東京工芸大学　芸術学部フェスタ2020　電子図録

50 Department of Interactive Media KUHARA Yasuo Yasuo Kuhara, born in Tokyo, Japan. He is a chief professor at the department of Interactive media of Tokyo Polytechnic University. He received a PhD in bioinformatics and BE in astronautics from the University of Tokyo. His research interests focus on the fusion of art, science, and life including Generative and Interactive art. His current research project is connected with Artificial Intelligence such as neural networks and a genetic algorithm. A chemical diffuses from an area of high concentration to low concentration and eventually spreads out over a space uniformly. We are not interested in this case. In contrast, when two chemicals react and diffuse, they generate waves of the differential concentration, which produces biological-looking patterns and shapes. These patterns are known as Turing patterns, for example, zebra stripes and leopard spots. The reaction-diffusion algorithm is simple. Virtual chemical U is generated at a given "feed" rate, and virtual chemical V is removed at a given “kill” rate. Two Vs convert a U into V as if V reproduces using A as food. In this work, using the reaction-diffusion equations which express how two chemicals react and diffuse into a space, a computer draws the concentration of the two chemicals as emergent dynamic patterns. Adjusting the feed rate or the kill rate slightly creates a wide range of different results. The mapping of concentration into colors changes gradually, creating diversity in the graphical color. Furthermore, the waves of differential concentration interact to visitors, and the pattern changes moment by moment. Please enjoy the infinitely emergent expression in which the interaction between reaction and diffusion at the micro level generates unpredictable patterns at the macro level. Reaction and Diffusion the 2020 Faculty of Arts Festival FESTA-01 Artwork