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Paper Abstract and Keywords
Presentation 2007-12-13 13:25
Fractal analysis of VHF electromagnetic noise associated with the Miyagi prefecture offshore earthquake
Naoyuki Yonaiguchi (Univ. Electro-Comms), Shigeru Masuda (TOHKnet), Yuichi Ida, Masashi Hayakawa (Univ. Electro-Comms) AP2007-116
Abstract (in Japanese) (See Japanese page) 
(in English) The VHF electromagnetic noise intensity data at several stations in the Tohoku area of Japan during the period of a rather large earthquake (Miyagi-ken oki earthquake with magnitude of 7.2) taken place on 16 August 2005, are analyzed by means of different fractal analysis methods, including (1) spectral slope estimation, (2) multi-fractal detrended fluctuation analysis. It seems to the authors that there is no definite analysis method for the analysis of any seismogenic phenomenon, so that the only way we have to take, is to apply different methods to the same data for the detailed comparison of the results. This comparison enables us to deduce the properties commonly observed by the above methods. Because the most important feature common to these methods, is that significant changes in fractal scaling characteristics are observed just during the earthquake (mainly before the earthquake) only at one station of Kunimi. Finally, we can come to the definite conclusion on the self-organization of VHF emissions only at one station in the present case.
Keyword (in Japanese) (See Japanese page) 
(in English) VHF Emissions / Seismo Electromagnetic Phenomena / Fractal / Multifractal / MFDFA / / /  
Reference Info. IEICE Tech. Rep., vol. 107, no. 377, AP2007-116, pp. 7-11, Dec. 2007.
Paper # AP2007-116 
Date of Issue 2007-12-06 (AP) 
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 AP  
Conference Date 2007-12-13 - 2007-12-13 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) etc. 
Paper Information
Registration To AP 
Conference Code 2007-12-AP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Fractal analysis of VHF electromagnetic noise associated with the Miyagi prefecture offshore earthquake 
Sub Title (in English)  
Keyword(1) VHF Emissions  
Keyword(2) Seismo Electromagnetic Phenomena  
Keyword(3) Fractal  
Keyword(4) Multifractal  
Keyword(5) MFDFA  
Keyword(6)  
Keyword(7)  
Keyword(8)  
1st Author's Name Naoyuki Yonaiguchi  
1st Author's Affiliation the University of Electro-Communications (Univ. Electro-Comms)
2nd Author's Name Shigeru Masuda  
2nd Author's Affiliation Tohoku Intelligent Telecommunication Co., Inc. (TOHKnet)
3rd Author's Name Yuichi Ida  
3rd Author's Affiliation the University of Electro-Communications (Univ. Electro-Comms)
4th Author's Name Masashi Hayakawa  
4th Author's Affiliation the University of Electro-Communications (Univ. Electro-Comms)
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Speaker Author-3 
Date Time 2007-12-13 13:25:00 
Presentation Time 25 minutes 
Registration for AP 
Paper # AP2007-116 
Volume (vol) vol.107 
Number (no) no.377 
Page pp.7-11 
#Pages 5 
Date of Issue 2007-12-06 (AP) 

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