汽车技术检测的新趋势

汽车的性能检测就是在汽车使用和维修过程中对汽车的技术状况进行测试、检验和故障诊断。文章介绍了汽车检测技术的发展,阐述了我国汽车检测技术的新趋势,指出今后汽车检测和诊断技术发展的重点应是增加和完善监控预测功能,将汽车的检测逐步扩展到系统状态的预测,这样能科学地决定汽车各总成以至整车的合理使用寿命,这对提高汽车运行的经济性和可靠性具有重要的意义。     

电子车牌识别系统的开发及应用前景分析

对电子车牌识别系统的技术开发和应用前景作了阐述,并对其在各相关领域中的应用进行了介绍和分析。     

氢燃料内燃机技术现状与发展展望

介绍了氢气及氢燃料内燃机的特点及氢燃料内燃机的技术现状。通过对比分析指出氢燃料内燃机既可以采用清洁可再生能源,又可以充分利用现有的庞大工业体系,是实现氢气经济的现实途径。     

国外钢板在轿车发展中的作用

本文从法规限制，市场需求和生产制造等方面评述了轿车工业面临的压力，论述了钢板用于制造轿车壳体的特点，根据轿车材料的选择原则，无论是近期还是未来，钢板仍将是轿车壳体的主要材料。针对轿车壳体的应用，简述了薄钢板，镀层钢板和复合夹层减振钢槔的现状和发展趋势。     

二甲醚汽车的研究现状及发展前景

二甲醚（DME）具有良好的燃烧性能,可以替代柴油用作清洁的汽车燃料。二甲醚汽车凭借其超低排放的优势,将得到更广泛的应用。文章介绍了二甲醚的物理化学性质、来源以及二甲醚在汽车发动机上的应用。同时指出二甲醚的蒸发压力过高、热值较低、粘度过低等一系列问题以及改进方法和发展方向。指出二甲醚作为替代燃料应用于汽车领域具有很大的优势,应该得到国家相关部门的技术及资金支持。     

基于模型的现代汽车电子系统开发和测试

基于模型的汽车电子系统开发的核心是利用计算机仿真技术建立一个虚拟的汽车电子系统开发平台,该虚拟平台的开发包括模型开发和测试方法开发.针对各电控单元的性能指标可开发其仿真模型,程序代码由仿真模型自动转换产生.以汽车仪表盘的测试为例,对整个测试过程做了介绍.     

车用玻璃钢复合材料的应用

汽车节能、环保及安全既是国际汽车技术的发展方向,也是我国汽车产业政策的要求,玻璃钢复合材料是汽车工业发展的理想材料。文章介绍了车用玻璃钢复合材料的性能和国内外玻璃钢复合材料在汽车上的应用状况,指出玻璃钢复合材料应在降低成本和扩大应用领域等3个方面发展,使玻璃铜复合材料随着新车型的不断涌现,得到更为广泛地应用。     

Adoption intentions for micro-mobility – Insights from electric scooter sharing in Taiwan

Micro-mobility may alleviate a number of challenges facing big cities today, and offer a pathway toward more sustainable urban transportation. This research investigates what factors influence university students’ intention to use an electric scooter sharing service. A theoretical framework adapting the theory of planned behaviour was used. Survey responses from 471 university students in Taiwan were collected. Data were analysed using factor analysis and structural equation modelling. Respondents with different levels of usage intention and in different stages of behavioural change display distinct reasoning patterns. Lack of perceived compatibility with personal values, mobility needs and life-style particularly drives students with low usage intention and pre-contemplators, who show signs of “green hypocrisy”. Awareness-knowledge about the sharing system and environmental values influence the formation of usage intention in indirect ways. This study is intended to be a reference for subsequent conceptual and empirical work on e-scooter sharing in particular, and shared mobility with other types of powered two-wheelers.     

Effects of the polycentric spatial structures of Chinese city regions on CO2 concentrations

The environmental sustainability of polycentric spatial structures in urban planning must be evaluated to ensure the sustainable development of city regions. Given the mixed conclusions of previous studies, as well as the lack of information on reliable methods of assessment and quantifiable mechanisms, a three-year dataset for prefecture-level and above city regions in China and spatial econometric models were used to examine the relationship between regional polycentricity and CO₂ concentrations. After robust testing, we confirmed that polycentric structures decrease the mean CO₂ concentrations of city regions, significantly reducing CO₂ concentrations in primary city centers and mildly increasing those in city subcenters. Further quantitative analyses of the mechanisms underlying these patterns revealed that the CO₂-reduction effect of polycentric structures is due to the balancing of reductions in commuting duration, transference of industrial CO₂ to neighboring areas, and an increase in household CO₂ emissions.     

国家物流枢纽体系下多式联运物流园区开发模式研究

近年来,国家积极部署推进运输结构调整,大力发展多式联运,统筹推进国家物流枢纽布局建设,多式联运物流园区正迎来前所未有的建设发展机遇。但我国多式联运尚处于发展初级阶段,多式联运物流园区尚未形成一整套完整的全链条开发模式。通过梳理该类园区的主要类型、投资建设主体及建设模式,结合当前国家物流枢纽建设要求,提出国家物流枢纽体系下多式联运物流园区的开发趋势,为社会主体参与园区开发提供方向指引。