Results 71 to 80 of about 2,533 (183)
Organization at criticality enables processing of time‐varying signals by receptor networks
Molecular Systems Biology, 2020 How cells utilize surface receptors for chemoreception is a recurrent question spanning between physics and biology over the past few decades. However, the dynamical mechanism for processing time‐varying signals is still unclear.
Angel Stanoev +2 more
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Continuation‐Enhanced Harmonic Balance Method for Nonlinear Dynamics in Rotating Machinery
Shock and Vibration, Volume 2026, Issue 1, 2026.Nonlinear response conception in rotating machinery, particularly in systems with squeeze film dampers (SFDs), pose significant challenges for established time‐domain numerical methods due to bifurcations and critical points along the response trajectories.
Muhammad Umar +3 more
wiley +1 more source
Complex Dynamics in a Singular Delayed Bioeconomic Model with and without Stochastic Fluctuation
Discrete Dynamics in Nature and Society, 2015 A singular delayed biological economic predator-prey system with and without stochastic fluctuation is proposed. The conditions of singularity induced bifurcation are gained, and a state feedback controller is designed to eliminate such bifurcation ...
Xinyou Meng, Qingling Zhang
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International Journal for Numerical Methods in Fluids, Volume 97, Issue 12, Page 1609-1622, December 2025.In this paper, we consider the concept of discretely divergence‐free finite elements (DDFFE) based on the Rannacher–Turek finite element pair to efficiently solve the three‐dimensional incompressible Navier–Stokes equations. For this purpose, we first define a spanning set of DDFFE functions and then characterize a set of basis functions for arbitrary ...
Christoph Lohmann
wiley +1 more source
Non-smooth saddle-node bifurcations II: Dimensions of strange attractors
Ergodic Theory and Dynamical Systems, 2017 We study the geometric and topological properties of strange non-chaotic attractors created in non-smooth saddle-node bifurcations of quasiperiodically forced interval maps. By interpreting the attractors as limit objects of the iterates of a continuous curve and controlling the geometry of the latter, we determine their Hausdorff and box-counting ...
Fuhrmann, G., Gröger, M., Jäger, T.
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气体物理The subcritical transition of wall-bounded shear flows, such as pipe flow and channel flow, is often preceded by localized turbulent structures.
Jianjun TAO, Jiashun GUAN, Linsen ZHANG
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Bifurcation Analysis of a Rigid Impact Oscillator with Bilinear Damping
Shock and Vibration, 2018 This paper studies a rigid impact oscillator with bilinear damping developed as the mechanical model of an impulsive switched system. The stability and the bifurcation of periodic orbits in the impact oscillator are determined by using the mapping ...
Liping Zhang, Haibo Jiang, Yang Liu
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Codimension two and three bifurcations of a predator–prey system with group defense and prey refuge
Nonlinear Analysis, 2015 A predator–prey system with nonmonotonic functional response and prey refuge is considered. We mainly obtain that the system has the bifurcations of cusp-type codimension two and three, these illustrate that the dynamic behaviors of the model with prey ...
Xia Liu, Jinling Wang
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Coulomb-actuated microbeams revisited: experimental and numerical modal decomposition of the saddle-node bifurcation. [PDF]
Microsyst Nanoeng, 2021 Melnikov A +7 more
europepmc +1 more source
The Non-Autonomous Saddle Node Bifurcation
Journal of Computational MathemticaThis work explores the phenomenon of saddle-node bifurcation in both autonomous and non-autonomous dynamical systems. The classical autonomous case is illustrated through a simple differential equation that demonstrates the creation and annihilation of fixed points as a system parameter varies.
Geethalakshmi S +2 more
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