japanese) (See Japanese page) 
Place (in English) Pukyong National University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General, Underwater Acoustics (Co-Organization：The Marine Acoustics Society of Japan, Youngnam Chapter of The Acoustical Society of Korea) 
Paper Information
Registration To US 
Conference Code 2012-08-US 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Sonoluminescence and bubble dynamics in viscous liquids 
Sub Title (in English)  
Keyword(1) sonoluminescence  
Keyword(2) Na emission  
Keyword(3) viscous liquid  
Keyword(4) bubble dynamics  
Keyword(5) ethylene glycol  
Keyword(6) glycerol  
Keyword(7)  
Keyword(8)  
1st Author's Name Pak-Kon Choi  
1st Author's Affiliation Department of physics, Meiji University (Meiji Univ.)
2nd Author's Name Yuuta Takeuchi  
2nd Author's Affiliation Department of physics, Meiji University (Meiji Univ.)
3rd Author's Name Takaaki Yamada  
3rd Author's Affiliation Department of physics, Meiji University (Meiji Univ.)
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Speaker Author-1 
Date Time 2012-08-27 11:20:00 
Presentation Time 20 minutes 
Registration for US 
Paper # US2012-35 
Volume (vol) vol.112 
Number (no) no.186 
Page pp.9-12 
#Pages 4 
Date of Issue 2012-08-20 (US) 

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