Results 11 to 20 of about 703,458 (267)

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

Weak optimal controls in coefficients for linear elliptic problems [PDF]

open access: yesRevista Matemática Complutense, 2010
In this paper we study an optimal control problem associated to a linear degenerate elliptic equation with mixed boundary conditions. The equations of this type can exhibit the Lavrentieff phenomenon and non-uniqueness of weak solutions. We adopt the weight function as a control in $L^1( )$.
BUTTAZZO, GIUSEPPE, Kogut, P. I.
openaire   +2 more sources

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

On Optimal Control Problem in Coefficients for Nonlinear Elliptic Variational Inequalities

open access: yesVìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Modelûvannâ, 2011
In this paper we study an optimal control problem for a nonlinear elliptic variational inequality with generalized solenoidal coefficients which we adopt as controls in L°°(fi). We prove the existence of optimal solution of the stated problem.
O. P. Kogut
doaj   +1 more source

Approximate Optimal Control for a Parabolic System with Perturbations in the Coefficients on the Half-Axis

open access: yesAxioms, 2022
In this paper, we use the averaging method to find an approximate solution in the optimal control problem of a parabolic system with non-linearity of the form f(t/ε,y) on an infinite time interval.
Olena A. Kapustian   +3 more
doaj   +1 more source

Control in channelled pathways. A matrix method calculating the enzyme control coefficients [PDF]

open access: yesBiophysical Chemistry, 1995
The usual equations expressing the enzyme control coefficients (quantitative indicators of 'global' control properties of a pathway) via the elasticity coefficients (reflecting local kinetic properties of an enzyme reaction), cannot be applied to a variety of 'non-ideal' pathways, in particular to pathways with metabolic channelling.
Kholodenko, B.N.   +3 more
openaire   +4 more sources

Identification Problem for Nonlinear Gao Beam

open access: yesMathematics, 2020
This paper deals with the identification of coefficients in the nonlinear beam model which was first introduced by D. Y. Gao in 1996. For the identification of coefficients, an optimal control approach is used.
Jana Radová   +2 more
doaj   +1 more source

Asymptotic analysis of optimal control problems on the semiaxes for Carathéodory differential inclusions with fast oscillating coefficients

open access: yesNonlinear Analysis, 2023
We consider an optimal control problem for a differential inclusion of the Carathéodory type affine with respect to the control with a coercive cost functional on a semiaxis and with fast oscillating time-dependent coefficients.
Sergey Dashkovskiy   +3 more
doaj   +1 more source

On existence of optimal controls in coecients for ill-posed nonlinear elliptic Dirichlet boundary value problems with anisotropic p-Laplacian

open access: yesVìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Modelûvannâ, 2016
We study a Dirichlet optimal control problem for a nonlinear elliptic anisotropic p-Laplace equation with control and state constraints. The matrix-valued coecients we take as controls and in the linear part of dierential operator we consider coecients ...
O. P. Kupenko
doaj   +1 more source

Substrate‐Controlled Response Coefficients in Thin Films

open access: yesAdvanced Science
Abstract To obtain materials with desired properties, material compositions are primarily altered, whereas thin films offer additional unique avenues. By combining state‐of‐the‐art first‐principles calculations and experimental investigations of thin films of strontium titanate as an exemplary representative of a broad class of ...
Marina Tyunina   +6 more
openaire   +3 more sources

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