Abstract：Scientific knowledge is the cornerstone of technological development and innovation in enterprises,and scientific cooperation is an important way for enterprises to acquire scientific knowledge.The purpose of enterprise cooperation is not only to transfer scientific knowledge to internal enterprise,but more importantly is to transform scientific knowledge into technological innovation.Bridging scientists are the bridge linking the death valley of science with technology and help enterprises reconcile the contradiction between science and technology.By applying social network analysis method,this study analyzes data about papers in biomedical engineering industry for cooperative network of basic research,and obtains the following conclusions:Breadth of external access to scientific knowledge negatively affects technology innovation performance of enterprises;Non-redundancy of external scientific knowledge acquisition positively affects technology innovation performance of enterprises;But the non-redundancy of external scientific knowledge acquisition weakens the negative influence of the breadth of scientific knowledge acquisition on the technological innovation performance of enterprises;The more bridging scientists an enterprise has,the weaker the negative correlation between the breadth of external scientific knowledge acquisition and technological innovation performance is,and the stronger the positive correlation between the non-redundancy of external knowledge acquisition and technological innovation performance is.
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