Exploring optimal control strategies in a nonlinear fractional bi-susceptible model for Covid-19 dynamics using Atangana-Baleanu derivative by Azhar Iqbal Kashif Butt, Waheed Ahmad, Hafiz Ghulam Rabbani, Muhammad Rafiq, Shehbaz Ahmad, Naeed Ahmad, Saira Malik

“…Abstract In this article, a nonlinear fractional bi-susceptible $$S_{1}S_{2}V_{1}V_{2}IHR$$ model is developed to mathematically study the deadly Coronavirus disease (Covid-19), employing the Atangana-Baleanu derivative in Caputo sense (ABC). …”
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Nonlinear mixed‐effects modeling as a method for causal inference to predict exposures under desired within‐subject dose titration schemes by Christian Bartels, Martina Scauda, Neva Coello, Thomas Dumortier, Björn Bornkamp, Giusi Moffa

“…In pharmacometrics, mixed‐effects models are routinely used to analyze longitudinal clinical trial data; however, they are rarely discussed as a method for causal inference. Here, we evaluate nonlinear mixed‐effects modeling and simulation (NLME M&S) in the context of causal inference as a standardization method for longitudinal data in the presence of confounders. …”
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False Data Injection Attack Detection and Mitigation Using Nonlinear Autoregressive Exogenous Input-Based Observers in Distributed Control for DC Microgrid by Md Abu Taher, Milad Behnamfar, Arif I. Sarwat, Mohd Tariq

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Performance evaluation of an optimized simplified nonlinear active disturbance rejection controller for rotor current control of DFIG-based wind energy system by Ahmed Sobhy, Medhat Hegazy Elfar, Ahmed Refaat, Mahmoud Fawzi

“…Due to the inherent nonlinear dynamics of DFIG, which increase the system's complexity, conventional proportional-integral (PI) controllers often face limitations in maintaining optimal performance. …”
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Nonlinearity-Induced Spur Analysis in Fractional-<italic>N</italic> Synthesizers With &#x0394;&#x03A3; Quantization Cancellation by Yizhe Hu, Weichen Tao, Robert Bogdan Staszewski

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Multiple Positive Solutions to Multipoint Boundary Value Problem for a System of Second-Order Nonlinear Semipositone Differential Equations on Time Scales by Gang Wu, Longsuo Li, Xinrong Cong, Xiufeng Miao

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Abundant Bounded and Unbounded Solitary, Periodic, Rogue-Type Wave Solutions and Analysis of Parametric Effect on the Solutions to Nonlinear Klein–Gordon Model by Mohammad Mobarak Hossain, Alrazi Abdeljabbar, Harun-Or Roshid, Md. Mamunur Roshid, Abu Naim Sheikh

“…This paper exploits the modified simple equation and dynamical system schemes to integrate the Klein–Gordon (KG) model amid quadratic nonlinearity arising in nonlinear optics, quantum theories, and solid state physics. …”
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Retracted: Dynamic Response of a Semiactive Suspension System with Hysteretic Nonlinear Energy Sink Based on Random Excitation by means of Computer Simulation by null Complexity

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Driving energy transition in BRI nations: The role of education, globalization, trade liberalization, and financial deepening – A comprehensive linear and nonlinear approach by Md Qamaruzzaman

“…Using panel data from 46 BRI countries spanning 2000–2021, we employ advanced econometric techniques, including the Continuously Updated Fully Modified (CUP-FM) and Continuously Updated Bias-Corrected (CUP-BC) models, to assess both linear and nonlinear effects. Results show that education significantly promotes renewable energy by fostering skills and environmental awareness. …”
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Optimal Guaranteed Cost Control of a Class of Discrete-Time Nonlinear Systems with Markovian Switching and Mode-Dependent Mixed Time Delays by Yurong Liu, Hamid Reza Karimi, Xiaohui Liu

“…The guaranteed cost control problem is investigated for a class of nonlinear discrete-time systems with Markovian jumping parameters and mixed time delays. …”
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Event-Triggered-Based External Consensus Protocol of RBF-ARX-Model-Based Networked Multiagent Systems with Nonlinear Dynamics and Communication Delays by Qi Lei, Ying Luo

“…An RBF-ARX modelling method is adopted to approximate a nonlinear system. By utilizing the RBF-ARX model, the locally linearized time series model can be obtained to describe the behaviour of agents with nonlinear characteristics. …”
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A Fuzzy Nonlinear Programming Approach for Optimizing the Performance of a Four-Objective Fluctuation Smoothing Rule in a Wafer Fabrication Factory by Horng-Ren Tsai, Toly Chen

“…In this study, a fuzzy nonlinear programming (FNLP) approach is proposed for optimizing the scheduling performance of a four-factor fluctuation smoothing rule in a wafer fabrication factory. …”
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Efficient pressure regulation in nonlinear shell-and-tube steam condensers via a Novel TDn(1 + PIDn) controller and DCSA algorithm by Mostafa Jabari, Serdar Ekinci, Davut Izci, Mohit Bajaj, Vojtech Blazek, Lukas Prokop

Subjects: “…Nonlinear control…”
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Robust Control of Underwater Vehicle-Manipulator System Using Grey Wolf Optimizer-Based Nonlinear Disturbance Observer and H-Infinity Controller by Yong Dai, Defeng Wu, Shuanghe Yu, Yan Yan

“…This paper proposes a new trajectory tracking scheme for the constrained nonlinear underwater vehicle-manipulator system (UVMS). …”
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Anxiety as a mediator between symptom distress and quality of life in peritoneal dialysis patients: insights from mediation analysis and nonlinear models by Sixia Chen, Yun Wang, Sheng Feng, Mingli Shen, Fan Zhang, Kai Song, Wenwen Li, Yun- Wang

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Models, systems, networks in economics, engineering, nature and society by A.O. Lapich

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Distributionally Robust Policy and Lyapunov-Certificate Learning by Kehan Long, Jorge Cortes, Nikolay Atanasov

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Interior Peak Solutions for a Semilinear Dirichlet Problem by Hissah Alharbi, Hibah Alkhuzayyim, Mohamed Ben Ayed, Khalil El Mehdi

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AgGaS₂ and Derivatives: Design, Synthesis, and Optical Properties by Guansheng Xing, Bing Chen

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Design and Dynamic Analysis of the Leveling System for Automatic Inspection Robots in Power Tunnels by Xu Shiyang, Wu Binghui, Ji Dongmei, Zhou Jiajun

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