Results 71 to 80 of about 747,954 (250)

Complex dynamics of a nonlinear discrete predator-prey system with Allee effect

open access: yesOpen Mathematics
The transition between strong and weak Allee effects in prey provides a simple regime shift in ecology. In this article, we study a discrete predator-prey system with Holling type II functional response and Allee effect. First, the number of fixed points
Wang Jing, Lei Ceyu
doaj   +1 more source

Dynamical Analysis and Control of a Chaotic Microelectromechanical Resonator Model

open access: yesShock and Vibration, 2018
The dynamic analysis and control of a nonlinear MEM resonator system are considered. Phase diagram, bifurcation diagram, and the 0-1 test are applied to the analysis of the influence of the parameters on the dynamics of the system, whose parameters are ...
Dailhane G. Bassinello   +3 more
doaj   +1 more source

Coarse Brownian Dynamics for Nematic Liquid Crystals: Bifurcation Diagrams via Stochastic Simulation [PDF]

open access: yes, 2002
We demonstrate how time-integration of stochastic differential equations (i.e. Brownian dynamics simulations) can be combined with continuum numerical bifurcation analysis techniques to analyze the dynamics of liquid crystalline polymers (LCPs ...
C. I. Siettos   +3 more
core   +1 more source

Experimental bifurcation-cascade diagram of an external-cavity semiconductor laser.

open access: yesOptics Express, 2014
This Letter is the first to report experimental bifurcation diagrams of an external-cavity semiconductor laser (ECSL) in the low-to-moderate current injection regime and long-cavity case.
Byungchil Kim   +3 more
semanticscholar   +1 more source

Chaotic Transport and Current Reversal in Deterministic Ratchets

open access: yes, 1999
We address the problem of the classical deterministic dynamics of a particle in a periodic asymmetric potential of the ratchet type. We take into account the inertial term in order to understand the role of the chaotic dynamics in the transport ...
Mateos, Jose L.
core   +1 more source

Coexisting periodic attractors in injection locked diode lasers [PDF]

open access: yes, 1997
We present experimental evidence for coexisting periodic attractors in a semiconductor laser subject to external optical injection. The coexisting attractors appear after the semiconductor laser has undergone a Hopf bifurcation from the locked steady ...
A Gavrielides   +14 more
core   +2 more sources

Research of the Bifurcation Characteristic of Helical Gear System with Considering Random Perturbation of Mesh Stiffness

open access: yesJixie chuandong, 2019
In order to study the influence of the random perturbation of time-varying mesh stiffness on the dynamics of the helical gearing system, based on Newton's law, a stochastic dynamics model of a six-degree-of-freedom helical gear system is established and ...
Yiyi Tou   +4 more
doaj  

Bifurcation Diagram of the Model of a Lagrange Top with a Vibrating Suspension Point

open access: yesMathematics, 2023
The article considers a model system that describes a dynamically symmetric rigid body in the Lagrange case with a suspension point that performs high-frequency oscillations. This system, reduced to axes rigidly connected to the body, after the averaging
Pavel E. Ryabov, Sergei V. Sokolov
doaj   +1 more source

Are Forest Fires Predictable?

open access: yes, 2002
Dynamic mean field theory is applied to the problem of forest fires. The starting point is the Monte Carlo simulation in a lattice of million cells. The statistics of the clusters is obtained by means of the Hoshen--Kopelman algorithm.
Kaczanowska, S.   +2 more
core   +1 more source

Design of Positive, Negative, and Alternating Sign Generalized Logistic Maps

open access: yesDiscrete Dynamics in Nature and Society, 2015
The discrete logistic map is one of the most famous discrete chaotic maps which has widely spread applications. This paper investigates a set of four generalized logistic maps where the conventional map is a special case.
Wafaa S. Sayed   +2 more
doaj   +1 more source

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