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Paper Abstract and Keywords
Presentation 2015-01-28 14:50
Development of Suspended Sediment Concentration Measurement System Using a Broadband Ultrasonic Pulse -- Sediment Management of Dams using Ultrasonic Attenuation Spectrometer --
Hitoshi Furukawa (EPDC), Shigemitu Inomata (Hikuto-riken), Hidekazu Tai, Tsutomu Kobayshi (Nihon Univ.) US2014-78
Abstract (in Japanese) (See Japanese page) 
(in English) Suspended sediment in rivers is produced in the upstream basin and is transported to downstream by floods etc. It finally flows out into the sea. However, since there are dams on river system, suspended sediment is often deposited in the reservoir and the dredging may become a serious problem. The monitoring of suspended sediment is important in sediment management of dam, we have studied the measurement technology using ultrasonic attenuation spectroscopy. It is a method of determining the particle size distributions and concentrations of suspended particles. This measurement principle is based on the ECAH theory. Although this theory can be directly applied to the suspended particles with homogeneous spherical shape, it is not usable for the particles with irregular shapes in rivers. For the case of particles with irregular shapes, a semi-empirical model can be used. In this paper, we measured the concentrations of suspended silica particles of 0.1-100 μm in diameter with two equivalent sphere models. As the result, it was revealed that these models could be used to measurement of the concentration of suspended sediment particles with irregular shapes.
Keyword (in Japanese) (See Japanese page) 
(in English) Ultrasonic attenuation spectroscopy / suspended sediment concentration / equivalent sphere model / size parameter / / / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 422, US2014-78, pp. 21-26, Jan. 2015.
Paper # US2014-78 
Date of Issue 2015-01-21 (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 EA  
Conference Date 2015-01-28 - 2015-01-29 
Place (in Japanese) (See Japanese page) 
Place (in English) Doshisha Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) [Joint Meeting on Acoustics and Ultrasonics Subsociety] Engineering/Electro Acoustics, Ultrasonic and Underwater Acoustics，and Related Topics 
Paper Information
Registration To US 
Conference Code 2015-01-US-EA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Development of Suspended Sediment Concentration Measurement System Using a Broadband Ultrasonic Pulse 
Sub Title (in English) Sediment Management of Dams using Ultrasonic Attenuation Spectrometer 
Keyword(1) Ultrasonic attenuation spectroscopy  
Keyword(2) suspended sediment concentration  
Keyword(3) equivalent sphere model  
Keyword(4) size parameter  
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1st Author's Name Hitoshi Furukawa  
1st Author's Affiliation Electric Power Development Co. Ltd. (EPDC)
2nd Author's Name Shigemitu Inomata  
2nd Author's Affiliation Hokuto-riken Co. Ltd. (Hikuto-riken)
3rd Author's Name Hidekazu Tai  
3rd Author's Affiliation Nihon University (Nihon Univ.)
4th Author's Name Tsutomu Kobayshi  
4th Author's Affiliation Nihon University (Nihon Univ.)
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Speaker Author-1 
Date Time 2015-01-28 14:50:00 
Presentation Time 25 minutes 
Registration for US 
Paper # US2014-78 
Volume (vol) vol.114 
Number (no) no.422 
Page pp.21-26 
#Pages 6 
Date of Issue 2015-01-21 (US) 

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