Results 71 to 80 of about 17,914 (237)

Infrared spectroscopy of diatomic molecules - a fractional calculus approach

open access: yes, 2012
The eigenvalue spectrum of the fractional quantum harmonic oscillator is calculated numerically solving the fractional Schr\"odinger equation based on the Riemann and Caputo definition of a fractional derivative.
Dirac P. A. M.   +20 more
core   +1 more source

Development of a consolidated bioprocess for the production of citric acid using Aspergillus niger as biocatalyst

open access: yesBiofuels, Bioproducts and Biorefining, EarlyView.
Abstract The industrial production of citric acid, an ingredient in beverages, pharmaceuticals, and cosmetics, is based on microbial fermentation of glucose or sucrose. Given the elevated cost of these sugars, lignocellulosic biomass is emerging as a cost‐effective and environmentally friendly feedstock for sustainable bioprocesses.
Ludovica Varriale   +4 more
wiley   +1 more source

Multiple Fractional Solutions for Magnetic Bio-Nanofluid Using Oldroyd-B Model in a Porous Medium with Ramped Wall Heating and Variable Velocity

open access: yesApplied Sciences, 2020
Three different fractional models of Oldroyd-B fluid are considered in this work. Blood is taken as a special example of Oldroyd-B fluid (base fluid) with the suspension of gold nanoparticles, making the solution a biomagnetic non-Newtonian nanofluid ...
Muhammad Saqib   +5 more
doaj   +1 more source

Impedance Modeling and Analysis of PV Inverters Considering Fractional‐Order Characteristics of Elements

open access: yesInternational Journal of Circuit Theory and Applications, EarlyView.
This manuscript finds that the previous impedance modeling and stability analysis methods for photovoltaic inverters have not yet considered the fractional‐order characteristics of the elements; in order to make up for the blank in this research field, this paper carried out relevant work.
Guanlei Li   +4 more
wiley   +1 more source

Nudging local: Do information treatments work?

open access: yesJournal of the Agricultural and Applied Economics Association, EarlyView.
Abstract This study examines how information nudges shape consumer preferences for locally grown foods. Using an online discrete choice experiment with blueberries, we assess the effectiveness of tailored information emphasizing local economy support, quality, and environmental benefits in increasing consumer valuation of state‐branded products ...
Younghyeon Jeon   +5 more
wiley   +1 more source

Numerical Methods for Solving Fractional Differential Equations [PDF]

open access: yes, 2018
Department of Mathematical SciencesIn this thesis, several efficient numerical methods are proposed to solve initial value problems and boundary value problems of fractional di???erential equations.
Kim, Keon Ho
core  

Boundary Conditions for Fractional Diffusion

open access: yes, 2017
This paper derives physically meaningful boundary conditions for fractional diffusion equations, using a mass balance approach. Numerical solutions are presented, and theoretical properties are reviewed, including well-posedness and steady state ...
Baeumer, Boris   +3 more
core   +1 more source

Solutions of a coupled system of hybrid boundary value problems with Riesz-Caputo derivative

open access: yesDemonstratio Mathematica
Riesz-Caputo fractional derivative refers to a fractional derivative that reflects both the past and the future memory effects. This study gives sufficient conditions for the existence of solutions for a coupled system of fractional order hybrid ...
Ji Dehong, Fu Shiqiu, Yang Yitao
doaj   +1 more source

On Coupled Systems of Time-Fractional Differential Problems by Using a New Fractional Derivative

open access: yesJournal of Function Spaces, 2016
The existence of solutions for a coupled system of time-fractional differential equations including continuous functions and the Caputo-Fabrizio fractional derivative is examined.
Ahmed Alsaedi   +3 more
doaj   +1 more source

Existence and uniqueness of solutions to fractional differential equations in the frame of generalized Caputo fractional derivatives

open access: yesAdvances in Difference Equations, 2018
The generalized Caputo fractional derivative is a name attributed to the Caputo version of the generalized fractional derivative introduced in Jarad et al. (J. Nonlinear Sci. Appl. 10:2607–2619, 2017).
Y. Y. Gambo   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy