| We would like to report the autonomous motors under nonequilibrium conditions. The autonomous motors are driven by the heterogeneous distribution of the surface active molecular layer developed from the solid fragment. We investigated systems with camphor that show various types of self-motion, e.g., uni-directional motion, characteristic motion depending on the shape of the water chamber, mode-switching among different types of motion, and the characteristic motion of camphor derivatives (e.g., intermittent motion of a camphoric acid fragment in coupled with a chemical reaction). In this conference, we would like to report two kinds of the synchronized autonomous motors, i.e., (1) two camphor boats synchronously moves while regulating the individual velocities at the corners of polygonal water chambers and (2) a camphor fragment moves in couple with the outer mobile boundary. It is possible to create various nature of synchronized sailing between two motors regulated depending on the phase (or distance between two motors) and geometry of the boundary. These characteristic features of synchronized self-motion were qualitatively reproduced by a numerical calculation based on a Newtonian equation that considered surface tension as the driving force and the number of corners of the chamber as a velocity-regulation mechanism. This system may be a simple model of synchronization between two oscillators regulated depending on the phase and geometry of the boundary. |
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