Results 1 to 10 of about 9,499 (219)

Optimal Control Problem for Non-linear Degenerate Parabolic Variation Inequality: Solvability and Attainability Issues

open access: yesJournal of Optimization, Differential Equations and Their Applications, 2023
We investigate the optimal control problem with respect to coefficients of the degenerate parabolic variational inequality. Since problems of this type can have the Lavrentieff effect, we consider the optimal control problem in a class of so-called ...
Nina V. Kasimova   +2 more
doaj   +1 more source

Fictitious Controls and Approximation of an Optimal Control Problem for Perona-Malik Equation

open access: yesJournal of Optimization, Differential Equations and Their Applications, 2022
We discuss the existence of solutions to an optimal control problem for the Cauchy-Neumann boundary value problem for the evolutionary Perona-Malik equations. The control variable v is taken as a distributed control.
Peter Kogut   +2 more
doaj   +1 more source

The derivation and interpretation of control coefficients [PDF]

open access: yesBiochemical Journal, 1987
1. Equations for control coefficients are derived by using a method that generates all the control coefficients for a system in a single procedure. This requires solving fewer simultaneous equations than an equivalent method based on ‘control theorems’. 2.
B, Crabtree, E A, Newsholme
openaire   +2 more sources

Complex-coefficient systems in control [PDF]

open access: yes2017 American Control Conference (ACC), 2017
Complex-valued dynamics can be used for modeling rotationally invariant two-input two-output systems and bandpass systems when they are considered in the baseband. In a few instances, control design has been done in the complex domain, which facilitated analysis and synthesis.
Olof Troeng   +2 more
openaire   +1 more source

Investigation of the Stability of the Ball and Beam by the PID Controller [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2021
The purpose of this research is to construct and investigate the stability of the ball and beam control system with PID coefficients derived from the simulation and compare them.
Mojtaba Hadipour   +2 more
doaj   +1 more source

Two Inverse Problems Solution by Feedback Tracking Control

open access: yesAxioms, 2021
Two inverse ill-posed problems are considered. The first problem is an input restoration of a linear system. The second one is a restoration of time-dependent coefficients of a linear ordinary differential equation.
Vladimir Turetsky
doaj   +1 more source

Introducing the Nonlinear State Control Algorithm of the Air Bearing Laboratory Simulator Based on the Gain Coefficients Dependent on the State Variables [PDF]

open access: yesفصلنامه علوم و فناوری فضایی, 2023
In this article, a new approach has been presented in the design of a satellite's status controller using reaction wheels. First, a non-linear controller whose gains depend on the state variables at any moment is proposed.
Alireza Ahangarani Farahani   +2 more
doaj   +1 more source

An application of Phragmén–Lindelöf theorem to the existence of ground state solutions for the generalized Schrödinger equation with optimal control

open access: yesBoundary Value Problems, 2020
In this paper, we develop optimal Phragmén–Lindelöf methods, based on the use of maximum modulus of optimal value of a parameter in a Schrödinger functional, by applying the Phragmén–Lindelöf theorem for a second-order boundary value problems with ...
Chaofeng Zhang, Rong Hu
doaj   +1 more source

Application of multiple regression analysis to study the relationship between eeg rhythms at persons with mental retardation

open access: yesJournal of Education, Health and Sport, 2022
Using the calculation of coefficients of multiple linear regression of two-dimensional correlation, we studied the mutual influences (functional connectivity) between the amplitudes of EEG rhythms in people with mental retardation.
B. Lobasyuk, L. Bartsevich, A. Zamkovaya
doaj   +1 more source

Development of a theoretical model for upright postural control in lower limb prosthesis users

open access: yesScientific Reports, 2021
Methods used to assess quiet standing in unilateral prosthesis users often assume validity of an inverted pendulum model despite this being shown as invalid in some instances.
David F. Rusaw   +5 more
doaj   +1 more source

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