Results 81 to 90 of about 6,114,153 (354)
Bifurcation theory for the L-H transition in magnetically confined fusion plasmas
, 2012 The mathematical field of bifurcation theory is extended to be applicable to 1-dimensionally resolved systems of nonlinear partial differential equations, aimed at the determination of a certain specific bifurcation.
W. Weymiens +3 more
semanticscholar +1 more source
Advanced Materials, EarlyView.Upconversion nanoparticle‐covalent organic framework core–shell particles provide enhanced contrast for optoacoustic imaging by leveraging the optical absorption of upconversion luminescence within the covalent organic framework matrix. Beyond their role as contrast agents, these particles enable customizable therapeutic agent loading and release, as ...
Dong Wook Kim +8 more
wiley +1 more source
The Modelling and Control of a Singular Biological Economic System in a Polluted Environment
Discrete Dynamics in Nature and Society, 2016 A singular biological economic model with harvesting and stage structure is presented. The local stability of equilibriums of the system is investigated when the economic profit parameter is zero, and the conditions of the singularity induced bifurcation
Yi Zhang, Yueming Jie, Xinyou Meng
doaj +1 more source
Numerical bifurcation and hybrid control of a Gompertz model with time delay
Journal of Hebei University of Science and Technology, 2019 In order to study the stability of species, the biological systems are required to reduce or expand the stable region. For a Gompertz model with time delay, a hybrid control Euler method is proposed in which state feedback and parameter perturbation are ...
Jizhi SONG, Yuanyuan WANG
doaj +1 more source
The Path Formulation of Bifurcation Theory [PDF]
, 1994 We show how the path formulation of bifurcation theory can be made to work, and that it is (essentially) equivalent to the usual parametrized contact equivalence of Golubitsky and Schaeffer.
openaire +4 more sources
DNA‑Directed Assembly of Photonic Nanomaterials for Diagnostic and Therapeutic Applications
Advanced Materials, EarlyView.DNA‐directed assembly offers a powerful strategy for constructing structured photonic nanomaterials with precise spatial control. This review provides a comprehensive overview of recent advancements in DNA‐assembled photonic nanomaterials for diagnostics and therapeutics, highlighting key design principles, functionalization strategies, and optical ...
Longjiang Ding +5 more
wiley +1 more source
Stability and Hopf bifurcation periodic orbits in delay coupled Lotka-Volterra ring system
Open Mathematics, 2019 In this paper, we consider a class of delay coupled Lotka-Volterra ring systems. Based on the symmetric bifurcation theory of delay differential equations and representation theory of standard dihedral groups, properties of phase locked periodic ...
Su Rina, Zhang Chunrui
doaj +1 more source
Advances in Difference Equations, 2019 In this paper, the dynamical behaviors of a discrete-time prey–predator model with Allee effect on the prey population are investigated. The existence and topological classification of the fixed points of the model are analyzed.
Figen Kangalgil
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Singular bifurcations and regularization theory
Physical Review ESeveral nonlinear and nonequilibrium driven as well as active systems (e.g. microswimmers) show bifurcations from one state to another (for example a transition from a non motile to motile state for microswimmers) when some control parameter reaches a critical value.
Alexander Farutin, Chaouqi Misbah
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Coarse Stability and Bifurcation Analysis Using Stochastic Simulators: Kinetic Monte Carlo Examples
, 2001 We implement a computer-assisted approach that, under appropriate conditions, allows the bifurcation analysis of the coarse dynamic behavior of microscopic simulators without requiring the explicit derivation of closed macroscopic equations for this ...
Kevrekidis, Ioannis G. +2 more
core +1 more source