Paper Abstract and Keywords |
Presentation |
2018-01-23 13:00
[Poster Presentation]
Mechanical properties on disruption of microcapsules by ultrasonic irradiation Shohei Yamanaka, Takashi Ikeno, Naoto Goda, Keisuke haraguchi, Ken Yamamoto (Kansai Univ.) US2017-84 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Recently, numerous studies on the inactivation of microorganisms in water have been reported. One such study deals with the disruption of microorganisms by ultrasonic waves. Thus far, we have conducted disruption experiments on different microalgae at different ultrasonic frequencies, and reported that the frequency characteristics differ for each species. Therefore, we observed that the main factor responsible for the disruption phenomenon is the mechanical resonance of the organisms themselves. In this study, we focused on the size of the sample alone. As a substitute for microalgae, melamine resin microcapsules having equal size and wide particles were used. The suspension was irradiated with ultrasonic waves at frequencies of 20 kHz, 400 kHz, 1.0 MHz, 2.3 MHz, 3.4 MHz, and 4.3 MHz. For the evaluation, particle size analysis and observation by SEM imaging were carried out, and the correlation between the ultrasonic frequency and particle size in the destruction phenomenon was examined. We observed that smaller size capsules were destroyed as the ultrasonic frequency increased. This is consistent with the conclusions of theoretical resonance analysis in microcapsules. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
microcapsule / cavitation / resonance / frequency charactaristic / particle size / / / |
Reference Info. |
IEICE Tech. Rep., vol. 117, no. 398, US2017-84, pp. 13-16, Jan. 2018. |
Paper # |
US2017-84 |
Date of Issue |
2018-01-16 (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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US2017-84 |
Conference Information |
Committee |
US EA |
Conference Date |
2018-01-23 - 2018-01-24 |
Place (in Japanese) |
(See Japanese page) |
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Paper Information |
Registration To |
US |
Conference Code |
2018-01-US-EA |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Mechanical properties on disruption of microcapsules by ultrasonic irradiation |
Sub Title (in English) |
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Keyword(1) |
microcapsule |
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cavitation |
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resonance |
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frequency charactaristic |
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particle size |
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1st Author's Name |
Shohei Yamanaka |
1st Author's Affiliation |
Kansai University (Kansai Univ.) |
2nd Author's Name |
Takashi Ikeno |
2nd Author's Affiliation |
Kansai University (Kansai Univ.) |
3rd Author's Name |
Naoto Goda |
3rd Author's Affiliation |
Kansai University (Kansai Univ.) |
4th Author's Name |
Keisuke haraguchi |
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Kansai University (Kansai Univ.) |
5th Author's Name |
Ken Yamamoto |
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Kansai University (Kansai Univ.) |
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Speaker |
Author-1 |
Date Time |
2018-01-23 13:00:00 |
Presentation Time |
120 minutes |
Registration for |
US |
Paper # |
US2017-84 |
Volume (vol) |
vol.117 |
Number (no) |
no.398 |
Page |
pp.13-16 |
#Pages |
4 |
Date of Issue |
2018-01-16 (US) |
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