Research On The Dynamic Evolution Of Scientific Research Cooperation Network

With the rapid devel opment of modern science and technology,sc ientific and technological innovation activities are increasingly reflected in the form of network cooperation.In the scientific research cooperation network,scientific research institutions and scientific and t echnological workers cooperate with different types of partners according to their needs,expand innovation resources through the network,and greatly improve the innovation efficiency.The scientific research cooperation network between scientists and sci entific research institutions does not alwa ys exist,but needs to go through a stage of gradual formation,development,stability and decline.Previous studies have carried out some exploratory research around the cooperative innovation network,but the research on the dynamic development law of th e scientific research cooperation network is still in its infancy Further analysis and research are needed on the evolution characteristics of state.Based on this,this paper takes the dynamic evolution of scientific research cooperation network of platea u road construction technology as the research object.This paper mainly uses social network analysis and complex network analysis to construct and analyze the co authorship network among the research institutions of plateau road construction technology,a nd studies the static structure and dynamic evolution law of the cooperation network,the main conclusions are as follows :(1)The scientific research cooperation network in plateau road construction technology field has scale-free network characteristics.In the evolution process of the scientific research cooperation network,the new nodes tend to establish contact with the core nodes,which is the main reason for the formation of scale-free network characteristics.(2)Major construction projects will have a direct impact on the scale and form of scientific research cooperation network.With the e volution of scientific research cooperation network over time,the internal connectivity of the network is increasing,while the sparsity of the network has not changed,and the degree of cooperation between nodes does not change with the network size.(3)In the scientific research cooperation network of plateau road construction technology,there are significant factional characteristics.There is a significant industry gap between railway and highway industries,and universities and scientific research i nstitutes are the main brid ges connecting the two professional fields.(4)In the evolution process of scientific research cooperation network in plateau road construction technology field,the importance of design institutes and other production units has gradually been highlighted,and the importance of basic research institutions has gradually declined.