Results 61 to 70 of about 22,616,288 (249)

Prescribed‑Time Attitude Control of Combined Spacecraft Based on Disturbance Observer

Transactions of Nanjing University of Aeronautics and Astronautics
In on-orbit servicing missions， the servicing spacecraft typically docks with the target spacecraft to form a combined spacecraft to carry out subsequent tasks， and the cooperative attitude control between the two spacecraft is one of the challenging ...
ZHANG Hao, MA Songjing, HUA Bing, LU Zhenkun, WU Yunhua   +4 more
doaj   +1 more source

Finite-Time Prescribed Performance Tracking Control for Unmanned Helicopter System Using Neural Network

In this paper, a composite finite-time prescribed performance tracking control scheme is presented for an unmanned helicopter (UH) system subject to performance constraints, model uncertainties and external perturbations. A new finite-time neural network
Yang Li, Ting Yang
core   +1 more source

Vascular Disease, Non‐Steroidal Anti‐Inflammatory Drugs and Risk of Parkinson's Disease

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives A history of vascular disease has been shown to be associated with an increased risk of Parkinson's disease, but this may be due to reverse causation. In addition, non‐steroidal anti‐inflammatory drugs are thought to reduce Parkinson's disease risk, but evidence is inconsistent and confounding by prior vascular disease is possible ...
Clare Wotton, Carol Hermon, Sarah Floud, Gillian Reeves, Isobel Barnes   +4 more
wiley   +1 more source

Observer-Based Adaptive Prescribed- Time H_∞ Coordinated Control for Multiple Robot Manipulators With Prescribed Performance and Input Quantization

IEEE Access
In this paper, a prescribed-time adaptive $H_{\infty }$ cooperative strategy with novel prescribed performance and input quantization based on a leader state observer is proposed for uncertain multiple robot manipulators.
Weichen Li, Haitao Liu, Xuehong Tian
doaj   +1 more source

Adaptive Fault-Tolerant Control of Nonlinear Time-Delay Systems With Prescribed Performance

IEEE Access, 2020
An adaptive fault-tolerant control method considering actuator fault is proposed for a class of strict-feedback nonlinear time-delay systems. The prescribed performance is introduced by error transformation, which guarantees the transient performance of ...
Zhongjun Yang, Jingxuan Shi, Xuejun Zong, Guogang Wang   +3 more
doaj   +1 more source

Event-Driven Prescribed-Time Tracking Control for Multiple UAVs with Flight State Constraints

Consensus tracking control for multiple UAVs demonstrates critical theoretical value and application potential, improving system robustness and addressing challenges in complex operational environments.
Xueyan Han, Yuyuan Shi, Peng Yu, Maolong Lv, Ning Wang   +4 more
core   +1 more source

Safety and Efficacy of GLP‐1 Receptor Agonists in Adults With Epilepsy, Obesity, and Type 2 Diabetes

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Managing obesity in patients with epilepsy is complicated by the weight‐gaining properties of essential antiseizure medications (ASMs) such as valproate and pregabalin. We evaluated the safety and efficacy of initiating glucagon‐like peptide‐1 receptor agonists (GLP‐1 RAs) in this population.
Hyoshin Son, Inyoung Hwang, Sang Won Lee, Yun Kim   +3 more
wiley   +1 more source

Impact of Age on the Diagnostic Yield of Routine EEG in People With Childhood or Juvenile Absence Epilepsy: A Cross‐Sectional Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background We aimed to identify the proportion of individuals with a confirmed diagnosis of childhood absence epilepsy (CAE) or juvenile absence epilepsy (JAE) who show a negative routine EEG (rEEG), and to determine the main factors associated with this finding.
Francesco Fortunato, Alessia Giugno, Miriam Sturniolo, Enrico Fratto, Pio Zoleo, Francesca Felicia Operto, Ilaria Sammarra, Antonio Gambardella   +7 more
wiley   +1 more source

Fixed‐time prescribed performance control method for nonlinear systems with unknown time‐varying parameters

IET Control Theory & Applications
In this study, it is considered that the question of adaptive tracking control of nonlinear systems containing unknown time‐varying parameters. To optimize the control effect, a fixed‐time control strategy is adopted, in which the upper bound of the ...
Wei Sun, Junhao Yuan, Xiaoqin Yang
doaj   +1 more source

Practical Fixed-Time Tracking Control for Strict-Feedback Nonlinear Systems with Flexible Prescribed Performance

This paper addresses the issue of practical fixed-time tracking control for a class of strict-feedback nonlinear systems subject to external disturbances, while ensuring flexible prescribed performance.
Jianing Hu, Yongzhi Wang, Xing Wang, Ben Niu, Yulong Ji   +4 more
core   +1 more source