Results 21 to 30 of about 7,072 (261)

An Integer-Order Memristive System with Two- to Four-Scroll Chaotic Attractors and Its Fractional-Order Version with a Coexisting Chaotic Attractor

open access: yesComplexity, 2018
First, based on a linear passive capacitor C, a linear passive inductor L, an active-charge-controlled memristor, and a fourth-degree polynomial function determined by charge, an integer-order memristive system is suggested.
Ping Zhou, Meihua Ke
doaj   +1 more source

Novel expressions for time domain responses of fractance device

open access: yesCogent Engineering, 2017
In this research, many novel expressions for time domain responses of fractance device to various often cited inputs have been proposed. Unlike the previous ones, our expressions have been derived based on the Caputo fractional derivative by also ...
Rawid Banchuin
doaj   +1 more source

Universal fractional-order design of linear phase lead compensation multirate repetitive control for PWM inverters [PDF]

open access: yes, 2017
Repetitive control (RC) with linear phase lead compensation provides a simple but very effective control solution for any periodic signal with a known period.
Liu, Zhichao, Zhang, Bin, Zhou, Keliang
core   +1 more source

Stored Electromagnetic Energy and Antenna Q [PDF]

open access: yes, 2012
Decomposition of the electromagnetic energy into its stored and radiated parts is instrumental in the evaluation of antenna Q and the corresponding fundamental limitations on antennas.
Gustafsson, Mats, Jonsson, B. L. G.
core   +1 more source

Fractional Controller Design of a DC-DC Converter for PEMFC

open access: yesIEEE Access, 2020
Proton Exchange Membrane Fuel Cell (PEMFC) is difficult for application because of its high current and wide voltage output. A fractional order PID controller is introduced to a Four-Switch Buck-Boost DC/DC converter to stabilize the power output in this
Zhidong Qi   +3 more
doaj   +1 more source

On two generalisations of the final value theorem : scientific relevance, first applications, and physical foundations [PDF]

open access: yes, 2011
The present work considers two published generalisations of the Laplace-transform final value theorem (FVT) and some recently appeared applications of one of these generalisations to the fields of physical stochastic processes and Internet queueing ...
Gluskin, Emanuel, Walraevens, Joris
core   +1 more source

Concepts and methods in optimization of integrated LC VCOs [PDF]

open access: yes, 2001
Underlying physical mechanisms controlling the noise properties of oscillators are studied. This treatment shows the importance of inductance selection for oscillator noise optimization. A design strategy centered around an inductance selection scheme is
Hajimiri, Ali, Ham, Donhee
core   +1 more source

Comparative Study of Discrete Component Realizations of Fractional-Order Capacitor and Inductor Active Emulators [PDF]

open access: yesJournal of Circuits, Systems and Computers, 2018
Due to the absence of commercially available fractional-order capacitors and inductors, their implementation can be performed using fractional-order differentiators and integrators, respectively, combined with a voltage-to-current conversion stage. The transfer function of fractional-order differentiators and integrators can be approximated through the
Georgia Tsirimokou   +4 more
openaire   +2 more sources

Basin of Attraction Analysis of New Memristor-Based Fractional-Order Chaotic System

open access: yesComplexity, 2021
Memristor is the fourth basic electronic element discovered in addition to resistor, capacitor, and inductor. It is a nonlinear gadget with memory features which can be used for realizing chaotic, memory, neural network, and other similar circuits and ...
Long Ding, Li Cui, Fei Yu, Jie Jin
doaj   +1 more source

Analysis and Modeling of Fractional-Order Buck Converter Based on Riemann-Liouville Derivative

open access: yesIEEE Access, 2019
In previous studies, researchers used the fractional definition of Caputo to study fractional-order power converter. However, it is found that the model based on Caputo fractional definition is inconsistent with the actual situation.
Zhihao Wei, Bo Zhang, Yanwei Jiang
doaj   +1 more source

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