Results 81 to 90 of about 306,986 (339)

Elements of Applied Bifurcation Theory

open access: yesApplied Mathematical Sciences, 2023
Y. Kuznetsov
semanticscholar   +1 more source

Manipulating Ferroelectric Topological Polar Structures with Twisted Light

open access: yesAdvanced Materials, EarlyView.
We demonstrate dynamic control of ferroelectric order in quasi‐2D CsBiNb2O7 using twisted ultraviolet light carrying orbital angular momentum. Our approach harnesses non‐resonant multiphoton absorption and induced strain to modulate topological of ferroelectric polarization textures.
Nimish P. Nazirkar   +10 more
wiley   +1 more source

Bifurcation of critical periods of a quintic system

open access: yesElectronic Journal of Differential Equations, 2018
We investigate the critical period bifurcations of the system $$ \dot x = ix + x \bar x ( a x^3 + b x^2 \bar x + \bar x \bar x^2+d \bar x^3) $$ studied in [6].
Valery G. Romanovski   +2 more
doaj  

Dynamics at Infinity, Degenerate Hopf and Zero-Hopf Bifurcation for Kingni-Jafari System with Hidden Attractors

open access: yesInternational Journal of Bifurcation and Chaos in Applied Sciences and Engineering, 2016
To understand the complex dynamics of Kingni–Jafari system with hidden attractors, the first objective of this paper is to study the global dynamics, and give a complete description of the dynamics of Kingni–Jafari system at infinity by using the ...
Zhouchao Wei   +4 more
semanticscholar   +1 more source

A Highly Adaptable Hydrogen Bond Re‐Orientation (HyBRO) Strategy for Multiscale Vasculature Fabrication

open access: yesAdvanced Materials, EarlyView.
A novel hydrogen bond re‐orientation (HyBRO) strategy enables three‐dimensional (3D) printing of vascular microchannel networks with high accuracy. By switching sacrificial material interactions with nonsolvents, HyBRO prevents swelling and deformation, enabling accurate hierarchical channels spanning a tenfold size range.
Zhencheng Liao   +5 more
wiley   +1 more source

Upconversion Nanoparticle‐Covalent Organic Framework Core–shell Particles as Therapeutic Microrobots Trackable With Optoacoustic Imaging

open access: yesAdvanced 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

Symmetry analysis, bifurcation and exact solutions of nonlinear wave equation in semiconductors with strong spatial dispersion

open access: yesElectronic Journal of Differential Equations, 2017
Based on Lie symmetry analysis and steady bifurcation method, we study the nonlinear wave equation in semiconductors with strong spatial dispersion.
Ben Gao, Chunfang He
doaj  

DNA‑Directed Assembly of Photonic Nanomaterials for Diagnostic and Therapeutic Applications

open access: yesAdvanced 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 Bifurcation Analysis of a Three-Species Food Chain Model with Fear

open access: yesInternational Journal of Bifurcation and Chaos in Applied Sciences and Engineering, 2015
In the present paper, we investigate the impact of fear in a tri-trophic food chain model. We propose a three-species food chain model, where the growth rate of middle predator is reduced due to the cost of fear of top predator, and the growth rate of ...
Pijush Panday   +3 more
semanticscholar   +1 more source

Bifurcation at multiple eigenvalues and stability of bifurcating solutions

open access: yesJournal of Functional Analysis, 1984
AbstractIf K is a bounded linear operator from the real Banach space U into the real Banach space V and ƒ:U×R→V has the value zero at (0, 0), the existence and linear stability of the equilibrium solutions of the dynamical system K dudt = ƒ(u, α) which are close to the origin in U×R are studied.
openaire   +2 more sources

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