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Will Online Car-Hailing Affect Consumers’ Decisions about Automobile Purchase?—An Empirical Study Based on Questionnaire Investigation

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Journal of Transportation Technologies 2024年第1期14卷 1-15页

作者： Xuehong Ji sisi Chen Xuecheng Wang Jing Wang College of Economics and Business Administration North China University of Technology Beijing China

The online car-hailing industry, which provides the right of use, has a certain impact on the traditional automobile market, but there is no unified theory on whether it has a positive impact or a negative impact. Based on 362 consumer questionnaire data, this study builds a structural equation model to discuss the driving factors of residents’ choice of online car-hailing and whether the development of online car-hailing will have a certain substitution impact on the sales of private cars. From the perspective of consumers’ purchase intention, the research results show that consumers’ price consciousness, convenience consciousness, environmental protection consciousness and possession tendency will affect their choice of travel mode, and the use of online car-hailing is positively correlated with consumers’ willingness to replace private car ownership with online car-hailing.

关键词： Online Car-Hailing Willingness to Use Ownership Substitution Carpooling

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面向行人分类保护的汽车气囊式吸能装置研究

汽车工程 2024年第9期46卷 1687-1696,1686页

作者：闫凯波舒洋陆思思段辉杨杰重庆交通大学机电与车辆工程学院重庆400074 重庆嘉陵特种装备有限公司重庆400032 北京理想汽车有限公司北京101399

当前面向行人的碰撞保护研究主要针对成人开展,未对成人和儿童实施分类保护。本文根据EuroNCAP相关碰撞条款,建立了人-车碰撞数值仿真模型。仿真分析表明,通用气囊无法同时有效降低成人和儿童头部损伤。为此,根据安全气囊的特点及成人... 详细信息

当前面向行人的碰撞保护研究主要针对成人开展,未对成人和儿童实施分类保护。本文根据EuroNCAP相关碰撞条款,建立了人-车碰撞数值仿真模型。仿真分析表明,通用气囊无法同时有效降低成人和儿童头部损伤。为此,根据安全气囊的特点及成人和儿童生理上的差异研究了成人和儿童分类保护气囊式吸能装置,并提出了一种改进的YOLOv5行人目标检测模型以实现对成人和儿童的分类识别。根据分类结果,汽车控制模块动态调整气囊式吸能装置参数,使该装置能够针对成人和儿童分别展开到不同状态,实现对行人的分类保护。结果表明,所设计的目标检测模型能够实现行人的分类识别,与初始模型相比,其在成人和儿童类别检测精确度方面分别提高了3.11%和4.32%。安装分类保护气囊装置后,成人头部HIC值能够最大降低63.4%,峰值加速度能够最大降低61.7%;儿童头部HIC值能够最大降低31.4%,峰值加速度能够最大降低53.2%。研究成果能够为行人主被动安全保护装置设计提供科学理论支撑。

关键词：碰撞头部损伤气囊式吸能装置分类保护

吲哚菁绿血管造影技术在评价带蒂皮瓣血流灌注中的研究进展

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中华整形外科杂志 2024年第5期40卷 571-575页

作者：罗思思杨喆李养群中国医学科学院北京协和医学院整形外科医院尿道下裂整形中心北京100144

吲哚菁绿(ICG)是一种水溶性生物荧光造影剂,具有红外吸收和发射特性。吲哚菁绿血管造影(ICGA)技术利用这一生物特性,可实现脉管结构及组织血运的可视化以及组织灌注及血流动力学的定量评估,在整形外科及显微外科领域的应用日趋广泛。该... 详细信息

吲哚菁绿(ICG)是一种水溶性生物荧光造影剂,具有红外吸收和发射特性。吲哚菁绿血管造影(ICGA)技术利用这一生物特性,可实现脉管结构及组织血运的可视化以及组织灌注及血流动力学的定量评估,在整形外科及显微外科领域的应用日趋广泛。该综述介绍了ICGA工作原理和方法及其在评估带蒂皮瓣血流灌注方面的研究进展,认为该技术在方法学及结果准确性方面仍具有一定的局限性,临床上对于带蒂皮瓣组织灌注评估时仍需要结合医师临床经验综合评估。

关键词：血管造影术吲哚菁绿血管造影带蒂皮瓣血流灌注

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General Psychiatry 2024年第1期37卷 73-82页

作者： Qian Lu sisi Huang Tianjiao Zhang Jie Song Manyu Dong Yilun Qian Jing Teng Tong Wang Chuan He Ying Shen Department of Rehabilitation Medicine The Affiliated Jiangsu Shengze Hospital of Nanjing Medical UniversitySuzhouChina Rehabilitation Medicine Center The First Affiliated Hospital of Nanjing Medical UniversityNanjingChina

Background The neurophysiological differences in cortical plasticity and cholinergic system function due to ageing and their correlation with cognitive function remain poorly *** To reveal the differences in long-term potentiation(LTP)-like plasticity and short-latency afferent inhibition(SAl)between older and younger individuals,alongside their correlation with cognitive function using transcranial magnetic stimulation(TMS).Methods The cross-sectional study involved 31 younger adults aged 18-30 and 46 older adults aged *** participants underwent comprehensive cognitive assessments and a neurophysiological evaluation based on *** function assessments included evaluations of global cognitive function,language,memory and executive *** neurophysiological assessment included LTP-like plasticity and *** The findings of this study revealed a decline in LTP among the older adults compared with the younger adults(wald χ^(2)=3.98,p=0.046).Subgroup analysis further demonstrated a significant reduction in SAl level among individuals aged 70-80 years in comparison to both the younger adults(SAI(N20)):(t=-3.37,p=0.018);SAl(N20+4):(t=-3.13,p=0.038)and those aged 60-70(SAl(N20)):(t=3.26,p=0.025);SAl(N20+4):(t=-3.69,p=0.006).Conversely,there was no notable difference in SAl level between those aged 60-70 years and the younger ***,after employing the Bonferroni correction,the correlation analysis revealed that only the positive correlation between LTP-like plasticity and language function(r=0.61,p<0.001)in the younger group remained statistically *** During the normal ageing process,a decline in synaptic plasticity may precede cholinergic system *** individuals over 60 years of age,there is a reduction in LTP-like plasticity,while a decline in cholinergic system function is observed in those over ***,the cholinergic system may play a vital role in preventing cognitive decline during normal

关键词： function younger plasticity

基于Innography平台的碳纤维布专利分析及创新趋势研究

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现代情报 2016年第6期36卷 154-164,170页

作者：杨思思戴磊汪一名吉林省科学技术信息研究所吉林长春130033 吉林亚泰(集团)股份有限公司吉林长春130000

本文利用Innography专利检索与分析平台,对全球碳纤维布专利进行了检索及数据统计,从专利的年度发展趋势、专利权人、专利技术热点和该技术的核心专利等多方面分析了全球碳纤维布技术的大概情况和日美等技术重点国的详细情况,以期为我... 详细信息

本文利用Innography专利检索与分析平台,对全球碳纤维布专利进行了检索及数据统计,从专利的年度发展趋势、专利权人、专利技术热点和该技术的核心专利等多方面分析了全球碳纤维布技术的大概情况和日美等技术重点国的详细情况,以期为我国碳纤维布技术的研发决策提供支持与依据。研究发现,碳纤维布技术近年来发展迅速,日本和美国在碳纤维布技术研究领域占据主导地位,目前正处于新一轮发展阶段。

关键词： Innography 碳纤维布专利检索核心专利专利情报

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婴幼儿脐膨出脐部重建脐位置的选择

中华小儿外科杂志 2022年第9期43卷 806-810页

作者：王鹏吕成杰钭金法杨思思浙江大学医学院附属儿童医院新生儿外科国家儿童健康与疾病临床医学研究中心杭州310003

目的探讨婴幼儿脐膨出腹壁重建时脐部定位的选择。方法收集2019年1月至12月浙江大学医学院附属儿童医院收治的脐膨出患儿共55例,其中男35例,女例20;出生体重范围为1800~3920 g。患儿均为脐部型脐膨出,其中小型脐膨出16例,巨大脐膨出34例... 详细信息

目的探讨婴幼儿脐膨出腹壁重建时脐部定位的选择。方法收集2019年1月至12月浙江大学医学院附属儿童医院收治的脐膨出患儿共55例,其中男35例,女例20;出生体重范围为1800~3920 g。患儿均为脐部型脐膨出,其中小型脐膨出16例,巨大脐膨出34例,巨大脐膨出术后腹壁疝5例。收集统计150例正常腹壁小儿的脐部位置临床资料,按年龄将正常腹壁小儿分为早产儿组、足月儿新生儿组、3个月月龄组、6个月月龄组、1岁龄组以及2岁龄组共6组,每组均为男12例,女13例。通过测量正常小儿不同年龄组剑突至脐部的距离(xiphoid-center of umbilicus,XU)、剑突至耻骨联合上缘的距离(xiphoid-pubic symphsis,XP),统计正常小儿XU/XP的特点,作为指导脐部定位的依据,55例患儿根据腹壁缺损大小、腹壁肌肉发育情况以及膨出物大小,选择不同的手术方式。结果不同年龄组正常腹壁小儿的XU/XP值为0.53~0.56,平均值为0.54。55例脐膨出患儿均顺利完成手术,其中10例小型脐膨出腹壁缺损较小(约1~2 cm)的在腹壁缺损处行脐部重建;6例小型脐膨出腹壁缺损稍大(约3~5 cm)的在缺损下缘行脐部重建;29例巨大型脐膨出在XU/XP为0.54处行脐部重建例;5例巨大脐膨出因腹壁肌层发育较差,仅缝合腹壁皮肤和筋膜层,未予以脐部重建;5例巨大脐膨出术后腹壁疝小儿在XU/XP为0.54处行脐部重建,术后见脐位置良好。结论XU/XP为0.53~0.56是一个理想的脐重建位置的选择,脐膨出腹壁重建时可以此为参考。

关键词：腹壁脐膨出脐重建

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中国传统文化在高职电类专业课中的融入策略

文化创新比较研究 2021年第11期5卷 50-52,76页

作者：杨思斯邓飞湖南水利水电职业技术学院湖南长沙410131

中国传统文化是中华文明成果根本的创造力,承载着中国五千年延绵不断的精神价值和道德理念,蕴含着非常丰富的思想内涵和文化内涵。将中国传统文化有效融入专业课教学中,不仅可以加强学生对中国优秀传统文化的理解,从源头上增强民族自信... 详细信息

中国传统文化是中华文明成果根本的创造力,承载着中国五千年延绵不断的精神价值和道德理念,蕴含着非常丰富的思想内涵和文化内涵。将中国传统文化有效融入专业课教学中,不仅可以加强学生对中国优秀传统文化的理解,从源头上增强民族自信,继承和弘扬文化中传达的科学、严谨等与专业学习密切相关的优秀文化精神,同时也可以促进专业课的学习。该文通过案例的方式分析中国传统文化在高职电类专业课中的渗透与应用,以期为高职电类专业课教学中的课程思政提供有益借鉴。

关键词：中国传统文化课程思政专业课

Biomimetic Infiltrating Surface Construction Based on Micro and Nano Structures

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Journal of Materials Science and Chemical Engineering 2024年第6期12卷 83-91页

作者： Zhicheng Zhou Jiayu Li sisi Lu Quanying Lin Chien-Shiung Wu College Southeast University Nanjing China

Microfluidic chips hold significant potential for applications in various fields, such as biological analysis, chemical separation, and drug screening. Here, we draw inspiration from the natural ability of aquatic plants to capture different substances in streams, focusing on the design and fabrication of surfaces with micron and nano-scale structures to mimic the wetting phenomenon observed in nature, thereby achieving the capture and separation of specific substances. This paper reports on the self-assembly of magnetic nanoparticles, the preparation of flexible magnetic nano-chains, and the modification of microfluidic chip surfaces, providing a novel perspective and approach to microfluidic chip technology.

关键词： Lab-on-a-Chip Magnetic Nanoparticles Biosensors Microfluidic

SiO_(2) Induces Iron Overload and Ferroptosis in Cardiomyocytes in a Silicosis Mouse Model

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Biomedical and Environmental Sciences 2024年第6期37卷 617-627页

作者： Yongheng Wang Ning Li Yi Guan Tong LI Yuxiu Zhang Hong Cao Zhihua Yu Zhiheng Li Shuoyan Li Jiahao Hu Wenxin Zhou sisi Qin Shuang Li Sanqiao Yao School of Public Health North China University of Science and TechnologyTangshan 063210HebeiChina Hebei Key Laboratory of Occupational Health and Safety for Coal Industry North China University of Science and TechnologyTangshan 063210HebeiChina Occupational Disease Prevention and Control Institute of Jinneng Holding Coal Industry Group Co. LtdDatong 037001ShanxiChina China Pingmei Shenma Group Occupational Disease Prevention and Control Hospital Pingdingshan 467000HenanChina School of Public Health Xinxiang Medical UniversityXinxiang 453003HenanChina

Objective The aim of this study was to explore the role and mechanism of ferroptosis in SiO_(2)-induced cardiac injury using a mouse *** Male C57BL/6 mice were intratracheally instilled with SiO_(2) to create a silicosis ***-1(Fer-1)and deferoxamine(DFO)were used to suppress *** biomarkers,oxidative stress markers,histopathology,iron content,and the expression of ferroptosis-related proteins were *** SiO_(2) altered serum cardiac injury biomarkers,oxidative stress,iron accumulation,and ferroptosis markers in myocardial ***-1 and DFO reduced lipid peroxidation and iron overload,and alleviated SiO_(2)-induced mitochondrial damage and myocardial ***_(2) inhibited Nuclear factor erythroid 2-related factor 2(Nrf2)and its downstream antioxidant genes,while Fer-1 more potently reactivated Nrf2 compared to *** Iron overload-induced ferroptosis contributes to SiO_(2)-induced cardiac *** ferroptosis by reducing iron accumulation or inhibiting lipid peroxidation protects against SiO_(2) cardiotoxicity,potentially via modulation of the Nrf2 pathway.

关键词： SiO_(2) exposure Iron overload Ferroptosis Cardiac injury Nrf2