Zobrazeno 1 - 10
of 863
pro vyhledávání: '"DOI, Masao"'
Brownian motion and viscoelasticity of semiflexible polymers is a subject that has been studied for many years. Still, rigorous analysis has been hindered due to the difficulty in handling the constraint that polymer chains cannot be stretched along
Externí odkaz:
http://arxiv.org/abs/2403.05173
Publikováno v:
ACS Macro Lett. 2024, 13, 5, 483-488
A sheet of glassy polymers placed in a solvent shows swelling behaviors quite different from that of soft polymers (rubbers and gels). (1) Non-Fickian diffusion (called case II diffusion): As solvent permeates into the sample, a sharp front is create
Externí odkaz:
http://arxiv.org/abs/2402.03844
We consider a cylinder immersed in viscous fluid moving near a flat substrate covered by an incompressible viscoelastic fluid layer, and study the effect of the fluid viscoelasticity on the lift force exerted on the cylinder. The lift force is zero w
Externí odkaz:
http://arxiv.org/abs/2308.10400
Publikováno v:
Langmuir 2023, 39, 1, 563
We analyze the translocation process of a spherical vesicle, made of membrane and incompressible fluid, through a hole smaller than the vesicle size, driven by pressure difference $\Delta P$. We show that such a vesicle shows certain universal charac
Externí odkaz:
http://arxiv.org/abs/2210.08991
Autor:
Zhou, Jiajia, Doi, Masao
Publikováno v:
Entropy 24, 716 (2022)
Using Onsager variational principle, we study the dynamic coupling between the stress and the composition in polymer solution. In the original derivation of the two-fluid model [Doi and Onuki, J. Phys. II France {\bf 2}, 1631 (1992)], the polymer str
Externí odkaz:
http://arxiv.org/abs/2205.08058
Publikováno v:
Langmuir 38, 5779 (2022)
We study the dynamics of a fluid rising in a capillary tube with corners. In the cornered tube, unlike the circular tube, fluid rises with two parts, the bulk part where the entire cross-section is occupied by the fluid, and the finger part where the
Externí odkaz:
http://arxiv.org/abs/2204.05614
Publikováno v:
Langmuir 37, 11276 (2021)
We analyze the dynamics of liquid filling in a thin, slightly inflated rectangular channel driven by capillary forces. We show that although the amount of liquid $m$ in the channel increases in time following the classical Lucas-Washburn law, $m \pro
Externí odkaz:
http://arxiv.org/abs/2109.04327
We study the dynamics of contact angle of a droplet of binary solution evaporating on a super wetting surface. Recent experiments show that although equilibrium contact angle of such droplet is zero, the contract angle can show complex time dependenc
Externí odkaz:
http://arxiv.org/abs/2107.11618
Autor:
Man, Xingkun, Doi, Masao
When a gel absorbs solvent from surrounding, stress field is created in the gel, and this causes complex dynamics of the swelling behavior. Here we study this effect for disk-shaped gel by rigorously solving the diffusio-mechanical coupling equation.
Externí odkaz:
http://arxiv.org/abs/2105.06760