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59 papers · 1 filter
Ostwald ripening of aqueous microbubble solutions
Sota Inoue, Yasuyuki Kimura, Yuki Uematsu
Bubble solutions are of growing interest because of various technological applications in surface cleaning, water treatment, and agriculture. However, their physicochemical propert…
Electrophoretic mobility of a water-in-oil droplet separately affected by the net charge and surface charge density
Yuki Uematsu, Hiroyuki Ohshima
Water-in-oil emulsions and droplets exhibit completely different physico-chemical properties compared to oil-in-water emulsions and droplets. Thus, directly applying a standard the…
Stress Tensor of Single Rigid Dumbbell by Virtual Work Method
Takashi Uneyama, Tatsuma Oishi, Takato Ishida +2
We derive the stress tensor of a rigid dumbbell by using the virtual work method. In the virtual work method, we virtually apply a small deformation to the system, and relate the c…
Quasi-two-dimensional bacterial swimming around pillars: enhanced trapping efficiency and curvature dependence
Yuki Takaha, Daiki Nishiguchi
Microswimmers exhibit more diverse behavior in quasi-two dimensions than in three dimensions. Such behavior remains elusive due to the analytical difficulty of dealing with two par…
Dynamical Entanglement and Cooperative Dynamics in Entangled Solutions of Ring and Linear Polymers
Davide Michieletto, Takahiro Sakaue
Understanding how entanglements affect the behaviour of polymeric complex fluids is an open challenge in many fields. To elucidate the nature and consequence of entanglements in de…
Linear Viscoelasticity of Dumbbells Interacting via Gaussian Soft-Core Potential
Takashi Uneyama
In polymer melts, the interaction between segments are considered to be screened and the ideal Gaussian chain statistics is recovered. The experimental fact that linear viscoelasti…