Ei is an index of engineering technology, and it is called the three international core retrieval systems together with ISTP and sci. Ei periodical belongs to the international core periodical, and its influence in the world is second only to SCI. The core of Peking University belongs to the domestic core database, and its influence is slightly inferior to ei journals, but ei and Peking University core journals involve different fields.

The core journals of Peking University belong to the journals with relatively high academic level in China, second only to the core journals of Nantah, and the papers of the core journals of Peking University play a key role in domestic evaluation, promotion and assessment. Ei journals have a certain influence both at home and abroad, and choosing ei journals to publish papers is a good choice to enhance its international influence.

Ei retrieval can be divided into conference retrieval and periodical retrieval. If compared with periodical retrieval, it may not be as good as the core periodicals of Peking University, but if it is some ordinary ei conference papers, the level of the core periodicals of Peking University is higher than that of ei conference.

Ei periodical

Generally speaking, the academic level of ei periodicals is higher than that of core periodicals of Peking University. However, the situation of each author is different, so it is enough to choose a journal that meets the actual requirements. Whether ei journals or core journals of Peking University are difficult, it is necessary to understand the requirements and make preparations in advance before publishing papers.