نتایج جستجو برای: electro dynamic maxwells equation
تعداد نتایج: 644614 فیلتر نتایج به سال:
در این پایان نامه یک روش عددی برای حل معادلات کسری-زمانی و کسری-فضایی برگر egin{equation*} d_t^{alpha}u+varepsilon uu_{x}= u u_{xx}+eta d_x^{eta}u, end{equation*} معادله ی کسری-زمانی و کسری-فضایی پوآسن egin{equation*} d_x^{eta}u + d_t^{alpha}u = f(x,t), end{equation*} و معادله ی کسری-زمانی انتشار egin{equation*} d_t^alpha u+u=k abla^2 u + f(x,t), end{equation*} ...
Electro-kinetic fluids can be modeled by hydrodynamic systems describing the coupling between fluids and electric charges. The system consists of a momentum equation together with transport equations of charges. In the dynamics, the special coupling between the Lorentz force in the velocity equation and the material transport in the charge equation gives an energy dissipation law. In stationary...
Developed to address the drawbacks of electro-wetting, electro-dewetting is a digital microfluidic technique that makes liquid dewet on substrate using an electric potential. In this paper, we propose electrohydrodynamic model describe dynamic evolution charged slender drop under influence external field. We introduce lubrication theory simplify and reproduce fundamental operations, including d...
We study the existence of cylindrically symmetric electro-magnetostatic solitary waves for a system of a nonlinear Klein–Gordon equation coupled with Maxwell’s equations in presence of a positive mass and of a nonnegative nonlinear potential. Nonexistence results are provided as well.
Electro-active solids are solids that are either infused with electrorheological fluids or embedded with electrically conducting particles, the body as a whole however conducting negligible current. In this paper, we provide a mathematical framework, within the context of continuum mechanics, for the study of electro-active solids. The theory assumes that the body can be considered as a continu...
Abstract Flexoelectricity is a universal electro-mechanical coupling effect that occurs in dielectrics of all symmetric groups and becomes dominant at the micro- nano-scales. It plays an important role evaluating micro-electro-mechanical systems (MEMS) such as energy harvesters which convert vibrational to electric energy. At finer length scales, micro-inertia effects significantly contribute b...
One of the ways, to control of the drag forces applying to the circular cylinder in the air flow, is control of the generated boundary layer around the cylinder, and one of the new and effective ways for control of the boundary layer, is using high voltage electrostatic field in fluid flow. In these conditions, because of the coupled relations between electric field and momentum equations, th...
Due to considerable stored energy in surfaces of nano-scales in comparison with the stored energy in their bulk, considering the surface energy is necessary for the analysis of various behaviors of nano-scales for more precise design and manufacturing. In this article, the longitudinal dynamic behavior of nanobars in the presence of the surface energy parameters is studied. To this end, the lon...
ISSN: 1070-5511 (Print) 1532-8007 (Online) Journal homepage: http://www.tandfonline.com/loi/hsem20 Dynamic Structural Equation Models Tihomir Asparouhov, Ellen L. Hamaker & Bengt Muthén To cite this article: Tihomir Asparouhov, Ellen L. Hamaker & Bengt Muthén (2017): Dynamic Structural Equation Models, Structural Equation Modeling: A Multidisciplinary Journal To link to this article: https://do...
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