Results 31 to 40 of about 10,664 (261)

Problem for differential-algebraic equations with a significant loads

Қарағанды университетінің хабаршысы. Математика сериясы
In this article, the problem for a differential-algebraic equation with a significant loads is studied. Unlike previously studied problems for differential equations with a significant loads, in the considered equation, there is a matrix in the left ...
A.T. Assanova, Zh.M. Kadirbayeva, R.A. Medetbekova, S.T. Mynbayeva   +3 more
doaj   +1 more source

Modeling and PDC fuzzy control of planar parallel robot

International Journal of Advanced Robotic Systems, 2017
Many works in the literature have studied the kinematical and dynamical issues of parallel robots. But it is still difficult to extend the vast control strategies to parallel mechanisms due to the complexity of the model-based control. This complexity is
Benyamine Allouche, Antoine Dequidt, Laurent Vermeiren, Michel Dambrine   +3 more
doaj   +1 more source

Linear matrix differential-algebraic boundary-value problem in the case of parametric resonance

Науковий вісник Ужгородського університету. Серія: Математика і інформатика, 2017
We construct necessary and sufficient conditions for the existence of solution of linear boundary value problem for a parametric excitation system of differential-algebraic equations.
С. М. Чуйко, Д. В. Сисоєв
doaj   +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, Anthony Siming Chen, Guido Herrmann   +2 more
wiley   +1 more source

Algebraic Analysis of Key Recovery on ZORRO Iterative Differential Characteristics [PDF]

Jisuanji gongcheng, 2017
This paper analyzes ZORRO with algebraic method in detail according to its iterative characteristic of the round function.The encryption iterates 5 times based on 4-round differential characteristics to form 20-round differential characteristics,and then
LI Mengzhu,ZHANG Wenying,CHEN Wanpu
doaj   +1 more source

A Game—Theoretic Model for a Stochastic Linear Quadratic Tracking Problem

Axioms, 2023
In this paper, we solve a stochastic linear quadratic tracking problem. The controlled dynamical system is modeled by a system of linear Itô differential equations subject to jump Markov perturbations.
Vasile Drăgan, Ivan Ganchev Ivanov, Ioan-Lucian Popa   +2 more
doaj   +1 more source

Adaptive Observer for Coupled Wave PDE and Infinite ODE With Sampled Data and Unknown Input: Application to Brain Hemodynamics Estimation

International Journal of Adaptive Control and Signal Processing, EarlyView.
This article proposes a convergent adaptive observer for a damped wave PDE and an infinite‐dimensional ODE coupled in cascade using sampled‐in‐space ODE state measurements. The proposed observer estimates the distributed states of the PDE and ODE along with unknown PDE parameters and spatial input.
Zehor Belkhatir, Sarah Mechhoud, Taous‐Meriem Laleg‐Kirati   +2 more
wiley   +1 more source

Earthquake dynamic response of large flexible multibody systems [PDF]

Mechanical Sciences, 2013
In the paper dynamics of large flexible structures imposed on earthquakes and high amplitude vibrations is regarded. Precise dynamic equations of flexible systems are the basis for reliable motion simulation and analysis of loading of the design scheme ...
E. V. Zahariev
doaj   +1 more source

Optimal Greedy Control in Reinforcement Learning

Sensors, 2022
We consider the problem of dimensionality reduction of state space in the variational approach to the optimal control problem, in particular, in the reinforcement learning method.
Alexander Gorobtsov, Oleg Sychev, Yulia Orlova, Evgeniy Smirnov, Olga Grigoreva, Alexander Bochkin, Marina Andreeva   +6 more
doaj   +1 more source

A Thermodynamic 3D Model for the Simulation of Diffusion‐Controlled Alloying Processes in Heterogeneous Material Structures

Advanced Engineering Materials, EarlyView.
A numerical model resulting from irreversible thermodynamics for describing transport processes is introduced, focusing on thermodynamic activity gradients as the actual driving force for diffusion. Implemented in CUDA C++ and using CalPhaD methods for determining the necessary activity data, the model accurately simulates interdiffusion in aluminum ...
Ulrich Holländer, Leonhard Holländer, André Langohr, Hans Jürgen Maier   +3 more
wiley   +1 more source