Results 61 to 70 of about 252,881 (314)

A binary quadratic function negative‐determination lemma and its application to stability analysis of systems with two additive time‐varying delay components

open access: yesIET Control Theory & Applications, 2021
This paper concentrates on the stability problem of systems with two additive time‐varying delay components. For the construction of Lyapunov–Krasovskii functional (LKF), in the case that the introduced augmented vector contains the double integral term ...
Meng Liu, Yong He, Lin Jiang
doaj   +1 more source

Some Unsolved Problems in Stability and Optimal Control Theory of Stochastic Systems

open access: yesMathematics, 2022
In spite of the fact that the theory of stability and optimal control for different types of stochastic systems is well developed and very popular in research, there are some simply and clearly formulated problems, solutions of which have not been found ...
Leonid Shaikhet
doaj   +1 more source

The Role of Chemotherapy in Pediatric Myoepithelial Carcinoma: A Systematic Review of the Literature

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Myoepithelial carcinoma (MEC) in pediatric patients is a rare and aggressive malignancy characterized by heterogeneous morphology and variable molecular features. The optimal role of chemotherapy remains unclear. We conducted a systematic review according to PRISMA 2020 guidelines to evaluate chemotherapy in pediatric and young‐adult patients ...
Marco Salvi   +7 more
wiley   +1 more source

Contraction theory for nonlinear stability analysis and learning-based control: A tutorial overview [PDF]

open access: yes
Contraction theory is an analytical tool to study differential dynamics of a non-autonomous (i.e., time-varying) nonlinear system under a contraction metric defined with a uniformly positive definite matrix, the existence of which results in a necessary ...
Chung, Soon-Jo   +2 more
core   +1 more source

On the stability and control of discrete linear systems with clock synchronization errors [PDF]

open access: yes, 2011
This paper considers discrete linear time-invariant systems that can be decomposed into subsystems whose states are synchronized by a common clock whose signal reaches them with delays.
Marek Przedwojski   +7 more
core   +1 more source

Exponential sampled‐data fuzzy stabilization of nonlinear systems and its application to basic buck converters

open access: yesIET Control Theory & Applications, 2021
This study focuses on the exponential stability and stabilization of nonlinear systems via fuzzy sampled‐data control technique. The stability and stabilization conditions are obtained through constructing suitable Lyapunov functional which contains the ...
Nallappan Gunasekaran   +2 more
doaj   +1 more source

Effectiveness of Resistance Intradialytic Exercise Compared to Aerobic Intradialytic Exercise for Patients With Chronic Kidney Disease: A Randomized Controlled Clinical Trial

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Patients with chronic kidney disease undergoing hemodialysis commonly experience reduced physical function, fatigue, poor sleep quality, and impaired health‐related quality of life. Intradialytic exercise has been proposed as a non‐pharmacological strategy to improve these outcomes.
Klebson da Silva Almeida   +6 more
wiley   +1 more source

An improved control technique for designing of composite non‐linear feedback control in constrained time‐delay systems

open access: yesIET Control Theory & Applications, 2021
In this research, a novel delay‐dependent composite non‐linear feedback (CNF) control would be pointed for non‐linear time‐delay systems under actuator saturation.
Valiollah Ghaffari
doaj   +1 more source

Serum Myonectin Levels Are Positively Associated With Physical Function and Lower Frailty‐Related Limitation in Maintenance Hemodialysis Patients: A Cross‐Sectional Study

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Maintenance hemodialysis (MHD) patients frequently suffer from frailty, characterized by reduced physical function and poor prognosis. Myokines, such as myonectin, secreted by muscle, are emerging regulators of systemic health. This study investigated the relationship between serum myonectin, adipokines (adiponectin, omentin), and ...
Kenichi Kono   +7 more
wiley   +1 more source

Active vibration on offshore steel jacket platforms including delayed probabilistic actuator failures and resilient reliable sampled‐data control

open access: yesIET Control Theory & Applications, 2022
This paper examines the unified dissipative performance of Offshore Steel Jacket Platforms (OSJPs) which include actuator failures and probabilistic delays, through a resilient and reliable sampled‐data controller.
R. Manivannan, Yang Cao, Kil To Chong
doaj   +1 more source

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