Showing 1 - 10 of 195
We revisit stochastic thermodynamics for a system with discrete energy states in contact with a heat and particle reservoir.
Persistent link: https://www.econbiz.de/10011077834
We introduce a weighted-moving-average analysis for the tick-by-tick data of yen–dollar exchange rates. The weights are determined automatically for given data by applying the Yule–Walker formula for autoregressive model. Although the data are non-stationary, the resulting moving average...
Persistent link: https://www.econbiz.de/10010874921
In this paper, the leader-following consensus problem of noise perturbed multi-agent systems with time-varying delays is investigated. We analyze two different cases of coupling topologies: fixed topology and switching topology. Based on the Lyapunov functional and combining with the linear...
Persistent link: https://www.econbiz.de/10010871660
The time-dependent response is studied of a fractional oscillator driven by a Gaussian white noise. Applying the method of characteristic functionals combined with the technique of integral transforms, we derive explicit formulas for the variances of position and velocity and the asymptotic...
Persistent link: https://www.econbiz.de/10010589219
We present a noise-driven model for obtaining the gap and line-width as functions of the temperature in the nonlinear sigma model. The method is phenomenological and rests on the following physical idea: a classical external stochastic field is introduced representing the coupling of the sigma...
Persistent link: https://www.econbiz.de/10010591117
In order to explain the occurrence of a minimum in firing rate which occurs for certain mean input levels μ as noise level σ increases (inverse stochastic resonance, ISR) in Hodgkin–Huxley (HH) systems, we analyze the underlying transitions from a stable equilibrium point to limit cycle and...
Persistent link: https://www.econbiz.de/10011058071
Ecologists have observed that environmental noise affects population variance in the logistic equation for one-species growth. Interactions between deterministic and stochastic dynamics in a one-dimensional system result in increased variance in species population density over time. Since...
Persistent link: https://www.econbiz.de/10011060049
We have analyzed spontaneous discharge dynamics of fusimotor neurons, by applying the so-called detrended fluctuation analysis, which is a modification of the random walk model analysis. Besides, we applied the wavelet analysis method to the same problem. By using these methods we have found...
Persistent link: https://www.econbiz.de/10011062348
We study the interspike intervals (ISI) time series of the spontaneous fusimotor neuron activity by applying the wavelet transform analysis and confirm the existence of the white noise characteristics of the ISI time series. This means that the neuron activity may serve as the requisite noisy...
Persistent link: https://www.econbiz.de/10011062696
We study the interspike intervals (ISI) time series of the spontaneous fusimotor neuron activity by applying the detrended fluctuation analysis that is a modification of the random walk model analysis. Thus, we have found evidence for the white noise characteristics of the ISI time series, which...
Persistent link: https://www.econbiz.de/10011064677