v7n3

Problems and Countermeasures of Pollution Prevention and Control in Anshan City	1-9
*Xiaolin Zhu, Huimeng Jia and Shuai Wu*
Design and implementation of enterprise personnel information management system	10-19
*Huadong Wang*
Application of Machine Learning in Wastewater Treatment	20-27
*Boyang Wang, Wenyu Zhang, Quan Du, Sheng Zhong*
Research on load forecasting method of central air conditioning	28-33
*Dan Liu, Xiaogang Wang, Shuchuan Gan*
Application status of computer-aided diagnosis of ADHD	34-40
*Aiwei Lu, Wenyu Zhang*
An improved data cleaning algorithm	41-48
*Jie Fang*
Summary of image encryption technology based on chaos	49-57
*Jiaming Zhao, Ye Tao, Wenyu Zhang*
The reform of mathematical modeling competition in Communication University of Zhejiang	58-64
*Xiaoping Zhang, Min Zhao and Lipu Zhang*

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