Results 21 to 30 of about 703,458 (267)

ON APPROXIMATION OF STATE-CONSTRAINED OPTIMAL CONTROL PROBLEM IN COEFFICIENTS FOR p-BIHARMONIC EQUATION

open access: yesJournal of Optimization, Differential Equations and Their Applications, 2018
We study a Dirichlet-Navier optimal design problem for a quasi-linear mono- tone p-biharmonic equation with control and state constraints. The coecient of the p-biharmonic operator we take as a design variable in BV ( )\L1( ).
Peter I. Kogut, Olha P. Kupenko
doaj   +1 more source

On relaxation of state-constrained optimal control problem in coefficients for biharmonic equation

open access: yesVìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Modelûvannâ, 2015
We study a Dirichlet optimal control problem for biharmonic equation withcontrol and state constraints. The coecient of the biharmonic operator, the weightu, we take as a control in L1(Ω).
P. I. Kogut, L. V. Voloshko
doaj   +1 more source

On the problem of optimal control in the coefficients of an elliptic equation

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2017
In this paper we consider the optimal control problem for linear elliptic equations of the second order. Control functions are included in the coefficients of the equation for the state, including the coefficients of the highest derivatives.
Rafig K Tagiev, Rena S Kasimova
doaj   +1 more source

On an Optimal -Control Problem in Coefficients for Linear Elliptic Variational Inequality

open access: yesAbstract and Applied Analysis, 2013
We consider optimal control problems for linear degenerate elliptic variational inequalities with homogeneous Dirichlet boundary conditions. We take the matrix-valued coefficients in the main part of the elliptic operator as controls in .
Olha P. Kupenko, Rosanna Manzo
doaj   +1 more source

SHAPE STABILITY OF OPTIMAL CONTROL PROBLEMS IN COEFFICIENTS FOR COUPLED SYSTEM OF HAMMERSTEIN TYPE

open access: yesVìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Modelûvannâ, 2014
In this paper we consider an optimal control problem (OCP) for the coupledsystem of a nonlinear monotone Dirichlet problem with matrix-valued L∞(Ω;RN×N)-controls in coecients and a nonlinear equation of Hammerstein type, where solution nonlinearly ...
P. I. Kogut, O. P. Kupenko
doaj   +1 more source

The Hydrodynamic Coefficient Analysis and Motion Control of the Lingyun Moveable Lander

open access: yesGeofluids, 2021
A moveable lander has the advantages of low cost and strong controllability and is gradually becoming an effective autonomous ocean observation platform.
Guoxin Li, Shaowei Zhang
doaj   +1 more source

Synthesis of Control and State Observer for Weakly Nonlinear Systems Based on the Pseudo-Linearization Technique

open access: yesМоделирование и анализ информационных систем, 2017
In this paper, an approach to the construction of nonlinear output tracking control on a finite time interval for a class of weakly nonlinear systems with state-dependent coefficients is considered.
Dmitry A. Makarov
doaj   +1 more source

Neutronic analysis of control rod effect on safety parameters in Tehran Research Reactor

open access: yesNuclear Engineering and Technology, 2018
The measurement and calculation of neutronic parameters in nuclear research reactors has an important influence on control and safety of the nuclear reactor. The power peaking factors, reactivity coefficients and kinetic parameters are the most important
Mina Torabi   +3 more
doaj   +1 more source

Approximation of an Optimal BV -Control Problem in the Coefficient for the p(x)-Laplace Equation

open access: yesJournal of Optimization, Differential Equations and Their Applications
We study a Dirichlet optimal control problem for a quasilinear monotone elliptic equation with the so-called weighted p(x)-Laplace operator. The coefficient of the p(x)-Laplacian, the weight u, we take as a control in BV (Ω) ∩ L∞(Ω).
Ismail Aydin, Peter Kogut
doaj   +1 more source

Parent Quality of Life at Two Years Following Their Child's Completion of Acute Lymphoblastic Leukemia Treatment

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Parents of children treated for acute lymphoblastic leukemia (ALL) often experience significant caregiver burden and disruption to their well‐being. While parent quality of life (QoL) during treatment is well characterized, little is known about outcomes during early survivorship.
Sara Dal Pra   +3 more
wiley   +1 more source

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