Application of Harris Hawks Optimization Algorithm in Optimization of Generalized Nonlinear Muskingum Parameters ——A Case Study of the Luohe River by CHEN Haitao, ZHAO Zhijie

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Study on the nonlinear transition relationship between water resources consumption and economic development in Heilongjiang province based on system dynamics by Meiyun Tao, Youzhu Zhao, Qiuxiang Jiang, Zilong Wang, Yunxing Wu

“…Both the industrial water footprint (WFI) and the domestic water footprint (WFD) showed one nonlinear change in 2018. Two nonlinear changes in ecological water footprint (WFE) in 2021 and 2033. (2) The WEF in Heilongjiang Province fluctuated, reaching a peak of 8.32 × 107 hm2 in 2007 and a low of 4.31 × 107 hm2 in 2019. …”
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An asymptotic expansion of the solution of a semi-linear partial differential equation implied by a nonlinear Feynman–Kac formula by Kaori Okuma

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A Novel Approach to a Time-Dependent-Coefficient WBK System: Doubly Periodic Waves and Singular Nonlinear Dynamics by Bo Xu, Sheng Zhang

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Optimal Tuning of Decentralized PI Controller of Nonlinear Multivariable Process Using Archival Based Multiobjective Particle Swarm Optimization by R. Kotteeswaran, L. Sivakumar

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Three-Dimensional Nonlinear Seismic Response of Immersed Tunnel in Horizontally Layered Site under Obliquely Incident SV Waves by Xiaojie Zhou, Qinghua Liang, Yueyu Zhang, Zhongxian Liu, Ying He

“…The proposed model was then applied to investigate the nonlinear seismic response of an immersed tunnel in the Haihe River subjected to seismic waves of oblique incidence. …”
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Analytical Solution of Nonlinear Dynamics of a Self-Igniting Reaction-Diffusion System Using Modified Adomian Decomposition Method by Felicia Shirly Peace, Narmatha Sathiyaseelan, Lakshmanan Rajendran

“…An approximate analytical method (modified Adomian decomposition method) is used to solve nonlinear differential equations under steady-state condition. …”
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Bolt loosening detection in a jointed beam using empirical mode decomposition–based nonlinear system identification method by Chao Xu, Chen-Chen Huang, Wei-Dong Zhu

“…In this work, a state-of-art nonlinear system identification method based on empirical mode decomposition is utilized and extended to detect bolt loosening in a jointed beam. …”
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Long-Term Exploitation of a Flexible Foundation in Conditions of Nonlinear Rheological Deformation under Force and Non-Force Influences by M. V. Berlinov

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Investigating the Effect of Economic Risk Components on the Development of Sukuk Market in Iran (Nonlinear Autoregressive Distributed Lag Model Approach) by Bahman Khanalizadeh, Ashkan Rahimzadeh, Mohammad Dalmanpour, Majid Afsharirad

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Nonlinear Finite-Horizon Regulation and Tracking for Systems with Incomplete State Information Using Differential State Dependent Riccati Equation by Ahmed Khamis, D. Subbaram Naidu, Ahmed M. Kamel

“…This paper presents an efficient online technique used for finite-horizon, nonlinear, stochastic, regulator, and tracking problems. …”
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An Efficient Hybrid Numerical Scheme for Nonlinear Multiterm Caputo Time and Riesz Space Fractional-Order Diffusion Equations with Delay by A. K. Omran, M. A. Zaky, A. S. Hendy, V. G. Pimenov

“…In this paper, we construct and analyze a linearized finite difference/Galerkin–Legendre spectral scheme for the nonlinear multiterm Caputo time fractional-order reaction-diffusion equation with time delay and Riesz space fractional derivatives. …”
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Decision-Making on the Solution of a Stochastic Nonlinear Dynamical System of Kannan-Type in New Sequence Space of Soft Functions by Meshayil M. Alsolmi, Awad A. Bakery

“…Additionally, some successful applications to the existence of solutions of nonlinear difference equations of soft functions are introduced.…”
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Function Projective Synchronization of Two Complex Networks with Unknown Sector Nonlinear Input and Multiple Time-Varying Delay Couplings by Na Fang, Da Wei, Nan-nan Yin, Dan-ying Xu, Hua Liu, Jie Fang

“…Different from some existing studies on nonlinear system with sector nonlinear input, this paper studies the synchronization of two complex dynamic networks when the boundary of sector nonlinear input is unknown. …”
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An Analytical Approach to Study the Blood Flow over a Nonlinear Tapering Stenosed Artery in Flow of Carreau Fluid Model by Riaz Ahmad, Asma Farooqi, Rashada Farooqi, Nawaf N. Hamadneh, Md Fayz-Al-Asad, Ilyas Khan, Muhammad Sajid, Ghulam Bary, Muhammad Farooq Saleem Khan

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LMI-Based Robust Stabilization of a Class of Input-Constrained Uncertain Nonlinear Systems with Application to a Helicopter Model by Hassène Gritli

“…The nonlinear dynamics is subject to norm-bounded parametric uncertainties and disturbances. …”
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On Existence of Multiplicity of Weak Solutions for a New Class of Nonlinear Fractional Boundary Value Systems via Variational Approach by Fares Kamache, Salah Mahmoud Boulaaras, Rafik Guefaifia, Nguyen Thanh Chung, Bahri Belkacem Cherif, Mohamed Abdalla

“…This paper deals with the existence of solutions for a new class of nonlinear fractional boundary value systems involving the left and right Riemann-Liouville fractional derivatives. …”
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Hierarchical Newton Iterative Parameter Estimation of a Class of Input Nonlinear Systems Based on the Key Term Separation Principle by Cheng Wang, Kaicheng Li, Shuai Su

“…This paper investigates the identification problem for a class of input nonlinear systems whose disturbance is in the form of the moving average model. …”
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Nonlinear Dynamic Behaviour Analysis of a Clutch System with Uncertainties Using Polynomial Chaos and the Constrained Harmonic Balance Method by M.-H. Trinh, S. Berger, E. Aubry

“…The study of the nonlinear dynamic behaviour of friction systems in general and of clutch systems in particular remains an open problem. …”
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A Low-Sidelobe-Level Variable Inclination Continuous Transverse Stub Antenna with a Nonlinear Slow-Wave Structure by Kexin Wang, Xue Lei, Jun Gao, Tianpeng Li, Siyu Tian, Mingyang Zhao

“…The radiation plate comprises two groups of stubs with different radiation ratios. Combined with the nonlinear slow-wave structure attached to the feeding plate, the radiation ratio of the unit can be adjusted. …”
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