Results 51 to 60 of about 338,480 (190)

Asymptotic Methods in the Theory of Perforated Membrane of Nonhomogeneous Structure

open access: yesEngineering Transactions, 1995
Homogenization equations are constructed for perforated membranes. Asymptotic methods are used for solving the cell problem.
I.V. Andrianov, G.A. Starushenko
doaj  

Homogenization of Attractors to Reaction–Diffusion Equations in Domains with Rapidly Oscillating Boundary: Subcritical Case

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы
We consider the reaction–diffusion system of equations with rapidly oscillating terms in the equation and in boundary conditions in a domain with locally periodic oscillating boundary.
G.F. Azhmoldaev   +3 more
doaj   +1 more source

Explicit Methods for Inverse Source Identification in Transient Diffusion via Truncated Eigenfunction Regularization of Temperature Measurements

open access: yesHeat Transfer, EarlyView.
ABSTRACT This work presents and compares two explicit approaches for estimating space‐ and time‐dependent source terms in parabolic diffusion equations, derived from analytical solutions obtained through the Classical Integral Transform Technique (CITT).
André J. P. de Oliveira   +5 more
wiley   +1 more source

Two-Scale Homogenization of Piezoelectric Perforated Structures

open access: yesMathematics, 2022
We are interested in the homogenization of the elastic-electric coupling equation with rapidly oscillating coefficients, in a periodically perforated piezoelectric body. The holes, whose size are supposed to tend to zero, are periodically distributed. We
Houari Mechkour
doaj   +1 more source

Two Two‐Tier Stochastic Frontier Replications

open access: yesJournal of Applied Econometrics, EarlyView.
ABSTRACT We replicate the two foundational studies which proposed the two‐tier stochastic frontier model, first in the cross‐sectional setting and then for the fixed effects panel data model. We explore matters of software then and now, different mathematical formulations of the likelihood, and alternative current software tools.
Alecos Papadopoulos   +1 more
wiley   +1 more source

COMPUTATION OF EFFECTIVE PROPERTIES IN TWO-PHASE PIEZOCOMPOSITES WITH A RECTANGULAR PERIODIC ARRAY

open access: yesVisión Electrónica, 2014
Based on the Asymptotic Homogenization Method, the electromechanical global behavior of a two-phase piezoelectric unidirectional periodic fibrous composite is investigated.
Ransés Alfonso Rodríguez   +5 more
doaj  

Resonant States Reveal Strong Light–Matter Coupling in Nanophotonic Cavities

open access: yesLaser &Photonics Reviews, EarlyView.
Photonic resonant states reveal characteristics of coupled light–matter systems that would otherwise be hidden by damping. Their trajectories (when tuning the optical resonance) undergo a qualitative change at the onset of strong coupling: They start swapping positions.
Jan David Fischbach   +5 more
wiley   +1 more source

Two-Scale Convergence of Stekloff Eigenvalue Problems in Perforated Domains

open access: yesBoundary Value Problems, 2010
By means of the two-scale convergence method, we investigate the asymptotic behavior of eigenvalues and eigenfunctions of Stekloff eigenvalue problems in perforated domains.
Douanla Hermann
doaj  

Quantum homogenization in non-Markovian collisional model

open access: yesNew Journal of Physics
Collisional models are a category of microscopic framework designed to study open quantum systems. The framework involves a system sequentially interacting with a bath comprised of identically prepared units.
Tanmay Saha, Arpan Das, Sibasish Ghosh
doaj   +1 more source

Real‐Time Observation of Soliton Buildup and Self‐Organization in a GHz Harmonic Mode Locked Fiber Laser

open access: yesLaser &Photonics Reviews, EarlyView.
This image is an experimental recording of the buildup of harmonic mode‐locking in a fiber laser. The horizontal dimension corresponds to one cavity round trip, where the laser field intensity is displayed in a color scale. The vertical dimension is the evolution time in logarithmic scale, spanning from microseconds to seconds.
Qianqian Huang   +6 more
wiley   +1 more source

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