scholarly journals Selection of singular solutions in non-local transport equations

Nonlinearity ◽  
2019 ◽  
Vol 33 (1) ◽  
pp. 325-340
Author(s):  
J Eggers ◽  
M A Fontelos
Keyword(s):  
Transport Equations ◽  
Singular Solutions ◽  
Non Local ◽  
Local Transport ◽  
Selection Of

Automated Image Denoising Model: Contribution Towards Optimized Internal and External Basis

2021 ◽  
pp. 2150051
Author(s):  
S. Elavaar Kuzhali ◽  
D. S. Suresh
Keyword(s):  
Image Denoising ◽  
Image Patch ◽  
The Past ◽  
Local Means ◽  
Hybrid Optimization Algorithm ◽  
Proposed Model ◽  
Processing Step ◽  
Non Local ◽  
Chicken Swarm Optimization ◽  
Selection Of

For handling digital images for various applications, image denoising is considered as a fundamental pre-processing step. Diverse image denoising algorithms have been introduced in the past few decades. The main intent of this proposal is to develop an effective image denoising model on the basis of internal and external patches. This model adopts Non-local means (NLM) for performing the denoising, which uses redundant information of the image in pixel or spatial domain to reduce the noise. While performing the image denoising using NLM, “denoising an image patch using the other noisy patches within the noisy image is done for internal denoising and denoising a patch using the external clean natural patches is done for external denoising”. Here, the selection of optimal block from the entire datasets including internal noisy images and external clean natural images is decided by a new hybrid optimization algorithm. The two renowned optimization algorithms Chicken Swarm Optimization (CSO), and Dragon Fly Algorithm (DA) are merged, and the new hybrid algorithm Rooster-based Levy Updated DA (RLU-DA) is adopted. The experimental results in terms of some relevant performance measures show the promising results of the proposed model with remarkable stability and high accuracy.

scholarly journals Non-Linear Langevin and Fractional Fokker–Planck Equations for Anomalous Diffusion by Lévy Stable Processes

Entropy ◽  
2018 ◽  
Vol 20 (10) ◽  
pp. 760 ◽  
Author(s):  
Johan Anderson ◽  
Sara Moradi ◽  
Tariq Rafiq
Keyword(s):  
Anomalous Diffusion ◽  
Transport Coefficient ◽  
Numerical Solutions ◽  
Distribution Functions ◽  
Space Distribution ◽  
Non Linear ◽  
Non Local ◽  
Local Transport ◽  
Fokker Planck Equations ◽  
Fokker Planck

The numerical solutions to a non-linear Fractional Fokker–Planck (FFP) equation are studied estimating the generalized diffusion coefficients. The aim is to model anomalous diffusion using an FFP description with fractional velocity derivatives and Langevin dynamics where Lévy fluctuations are introduced to model the effect of non-local transport due to fractional diffusion in velocity space. Distribution functions are found using numerical means for varying degrees of fractionality of the stable Lévy distribution as solutions to the FFP equation. The statistical properties of the distribution functions are assessed by a generalized normalized expectation measure and entropy and modified transport coefficient. The transport coefficient significantly increases with decreasing fractality which is corroborated by analysis of experimental data.

scholarly journals Macroscopic laser–plasma interaction under strong non-local transport conditions for coupled matter and radiation

2018 ◽  
Vol 3 (3) ◽  
pp. 110-126 ◽  
Author(s):  
J. Nikl ◽  
M. Holec ◽  
M. Zeman ◽  
M. Kuchařík ◽  
J. Limpouch ◽  
...  
Keyword(s):  
Laser Plasma ◽  
Plasma Interaction ◽  
Laser Plasma Interaction ◽  
Non Local ◽  
Local Transport

scholarly journals Monte Carlo Simulation of Non-Local Transport Effects in Strained Si on Relaxed Si1 – xGex Heterostructures

VLSI Design ◽  
1998 ◽  
Vol 8 (1-4) ◽  
pp. 253-256
Author(s):  
F. Gámiz ◽  
J. B. Roldán ◽  
J. A. López-Villanueva
Keyword(s):  
Monte Carlo ◽  
Performance Enhancement ◽  
Deep Submicron ◽  
Strained Si ◽  
Electron Transport Properties ◽  
Transport Effects ◽  
Non Local ◽  
Local Transport ◽  
Monte Carlo Simulator ◽  
The Impact

Electron transport properties of strained-Si on relaxed Si1 – xGex channel MOSFETs have been studied using a Monte Carlo simulator. The steady- and non-steady-state high-longitudinal field transport regimes have been described in detail. Electronvelocity- overshoot effects are studied in deep-submicron strained-Si MOSFETs, where they show an improvement over the performance of their normal silicon counterparts. The impact of the Si layer strain on the performance enhancement are described in depth in terms of microscopic magnitudes.

Evidence and concepts for non-local transport

1997 ◽  
Vol 39 (12B) ◽  
pp. B173-B188 ◽  
Author(s):  
J D Callen ◽  
M W Kissick
Keyword(s):  
Non Local ◽  
Local Transport

scholarly journals Two-dimensional phonon hydrodynamics in narrow strips

2015 ◽  
Vol 471 (2182) ◽  
pp. 20150376 ◽  
Author(s):  
A. Sellitto ◽  
I. Carlomagno ◽  
D. Jou
Keyword(s):  
Heat Flow ◽  
Heat Transport ◽  
Knudsen Number ◽  
Slip Flow ◽  
Transport Equations ◽  
Two Dimensional ◽  
Non Local

Heat flow along two-dimensional strips as a function of the Knudsen number is examined in two different versions of heat-transport equations with non-local terms, with or without heat slip flow. In both of them, a parabolic heat profile corresponding to the Poiseuille phonon flow may appear in some domains of temperature, or of the Knudsen number, in the transition from the Fourier regime to the ballistic one. The influence of the slip heat flow on such a transition is discussed.

“C’mon, Get Happy”: The Commodification of Linguistic Stereotypes in a Volkswagen Super Bowl Commercial

2017 ◽  
Vol 45 (2) ◽  
pp. 130-156 ◽  
Author(s):  
Qiuana Lopez ◽  
Lars Hinrichs
Keyword(s):  
Primary Objective ◽  
Super Bowl ◽  
Linguistic Ideologies ◽  
Linguistic Performance ◽  
American Television ◽  
Non Local ◽  
Racial Lines ◽  
Jamaican Culture ◽  
Jamaican Creole ◽  
Selection Of

This article examines a national Volkswagen commercial, broadcast on American television during the 2013 Super Bowl, and the intense public debate that met it. It shows a cheerful European American owner of a 2013 Volkswagen Beetle, who despite being from Minnesota speaks in a Jamaican Creole (JC) accent with features of Rastafarian speech. The focus of analysis is the linguistic performance of the JC as well as the linguistic reception by American and Jamaican audience members. The linguistic analysis reveals that the primary objective in how the character uses forms of JC is not linguistic authenticity, but simply to index Jamaican culture and identity through selective feature use. Our discourse analysis of the ad’s reception shows that linguistic ideologies, including ideas about what constitutes linguistic racism, vary widely among American viewers and are generally divided along racial lines. On the other hand, Jamaican viewers were found to have a more homogenous perspective. We conclude that the selection of non-local racialized stereotypes as the target of cross-racial stylization practices complicate, but do not eliminate, modern types of linguistic minstrelsy.

Nonlinear non-local elliptic equation modelling electrostatic actuation

2007 ◽  
Vol 463 (2081) ◽  
pp. 1323-1337 ◽  
Author(s):  
Fanghua Lin ◽  
Yisong Yang
Keyword(s):  
Elliptic Equation ◽  
Boundary Conditions ◽  
Electrostatic Actuation ◽  
Singular Solutions ◽  
Physical Parameters ◽  
Electrostatic Actuators ◽  
Equation Modelling ◽  
Non Local

The nonlinear non-local elliptic equation governing the deflection of charged plates in electrostatic actuators is studied under the pinned and the clamped boundary conditions. Results concerning the existence, construction and approximation, and behaviour of classical and singular solutions with respect to the variation of physical parameters of the equation in various situations are presented.

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