You are currently viewing a new version of our website. To view the old version click .

Fractal and Fractional, Volume 7, Issue 1

January 2023 - 98 articles

Cover Story: Controlling soft robots is a significant challenge due to the nonlinear elastic nature of the soft materials that conform their structure. This paper studies the identification and control problems of a novel two-degrees-of-freedom, tendon-actuated, soft robotic arm. A decoupled identification approach is presented; later, a fractional order control strategy is proposed and tested experimentally, in comparison with PI solutions. The simulation and experimental results show the goodness of the modeling and control approaches discussed. View this paper
  • Issues are regarded as officially published after their release is announced to the table of contents alert mailing list .
  • You may sign up for email alerts to receive table of contents of newly released issues.
  • PDF is the official format for papers published in both, html and pdf forms. To view the papers in pdf format, click on the "PDF Full-text" link, and use the free Adobe Reader to open them.

Articles (98)

  • Article
  • Open Access
10 Citations
1,758 Views
26 Pages

This paper gives some results on almost automorphic strong solutions to time-fractional partial differential equations by employing a mix o thef Galerkin method, Fourier series, and Picard iteration. As an application, the existence, uniqueness, and...

  • Article
  • Open Access
6 Citations
1,978 Views
22 Pages

In this paper, existence/uniqueness of solutions and approximate controllability concept for Caputo type stochastic fractional integro-differential equations (SFIDE) in a Hilbert space with a noninstantaneous impulsive effect are studied. In addition...

  • Article
  • Open Access
21 Citations
4,077 Views
18 Pages

A New Look at the Capacitor Theory

  • Manuel Duarte Ortigueira,
  • Valeriy Martynyuk,
  • Volodymyr Kosenkov and
  • Arnaldo Guimarães Batista

The mathematical description of the charging process of time-varying capacitors is reviewed and a new formulation is proposed. For it, suitable fractional derivatives are described. The case of fractional capacitors that follow the Curie–von Sc...

  • Article
  • Open Access
5 Citations
3,301 Views
13 Pages

This research analyzes asymmetric volatility and multifractality in four representative cryptocurrencies using index-based asymmetric multifractal detrended fluctuation analysis. We suggest investigating an idiosyncratic risk premium, which can be ob...

  • Article
  • Open Access
7 Citations
2,613 Views
18 Pages

This study aims to validate the hypothesis that the pharmacokinetics of certain drug regimes are better captured using fractional order differential equations rather than ordinary differential equations. To support this research, two numerical method...

  • Article
  • Open Access
2 Citations
2,515 Views
19 Pages

In this paper, we develop a new class of conservative continuous-stage stochastic Runge–Kutta methods for solving stochastic differential equations with a conserved quantity. The order conditions of the continuous-stage stochastic Runge–K...

  • Article
  • Open Access
72 Citations
3,758 Views
18 Pages

In order to enrich the dynamic behaviors of discrete neuron models and more effectively mimic biological neural networks, this paper proposes a bistable locally active discrete memristor (LADM) model to mimic synapses. We explored the dynamic behavio...

  • Article
  • Open Access
1 Citations
2,172 Views
13 Pages

New Fractional Integral Inequalities Pertaining to Center-Radius (cr)-Ordered Convex Functions

  • Soubhagya Kumar Sahoo,
  • Hleil Alrweili,
  • Savin Treanţă and
  • Zareen A. Khan

In this work, we use the idea of interval-valued convex functions of Center-Radius (cr)-order to give fractional versions of Hermite–Hadamard inequality. The results are supported by some numerical estimations and graphical representations cons...

  • Article
  • Open Access
2,044 Views
12 Pages

In this paper, a delayed reaction-diffusion neural network model of fractional order and with several constant delays is considered. Generalized proportional Caputo fractional derivatives with respect to the time variable are applied, and this type o...

  • Article
  • Open Access
3 Citations
2,267 Views
14 Pages

This article investigates the propagation of a deadly human disease, namely leprosy. At the outset, the mathematical model is transformed into a fractional-order model by introducing the Caputo differential operator of arbitrary order. A result is es...

of 10

Get Alerted

Add your email address to receive forthcoming issues of this journal.

XFacebookLinkedIn
Fractal Fract. - ISSN 2504-3110