Presentation 2016-11-07
[Invited Talk] No Regrets for Our Study?
Shigemi Saito,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) The study between my graduation work at Tohoku University and my retirement from Tokai University is recollected. Although curious characteristics of magnetostrictive transducers under the intense driving condition were met at Tohoku University, the causes are still remained unknown. At the initial stage joining with Tokai University, the study on the nonlinear propagation of focused sounds started in the overseas study at The University of Texas. Inspired by the prosperity of acoustical microscope, the quasi-microscope was realized to image the acoustic nonlinearity parameter B/A in a biological tissue just before the retirement. Before obtaining diseased tissues desired for the test sample, the acoustic system to be a core part of the equipment was accidentally broken and was never recovered before the retirement. That was my complete failure. As seen above, our study was fruitless and of continuous failures. I can never say “No Regrets for Our Study” modifying the title of Mr. Akira Kurosawa’s film. It would be better if young researchers took a lesson from my recollection and patiently worked for the subjects with long-range visions.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Magnetostrictive Transducer / Internal Loss / Equivalent Circuit / Nonlinear Acoustics / Focusing Source / Acoustic Nonlinearity Parameter
Paper # US2016-55
Date of Issue 2016-10-31 (US)

Conference Information
Committee US
Conference Date 2016/11/7(1days)
Place (in Japanese) (See Japanese page)
Place (in English)
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Nobuyuki Endo(Kanagawa Univ.)
Vice Chair Yoichi Itoh(Nihon Univ.) / Minoru Kurosawa(Tokyo Inst. of Tech.)
Secretary Yoichi Itoh(Univ. of Electro-Comm.) / Minoru Kurosawa(Univ. of Toyama)
Assistant Takeshi Morita(Univ. of Tokyo)

Paper Information
Registration To Technical Committee on Ultrasonics
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Invited Talk] No Regrets for Our Study?
Sub Title (in English)
Keyword(1) Magnetostrictive Transducer
Keyword(2) Internal Loss
Keyword(3) Equivalent Circuit
Keyword(4) Nonlinear Acoustics
Keyword(5) Focusing Source
Keyword(6) Acoustic Nonlinearity Parameter
1st Author's Name Shigemi Saito
1st Author's Affiliation Tokai University(Tokai Univ.)
Date 2016-11-07
Paper # US2016-55
Volume (vol) vol.116
Number (no) US-288
Page pp.pp.35-40(US),
#Pages 6
Date of Issue 2016-10-31 (US)