Results 41 to 50 of about 473,143 (311)

Adaptive synchronization of quaternion-valued neural networks with reaction–diffusion and fractional order

Nonlinear Analysis
This paper is dedicated to the study of adaptive finite-time synchronization (FTS) for generalized delayed fractional-order reaction–diffusion quaternion-valued neural networks (GDFORDQVNN).
Weiwei Zhang, Hongyong Zhao, Chunlin Sha
doaj   +1 more source

Finite time trajectory tracking of underactuated ship based on adaptive neural network

Zhongguo Jianchuan Yanjiu, 2022
ObjectiveAiming at the problems of dynamic uncertainty and unknown disturbance in the trajectory tracking control of underactuated surface ships, an adaptive neural network finite time trajectory tracking control scheme is designed.
Qiang ZHANG, Yaping ZHU, Xiangfei MENG, Shuhao ZHANG, Yancai HU   +4 more
doaj   +1 more source

A New Varying-Factor Finite-Time Recurrent Neural Network to Solve the Time-Varying Sylvester Equation Online

Mathematics
This paper presents a varying-parameter finite-time recurrent neural network, called a varying-factor finite-time recurrent neural network (VFFTRNN), which is able to solve the solution of the time-varying Sylvester equation online.
Haoming Tan, Junyun Wu, Hongjie Guan, Zhijun Zhang, Ling Tao, Qingmin Zhao, Chunquan Li   +6 more
doaj   +1 more source

Ruin probability in finite time [PDF]

, 2011
In examining the nature of the risk associated with a portfolio of business, it is often of interest to assess how the portfolio may be expected to perform over an extended period of time. One approach involves the use of ruin theory (Panjer and Willmot, 1992).
Krzysztof Burnecki, Marek Teuerle
openaire   +1 more source

On Finite-Time Blow-Up Problem for Nonlinear Fractional Reaction Diffusion Equation: Analytical Results and Numerical Simulations

Fractal and Fractional, 2023
The study of the blow-up phenomenon for fractional reaction–diffusion problems is generally deemed of great importance in dealing with several situations that impact our daily lives, and it is applied in many areas such as finance and economics.
Tareq Hamadneh, Zainouba Chebana, Ibraheem Abu Falahah, Yazan Alaya AL-Khassawneh, Abdallah Al-Husban, Taki-Eddine Oussaeif, Adel Ouannas, Abderrahmane Abbes   +7 more
doaj   +1 more source

Ordered-Bipartite Consensus of Multi-Agent Systems under Finite Time Control

Applied Sciences, 2022
Since group consensus (GC) control accounts for one-half of the multi-robot coordination domain, as does complete consensus control, this paper will formulate a certain kind of GC and group bipartite consensus (GBC) in finite time for multi-agent systems
Tiehui Zhang, Xinru Ma, Hengyu Li, Zhaoyan Wang, Shaorong Xie, Jun Luo   +5 more
doaj   +1 more source

A note on finite-time and fixed-time stability [PDF]

Neural Networks, 2016
In this letter, by regarding finite-time stability as an inverse problem, we reveal the essence of finite-time stability and fixed-time stability. Some necessary and sufficient conditions are given. As application, we give a new approach for finite-time and fixed-time synchronization and consensus.
Wenlian Lu, Xiwei Liu, Tianping Chen
openaire   +3 more sources

Study on Super-Twisting synchronization control of chaotic system based on U model

Journal of Hebei University of Science and Technology, 2016
A U model based Super-Twisting synchronization control method for chaotic systems is proposed. The chaos control of chaotic systems is prescribed, then, based on the current research status of chaotic systems and some useful research results in nonlinear
Jianhua ZHANG, Yang LI, Xueli WU, Min ZHAO, Shenyang ZHUANG   +4 more
doaj   +1 more source

Normal‐Appearing White Matter Injury Mediates Chronic Deep Venous Hypoxia and Disease Progression in Multiple Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To explore how cerebral hypoxia and Normal‐Appearing White Matter (NAWM) integrity affect MS lesion burden and clinical course. Methods Seventy‐nine MS patients, including 13 clinically isolated syndrome (CIS) patients and 66 relapsing–remitting multiple sclerosis (RRMS) patients, and 44 healthy controls (HCs) were recruited from ...
Xinli Wang, Huiying Wang, Zhizheng Zhuo, Ai Guo, Ke Lv, Decai Tian, Chao Chai, Yunyun Duan, Shuang Xia   +8 more
wiley   +1 more source

A Finite-Time Disturbance Observer-Based Control for Constrained Second-Order Dynamical Systems and Its Application to the Attitude Tracking of a UAV

Mathematics
As second-order dynamical systems are omnipresent, solving the control problem for such a class of systems has attracted worldwide attention. Among many techniques, the backstepping control method is well-known for its straightforward design and efficacy,
Nguyen Xuan Mung, Nguyen Huu Tiep, Loan Thi Kim Au, Nguyen Ngoc Anh, Xuan Nguyen, Nguyen Phi   +5 more
doaj   +1 more source