Results 1 to 10 of about 25,484,306 (377)

Mathematical Model

open access: yesDefinitions, 2020
Our ordinary differential equation model is presented below in non-dimensional form. The model describes the dynamics of two populations of bacteria, those containing the luminescent plasmid (n +) and those who have lost the plasmid (n −).
Co
semanticscholar   +3 more sources

Accelerometer application mathematical model

open access: yesLietuvos Matematikos Rinkinys, 2023
The positioning problem considered in this paper is an attempt to find system’s of a few points position using accelerations. Today’s industry provides with various types of accelerometers suitable for acceleration measure.
Vincas Benevičius   +1 more
doaj   +3 more sources

Anisotropic Cosmological Model in a Modified Theory of Gravitation

open access: yesUniverse, 2021
Current observations indicate that, on a large enough scale, the universe is homogeneous and isotropic. However, this does not preclude the possibility of some anisotropy having occurred during the early stages of the evolution of the universe, which ...
Rishi Kumar Tiwari   +3 more
doaj   +1 more source

Fractional order mathematical model of monkeypox transmission dynamics

open access: yesPhysica Scripta, 2022
In this paper, we present a deterministic mathematical model of monkeypox virus by using both classical and fractional-order differential equations. The model includes all of the possible interactions that contribute to disease spread in the population ...
O. J. Peter   +5 more
semanticscholar   +1 more source

Multigrid methods for improving the variational data assimilation in numerical weather prediction [PDF]

open access: yesTellus: Series A, Dynamic Meteorology and Oceanography, 2014
Two conditions are needed to solve numerical weather prediction models: initial condition and boundary condition. The initial condition has an especially important bearing on the model performance.
Youn-Hee Kang   +2 more
doaj   +1 more source

FLRW Cosmological Models with Dynamic Cosmological Term in Modified Gravity

open access: yesUniverse, 2021
Although the standard lambda cold dark matter cosmological model is quite successful in describing the universe, there are still several issues that are still not resolved.
Rishi Kumar Tiwari   +2 more
doaj   +1 more source

A Mathematical Model of COVID-19 with Vaccination and Treatment

open access: yesComputational and Mathematical Methods in Medicine, 2021
We formulate and theoretically analyze a mathematical model of COVID-19 transmission mechanism incorporating vital dynamics of the disease and two key therapeutic measures—vaccination of susceptible individuals and recovery/treatment of infected ...
M. L. Diagne   +3 more
semanticscholar   +1 more source

Mathematical Analysis of Fractal-Fractional Mathematical Model of COVID-19

open access: yesFractal and Fractional, 2023
In this work, we modified a dynamical system that addresses COVID-19 infection under a fractal-fractional-order derivative. The model investigates the psychological effects of the disease on humans. We establish global and local stability results for the
Muhammad Sinan, Nadiyah Hussain Alharthi
doaj   +1 more source

WizardMath: Empowering Mathematical Reasoning for Large Language Models via Reinforced Evol-Instruct [PDF]

open access: yesInternational Conference on Learning Representations, 2023
Large language models (LLMs), such as GPT-4, have shown remarkable performance in natural language processing (NLP) tasks, including challenging mathematical reasoning.
Haipeng Luo   +9 more
semanticscholar   +1 more source

Entropy measures of the metal–organic network via topological descriptors

open access: yesMain Group Metal Chemistry, 2023
A family of chemical compounds known as metal–organic networks (MONs) is composed mainly of clusters of metal ions with organic ligands. It can increase volatility or make substances soluble in organic solvents.
Zhang Xiujun   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy