Results 21 to 30 of about 320,011 (310)
Equivalence between volume averaging and moments matching techniques for mass transport models in porous media. [PDF]
, 2010 This paper deals with local non-equilibrium models for mass transport in dual-phase and dual-region porous media. The first contribution of this study is to formally prove that the time-asymptotic moments matching method applied to two-equation models is
Davit, Yohan +5 more
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Mathematical Modelling and Analysis, 2016 We consider averaging methods for solving the 3-D boundary-value problem of second order in multilayer domain. The special hyperbolic and exponential type splines, with middle integral values of piece-wise smooth function interpolation are considered ...
Andris Buikis +2 more
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Functional Analysis and Its Applications, 1995 15 ...
Maltsev, A. Ya., Pavlov, M. V.
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Biofilms in porous media: development of macroscopic transport equations via volume averaging with closure for local mass equilibrium conditions [PDF]
, 2009 In this work, we upscale a pore-scale description of mass transport in a porous medium containing biofilm to develop the relevant Darcy-scale equations.
Quintard, Michel +4 more
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Моделирование и анализ информационных систем, 2014 In this paper we study the asymptotic integration problem in the neighborhood of infinity for a certain class of linear functional differential systems. We construct the asymptotics for the solutions of the considered systems in a critical case.
P. N. Nesterov
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Averaging Methods for Second-Order Differential Equations and Their Application for Impact Systems
Mathematics, 2020 In this paper, we discuss the averaging method for periodic systems of second order and the behavior of solutions that intersect a hyperplane. We prove an averaging theorem for impact systems.
Michal Fečkan, Július Pačuta
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Convergence of the Generalized Volume Averaging Method on a Convection-Diffusion Problem: A Spectral Perspective [PDF]
, 2005 A mixed formulation is proposed and analyzed mathematically for coupled convection-diffusion in heterogeneous medias. Transfer in solid parts driven by pure diffusion is coupled with convection-diffusion transfer in fluid parts.
Plouraboué, Franck +2 more
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Periodic solutions for a class of Duffing differential equations
Moroccan Journal of Pure and Applied Analysis, 2019 We provide sufficient conditions for the existence of periodic solutions for the class of Duffing differential ...
Feddaoui Amina +2 more
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Oscillation Control Algorithms for Resonant Sensors with Applications to Vibratory Gyroscopes
Sensors, 2009 We present two oscillation control algorithms for resonant sensors such as vibratory gyroscopes. One control algorithm tracks the resonant frequency of the resonator and the other algorithm tunes it to the specified resonant frequency by altering the ...
Sung Kyung Hong +3 more
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On Conservative Averaging Method in Spline Applications
Современные информационные технологии и IT-образование, 2020 We consider the conservative averaging method for solving the 3-D boundary-value problem of second order in multilayer domain. Looking back to the history of mathematics, integral parabolic splines relates to conservative averaging method (CAM ...
Harijs Kalis, Ilmars Kangro
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