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Research on Anthropomorphic Obstacle Avoidance Trajectory Planning for Adaptive Driving Scenarios Based on Inverse Reinforcement Learning Theory

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Engineering 2024年第2期33卷 133-145页

作者： jian wu Yang Yan Yulong Liu Yahui Liu School of Mechanical and Automotive Engineering Liaocheng UniversityLiaocheng 252000China 2 School of Vehicle and Mobility Tsinghua UniversityBeijing 100084China

The forward design of trajectory planning strategies requires preset trajectory optimization functions,resulting in poor adaptability of the strategy and an inability to accurately generate obstacle avoidance trajectories that conform to real driver behavior *** addition,owing to the strong time-varying dynamic characteristics of obstacle avoidance scenarios,it is necessary to design numerous trajectory optimization functions and adjust the corresponding ***,an anthropomorphic obstacle-avoidance trajectory planning strategy for adaptive driving scenarios is ***,numerous expert-demonstrated trajectories are extracted from the HighD natural driving ***,a trajectory expectation feature-matching algorithm is proposed that uses maximum entropy inverse reinforcement learning theory to learn the extracted expert-demonstrated trajectories and achieve automatic acquisition of the optimization function of the expert-demonstrated ***,a mapping model is constructed by combining the key driving scenario information that affects vehicle obstacle avoidance with the weight of the optimization function,and an anthropomorphic obstacle avoidance trajectory planning strategy for adaptive driving scenarios is ***,the proposed strategy is verified based on real driving *** results show that the strategy can adjust the weight distribution of the trajectory optimization function in real time according to the“emergency degree”of obstacle avoidance and the state of the ***,this strategy can generate anthropomorphic trajectories that are similar to expert-demonstrated trajectories,effectively improving the adaptability and acceptability of trajectories in driving scenarios.

关键词： Obstacle avoidance trajectory planning Inverse reinforcement theory Anthropomorphic Adaptive driving scenarios

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A novel and promising engineering application of carbon dots:Enhancing the chloride binding performance of cement

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Chinese Chemical Letters 2024年第6期35卷 409-416页

作者： wu-jian Long Yang Yu Chuang He Guangdong Provincial Key Laboratory of Durability for Marine Civil Engineering Key Lab of Coastal Urban Resilient InfrastructureMOECollege of Civil and Transportation EngineeringShenzhen UniversityShenzhen 518060China

Corrosion of reinforcement induced by chloride invasion is extensively considered as the dominating deterioration mechanism of reinforced concrete(RC)structures,leading to serious safety hazards and tremendous economic ***,it still lacks well dispersive and cost-efficient nanomaterials to improve the anti-chloride-corrosion ability of RC ***,specific carbon dots(CDs)with high dispersity and low cost are deliberately designed,successfully prepared by hydrothermal processing,and then firstly applied to immensely enhance chloride binding performance of cement,thereby contributing to suppressing the corrosion of ***,the tailored CDs are composed of the carbon core with highly crystalline sp^(2)C structures and oxygen-containing groups connecting on the carbon core;The typical equilibrium test confirms that with respect to that of the blank cement paste,the chloride binding capacity of cement paste involving 0.2 wt%(by weight of cement)CDs is increased by 109% after 14-day exposure to 3 mol/L Na Cl solution;according to comprehensive analyses of phase compositions,the chloride binding mechanism of CDs-modified cement is rationally attributed to the fact that the incorporation of CDs advances the formation of calcium silicate hydrate(C-S-H)gels and Friedel's salt(Fs),thus enormously enhancing the physically adsorbed and chemically bound chloride ions of cement *** work not only firstly provides a novel high-dispersity and low-cost nanomaterial toward the durability enhancement of RC structures,but also broadens the application of CDs in the field of engineering,conducing to stimulating their industrialization development.

关键词： Carbon dots Chloride binding Cement Chloride binding mechanism Friedel’s salt

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Analysis of the Flow Field and Impact Force in High-Pressure Water Descaling

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Fluid Dynamics & Materials Processing 2024年第1期20卷 165-177页

作者： Yue Cui Liyuan Wang jian wu Haisheng Liu Di wu Key Lab of Intelligent Equipment Digital Design and Process Simulation Hebei ProvinceTangshan UniversityTangshan063000China Department of Intelligent Manufacturing Tangshan Vocational College of Science and TechnologyTangshan063001China

This study aims to improve the performances of the high-pressure water descaling technology used in steel hot rolling *** particular,a 2050 mm hot rolling line is considered,and the problem is investigated by means of a fluid–structure interaction(FSI)method by which the descaling effect produced by rolling coils with different section sizes is *** a flat fan-shaped nozzle at the entrance of the R1R2 roughing mill,the outflow field characteristics and the velocity distribution curve on the strike line(at a target distance of 30–120 mm)are *** is found that the velocity in the center region of the water jet with different target distances is higher than that in the boundary *** the target distance increases,the velocity of the water jet in the central region *** comparison with experimental results,it is shown that the simulation model can accurately predict the impact position of the high-pressure water on the impact plate,thereby providing a computational scheme that can be used to optimize the nozzle space layout and improve the slabs’descent effect for different rolling specifications.

关键词： High pressure water descaling flow field analysis FSI target distance strike range

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Effect of the Coulomb and dielectric forces on the onset of Rayleigh-Bénard convection

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Acta Mechanica Sinica 2024年第6期40卷 64-77页

作者： Zhonglin Du Pedro A.Vázquez jian wu School of Energy Science and Engineering Harbin Institute of TechnologyHarbin150001China Heilongjiang Key Laboratory of Micro-and Nano-scale Fluid Flow and Heat Transfer Harbin150001China Departamento de Física Aplicada III ETSIIUniversidad de SevillaSevilla41092Spain

In this paper,the effect of Coulomb and dielectric forces on the onset of Rayleigh-Bénard convection(RBC)in a dielectric liquid layer contained between two parallel electrode plates has been numerically *** different operating conditions have been considered in electrohydrodynamic(EHD)conduction:ohmic and saturation,and variations in the physical properties of the dielectric fluid with *** electric equations and the state equations based on the Boussinesq approximation are integrated in the framework of OpenFOAM buoyantBoussinesqPimpleFoam *** results show that in the ohmic regime,the combined effect of Coulomb and dielectric forces promotes the onset of RBC flow,while in the saturation state,the inhibition of RBC flow by Coulomb force is more *** value of the critical Rayleigh number Ra decreases with increasing electric Reynolds number ReE in the ohmic regime,whereas in the saturation state,the critical Ra increases with increasing *** the saturation regime,the flow field always has a steady flow in the range of parameters ***,the onset of the RBC flow promoted by the dielectric force is more pronounced in the ohmic *** to the presence of the dielectric force,the flow field exhibits periodic oscillatory flow at low electric Reynolds numbers for the range of parameters considered.

关键词： EHD conduction Dielectric force Rayleigh-Bénard convection OpenFOAM

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MiR-107-3p/Atp6v0e1 contributes to protective effects of two selenium-containing peptides,TSeMMM and SeMDPGQQ on lead-induced neurotoxicity

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Food Science and Human Wellness 2024年第4期13卷 2060-2067页

作者： Yong Fang Tianhang Huang jian wu Xieqi Luo Fengjiao Fan Peng Li jian Ding Xinyang Sun College of Food Science and Engineering Nanjing University of Finance and Economics/Collaborative Innovation Center for Modern Grain Circulation and SafetyNanjing 210023China Laboratory of Neurodegenerative and Neuroinjury Diseases Wuxi School of MedicineJiangnan UniversityWuxi 214122China

Two selenium(Se)-containing peptides from Se-enriched rice,TSeMMM and SeMDPGQQ,possess neuroprotective potency against lead(Pb2+)-induced ***,the crosstalk between mRNA and microRNAs(miRNA)involved in the neuroprotection mechanism remains to be *** this study,RNA-sequencing and miRNA-sequencing were used to independently identify differentially expressed mRNAs and small RNAs profiles in Pb^(2+)-treated primary fetal rat cortical neurons and then the correlated miRNA-mRNA target pairs were *** was found that 34 mRNAs related to oxidative phosphorylation could be reversed by pretreatment of TSeMMM and *** protective effect of TSeMMM and SeMDPGQQ was mediated by upregulation of miR-107-3p,which downregulates the ATPase H+transporting V0 subunit e1(Atp6v0e1)mRNA level.A zebrafish model was applied to verify the relevance between the targeted mRNA and miRNA by real-time quantitative *** results indicated that miR-107-3p was a potential therapeutic target to achieve neuroprotection of Se-containing peptides via stimulation of Atp6v0e1.

关键词： Lead Se-containing peptides Neuroprotection miRNA

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The nature of electron density enhancement over a wide altitude range during ionosphere heating experiments at EISCAT

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Earth and Planetary Physics 2024年第2期8卷 408-414页

作者： Jun wu jian wu Jie Feng QingLiang Li ShuJi Hao ZhengWen Xu HaiSheng Zhao YaBin Zhang National Key Laboratory of Electromagnetic Environment China Research Institute of Radio Wave PropagationBeijing 102206China School of Physics Xidian UniversityXi’an 710071China

During the course of ionospheric heating experiments, researchers at the European Incoherent Scatter Scientific Association (EISCAT) observed an apparent electron density enhancement. The enhancement extended over a wide range of altitudes, above the reflection altitude of the high-frequency pump wave. However, whether this enhancement actually corresponds to a true enhancement in electron density remains an open question. When the dispersion relation of ion acoustic waves is followed, the frequency ratio of the enhanced ion line to the background ion line suggests that the profile of the effective ion mass may have remained unchanged. Furthermore, the solar radio flux and ion drift velocity indicate no significant changes in the ion species and their densities. In conclusion, the electron density enhancement observed at EISCAT should not, in fact, be considered a true enhancement.

关键词： incoherent scatter radar(ISR) ionospheric heating electron density ion acoustic wave

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Indole derivatives as agrochemicals:An overview

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Chinese Chemical Letters 2024年第7期35卷 66-72页

作者： Ping Sun Yuanqin Huang Shunhong Chen Xining Ma Zhaokai Yang jian wu National Key Laboratory of Green Pesticide Key Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationGuizhou UniversityGuiyang 550025China

Indole is a biologically active compound formed by the fusion of benzene and pyrrole,and it is widely found in natural products and *** to the unique structure and properties of indole,its derivatives often exhibit distinctive physiological activities,which has led to widespread attention in the field of pesticide *** the design strategies and structure-activity relationships(SARs)of compounds is a crucial step in developing novel *** review mainly summarizes indole compounds with plant growth regulating,antiviral,fungicidal,herbicidal,and insecticidal activities,with the aim of providing new insights into the discovery and mechanism of action of novel indole-based pesticides.

关键词： Indole compounds Agrochemicals Biological activity Structure-activity relationship Mechanism of action

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Parameters Optimization and Performance Evaluation of the Tuned Inerter Damper for the Seismic Protection of Adjacent Building Structures

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工程与科学中的计算机建模(英文) 2024年第1期138卷 551-593页

作者： Xiaofang Kang jian wu Xinqi Wang Shancheng Lei Key Laboratory of Intelligent Underground Detection Technology School of Civil EngineeringAnhui Jianzhu UniversityHefei230601China Chengnan College Changsha University of Science and TechnologyChangsha410015China

In order to improve the seismic performance of adjacent buildings,two types of tuned inerter damper(TID)damping systems for adjacent buildings are proposed,which are composed of springs,inerter devices and dampers in serial or in *** dynamic equations of TID adjacent building damping systems were derived,and the H2 norm criterion was used to optimize and adjust them,so that the system had the optimum damping performance under white noise random *** TID frequency ratio and damping ratio as optimization parameters,the optimum analytical solutions of the displacement frequency response of the undamped structure under white noise excitation were *** results showed that compared with the classic TMD,TID could obtain a better damping effect in the adjacent *** the TIDs composed of serial or parallel,it was found that the parallel TIDs had more significant advantages in controlling the peak displacement frequency response,while the H2 norm of the displacement frequency response of the damping system under the coupling of serial TID was *** the adjacent building composed of two ten-story frame structures as an example,the displacement and energy collection time history analysis of the adjacent building coupled with the optimum design parameter TIDs were carried *** was found that TID had a better damping effect in the full-time range compared with the classic *** paper also studied the potential power of TID in adjacent buildings,which can be converted into available power resources during earthquakes.

关键词： Adjacent buildings tuned inerter damper(TID) H2 norm optimization vibration control energy harvesting

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ABHD17C represses apoptosis and pyroptosis in hepatocellular carcinoma cells

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BIOCELL 2024年第9期48卷 1299-1310页

作者： Wang, Linpei Wang, Jiawei Shi, Chunfeng Wang, Wei wu, jian Zhejiang Univ Affiliated Hosp 1 Sch Med Dept SurgDiv Hepatobiliary & Pancreat Surg Hangzhou 310030 Peoples R China Fujian Med Univ Affiliated Hosp 2 Dept Hepatobiliary & Pancreat Surg Quanzhou 362000 Peoples R China

Background: Alpha/beta hydrolase domain-containing protein 17C (ABHD17C) is a depalmitoylation enzyme that removes the S-palmitoylation of targeted proteins. The hepatocellular carcinoma (HCC) cells SNU449 and Hep3B use ABHD17C as an oncogene; however, the exact mechanism of this action is yet unknown. Methods: The expression of ABHD17C in liver cancer tissues was analyzed by bioinformatics, and the expression of ABHD17C in clinical liver cancer tissues and adjacent normal tissues was detected. Then, the proliferative viability of HCC cells after overexpression or knockdown of ABHD17C was examined, and pyroptosis and apoptosis proteins were detected. Results: ABHD17C was overexpressed in human HCC tissues as well as numerous HCC cell lines. Depletion of ABHD17C caused reduced viability, cell cycle arrest, and defective invasion and migration in HCC cells, while overexpression of ABHD17C exhibited the opposite effect. Moreover, we discovered that the knockdown of ABHD17C resulted in enhanced apoptotic and pyroptotic phenotypes of HCC cells, whereas overexpression of ABHD17C attenuated such phenotypes. Conclusions: It suggests that ABHD17C contributes to HCC carcinogenesis, making it a promising target for medication treatment.

关键词： ABHD17C Hepatocellular carcinoma Apoptosis Pyroptosis RAS PATHWAY DISEASE

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Acknowledgment to reviewers—September 2023 to June 2024

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Journal of Sport and Health Science 2024年第6期13卷 872-873页

作者： Peijie Chen Walter Herzog jian wu 不详

The Editors of the JSHS would like to thank all the authors who have contributed to the JSHS over the past *** your support,JSHS has become an internationally recognized journal in the *** are also deeply indebted to the following people who served as reviewers and gave their time and expertise to carefully and constructively assess papers and facilitate the smooth running of JSHS in this past year.

关键词： journal reviewers thank

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