Results 101 to 110 of about 1,264,156 (319)

Nonlinear Absorptions

open access: yesJournal of Functional Analysis, 1993
Let \(A\) be an \(m\)-completely accretive operator in \(L^ 1(\Omega)\), where \((\Omega,{\mathcal B},\mu)\) is a \(\sigma\)-finite measure space. Let \(j: \Omega\times\mathbb{R}\to [0,\infty]\) be measurable in \(x\in\Omega\), convex and lower semicontinuous in \(r\in\mathbb{R}\), with \(j(x,0)=0\).
Benilan, P., Wittbold, P.
openaire   +2 more sources

Longitudinal Changes in Adiposity after a Youth Sport‐Related Knee Injury: Informing Post‐Traumatic Osteoarthritis Prevention

open access: yesArthritis Care &Research, Accepted Article.
Objective Youth who experience a sport‐related knee injury have elevated odds of overweight or obesity in 3‐10 years, compounding their risk for post‐traumatic osteoarthritis (PTOA). To inform prevention strategies, this study compared patterns of adiposity change between youth with a sport‐related knee injury and uninjured youth in the 2‐year period ...
Justin M. Losciale   +6 more
wiley   +1 more source

Nonlinear control systems design selected papers from the IFAC Symposium, Capri, Italy, 14-16 June 1989 [PDF]

open access: yes, 1990
In the last two decades, the development of specific methodologies for the control of systems described by nonlinear mathematical models has attracted an ever increasing interest.
Isidori, Alberto   +2 more
core  

Lyapunov-type inequalities for nonlinear impulsive systems with applications

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2016
We obtain new Lyapunov-type inequalities for systems of nonlinear impulsive differential equations, special cases of which include the impulsive Emden-Fowler equations and half-linear equations.
Zeynep Kayar, Agacik Zafer
doaj   +1 more source

A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems

open access: yesInternational Journal of Adaptive Control and Signal Processing, Volume 39, Issue 3, Page 566-581, March 2025.
A Q‐learning algorithm to solve the two‐player zero‐sum game problem for nonlinear systems. ABSTRACT This paper deals with the two‐player zero‐sum game problem, which is a bounded L2$$ {L}_2 $$‐gain robust control problem. Finding an analytical solution to the complex Hamilton‐Jacobi‐Issacs (HJI) equation is a challenging task.
Afreen Islam   +2 more
wiley   +1 more source

Solitons for the nonlinear Klein-Gordon equation [PDF]

open access: yes, 2010
In this paper we study existence and orbital stability for solitary waves of the nonlinear Klein-Gordon equation. The energy of these solutions travels as a localized packet, hence they are a particular type of solitons.
Benci, Vieri   +4 more
core  

Adaptive Observer for Coupled Wave PDE and Infinite ODE With Sampled Data and Unknown Input: Application to Brain Hemodynamics Estimation

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
This article proposes a convergent adaptive observer for a damped wave PDE and an infinite‐dimensional ODE coupled in cascade using sampled‐in‐space ODE state measurements. The proposed observer estimates the distributed states of the PDE and ODE along with unknown PDE parameters and spatial input.
Zehor Belkhatir   +2 more
wiley   +1 more source

Maximum principle for a nonlinear size-structured model of fish and fry management [PDF]

open access: yes, 2018
This paper investigates the maximum principle for a nonlinear size-structured model that describes the optimal management of the fish resources taking into account harvesting the fish and putting the fry.
Liu, Rong, Liu, Guirong
core   +2 more sources

Experimental investigation of global stability against hunting oscillation using a real bogie

open access: yesNihon Kikai Gakkai ronbunshu, 2018
Hunting oscillation is unfavorable to the running stability because it can generate relatively large lateral force between the wheels and tracks. In addition, once hunting oscillation occurs, it lasts until the running speed is reduced to some degree ...
Yusuke YAMANAGA, Nobuyuki WATANABE
doaj   +1 more source

Observer‐Based Adaptive Event‐Triggered Tracking Control for Fuzzy TS Systems With Premise Mismatch

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
This paper presents an adaptive logistic event‐triggered observer‐based tracking controller for Takagi‐Sugeno fuzzy systems under constrained inputs and network delays. Leveraging a hybrid LMI and Secretary Bird Optimization approach, this strategy significantly minimizes communication overhead and computational burden while ensuring optimal reference ...
Oussama Djadane   +3 more
wiley   +1 more source

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