نتایج جستجو برای: mixed formulation
تعداد نتایج: 327290 فیلتر نتایج به سال:
Due to the high randomness and volatility of renewable energy sources such as wind energy, traditional thermal unit commitment (UC) model is no longer applicable. In this paper, in order reduce possible negative effects an inaccurate forecast, chance-constrained programming (CCP) method used study UC problem with uncertainty power generation, chance constraints balance spinning reserve are sati...
a r t i c l e i n f o a b s t r a c t Keywords: Magnetic confinement fusion Halo currents Neumann boundary value problem Elliptic partial differential equations Complementarity Mixed-hybrid formulation Lazy cohomology generators This paper addresses the calculation of the resistive distribution of halo currents in three-dimensional structures of large magnetic confinement fusion machines. A Neu...
Recently a stable pair of finite element spaces for the mixed formulation of the plane elasticity system has been developed by Arnold and Winther. Here we construct a two-level overlapping Schwarz preconditioner for the resulting discrete system. Essentially, this reduces to finding an efficient preconditioner for the form (·, ·) + (div ·,div ·) in the symmetric tensor space H(div ,Ω). The main...
This paper presents a theoretical discussion as well as novel solution algorithms for problems of scattering on smooth two-dimensional domains under Zaremba boundary conditions—for which Dirichlet and Neumann conditions are specified on various portions of the domain boundary. The theoretical basis of the proposed numerical methods, which is provided for the first time in the present contributi...
The interaction of amphiphilic molecules such as lipids and surfactants with the hydrophilic drug carboplatin was investigated to identify suitable self-assembling components for a potential gel-based delivery formulation. (1) H-NMR Studies in sodium bis(2-ethylhexyl) sulfosuccinate (aerosol-OT, AOT)-based reverse micelles show that carboplatin associates and at least partially penetrates the s...
A dual formulation and finite element method is proposed and analyzed for simulating the Stefan problem with surface tension. The method uses a mixed form of the heat equation in the solid and liquid (bulk) domains, and imposes a weak formulation of the interface motion law (on the solidliquid interface) as a constraint. The basic unknowns are the heat fluxes and temperatures in the bulk, and t...
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