Results 51 to 60 of about 5,795,372 (310)

On Numerical Analysis of Bio-Ethanol Production Model with the Effect of Recycling and Death Rates under Fractal Fractional Operators with Three Different Kernels

Mathematics, 2022
The main metabolism of yeasts produces bioethanol. Bioethanol, which is produced from biomass and bioenergy crops, has been promoted as one of the most viable alternatives to fossil fuels.
Rubayyi T. Alqahtani, Shabir Ahmad, Ali Akgül   +2 more
doaj   +1 more source

Mathematical Modelling of Tuberculosis Outbreak in an East African Country Incorporating Vaccination and Treatment

Computation, 2023
In this paper, we develop a deterministic mathematical epidemic model for tuberculosis outbreaks in order to study the disease’s impact in a given population.
Kayode Oshinubi, Olumuyiwa James Peter, Emmanuel Addai, Enock Mwizerwa, Oluwatosin Babasola, Ifeoma Veronica Nwabufo, Ibrahima Sane, Umar Muhammad Adam, Adejimi Adeniji, Janet O. Agbaje   +9 more
doaj   +1 more source

Dissipativity of numerical schemes [PDF]

Nonlinearity, 1991
The authors show that the way in which finite differences are applied to the nonlinear term in certain partial differential equations (PDES) can mean the difference between dissipation and blow up. For fixed parameter values and arbitrarily fine discretizations they construct solutions which blow up in finite time for two semi-discrete schemes.
C Foias, M S Jolly, I G Kevrekidis, E S Titi   +3 more
openaire   +1 more source

Blood Flow in Multi-Sinusoidal Curved Passages with Biomimetic Rheology: An Application of Blood Pumping

Mathematics, 2022
The unsteady flow of biological liquid through non-uniform pumps under porosity impacts is considered. The Jeffrey fluid is used as blood in the current study, which is also characterized as viscoelastic fluid because of its dual characteristics: on the ...
Gamal Hassan Sewify, Khurram Javid, Muhammad Adeel, Aamar Abbasi, Sami Ullah Khan, Mohamed Omri, Lioua Kolsi   +6 more
doaj   +1 more source

Efficient numerical scheme for a dendritic solidification phase field model with melt convection

Journal of Computational Physics, 2019
In this paper, we consider numerical approximations for a dendritic solidification phase field model with melt convection in the liquid phase, which is a highly nonlinear system that couples the anisotropic Allen-Cahn type equation, the heat equation ...
Chuanjun Chen, Xiaofeng Yang
semanticscholar   +1 more source

Numerical Schemes for Signature Kernels

SIAM Journal on Numerical Analysis
Signature kernels have emerged as a powerful tool within kernel methods for sequential data. In the paper "The Signature Kernel is the solution of a Goursat PDE", the authors identify a kernel trick that demonstrates that, for continuously differentiable paths, the signature kernel satisfies a Goursat problem for a hyperbolic partial differential ...
Cass, Thomas, Piatti, Francesco, Pei, Jeffrey   +2 more
openaire   +3 more sources

Fractional-Calculus Analysis of the Dynamics of a Vector-Borne Infection with Preventive Measures

Fractal and Fractional
Vector-borne infections pose serious public health challenges due to the complex interplay of biological, environmental, and social factors. Therefore, comprehensive approaches are essential to mitigate the burden of vector-borne infections and minimize ...
Rashid Jan, Salah Boulaaras, Asma Alharbi, Normy Norfiza Abdul Razak   +3 more
doaj   +1 more source

On System of Variable Order Nonlinear p-Laplacian Fractional Differential Equations with Biological Application

Mathematics, 2023
The study of variable order differential equations is important in science and engineering for a better representation and analysis of dynamical problems. In the literature, there are several fractional order operators involving variable orders.
Hasib Khan, Jehad Alzabut, Haseena Gulzar, Osman Tunç, Sandra Pinelas   +4 more
doaj   +1 more source

A numerical scheme for non-Newtonian fluids and plastic solids under the GPR model [PDF]

Journal of Computational Physics, 2018
A method for modeling non-Newtonian fluids (dilatants and pseudoplastics) by a power law under the Godunov-Peshkov-Romenski model is presented, along with a new numerical scheme for solving this system.
H. Jackson, N. Nikiforakis
semanticscholar   +1 more source

Numerical schemes for G-Expectations

Electronic Journal of Probability, 2012
Electronic Journal of Probability ...
openaire   +4 more sources