Results 21 to 30 of about 22,214 (260)

Efficient numerical algorithm with the second-order time accuracy for a two-dimensional nonlinear fourth-order fractional wave equation

open access: yesResults in Applied Mathematics, 2022
In this article, we construct an efficient numerical algorithm with the second-order time accuracy for a two-dimensional nonlinear fourth-order fractional wave equation.
Jiarui Wang, Yang Liu, Cao Wen, Hong Li
doaj   +1 more source

Synthesis of elements with fractional-order impedance based on homogenous distributed resistive-capacitive structures and genetic algorithm

open access: yesJournal of Advanced Research, 2020
The work proposes a synthesis method of capacitive fractional-order impedance element which is composed of homogenous distributed resistive-capacitive (RC) structures (lines).
Pyotr Arkhipovich Ushakov   +5 more
doaj   +1 more source

Human Hypertension Blood Flow Model Using Fractional Calculus

open access: yesFrontiers in Physiology, 2022
The blood flow dynamics in human arteries with hypertension disease is modeled using fractional calculus. The mathematical model is constructed using five-element lumped parameter arterial Windkessel representation.
Mohamed A. Bahloul   +4 more
doaj   +1 more source

Adjustable Multiphase Sinusoidal Oscillator with Fractional–Order Elements [PDF]

open access: yes2019 11th International Congress on Ultra Modern Telecommunications and Control Systems and Workshops (ICUMT), 2019
This paper presents a fractional–order multiphase oscillator with adjustable FO (Frequency of Oscillation). The oscillator utilizes the following components: CCTA (Current Conveyor Transconductance Amplifier), OTA (Operational Transconductance Amplifier), auxiliary OTRA (Operational Transresistance Amplifier), two FOC (Fractional–Order Capacitors) and ...
Jan Dvorak   +4 more
openaire   +2 more sources

The Microcontroller Implementation of the Basic Fractional-Order Element [PDF]

open access: yesPomiary Automatyka Robotyka, 2020
The paper presents the implementation of the basic fractional order element sγ on the STM32 microcontroller platform. The implementation employs the typical CFE and FOBD approximations, the accuracy of approximation as well as duration of calculations are experimentally tested.
Krzysztof Oprzędkiewicz   +2 more
openaire   +1 more source

Extended Darlington Synthesis of Fractional Order Immittance Function With Two Element Orders

open access: yesIEEE Access, 2019
Actual circuits have fractional order characteristics essentially. With the widespread application of fractional order circuits and the great strides in the manufacturing of fractional order elements in recent years, passive synthesis of fractional order
Guishu Liang, Zheng Qi
doaj   +1 more source

Vibration Equation of Fractional Order Describing Viscoelasticity and Viscous Inertia

open access: yesOpen Physics, 2019
The steady state response of a fractional order vibration system subject to harmonic excitation was studied by using the fractional derivative operator −∞Dtβ,${}_{-\infty} D_t^\beta,$where the order β is a real number satisfying 0 ≤ β ≤ 2.
Duan Jun-Sheng, Xu Yun-Yun
doaj   +1 more source

Fracmemristor: Fractional-Order Memristor

open access: yesIEEE Access, 2016
This paper mainly discusses an interesting conceptual framework: the fractional-order memristor (fracmemristor). It is a challenging theoretical problem to determine what the fracmemristor interpolating characteristics between the memristor and the ...
Yi-Fei Pu, Xiao Yuan
doaj   +1 more source

An expanded mixed finite element simulation for two-sided time-dependent fractional diffusion problem

open access: yesAdvances in Difference Equations, 2018
In this paper, we consider a time-dependent diffusion problem with two-sided Riemann-Liouville fractional derivatives. By introducing a fractional-order flux as auxiliary variable, we establish the saddle-point variational formulation, based on which we ...
Qiong Yuan, Huanzhen Chen
doaj   +1 more source

Fracmemristor chaotic oscillator with multistable and antimonotonicity properties

open access: yesJournal of Advanced Research, 2020
Memristor is a non-linear circuit element in which voltage-current relationship is determined by the previous values of the voltage and current, generally the history of the circuit.
Haikong Lu   +5 more
doaj   +1 more source

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