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481
Nonlinear Vibration of a Continuum Rotor with Transverse Electromagnetic and Bearing Excitations
Published 2012-01-01“…The stability of steady response is analyzed and the amplitude-frequency curve of primary resonance is illustrated. The Runge-Kutta method is adopted to numerically solve transient response of the rotor-bearing system. …”
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482
A comprehensive numerical study exploring the significance of thermally reactive bioconvection in Falkner-Skan flow of Williamson nanomaterials influenced by activation energy and...
Published 2025-02-01“…Similarity transformations are used to convert the system of partial differential equations into a system of ordinary differential equations, which are then numerically solved using the Runge–Kutta–Fehlberg (RKF-45) method. After the system has been altered, the physical parameters that result are examined and shown graphically. …”
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483
Impact of Awareness to Control Malaria Disease: A Mathematical Modeling Approach
Published 2020-01-01“…The solution to the proposed model is derived through an iterative numerical technique, the Runge–Kutta method. The proposed model is simulated for different numeric values of the population of humans and anopheles in each class. …”
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484
Vortex-Induced Vibration of a Cable-Stayed Bridge
Published 2016-01-01“…The dynamic response of the cable-stayed bridge is calculated using Runge-Kutta-Felhberg method in MATLAB for two cases with and without geometric nonlinear terms. …”
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485
Vibration Characteristic Analysis of a Coupling System for Compound Biaxial and Inter-Shaft Bearings
Published 2022-01-01“…Considering the moment of inertia, gyro effect, and structural damping, a one-dimensional beam model is used to perform the MATLAB numerical calculation of the coupling system to obtain the modal characteristics of the system, and based on the ANSYS simulation analysis of the three-dimensional model, a modal test is used to obtain the system modal shape and test frequency response function to verify the rationality of the coupling system model. Based on the Runge-Kutta iterative method and Hamilton’s principle, the nonlinear amplitude-frequency response of the system is calculated while taking into account the influence of the compound biaxial eccentricity, as well as the stiffness and radial clearance of the inter-shaft bearing. …”
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486
Photokinetics of Photothermal Reactions
Published 2025-01-01“…The validity of the model equation was established against simulated data obtained by a fourth-order Runge–Kutta method. It was then used to describe and quantify several situations of photothermal reactions, such as the effects of initial concentration, spectator molecules, and incident radiation intensity, and the impact of the latter on the photonic yield. …”
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487
MAC Layer Energy Consumption and Routing Protocol Optimization Algorithm for Mobile Ad Hoc Networks
Published 2021-01-01“…In order to solve the problem that the analytic solution of differential equations cannot be obtained in the model, a numerical solution of the optimization algorithm is proposed based on the implicit Runge–Kutta method. The MAC layer energy consumption and routing protocol optimization algorithm proposed in this paper can be applied well in various fields.…”
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488
A Mathematical Model of Tumor-Immune and Host Cells Interactions with Chemotherapy and Optimal Control
Published 2024-01-01“…The optimal system is solved using the forward-backward sweep method with fourth-order Runge–Kutta approximation. Reduction in tumor cell growth has been observed due to the increase in recruitment of immune cells activated by tumor cell antigenicity and the rate of conversion of resting immune cells into active immune cells. …”
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489
Study on the Dynamics Characteristic of Gear Cutting Tooth Fault Under Variable Load Excitation
Published 2017-01-01“…On the basis of that,the variable step size four- order Runge- Kutta numerical method is used to solve to the dynamics model and the dynamics mechanism of gear cutting tooth is studied. …”
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490
Effect of thermophoresis on particle deposition on an inclined plate in variable viscosity fluid flow within a porous medium
Published 2025-03-01“…This study utilizes the similarity transformation technique, Runge-Kutta integration, and a shooting approach to address the governing equations for continuity, momentum, energy, and concentration fields. …”
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491
Reappraising double pendulum dynamics across multiple computational platforms
Published 2025-02-01“…These were solved numerically using the efficient Runge-Kutta-Fehlberg method, implemented in Python, R, GNU Octave, and Julia, while runtimes and memory usage were extensively benchmarked across these environments. …”
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492
Unsteady flow and heat transfer optimization of viscous fluid with bioconvection over a rotating stretchable disk and gyrotactic motile microorganisms
Published 2025-02-01“…The boundary value problem is numerically solved using shooting method with Runga-Kutta technique by converting equations into initial value problem. …”
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493
Hybrid in-situ and ex-situ hydrolysis of catalytic epoxidation neem oil via a peracid mechanism
Published 2025-01-01“…Lastly, a mathematical model was developed using MATLAB, applying the fourth-order Runge–Kutta method and simulated annealing optimization to determine the best-fitting kinetic model. …”
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494
Analysis of Dynamic Characteristics of Grease-Lubricated Tapered Roller Bearings
Published 2018-01-01“…The impacts of load, grease rheological properties, and temperature on the roller tilt and skew and the bearing slip were simulated by using the fourth-order Runge–Kutta method. The results show that the roller tilt angle in the unloaded zone is obviously larger than that in the loaded zone, while the roller skew angle in the unloaded zone is smaller than that in the loaded zone. …”
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495
Breather and solitonic behavior of parametric Sine–Gordon equation with phase-shift and driven term
Published 2025-03-01“…Numerically, the explicit finite difference scheme and the fourth-order Runge–Kutta finite difference method are implemented. The model equation is formulated for a 0−π−0 junction with appropriate initial and boundary conditions. …”
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496
A Strongly A-Stable Time Integration Method for Solving the Nonlinear Reaction-Diffusion Equation
Published 2015-01-01“…Therefore numerical time integration methods with stiff stability such as implicit Runge-Kutta methods and implicit multistep methods are required to solve the large-scale stiff ODE system. …”
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497
Machine-learning emergent spacetime from linear response in future tabletop quantum gravity experiments
Published 2025-01-01“…Our machine reads spatially and temporarily inhomogeneous linear response data of the condensed matter system, and incorporates a novel layer that implements the Runge–Kutta method to achieve better numerical control. …”
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498
Investigation of Dynamic Load Sharing Behavior for Herringbone Planetary Gears considering Multicoupling Manufacturing Errors
Published 2021-01-01“…By employing the variable-step Runge–Kutta approach to calculate the system dynamic response, in conjunction with the presented calculation approach of the HPGT load sharing coefficient, the relationships among manufacturing errors, component floating, and load sharing are numerically obtained. …”
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499
Financial development, research in finance, and economic growth
Published 2025-12-01“…Utilizing the two-step system GMS method and the Runge-Kutta framework, the research defines and addresses a differential equation, achieving remarkable precision in economic modeling by fine-tuning step sizes and adapting the algorithm to the specific economic context. …”
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500
Inclined Magnetic Field on Mixed Convection Darcy–Forchheimer Maxwell Nanofluid Flow Over a Permeable Stretching Sheet With Variable Thermal Conductivity: The Numerical Approach
Published 2024-01-01“…These ODEs are then solved using the shooting method and a fourth-order Runge-Kutta methodology. The study explores how fluid flow velocity is affected by magnetic field inclination and suction/injection effects. …”
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