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Algorithmic management stressors and aggressive driving behavior: Roles of attentiveness and regulatory focus

Transportation Research Part F: Traffic Psychology and Behaviour 2025年 114卷 16-29页

作者： Zhenduo Zhang Jianing Guo Qian Li Huan Xiao School of Economics and Management Dalian University of Technology Dalian China Postdoctoral Mobile Station for Management Science and Engineering Nanchang University Nanchang China

The rise of ride-hailing platforms has changed customers’ travel preferences and improved traffic efficiency. However, even though they are vital to ensuring customers’ safety and satisfaction, the roles of algorithmic management stressors in shaping ride-hailing drivers’ driving behavior are not well understood. This study draws on affective event theory to theorize how algorithmic management challenge and hindrance stressors manifest themselves in impacting aggressive driving behavior in the context of ride-hailing services. A time-lagged questionnaire survey design was used to collect data from 330 drivers working for ride-hailing services at four different time points. Latent mediation-moderation structural equation modeling was used to test the conceptual model. The results indicate that: 1) Algorithmic management challenge stressors undermine, while hindrance stressors promote, aggressive driving behavior. 2) Attentiveness mediates the indirect impacts of both algorithmic management challenge and hindrance stressors on aggressive driving behavior. 3) Promotion regulatory focus amplifies the indirect negative relationship that links algorithmic management challenge stressors through attentiveness to aggressive driving behavior. 4) Prevention regulatory focus amplifies the indirect positive relationship that links algorithmic management hindrance stressors through attentiveness to aggressive driving behavior. This study incorporates the aggressive driving behavior of ride-hailing drivers in the algorithmic era into road safety research by integrating the affective pathway of attention and drivers’ characteristics. The aim is to contribute to the understanding of the mechanisms and boundaries between algorithmic management stressors and aggressive driving behavior.

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Analyzing the interplay between money supply, mineral extraction, industrialization, and ecological footprint in latin America's global south: A symmetrical perspective

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Resources Policy 2025年 100卷

作者： Amin, Waqas Xie, Shouhong Rauf, Abdul School of Economics and Management Zhejiang Normal University Zhejiang Jinhua321004 China Mathematics Postdoctoral Mobile Station Zhejiang Normal University Jinhua321004 China School of Management Science and Engineering Nanjing University of Information Science and Technology Nanjing210044 China

The primary goal of this study is to examine the long-term impact of money supply, natural resource use, mineral extraction, industrialization, green energy use, and population density on the ecological footprint (EFP) in 11 high natural resource–based Latin American Global South nations from 1990 to 2021. The study employs Westerlund bootstrap LM, pooled mean group autoregressive distributed lag (PMG-ARDL), and Dumitrescu and Hurlin causality tests. Initially, Westerlund Bootstrap LM statistics reveal significant evidence of cointegration among the variables. Second, the PMG model results show that all regressors except green energy use have a significant positive effect on EFP in the long run, whereas, in the short run, all variables are found to have insignificant impact, excluding green energy use and industrialization. Finally, Dumitrescu and Hurlin tests indicate unidirectional causality of all the regressors with EFP, except mineral extraction and population density. The findings reveal some valuable policy implications for reducing EFP. Initially, central banks must initially limit money supply while altering the interest rate minimally. Over time, central banks must also promote green lending practices in industrial production sectors and charge higher interest on loans to firms that use outdated technology in industrial production. Furthermore, firms engaged in mineral and natural resource extraction must replace old equipment with new technologies that use green energy to curtail pollution emissions. © 2024 Elsevier Ltd

关键词： Decentralized finance

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Preparation of AZ91D magnesium alloy semi-solid billet by new strain induced melt activated method

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中国有色金属学会会刊：英文版 2006年第5期16卷 1080-1085页

作者：姜巨福罗守靖邹经湘 School of Materials Science and Engineering Harbin Institute of Technology Postdoctoral Mobile Station of Mechanics Harbin Institute of TechnologyHarbin 150001China Postdoctoral Mobile Station of Mechanics Harbin Institute of Technology

New strain induced melt activated (new SIMA) method for preparing AZ91D magnesium alloy semi-solid billet is introduced by applying equal channel angular extrusion into strain induced step in SIMA method, by which semi-solid billet with fine spheroidal grains and average grain size of 18 μm can be prepared. Furthermore, average grain size of semi-solid billet is reduced with increasing extrusion pass of AZ91D magnesium alloy obtained in ECAE process. By using semi-solid billet prepared by new SIMA, thixoforged magazine plates component with high mechanical properties such as yield strength of 201.4 MPa, ultimate tensile strength of 321.8 MPa and elongation of 15.3%, can be obtained.

关键词：等通道角挤压半固体坯料机械性能镁合金

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Preparation and thixoforging of semisolid billet of AZ80 magnesium alloy

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Transactions of Nonferrous Metals Society of China 2010年第9期20卷 1731-1736页

作者：姜巨福王迎曲建俊杜之明罗守靖 School of Materials Science and Engineering Harbin Institute of Technology Postdoctoral Mobile Station of Mechanical Engineering Harbin Institute of Technology School of Mechatronics Engineering Harbin Institute of Technology Postdoctoral Mobile Station of Mechanics Harbin Institute of Technology

Semisolid billet of AZ80 magnesium alloy was prepared by new strain induced melt activated (new SIMA) process and thixoforging experiment was *** results show that after as-cast AZ80 magnesium alloy is processed by equal channel angular extrusion, microstructure is refined well due to heavy dynamic recrystallization occurring in severe plastic *** with semisolid isothermal treatment and conventional SIMA, semisolid billet with fine and spheroidal grains are achieved in new *** process of semisolid billet prepared by new SIMA has many advantages such as good surface quality of final component, high ability to fill cavity and *** fine and spheroidal grains and high mechanical properties such as tensile strength of 298 MPa and elongation of 28% can be developed in final part thixoforged.

关键词： AZ80 magnesium alloy semi-solid forming thixoforging semisolid billet strain induced melt activation

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Numerical simulation and experiment validation of thixoforming angle frame of AZ61 magnesium alloy

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中国有色金属学会会刊：英文版 2010年第S3期20卷 888-892页

Numerical simulation and experiment of thixoforming angle frame of AZ61 magnesium alloy were *** results show that with the increase in punch displacement,cylinder billet firstly fills into die cavity of angle frame from feed inlet and plastic deformation occurs in touching region between billet and die *** central thin wall of angle frame is created,semi-solid billet fills toward two ***,complete plastic deformation occurs in billet,leading to complete filling of semis-olid *** strain,effective stress and billet temperature decrease with the increase in punch *** stress decreases with the increase in billet temperature,die temperature and punch *** optimal conditions decided by numerical simulation are as follows:die temperature of 450 ℃,billet temperature of 560 ℃ and punch velocity of 30 mm/*** frame components with high mechanical properties such as yield strength of 225 MPa,tensile strength of 309 MPa and elongation of 21.8% and fine microstructure could be thixoformed successfully according to process parameters decided by numerical simulation.

关键词： AZ61 magnesium alloy numerical simulation semi-solid billet thixoforming

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Effect of contact materials on the transient characteristics of vacuum arc plasma and anode erosion

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Plasma science and technology 2024年第11期26卷 170-180页

作者： Ze YANG Dongsheng CAI Qi HUANG Lijun WANG College of Nuclear Technology and Automation Engineering Chengdu University of TechnologyChengdu 610059People’s Republic of China Postdoctoral Mobile Station in Nuclear Science and Technology Chengdu University of TechnologyChengdu 610059People’s Republic of China School of Information Engineering Southwest University of Science and TechnologyMianyang 621010People’s Republic of China State Key Laboratory of Electrical Insulation and Power Equipment Xi’an Jiaotong UniversityXi’an 710049People’s Republic of China

In this study, the mechanisms of the anode phenomena and anode erosion with various contact materials were investigated. Arc parameters were calculated, and the anode temperature was predicted with a transient self-consistent model. The simulation results predicted a constricted arc column and obvious anode phenomena in Cu–Cr alloy contacts than in W–Cu alloy *** observation could be the reason for the concentrated anode erosion in Cu–Cr alloys. For the contacts made by pure tungsten(W) and W–Cu alloy, the anode temperature increased rapidly because of the low specific heat of W. However, the maximum energy flux from the arc column to the anode surface was lower than in other cases. The simulation results were compared with experimental results.

关键词： vacuum arc MHD model anode erosion contact materials

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Robotic liquid handling system for microdispensing of highly viscous reagent

Robotic liquid handling system for microdispensing of highly...

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International Conference on Measuring technology and Mechatronics Automation

作者： Liu, Yaxin Yao, Yufeng Chen, Liguo Harbin Institute of Technology Weihai China Instrument Science and Technology Postdoctoral Mobile Station Harbin Institute of Technology Harbin China

ISBN: (纸本)9780769542966

A robotic liquid handling system is developed for dispensing highly viscous reagent with nanoliter volumes. The robot in question is of immediate need in protein crystallization research and in electronics packaging field. In this paper, the system structure is introduced which mainly consists of three modules: motion control module, dispense control module and droplet volume measure module. Highly viscous reagent can be dispensed in nanoliter through controlling the dispense control module and the motion control module correctly, and the volume of micro-drop can be measured based on robotic vision technique. The factors that influence the successful delivery of nanoliter volumes of highly viscous reagent are discussed through analysis of the dispensing process. And the two critical values that the dispense height should be kept are derived. Finally, three kinds of reagent with different viscosity are used for dispensing experiments to verify the theoretical results. The accuracy of the system has been shown to be below 7%, and the coefficient of variance (CV) has been shown to be below 10%. © 2011 IEEE.

关键词： Motion control

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Hydrogen Permeation Performance of Ni-BaZr0.1Ce0.7Y0.2O3-δ Metal-Ceramic Hollow Fiber Membrane

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Chinese Journal of Chemical Physics 2012年第2期25卷 125-128,I0003页

作者： Chun-li Yang Qi-ming Xu Zhi-wen Zhu Wei Liu Postdoctoral Mobile Research Station of Materials Science and Engineering Xi'an University of Architecture and TechnologyXi'an 710055China CAS Key Laboratory of Energy Conversion Materials Department of Materials Science and EngineeringUniversity of Science and Technology of ChinaHefei 230025China

Acknowledgment： This work was supported by the National Natural science Foundation of China （No.21076204） and the Basic Research Foundation

关键词： Hollow fiber Cermet Hydrogen permeation Phase inversion

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Correction to: Microstructure Evolution and Mechanical Behavior of AZ31 Magnesium Alloy Sheet with Bimodal Texture under Bending Deformation (Journal of Materials Engineering and Performance, (2024), 10.1007/s11665-024-10109-1)

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Journal of Materials Engineering and Performance 2024年 1-2页

作者： You, Yunxiang Tan, Li Zhou, Tao Tu, Jian Zhou, Zhiming College of Materials Science and Engineering Chongqing University of Technology Chongqing400054 China Postdoctoral Mobile Station of Materials Science and Engineering Chongqing University Chongqing400030 China

In the originally published version of the article, elements in Fig. 2 were labeled incorrectly. The correctly labeled figure is shown as follows. (Figure presented.) FEM model and plane stress–strain distribution for AZ31 alloy with bimodal texture in three-point bending: a sheet before bending and showing the loading direction. b Mises stress distribution of the sheet after bending deformation. c Plane stress and strain distribution in the bent portion. d Stress distribution along the X-axis on the grids at points A and B © ASM International 2024.

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Design of fatigue and distraction driving detection system based on line of sight impact 4

Design of fatigue and distraction driving detection system b...

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4th International Conference on Computer Engineering and Application, ICCEA 2023

作者： Shi, Shuang Feng, Pengfei Zhu, Mengyu Zhu, Jingru Anhui Sanlian Group Postdoctoral Workstation China Postdoctoral Research Mobile Station of School of Computer Science and Technology Anhui University China Anhui Sanlian University China

ISBN: (纸本)9798350347548

Fatigue driving and distracted driving both belong to bad driving behaviors, but their hazard levels to safe driving are different. Through accurate detection and classification warning, not only driving safety can be ensured, but also transportation efficiency can be improved. According to the view angle, the driver's view is divided into 17 areas, which is more in line with the actual human physiological situation. The experiment was conducted on 30 drivers based on the indicators such as line of sight impact point, number of stay frames, and number of regional impact points, and the original data was analyzed by independent sample t-test. It was concluded that there was a significant difference between fatigue driving and distracted driving. By building a double objective prediction BP neural network model of driving state, two types of bad driving behaviors could be classified and detected with high accuracy. The warning system of fatigue driving and distracted driving was designed to realize the hierarchical warning of two types of bad driving behaviors. © 2023 IEEE.

关键词： Neural networks

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