Zobrazeno 1 - 10
of 406
pro vyhledávání: '"Ohta, Takao"'
Autor:
Ohta, Takao, Komura, Shigeyuki
The lateral diffusion coefficient of a Brownian particle on a two-dimensional random surface is studied in the quenched limit for which the surface configuration is time-independent. We start with the stochastic equation of motion for a Brownian part
Externí odkaz:
http://arxiv.org/abs/2010.01271
Autor:
Tanaka, Motomu, Thoma, Judith, Poisa-Beiro, Laura, Wuchter, Patrick, Eckstein, Volker, Dietrich, Sascha, Pabst, Caroline, Müller-Tidow, Carsten, Ohta, Takao, Ho, Anthony D.
Publikováno v:
In Cells & Development June 2023 174
Based on symmetry consideration of migration and shape deformations, we formulate phenomenologically the dynamics of cell crawling in two dimensions. Forces are introduced to change the cell shape. The shape deformations induce migration of the cell
Externí odkaz:
http://arxiv.org/abs/1509.05215
We analyze the electro-rheological effect in immiscible fluid mixtures with dielectric mismatch. By taking the electric field effect into account, which couples to the dynamics of domain morphology under flow, we propose a set of electro-rheological
Externí odkaz:
http://arxiv.org/abs/1405.0584
Publikováno v:
Phys. Rev. E 89, 022301 (2014)
A recently introduced active phase field crystal model describes the formation of ordered resting and traveling crystals in systems of self-propelled particles. Increasing the active drive, a resting crystal can be forced to perform collectively orde
Externí odkaz:
http://arxiv.org/abs/1401.5332
Autor:
Yamanaka, Sadato, Ohta, Takao
We study collective dynamics of interacting deformable self-propelled particles whose migration velocity increases when the local density of particles is increased. Numerical simulations in two dimensions reveal that traveling bands similar to those
Externí odkaz:
http://arxiv.org/abs/1307.6709
Autor:
Tarama, Mitsusuke, Menzel, Andreas M., Hagen, Borge ten, Wittkowski, Raphael, Ohta, Takao, Löwen, Hartmut
Publikováno v:
Journal of Chemical Physics 139, 104906 (2013)
The motion of a deformable active particle in linear shear flow is explored theoretically. Based on symmetry considerations, in two spatial dimensions, we propose coupled nonlinear dynamical equations for the particle position, velocity, deformation,
Externí odkaz:
http://arxiv.org/abs/1307.2019
Autor:
Tarama, Mitsusuke, Ohta, Takao
Publikováno v:
J. Phys.: Condens. Matter 24, 464129 (2012)
We investigate the dynamics of a single deformable self-propelled particle which undergoes a spinning motion in a two-dimensional space. Equations of motion are derived from the symmetry argument for three kinds of variables. One is a vector which re
Externí odkaz:
http://arxiv.org/abs/1210.4424
Autor:
Menzel, Andreas M., Ohta, Takao
Publikováno v:
Europhys. Lett. 99, 58001 (2012)
In this work we investigate the collective behavior of self-propelled particles that deform due to local pairwise interactions. We demonstrate that this deformation alone can induce alignment of the velocity vectors. The onset of collective motion is
Externí odkaz:
http://arxiv.org/abs/1208.1110
Publikováno v:
J. Chem. Phys. 136, 074904 (2012)
We study self-propelled dynamics of a droplet due to a Marangoni effect and chemical reactions in a binary fluid with a dilute third component of chemical product which affects the interfacial energy of a droplet. The equation for the migration veloc
Externí odkaz:
http://arxiv.org/abs/1203.0593