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Paper Abstract and Keywords
Presentation 2015-01-27 10:45
Waveforms observed in the forced LED firefly oscillator
Daisuke Ito (Tokushima Univ.), Takuji Kousaka (Oita Univ.), Tetsushi Ueta, Hiroshi Kawakami (Tokushima Univ.) NLP2014-132
Abstract (in Japanese) (See Japanese page) 
(in English) Cooperative or conjoint action of creatures with autonomous oscillation can be considered as synchronization phenomena which are one of typical nonlinear dynamic properties. For example, there are the group singing of crickets, self-organized light synchronizations of fireflies and so on. In this report, we focus on the forced LED firefly constructed from an RC square wave generator with a light sensor. The light sensor (the photo transistor) is exposed to the square wave light with a period T and a duty cycle 50%. We analyze and classify its time response waves. As a result, there can be classified as 4 responses as follows: 1) an isolated periodic wave, 2) a quasi periodic wave, 3) a non-isolated periodic wave, and 4) a singular wave.
Keyword (in Japanese) (See Japanese page) 
(in English) LED fireflies / Isolated periodic orbits / Quasi periodic orbits / / / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 414, NLP2014-132, pp. 113-116, Jan. 2015.
Paper # NLP2014-132 
Date of Issue 2015-01-19 (NLP) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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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 NLP  
Conference Date 2015-01-26 - 2015-01-27 
Place (in Japanese) (See Japanese page) 
Place (in English) Compal Hall 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Nonlinear Problems, etc. 
Paper Information
Registration To NLP 
Conference Code 2015-01-NLP 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Waveforms observed in the forced LED firefly oscillator 
Sub Title (in English)  
Keyword(1) LED fireflies  
Keyword(2) Isolated periodic orbits  
Keyword(3) Quasi periodic orbits  
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1st Author's Name Daisuke Ito  
1st Author's Affiliation The University of Tokushima (Tokushima Univ.)
2nd Author's Name Takuji Kousaka  
2nd Author's Affiliation Oita University (Oita Univ.)
3rd Author's Name Tetsushi Ueta  
3rd Author's Affiliation The University of Tokushima (Tokushima Univ.)
4th Author's Name Hiroshi Kawakami  
4th Author's Affiliation Professor emeritus of The University of Tokushima (Tokushima Univ.)
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Speaker Author-1 
Date Time 2015-01-27 10:45:00 
Presentation Time 25 minutes 
Registration for NLP 
Paper # NLP2014-132 
Volume (vol) vol.114 
Number (no) no.414 
Page pp.113-116 
#Pages
Date of Issue 2015-01-19 (NLP) 


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