Positive Solutions for Systems of Second-Order Difference Equations by Johnny Henderson, Rodica Luca

“…We study the existence and nonexistence of positive solutions of some systems of nonlinear second-order difference equations subject to multipoint boundary conditions which contain some positive constants.…”
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Global Dynamics, Boundedness, and Semicycle Analysis of a Difference Equation by Abdul Qadeer Khan, Hamdy El-Metwally

“…In this paper, we explore local stability, attractor, periodicity character, and boundedness solutions of the second-order nonlinear difference equation. Finally, obtained results are verified numerically.…”
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Solving Fractional Difference Equations Using the Laplace Transform Method by Li Xiao-yan, Jiang Wei

“…On these bases, linear and nonlinear fractional initial value problems are solved by the Laplace transform method.…”
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Averaging of multivalued differential equations by G. Grammel

“…Nonlinear multivalued differential equations with slow and fast subsystems are considered. …”
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A Note on the Fractional Generalized Higher Order KdV Equation by Yongyi Gu

“…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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Polynomial and Rational Approximations and the Link between Schröder’s Processes of the First and Second Kind by François Dubeau

“…We show that Schröder’s processes of the first kind and of the second kind to obtain a simple root of a nonlinear equation are related by polynomial and rational approximations.…”
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Periodic Solutions for a System of Difference Equations by Shugui Kang, Bao Shi

“…This paper deals with the second-order nonlinear systems of difference equations, we obtain the existence theorems of periodic solutions. …”
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Uniqueness and Existence of Solution for a System of Fractional q-Difference Equations by Wen-Xue Zhou, Hai-zhong Liu

“…Our results are based on the nonlinear alternative of Leray-Schauder type and Banach’s fixed-point theorem.…”
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Robustness of Exponential Dissipation with respect to Small Time Delay by Xunwu Yin

“…We investigate robustness of exponential dissipation for the following general nonlinear evolutionary equation with small time delay: We firstly obtain a converse Lyapunov theorem. …”
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New Periodic Solutions for a Class of Zakharov Equations by Cong Sun, Shuguan Ji

“…Through applying the Jacobian elliptic function method, we obtain the periodic solution for a series of nonlinear Zakharov equations, which contain Klein-Gordon Zakharov equations, Zakharov equations, and Zakharov-Rubenchik equations.…”
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A Liouville Type Result for Schrödinger Equation on Half-Spaces by Baiyu Liu

“…We consider a nonlinear Schrödinger equation with a singular potential on half spaces. …”
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General decay and blow up of solutions for a Kirchhoff-type equation with variable-exponents by Mohammad Alnegga, Abdelbaki Choucha, Djamel Ouchenane, Salah Boulaaras

“…A nonlinear Kirchhoff-type equation with logarithmic nonlinearity and variable exponents is studied. …”
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On the Convergence of Solutions of Certain Third-Order Differential Equations by Ercan Tunç

“…We establish sufficient conditions for the convergence of solutions of a certain third-order nonlinear differential equations. By constructing a Lyapunov function as the basic tool, some results which exist in the relevant literature are generalized.…”
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Motion Control of a 4WS4WD Path-Following Vehicle: Dynamics-Based Steering and Driving Models by Zhonghua Zhang, Caijin Yang, Weihua Zhang, Yanhai Xu, Yiqiang Peng, Maoru Chi

“…In this research, a nonlinear vehicle model of three degrees of freedom (DOFs) is used. …”
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Two-Stage Optimization Method for the Bearing Layout of Isolated Structure by Yu Dang, GenXiong Zhao, HongTu Tian, Guobao Li

“…Design of seismic isolated building is often a highly iterative and tedious process due to the nonlinear behavior of the system, a large range of design parameters, and uncertainty of ground motions. …”
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Robust Position Control of VTOL UAVs Using a Linear Quadratic Rate-Varying Integral Tracker: Design and Validation by Omer Saleem, Muhammad Kazim, Jamshed Iqbal

“…This article presents an optimal tracking controller retrofitted with a nonlinear adaptive integral compensator, specifically designed to ensure robust and accurate positioning of Vertical Take-Off and Landing (VTOL) Unmanned Aerial Vehicles (UAVs) that utilize contra-rotating motorized propellers for differential thrust generation. …”
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Pb (II) Recovery by Modified Tuffite: Adsorption, Desorption, and Kinetic Study by Beyhan Kocadagistan, Kubra Oksuz

“…In order to optimize the adsorption system and investigate the kinetic behaviour of adsorption, nonlinear isotherm and kinetic models were used as well as linearized models. …”
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Use of Artificial Neural Networks and Multiple Linear Regression Model for the Prediction of Dissolved Oxygen in Rivers: Case Study of Hydrographic Basin of River Nyando, Kenya by Yashon O. Ouma, Clinton O. Okuku, Evalyne N. Njau

“…The process of predicting water quality over a catchment area is complex due to the inherently nonlinear interactions between the water quality parameters and their temporal and spatial variability. …”
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Evaluation of Soil Quality in Arid Western Fringes of the Nile Delta for Sustainable Agriculture by Ahmed M. Saleh, Mohamed M. Elsharkawy, Mohamed A. E. AbdelRahman, Sayed M. Arafat

“…Three quality index models are included: the Additive Soil Quality Index (SQI-A), the Weighted Additive Soil Quality Index (SQI-W), and the Nemoro Soil Quality Index (SQI-N). Linear and nonlinear scoring functions are evaluated for scoring soil and terrain indicators. …”
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Using drinking data and pharmacokinetic modeling to calibrate transport model and blind deconvolution based data analysis software for transdermal alcohol biosensors by Zheng Dai, I.G. Rosen, Chuming Wang, Nancy Barnett, Susan E. Luczak

“…TAC and estimated BAC are then used to fit the forward convolution filter. Nonlinear least squares with adjoint-based gradient computation are used to fit both models. …”
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