Details of a Researcher - Sano, Tomohiko

Reviews, Commentaries, etc. - Sano, Tomohiko

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Erratum: Twist-Induced Snapping in a Bent Elastic Rod and Ribbon [Phys. Rev. Lett. 122 , 114301 (2019)]

Tomohiko G. Sano, Hirofumi Wada

Physical Review Letters (American Physical Society (APS)) 129 ( 6 ) 2022.08

ISSN 00319007

After the publication of this Letter, the authors realized a mistake in the analysis of the linear response theory. On page 3, left column, we stated, “Retaining the terms up to the quadratic orders in Erod and taking the flat-ribbon limit h/w?0, we arrive at the Euler-Lagrange equations for ? and ? as ?'=?/R and ?'' '' - ( G - 2 ) ? '' / R 2 + ? / R 4 = 0 , where G=(1+?)/2.” The correct form of the Euler-Lagrange equation for ?(s) should be the following: (Formula Presented). he quadratic term -A2?2/(2R2) was incorrectly omitted in the expansion of elastic energy Erod . Including that term leads to a modified third term (1-G)?/R4 in the left-hand side of Eq. (1). We updated the Supplemental Material, which now provides the correct analytical solution of Eq. (1) for arbitrary G. In the G?0 limit, the solution correctly reduces to Eq. (2) defined in this Letter. All other equations and analyses are correct; hence, the conclusions remain unchanged.

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Stochastic Mean Field Model of Heat Engine partitioned by Fluctuating Piston

Tomohiko G. Sano, Hisao Hayakawa

2014.12

We propose a stochastic mean field model of heat engine partitioned by a 
finite-mass piston. The time evolution equations for the density and the 
temperature of the enclosed gas are proposed, taking into account the 
stochastic equation of motion of the piston, and the energy conservation for 
the gas. Though the heat cycle consisting of finite-time heating and cooling 
processes is under strong non-equilibrium situations, i. e., the ratio of 
temperatures of two reservoirs is large, we analyze the efficiency and the 
power, and derive the semi-analytical expression for the efficiency. We find 
that the obtained efficiency at the maximum power operation is close to the 
Chambadal-Novikov-Curzon-Ahlborn (CNCA) efficiency, if the piston is 
sufficiently heavy and elastic for collisions with particles, even when the 
system is far from equilibrium. However, the extra heat due to the finiteness 
of the piston-mass or its inelasticity lowers the efficiency from the CNCA 
efficiency. The results of our stochastic mean field model are consistent with 
those for our event driven molecular dynamics simulation.

9aAY-6 Granular rotor : Is is possible to infer athermal granular fluctuation from the dynamics of the rotor?

Sano Tomohiko, Kanazawa Kiyoshi, Sagawa Takahiro, Hayakawa Hisao

Meeting abstracts of the Physical Society of Japan (The Physical Society of Japan (JPS)) 69 ( 2 ) 160 - 160 2014.08

ISSN 1342-8349

CiNii Research

29pBD-11 Microscopic derivation of non-Gaussian Langevin equations

Kanazawa Kiyoshi, Sano Tomohiko, Sagawa Takahiro, Hayakawa Hisao

Meeting abstracts of the Physical Society of Japan (The Physical Society of Japan (JPS)) 69 ( 1 ) 356 - 356 2014.03

ISSN 1342-8349

CiNii Research

29pBD-12 Fluctuating Heat Engine under Dry Friction

Sano Tomohiko, Hayakawa Hisao

Meeting abstracts of the Physical Society of Japan (The Physical Society of Japan (JPS)) 69 ( 1 ) 356 - 356 2014.03

ISSN 1342-8349

CiNii Research

Application of Adiabatic piston problem with dry friction to Heat Engine

Sano Tomohiko, Hayakawa Hisao

Meeting abstracts of the Physical Society of Japan (The Physical Society of Japan (JPS)) 68 ( 2 ) 249 - 249 2013.08

ISSN 1342-8349

CiNii Research

27pXR-8 Jet-induced jamming

Sano Tomohiko, Hayakawa Hisao

Meeting abstracts of the Physical Society of Japan (The Physical Society of Japan (JPS)) 68 ( 1 ) 363 - 363 2013.03

ISSN 1342-8349

CiNii Research

19pAD-1 Three Dimensional Simulation of Granular Jet : Is granular flow really a "perfect fluid?"

Sano Tomohiko, Hayakawa Hisao

Meeting abstracts of the Physical Society of Japan (The Physical Society of Japan (JPS)) 67 ( 2 ) 270 - 270 2012.08

ISSN 1342-8349

CiNii Research

24pBD-3 On the Scattered States of the Granular Jets

Sano Tomohiko, Hayakawa Hisao

Meeting abstracts of the Physical Society of Japan (The Physical Society of Japan (JPS)) 67 ( 1 ) 305 - 305 2012.03

ISSN 1342-8349

CiNii Research

24aGA-1 Scattering Mode Analysis of Granular Jet based on scattering theory

Sano Tomohiko, Hayakawa Hisao

Meeting abstracts of the Physical Society of Japan (The Physical Society of Japan (JPS)) 66 ( 2 ) 292 - 292 2011.08

ISSN 1342-8349

CiNii Research

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