Results 81 to 90 of about 1,323,147 (330)

Attractor and Boundedness of Switched Stochastic Cohen-Grossberg Neural Networks

open access: yesDiscrete Dynamics in Nature and Society, 2016
We address the problem of stochastic attractor and boundedness of a class of switched Cohen-Grossberg neural networks (CGNN) with discrete and infinitely distributed delays.
Chuangxia Huang, Jie Cao, Peng Wang
doaj   +1 more source

Strong Exponential Attractors for Weakly Damped Semilinear Wave Equations

open access: yesJournal of Mathematics, 2020
In this paper, we investigate the longtime dynamics for the damped wave equation in a bounded smooth domain of ℝ3. The exponential attractor is investigated in a strong energy space for the case of subquintic nonlinearity, which is based on the recent ...
Cuncai Liu, Fengjuan Meng, Chang Zhang
doaj   +1 more source

From Nature to Engineering: Mortar Volume and Interfacial Mechanics in Bioinspired Ceramics

open access: yesAdvanced Engineering Materials, EarlyView.
Inspired by natural armors like nacre, this study explores how varying the volume fraction of the soft mortar layer impacts the interfacial strength and toughness of bioinspired ceramics. Experimental and computational analysis reveals that higher mortar volumes increase energy dissipation but reduce interfacial stiffness, offering insights for ...
Ehsan Azad   +4 more
wiley   +1 more source

Longtime Dynamics of The Oregonator System

open access: yes, 2011
In this work the existence and properties of a global attractor for the solution semiflow of the Oregonator system are proved. The Oregonator system is the mathematical model of the famous Belousov-Zhabotinskii reaction.
You, Yuncheng
core   +1 more source

Type-K Exponential Ordering with Application to Delayed Hopfield-Type Neural Networks

open access: yesJournal of Applied Mathematics, 2012
Order-preserving and convergent results of delay functional differential equations without quasimonotone condition are established under type-K exponential ordering.
Bin-Guo Wang
doaj   +1 more source

Dynamical system approach of non-minimal coupling in holographic cosmology

open access: yesNuclear Physics B, 2019
We study the dynamical system approach of non-minimally coupled scalar field to induced gravity on the brane in the framework of holographic cosmology. In this context, we derive the modified Friedmann equation and the equation of motion. The dynamics of
Aatifa Bargach   +2 more
doaj   +1 more source

High‐Temperature Oxidation of the CrFeNi Medium‐Entropy Alloy

open access: yesAdvanced Engineering Materials, EarlyView.
The oxidation behavior of equiatomic CrFeNi MEA is a key issue that determines this material's suitability for high‐temperature application. The understanding of long‐term behavior is even more crucial than short‐term corrosion effects. The alloy is exposed to synthetic air at 1000, 1050, and 1100 °C for 24, 100, and 1000 h and systematically compared ...
Anna Maria Manzoni   +5 more
wiley   +1 more source

Quasi-stability and continuity of attractors for nonlinear system of wave equations

open access: yesNonautonomous Dynamical Systems, 2021
In this paper, we study the long-time behavior of a nonlinear coupled system of wave equations with damping terms and subjected to small perturbations of autonomous external forces.
Freitas M. M.   +4 more
doaj   +1 more source

Exponential attractors for nonautonomous partially dissipative equations

open access: yesDifferential and Integral Equations, 1999
The following problem in a Hilbert space \(H\) is considered: \(u'(t)={\mathcal G} (\alpha ,t,u(t)),\) \(t>\tau ,\) \(u(\tau)=u_\tau \in H,\) where \(\tau \in \mathbb{R}\), \(\alpha =(\alpha _1,\dots ,\alpha _k)\) with \(\alpha _i\) rationally independent and \({\mathcal G}(\omega _1,\dots ,\omega _k,\cdot)\) is \(2\pi \)-periodic in each \(\omega _i.\)
Galusinski, C., Hnid, M., Miranville, A.
openaire   +3 more sources

Investigation of Oxide Dispersion Strengthening Effect on the Strength of Diffusion‐Bonded AISI304 Parts

open access: yesAdvanced Engineering Materials, EarlyView.
Experiments for reinforcing the diffusion bonding plane by the oxide dispersion strengthening effect are presented. Small ceramic particles (0.5 and 50 μm, respectively) are incorporated. Furthermore, ceramic particles help to penetrate stable passivation layers, enabling atomic diffusion across bonding planes. Since a ceramic–metallic interface cannot
Thomas Gietzelt   +4 more
wiley   +1 more source

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