○Young Author’s Award

Mr. Keisuke HASEGAWA  (Student Member)
He received the B.E. degree in Information Physics from the University of Tokyo, Tokyo, Japan, in 2009, the M.E. degree in information physics and computing from the University of Tokyo, Tokyo, Japan, in 2011, and is currently working toward the Ph.D. degree at the University of Tokyo. He is currently a Research Fellow with the Japan Society for the Promotion of Science (JSPS). His current research interest includes haptic technologies to support our daily lives.

受賞論文「A Method for Distribution Control of Aerial Ultrasound Radiation Pressure for Remote Vibrotactile Display」
We propose a calculation method for phase and amplitude of ultrasound transducers in arrays, which are supposed to generate proper spatial distribution of radiation pressure on users’ skins corresponding to vibrotactile sensation conveyed to users. The phased array technique has been applied in our previous studies for ultrasound transducer arras and converged energy in a focus of magnified amplitude in the air has successfully been generated as well as vibrotactile stimulation in a single point. In this paper we expand that phasing scheme from a single focus to arbitrary three-dimensional amplitude distribution with transducers located in three-dimensional displacement. We verify the validity of our method with numerical experiments.

○International Award

Prof. Hiroshi Ito  (Member)
He received the B.E. degree, the M.E. degree and the Ph.D. degree in Electrical Engineering from Keio University, Japan, in 1990, 1992 and 1995, respectively. From 1994 to 1995, he was a research fellow of the Japan Society for the Promotion of Science. He has been with Kyushu Institute of Technology, Japan since 1995. He has been a Professor at the Department of Systems Design and Informatics since September, 2013. From 1998 to 1999, he held visiting researcher positions in Northwestern University and University of California, San Diego. His main research interests include stability of nonlinear systems, theory of robustness, large-scale systems, time-delay systems, multi-rate sampled data control and asynchronous systems with emphasis on applications to power and microgrid systems, biological and communication networks.

受賞論文「Robustifying local feedback for dynamical networks with respect to disturbances」
A problem of designing decentralized robust controllers for dynamical networks is addressed. For general topology of nonlinear networks, it is shown that integral input-to-state stability with respect to additive disturbances acting on subsystems can be achieved by local state feedback. The robustification is proven possible in the decentralized way if the network satisfies a small-gain condition.