Results 81 to 90 of about 30,697 (220)

Oscillator neural network model with distributed native frequencies

, 1999
We study associative memory of an oscillator neural network with distributed native frequencies. The model is based on the use of the Hebb learning rule with random patterns ($\xi_i^{\mu}=\pm 1$), and the distribution function of native frequencies is ...
Arenas A, Cook J, Daido H, Damasio A R, Fukai T, Gray C M, Hopfield J J, Kuramoto Y, Kuramoto Y, Kühn R, Masahiko Yoshioka, Masatoshi Shiino, Michiko Yamana, Ritz R, Sakaguchi H, Shiino M, Shiino M, Vaadia E, van Hemmen J L, von der Malsburg C, von der Malsburg C, Wang D L   +21 more
core   +1 more source

Performance improvement of discrete‐time linear‐quadratic regulators applied to uncertain linear systems using the Tikhonov regularization method

Asian Journal of Control, EarlyView.
Abstract The linear‐quadratic regulator (LQR) problem of optimal control of an uncertain discrete‐time linear system (DTLS) is revisited in this paper from the perspective of Tikhonov regularization. We show that an optimally chosen regularization parameter reduces, compared to the classical LQR, the values of a scalar error function, as well as the ...
Fernando Pazos, Amit Bhaya
wiley   +1 more source

Robust Control for Uncertain Switched Systems with Interval Nondifferentiable Time-Varying Delays

Journal of Applied Mathematics, 2012
This paper addresses the conditions for robust stabilization of a class of uncertain switched systems with delay. The system to be considered is autonomous and the state delay is time-varying.
T. La-inchua, P. Niamsup
doaj   +1 more source

Output Regulation of Switched Stochastic Systems with Sampled-Data Control

Advances in Mathematical Physics, 2023
This paper studies the output regulation problem for a class of switched stochastic systems with sampled-data control. Solutions to the output regulation problem are given in two situations.
Xiaoxiao Dong, Hui Lan
doaj   +1 more source

Advanced control of non‐isothermal axial dispersion tubular reactors with recycle‐induced state delay

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract We develop a delay‐aware estimation and control framework for a non‐isothermal axial dispersion tubular reactor modelled as a coupled parabolic‐hyperbolic PDE system with recycle‐induced state delay. The infinite‐dimensional dynamics are preserved without spatial discretization by representing the delay as a transport PDE and adopting a late ...
Behrad Moadeli, Stevan Dubljevic
wiley   +1 more source

Polytopic Lyapunov Function-Based Hybrid Switching Control Strategy for High Voltage Direct Current Networks

IEEE Open Access Journal of Power and Energy
The increased use of High-Voltage Direct Current transmission networks requires appropriate control strategies for the converter stations, which are crucial to ensure uninterrupted energy supply.
Rohan Kamat Tarcar, Marjan Popov, Aleksandra Lekic   +2 more
doaj   +1 more source

Permanent-Magnet Synchronous Motor Drive System Using Backstepping Control with Three Adaptive Rules and Revised Recurring Sieved Pollaczek Polynomials Neural Network with Reformed Grey Wolf Optimization and Recouped Controller

Energies, 2020
Owing to some nonlinear characteristics in the permanent-magnet synchronous motor (SM), such as nonlinear friction, cogging torque, wind stray torque, external load torque, and unmodeled systems, fine control performances cannot be accomplished by ...
Chih-Hong Lin
doaj   +1 more source

A hidden Markov model and reinforcement learning‐based strategy for fault‐tolerant control

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study introduces a data‐driven control strategy integrating hidden Markov models (HMM) and reinforcement learning (RL) to achieve resilient, fault‐tolerant operation against persistent disturbances in nonlinear chemical processes. Called hidden Markov model and reinforcement learning (HMMRL), this strategy is evaluated in two case studies
Tamera Leitao, Debaprasad Dutta, Simant R. Upreti   +2 more
wiley   +1 more source

Synchronization of Delay Switched Fractional Cohen–Grossberg Neural Network Models

Mathematics
The Cohen–Grossberg neural network is studied in the case when the dynamics of the neurons are modeled by generalized Caputo fractional derivatives with respect to another function (GCFDF).
Donal O’Regan, Snezhana Hristova
doaj   +1 more source

Lyapunov Instability for a hard-disk fluid in equilibrium and nonequilibrium thermostated by deterministic scattering

, 2000
We compute the full Lyapunov spectra for a hard-disk fluid under temperature gradient and shear. The system is thermalized by deterministic and time-reversible scattering at the boundary. This thermostating mechanism allows for energy fluctuations around
Wagner, C.
core