Results 11 to 20 of about 1,558,332 (335)

Memory Effect and Fractional Differential Dynamics in Planar Microsupercapacitors Based on Multiwalled Carbon Nanotube Arrays

open access: yesEnergies, 2020
The development of portable electronic devices has greatly stimulated the need for miniaturized power sources. Planar supercapacitors are micro-scale electrochemical energy storage devices that can be integrated with other microelectronic devices on a ...
Evgeny P. Kitsyuk   +2 more
doaj   +1 more source

Dispersive Transport Described by the Generalized Fick Law with Different Fractional Operators

open access: yesFractal and Fractional, 2020
The approach based on fractional advection–diffusion equations provides an effective and meaningful tool to describe the dispersive transport of charge carriers in disordered semiconductors.
Renat T. Sibatov, HongGuang Sun
doaj   +1 more source

Network Models and Simulation Analytics for Multi-scale Dynamics of Biological Invasions

open access: yesFrontiers in Big Data, 2022
Globalization and climate change facilitate the spread and establishment of invasive species throughout the world via multiple pathways. These spread mechanisms can be effectively represented as diffusion processes on multi-scale, spatial networks.
Abhijin Adiga   +6 more
doaj   +1 more source

Diffusion-annihilation processes in complex networks [PDF]

open access: yes, 2004
We present a detailed analytical study of the $A+A\to\emptyset$ diffusion-annihilation process in complex networks. By means of microscopic arguments, we derive a set of rate equations for the density of $A$ particles in vertices of a given degree, valid
A. Bekessy   +14 more
core   +7 more sources

Controlled diffusion processes [PDF]

open access: yes, 2005
This article gives an overview of the developments in controlled diffusion processes, emphasizing key results regarding existence of optimal controls and their characterization via dynamic programming for a variety of cost criteria and structural ...
Borkar, Vivek S.
core   +1 more source

Perturbed Skew Diffusion Processes

open access: yesMathematics, 2023
This work investigates whether there uniquely exists a solution to the perturbed skew diffusion process. We construct the solution by iteration and divide the whole time interval into parts on which we disperse the perturbed skew diffusion process into ...
Yingxu Tian, Haoyan Zhang
doaj   +1 more source

Reaction-diffusion processes with nonlinear diffusion [PDF]

open access: yesPhysical Review E, 2012
We study reaction-diffusion processes with concentration-dependent diffusivity. First, we determine the decay of the concentration in the single-species and two-species diffusion-controlled annihilation processes. We then consider two natural inhomogeneous realizations.
openaire   +3 more sources

Diffusion Processes in Turbulent Magnetic Fields [PDF]

open access: yes, 2007
We study of the effect of turbulence on diffusion processes within magnetized medium. While we exemplify our treatment with heat transfer processes, our results are quite general and are applicable to different processes, e.g. diffusion of heavy elements.
Lazarian, Alex
core   +1 more source

Transmission Mechanism and Influencing Factors of Green Behavior in Dynamic Multiplex Networks

open access: yesIEEE Access, 2021
With the global warming, soil erosion and a series of environmental problems are worsening. Green sustainable development has increasingly become a major issue of human concern.
Haofei Yin, Zhiping Wang, Zhaohui Xu
doaj   +1 more source

Tempered Fractional Equations for Quantum Transport in Mesoscopic One-Dimensional Systems with Fractal Disorder

open access: yesFractal and Fractional, 2019
New aspects of electron transport in quantum wires with Lévy-type disorder are described. We study the weak scattering and the incoherent sequential tunneling in one-dimensional quantum systems characterized by a tempered Lévy stable ...
Renat T. Sibatov, HongGuang Sun
doaj   +1 more source

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