The nonlinear association between body roundness index and infertility in married women by Yong Fang, Danfeng Ren, Jinliang Pan, Qiuyuan Xu

“…Smooth curve fitting analysis revealed a positive, nonlinear relationship, with an inflection point observed at a BRI value of 7.95. …”
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Numerical Built-In Method for the Nonlinear JRC/JCS Model in Rock Joint by Qunyi Liu, Wanli Xing, Ying Li

“…The joint surface is widely distributed in the rock, thus leading to the nonlinear characteristics of rock mass strength and limiting the effectiveness of the linear model in reflecting characteristics. …”
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A Multiplex Approach Against Disturbance Propagation in Nonlinear Networks With Delays by Shihao Xie, Giovanni Russo

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Nonequilibrium transport and the fluctuation theorem in the thermodynamic behaviors of nonlinear photonic systems by Yang Liu, Jincheng Lu, Zhongfei Xiong, Fan O. Wu, Demetrios Christodoulides, Yuntian Chen, Jian-Hua Jiang

“…Nonlinear multimode optical systems have attracted substantial attention due to their rich physical properties. …”
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Dynamic Analysis of Nonlinear Impulsive Neutral Nonautonomous Differential Equations with Delays by Jinxian Li

“…A class of neural networks described by nonlinear impulsive neutral nonautonomous differential equations with delays is considered. …”
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A Numerical Algorithm for a Kirchhoff-Type Nonlinear Static Beam by Jemal Peradze

“…An approximate solution is found using the Galerkin method and the Jacobi nonlinear iteration process. A theorem on the algorithm error is proved.…”
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Cluster Synchronization of Nonlinearly Coupled Complex Networks via Pinning Control by Jianwen Feng, Jingyi Wang, Chen Xu, Francis Austin

“…The coupling between the vertices of the network is nonlinear, and sufficient conditions are derived analytically for the attainment of cluster synchronization. …”
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Existence of Solution for Nonlinear Elliptic Equations with Unbounded Coefficients and 𝐿1 Data by Hicham Redwane

“…An existence result of a renormalized solution for a class of nonlinear elliptic equations is established. The diffusion functions 𝑎(𝑥,𝑢,∇𝑢) may not be in (𝐿1loc(Ω))𝑁 for a finite value of the unknown and the data belong to 𝐿1(Ω).…”
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Novel Stability Criteria of Nonlinear Uncertain Systems with Time-Varying Delay by Yali Dong, Shengwei Mei, Xueli Wang

“…The problem of robust exponential stabilization for dynamical nonlinear systems with uncertainties and time-varying delay is considered in the paper. …”
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Pseudo-State Sliding Mode Control of Fractional SISO Nonlinear Systems by Bao Shi, Jian Yuan, Chao Dong

“…This paper deals with the problem of pseudo-state sliding mode control of fractional SISO nonlinear systems with model inaccuracies. Firstly, a stable fractional sliding mode surface is constructed based on the Routh-Hurwitz conditions for fractional differential equations. …”
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Periodic Solutions of a System of Nonlinear Difference Equations with Periodic Coefficients by Durhasan Turgut Tollu

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Analysis of Pine Wilt Disease Model with Nonlinear Incidence and Horizontal Transmission by Muhammad Ozair

“…The deterministic pine wilt model with vital dynamics to determine the equilibria and their stability by considering nonlinear incidence rates with horizontal transmission is analyzed. …”
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A surface model of nonlinear, non-steady-state phloem transport by Youcef Mammeri, Damien Sellier

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Sampled-Data Nonlinear Control of ECP-730 Magnetic Levitation System by Malik Maaz Tahir, Obaid Hafiz Muhammad

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Ψ-Stability of Nonlinear Volterra Integro-Differential Systems with Time Delay by Lianzhong Li, Maoan Han, Xin Xue, Yuanyuan Liu

“…We give some sufficient conditions for Ψ-uniform stability of the trivial solutions of a nonlinear differential system and of nonlinear Volterra integro-differential systems with time delay.…”
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Nonlinear Dynamic Constitutive Model of Frozen Sandstone Based on Weibull Distribution by Lei Wang, Hongming Su, Shiguan Chen, Yue Qin

“…According to the evident segmentation characteristics of the obtained stress-strain curve, a viscoelastic dynamic constitutive model considering the strain rate effect and temperature effect is developed; this model combines a nonlinear (or linear) body and a Maxwell body in parallel with a damage body. …”
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NONLINEAR FREE VIBRATION CHARACTERISTICS OF PRINTING PAPER WEB WITH VARIABLE DENSITY by SHAO MingYue, WU JiMei, WANG Yan, YING ShuDi, WU QiuMin

Subjects: “…Nonlinear vibration…”
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Nonlinear Numerical Simulation for Oscillating Pressure in Cavity and Passive Control Research by Binqi Chen, Yiding Wang

“…Prediction of oscillating pressure is a key technology for cavity research. Nonlinear Acoustic Solver (NLAS) is applied to analyze aeroacoustics recently. …”
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Some Existence Results for a System of Nonlinear Fractional Differential Equations by Eskandar Ameer, Hassen Aydi, Hüseyin Işık, Muhammad Nazam, Vahid Parvaneh, Muhammad Arshad

“…This paper presents some common fixed point theorems and an application to resolve a system of nonlinear fractional differential equations. Some examples and consequences are also given.…”
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Nonlinear Forced Response of Electromechanical Integrated Toroidal Drive to Coupled Excitation by Lizhong Xu, Fen Wang

“…Results show that the nonlinear forced responses of the drive system to the coupled excitations change periodically and unsteadily; the time period of the nonlinear forced responses depends on the frequencies of the electric excitation, the mesh parameter excitation, and the nonlinear natural frequencies of the drive system; in order to improve the dynamics performance of the drive system, the frequencies of the electric excitations should not be taken as integral multiple of the mesh parameter exciting frequency.…”
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