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1681
Mathematical model of penetration of cylindrical electromagnetic fields with axial symmetry through the plane screen from permalloy
Published 2020-06-01“…The boundary-value problem is based on the use of differential Maxwell equations and complementary nonlinear differential equation for the field of magnetization, characterizing the permalloy. …”
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1682
Global dynamics of a vector-host epidemic model with age of infection
Published 2017-09-01“…In this paper, a partial differential equation (PDE) model is proposed to explore the transmission dynamics of vector-borne diseases. …”
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1683
Application of Laplace Transform For Solving Population Growth and Decay Models.
Published 2024“…Laplace can be used to convert complex differential equations to a simpler form having polynomials, convert derivatives into multiple domain variables, and then convert the polynomials back to the differential equation using the Inverse Laplace transform, telecommunication field to send signals to both sides of the medium. …”
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1684
A Four-Zone Model and Nonlinear Dynamic Analysis of Solution Multiplicity of Buoyancy Ventilation in Underground Building
Published 2020-01-01“…The underground structure is divided to four zones, a differential equation is established in each zone, and therefore, there are four differential equations in the underground structure. …”
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1685
A Finite Difference Method for Solving Unsteady Fractional Oldroyd-B Viscoelastic Flow Based on Caputo Derivative
Published 2023-01-01“…In order to improve the degree of accuracy, the mixed partial derivative including the fractional derivative in the differential equation is converted effectively by integrating by parts instead of by direct discretization. …”
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1686
Numerical Solutions of Micropolar Nanofluid over an Inclined Surface Using Keller Box Analysis
Published 2020-01-01“…Compatible transformations are implemented to attain the nonlinear differential equation from the boundary value PDE’s. The physical quantities of practical interest are treated by graphically as well as numerically. …”
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1687
Richards equation for the assessment of landslide hazards
Published 2025-01-01“…However, as a highly nonlinear parabolic partial differential equation (PDE), it has limited analytic solutions, which often lack precision in practical scenarios. …”
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1688
Supercritical Nonlinear Vibration of a Fluid-Conveying Pipe Subjected to a Strong External Excitation
Published 2016-01-01“…The motion measured from each of curved equilibrium configurations is governed by a nonlinear integro-partial-differential equation with variable coefficients. The Galerkin method is employed to discretize the governing equation into a gyroscopic system consisting of a set of coupled nonlinear ordinary differential equations. …”
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1689
Combined Damped Sinusoidal Oscillation Solutions to the (3 + 1)-D Variable-Coefficient Generalized NLW Equation in Liquid with Gas Bubbles
Published 2022-01-01“…The damped sinusoidal oscillations for two cases of the nonlinear wave ordinary differential equation will be studied. Using suitable mathematical assumptions, the novel kinds of solitary, periodic, and singular soliton solutions are derived and established in view of the trigonometric and rational functions of the governing equation. …”
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1690
Simulation and Domain Identification of Sea Ice Thermodynamic System
Published 2012-01-01“…Based on the measured data and characteristics of sea ice temperature distribution in space and time, this study is intended to consider a parabolic partial differential equation of the thermodynamic field of sea ice (coupled by snow, ice, and sea water layers) with a time-dependent domain and its parameter identification problem. …”
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1691
Comparative Studies of Nonlinear Models and Their Applications to Magmatic Evolution and Crustal Growth of the Huai’an Terrane in the North China Craton
Published 2025-01-01“…This paper introduces these nonlinear functions derived from a unified differential equation, with parameters that reflect their relative nonlinearities and singularities, enabling their comparative application. …”
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1692
Optimal investment game for two regulated players with regime switching
Published 2024-12-01“…In the first case, the associated Hamilton-Jacobi-Bellman-Isaacs (HJBI) equation was an elliptic partial differential equation (PDE). By solving an auxiliary problem, we demonstrated the existence and regularity of the value function. …”
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1693
Research on Constriction Resistance of Drum Gear Coupling of High Speed EMU
Published 2021-10-01“…Make use of the load distribution method to calculate the relationship between the load of each tooth and the total load of the coupling according to the flexural approximate differential equation of single tooth,according to the Hertz contact theory and the rough surface contact theory,the actual contact area and constriction resistance are calculated. …”
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1694
Preface
Published 2008-09-01“…In Athens, he became interested inecotoxicology and partial differential equation models ofphysiologically structured populations. …”
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1695
Vibration of a Cylindrical Tunnel under a Centric Point-Source Explosion
Published 2017-01-01“…The governing equation of the motion is a fourth-order partial differential equation, for which a numerical method combining finite difference with the implicit Newmark-β method was adopted. …”
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1696
Deterministic and Stochastic Study for an Infected Computer Network Model Powered by a System of Antivirus Programs
Published 2017-01-01“…Furthermore, we use the Itô formula and some other theoretical theorems of stochastic differential equation to discuss the extinction and the stationary distribution of our system. …”
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1697
Analysis of Bianchi Type V Holographic Dark Energy Models in General Relativity and Lyra’s Geometry
Published 2021-01-01“…The solutions of differential equation fields have been obtained by considering two specific cases, namely, the expansion scalar θ in the model is proportional to the shear scalar σ and the average scale factor taken as hybrid expansion form. …”
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1698
Numerical Solutions of Duffing Van der Pol Equations on the Basis of Hybrid Functions
Published 2023-01-01“…The next technique is to convert this equation into a system of ordinary differential equation of the first order (SODE) and solve it according to the proposed approximate method. …”
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1699
Quantization of a 3D Nonstationary Harmonic plus an Inverse Harmonic Potential System
Published 2016-01-01“…In particular, the Nikiforov-Uvarov method with an appropriate coordinate transformation enabled us to reduce the eigenvalue equation of the invariant operator, which is a second-order differential equation, to a hypergeometric-type equation that is convenient to treat. …”
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1700
A Pest Management Model with Stage Structure and Impulsive State Feedback Control
Published 2015-01-01“…We get the sufficient condition for the existence of the order-1 periodic solution by differential equation geometry theory and successor function. …”
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