The ImpacT of communIcaTIon TechnologIes on socIal sTrucTure——Take The example of smarT cITy Linz-a modern center of economy and a social model city A systematic review of a digital twin city: A new pattern of urban governance toward smart cities Impact of coupling coordination development of port and city environments on urban economic competitiveness:Evidence from the coastal port cities in eastern China Social Sciences in China Smart Data for Digital Humanities Impact of socIal capItal on farmers‘ response to dIfferent polIcIes for controllIng agrIcultural non-poInt source pollutIon Refining the structure and process of social search behavior: An activity theory perspective Profit Constraint, Ownership Structure and Indigenous Innovation The connotation, structure and description model of knowledge unit