1Research on the Energy Trade Network Between China and the Five Nations in Central Asia:A Case Study of Social NetworkYUAN Pei, LIU Ming-hui2-72Rectangular Signal’s Decomposition and Composition Based on MATLAB and RZ8664SHANG Li, ZHANG Pei, HUANG Yan13-193The Application of Full Adder in the Logical DesignTANG Min-li, WU Heng-yu20-224Research and Practice of an Optimization Method Based on FDD LTE NetworkZHOU Yan, MEI Li-xin23-275Research on Path Optimization Based on Improved Adaptive Genetic AlgorithmXIAO Zi-qian, CHEN Jing-you, WANG Rui-qing28-306The Analysis and Implementation of Data Recovery Technology Based on the Signature of JPEG FilesYUAN Hai-feng, FAN Xiao-he31-357Study of the Autonomous Learning Platform Based on WeChatFENG Li36-398FX Portfolio Optimization Risk Management Using Copula-VaR ModelLI Peng-ju40-459Research on the Factors Inlfuencing Inter-organizational Knowledge Flows Based on Social NetworksZHANG Jiang-fu46-50,8710A Mathematical Model of Pig Farm ManagementWANG Qing51-5311A Stochastic Model on Predator-prey System of Two Species with Ratio and Time Delay DependenceSUN Jie54-57,6612On Innovating School-running Mode to Meet Occupational Needs:A Case Study of Shanxi Police Vocational CollegeXU Wen-hai59-6213Relfection on the Career Guidance of Vocational Colleges Under the New NormalLIU Guo-yin63-6614Investigation and Analysis of Innovation and Entrepreneurship Training in Vocational CollegesCAO Jing67-7215The Frontiers and Prospect of the Reform of Ideological and Political Theory Course in Higher SchoolsLIU Ya-xian, XU Jin73-7816Tentative Research into the Teaching Reform of Construction Engineering Mechanics in Vocational CollegesCHEN Zai-tie79-8117Teaching Reform of Work-Process-oriented Practical Training CoursesWANG Feng, DING Jin-lin82-8418Exploration of the Teaching Reform for SCM Technology Course Based on Flipped ClassroomCAI Li-sha, WU Heng-yu85-8719A Survey of Public Fitness Services for Suzhou ResidentsHUANG Chen-xi, YIN Xiao-xia, WU Qin88-92 