Results 101 to 110 of about 16,736 (301)
Structured pseudospectra in structural engineering [PDF]
, 2005 This paper presents a new method for computing the pseudospectra of a matrix that respects a prescribed sparsity structure. The pseudospectrum is defined as the set of points in the complex plane to which an eigenvalue of the matrix can be shifted by a ...
Wagenknecht, T, Agarwal, J
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Advanced Functional Materials, EarlyView.Sulfur‐doped graphitized carbon nanofibers act as adaptive catalyst–support platforms, enabling dynamic sulfur‐mediated reconstruction and strong metal–support interactions. This unique behavior enhances catalyst stability and controls reaction pathways, achieving highly selective urea oxidation (∼92% N2) coupled with efficient hydrogen evolution ...
Melanie Guillén‐Soler +4 more
wiley +1 more source
Singular perturbation in a nonlocal diffusion problem [PDF]
, 2020 . We study a singular perturbation problem for a nonlocal evolution operator. The problem appears in the analysis of the propagation of flames in the high activation energy limit, when admitting nonlocal effects.
Noemi Wolanski, Claudia Lederman
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Some Remarks on Anisotropic Singular Perturbation Problems [PDF]
, 2008 The goal of this note is to study anisotropic singular elliptic perturbation problems. We will investigate in particular the asymptotic behaviour of the solution in the case of an anisotropic elastic membrane and in the case of an anisotropic ...
Chipot, M, Michel Chipot
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Advanced Functional Materials, EarlyView.Photoaligned and photopatterned liquid crystal platforms provide programmable control of optical phase, polarization, and spin‐orbit interactions, enabling compact generation of structured light and complex wavefronts. This review highlights how tailored molecular orientations transform simple beams into designed optical fields, opening versatile ...
Le Zhou +6 more
wiley +1 more source
Singular perturbation theorems for semibounded operators [PDF]
, 1971 Rate of convergence theorems are proven for eigenvalues and eigenvectors of an operator formally given by Aψμμψμ=(ψA+μL+B)μψ,μ=γψμμψμ, where A, B, b are lower semibounded, to those of B as ϵ and μ decrease to zero.
Greenlee, W.M.
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A singular perturbation result for a class of periodic-parabolic BVPs
Open MathematicsIn this article, we obtain a very sharp version of some singular perturbation results going back to Dancer and Hess [Behaviour of a semilinear periodic-parabolic problem when a parameter is small, Lecture Notes in Mathematics, Vol. 1450, Springer-Verlag,
Cano-Casanova Santiago +2 more
doaj +1 more source
Multi-Scale-Matching neural networks for thin plate bending problem
Theoretical and Applied Mechanics LettersPhysics-informed neural networks are a useful machine learning method for solving differential equations, but encounter challenges in effectively learning thin boundary layers within singular perturbation problems.
Lei Zhang, Guowei He
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Modular cell biology: retroactivity and insulation
Molecular Systems Biology, 2008 Modularity plays a fundamental role in the prediction of the behavior of a system from the behavior of its components, guaranteeing that the properties of individual components do not change upon interconnection.
Domitilla Del Vecchio +2 more
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Advanced Functional Materials, EarlyView.Yttrium doping in Sb‐alloyed BiSe synergistically induces Bi vacancies and flattens conduction bands, simultaneously slashing lattice thermal conductivity by 50% and boosting the power factor. The optimized n‐type Bi0.64Sb0.3Y0.06Se delivers a peak zT of 0.91 at 393 K (average zT 0.76, 300–523 K) and an 8‐pair module with 4.6% conversion efficiency ...
Wenhao Xie +16 more
wiley +1 more source