Effects of Cognitive Behavior Therapy on Heart Rate Variability among Medical Students at a Teaching Institution in Jaipur, India by Neha Saboo, Sudhanshu Kacker, Jitender Sorout

“…Linear and nonlinear components of HRV were positively correlated (P < 0.01). …”
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Scanless laser waveform measurement in the near-infrared by Tran-Chau Truong, Yangyang Liu, Dipendra Khatri, Yuxuan Zhang, Bonggu Shim, Michael Chini

“…Recently, sub-cycle gating based on nonlinear excitation in active pixel sensors has allowed the first single-shot measurements of mid-infrared optical fields. …”
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Analysis of the Response of Urban Water Consumption to Climatic Variables: Case Study of Khorramabad City in Iran by Omid Hamidi, Hamed Abbasi, Hamid Mirhashemi

“…The spline method also revealed that, by eliminating the effect of air temperature, the nonlinear reaction of water consumption to changes in pressure and relative humidity was increasing, and by eliminating the effects of the relative humidity and air pressure, the nonlinear reaction of water consumption to the air temperature was intensified. …”
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A Comparison Study on Co- and Counterrotating Dual-Rotor System with Squeeze Film Dampers and Intermediate Bearing by Fei Wang, Gui-Huo Luo, Shu Yan, Hai-Tao Cui

“…Nonlinear dynamic model of a coaxial rotor system was established with a method combining the finite element method and the fixed interface modal synthesis method. …”
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The initial boundary value problem of a mixed-typed hemivariational inequality by Guo Xingming

“…A mixed-typed differential inclusion with a weakly continuous nonlinear term and a nonmonotone discontinuous nonlinear multi-valued term is studied, and the existence and decay of solutions are established.…”
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Validation of Infinite Impulse Response Multilayer Perceptron for Modelling Nuclear Dynamics by F. Cadini, E. Zio, N. Pedroni

“…The comparison is made with respect to the nonlinear dynamics of a nuclear reactor as investigated by IIR-MLP in a previous paper. …”
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A Semiparametric Approach for Modeling Partially Linear Autoregressive Model with Skew Normal Innovations by Leila Sakhabakhsh, Rahman Farnoosh, Afshin Fallah, Mohammadhassan Behzadi

“…The nonlinear autoregressive models under normal innovations are commonly used for nonlinear time series analysis in various fields. …”
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Limiting Behavior of Travelling Waves for the Modified Degasperis-Procesi Equation by Jiuli Yin, Liuwei Zhao, Shanyu Ding

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Research on the Simulation Method for Equivalent Stiffness of Bolted Connection Thin Plate Structures by Zhe Chen, Qi-jun Zhao, Guo-chen Zhou

“…At the same time, by establishing the nonlinear dynamic model of bolted structure, the influence of different bolt preloads and excitation forces on the dynamic characteristics of bolted structure is studied.…”
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Existence Theory for q-Antiperiodic Boundary Value Problems of Sequential q-Fractional Integrodifferential Equations by Ravi P. Agarwal, Bashir Ahmad, Ahmed Alsaedi, Hana Al-Hutami

“…Our results rely on the standard tools of fixed-point theory such as Krasnoselskii's fixed-point theorem, Leray-Schauder nonlinear alternative, and Banach's contraction principle. …”
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Effect of Gear Backlash Function on the Dynamics Characteristic of Helical Gear by Wang Xin, Kang Boqiang

“…A three- degree- of- freedom shaft- torsion coupling nonlinear dynamics model of a single-stage helical cylindrical gear transmission system is established,which included the nonlinear factors such as gear backlash,time- varying stiffness,transmission error and so on. …”
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Output Feedback Control for Asymptotic Stabilization of Spacecraft with Input Saturation by Chutiphon Pukdeboon

“…Asymptotic stability is proven by Lyapunov stability theory. Moreover, a new nonlinear disturbance observer is designed to compensate for external disturbances. …”
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Global well-posedness of 2D incompressible Navier–Stokes–Darcy flow in a type of generalized time-dependent porosity media by Linlin Tan, Bianru Cheng

“…We establish the existence of global strong solutions for the system in both linear and nonlinear cases where porosity depends on pressure. …”
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An Efficient Method for Systems of Variable Coefficient Coupled Burgers’ Equation with Time-Fractional Derivative by Hossein Aminikhah, Nasrin Malekzadeh

“…The concept of new algorithm is introduced briefly, and NHPM is examined for two systems of nonlinear Burgers' equation. In this approach, the solution is considered as a power series expansion that converges rapidly to the nonlinear problem. …”
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An Efficient Approach for Fractional Harry Dym Equation by Using Sumudu Transform by Devendra Kumar, Jagdev Singh, A. Kılıçman

“…The nonlinear terms can be easily handled by the use of He’s polynomials. …”
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The Extended Trial Equation Method for Some Time Fractional Differential Equations by Yusuf Pandir, Yusuf Gurefe, Emine Misirli

“…Nonlinear fractional partial differential equations have been solved with the help of the extended trial equation method. …”
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Postural stability measures as diagnostic tools for chronic ankle instability: a comprehensive assessment by Makan Piri, Kazem Malmir, Khadijeh Otadi, Azadeh Shadmehr

“…This study evaluates the diagnostic utility of various linear and nonlinear postural stability measures in distinguishing individuals with CAI from healthy controls. …”
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Control of Magnetic Manipulator Using Reinforcement Learning Based on Incrementally Adapted Local Linear Models by Martin Brablc, Jan Žegklitz, Robert Grepl, Robert Babuška

“…Reinforcement learning (RL) agents can learn to control a nonlinear system without using a model of the system. …”
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Research on Fault Feature Extraction Method Based on NOFRFs and Its Application in Rotor Faults by Yang Liu, Yulai Zhao, Jintao Li, Fangquan Xi, Shuanghe Yu, Ye Zhang

“…The occurrence of faults is often accompanied by the generation of nonlinear phenomena. However, it is difficult to find out because the nonlinear characteristics are not obvious at the beginning of the fault. …”
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Mechanical Constitutive and Seepage Theoretical Model of Water Storage Media Based on Fractional Derivative by Lujun Wang, Yang Wu, Xiaoqian Zhu, Peng Li, Zhiguo Cao, Huan Yang

“…The mechanical behavior of the broken rock mass is described by Hooke’s law of linear elasticity, and the deformation characteristics of the space among the rock masses are represented by a nonlinear elastic constitutive model. The nonlinear stress-strain constitutive model of the water storage media is established by combining Hooke’s law and the fractional derivative stress-strain model. …”
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