Results 41 to 50 of about 50,631 (294)

Sliding bifurcations and non-determinism in systems with switching [PDF]

open access: yes, 2011
Dynamical events associated with loss of determinacy in piecewise-smooth dynamical systems are reviewed. The causes of non-determinacy are discussed, and the conditions for their occurence in general systems are derived. These events can be characterized
Mike R Jeffrey, Jeffrey, Mike R
core   +1 more source

Universal twinkling exponents for spectral fluctuations associated with mixed chaology [PDF]

open access: yes, 2000
For systems that are neither fully integrable nor fully chaotic, bifurcations of periodic orbits give rise to semiclassically emergent singularities in the fluctuating part Nfl of the energy-level counting function. The bifurcations dominate the spectral
Keating, J. P.   +2 more
core   +4 more sources

Dynamic complexity in a discrete-time predator-prey system with Michaelis-Menten functional response: Gompertz growth of prey [PDF]

open access: yesComputational Ecology and Software, 2020
A discrete-time predator-prey system with Michaelis-Menten functional response and Gompertz growth of prey is examined to reveal its chaotic dynamics.
Sarker Md. Sohel Rana
doaj  

Stability and bifurcations in low inertia PV rich power networks

open access: yesIET Generation, Transmission & Distribution, 2020
The present trend of inserting increasingly more solar photovoltaic (PV) sources into the electricity grid leads to a significant reduction in mechanical inertia. Inertia represents energy reserve in the grid, that inherently and instantaneously supports
Vishnu A. Vinaya Mohanan   +4 more
doaj   +1 more source

Chaotic dynamics and control in a discrete-time predator-prey system with Ivlev functional response [PDF]

open access: yesNetwork Biology, 2020
In this paper, a discrete-time predator-prey system with a functional response of Ivlev type is examined to reveal its chaotic dynamics. We algebraically show that the system undergoes a flip bifurcation and/or Neimark-Sacker (NS) bifurcation in the ...
S. M. Sohel Rana
doaj  

Application of Zero Average Dynamics and Fixed Point Induction Control Techniques to Control the Speed of a DC Motor with a Buck Converter

open access: yesApplied Sciences, 2020
Several technological applications require well-designed control systems to induce a desired speed in direct current (DC) motors. Some controllers present saturation in the duty cycle, which generates variable switching frequency and subharmonics.
Fredy E. Hoyos   +2 more
doaj   +1 more source

Bifurcation of Nonlinear Equations: II. Dynamic Bifurcation [PDF]

open access: yesMethods and Applications of Analysis, 2004
[Part 1 appeared ibid., 155--178 (1994; Zbl 1095.47027), see the preceding review.] The authors study dynamic bifurcation when the eigenvalue of the linearized problem has algebraic multiplicity one or two. As in the first part of the work for steady state bifurcations, their key idea is to analyze precisely the effect of the higher-order nondegenerate
Ma, Tian, Wang, Shouhong
openaire   +3 more sources

Bifurcations in the wake of a thick circular disk [PDF]

open access: yes, 2010
Using DNS, we investigate the dynamics in the wake of a circular disk of aspect ratio χ = d/w = 3(where d is the diameter and w the thickness) embedded in a uniform flow of magnitude U0 perpendicular to its symmetry axis.
Auguste, Franck   +2 more
core   +1 more source

Period-Multiplying Bifurcations in the Gravitational Field of Asteroids

open access: yesAerospace
Periodic orbit families around asteroids serve as potential trajectories for space probes, mining facilities, and deep space stations. Bifurcations of these families provide additional candidate orbits for efficient trajectory design around asteroids ...
P. Rishi Krishna, Joel George Manathara
doaj   +1 more source

The classification of bifurcations with hidden symmetries [PDF]

open access: yes, 2000
We set up a singularity-theoretic framework for classifying one-parameter steady-state bifurcations with hidden symmetries. This framework also permits a non-trivial linearization at the bifurcation point.
Manoel, Míriam, Stewart, Ian
core   +1 more source

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