1Rectangular Signal’s Decomposition and Composition Based on MATLAB and RZ8664SHANG Li, ZHANG Pei, HUANG Yan13-192The Application of Full Adder in the Logical DesignTANG Min-li, WU Heng-yu20-223Research and Practice of an Optimization Method Based on FDD LTE NetworkZHOU Yan, MEI Li-xin23-274Research on Path Optimization Based on Improved Adaptive Genetic AlgorithmXIAO Zi-qian, CHEN Jing-you, WANG Rui-qing28-305The Analysis and Implementation of Data Recovery Technology Based on the Signature of JPEG FilesYUAN Hai-feng, FAN Xiao-he31-356Study of the Autonomous Learning Platform Based on WeChatFENG Li36-397FX Portfolio Optimization Risk Management Using Copula-VaR ModelLI Peng-ju40-458Research on the Factors Inlfuencing Inter-organizational Knowledge Flows Based on Social NetworksZHANG Jiang-fu46-50,879A Mathematical Model of Pig Farm ManagementWANG Qing51-5310A Stochastic Model on Predator-prey System of Two Species with Ratio and Time Delay DependenceSUN Jie54-57,6611On Innovating School-running Mode to Meet Occupational Needs:A Case Study of Shanxi Police Vocational CollegeXU Wen-hai59-6212Relfection on the Career Guidance of Vocational Colleges Under the New NormalLIU Guo-yin63-6613Investigation and Analysis of Innovation and Entrepreneurship Training in Vocational CollegesCAO Jing67-7214The Frontiers and Prospect of the Reform of Ideological and Political Theory Course in Higher SchoolsLIU Ya-xian, XU Jin73-7815Tentative Research into the Teaching Reform of Construction Engineering Mechanics in Vocational CollegesCHEN Zai-tie79-8116Teaching Reform of Work-Process-oriented Practical Training CoursesWANG Feng, DING Jin-lin82-8417Exploration of the Teaching Reform for SCM Technology Course Based on Flipped ClassroomCAI Li-sha, WU Heng-yu85-8718A Survey of Public Fitness Services for Suzhou ResidentsHUANG Chen-xi, YIN Xiao-xia, WU Qin88-92