About TUTU Hiroki
About Kyoto Univ., Kyoto, JPN
About HORITA Takehiko
About Osaka Prefecture Univ., Sakai, JPN
About OUCHI Katsuya
About Kobe Design Univ., Kobe, JPN
About Journal of the Physical Society of Japan
About Brownian motion
About Langevin equation
About ratchet
About performance
About alternating electric field
About rotation
About work
About torque
About angular momentum
About Fluctuation phenomena,random process,Brownian motion,and transport process
About ラチェット
About 性能推定