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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 33  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
US 2023-10-18
13:55
Miyagi Tohoku Univ. and Online
(Primary: On-site, Secondary: Online)
An ultrasonic method for measuring small continuous sinusoidal displacements using a network analyzer
Yuya Komatsu, Shohei Mori, Mototaka Arakawa, Hiroshi Kanai (Tohoku Univ.) US2023-38
We have developed a method for generating continuous sinusoidal displacements of an object to estimate the viscoelastic ... [more] US2023-38
pp.5-10
US 2021-11-26
15:55
Online Online Study on estimation of speed of sound in propagation medium considering size of target scatterer
Shohei Mori, Mototaka Arakawa, Hiroshi Kanai (Tohoku Univ.) US2021-46
Speed of sound estimation in propagation medium of ultrasound is essential to improve an ultrasound imaging quality. In ... [more] US2021-46
pp.36-41
US 2020-09-28
10:10
Online Online Investigation on measurement of myocardial contraction response using multiple-frequency phased-tracking method
Yu Obara, Shohei Mori, Mototaka Arakawa, Hiroshi Kanai (Tohoku Univ.) US2020-27
 [more] US2020-27
pp.1-6
US 2020-09-28
10:35
Online Online A Basic Study on Depiction of Thoracic Spine Based on Difference between Ultrasound Reflection and Scattering Characteristics
Takumi Hashimoto, Shohei Mori, Mototaka Arakawa, Onishi Eiko, Masanori Yamauchi, Hiroshi Kanai (Tohoku univ.) US2020-28
 [more] US2020-28
pp.7-12
EA, US
(Joint)
2020-01-23
10:00
Kyoto Doshisha Univ. Multiple Phased-Tracking for Velocity Estimation of Heart Wall
Yu Obara, Shohei Mori, Mototaka Arakawa, Hiroshi Kanai (Tohoku Univ.) US2019-93
For the detection of the myocardial ischemic regions at an early stage, we have been studied measuring the contraction r... [more] US2019-93
pp.125-130
US 2019-09-25
16:25
Miyagi Tohoku Univ. Improvement in estimation accuracy of luminal surface roughness of carotid artery by ultrasonic measurement -- examination on the elimination method of pulsatile components of blood vessel --
Takahisa Abe, Shohei Mori, Mototaka Arakawa, Hiroshi Kanai (Tohoku Univ.) US2019-56
Measuring the tens of microns’ roughness on the luminal surface of the arterial wall is expected to realize an extremely... [more] US2019-56
pp.53-58
US 2018-10-04
10:25
Miyagi   In vivo estimation of sound velocity distribution for diagnosis of fatty liver disease and high resolution of tomographic imaging using ultrasound
Keiichiro Abe, Shohei Mori, Mototaka Arakawa, Hiroshi Kanai (Tohoku Univ.) US2018-50
Medical ultrasound imaging has high performance in observing various organs. However, there is a problem that the image ... [more] US2018-50
pp.7-12
US 2017-10-05
13:00
Miyagi   Analysis of Ultrasonic Scattering Characteristics for Diabetics Focusing on Red Blood Cell Aggregation
Hiroki Sakaki, Mototaka Arakawa (Tohoku Univ.), Satoshi Yashiro, Yasushi Ishigaki (Iwate Medical Univ.), Hiroshi Kanai (Tohoku Univ.) US2017-56
The frequency dependence of the ultrasonic backscattering power varies due to the scatterer size. However, the ultrason... [more] US2017-56
pp.1-4
US 2017-10-05
14:30
Miyagi   Analysis of pulse wave velocity by ultrasonic instantaneous measurement of small vibrations at multiple points on arterial wall
Mika Ito, Mototaka Arakawa, Hiroshi Kanai (Tohoku Univ.) US2017-59
In the conventional pulse wave velocity (PWV) measurement methods, there are problems that the measurement range is wide... [more] US2017-59
pp.17-20
US 2017-10-05
14:55
Miyagi   Ultrasonic measurement of propagation of myocardial contraction response in interventricular septum
Itsuki Kobayashi, Mototaka Arakawa, Hiroshi Kanai (Tohoku Univ.) US2017-60
It is known that ischemia occurred in the cardiac muscle introduces abnormality in the contraction function of the myoca... [more] US2017-60
pp.21-26
US 2012-09-24
15:10
Akita Tegata Campus, Akita Univ. Evaluation of Silica Glasses by the Ultrasonic Microspectroscopy Technology -- Effects of OH and Cl on Fictive Temperature Dependences of Acoustic Properties --
Mototaka Arakawa, Yuji Ohashi, Yuko Maruyama, Jun-ichi Kushibiki (Tohoku Univ.), Hideharu Horikoshi, Kenji Moriyama (Tosoh SGM) US2012-62
In this paper, an evaluation method of silica glasses by the ultrasonic microspectroscopy technology was discussed. Six... [more] US2012-62
pp.27-32
US 2012-08-27
13:40
Overseas Pukyong National University Determination Method of Acoustical Physical Constants and Their Temperature Coefficients of La<sub>3</sub>Ta<sub>0.5</sub>Ga<sub>5.3</sub>Al<sub>0.2</sub>O<sub>14</sub> Single Crystal
Yuji Ohashi (Tohoku Univ.), Tomoaki Karaki (Toyama Pref. Univ.), Hitoshi Yoshida (Tohoku Univ.), Tao Lv (Toyama Pref. Univ.), Mototaka Arakawa (Tohoku Univ.), Masatoshi Adachi (Toyama Pref. Univ.), Jun-ichi Kushibiki (Tohoku Univ.) US2012-38
We proposed a determination method of accurate acoustical physical constants and their temperature coefficients for La3T... [more] US2012-38
pp.23-26
US 2011-11-24
14:25
Shizuoka Tokai Univ. TiO2-SiO2 ultra-low-expansion glasses for EUVL system evaluated by ultrasonic zero-CTE temperature measurement system
Jun-ichi Kushibiki, Mototaka Arakawa, Yuji Ohashi, Yuko Maruyama (Tohoku Univ.) US2011-71
We developed an indirect ultrasonic measurement method as a practical system for super-precisely measuring the zero-CTE ... [more] US2011-71
pp.31-36
US 2011-09-27
09:50
Miyagi Tohoku Univ. Fictive-Temperature Evaluation of Synthetic Silica Glass Ingots by the Ultrasonic Microspectroscopy Technology
Jun-ichi Kushibiki, Mototaka Arakawa, Yuji Ohashi, Yuko Maruyama, Syunsuke Kaiga (Tohoku Univ.), Hideharu Horikoshi, Kenji Moriyama (Tosoh SGM) US2011-55
 [more] US2011-55
pp.49-52
US 2011-09-27
10:25
Miyagi Tohoku Univ. Evaluation of Glass Multilayer Films by the Line-Focus-Beam Ultrasonic Material Characterization System
Mototaka Arakawa, Jun-ichi Kushibiki (Tohoku Univ.), Kazuhiko Itoh, Kazuyuki Etoh (JAE) US2011-56
Multilayer films for optical cavity with ultra-high finesse were evaluated by the line-focus-beam ultrasonic material ch... [more] US2011-56
pp.53-57
US 2011-09-27
10:50
Miyagi Tohoku Univ. Evaluation of Acoustic Properties of Amorphous Ta2O5 Thin Film Prepared by RF Sputtering
Shoji Kakio, Keiko Hosaka (Univ. Yamanashi), Mototaka Arakawa, Yuji Ohashi, Jun-ichi Kushibiki (Tohoku Univ.) US2011-57
 [more] US2011-57
pp.59-64
EA, US
(Joint)
2011-01-21
14:15
Kyoto Doshisha Univ. Homogeneity Evaluation of a Synthetic Silica Glass Ingot by the Ultrasonic Microspectroscopy Technology
Jun-ichi Kushibiki, Mototaka Arakawa, Yuji Ohashi, Yuko Maruyama (Tohoku Univ.), Hideharu Horikoshi, Kenji Moriyama (Tosoh SGM) US2010-108
Homogeneities of a synthetic silica glass ingot were evaluated by the ultrasonic microspectroscopy technology. Specimen... [more] US2010-108
pp.95-100
US 2010-09-29
14:50
Miyagi Tohoku Univ. Evaluation of Fictive Temperature of Synthetic Silica Glasses by the Ultrasonic Microspectroscopy Technology
Jun-ichi Kushibiki, Mototaka Arakawa, Yuji Ohashi, Yuko Maruyama, Takanori Kondo, Tetsuo Yoshida (Tohoku Univ.) US2010-52
We developed an evaluation method of fictive temperatures TF for synthetic silica (SiO2) glasses by the ultrasonic micro... [more] US2010-52
pp.23-28
US 2010-09-29
15:40
Miyagi Tohoku Univ. Measurement of Propagation Characteristics of Leaky Surface Acoustic Waves for Lossy Specimen by the LFB Ultrasonic Material Characterization System
Takanori Kondo, Yuji Ohashi, Mototaka Arakawa, Jun-ichi Kushibiki (Tohoku Univ.) US2010-54
We investigated scattering effect observed in leaky surface acoustic wave (LSAW) propagation characteristics (phase velo... [more] US2010-54
pp.33-37
US 2010-09-30
10:25
Miyagi Tohoku Univ. Acoustical Physical Constants of La3Ta0.5Ga5.3Al0.2O14 Single Crystal
Yuji Ohashi (Tohoku Univ.), Tomoaki Karaki, Tao Lv (Toyama Pref. Uinv.), Mototaka Arakawa (Tohoku Univ.), Masatoshi Adachi (Toyama Pref. Uinv.), Jun-ichi Kushibiki (Tohoku Univ.) US2010-61
We measured accurate acoustical physical constants and their temperature coefficients for La3Ta0.5Ga5.3Al0.2O14 (LTGA) s... [more] US2010-61
pp.69-74
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