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2321
Second-Order Systems of ODEs Admitting Three-Dimensional Lie Algebras and Integrability
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2322
A frictional contact problem with normal damped response conditions and thermal effects for a thermo-electro-viscoelastic material
Published 2025-01-01“…The author establishes the existence of a unique weak solution to the problem by utilizing classical results for evolutionary quasivariational elliptic inequalities, parabolic differential equations and fixed point arguments. Design/methodology/approach – The author establishes a variational formulation for the model and proves the existence of a unique weak solution to the problem using classical results for evolutionary quasivariational elliptic inequalities, parabolic difierential equations and fixed point arguments. …”
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2323
Predictive Model for Deformation of Adjacent Pipelines Caused by Tunnel Boring in Twin-Lane Tunnels in Soft Ground Layers
Published 2025-01-01“…To create a discretized prediction model for the deformation of an adjacent pipeline, the pipeline structure is discretized, the differential equations governing the longitudinal deformation of the pipeline are inferred, and the displacement expressions and the solution methods of the virtual nodes of each unit are provided after discretization. …”
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2324
Development of an information measuring and control system for a quadrocopter
Published 2021-12-01“…The coordinate systems (fixed and mobile) and the kinematic scheme are given, according to which a system of differential equations is presented. The system describes the dynamics of the quadrocopter movement and takes into account the expected smooth movement of the quadrocopter with small roll and pitch angles. …”
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2325
Analysis of non scalar control problems for parabolic systems by the block moment method
Published 2023-10-01“…We also deduce estimates on the cost of controllability when the final time goes to the minimal null control time.We illustrate how the method works on a few examples of such abstract controlled systems and then we deal with actual coupled systems of one dimensional parabolic partial differential equations. Our strategy enables us to tackle controllability issues that seem out of reach by existing techniques.…”
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2326
Electromagnetic Low-Frequency Dipolar Excitation of Two Metal Spheres in a Conductive Medium
Published 2012-01-01“…The calculation of the exact solutions, satisfying Laplace’s and Poisson’s differential equations, leads to infinite linear systems, solved approximately within any order of accuracy through a cut-off procedure and via numerical implementation. …”
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2327
Exploring the Inducement for Social Awareness Behavior and Optimal Control Strategy on Nipah Virus Transmission
Published 2024-01-01“…We employ a system of nonlinear ordinary differential equations to dissect how the dynamics of primary infections impact the spread of Nipah disease. …”
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2328
Solving Parabolic and Hyperbolic Equations with Variable Coefficients Using Space-Time Localized Radial Basis Function Collocation Method
Published 2021-01-01“…The advantages of such formulation are (i) time discretization as implicit, explicit, θ-method, method-of-line approach, and others are not applied; (ii) the time stability analysis is not discussed; and (iii) recomputation of the resulting matrix at each time level as done for other methods for solving partial differential equations (PDEs) with variable coefficients is avoided and the matrix is computed once. …”
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2329
Effect of Intervention of Vaccination and Treatment on the Transmission Dynamics of HBV Disease: A Mathematical Model Analysis
Published 2022-01-01“…The model is studied qualitatively using the stability theory of differential equations and the effective reproductive number which represents the epidemic indicator is obtained from the largest eigenvalue of the next-generation matrix. …”
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2330
Motion Control of a 4WS4WD Path-Following Vehicle: Dynamics-Based Steering and Driving Models
Published 2021-01-01“…The vehicle path-following dynamics are modeled using the classical mass-damper-spring vibration theory, which is described by three ordinary differential equations of second order with lateral, heading and velocity deviations, and control parameters. …”
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2331
A Multibody Model of Tilt-Rotor Aircraft Based on Kane’s Method
Published 2019-01-01“…The generalized active forces and generalized inertial forces of both the body and the nacelles (with rotors) are obtained, respectively, and the first-order differential equations of the generalized rates are obtained. …”
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2332
<i>DynPy</i>—Python Library for Mechanical and Electrical Engineering: An Assessment with Coupled Electro-Mechanical Direct Current Motor Model
Published 2025-01-01“…In the paper examples for obtaining analytical and numerical solutions of the systems described with ordinary differential equations were presented. The assessment of solver accuracy was conducted utilising a coupled electro-mechanical model of a direct current motor, with <i>MATLAB/Simulink</i> (R2022b) used as a reference tool. …”
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2333
Micromechanics of Cracked Laminates under Uniaxial Load: A Comparison between Approaches
Published 2017-01-01“…All of these include the process of defining 0/90s laminate unit cell, from which governing differential equations and corresponding boundary conditions are stated. …”
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2334
An integrated toolbox for creating neuromorphic edge applications
Published 2025-01-01“…For instance, the mathematical foundation involves differential equations rather than basic activation functions. …”
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2335
Effect of Rising Temperature on Lyme Disease: Ixodes scapularis Population Dynamics and Borrelia burgdorferi Transmission and Prevalence
Published 2019-01-01“…A temperature-driven seasonal model of Borrelia burgdorferi (Lyme disease) transmission among four host types is constructed as a system of nonlinear ordinary differential equations. The model is developed and parametrized based on a collection of lab and field studies. …”
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2336
A quantitative analysis of Koopman operator methods for system identification and predictions
Published 2022-12-01“…It is based on the so-called Koopman operator, which uses the well-known link between differential equations and linear transport equations. Data-driven methods recover specific finite-dimensional approximations of the Koopman operator, which can be understood as a transport operator. …”
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2337
A Multiscale Fractal Approach for Determining Cushioning Curves of Low-Density Polymer Foams
Published 2025-01-01“…To capture the multiscale nature of the dynamic response behavior of two low-density foams to sustain impact loads, fractional differential equations of motion are used to qualitatively and quantitatively describe the dynamic response behavior, assuming restoring forces for each foam characterized, respectively, by a polynomial of heptic degree and by a trigonometric tangential function. …”
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2338
Analyzing crop production: Unraveling the impact of pests and pesticides through a fractional model
Published 2024-07-01“…The feasibility of every possible nonnegative equilibrium and its stability characteristics are explored utilizing the stability theory of fractional differential equations. Our model analysis reveals that in a continuous spray approach, the roles of pesticide abatement rate and pesticide uptake rate can be interchanged. …”
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2339
On a New Epidemic Model with Asymptomatic and Dead-Infective Subpopulations with Feedback Controls Useful for Ebola Disease
Published 2017-01-01“…The global stability is formally discussed by using tools of qualitative theory of differential equations by using Gauss-Stokes and Bendixson theorems so that neither Lyapunov equation candidates nor the explicit solutions are used. …”
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2340
Physics-Informed Denoising Model for Dynamic Data Recovery of Power Systems
Published 2025-01-01“…In light of the poor interpretability exhibited by traditional machine learning (ML) methods in denoising, a physics-informed denoising model (PIDM) for dynamic data recovery is proposed. The differential equations of physical models in power systems are employed to guide the training of PIDM. …”
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