A03公募（2014-15） 義永 那津人
Yuki Koyano, Natsuhiko Yoshinaga, and *Hiroyuki Kitahata,
General criteria for determining rotation or oscillation in a two-dimensional axisymmetric system,
Journal of Chemical Physics 143, 014117/1-6 (2015).
概要： 中心力中や閉じ込められた、二次元軸対称系での自発運動粒子は振動や回転運動を示す。これらの運動は粒子や境界の非対称性を必要とせず自発的に対称性を破ることによって実現する。本論文では、自己駆動粒子の一般的なモデルを提案し、弱非線形解析によって振動運動と回転運動が起きる条件について明らかにした。 【北畑裕之（研究の総括）、義永那津人（理論解析の補助）】
Oral (contributed)
*Natsuhiko Yoshinaga,
Self-propulsive motion and deformation of a chemically-driven drop,
68th Annual Meeting of the APS Division of Fluid Dynamics (Nov. 22-24, 2015), Boston, USA.
Poster
*Natsuhiko Yoshinaga,
The interaction of self-propelled drops with deformation,
Lorentz Center International Center for Workshops in the Sciences, “Active Liquids” (Sep. 21-25, 2015), Lorentz Center, Leiden, Netherland.
*Natsuhiko Yoshinaga,
Spontaneous motion and deformation of a self-propelled droplet,
International Symposium on Fluctuation and Structure out of Equilibrium 2015 (SFS2015) (Aug. 20-23, 2015), Kyoto, Japan.
*Yuki Koyano, Natsuhiko Yoshinaga, and Hiroyuki Kitahata,
Rotation and Oscillation of a Self-Propelled particle in a Two-Dimensional Axisymmetric System,
International Symposium on Fluctuation and Structure out of Equilibrium 2015 (SFS2015) (Aug. 20-23, 2015), Kyoto, Japan.
Invited
*Natsuhiko Yoshinaga,
Self-propulsion of a droplet: motility and deformation,
The Ninth IMACS International Conference on Nonlinear Evolution Equations and Wave Phenomena: Computation and Theory (Apr. 1-4, 2015), University of Georgia, Athens, USA.
Oral (contributed)
*Natsuhiko Yoshinaga,
Mechanics of active gels and spontaneous motion of droplets as biologically-motivated systems,
RIMS International Conference: “Mathematical Challenge to a New Phase of Materials Science” (Aug. 4-8, 2014), Kyoto, Japan.
*Natsuhiko Yoshinaga,
Spontaneous motion and deformation of a droplet driven by chemical reaction,
RIMS International Conference: “Sapporo summer conference on dynamics of patterns in materials science” (Jul. 31 – Aug. 2, 2014), Sapporo, Japan.
*Natsuhiko Yoshinaga,
Dynamics of pattern formation in nonequilibrium soft materials,
Pattern Formation: mathematics and materials (Apr. 29-30, 2014), Canberra, Australia.