Operation mode of smart cities: A comparative study A systematic review of a digital twin city: A new pattern of urban governance toward smart cities Access Control and Authorization in Smart Homes: A Survey Software Vulnerabilities Overview:A Descriptive Study A study on fiscal and taxation policies for ecological compensation A study on the design of a hybrid policy for carbon abatement Game analysis of endoGenous force in developinG cooperatives in the villaGe: a case study A compArAtive study of countries‘ responsibilities for cArbon dioxide emission in An open economy A study on ecological operation of web IP industrial chain A Comparative Study of Land Economy under Different Ownerships in China