Results 91 to 100 of about 2,013,353 (284)
Abstract and Applied Analysis, 2013 This paper focuses on the stability and oscillations of Euler-Maclaurin method for linear differential equations with piecewise constant arguments .
Qi Wang, Jiechang Wen, Shenshan Qiu
doaj +1 more source
On Quasi-Periodic Solutions of Differential Equations with Piecewise Constant Argument
Journal of Mathematical Analysis and Applications, 2002 It is shown that \[ x'(t)= ax(t)+ \sum^N_{j=-N} a_j x([t+ j])+ f(t)\tag{\(*\)} \] has a unique quasiperiodic (qp) solution \(x\in QP(\omega_1,\dots, \omega_r)\) whenever \(f\in QP(\omega_1,\dots, \omega_r):= \{g:\mathbb{R}\to \mathbb{R}: g\) qp with (rationally independent) frequencies \(\omega_1,\dots, \omega_r\) and absolutely convergent Fourier ...
Küpper, Tassilo, Yuan, Rong
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Advanced Science, EarlyView.A high‐entropy strategy is developed to break the trade‐off between low melting point and high ionic conductivity in molten salt electrolytes. By incorporating CsBr and LiF into the LiCl‐LiBr‐KBr system, the quinary LiF‐LiCl‐LiBr‐KBr‐CsBr electrolyte achieves a record‐low melting point of 229.5°C while maintaining a high conductivity of 1.19 S cm−1 at ...
Binchao Shi +6 more
wiley +1 more source
On chaotic synchronization via impulsive control and piecewise constant arguments
, 2015 This paper is concerned with a system of differential equations with continuous and piecewise constants arguments of a delay type. An application to chaotic systems is presented and the synchronization problem is established, where the output of the ...
Xınzhı, Lıu +2 more
core
Oscillation and Periodicity of a Second Order Impulsive Delay Differential Equation with a Piecewise Constant Argument [PDF]
, 2017 This paper concerns with the existence of the solutions of a second order impulsive delay differential equation with a piecewise constant argument. Moreover, oscillation, nonoscillation and periodicity of the solutions are investigated.
Karakoc, Fatma +5 more
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CoSP: Reconfigurable Metamaterial Inverse Design via Contrastive Pretrained Large Language Model
Advanced Science, EarlyView.In this work, CoSP (contrastive multi‐state pretrain), an intelligent inverse design method for reconfigurable metamaterials based on a contrastive pretrained large language model, is proposed. Numerical experiments demonstrate that CoSP can design reconfigurable metamaterial structures for multi‐state, multi‐band optical responses, showing great ...
Shujie Yang +4 more
wiley +1 more source
New contractivity condition in a population model with piecewise constant arguments [PDF]
, 2008 In this paper, we improve contractivity conditions of solutions for the positive equilibrium N∗=1a+∑i=0mbi of the following differential equation with piecewise constant arguments:{dN(t)dt=N(t)r(t){1−aN(t)−∑i=0mbiN(n−i)},n⩽t0andN(−j)=N−j⩾0,j=1,2,…,m ...
Muroya, Yoshiaki, Yoshiaki Muroya
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Robust Stitching Interface and Deep Learning Empowered Hydrogel Human‐Machine Interface
Advanced Science, EarlyView.A molecular design strategy is presented that exploits synergistic carboxylate anion–quaternary ammonium interactions to simultaneously strengthen the hydrogel–PET interface and the bulk hydrogel network. Integrated with deep learning signal processing, the stable hydrogel–PET interface enables consistent signal acquisition and reliable human‐machine ...
Hao Dong +11 more
wiley +1 more source
Advanced Science, EarlyView.Vision begins not with images but with change: the retina fires only when something moves, handing the brain a stream of spikes. A neuromorphic imaging system adopts the same strategy—an event sensor that sees like the retina, a spiking network that thinks like the brain—to track and reconstruct fully randomly moving targets through tissue (phantom ...
Ning Zhang, Arto Nurmikko
wiley +1 more source
Inverse Design of Pre‐Strain via a Predictive Electromechanical Model for Enhanced Strain Sensing
Advanced Science, EarlyView.An analytical electromechanical model rooted in microcrack evolution mechanics is globally calibrated from only eight pre‐strain datasets, enabling prediction of the complete sensing response at untested pre‐strain values within the calibrated design space (R2 > 0.99).
Jia‐Chen Shang +10 more
wiley +1 more source