Effect of Wear-Resistant Tape Layers on Torsional Characteristics of Unbonded Flexible Pipes Under Internal Pressure by LUO Chunmiao, FU Shixiao, ZHANG Mengmeng, CHEN Kunpeng, CUI Xiaoxuan

“…However, there are still torsional imbalances due to simplifying assumptions in the current analytical theory. To improve the accuracy of torsion simulation and reduce the impacts on the practical applications of the pipelines, this paper focuses on the wear-resistant layer neglected in previous studies. …”
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Modeling and Dynamical Analysis of the Water Resources Supply-Demand System: A Case Study in Haihe River Basin by Chongli Di, Xiaohua Yang

“…Finally, the dynamical analysis of the system is further studied by Lyapunov-exponent, phase portraits, and Lyapunov exponent theory. Numerical simulation results demonstrate that the proposed water resources supply-demand system is in a steady state and is suitable for simulating the dynamical characteristics of a complex water supply and demand system. …”
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Research on the Low Frequency Broadband Piezoelectric-Magnetostrictive Hybrid Transducer by Duo Teng, Ning Zhu

“…The effective ways for underwater transducer to lower its operating frequency, to broaden its bandwidth, and to develop its miniaturization are investigated. According to the theory of coupled multimode vibrations, a novel Hybrid transducer is developed. …”
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Global Existence of Solutions for a Nonstrictly Hyperbolic System by De-yin Zheng, Yun-guang Lu, Guo-qiang Song, Xue-zhou Lu

“…Second, we use the compensated compactness theory, Murat (1978) and Tartar (1979), to prove the convergence of the approximation solutions.…”
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Assembly Accuracy Analysis Method Based on Multi‐Stage Linearized Contact by Wenbin Tang, Yadong Li, Tong Yan, Min Zhang

“…The relationship between the assembly load and the deformation amount is established based on the related theories of contact mechanics and the geometric relationship between the assembly interfaces, thus enabling the prediction of the part's pose during the assembly process. …”
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How do intermediary organizations affect cultivated land conservation in China: the mediating role of land tenure stability by Jian Cai, Jiating Chen, Runmin Wu, Rosmini Omar, Binyao Ning, Binyao Ning

“…Using bounded rationality and property rights theories, we conducted quantitative research involving 564 farmers across five provinces in mainland China. …”
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Dynamic Sign Guidance Optimization for Crowd Evacuation considering Flow Equilibrium by Minghua Li, Chengyong Xu, Yan Xu, Li Ma, Yun Wei

“…A method based on the fundamental diagram, the cell transmission model, and the point-queuing theory is developed to estimate evacuation travel time considering congestion and queuing. …”
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Study on Rock-Breaking Depth and Damage Area under Particle Jet Impact by Fushen Ren, Tiancheng Fang, Xiaoze Cheng

“…Then, based on the spherical cavity expansion theory, the mathematical model of rock-breaking depth and damage area under particle jet impact was established. …”
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Efficient amine-assisted CO2 hydrogenation to methanol co-catalyzed by metallic and oxidized sites within ruthenium clusters by Desheng Su, Yinming Wang, Haoyun Sheng, Qihao Yang, Dianhui Pan, Hao Liu, Qiuju Zhang, Sheng Dai, Ziqi Tian, Zhiyi Lu, Liang Chen

“…., metallic and oxidized Ru), are rationally fabricated. Density functional theory calculations suggest that metallic Ru forms are preferred for N-formylation step, whereas oxidized Ru species demonstrate enhanced amide hydrogenation activity. …”
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IBOA-Based Optimization of Cross-Sectional Dimension of Rods for a 3-RRR PPM to Minimize Energy Consumption by Yin Gao, Ke Chen, Hong Gao, Hongmei Zheng, Lei Wang, Kerong Jiang

“…For obtaining optimal cross-sectional dimensions of rods for a 3-RRR planar parallel manipulator (PPM) to minimize energy consumption, the inverse dynamics of the manipulator is modeled based on the Newton–Euler method, after which the coefficient matrix of the inverse dynamics equation is decomposed based on matrix theory. Hence, the objective function, that is, the logical relationship between the energy consumption of the manipulator and the cross-sectional dimension of each rod, is established. …”
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The prospect of using ozone-safe refrigerants with low global warming potential in scroll compressors. Research and practice of using R744 and R290. Part 2 by V. A. Pronin, A. V. Kovanov, E. A. Kalashnikova, V. A. Tsvetkov

“…The question of the relationship between the properties of hydrofluorocarbons and natural refrigerants is considered, as well as the possibility of using the theory of thermodynamic similarity to solve it. Data on commercially available scroll compressors operating on natural refrigerants have been taken into account in terms of their advantages and disadvantages. …”
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Deciphering consciousness: The role of corticothalamocortical interactions in general anesthesia by Yuxi Zhou, Shiqian Huang, Tianhao Zhang, Daling Deng, Li Huang, Xiangdong Chen

“…General anesthesia is administered to millions of individuals each year, however, the precise mechanism by which it induces unconsciousness remains unclear. While some theories suggest that anesthesia shares similarities with natural sleep, targeting sleep-promoting areas and inhibiting arousal nuclei, recent research indicates a more complex process. …”
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Molecular Docking, Dynamics Simulations, ADMET, and DFT Calculations: Combined In Silico Approach to Screen Natural Inhibitors of 3CL and PL Proteases of SARS-CoV-2 by Sugumar Mohanasundaram, Porkodi Karthikeyan, Venkatesan Sampath, M. Anbazhagan, Sundramurthy Venkatesa Prabhu, Jamal M. Khaled, Muthu Thiruvengadam

“…The top-scored compounds were further analyzed for absorption, digestion, metabolism, excretion, and toxicity properties and density functional theory analysis. Our results indicated that glycyrrhizin exhibited better docking scores of -9.5 kcal/mol with main protease and -9.7 kcal/mol with papain-like protease. …”
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The evolution patterns of active functional groups and reaction pathways during the low-temperature oxidation process of coal by CHEN Xiangyuan, LIU Xingyu, YAO Yutong, ZHAO Zining

“…Based on the quantum chemistry theory, we conducted structural optimization, transition state configuration analysis, thermodynamic parameter calculations and intrinsic reaction coordinate (IRC) computations on the constructed coal molecular models by using GaussView 6.0 and Gaussian 16. …”
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Unveiling the Multifaceted Nature of Sr2FeMoO6 Double Perovskites: Insights into Electronic and Optical Properties by Hajjami Manal, Oublkacem Ali, Benhouria Younes

“…In order to gain insight into its electronic structure, calculations are performed using the density functional theory (DFT) approach integrated into the Quantum Espresso software package. …”
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Numerical Studies of the Gas-Solid Hydrodynamics at High Temperature in the Riser of a Bench-Scale Circulating Fluidized Bed by Maximilian J. Hodapp, Jhon J. Ramirez-Behainne, Milton Mori, Leonardo Goldstein

“…For the CFD simulations, the two-fluid approach was used to represent the gas-solid flow with the k-epsilon turbulence model being applied for the gas phase and the kinetic theory of granular flow (KTGF) for the properties of the dispersed phase. …”
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Boosting the synthesis of 3-acetamido-5-acetylfuran from N-acetyl-D-glucosamine: understanding the significant role of homogeneous Cl - by Delong Yang, Jinhang Dai, Ziting Du, Qingya Cao, Gang Chen, Ting Qi, Weilu Wang, Fukun Li

“…Experiment results and density functional theory (DFT) calculations revealed that homogeneous Cl− was vital for 3A5AF formation. …”
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Research on Dynamic Modeling and Vibration Characterization of Integrated Bearings by Chuanxiao Zhi, Jingyu Zhai, Baogang Wen, Ning Li

“…This study is based on the theoretical framework of rolling bearing dynamics and considers bearing friction, lubrication, and Hertz elastic contact theory. A dynamic simulation model considering the interaction between the components of the rolling bearing is established. …”
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Numerical Analysis of Hydrodynamics for Bionic Oscillating Hydrofoil Based on Panel Method by Gang Xue, Yanjun Liu, Muqun Zhang, Hongpeng Ding

“…The kinematics model based on the Slender-Body theory is proposed from the bionic movement of real fish. …”
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Exponential Trajectory Tracking Control of Nonholonomic Wheeled Mobile Robots by Plamen Petrov, Ivan Kralov

“…A theoretical stability analysis of the dynamic behaviors of the closed-loop system is provided based on the Lyapunov stability theory, and an exponential stability result is proven. …”
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