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作为战略性新兴产业,新能源汽车的发展需要不断获取和吸收新知识,科研合作为科学知识转移、扩散和共享提供了良好的平台。以2000-2015年新能源汽车领域合作论文作者的国别信息为数据源,从国家层面构建国际新能源汽车科学知识网络,运用社会网络分析方法对2000-2003年、2004-2007年、2008-2011年、2012-2015年4个阶段新能源汽车科学知识网络的拓扑结构、中心性、核心-边缘分布以及凝聚子群进行分析,探讨了科学知识网络时空演变的复杂性。
As a strategic emerging industry, the development of new energy vehicles needs to constantly acquire and absorb new knowledge, and scientific cooperation provides a good platform for the transfer, diffusion and sharing of scientific knowledge. Based on the country information of authors of cooperation papers in the field of new energy vehicles from 2000 to 2015 as the data source, an international new energy automotive scientific knowledge network was constructed from the national level, and the social network analysis method was used to analyze the data of 2000-2003, 2004-2007, 2011, 2012-2015, the topological structure, centrality, core-periphery distribution and cohesive subgroups of the scientific knowledge network of new energy vehicles were analyzed. The complexity of the spatial and temporal evolution of scientific knowledge networks was discussed.