Results 21 to 30 of about 9,825,333 (241)

A comprehensive theoretical model for on-chip microring-based photonic fractional differentiators [PDF]

open access: yes, 2015
Microring-based photonic fractional differentiators play an important role in the on-chip all-optical signal processing. Unfortunately, the previous works do not consider the time-reversal and the time delay characteristics of the microring-based ...
Yuan, Jinhui   +25 more
core   +1 more source

Stabilization of a fractional-order chain of integrators: a contraction-based approach [PDF]

open access: yes, 2013
In this paper, stabilization of a chain of fractional-order integrators is attempted. The stability is proved using contraction analysis.
SPURGEON, S   +8 more
core   +1 more source

Unitary fractional-order derivative operators for quantum computation

open access: yes, 2021
Along with recent progresses in quantum computation technologies, researchers have addressed practical computational supremacies of quantum computers. The research works in the quantum computation domain mainly focus on progressive quantum algorithms and
Alagoz B.B., Alagoz S.
core   +1 more source

Fractional variational problems depending on indefinite integrals [PDF]

open access: yes, 2012
We obtain necessary optimality conditions for variational problems with a Lagrangian depending on a Caputo fractional derivative, a fractional and an indefinite integral.
Pooseh, Shakoor   +8 more
core   +1 more source

Orthogonal Features-based EEG Signal Denoising using Fractionally Compressed AutoEncoder [PDF]

open access: yesSignal Processing, 2021
A fractional-based compressed auto-encoder architecture has been introduced to solve the problem of denoising electroencephalogram (EEG) signals. The architecture makes use of fractional calculus to calculate the gradients during the backpropagation ...
Subham Nagar, Ahlad Kumar, M. Swamy
semanticscholar   +1 more source

Fractional characteristic functions, and a fractional calculus approach for moments of random variables [PDF]

open access: yes, 2022
In this paper we introduce a fractional variant of the characteristic function of a random variable. It exists on the whole real line, and is uniformly continuous.
Gerhold, Stefan; orcid:   +2 more
core   +1 more source

Adaptive Control of Milling Forces under Fractional Order Holds [PDF]

open access: yes, 2007
This paper introduces a novel discrete-time modelreference based control of the tool-work-piece interaction force in a milling process. The novelty of the scheme relies on the use of a fractional order hold (FROH) instead of a traditional zero order hold
De la Sen Parte, Manuel   +1 more
core   +3 more sources

Error estimation of a proper orthogonal decomposition reduced model of a permanent magnet synchronous machine [PDF]

open access: yes, 2014
Model order reduction methods, like the proper orthogonal decomposition (POD), enable to reduce dramatically the size of a finite element (FE) model.
MAC, Hung   +2 more
core   +1 more source

Analysis of discrete time schemes for milling forces control under fractional order holds [PDF]

open access: yes, 2013
In this paper, discrete time model reference control schemes for practical milling using different discretization of the continuous-time plant are presented. First, a basic controller scheme is addressed where a fractional order hold with pre-fixed value
De la Sen, Manuel   +11 more
core   +1 more source

Tunable fractional-order photonic differentiator based on the inverse Raman scattering in a silicon microring resonator [PDF]

open access: yes, 2015
A novel photonic fractional-order temporal differentiator is proposed based on the inverse Raman scattering (IRS) in the side-coupled silicon microring resonator.
Wu, Q   +19 more
core   +1 more source

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