نتایج جستجو برای: bashforth method
تعداد نتایج: 1630114 فیلتر نتایج به سال:
in this thesis, using concepts of wavelets theory some methods of the solving optimal control problems (ocps). governed by time-delay systems is investigated. this thesis contains two parts. first, the method of obtaining of the ocps in time delay systems by linear legendre multiwavelets is presented. the main advantage of the meth...
In this paper, we present a mathematical model for the study of resistance to tuberculosis treatment using fractional derivatives in Caputo sense. This takes into account relationship between Tuberculosis, HIV/AIDS, and diabetes differentiates cases MDR-TB (multidrug-resistant tuberculosis) XDR-TB (extensively drug-resistant tuberculosis). We basic results associated with behavior disease-free ...
The main metabolism of yeasts produces bioethanol. Bioethanol, which is produced from biomass and bioenergy crops, has been promoted as one the most viable alternatives to fossil fuels. following reaction represents all knowledge we have regarding intracellular reactions their regulatory mechanisms: biomass+substrates→ethanol+biomass(morecells). Atangana suggested new operators based on a combi...
This study aims to structure and evaluate a new COVID-19 model which predicts vaccination effect in the Kingdom of Saudi Arabia (KSA) under Atangana-Baleanu-Caputo (ABC) fractional derivatives. On statistical aspect, we analyze collected data fully vaccinated people from June 01, 2021, February 15, 2022. Then apply Eviews program find best for predicting against this pandemic, based on daily se...
in the present work, a simple and sensitive method was developed for determination of morphine and heroin using gold nanoparticles as resonance rayleigh scattering (rrs) and colorimetric technique’s probe. synthesized gold nanoparticles by sodium citrate reduction method have a negative charge layer on their surfaces because of self-assembled citrate anions on their surface. binding of morphin...
abstract objectives gradual increase length and complexity of utterance (gilcu) therapy method is a form of operant conditioning. this type of treatment is very precise and controlled that is done in 54 steps in 3 speech situations consisted of monologue, reading and conversation. this study aimed to examine the effects of gilcu treatment method on reduction of speech dysfluency of school-age...
In this paper the Benettin-Wolf algorithm to determine all Lyapunov exponents adapted a class of non-commensurate fractional-order systems modeled by Caputo's derivative and corresponding Matlab code are presented. The continues work started in [Danca & Kuznetsov, 2018], where commensurate is given. To integrate extended system, Adams-Bashforth-Moulton for fractional differential equations util...
In this paper, we propose a mathematical study to simulate the dynamics of alkali–silica reaction (ASR) by using Caputo fractional derivative. We solve non-linear fractional-order system containing six differential equations understand ASR. For proving existence unique solution, use some recent novel properties Mittag–Leffler function along with fixed point theory. The stability proposed is als...
In this manuscript, a qualitative analysis of the mathematical model novel coronavirus (COVID-19) involving anew devised fractal-fractional operator in Caputo sense having fractional-order q and fractal dimension p is considered. The concerned composed eight compartments: susceptible, exposed, infected, super-spreaders, asymptomatic, hospitalized, recovery fatality. When, choosing order one we ...
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