期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
2014~2016年度模具行业“精模奖”项目评定结果公告
1
《电加工与模具》 2016年第4期68-70,共3页
第十六届中国国际模具技术和设备展览会于2016年6月28日至7月1日在上海新国际博览中心举行。展会期间,中国模具工业协会继续开展了两年一度的“精模奖”项目评定活动,并委托中国模协技术委员会组成专家组,对国内参展并申报的模具和模具... 第十六届中国国际模具技术和设备展览会于2016年6月28日至7月1日在上海新国际博览中心举行。展会期间,中国模具工业协会继续开展了两年一度的“精模奖”项目评定活动,并委托中国模协技术委员会组成专家组,对国内参展并申报的模具和模具标准件项目进行了技术水平评定,专家组由李德群院士领衔的来自国内相关学科院校、科研机构、模具制造骨干企业的专家组成。 展开更多
关键词 中国 评定活动 技术水平 技术委员会 机电科技 全序模 日至 骨干企业 捷豹 级进
在线阅读 下载PDF
Learning taxis' cruising patterns with Ripley's K function
2
作者 宗芳 张慧永 LI Hai-fan 《Journal of Central South University》 SCIE EI CAS CSCD 2015年第9期3677-3682,共6页
Taxi drivers' cruising patterns are learnt with GPS trajectory data collected in Shenzhen, China. By employing Ripley's K function, the impacts of land use and pick-up experience on taxis' cruising behavio... Taxi drivers' cruising patterns are learnt with GPS trajectory data collected in Shenzhen, China. By employing Ripley's K function, the impacts of land use and pick-up experience on taxis' cruising behavior are investigated concerning about both intensity of influence and radius of influence. The results indicate that, in general, taxi drivers tend to learn more from land use characteristics than from pick-up experience. The optimal radius of influence of land use points and previous pick-up points is 14.18 km and 9.93 km, respectively. The findings also show that the high-earning drivers or thorough drivers pay more attention to land use characteristics and tend to cruise in high-density area, while the low-earning drivers or focus drivers prefer to learn more from previous pick-up experience and select the area which is far away from the high-density area. These findings facilitate the development of measures of managing taxi's travel behavior by providing useful insights into taxis' cruising patterns. The results also provide useful advice for taxi drivers to make efficient cruising decision, which will contribute to the improvement of cruising efficiency and the reduction of negative effects. 展开更多
关键词 TAXI cruising patterns land use pick-up points
在线阅读 下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部