40 citations · 121 across the 10 of their papers we have counts for
10 papers
Long time scale in Hamiltonian systems with internal degrees of freedom: Numerical study of a diatomic gas
Yoshihiro Watanabe, Nobuko Fuchikami
We performed molecular dynamics simulations on a one-dimensional diatomic gas to investigate the possible long time scale inherent in heterogeneous Hamiltonian systems. The exponen…
Dynamical model of financial markets: fluctuating `temperature' causes intermittent behavior of price changes
Naoki Kozuki, Nobuko Fuchikami
We present a model of financial markets originally proposed for a turbulent flow, as a dynamic basis of its intermittent behavior. Time evolution of the price change is assumed to…
Picture of the low-dimensional structure in chaotic dripping faucets
Ken Kiyono, Tomoo Katsuyama, Takuya Masunaga +1
Chaotic dynamics of the dripping faucet was investigated both experimentally and theoretically. We measured continuous change in drop position and velocity using a high-speed camer…
Taming a Chaotic Dripping Faucet via a Global Bifurcation
Ken Kiyono, Nobuko Fuchikami
We carried out a fluid dynamical simulation for a forced dripping faucet system using a new algorithm that was recently developed. The simulation shows that periodic external forci…
Generalized Amplitude Truncation of Gaussian 1/f^alpha noise
Donghak Choi, Nobuko Fuchikami
We study a kind of filtering, an amplitude truncation with upper and lower truncation levels x_max and x_min. This is a generalization of the simple transformation y(t)=sgn[x(t)],…
Entropy Production and Heat Generation in Computational Processes
Nobuko Fuchikami, Hijiri Iwata, Shunya Ishioka
To make clear several issues relating with the thermodynamics of computations, we perform a simulation of a binary device using a Langevin equation. Based on our numerical results,…