N is the country code of China, the first two digits are the region code, and the last four digits are the serial numbers of regional serial publications, and the serial numbers of periodicals range from 1000 to 5999. The classification number is separated from the serial number. Periodicals are classified according to the basic categories of China Library Classification (fourth edition).
For example, the serial number of china tropical medicine magazine in Hainan Province is CN46- 1064/R, where 46 is the area code of Hainan Province, 1064 is the serial number of Hainan Journal, and the classification number R indicates that the magazine is a medical journal. According to the actual number of periodicals published in China, the serial numbers of periodicals in other regions except Beijing are between 1000- 1999.
Extended data:
Precautions:
1, be sure to pay attention to only one publication when submitting. If more than one magazine contributes, it will increase employment opportunities, but it will directly affect some things after the publication of the paper. Once a magazine finds that one manuscript is submitted more than one, the contributor may be held accountable.
2. If you choose a core journal to contribute, you need to know what the core journal is like and the industry type is right before the paper is published, and then control the number of words and format of your paper according to the requirements.
3. It is more convenient to submit by email, which is the most common submission method compared with paper submission.
4. Write according to the facts and professional contents, so as to ensure that the submitted papers can pass the examination more easily.
5. The selected publication must be related to the content of the paper. For example, agronomists should choose publications related to agriculture.
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Baidu encyclopedia -ISSN