CCF recommended classification: PR is Grade B; PRL is Class C. Generally speaking, PR is recognized by the industry. After graduating from the doctor's degree, I still have to publish several periodicals such as PR.
Nature of periodical: PR and PRL are a publishing house, but the difference is that PRL was originally designed to publish short and pithy papers, while PR is a complex and long-term paper or article. But gradually PR began to publish short articles.
citation indexes
The full name of SCI is Science Citation Index, which is a world-famous periodical literature retrieval tool published by institute for scientific information (ISI). Its publishing forms include printed periodicals, CD-ROM versions and online databases, as well as online databases on the Internet. SCI contains about 3,500 core journals published all over the world in the fields of mathematics, science, chemistry, agriculture, forestry, medicine, life sciences, astronomy, geography, environment, materials and engineering technology.
The course "College Computer Basis" is the first computer course for undergraduates after entering the university. In recen
Nursing safety is a global research topic, and it is also the focus and core of modern hospital managers. The following is a junior college paper on nurs