Results 11 to 20 of about 806 (167)
Bogdanov–Takens Bifurcation in a Shape Memory Alloy Oscillator with Delayed Feedback
Complexity, 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
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Modelling 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
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Degenerate Bogdanov–Takens bifurcations in a bulk viscous cosmology
European 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
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Bogdanov-Takens bifurcation for neutral functional differential equations
Electronic 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
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M-current induced Bogdanov-Takens bifurcation and switching of neuron excitability class. [PDF]
J 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
Diversity of cells and signals in the cardiovascular system
The 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
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Complexity, 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
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Palaeontology, Volume 65, Issue 3, May/June 2022., 2022 Abstract Bite traces on fossil bones are key to deciphering feeding ecology and trophic interactions of vertebrate past ecosystems. However, similarities between traces produced by different carnivorous taxa with similar dentitions, and misidentifications due to equifinality, hinder confident identifications of the bite makers.
Eudald Mujal +5 more
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On uniqueness of limit cycles in general Bogdanov-Takens bifurcation [PDF]
, 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
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Complexity, Volume 2022, Issue 1, 2022., 2022 In this paper, we put forward a time‐delay ecological competition system with food restriction and diffusion terms under Neumann boundary conditions. For the case without delay, the conditions for local asymptotic stability and Turing instability are constructed.
Feilong Wang +6 more
wiley +1 more source