Results 21 to 30 of about 61,924 (245)

On a Singular Non local Fractional System Describing a Generalized Timoshenko System with Two Frictional Damping Terms

open access: yesFractal and Fractional, 2023
This paper concerns a nonhomogeneous singular fractional order system, with two frictional damping terms. This system can be considered as a generalization of the so-called Timoshenko system.
Said Mesloub, Reem K. Alhefthi
doaj   +1 more source

A nonlocal eigenvalue problem and the stability of spikes for reaction-diffusion systems with fractional reaction rates [PDF]

open access: yes, 2003
We consider a nonlocal eigenvalue problem which arises in the study of stability of spike solutions for reaction-diffusion systems with fractional reaction rates such as the Sel'kov model, the Gray-Scott system, the hypercycle Eigen and Schuster ...
Winter, M   +3 more
core   +1 more source

Cluster-Based Tensorial Semisupervised Discriminant Analysis for Feature Extraction of SAR Images

open access: yesIEEE Access, 2019
Several features have been developed to characterize the land cover in synthetic aperture radar (SAR) data with speckle noise. Feature extraction has become an essential task for SAR image processing.
Xiaoying Wu   +4 more
doaj   +1 more source

A Perturbation Approach for Lateral Excited Vibrations of a Beam-like Viscoelastic Microstructure Using the Nonlocal Theory

open access: yesApplied Sciences, 2021
In this paper, we investigate the lateral vibration of fully clamped beam-like microstructures subjected to an external transverse harmonic excitation. Eringen’s nonlocal theory is applied, and the viscoelasticity of materials is considered.
Cheng Li   +3 more
doaj   +1 more source

Comparison of holographic photopolymer materials by use of analytic nonlocal diffusion models [PDF]

open access: yes, 2002
The one-dimensional diffusion equation governing holographic grating formation in photopolymers, which includes both nonlocal material response and generalized dependence of the rate of polymerization on the illuminating intensity, has been previously ...
Lawrence, Justin R.   +3 more
core   +1 more source

A Sparsity-Based InSAR Phase Denoising Algorithm Using Nonlocal Wavelet Shrinkage

open access: yesRemote Sensing, 2016
An interferometric synthetic aperture radar (InSAR) phase denoising algorithm using the local sparsity of wavelet coefficients and nonlocal similarity of grouped blocks was developed.
Dongsheng Fang   +4 more
doaj   +1 more source

Qualitative Aspects in Nonlocal Dynamics

open access: yes, 2023
In this paper, we investigate, through numerical studies, the dynamical evolutions encoded in a linear one-dimensional nonlocal equation arising in peridynamics.
Dipierro S.   +5 more
core   +1 more source

Polarimetric SAR Image Segmentation Based on Nonlocal and Region-Level Conditional Random Field Model With Edge Preserved

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Polarimetric Synthetic Aperture Radar (SAR) image segmentation faces three persistent challenges in current methodologies: generation of spurious isolated pixels due to speckle noise interference, limited adaptability to multiscale targets, and ...
Sutong Wang, Chun Liu, Jian Yang
doaj   +1 more source

Discrete Radiative Modes in Plasmonic Nonlocal Flat Surfaces

open access: yesPhotonics
This paper provides a comprehensive study of the nonlocality-influenced radiative modes above the light line in the plasmonic nonlocal flat surface, including the plasmonic/dielectric interface, ultrathin plasmonic slab, and plasmonic/dielectric ...
Ao Ding   +8 more
doaj   +1 more source

Gradient models in molecular biophysics: progress, challenges, opportunities

open access: yesJournal of the Mechanical Behavior of Materials, 2013
In the interest of developing a bridge between researchers modeling materials and those modeling biological molecules, we survey recent progress in developing nonlocal-dielectric continuum models for studying the behavior of proteins and nucleic acids ...
Bardhan Jaydeep P.
doaj   +1 more source

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