Results 21 to 30 of about 52,502 (264)

Analysis of stationary points and their bifurcations in the ABC -flow [PDF]

open access: yesApplied Mathematics and Computation, 2018
Analytical expressions for coordinates of stationary points and conditions for their existence in the ABC flow are received. The type of the stationary points is shown analytically to be saddle-node. Exact expressions for eigenvalues and eigenvectors of the stability matrix are given.
A. A. Didov, M. Yu. Uleysky
openaire   +2 more sources

A universal bifurcation mechanism arising from progressive hydroelastic waves

open access: yesTheoretical and Applied Mechanics Letters, 2022
A unidirectional, weakly dispersive nonlinear model is proposed to describe the supercritical bifurcation arising from hydroelastic waves in deep water.
Zhan Wang
doaj   +1 more source

Equilibrium Point Bifurcation and Singularity Analysis of HH Model with Constraint

open access: yesAbstract and Applied Analysis, 2014
We present the equilibrium point bifurcation and singularity analysis of HH model with constraints. We investigate the effect of constraints and parameters on the type of equilibrium point bifurcation.
Xinhe Zhu, Zhiqiang Wu
doaj   +1 more source

FUNDAMENTAL MODELS OF STRUCTURAL STABILITY

open access: yesRudarsko-geološko-naftni Zbornik, 2017
In this paper, basic structural stability phenomena are described. After some general comments about stability in the field of civil engineering, four elementary sources of nonlinearity are mentioned: of equilibrium equations, strain (geometry) relations,
Antonia Jaguljnjak Lazarević   +2 more
doaj   +1 more source

Multi-parameter uncertainty analysis of a bifurcation point [PDF]

open access: yesNonlinear Processes in Geophysics, 2006
Parameter uncertainty analysis of climate models has become a standard approach for model validation and testing their sensitivity. Here we present a novel approach that allows one to estimate the robustness of a bifurcation point in a multi-parameter ...
B. Knopf, M. Flechsig, K. Zickfeld
doaj  

Investigation of Early Warning Indexes in a Three-Dimensional Chaotic System with Zero Eigenvalues

open access: yesEntropy, 2020
A rare three-dimensional chaotic system with all eigenvalues equal to zero is proposed, and its dynamical properties are investigated. The chaotic system has one equilibrium point at the origin.
Lianyu Chen   +4 more
doaj   +1 more source

Dynamic Behaviors of a Two-Degree-of-Freedom Impact Oscillator with Two-Sided Constraints

open access: yesShock and Vibration, 2021
The dynamic model of a vibroimpact system subjected to harmonic excitation with symmetric elastic constraints is investigated with analytical and numerical methods.
Songtao Li, Qunhong Li, Zhongchuan Meng
doaj   +1 more source

Modelling stem cell differentiation related processes—A practical overview for biologists

open access: yesFEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar   +4 more
wiley   +1 more source

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

open access: yesFEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei   +3 more
wiley   +1 more source

On the application of Newton's and Chord methods to bifurcation problems

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1994
This paper is concerned with the applications of Newton's and chord methods in the computations of the bifurcation solutions in a neighborhood of a simple bifurcation point for prescribed values of the bifurcation parameter.
M. B. M. Elgindi
doaj   +1 more source

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