Results 41 to 50 of about 10,658,834 (304)

Global dynamics of a fractional order model for the transmission of HIV epidemic with optimal control

open access: yesChaos, Solitons & Fractals, 2020
Highlights • Fractional order SEIR epidemic model with two infectious 'stages' is proposed.• Global dynamics of the model is performed.• Numerical simulations using Adam-Beshforth-Moulton method are conducted to support our results.• To present ...
Parvaiz Ahmad Naik, Jian Zu, K. Owolabi
semanticscholar   +1 more source

Fractional Order Compartment Models

open access: yesSIAM Journal on Applied Mathematics, 2017
This paper is an interesting application of fractional order systems. Compartment models are well known and well studied in the literature. To describe the time evolution of a system undergoing reactions between populations in different compartments, often compartment models are used. These are set of differential equations coupled together.
Christopher N. Angstmann   +5 more
openaire   +2 more sources

Survey Study of Factional Order Controllers

open access: yesJournal of Engineering, 2020
This is a survey study that presents recent researches concerning factional controllers. It presents several types of fractional order controllers, which are extensions to their integer order counterparts.
Omar Waleed Abdulwahhab   +1 more
doaj   +1 more source

On Moduli of Smoothness of Fractional Order [PDF]

open access: yesReal Analysis Exchange, 2005
In this paper we consider the properties of moduli of smoothness of fractional order. The main result of the paper describes the equivalence of the modulus of smoothness and a function from some class.
openaire   +3 more sources

Fractional Order Runge–Kutta Methods

open access: yesFractal and Fractional, 2023
This paper presents a new class of fractional order Runge–Kutta (FORK) methods for numerically approximating the solution of fractional differential equations (FDEs).
Farideh Ghoreishi   +2 more
doaj   +1 more source

Fractional Order Difference Equations

open access: yesInternational Journal of Differential Equations, 2012
A difference equation is a relation between the differences of a function at one or more general values of the independent variable. These equations usually describe the evolution of certain phenomena over the course of time. The present paper deals with
J. Jagan Mohan, G. V. S. R. Deekshitulu
doaj   +1 more source

Design of new fractional order PI–fractional order PD cascade controller through dragonfly search algorithm for advanced load frequency control of power systems

open access: yesSoft Computing - A Fusion of Foundations, Methodologies and Applications, 2020
Owing to integrating the dense range of distinct electric power sources, high volume of power generation units, abrupt and continuous changes in load demand, and rising utilization of power electronics, the electric power system (EPS) is striving for ...
E. Çelik
semanticscholar   +1 more source

Fractional-Order LC Three-Phase Inverter Using Fractional-Order Virtual Synchronous Generator Control and Adaptive Rotational Inertia Optimization

open access: yesMachines
The application of fractional calculus in power electronics modeling provides an innovative method for improving inverter performance. This paper presents a three-phase inverter topology with fractional-order LC filter characteristics, analyzes its ...
Junhua Xu   +5 more
doaj   +1 more source

Fractional Order Dynamic Positioning Controller [PDF]

open access: yesTransNav, 2015
Improving the performance of Dynamic Positioning System in such applications as station keeping, position mooring and slow speed references tracking requires improving the position and heading control precision.
Anna Witkowska
doaj   +1 more source

Adaptive Fuzzy Control for Fractional-Order Interconnected Systems With Unknown Control Directions [PDF]

open access: yesIEEE transactions on fuzzy systems, 2020
This article concentrates on the study of the decentralized fuzzy control method for a class of fractional-order interconnected systems with unknown control directions.
Bingyun Liang   +3 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy