Results 1 to 10 of about 4,762,198 (315)

Differential diffusion driven far-from-equilibrium shape-shifting of hydrogels [PDF]

open access: yesNature Communications, 2021
Synthetic shape-shifting materials typically rely on monotonic evolution between equilibrium states, limiting the shape-shifting behaviours. Here the authors report an unanticipated shape-shifting behaviour for a hydrogel that can be programmed to ...
Yue Zhang   +11 more
doaj   +3 more sources

The Effects of Differential Diffusion on Turbulent Non-Premixed Flames LO2/CH4 under Transcritical Conditions Using Large-Eddy Simulation

open access: yesEnergies, 2023
In this paper, a large-eddy simulation (LES) of turbulent non-premixed LO2/CH4 combustion under transcritical conditions is performed based on the Mascotte test rig from the Office National d’Etudes et de Recherches Ae´rospatiales (ONERA), and the aim is
Siyuan Wang   +3 more
doaj   +2 more sources

Differential diffusion analyzer [PDF]

open access: yesAerosol Science and Technology, 2017
In this article, a proof of concept of a new measurement instrument, differential diffusion analyzer (DDA), is established.
A. Arffman   +3 more
openaire   +2 more sources

Spatial and Temporal Oscillations of Surface Tension Induced by an A + B → C Traveling Front

open access: yesFrontiers in Physics, 2022
This work describes a new mechanism for the emergence of oscillatory dynamics driven by the interaction of hydrodynamic flows and reaction-diffusion processes with no autocatalytic feedback nor prescribed hydrodynamic instability involved.
Reda Tiani, Laurence Rongy
doaj   +1 more source

Reconfigurable Photovoltaic Emulator for Differential Diffusion Charge Redistribution Solar Modules

open access: yesIEEE Open Journal of Industry Applications, 2021
Evaluating, validating, testing, and performing research on hardware components that are connected to actual solar photovoltaic systems can be challenging; photovoltaic emulators are a common practical approach.
Alireza Ramyar, A. Avestruz
semanticscholar   +1 more source

Analysis and Recognition Method of Internet Image Public Opinion Based on Partial Differential Equation

open access: yesAdvances in Mathematical Physics, 2021
This article comprehensively and systematically expounds the development trends and basic theory of partial differential methods, analyzes the characteristics of sampling multiscale transformation in detail, and deeply studies the network image denoising
Yang Zhang
doaj   +1 more source

Existence and stability of traveling waves in parabolic systems of differential equations with weak diffusion

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2022
The aim of the present paper is to investigate of some properties of periodic solutions of a nonlinear autonomous parabolic systems with a periodic condition.
I.I. Klevchuk
doaj   +1 more source

Fast Method for Estimating the Parameters of Partial Differential Equations from Inaccurate Observations

open access: yesMathematics, 2023
In this paper, the problems of estimating the parameters of partial differential equations from numerous observations in the vicinity of some reference points are considered.
Gurami Tsitsiashvili   +2 more
doaj   +1 more source

Advanced Analytic Self-Similar Solutions of Regular and Irregular Diffusion Equations

open access: yesMathematics, 2022
We study the diffusion equation with an appropriate change of variables. This equation is, in general, a partial differential equation (PDE). With the self-similar and related Ansatz, we transform the PDE of diffusion to an ordinary differential equation.
Imre Ferenc Barna, László Mátyás
doaj   +1 more source

On the application of the qualitative theory of differential equations to a problem of heat and mass transfer [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика, 2023
The possibilities of applying the qualitative theory of differential equations to one problem of heat and mass transfer in multilayer planar semiconducting structures are studied. The consideration is carried out on the example of a mathematical model of
Turtin, Dmitry V.   +2 more
doaj   +1 more source

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