Results 51 to 60 of about 26,901,207 (342)
FEBS Letters, EarlyView.Ascidian Ciona larvae initially show strong clockwise tail twisting, which is largely corrected during development. However, a small residual twist remains. This study shows that organized helical myofibrils in tail muscles mechanically stabilize this residual asymmetry, preventing complete restoration of bilateral symmetry and revealing how embryos ...
Yuki S. Kogure +3 more
wiley +1 more source
Finite-Time Extended State Observer-Based Fixed-Time Attitude Control for Hypersonic Vehicles
Mathematics, 2022 A finite-time extended, state-observer-based, fixed-time backstepping control algorithm was designed for hypersonic flight vehicles. To enhance the robustness of the controller, two novel finite-time extended state observers were introduced to compensate
Jiaqi Zhao +3 more
doaj +1 more source
Optimizing photoexcitation conditions for time‐resolved X‐ray solution scattering experiments
FEBS Open Bio, EarlyView.Time‐resolved X‐ray solution scattering (TR‐XSS) is a powerful technique to visualize how proteins change their structure in real time after light activation. Selecting the right laser photoexcitation conditions—fluence, excitation geometry, and sample refresh rate—is critical to maximize the experimental signal while avoiding unwanted side effects ...
Matteo Levantino
wiley +1 more source
Adaptive Finite-Time Synchronization Control for Teleoperation System With Varying Time Delays
IEEE Access, 2018 In practical application, the synchronization tracking of teleoperation system requires the fast speed and strong robustness. It is the ideal control effect that the synchronization errors between master and slave robots can converge to zero in finite ...
Haochen Zhang, Aiguo Song, Shaobo Shen
doaj +1 more source
Adaptive Finite-Time Control of Stochastic Genetic Regulatory Networks with Time-Varying Delays
Mathematics, 2022 This article discusses the finite-time stability problem for stochastic genetic regulatory networks (SGRNs) with time-varying delays. By designing suitable adaptive controllers and skillfully choosing appropriate Lyapunov and multi-Lyapunov functions ...
Lulu Wu, Feifei Liu, Haibo Gu, Pei Wang
doaj +1 more source
Observer-based finite-time control for discrete fuzzy jump nonlinear systems with time delays
, 2013 This paper investigates the problem of observer based finite-time Hinfinity control for a family of discrete jump nonlinear systems with time delays represented by Takagi- Sugeno (T-S) model.
Karimi, H. +7 more
core +1 more source
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Treatment of disorders of consciousness (DoC) remains a major clinical challenge, and noninvasive, targeted modulation of deep brain structures has emerged as a promising therapeutic strategy. We aimed to evaluate the feasibility/safety and preliminary effects of thalamic temporal interference stimulation (TIS) targeting centromedian‐
Gengyao Hu +7 more
wiley +1 more source
A Q‐Learning Algorithm to Solve the Two‐Player Zero‐Sum Game Problem for Nonlinear Systems
International 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
Finite Time Prescribed Performance Control for Uncertain Second-Order Nonlinear Systems
Journal of Mathematics, 2022 In this article, we discuss the finite time stability problem for second-order systems with an uncertain nonlinear function. A finite time performance function with the sinusoidal function is constructed, and the constrained problem of the original ...
Hui Lv, Wei Xiang, Jun Zhu
doaj +1 more source
Finite-Time Guaranteed Cost Control for Markovian Jump Systems with Time-Varying Delays
Mathematics, 2022 In this paper, the finite-time guaranteed cost control (FTGCC) problem is addressed for Itô Markovian jump systems with time-varying delays. The aim of this paper is to design a state feedback guaranteed cost controller, such that not only the resulting ...
Xikui Liu +3 more
doaj +1 more source