Results 21 to 30 of about 176,088 (217)

Novel Time Method of Identification of Fractional Model Parameters of Supercapacitor

open access: yesEnergies, 2020
Accurate dynamic models of supercapacitors (SCs) are a basis for the design, control and exploitation of the hybrid energy storage systems for electric vehicles.
Miroslaw Lewandowski, Marek Orzylowski
doaj   +1 more source

Аппроксимация законов распределения времён ожидания форшоков на основе дробной модели деформационной активности

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2022
В статье рассматриваются два алгоритма построения последовательностей форшоков, связанных с главным событием заданной энергии, на основе ранее разработанной авторами статистической модели деформационного процесса.
Шереметьева, О.В.   +1 more
doaj   +1 more source

Fractal Analytical Solutions for Nonlinear Two-Phase Flow in Discontinuous Shale Gas Reservoir

open access: yesMathematics, 2022
The paths of a two-phase flow are usually non-linear and discontinuous in the production of shale gas development. To research the influence mechanism between shale gas and water, several integer two-phase flow models have been studied but few analytical
Xiaoji Shang   +5 more
doaj   +1 more source

Rate-Dependent Modeling of Piezoelectric Actuators for Nano Manipulation Based on Fractional Hammerstein Model

open access: yesMicromachines, 2021
Piezoelectric actuators (PEAs), as a smart material with excellent characteristics, are increasingly used in high-precision and high-speed nano-positioning systems.
Liu Yang   +3 more
doaj   +1 more source

Changes in Derivative Orders for Fractional Models of Supercapacitors as a Function of Operating Temperature

open access: yesIEEE Access, 2019
This paper presents the results of research related to modeling of the effect of supercapacitor operating temperature on a fractional derivative order.
Ryszard Kopka
doaj   +1 more source

A Nonlocal Fractional Peridynamic Diffusion Model

open access: yesFractal and Fractional, 2021
This paper proposes a nonlocal fractional peridynamic (FPD) model to characterize the nonlocality of physical processes or systems, based on analysis with the fractional derivative model (FDM) and the peridynamic (PD) model.
Yuanyuan Wang   +4 more
doaj   +1 more source

Expanding the Repertoire of Dielectric Fractional Models: A Comprehensive Development and Functional Applications to Predict Metabolic Alterations in Experimentally-Inaccessible Cells or Tissues

open access: yesFluids, 2018
In this paper, we present the theoretical approach developed by us in the network of dielectric fractional theories. In particular, we mention the general aspects of the non-equilibrium thermodynamics, and after an introduction to the interaction between
Francesco Farsaci   +3 more
doaj   +1 more source

Analysis of the Fractional HIV Model under Proportional Hadamard-Caputo Operators

open access: yesFractal and Fractional, 2023
Modeling human immunodeficiency virus (HIV) via fractional operators has several benefits over the classical integer-order HIV model. The reason is that the fractional HIV model relies not only on the recent status but also on the former conduct of the ...
Areej A. Almoneef   +2 more
doaj   +1 more source

Fractional model for the characterization of the linear viscoelastic behavior of thermoplastic polymer

open access: yesMechanics & Industry
This study proposes fractional models to describe the linear viscoelastic behavior of polymethyl methacrylate over a wide range of frequencies and temperatures.
Dang Rongqi   +3 more
doaj   +1 more source

Lyapunov stability and wave analysis of Covid-19 omicron variant of real data with fractional operator

open access: yesAlexandria Engineering Journal, 2022
The fractional derivative is an advanced category of mathematics for real-life problems. This work focus on the investigation of 2nd wave of the Corona virus in India.
Changjin Xu   +6 more
doaj   +1 more source

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