Results 21 to 30 of about 3,164,995 (317)

A General Framework for Fractional Order Compartment Models [PDF]

open access: yesSIAM Review, 2021
One of the question arising in relation to mathematical models using fractional order derivative is their signifinace. Also compartmental models are extensively used to model various situations which are divided in certain classes. One well known example is infectious disease model.
Angstmann, CN   +5 more
openaire   +2 more sources

Novel Fractional-Order Model Predictive Control: State-Space Approach

open access: yesIEEE Access, 2021
This paper deals with a novel approach to the fractional-order model predictive control in state space. Except well-known fractional-order models of processes (plants) with arbitrary (real) order of the derivatives in fractional differential equations a ...
Ivo Petras
doaj   +1 more source

Mathematical analysis of fractional order alcoholism model

open access: yesAlexandria Engineering Journal, 2023
In this manuscript, we are going to study a novel model of the dynamics of alcohol consumption under induced complications. The mentioned model is considered under the concept of conformable fractional order derivative (CFOD).
Muhammad Sher   +4 more
doaj   +1 more source

FOPI/FOPID Tuning Rule Based on a Fractional Order Model for the Process

open access: yesFractal and Fractional, 2022
This paper deals with the design of a control system based on fractional order models and fractional order proportional-integral-derivative (FOPID) controllers and fractional-order proportional-integral (FOPI) controllers.
H. Meneses   +4 more
semanticscholar   +1 more source

The potential of fractional order distributed MPC applied to steam/water loop in large scale ships [PDF]

open access: yes, 2020
The steam/water loop is a crucial part of a steam power plant. However, satisfying control performance is difficult to obtain due to the frequent disturbance and load fluctuation.
Cajo Diaz, Ricardo Alfredo   +3 more
core   +1 more source

A Note on an Integral Transformation for the Equivalence between a Fractional and Integer Order Diffusion Model

open access: yesMathematics, 2022
This note tackles the equivalence problem between the fractional and integer order diffusion models. Unlike existing approaches, the existence of a unique integral transformation mapping the solution of the integer order model to a solution of the ...
Claudia A. Pérez-Pinacho   +1 more
doaj   +1 more source

A Novel Technique to Control the Accuracy of a Nonlinear Fractional Order Model of COVID-19: Application of the CESTAC Method and the CADNA Library

open access: yesMathematics, 2021
In this paper, a nonlinear fractional order model of COVID-19 is approximated. For this aim, at first we apply the Caputo–Fabrizio fractional derivative to model the usual form of the phenomenon.
S. Noeiaghdam, Sanda Micula, J. Nieto
semanticscholar   +1 more source

On fractional order models for Hepatitis C [PDF]

open access: yesNonlinear Biomedical Physics, 2010
في هذه الورقة، نقدم تعميمًا جزئيًا لنموذج فيروس الالتهاب الكبدي الوبائي الأساسي (HCV) لبيريلسون وآخرون، بما في ذلك مصطلح الاستجابة المناعية. نحن نجادل بأن معادلات الترتيب الكسري أكثر ملاءمة من معادلات الترتيب الصحيح في نمذجة الأنظمة المعقدة التي تشمل الأنظمة البيولوجية. يتم تقديم النموذج ومناقشته. كما نجادل بأن مصطلح الاستجابة المناعية المضافة يمثل بعض
E. Ahmed, H. A. A. El-Saka
openaire   +2 more sources

Signal Smoothing with Time-Space Fractional Order Model

open access: yesMeasurement Science Review, 2021
The time-space fractional-order model (TSFOM) is a generation of the classical diffusion model which is an excellent smoothing method. In this paper, the fractional-order derivative in the model is found to have good performance for peak-preserving.
Li Yuanlu
doaj   +1 more source

Global dynamics of a fractional order model for the transmission of HIV epidemic with optimal control

open access: yesChaos, Solitons & Fractals, 2020
Highlights • Fractional order SEIR epidemic model with two infectious 'stages' is proposed.• Global dynamics of the model is performed.• Numerical simulations using Adam-Beshforth-Moulton method are conducted to support our results.• To present ...
Parvaiz Ahmad Naik, Jian Zu, K. Owolabi
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy