Toshihiro Kawakatsu

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This paper discusses a fully decentralized algorithm able to control the morphology of a two-dimensional modular robot called “Slimebot”, consisting of many identical modules, according to the environment encountered. One of the significant features of our approach is that we explicitly exploit “emergent phenomena” stemming from the(More)
Graduate Students Rihei Endou, Hiroshi Kohno, Shinichiro Nagahiro (to Jul. 2005), and Daigo Tamura (D3) Masatoshi Mugikura, and Yohei Morii (D2) You Iida, Junya Otsuki, Daichi Kimura, Takayoshi Tanaka, and Jin-Sung Park (from Oct.) (D1) Yohei Iizawa, Akira Uchida, Hiroto Ogawa, Yuji Oyama, Isamu Sakai, Takayuki Sakata, Kenta Sato, Kentaro Sato, Aya Nagano,(More)
This paper discusses a fully decentralized algorithm able to control the morphology of a modular robot, consisting of many identical modules, according to the environment encountered. One of the significant features of our approach is that we explicitly exploit "emergent phenomena" stemming from the interaction between control and mechanical dynamics in(More)
In the framework of a recently developed scheme for a hybrid particle-field simulation technique where self-consistent field theory (SCF) and molecular dynamics (MD) are combined [ J. Chem. Phys. 2009 , 130 , 214106 ], specific coarse-grained models for phospholipids and water have been developed. We optimized the model parameters, which are necessary in(More)
We investigate equilibrium Shapes of vesicles composed of a mixture of partially miscible amphiphiles embedded in twoand three-dimensional Space. The amphiphilic molecules can diffuse within the membrane and undergo an intramembrane phase separation below a critical temperature. We assume a simple phenomenological coupling between the local relative(More)
This paper discusses a fully decentralized algorithm able to control the morphology of a two-dimensional modular robot called "Slimebot", consisting of many identical modules, according to the environment encountered. One of the significant features of our approach is that we explicitly exploit "emergent phenomena" stemming from the interplay between(More)
We investigate unilamellar membranes and vesicles composed of an A/B mixture of partially miscible amphiphiles. Assuming a simple bilinear coupling between relative composition and local curvature, and in the strong segregation limit of the A/B mixture, we show for unilamellar open-shape membranes that the competition between sudace tension and curvature(More)
This paper discusses a fully decentralized algorithm able to create a coherent swam of autonomous mobile robots from the viewpoint of “computational physics”. To this end, we particularly focus on the “Molecular Dynamics method” and the “Stokesian Dynamics method”, both of which are widely used to investigate multi-body systems. To verify the feasibility of(More)