Implementation of Abstract MAC Layer Under Jamming Development of green urbanization under the guidance of deep ecology Efficient Publication of Distributed and Overlapping Graph Data Under Differential Privacy A Comparative Study of Land Economy under Different Ownerships in China Construction of pastoral complex in Guizhou under the background of rural revitalization A New Method of Portfolio Optimization Under Cumulative Prospect Theory Construction of building energy conservation incentive policies under government regulation: Based on the subjects' behavior analysis Game analysis of control riGht of state-owned shares under the backGround of the mixed ownership Simulated Effects of U.S. Withdrawal from Paris Agreement under Four Scenarios Coordinated development of Yunnan's frontier culture and economy under the regional economic integration pattern