In order to ensure the security, stability and long-term availability of journal data, Journal of Zhengzhou University (Engineering Edition) adopts the “Long-term Archiving” service provided by the National Platform of Scientific and Technical Journals，China National Archives of Publications and Culture，National Library of China．The National Platform of Scientific and Technical Journals is synchronized with the journals, provides readers with reading and downloading privileges, and makes the full text of the papers open to the society free of charge, which ensures the long-term security of the data of Journal of Zhengzhou University (Engineering Edition).