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Polycentric Development in USA Metropolitan Areas:Measuring Polycentrality and its Transportation Im
[会议论文] 作者:杨家文;,
来源:“产业集群、区域创新与区域治理”学术研讨会 年份:2010
This research revisits the debate on transportation impacts of spatially decentralized development by measuring the formats and extents of polycentric spati...
Polycentric Development in USA Metropolitan Areas:Measuring Polycentrality and its Transportation Im
[会议论文] 作者:杨家文,
来源:中国地理学会,华东师范大学 年份:2010
This research revisits the debate on transportation impacts of spatially decentralized development by measuring the formats and extents of polycentric spatial development in USA metropolitan areas and...
[期刊论文] 作者:彭芬兰,陈斌,周小四,杨家文,,
来源:昆明冶金高等专科学校学报 年份:2010
通过对云南某磷矿擦洗尾矿的粒度组成分析和试验研究,提出了增设二次分级脱泥作业来提高现场磷矿石擦洗工艺回收率的措施。增设二次分级脱泥作业可日产粉精矿(P2O5品位〉25%)24......
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