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3441
Distribution of energy in propagation for ocean extreme wave generation in hydrodynamics laboratory
Published 2021-06-01“…The Benjamin Bona Mahony wave group is known to evolve according to the Nonlinear Schrodinger equation. The Hamiltonian governs the dynamics of the phase amplitude and proves the Nonlinear Schrodinger equation's singularity for finite time. …”
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3442
Linear and Riccati matrix equations
Published 1989-01-01“…In this paper we find exact solutions for linear ordinary differential equations of any order when they are given in matrix form, as well as for classes of Riccati matrix equations with two or three arbitrary matrix coefficients. Other nonlinear systems of triangular form are also solved completely.…”
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3443
On oscillation of a food-limited population model with time delay
Published 2003-01-01“…For a scalar nonlinear delay differential equation Ṅ(t) = r(t)N(t)(K − N(h(t)))/(K + s(t)N(g(t))),r(t) ≥ 0, h(t) ≤ t, g(t) ≤ t and some generalizations of this equation, we establish explicit oscillation and nonoscillation conditions. …”
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3444
Existence and Nonexistence of Positive Solutions for a Higher-Order Three-Point Boundary Value Problem
Published 2014-01-01“…This paper is concerned with the existence and nonexistence of positive solutions for a nonlinear higher-order three-point boundary value problem. …”
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3445
First-Order Three-Point Boundary Value Problems at Resonance Part III
Published 2012-01-01“…The main purpose of this paper is to investigate the existence of solutions of BVPs for a very general case in which both the system of ordinary differential equations and the boundary conditions are nonlinear. By employing the implicit function theorem, sufficient conditions for the existence of three-point boundary value problems are established.…”
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3446
Stability of Runge-Kutta Methods for Neutral Delay Differential Equations
Published 2015-01-01“…This paper is concerned with the numerical stability of a class of nonlinear neutral delay differential equations. The numerical stability results are obtained for (k,l)-algebraically stable Runge-Kutta methods when they are applied to this type of problem. …”
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3447
On mixed finite element techniques for elliptic problems
Published 1983-01-01“…The main aim of this paper is to consider the numerical approximation of mildly nonlinear elliptic problems by means of finite element methods of mixed type. …”
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3448
Monotonicity, Concavity, and Convexity of Fractional Derivative of Functions
Published 2013-01-01“…The monotonicity of the solutions of a class of nonlinear fractional differential equations is studied first, and the existing results were extended. …”
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3449
Fixed Points for Contractive Mappings of Integral Type Involving ω-Distance and Applications
Published 2021-01-01“…The proved results are used to investigate the solvability of certain nonlinear integral equations. Four examples are given.…”
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3450
A Note on the Fractional Generalized Higher Order KdV Equation
Published 2018-01-01“…It has showed that the applied method is very useful and is practically well suited for the nonlinear differential equations, those arising in mathematical physics.…”
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3451
Convergence of the New Iterative Method
Published 2011-01-01“…A new iterative method introduced by Daftardar-Gejji and Jafari (2006) (DJ Method) is an efficient technique to solve nonlinear functional equations. In the present paper, sufficiency conditions for convergence of DJM have been presented. …”
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3452
Existence and Multiplicity Results for a Class of Kirchhoff-Type Equations
Published 2024-07-01“…It is important to mention that no asymptotic condition is required in the nonlinear term either at zero or at infinity. Our approach is based on the variational methods and critical point theory.…”
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3453
Association of dust exposure with anxiety and depression in the occupational population: The important role of sleep duration
Published 2025-01-01“…Generalized additive models (GAM) were constructed to explore the nonlinear relationships between dust exposure duration, sleep duration, and mental health outcomes. …”
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3454
The atherogenic index of plasma is associated with an increased risk of diabetes in non-obese adults: a cohort study
Published 2025-01-01“…We also identified a nonlinear relationship between AIP and diabetes risk. …”
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3455
Prognostic value of remnant-like particle cholesterol in ischemic heart failure patients following percutaneous coronary intervention
Published 2025-12-01“…Multivariate Cox regression models were employed to investigate the correlation between RLP-C and the studied outcomes. The nonlinear relationship between RLP-C and MACE was examined through the restricted cubic spline (RCS). …”
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3456
Study on the Regulation Effect of Optogenetic Technology on LFP of the Basal Ganglia Nucleus in Rotenone-Treated Rats
Published 2021-01-01“…In this paper, we want to study the nonlinear features of EEG signals in the striatum and globus pallidus through optogenetic stimulation of the substantia nigra compact part. …”
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3457
Temperature stresses in cylindrical ignot at heating in circular furnaces
Published 2003-11-01“…There is received for the first time solution of the problem of nonlinear thermomechanics (heat conduction and thermoelasticity) for the case of heating of cylinder ingots in the counter-current regime. …”
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3458
Adaptation to Social Complexity
Published 2013-04-01“…By Historical Standards, the Recent Introduction of the Nonlinear Approach into the Scientific World Picture put the Classical Understanding of Space and Time to the Obstruction. …”
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3459
Parameter Estimation for Stochastic Differential Equations Driven by Mixed Fractional Brownian Motion
Published 2014-01-01“…We study the asymptotic properties of minimum distance estimator of drift parameter for a class of nonlinear scalar stochastic differential equations driven by mixed fractional Brownian motion. …”
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3460
Adaptivity in Crashworthiness Calculations
Published 1993-01-01“…h-Adaptive finite element methods for nonlinear transient analysis by explicit time integration are described. …”
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