Search Results:　 1-20 of 3276

大隅 歩 , 小林 寛政 , 野嶋 泰宏 他

電子情報通信学会技術研究報告 : 信学技報 112(366), 39-44, 2012-12-18

Ding Mingjie , Koyama Daisuke , Nakamura Kentaro

… The droplet was levitated at the nodal position of the standing wave mode in the cross section of the waveguide and transported by the traveling wave component in the horizontal direction. …

Applied Physics Express 5(9), 097301-097301-3, 2012-09-25

The Japan Society of Applied Physics

Karaki Tomoaki , Lv Tao , Adachi Masatoshi , Ohashi Yuji , Arakawa Mototaka , Kushibiki Jun-ichi

… The dielectric, elastic, and piezoelectric constants of langasite family single-crystal La3Ta0.5Ga5.3Al0.2O14 (LTGA) were measured by combing plane-wave ultrasonic microspectroscopy (PW-UMS) technology with the resonance--antiresonance method in a range from room temperature to 1000 °C. … All the necessary parameters of the LTGA crystal for acoustic wave applications at high temperatures were determined in this research. …

Jpn J Appl Phys 51(9), 09LD09-09LD09-4, 2012-09-25

The Japan Society of Applied Physics

中山 智了 , Nakayama Tomoaki , 大西 隆文 , Ohnishi Takafumi , 山下 清隆 , Yamashita Kiyotaka , 高塚 公郎 , Takatsuka Kohro

… We discuss the dynamic complex contact behavior between a stator and a liner that sticks to a rotor of an ultrasonic motor. … Moreover, we clear the dynamic contact mechanism and the driving characteristics of the ultrasonic motor such as the dependency of driving torque on the maximum frictional coefficient. …

福井工業大学研究紀要, 188-199, 2012-08-01

IR

石川 雄也 , 中村 満 , 高崎 正也 他

精密工学会誌 78(8), 695-699, 2012-08-00

Ibrahim Nabilah , Hasegawa Hideyuki , Kanai Hiroshi

… In this study, an improved adaptive model of an ultrasonic echo was developed for the model to realize better fitting to the reference RF echo, which is measured from a glass plate, using a Gaussian window for the envelope function of the adaptive model. … Using the mean squared error (MSE) method, the envelope of the improved adaptive model (multiply the sinusoidal wave with the Gaussian window) was fitted with the envelope of an RF echo measured in vivo to estimate the boundaries of the carotid arterial wall. …

Jpn J Appl Phys 51(7), 07GF07-07GF07-8, 2012-07-25

The Japan Society of Applied Physics

Inoue Masaki , Mihara Tsuyoshi , Tashiro Hatsuzou , Furukawa Takashi

… Although in previous studies were examined the ultrasonic reflection behaviors at a nano-air gap using a relatively small optical Newton's ring specimen and a commercial acoustic lens, the details of the quantitative ultrasonic behaviors at a nano-air gap have remained unqualified until now. …

Jpn J Appl Phys 51(7), 07GB12-07GB12-5, 2012-07-25

The Japan Society of Applied Physics

Yamakoshi Yoshiki , Miwa Takashi

… When an ultrasonic wave with sound pressure less than the threshold level of bubble destruction irradiates microbubbles, the microbubbles aggregate by an acoustic radiation force and form bubble clouds. …

Jpn J Appl Phys 51(7), 07GF28-07GF28-4, 2012-07-25

The Japan Society of Applied Physics

Miwa Takashi , Yoshihara Yuki , Kanzawa Kouki , Parajuli Raj Kumar , Yamakoshi Yoshiki

… Tissue elasticity measurements by an ultrasonic wave are a promising technique for the qualitative diagnosis of tumors and liver diseases. … The viscoelastic characteristics in soft tissue can be quantitatively evaluated by considering the frequency dependence of the velocity of the shear wave propagating in the tissue. …

Jpn J Appl Phys 51(7), 07GF13-07GF13-5, 2012-07-25

The Japan Society of Applied Physics

Ohara Yoshikazu , Shintaku Yohei , Horinouchi Satoshi , Ikeuchi Masako , Yamanaka Kazushi

… However, when a short-burst wave is used to achieve a high temporal resolution, not only closed cracks but also linear scatterers appear in the subharmonic image owing to leakage in frequency filtering. …

Jpn J Appl Phys 51(7), 07GB18-07GB18-6, 2012-07-25

The Japan Society of Applied Physics