Results 151 to 160 of about 1,077,728 (350)
Some Remarks on Anisotropic Singular Perturbation Problems
, 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
core +1 more source
Advances in Magnesium‐Based Thermoelectrics: A Critical Review
Advanced Materials, EarlyView.Magnesium‐based thermoelectric materials have emerged as promising candidates for low‐to‐mid‐temperature energy conversion due to their abundance, low cost, and competitive performance. This review summarizes recent advances in Mg3X2, MgAgSb, and Mg2X systems, covering transport mechanisms, fabrication strategies, stability challenges, and device ...
Li‐Min Zhang +5 more
wiley +1 more source
A nonlinear singular perturbation problem
Asymptotic Analysis, 2006 Let F(u ε )+ε(u ε −w)=0 (1) where F is a nonlinear operator in a Hilbert space H, w∈H is an element, and ε>0 is a parameter. Assume that F(y)=0, and F′(y) is not a boundedly invertible operator.
openaire +3 more sources
Singular perturbation theorems for semibounded operators
, 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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Super‐Resolution Ultrasound Based Cell Tracking With Polymeric Nanobubbles
Advanced Materials, EarlyView.This study presents a super‐resolution ultrasound platform for tracking cells in vivo. Biocompatible polymeric nanobubbles are used as highly echogenic intracellular labels. Following the injection of cells and microbubbles, ultrasound localization microscopy (ULM) can dynamically match the microvascular architecture and individual cell trajectories ...
Junlin Chen +19 more
wiley +1 more source
Singular perturbation problem for the incompressible Reynolds equation
Electronic Journal of Differential Equations, 2006 We study the asymptotic behavior of the solution of a Reynolds equation which describe the behavior of the fluid between two closes surfaces as the distance between the two surfaces locally tends to zero.
Ionel Ciuperca +2 more
doaj
Singular perturbations of the dirac hamiltonian
, 2017 This thesis is devoted to the study of the Dirac Hamiltonian perturbed by delta-type potentials andCoulomb-type potentials. We analysed on the delta-shell interaction on bounded and smooth domainsand its approximation by the coupling of the free Dirac operator with shrinking short rangepotentials.Under certain hypothesis of smallness of a regular ...
openaire +3 more sources
Label‐Free Detection of a Neurotransmitter Using an Aptamer‐Functionalized Amorphous IGZO Transistor
Advanced Materials Interfaces, EarlyView.An aptamer‐functionalized amorphous IGZO thin‐film transistor enables label‐free electrical detection of the neurotransmitter serotonin under liquid‐gated operation. Stepwise surface functionalization ensures stable biomolecule integration and efficient electrostatic coupling.
Ngoc Thanh Ho +3 more
wiley +1 more source
Singular perturbation analysis of large-scale power systems
, 1990 This paper reviews some recent results in applying singular perturbation theory to obtain simplified power system models for stability analysis and control design.
Sauer, P. W. +3 more
core +1 more source