-
2121
A New Approach to Black Hole Quasinormal Modes: A Review of the Asymptotic Iteration Method
Published 2012-01-01“…We discuss how to obtain black hole quasinormal modes (QNMs) using the asymptotic iteration method (AIM), initially developed to solve second-order ordinary differential equations. We introduce the standard version of this method and present an improvement more suitable for numerical implementation. …”
Get full text
Article -
2122
Theoretical investigation on models of circadian rhythms based on dimerization and proteolysis of PER and TIM
Published 2017-09-01“…By imposing assumptions that the dimerization reactions were fast and dimeric proteins were in rapid equilibrium, they reduced the model to a pair of nonlinear ordinary differential equations of mRNA and total protein concentrations. …”
Get full text
Article -
2123
Elasticity Solutions for Sandwich Arches considering Permeation Effect of Adhesive
Published 2020-01-01“…The governing equations of the arch are solved by the layer-wise method, which turns the differential equations with variable coefficients into constant coefficients. …”
Get full text
Article -
2124
Nonlinear Dynamics Analysis of the Wind Turbine Gear Transmission System Considering Friction Effect
Published 2023-10-01“…After nondimensionalization, the dynamics differential equations are obtained. Runge-Kutta methods are adopted to solve equations and the nonlinear dynamic response of the wind turbine gear transmission system is acquired. …”
Get full text
Article -
2125
A Mathematical and Numerically Integrable Modeling of 3D Object Grasping under Rolling Contacts between Smooth Surfaces
Published 2011-01-01“…A set of 1st-order differential equations governing rotational motions of each fingertip and the object and updating arc-length parameters should be accompanied with the Euler-Lagrange equations. …”
Get full text
Article -
2126
Holographic reconstruction of black hole spacetime: machine learning and entanglement entropy
Published 2025-01-01“…Utilizing neural ordinary differential equations alongside Monte-Carlo integration, we develop a method tailored for continuous training functions to extract the general isotropic bulk metric from entanglement entropy data. …”
Get full text
Article -
2127
Mathematical Modeling of Coccidiosis Dynamics in Chickens with Some Control Strategies
Published 2024-01-01“…Using the theory of differential equations, the invariant set of the model was derived, and the model’s solution was found to be mathematically and biologically significant. …”
Get full text
Article -
2128
A Reduced Order Model Based on ANN-POD Algorithm for Steady-State Neutronics and Thermal-Hydraulics Coupling Problem
Published 2023-01-01“…Due to the high-dimensional partial differential equations (PDEs) derived from the N/TH system, it is usually time consuming to solve such a large-scale nonlinear equation by the traditional numerical solution method of PDEs. …”
Get full text
Article -
2129
Artificial neural networks for stability analysis and simulation of delayed rabies spread models
Published 2024-11-01“…This study addressed the complexity of rabies spread by integrating two critical delay effects—vaccination efficacy and incubation duration—into a delay differential equations model, capturing more realistic infection patterns between dogs and humans. …”
Get full text
Article -
2130
Effects of Thermodiffusion and Chemical Reaction on Magnetohydrodynamic-Radiated Unsteady Flow Past an Exponentially Accelerated Inclined Permeable Plate Embedded in a Porous Mediu...
Published 2023-01-01“…The governing nondimensional set of coupled nonlinear partial differential equations with related initial and boundary conditions are solved numerically by using the accurate and efficient DuFort–Frankel’s explicit finite difference method. …”
Get full text
Article -
2131
Analysis of Fractional-Order Regularized Long-Wave Models via a Novel Transform
Published 2022-01-01“…In fact, when compared to other analytical techniques for solving nonlinear fractional partial differential equations, the present method might be considered one of the finest.…”
Get full text
Article -
2132
The Feyn-structure of Yangian symmetry
Published 2025-01-01“…Previous applications of the Yangian suggest to employ the resulting differential equations for bootstrapping multi-loop integrals beyond the dual conformal case. …”
Get full text
Article -
2133
On Regularization of an Optimal Control Problem for Ill-Posed Nonlinear Elliptic Equations
Published 2020-01-01Get full text
Article -
2134
Characterization of the dynamic behavior of nonlinear biosystems in the presence of model uncertainty using singular invariance PDEs: Application to immobilized enzyme and...
Published 2010-03-01“…The problem of interest is addressed within the context of singular partial differential equations (PDE) theory, and in particular, through a system of singular quasi-linear invariance PDEs for which a general set of conditions for solvability is provided. …”
Get full text
Article -
2135
Conciliating accuracy and efficiency to empower engineering based on performance: a short journey
Published 2023-06-01“…The art of modeling for describing the behavior of complex systems from the solution of partial differential equations that are expected to govern their responses. …”
Get full text
Article -
2136
Qualitative Properties of the Solution of a Conjugate Problem of Thermal Convection
Published 2024-02-01“…Thus, the problem was reduced to a system of 10 nonlinear integro-differential equations. Its conjugate and inverse nature is determined by the four functions of time. …”
Get full text
Article -
2137
Hopf Bifurcation, Cascade of Period-Doubling, Chaos, and the Possibility of Cure in a 3D Cancer Model
Published 2015-01-01“…We study a cancer model given by a three-dimensional system of ordinary differential equations, depending on eight parameters, which describe the interaction among healthy cells, tumour cells, and effector cells of immune system. …”
Get full text
Article -
2138
Numerical Study on Resistance Change Characteristics of Phase Change Materials
Published 2021-01-01“…To study the characteristics of the phase change materials, a numerical simulation model of the resistive change unit based on the finite element method and the classic nucleation/growth theory is established, while the partial differential equations of electricity and heat conduction and the discrete formula of the finite element are also derived. …”
Get full text
Article -
2139
Development of a Family of Chaotic Systems with Infinite Equilibria and Its Application for Image Encryption
Published 2022-01-01“…Fourth-order autonomous nonlinear differential equations can exhibit chaotic properties. In this study, we propose a family of fourth-order chaotic systems with infinite equilibrium points whose equilibria form closed curves of different shapes. …”
Get full text
Article -
2140
Raves, clubs and ecstasy: the impact of peer pressure
Published 2005-10-01“…In this study, a system of differential equations is used to model the peer-driven dynamics of ecstasy use. …”
Get full text
Article