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341
Bifurcation Behavior and Hybrid Controller Design of a 2D Lotka–Volterra Commensal Symbiosis System Accompanying Delay
Published 2023-11-01“…Making use of stability and bifurcation theory of delayed differential equation, we focus on the emergence of bifurcation behavior and stability nature of the formulated delayed Lotka–Volterra commensal symbiosis system. …”
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342
Assessing the dynamics of bifurcation transformations in the economy
Published 2019-01-01“…Therefore, the study aims to quantitatively assess the level of transformations in the social, economic and political development of some European countries (Ukraine, France, Italy) using bifurcation theory for the period of 2000-2017. The proposed scientific and methodological approach to assessing the level of transformations in the social, economic and political development of a particular country involves the step-wise implementation: 1) the formation of an information base for the study, which involves collecting and testing statistical data for anomaly detection using the Irwin method, and selecting relevant indicators affecting the social, political and economic situation based on the principal component analysis; 2) the normalization of indicators of the political, economic and social situation using the Harrington’s approach; 3) the formation of integral indicators of the social, political and economic situation in the country based on the convolution of normalized indicators; 4) the determination of the dynamic properties of the social, political and economic situation in the country by constructing differential equations, which allows determining the existence of a bifurcation type (saddle, focus, node). …”
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343
Eddy viscosity modeling around curved boundaries through bifurcation approach and theory of rotating turbulence
Published 2021“…A novel approach to curvature effects based on the bifurcation theory and rotation turbulence energy spectrum is implemented to improve the sensitivity of the k−ϵ two-equation turbulence model (Jones-Launder form) to curved surfaces. …”
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Journal Article -
344
Schistosomiasis model with treatment, habitat modification and biological control
Published 2022-09-01“…Linearization combined with the Routh-Hurwitz criterion is used to prove the local stability condition of disease-free equilibrium points. Bifurcation theory is applied to investigate the local stability condition of the endemic equilibrium points. …”
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345
Mechanisms of left-right coordination in mammalian locomotor pattern generation circuits: a mathematical modeling view.
Published 2015-05-01“…The model demonstrated a typical left-right alternating pattern under control conditions, switching to a hopping activity at any frequency after removing both V0 connections, a synchronized pattern at low frequencies with alternation at high frequencies after removing only V0D connections, and an alternating pattern at low frequencies with hopping at high frequencies after removing only V0V connections. We used bifurcation theory and fast-slow decomposition methods to analyze network behavior in the above regimes and transitions between them. …”
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346
Review article: Dynamical systems, algebraic topology and the climate sciences
Published 2023-10-01“…The review is thus a trip leading from the applications of classical bifurcation theory to multiple possible climates to the tipping points associated with transitions from one type of climatic behavior to another in the presence of time-dependent forcing, deterministic as well as stochastic.…”
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347
Existence and multiplicity of solutions for second-order Dirichlet problems with nonlinear impulses
Published 2022-11-01“…We show the existence and multiplicity of solutions to the aforementioned problem for λ\lambda in a neighborhood of 1 by using degree theory and bifurcation theory.…”
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348
The role of coastal landforms in tourism development
Published 2003-11-01“…This creates an important and promising bridge between sustainability and bifurcation theory, one of the most important areas of systems analysis.…”
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349
Bifurcation Stability Analysis of the Synchronverter in a Microgrid
Published 2022-10-01“…This work presents a stability analysis of a synchronverter-based system conducted through the bifurcation theory to expose its stability regions in a grid-connected configuration with an aggregate load model conformed by a ZIP model and an induction motor model. …”
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350
Nonlinear dynamic numerical analysis and prediction of complex system based on bivariate cycling time stochastic differential equation
Published 2020-08-01“…The time stochastic parameters and the prediction of cyanobacteria biomass is realized. The bifurcation theory and the central manifold theory were used to analyze the nonlinear dynamics of cyanobacteria growth with double nutrient cycling system, so that the conditions of cyanobacteria bloom and prediction of cyanobacteria blooms are achieved. …”
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351
Longitudinal dynamics, optimization and control of aircraft transition maneuver using aerodynamic vectoring
Published 2012“…Specifically, Multiple Time Scales (MTS) method in conjunction with bifurcation theory is used to uncover the peculiar system behavior and to understand the steady transition dynamics further.…”
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Thesis -
352
Classification of bursting patterns: A tale of two ducks
Published 2022-02-01“…In this review, we propose a comprehensive account of the main bursting classification systems that have been developed over the past 40 years, together with recent developments allowing us to extend these classifications. Based upon bifurcation theory and heavily reliant on timescale separation, these schemes take full advantage of the fast subsystem analysis, obtained when slow variables are frozen and considered as bifurcation parameters. …”
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353
A taxonomy of seizure dynamotypes
Published 2020-07-01“…We introduce an organizing principle that leads to the first objective Taxonomy of Seizure Dynamics (TSD) based on bifurcation theory. The ‘dynamotype’ of a seizure is the dynamic composition that defines its observable characteristics, including how it starts, evolves and ends. …”
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354
Linear and nonlinear stability in nuclear reactors with delayed effects
Published 2013-01-01“…In the nonlinear analysis the analytical expression of the solution is presented with the help of bifurcation theories. In the numerical experiment using the scientific simulation program “Model Maker” numerical Runge–Kutta IV series method asymptotically stable solution and a stable periodic solution has been received and compared to the stable periodic solution received in nonlinear analysis with the help of bifurcation theories.…”
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355
Formation of a Warped Nanomodular Surface Under Ion Bombardment. A Nanoscale Model of Surface Erosion
Published 2015-03-01“…The possibility of a ripple topography is demonstrated by means of bifurcations theory methods for dynamical systems with an infinite dimensional space of initial data. …”
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356
Formation of a Warped Nanomodular Surface Under Ion Bombardment. A Nanoscale Model of Surface Erosion
Published 2012-01-01“…The possibility of a ripple topography is demonstrated by means of bifurcations theory methods for dynamical systems with an infinite dimensional space of initial data. …”
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357
Multiple Solutions in Fluid Dynamics
Published 2009-04-01“…It compliments the current popular bifurcation theories by the fact that multiple solutions can exist on each stable bifurcation branch.…”
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358
The Study of the Development of the Hodgkin-Huxley (HH) Neuron Model
Published 2022-01-01“…It outlines the development of the most accurate but complex HH neuronal model and compares its strengths and weaknesses, introduces emerging developments in neurodynamics and bifurcation theories in terms of optimization, and argues that future developments will not be possible without the participation of multidisciplinary interdisciplinary field. …”
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359
Brief review of the development of theories of robustness, roughness and bifurcations of dynamic systems
Published 2023-04-01“…Further research suggests the development of roughness and bifurcation theories for complex nonlinear dynamical systems.…”
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Article