Sealing Form and Failure Mechanism of Deep In Situ Rock Core Pressure-Maintaining Controller by Nianhan Wu, Heping Xie, Ling Chen, Mingzhong Gao, Cong Li

“…The mechanical properties of deep rocks change nonlinearly in an in situ pressure environment, so standard cores cannot be used as real samples for deep rock mechanics research. …”
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Damage Concentration Effect of Multistory Buckling-Restrained Braced Frames by Hanqin Wang, Yulong Feng, Jing Wu, Qing Jiang, Xun Chong

“…Due to the low postyield stiffness of buckling-restrained braces (BRBs), multistory buckling-restrained braced frames (BRBFs) subjected to earthquakes are prone to lateral deformations and damage concentrations at certain stories, which is deemed a damage concentration effect (DCE). A series of nonlinear pushover analyses and response history analyses are conducted to investigate the key factors affecting the DCE of BRBFs. …”
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Ship Radiated Noise Recognition Using Resonance-Based Sparse Signal Decomposition by Jiaquan Yan, Haixin Sun, En Cheng, Xiaoyan Kuai, Xiaoliang Zhang

“…First, the observed signals are decomposed into high resonance component, low resonance component, and residual component by RSSD, which is a nonlinear signal analysis method based not on frequency or scale but on resonance. …”
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Model-enhanced spatial-temporal attention networks for traffic density prediction by Qi Guo, Qi Tan, Yue Peng, Long Xiao, Miao Liu, Benyun Shi

“…However, accurately predicting real-time traffic density has been a significant challenge in Intelligent Transportation Systems (ITS) due to the nonlinear and spatial-temporal dynamic complexity of traffic density. …”
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A discrete two time scales model of a size-structured population of parasitized trees by Rafael Bravo de la Parra, Ezio Venturino

“…The model was studied based on an associated nonlinear matrix model, in which the presence of the parasites was only reflected in the value of its parameters. …”
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Experiment and Analysis of Cord Stress on High-Speed Radial Tire Standing Waves by Peng-Fei Sun, Hong-Wu Huang, Shui-Ting Zhou, Yi-Jui Chiu, Meng Du, Dong-Hao Zhao

“…A finite element model for a 195/65R15 radial tire is established with the nonlinear analysis software ABAQUS, based on the tire structure and cord parameters. …”
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Macro-Micro Response Characteristics of Surrounding Rock and Overlying Strata towards the Transition from Open-Pit to Underground Mining by Xiaoshuang Li, Shun Yang, Yunmin Wang, Wen Nie, Zhifang Liu

“…The mining deformation of the surrounding rock underground, and of the overlying strata, is shown to develop in three stages, namely: (1) small and local deformation, (2) continuous linear increase, and (3) the violent nonlinear collapse of the entire system. The internal distribution of stress in the surrounding rock and adjacent overlying strata of the inclined mined-out area is complicated. …”
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Analysis of Chaotic Features in Dry Gas Seal Friction State Using Acoustic Emission by Shuai Zhang, Xuexing Ding, Jinlin Chen, Shipeng Wang, Lanxia Zhang

“…In this study, a chaos theory-based characterization method is proposed to address the nonlinear behavior of acoustic emission (AE) signals during the startup and shutdown phases of dry gas seals. …”
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Sparse Deep Nonnegative Matrix Factorization by Zhenxing Guo, Shihua Zhang

“…To improve the performance of dealing with linearly inseparable data, we also considered to incorporate popular nonlinear functions into these frameworks and explored their performance. …”
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Numerical Simulation on Mesoscale Mechanism of Seepage in Coal Fractures by Fluid-Sloid Coupling Method by Kai Si, Ruidong Peng, Leilei Zhao, Yan Zhao, Yaheng Zhu, Zhendong Cui, Jianyong Zhang

“…The numerical results show that nonlinear Darcy seepage occurs during low velocity zone. …”
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Autonomous decision-making method for ship maneuvering in complex waters of estuarine multi-class ships routeing system by HE Yixiong, ZHANG Huwei, LIU Jiaorun, ZHAO Xingya, XIANG Shouyuan, WANG Bing

“…The collision avoidance mechanism under the constraints of ship behavioural characteristics in such waters was explored by combining the control and process prediction methods with nonlinear ship manoeuvring characteristics. Then, a feasible heading speed finding method was established, and a ship manoeuvring autonomy decision-making method under the constraints of multifactors that can dynamically adapt to the system's residual error and the target ship's random motion was proposed. …”
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Online Structural Health Monitoring and Parameter Estimation for Vibrating Active Cantilever Beams Using Low-Priced Microcontrollers by Gergely Takács, Ján Vachálek, Boris Rohal’-Ilkiv

“…The actuator input and the measured position are used in an augmented nonlinear model to observe the dynamic states and parameters of the beam by the continuous-discrete extended Kalman filter (EKF). …”
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A chaotic bursting-spiking transition in a pancreatic beta-cells system: observation of an interior glucose-induced crisis by Jorge Duarte, Cristina Januário, Nuno Martins

“…Nonlinear systems are commonly able to display abrupt qualitative changes (or transitions) in the dynamics. …”
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Quantitative Evaluation of Display Contrast of Gd-EOB-DTPA-Enhanced Magnetic Resonance Images: Effects of the Flip Angle and Grayscale Gamma Value by Yusuke Inoue, Hirofumi Hata, Ai Nakajima, Keiji Matsunaga, Yusuke Ohzeki, Tetsuya Hashimoto, Hiroki Haradome

“…Display contrast can be changed nonlinearly by manipulating the gamma value of the grayscale. …”
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Soliton solutions of the (2 + 1)-dimensional Jaulent-Miodek evolution equation via effective analytical techniques by Muhammad Zubair Raza, Muhammad Abdaal Bin Iqbal, Aziz Khan, D. K. Almutairi, Thabet Abdeljawad

“…The potential applications of these solutions span diverse domains, such as nonlinear dynamics, fiber optics, ocean engineering, software engineering, electrical engineering, and other areas of physical science. …”
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Robust Next-Day Scheduling of PV Generation Sources Supplying a Standalone DC Microgrid via a Semi-Definite Programming Model by Walter Gil-Gonzalez, Oscar Danilo Montoya, Luis F. Grisales-Norena, Fabio Andrade

“…The PV source operation model is formulated as a nonlinear programming (NLP) problem with the objective of minimizing daily energy losses and reducing CO2 emissions compared to diesel generators. …”
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Rotor-Bearing System Stability Performance Comparing Hybrid versus Conventional Bearings by Julio Gomez-Mancilla, Valeri Nosov, Gerardo Silva-Navarro

“…Also this bearing displays nonlinear feeding pressure behavior, and it is capable of reducing the synchronous vibration amplitude in most speed ranges, except around the critical speed; moreover, for certain Jeffcott configurations the amplitude reduction can be substantial.…”
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Experimental Analysis of Fuzzy Gain-Scheduled PID Controller With a Feedforward Compensator for an Ultra-Precise Piezoactuated Micropositioning Stage by Hussain Kahil, Irfan Ahmad, Yasser Bin Salamah

“…However, the inherent nonlinear hysteresis characteristics of these actuators, if not compensated for, can significantly compromise the precision of the positioning. …”
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Analysis and prediction of urban agglomeration ecological footprint based on improved three-dimensional ecological footprint and shared socioeconomic pathways by Ruirui Jiang, Liangjun Fei, Shouxuan Kang

“…This study analyzes the spatial–temporal dynamics of ecological security, sustainability, and driving factors in Shaanxi’s Guanzhong urban agglomeration. Using an extended nonlinear STIRPAT model, this study projects population and urbanization rates under Shared Socioeconomic Pathways (SSP1-SSP5) scenarios. …”
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Rationale and design of a prospective study evaluating population pharmacokinetics and pharmacodynamics of rivaroxaban in Chinese patients with non-valvular atrial fibrillation by Ming-Ming Yan, Xiao-Qin Liu, Yu-Fei Zhang, Hong-Yan Ding, Ming-Kang Zhong, Chun-Lai Ma

“…Follow-up will be conducted following 3 and 6 months after enrolment to collect information about the safety and efficacy outcomes. A nonlinear mixed-effects modelling strategy will be used to develop a population PK-PD model of rivaroxaban.Ethics and dissemination The study has been approved by the Ethics Committee of Huashan Hospital, Fudan University (KY2020-016). …”
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