Results 21 to 30 of about 10,644,671 (308)

Exponential stabilization of an Euler-Bernoulli beam under boundary control

open access: yesJournal of Innovative Applied Mathematics and Computational Sciences, 2023
We study the free vibration of an Euler-Bernoulli beam without internal damping. By applying suitable control at the free boundary, we can exponentially dampen these vibrations.
Billal Lekdim
doaj   +1 more source

Stabilization of a nonlinear Euler-Bernoulli viscoelastic beam subjected to a neutral delay [PDF]

open access: yesTheoretical and Applied Mechanics
An approach is implemented in this article to analyze the decay rate of nonlinear beams according to the Euler–Bernoulli equation in the context of rheological viscoelastic damping deformations taking into account the neutral type delay.
Lakehal Ibrahim   +2 more
doaj   +1 more source

Boundary feedback stabilization for a class of distributed-order fractional reaction diffusion systems

open access: yes上海师范大学学报. 自然科学版, 2020
In this paper, the problem of boundary feedback stabilization for a class of distributed-order fractional reaction diffusion systems is studied. Firstly, the stability of the target system is analyzed.
ZHANG Qing, KOU Chunhai, CAI Ruiyang
doaj   +1 more source

A PDE Model Approach to Formation Control of Large-Scale Mobile Sensor Networks with Boundary Uncertainties

open access: yesAxioms, 2022
This paper investigates the formation problem of an array of large-scale mobile sensor networks. A new framework for the dynamic of mobile sensors as a continuum described by the parabolic system with boundary disturbance is proposed.
Xueming Qian, Baotong Cui
doaj   +1 more source

Exact and positive controllability of boundary control systems

open access: yesNetworks & Heterogeneous Media, 2017
Using the semigroup approach to abstract boundary control problems we characterize the space of all exactly reachable states. Moreover, we study the situation when the controls of the system are required to be positive. The abstract results are applied to flows in networks with static as well as dynamic boundary conditions.
ENGEL, KLAUS JOCHEN OTTO   +1 more
openaire   +5 more sources

Boundary Control-Based Finite-Time Passivity for Fractional Spatiotemporal Directed Networks with Multiple Weights

open access: yesFractal and Fractional
This article mainly delves into finite-time passivity and finite-time synchronization of fractional-order spatiotemporal directed networks with multiple weights via boundary control schemes.
Li Zhao, Cheng Hu, Juan Yu
doaj   +1 more source

An Approximation of Solutions for the Problem with Quasistatic Contact in the Case of Dry Friction

open access: yesMathematics, 2021
In this paper, we discuss the question of finding an optimal control for the solutions of the problem with dry friction quasistatic contact, in the case that the friction law is modeled by a nonlocal version of Coulomb’s law.
Nicolae Pop   +2 more
doaj   +1 more source

Optimal Boundary Control of Non-Isothermal Viscous Fluid Flow

open access: yesFluids, 2019
We study an optimal control problem for the mathematical model that describes steady non-isothermal creeping flows of an incompressible fluid through a locally Lipschitz bounded domain.
Evgenii S. Baranovskii   +2 more
doaj   +1 more source

Bridging the Loneliness Gap: Depression, Connectivity, and Isolation in Pediatric Oncology Patients and Their Peers

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Loneliness is associated with adverse physical and mental health outcomes and remains understudied in children and adolescents undergoing cancer therapy. Pediatric oncology patients may be at increased risk due to medical isolation and disruption of social networks.
Charlotte N. Stahlfeld   +5 more
wiley   +1 more source

Boundary conditions optimal control [PDF]

open access: yesThe Journal of the Australian Mathematical Society. Series B. Applied Mathematics, 1989
AbstractA simple rigorous approach is given to finding boundary conditions for the adjoint differential equation in an optimal control problem. The boundary conditions for a time-optimal problem are calculated from the simpler conditions for a fixed-time problem.
openaire   +2 more sources

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