Results 11 to 20 of about 2,349,933 (289)

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

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

A content-aware quantisation mechanism for transform domain distributed video coding [PDF]

open access: yes, 2018
The discrete cosine transform (DCT) is widely applied in modern codecs to remove spatial redundancies, with the resulting DCT coefficients being quantised to achieve compression as well as bit-rate control. In distributed video coding (DVC) architectures
Dooley, Laurence S.   +2 more
core   +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

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

A centralized feedback control model for resource management in wireless networks [PDF]

open access: yes, 2007
In a wireless environment, guaranteeing QoS is challenging because applications at multiple devices share the same limited radio bandwidth. In this paper we introduce and study a resource management model for centralized wireless networks, using feedback
B. R. Haverkort   +5 more
core   +8 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

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