A Digital Twin for Unconventional Reservoirs: A Multiscale Modeling and Algorithm to Investigate Complex Mechanisms by Tao Zhang, Yiteng Li, Jianchao Cai, Qingbang Meng, Shuyu Sun, Chenguang Li

“…The application potential is highly expected especially for problems with complex mechanisms and high data dimensions, because the utilized platform in the digital twin can be easily extended to cover more mechanisms and solve highly complicated problems with strong nonlinearity compared with experimental studies in physical space. …”
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A novel minimal exposure path problem in wireless sensor networks and its solution algorithm by Hao Feng, Lei Luo, Yong Wang, Miao Ye, Rongsheng Dong

“…Because of the difficulty in finding a solution due to the model’s high nonlinearity and high dimensional complexity, as well as the special characteristics of the problem, a hybrid genetic algorithm is proposed to find the solutions. …”
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Predictive Control for Interval Type-2 Fuzzy System with Event-Triggered Scheme by Siyao Wang, Xiaoming Tang, Li Deng, Hongchun Qu, Linfeng Tian, Cheng Tan

“…The IT2 T-S fuzzy model is utilized to address the nonlinearity of plant with parameter uncertainties, which can be captured by the lower and upper membership functions. …”
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Faults Detection Using Sliding Mode Observer and Its Application on Elevating Servo Systems by Lingfei Tian, Linfang Qian, Miao Li, Jiawei Fu

“…In practice, model uncertainty, nonlinearities, unknown disturbance, and output noise present enormous challenges to conduct fault detection of the system. …”
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Computational study of fluid forces over a cylinder attached with elastic beam: A finite element-based simulations by Yasir Arif, Rashid Mahmood, Mehdi Tlija, Afraz Hussain Majeed, Kamran Usman, Ehab Seif Ghith

“…This approach enables us to address the nonlinearities at each time step and apply direct, steady techniques. …”
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Abundant Coexisting Multiple Attractors’ Behaviors in Three-Dimensional Sine Chaotic System by Huagan Wu, Han Bao, Quan Xu, Mo Chen

“…This paper presents a novel and simple three-dimensional (3-D) chaotic system by introducing two sine nonlinearities into a simple 3-D linear dynamical system. …”
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Evaluation of the Response of Posttensioned Steel Frames with Energy Dissipators Using Equivalent Single-Degree-of-Freedom Systems by J. Luz Rivera, Arturo López-Barraza, Sonia E. Ruiz, Alfredo Reyes-Salazar

“…The hysteretic energy (EH) dissipated in posttensioned steel frames (PTSF) with hysteretic dampers is calculated by using equivalent single-degree-of-freedom systems (ESDOFS), where the nonlinearity of both the steel bars (beam and columns) and the connections of the structural frame is separately considered. …”
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A Structural Pounding Formulation Using Systematic Modal Truncation by Jianye Shi, Franz Bamer, Bernd Markert

“…Therefore, in this paper, a systematically controlled modal truncation strategy adapted to the seismic pounding formulation under consideration of high nonlinearity and nonsmoothness of contact problems is introduced. …”
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A Simplified Flexible Multibody Dynamics for a Main Landing Gear with Flexible Leaf Spring by Zhi-Peng Xue, Ming Li, Yan-Hui Li, Hong-Guang Jia

“…Then rigid-flexible multibody system was built and the highly nonlinearity of the mass matrix caused by the limited rotation of the deformation part was approximated using the linear theory of elastodynamics. …”
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Influence of Excitation Frequency on Raman Modes of Thin Films by A. Dixit, J. S. Thakur, V. M. Naik, R. Naik

“…We found that the energies of longitudinal optical modes (A1(LO) and 2A1(LO)) vary nonlinearly unlike the E2 mode with increasing Ga atomic fraction. …”
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Intelligent Robust Control of Roadheader Based on Disturbance Observer by Shuo Wang, Dongjie Wang, Aixiang Ma, Xihao Yan, Sihai Zhao

“…This paper proposes an intelligent robust control scheme for the cutting head trajectory of a coal mine tunneling robot, which is susceptible to unknown external disturbances, system nonlinearity, and parameter uncertainties. First, the working conditions of the cutting section were analyzed, and a mathematical model was established. …”
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A Unique Finite Element Modeling of the Periodic Wave Transformation over Sloping and Barred Beaches by Beji and Nadaoka's Extended Boussinesq Equations by Mohammad Hadi Jabbari, Parviz Ghadimi, Mesbah Sayehbani, Arsham Reisinezhad

“…In these test cases, dispersive and nonlinearity effects of the periodic waves over sloping beaches and barred beaches, which are the common coastal profiles, are investigated. …”
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Simplified Calculation Method for Seismic Active Earth Pressure of Translational Retaining Wall considering Soil Arching Effect by Zheng-zhen Wang, Rang-cheng Kou, Yong Zhou, Tian-zhong Ma

“…The results show that the seismic active earth pressure is nonlinearly distributed, and the seismic horizontal coefficient has a greater influence than other influence factors. …”
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Application of Support Vector Machines for Estimating Wall Parameters in Through-Wall Radar Imaging by Hua-Mei Zhang, Ye-Rong Zhang, Fang-Fang Wang, Jun-Lin An

“…In TWRI problem, the nonlinearity is embodied in the relationship between backscatter data and the wall parameters, which can be obtained through the SVM training process. …”
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The associations of physical activity patterns and the triglyceride-glucose index in US adults: a secondary data analysis of NHANES (2007–2018) by JinYe Zhang, YiLin Yang, HaoNan Zheng, BoWen Bai, QianKun Yang, Li Zhang, YuTong Zhao, Jing Luo, Bin Yu

“…Multivariate linear regression models were used to assess the relationship between PA patterns and the TyG index, with subgroup analyses, interaction tests and restricted cubic spline (RCS) regression analyses conducted to explore the stability and potential nonlinearity of PA-TyG index association, respectively. …”
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Machine Learning ECG Classification Using Wavelet Scattering of Feature Extraction by Heyam A. Marzog, Haider. J. Abd

“…However, with increasing complexity and nonlinearity, direct observation of ECG signals and analysis is very tough. …”
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The New Solitary Solutions to the Time-Fractional Coupled Jaulent–Miodek Equation by Guiping Shen, Jalil Manafian, Syed Maqsood Zia, Dinh Tran Ngoc Huy, Trung-Hieu Le

“…Materials such as photovoltaic-photorefractive, polymer, and organic contain spatial solitons and optical nonlinearities, which can be identified by seeking from energy-dependent Schrödinger potential. …”
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Unilateral Global Bifurcation from Intervals for Fourth-Order Problems and Its Applications by Wenguo Shen, Tao He

“…We establish a unilateral global bifurcation result from interval for a class of fourth-order problems with nondifferentiable nonlinearity. By applying the above result, we firstly establish the spectrum for a class of half-linear fourth-order eigenvalue problems. …”
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Numerical Simulation of Flooding Process on Downstream Structure by Three-dimensional Dam-break Wave by YU Ruixing, LIN Qin, HE Shiming, ZHENG Yipeng, ZHENG Kaiyuan

“…It brings damages to the structures with a strong nonlinearity and complex mechanism. Based on an in-house three-dimensional parallel model, the dynamic response process of the fluid-structure interaction caused by water disasters is investigated. …”
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Conjugate Natural Convection: A Study of Optimum Fluid Flow and Heat Transfer in Eccentric Annular Channels by Ahmad Jamal, Esmail M. A. Mokheimer

“…Results reveal that the optimum conductivity ratio and cylinder walls thicknesses increase nonlinearly with eccentricity and radius ratio. Such results can be very useful in effectively designing the heat transfer equipment for optimum performance.…”
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