Results 21 to 30 of about 1,373,120 (209)
A Comprehensive Mathematical Model for SARS-CoV-2 in Caputo Derivative
Fractal and Fractional, 2021 In the present work, we study the COVID-19 infection through a new mathematical model using the Caputo derivative. The model has all the possible interactions that are responsible for the spread of disease in the community.
Yu Gu +3 more
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Spectro-consistent discretization of Navier-Stokes: a challenge to RANS and LES [PDF]
, 1998 In this paper, we discuss the results of a fourth-order, spectro-consistent discretization of the incompressible Navier-Stokes equations. In such an approach the discretization of a (skew-)symmetric operator is given by a (skew-)symmetric matrix ...
Veldman, A.E.P. +5 more
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Mathematics, 2023 Studying the ages of mobile phones is considered one of the most important things in the recent period in the field of shopping and modern technology.
Essam A. Ahmed +3 more
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Mathematics, 2022 An engineered fluid, called nanofluid, is expected to have better thermal conductivity than conventional working fluids. The superior heat transfer performance and various possible applications promote the analysis of nanofluids in different flow ...
Rusya Iryanti Yahaya +4 more
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Numerical comparison of pipe-column-separation models [PDF]
, 1994 Results comparing six column-separation numerical models for simulating localized vapor cavities and distributed vaporous cavitation in pipelines are presented.
Bergant, A., Simpson, A.
core +1 more source
Closed‐form expression for coverage and average rate of 2D and 3D cellular networks
Electronics Letters, 2019 This Letter proposes a novel tractable solution for the average rate in cellular networks. Specifically, the authors derive a closed‐form solution based on bipolar point processes to simplify the computational complexity, which may be conveniently ...
Hui Zhang, Luan Li, Dan Keun Sung
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Study of fractional variable order COVID-19 environmental transformation model
Open Physics, 2023 In this study, we explore the epidemic spread of the coronavirus using the Caputo fractional variable order derivative as variable order derivative provides a natural extension to classical as well as fractional order derivatives.
Zada Mian Bahadur +3 more
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Bound states in weakly deformed waveguides: numerical versus analytical results [PDF]
, 2017 We study bound states in weakly deformed and heterogeneous waveguides, and compare analytical predictions using a recently developed perturbative method with precise numerical results for three different configurations: a homogeneous asymmetric waveguide,
FRANCISCO M. FERNÁNDEZ +10 more
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Analyzing the Stability for the Motion of an Unstretched Double Pendulum near Resonance
Applied Sciences, 2021 This work looks at the nonlinear dynamical motion of an unstretched two degrees of freedom double pendulum in which its pivot point follows an elliptic route with steady angular velocity.
Tarek S. Amer +3 more
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Mathematical modeling of the source and environment response for the equation of geoelectrics
Қарағанды университетінің хабаршысы. Математика сериясы, 2019 In this paper an algorithm is proposed for determining the source of excitation of electromagnetic waves emitted by the Ground - penetrating radar (GPR) device as a function of time.
K.T. Iskakov +4 more
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