Results 31 to 40 of about 183,857 (232)

Existence result for a nonlocal viscous Cahn-Hillard equation with a degenerate mobility [PDF]

open access: yes, 2011
We study a diffusion model of phase field type, consisting of a system of two partial differential equations of second order for the particle densities and the viscosity variable, coupled by a nonlocal drift term.
Farshbaf-Shaker, Hassan   +1 more
core   +1 more source

A nonlocal sinusoidal shear deformation beam theory with application to bending, buckling, and vibration of nanobeams [PDF]

open access: yes, 2012
This paper presents a nonlocal sinusoidal shear deformation beam theory for the bending, buckling, and vibration of nanobeams. The present model is capable of capturing both small scale effect and transverse shear deformation effects of nanobeams, and ...
Thai, Huu-Tai, Vo, Thuc
core   +1 more source

Traveling waves in nonlocal dispersal SIR epidemic model with nonlinear incidence and distributed latent delay

open access: yesAdvances in Difference Equations, 2020
This paper studies the traveling waves in a nonlocal dispersal SIR epidemic model with nonlinear incidence and distributed latent delay. It is found that the traveling waves connecting the disease-free equilibrium with endemic equilibrium are determined ...
Weixin Wu, Zhidong Teng
doaj   +1 more source

A Spatial Framework for Understanding Population Structure and Admixture. [PDF]

open access: yesPLoS Genetics, 2016
Geographic patterns of genetic variation within modern populations, produced by complex histories of migration, can be difficult to infer and visually summarize.
Gideon S Bradburd   +2 more
doaj   +1 more source

Spreading speeds for monostable equations with nonlocal dispersal in space periodic habitats [PDF]

open access: yes, 2020
. The current paper is devoted to the study of spatial spreading dynamics of monostable equations with nonlocal dispersal in spatially periodic habitats. In particular, the existence and characterization of spreading speeds is considered.
Wenxian Shen, Aijun Zhang
core  

Spatial propagation in nonlocal dispersal Fisher-KPP equations

open access: yes, 2021
In this paper we focus on three problems about the spreading speeds of nonlocal dispersal Fisher-KPP equations. First, we study the signs of spreading speeds and find that they are determined by the asymmetry level of the nonlocal dispersal and f′(0 ...
Ruan, Shigui   +5 more
core   +1 more source

Global dynamics of population-toxicant models with nonlocal dispersals

open access: yesAdvances in Nonlinear Analysis
In the article, we first investigate a population-toxicant model with nonlocal dispersal. Compared to the local dispersal (random dispersal), nonlocal dispersal brings some difficulties.
Ma Li, Tang De
doaj   +1 more source

Nonlocal Dispersal Equations and Convergence to Random Dispersal Equations [PDF]

open access: yes, 2014
This dissertation is devoted to the study of the dynamics of nonlocal and random dispersal evolution equations. Dispersal evolution equations are widely used to model the diffusions of organisms or individuals in many biological and ecological systems.
Xie, Xiaoxia
core  

The spreading speed of an SIR epidemic model with nonlocal dispersal

open access: yes, 2021
In this paper, we study an SIR epidemic model with nonlocal dispersal. We study the case with vital dynamics so that a renewal of the susceptible individuals is taken into account.
Jong-Shenq Guo; Amy Ai Ling Poh; Masahiko Shimijo
core   +1 more source

Plasmon‐Enhanced Second‐Harmonic Generation in Atomically Thin Crystalline Silver Nanostructures

open access: yesAdvanced Materials, EarlyView.
Atomically thin crystalline silver films combine vertical quantum confinement with lateral plasmonic field enhancement to boost second‐harmonic generation. Nanoribbon and nanotriangle arrays enable geometry‐tunable infrared plasmon resonances, producing strong SHG from deeply subwavelength metallic volumes compatible with silicon‐based nanophotonics ...
Saad Abdullah   +10 more
wiley   +1 more source

Home - About - Disclaimer - Privacy