Results 31 to 40 of about 12,436,371 (298)

On a kind of time optimal control problem of the heat equation

open access: yesAdvances in Difference Equations, 2018
In this paper, we consider a kind of time-varying bang–bang property of time optimal boundary controls for the heat equation. The time-varying bang–bang property in the interior domain has been considered in some papers, but regarding the time optimal ...
Yifan Zhang
doaj   +1 more source

The minimal seed of turbulent transition in the boundary layer [PDF]

open access: yes, 2011
This paper describes a scenario of transition from laminar to turbulent flow in a spatially developing boundary layer over a flat plate. The base flow is the Blasius non-parallel flow solution; it is perturbed by optimal disturbances yielding the largest
DE PALMA, Pietro   +8 more
core   +1 more source

The Continuous Classical Boundary Optimal Control Vector Governing by Triple Linear Partial Differential Equations of Parabolic Type

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2020
In this paper, the continuous classical boundary optimal control problem (CCBOCP) for triple linear partial differential equations of parabolic type (TLPDEPAR) with initial and boundary conditions (ICs & BCs) is studied. The Galerkin method (GM) is used
Jamil A. Al-Hawasy, Mohammed A. K. Jaber
doaj   +1 more source

Classical Continuous Boundary Optimal Control Vector Problem for Triple Nonlinear Parabolic System

open access: yesAl-Mustansiriyah Journal of Science, 2023
In this paper, our purpose is to study the classical continuous boundary optimal triple control vector problem (CCBOTCVP) dominating by nonlinear triple parabolic boundary value problem (NLTPBVP).
Jamil Amir Ali Al-hawasy   +1 more
doaj   +1 more source

Asymptotics of a solution to an optimal boundary control problem

open access: yesProceedings of the Steklov Institute of Mathematics, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Danilin, A. R., Zorin, A. P.
openaire   +5 more sources

The Continuous Classical Boundary Optimal Control of a Couple Linear Of Parabolic Partial Differential Equations

open access: yesAl-Mustansiriyah Journal of Science, 2018
In this paper the continuous classical boundary optimal problem of a couple linear partial differential equations of parabolic type is studied, The Galerkin method is used to prove the existence and uniqueness theorem of the state vector solution of a ...
Jamil Amir Al-hawasy
doaj   +1 more source

The Classical Continuous Optimal Control for Quaternary Nonlinear Parabolic Boundary Value Problems

open access: yesمجلة بغداد للعلوم, 2023
In this paper, our purpose is to study the classical continuous optimal control (CCOC)  for quaternary nonlinear parabolic boundary value problems (QNLPBVPs). The existence and uniqueness theorem (EUTh) for the quaternary state vector solution (QSVS) of
Jamil A. Ali Al-Hawasy   +1 more
doaj   +1 more source

Comparative Evaluation of Hemodiafiltration, Hemoperfusion, and Standard Hemodialysis on Efficacy, Inflammatory Control, Dialysis Adequacy, and Safety in End‐Stage Renal Disease: A Prospective Observational Study

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic micro‐inflammation in patients with end‐stage renal disease (ESRD) is a significant driver of cardiovascular complications and diminished quality of life. While standard hemodialysis (SHD) effectively manages small‐molecule clearance, its ability to remove medium‐to‐large uremic toxins—the primary catalysts of systemic ...
Hongwei Zuo   +5 more
wiley   +1 more source

Constraints Optimal Control Governing by Triple Nonlinear Hyperbolic Boundary Value Problem

open access: yesJournal of Applied Mathematics, 2020
The focus of this work lies on proving the existence theorem of a unique state vector solution (Stvs) of the triple nonlinear hyperbolic boundary value problem (TNHBVP) when the classical continuous control vector (CCCVE) is fixed by using the Galerkin ...
Jamil A. Ali Al-Hawasy, Lamyaa H. Ali
doaj   +1 more source

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