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Paper Abstract and Keywords
Presentation 2010-09-30 09:50
Characteristic three dimensional anisotropy of ultrasonic wave velocity in cortical bone of bovine femur -- Tilt of the highest velocity direction from bone axis --
Tomohiro Nakatsuji (Doshisha Univ.), Kazufumi Yamamoto (Hamamatsu Univ. Med.), Shinji Takayanagi (Doshisha Univ.), Takahiko Yanagitani (Nagoya Inst. of Tech.), Mami Matsukawa (Doshisha Univ.), Kaoru Yamazaki (Iwata City Hospital) US2010-60
Abstract (in Japanese) (See Japanese page) 
(in English) Longitudinal ultrasonic wave propagation in bovine femoral cortical bones was investigated using a conventional ultrasonic pulse system. First, spherical specimens were obtained from anterior parts in the right and left cortical bones. Then, we experimentally investigated the three-dimensional distribution of ultrasonic wave velocity in the vicinity of the bone axis. Directions of the highest wave velocity were not the bone axis. The directions showed tilts of several degrees from bone axis. Moreover, the results from the X-ray pole figure analysis indicated that Hydroxyapatite crystallites orientation also showed similar tilts. The right and left cortical bones showed similar velocity tendency, in addition, the tilts from the bone axis were bilaterally symmetric. These interesting results might lead to an assessment of the complicated elasticity of cortical bone.
Keyword (in Japanese) (See Japanese page) 
(in English) Bovine cortical / Spherical specimen / Longitudinal ultrasonic wave velocity / Anisotropy / Hydroxyapatite / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 213, US2010-60, pp. 63-68, Sept. 2010.
Paper # US2010-60 
Date of Issue 2010-09-22 (US) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
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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  
Conference Date 2010-09-29 - 2010-09-30 
Place (in Japanese) (See Japanese page) 
Place (in English) Tohoku Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) General 
Paper Information
Registration To US 
Conference Code 2010-09-US 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Characteristic three dimensional anisotropy of ultrasonic wave velocity in cortical bone of bovine femur 
Sub Title (in English) Tilt of the highest velocity direction from bone axis 
Keyword(1) Bovine cortical  
Keyword(2) Spherical specimen  
Keyword(3) Longitudinal ultrasonic wave velocity  
Keyword(4) Anisotropy  
Keyword(5) Hydroxyapatite  
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1st Author's Name Tomohiro Nakatsuji  
1st Author's Affiliation Doshisha University (Doshisha Univ.)
2nd Author's Name Kazufumi Yamamoto  
2nd Author's Affiliation Hamamatsu University School of Medicine (Hamamatsu Univ. Med.)
3rd Author's Name Shinji Takayanagi  
3rd Author's Affiliation Doshisha University (Doshisha Univ.)
4th Author's Name Takahiko Yanagitani  
4th Author's Affiliation Nagoya Institute of Technology (Nagoya Inst. of Tech.)
5th Author's Name Mami Matsukawa  
5th Author's Affiliation Doshisha University (Doshisha Univ.)
6th Author's Name Kaoru Yamazaki  
6th Author's Affiliation Iwata City Hospital (Iwata City Hospital)
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Speaker Author-1 
Date Time 2010-09-30 09:50:00 
Presentation Time 25 minutes 
Registration for US 
Paper # US2010-60 
Volume (vol) vol.110 
Number (no) no.213 
Page pp.63-68 
#Pages 6 
Date of Issue 2010-09-22 (US) 

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