Nonlinear Model of Vibrating Screen to Determine Permissible Spring Deterioration for Proper Separation by Cristian G. Rodriguez, Manuel A. Moncada, Emilio E. Dufeu, Mario I. Razeto

“…In this article, a two-dimensional three-degree-of-freedom nonlinear model that considers significant angular motion and damping is developed. …”
Get full text

Introduction to Higher-Order Iterative Methods for Finding Multiple Roots of Nonlinear Equations by Rajinder Thukral

“…We introduce two higher-order iterative methods for finding multiple zeros of nonlinear equations. Per iteration the new methods require three evaluations of function and one of its first derivatives. …”
Get full text

Linear and Nonlinear Dynamic Analyses of Sandwich Panels with Face Sheet-to-Core Debonding by Vyacheslav N. Burlayenko, Tomasz Sadowski

“…The emphasis is directed to the procedures used to elaborate linear and nonlinear models and to predict dynamic response of the sandwich panels. …”
Get full text

Analysis of the Diffusion SIR Epidemic Model With Networked Delay and Nonlinear Incidence Rate by Xiangyu Tang, Yujuan Chen

“…This paper is concerned with the qualitative analysis of a diffusion SIR epidemic model with networked delay and nonlinear incidence rate. First, we prove the existence and uniqueness of the model by using the method of upper and lower solutions. …”
Get full text

Existence and Multiplicity of Solutions for Discrete Nonlinear Two-Point Boundary Value Problems by Jianmin Guo, Caixia Guo

“…By using Morse theory, the critical point theory, and the character of 𝐾1/2, we consider the existence and multiplicity results of solutions to the following discrete nonlinear two-point boundary value problem −Δ2𝑥(𝑘−1)=𝑓(𝑘,𝑥(𝑘)),𝑘∈ℤ(1,𝑇) subject to 𝑥(0)=0=Δ𝑥(𝑇), where 𝑇 is a positive integer, ℤ(1,𝑇)={1,2,…,𝑇},Δ is the forward difference operator defined by Δ𝑥(𝑘)=𝑥(𝑘+1)−𝑥(𝑘), and 𝑓∶ℤ(1,𝑇)×ℝ→ℝ is continuous. …”
Get full text

Nonlinear responses of ecosystem carbon fluxes to precipitation change in a semiarid grassland by Hua Chai, Hua Chai, Jianying Ma, Jinwei Zhang, Junqin Li, Bo Meng, Chengliang Wang, Duofeng Pan, Jie Li, Wei Sun, Xuhui Zhou

Subjects: Get full text

An observer for a nonlinear age-structured model of a harvested fish population by Diène Ngom, A. Iggidir, Aboudramane Guiro, Abderrahim Ouahbi

“…We consider an age-structured model of a harvested population.This model is a discrete-time system that includes a nonlinear stock-recruitmentrelationship. Our purpose is to estimate the stock state. …”
Get full text

Error Estimates on Hybridizable Discontinuous Galerkin Methods for Parabolic Equations with Nonlinear Coefficients by Minam Moon, Hyung Kyu Jun, Tay Suh

“…In a practical setting, PDE comes with nonlinear coefficients. Hence, it is inevitable to consider how to obtain an approximate solution for PDE with nonlinear coefficients. …”
Get full text

Observer-Based Bounded Control for Discrete Time-Delay Uncertain Nonlinear Systems by Bei Wu, Mou Chen, Xiaoming Chen

“…A bounded controller is proposed for a class of uncertain discrete time-delay systems with nonlinearity and disturbance based on state estimator and disturbance observer technique. …”
Get full text

Extended properties of nonlinear power system models that are symmetrically configured in the narrow sense by Elior Segev, Vladimir Zhuk, Elinor Ginzburg-Ganz, Juri Belikov, Yoash Levron

Get full text

NONLINEAR PRIMARY RESONANCE OF A CIRCULAR SANDWICH PLATE UNDER STATIC LOAD by GUO Wei, DU GuoJun, HU YuDa

“…Based on Reissner’s sandwich plate theory,the nonlinear dynamic equations of the circular sandwich plate under static load are established by using the Hamilton principle. …”
Get full text

About the Stability and Positivity of a Class of Discrete Nonlinear Systems of Difference Equations by M. De la Sen

“…This paper investigates stability conditions and positivity of the solutions of a coupled set of nonlinear difference equations under very generic conditions of the nonlinear real functions which are assumed to be bounded from below and nondecreasing. …”
Get full text

Monotone Iterative Solutions for Nonlinear Boundary Value Problems of Fractional Differential Equation by Chaozhu Hu, Bin Liu, Songfa Xie

“…By means of the method of quasi-lower and quasi-upper solutions and monotone iterative technique, we consider the nonlinear boundary value problems with Caputo fractional derivative and introduce two well-defined monotone sequences of quasi-lower and quasi-upper solutions which converge uniformly to the actual solution of the problem, and then the existence results of the solution for the problems are established. …”
Get full text

Inelastic Interaction and Blowup New Solutions of Nonlinear and Dispersive Long Gravity Waves by Haiyong Qin, Mostafa M. A. Khater, Raghda A. M. Attia

“…Moreover, it is used to study the interaction between nonlinear and dispersive long gravity waves. A new fractional operator is used to convert the fractional form of the BK system to a nonlinear ordinary differential system with an integer order. …”
Get full text

Sequential harmonic spin–orbit angular momentum generation in nonlinear optical crystals by Yutao Tang, Zixian Hu, Junhong Deng, Kingfai Li, Guixin Li

Subjects: Get full text

Fault Estimation Method for Nonlinear Systems With Perturbations Based on Augmented Fault Observer by Yanxiu Sun, Ying Du, Yuping Zhang

“…This paper proposes a robust fault estimation method for nonlinear systems with both actuator and sensor faults. …”
Get full text

UNCERTAINTY EVALUATION METHOD FOR NONLINEAR SYSTEM TEST BASED ON POLYNOMIAL CHAOS EXPANSION by YU HuiJie, ZHU YueChen, WANG HaiHua, WANG ShenLong, XU ShiPeng, DING XiaoHong

Subjects: Get full text

Nonlinear Buckling Analysis and Optimization Design of the Y-Type Composite Insulator String by Hua Bao, Lingzhi Xia, Shengcong Chai, Yang Cheng, Songyuan Cao, Zhiwen Lan

“…Using numerical simulation software, the nonlinear mechanical analysis of Y-type insulator strings is conducted, and under the action of different wind speeds, the windage yaw angle and unloading angle of the Y-type insulator string are obtained. …”
Get full text

Multilayer Perceptron for Robust Nonlinear Interval Regression Analysis Using Genetic Algorithms by Yi-Chung Hu

“…On the basis of fuzzy regression, computational models in intelligence such as neural networks have the capability to be applied to nonlinear interval regression analysis for dealing with uncertain and imprecise data. …”
Get full text

Least-Squares Parameter Estimation Algorithm for a Class of Input Nonlinear Systems by Weili Xiong, Wei Fan, Rui Ding

“…This paper studies least-squares parameter estimation algorithms for input nonlinear systems, including the input nonlinear controlled autoregressive (IN-CAR) model and the input nonlinear controlled autoregressive autoregressive moving average (IN-CARARMA) model. …”
Get full text