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Freezing transition in the mean-field approximation model of pedestrian counter flow

Nagatani, Takashi - In: Physica A: Statistical Mechanics and its Applications 388 (2009) 24, pp. 4973-4978

We study the freezing transition in the counter flow of pedestrians within the channel numerically and analytically. We present the mean-field approximation (MFA) model for the pedestrian counter flow. The model is described in terms of a couple of nonlinear difference equations. The...

Persistent link: https://www.econbiz.de/10010872779

Steady-state traffic flow on a ring road with up- and down-slopes

Wu, Chun-Xiu; Zhang, Peng; Wong, S.C.; Choi, Keechoo - In: Physica A: Statistical Mechanics and its Applications 403 (2014) C, pp. 85-93

equilibrium constant states are linearly stable. In other cases, the instability of one or more equilibria could trigger stop …

Persistent link: https://www.econbiz.de/10010873324

Nonlinear instability of charged liquid jets: Effect of interfacial charge relaxation

Elmonem Khalil Elcoot, Abd - In: Physica A: Statistical Mechanics and its Applications 375 (2007) 2, pp. 411-428

A linear and nonlinear study has been made of cylindrical interface, carrying a uniform surface charge in the presence of a finite rate of charge relaxation, is investigated by using multiple scales method. The linear stability flow is analyzed by deriving a dispersion relation for the growth...

Persistent link: https://www.econbiz.de/10011057131

Helical turbulence: Turbulent viscosity and instability of the second moments

Belian, A.; Chkhetiani, O.; Golbraikh, E.; Moiseev, S. - In: Physica A: Statistical Mechanics and its Applications 258 (1998) 1, pp. 55-68

instability of second moments is demonstrated for k<α/ν (k is wave vector, α and ν are proportional to the mean helicity and mean …

Persistent link: https://www.econbiz.de/10011057914

Parametrically modulated oscillator dimer: an analytic solution

Kawai, R.; Lindenberg, Katja; Van den Broeck, C. - In: Physica A: Statistical Mechanics and its Applications 312 (2002) 1, pp. 119-140

reveals a rich panorama of stability–instability boundaries as a function of the system parameters. It was recently … dimer. We present the exact associated instability boundaries and thus improve on earlier ones generated by numerical …

Persistent link: https://www.econbiz.de/10011062257

Numerical irreversibility in self-gravitating small N-body systems, II: Influence of instability affected by softening parameters

Komatsu, Nobuyoshi; Kiwata, Takahiro; Kimura, Shigeo - In: Physica A: Statistical Mechanics and its Applications 388 (2009) 5, pp. 639-650

characteristics of numerical irreversibility, we examine the influence of the instability affected by the softening parameter for the … softened potential (the instability considered here is the instability of a dynamical system in chaos theory, e … decreasing softening parameter. This means that the higher the instability of the system or the higher the separation rate of the …

Persistent link: https://www.econbiz.de/10011063649

One-dimensional modulation instability of wave packets in media with resonant dispersion

Rybak, S.A.; Zozulya, O.M. - In: Physica A: Statistical Mechanics and its Applications 241 (1997) 1, pp. 128-132

Modulation instability of small-amplitude quasimonochromatic wave packets in media containing compact oscillators is … considered. Frequency range of unstable wave-packet propagation is found. It is shown that instability results from resonant long …

Persistent link: https://www.econbiz.de/10010586672

Stability and transition in multiple production lines

Nagatani, Takashi - In: Physica A: Statistical Mechanics and its Applications 334 (2004) 1, pp. 243-254

for the multiple production lines. The nonlinear instability and dynamical transition are investigated by using computer …

Persistent link: https://www.econbiz.de/10010589052

Patterns in hydraulic ripples with binary granular mixtures

Caps, H; Vandewalle, N - In: Physica A: Statistical Mechanics and its Applications 313 (2002) 3, pp. 357-364

An experimental study of a binary granular mixture submitted to a transient shear flow in a cylindrical container is reported. The formation of ripples with a spiral shape is observed. The appearance of phase segregation in those spiral patterns is shown. The relative grain sizé between sand...

Persistent link: https://www.econbiz.de/10010589348

Power-law periodicity in the 2003–2004 crude oil price dynamics

Alvarez-Ramirez, Jose; Ibarra-Valdez, Carlos; Bernabe, … - In: Physica A: Statistical Mechanics and its Applications 349 (2005) 3, pp. 625-640

200% increment, which may indicate that the market instability is becoming stronger. …

Persistent link: https://www.econbiz.de/10010589486