نتایج جستجو برای: uncertain parameters

تعداد نتایج: 634186  

Journal: :SIAM/ASA Journal on Uncertainty Quantification 2021

We consider an optimal control problem (OCP) for a partial differential equation (PDE) with random coefficients. The function is deterministic, distributed forcing term that minimizes expected quadratic regularized loss functional. For the numerical approximation of this PDE-constrained OCP, we replace expectation in objective functional by suitable quadrature formula and, eventually, discretiz...

Journal: :SCIENTIA SINICA Physica, Mechanica & Astronomica 2018

M. Roozbahan,

Some structural control systems have been devised to protect structures against earthquakes, which the tuned mass damper (TMD) being one of the earliest. The effect of a tuned mass damper depends on its properties, such as mass, damping coefficient, and stiffness. The parameters of tuned mass dampers need to be tuned based on the main system and applied load. In most of the papers, the paramete...

Multistage stochastic programming is a key technology for making decisions over time in an uncertain environment. One of the promising areas in which this technology is implementable, is medium term planning of electricity production and trading where decision makers are typically faced with uncertain parameters (such as future demands and market prices) that can be described by stochastic proc...

In order to catch up with reality, all the macro-decisions related to long-term mining production planning must be made simultaneously and under uncertain conditions of determinant parameters. By taking advantage of the chance-constrained programming, this paper presents a stochastic model to create an optimal strategy for producing bimetallic deposit open-pit mines under certain and uncertain ...

Some of the parameters in issues of the reality world are uncertainty. One of the uncertain problems with the qualitative parameters is economic problems such as bankruptcy problem. In this case, there is a probability of dealing with imprecise concepts including the intervals regarding the official’s viewpoint, organizations’ managers. Accordingly, this article uses the concepts of data envelo...

In this paper, robust optimization of a bi-objective mathematical model in a dynamic cell formation problem considering labor utilization with uncertain data is carried out. The robust approach is used to reduce the effects of fluctuations of the uncertain parameters with regards to all the possible future scenarios. In this research, cost parameters of the cell formation and demand fluctuation...

Journal: :Transactions of the Society of Instrument and Control Engineers 2005

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