Results 11 to 20 of about 99,559 (165)

Bogdanov–Takens Bifurcation in a Shape Memory Alloy Oscillator with Delayed Feedback

open access: yesComplexity, 2020
This work is focused on a shape memory alloy oscillator with delayed feedback. The main attention is to investigate the Bogdanov–Takens (B-T) bifurcation by choosing feedback parameters A1,2 and time delay τ.
Jinbin Wang, Lifeng Ma
doaj   +2 more sources

Setting Safe Operation Conditions for Acetyl Chloride Hydrolysis through Dynamic Modelling and Bifurcation Analysis

open access: yesModelling and Simulation in Engineering, 2023
Acetyl chloride hydrolysis is a highly sensitive exothermic reaction that has presented several industrial safety issues. In the present study, a multiparameter mathematical model, previously developed and applied to simulate the oscillatory thermal ...
Juan Carlos Ojeda Toro   +2 more
doaj   +2 more sources

Degenerate Bogdanov–Takens bifurcations in a bulk viscous cosmology

open access: yesEuropean Physical Journal C: Particles and Fields, 2020
Using the dynamical system theory we show that the Friedmann–Robertson–Walker (FRW) cosmological model with bulk viscous fluid in the presence of cosmological constant is equivalent to a degenerate two dimensional Bogdanov–Takens normal form.
Asmaa Abdel Azim   +2 more
doaj   +2 more sources

Bogdanov-Takens bifurcation for neutral functional differential equations

open access: yesElectronic Journal of Differential Equations, 2013
In this article, we consider a class of neutral functional differential equations (NFDEs). First, some feasible assumptions and algorithms are given for the determination of Bogdanov-Takens (B-T) singularity.
Jianzhi Cao, Rong Yuan
doaj   +1 more source

M-current induced Bogdanov-Takens bifurcation and switching of neuron excitability class. [PDF]

open access: yesJ Math Neurosci, 2021
In this work, we consider a general conductance-based neuron model with the inclusion of the acetycholine sensitive, M-current. We study bifurcations in the parameter space consisting of the applied current Iapp, the maximal conductance of the M-current ...
Al-Darabsah I, Campbell SA.
europepmc   +2 more sources

Bifurcação de bogdanov-takens em um modelo de sistema elétrico de potência [PDF]

open access: yes, 2023
In this work is studied the Bogdanov-Takens bifurcation in an electric power system model consisting of a static compensator and two synchronous generators feeding an electric load compound of a static parcel and a dynamic parcel.
BRAGA, Denis de Carvalho
core   +1 more source

Diversity of cells and signals in the cardiovascular system

open access: yesThe Journal of Physiology, Volume 601, Issue 13, Page 2547-2592, 1 July 2023., 2023
Abstract figure legend This white paper discusses the cell diversity, co‐ordination and interaction patterns that are critical for robust cardiovascular function. We identify the major cell types and signals involved in cardiovascular function and emphasize the complexity at the subcellular, cellular and system levels that motivate both challenges and ...
Eleonora Grandi   +17 more
wiley   +1 more source

On uniqueness of limit cycles in general Bogdanov-Takens bifurcation [PDF]

open access: yes, 2018
In this paper we present a complete study to the well-known Bogdanov-Takens bifurcation and give a rigorous proof for the uniqueness of limit ...
Han, Maoan, Yang, Junmin, Llibre, Jaume
core   +1 more source

Spatiotemporal Tipping Induced by Turing Instability and Hopf Bifurcation in a Population Ecosystem Model with the Fear Factor

open access: yesComplexity, Volume 2023, Issue 1, 2023., 2023
Population ecosystems can display the tipping points at which extinctions of species happens. To predict the appearance of tipping points and to understand their evolution mechanism are of uttermost importance for ecological balance. Using techniques from bifurcation theory, we can predict the emergence of tipping points based on a spatiotemporal ...
Min Xiao   +5 more
wiley   +1 more source

Numerical analysis of homoclinic orbits emanating from a Takens-Bogdanov point [PDF]

open access: yes, 1994
Beyn W-J. Numerical analysis of homoclinic orbits emanating from a Takens-Bogdanov point. IMA Journal of Numerical Analysis. 1994;14(3):381-410.It is known that branches of homoclinic orbits emanate from a singular point of a dynamical system with a ...
Beyn, Wolf-Jürgen
core   +1 more source

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