1. The general rule is that the periodicals in the second district are easier than those in the first district. It will be less difficult to publish periodicals in three districts and four districts, but there are some disputes in China. It is precisely because of the above rigid requirements that some units and universities do not recognize publications below the second district.
2. Therefore, the first area, the second area and the third area of SCI papers refer to the classification of journals in SCI database at different levels according to factors such as impact factors and cited amount, in which the journals in the first area represent the high-level journals with the highest influence, and the journals in the third area are low-level journals.
3. Zone123: The division table of China Academy of Sciences selects academic influence as the division method, and arranges all journals in various disciplines in descending order according to academic influence (3-year average IF), and divides them into four zones in turn, so that the total influence of journals in each zone is the same.
How is ssci divided into 1 zone, zone 2, zone 3 and zone 4?
1. According to the impact factors of various journals, the top 5% is 1, 6% ~ 20% is 2,21%~ 50% is 3, and the rest is 4.
2. The four regions are ranked according to the influence factors from high to low. Journals in the first region have the highest impact factor, the highest academic value and the greatest influence, while those in the fourth region have the lowest impact factor among the four regions.
3. Step 1: Collect all ssci journals, and calculate IF for the impact factors one by one; Step 2: According to the impact factor IF, all journals are divided into four parts according to disciplines from high to low.
4. All journals in 4.SCI are mainly divided according to the level of influencing factors. Q 1 regional journals (top 25%) and Q2 regional journals (26%-50%); Q 1 regional journals (top 5%) and SSCI Q2 regional journals (6%-25%).
5. Area 1. International Journal of Emerging Markets is the core periodical of ssci, ranking first in SSCI region, with the highest level and the highest impact factor. Ssci is the internal classification of periodicals, and ssci is also divided into zone 1, zone 2, zone 3 and zone 4. The gold content and publishing difficulty of the first and second districts are also greater than those of the third and fourth districts.
6.SCI partition is generally divided into four grades, namely QQ3 and Q4. Among them, Q 1 stands for the top 25% journals in this field, Q2 stands for 25%-50%, Q3 stands for 50%-75%, and Q4 stands for 75%- 100%.
How to divide the first, second and third areas of sci?
1. According to the impact factors of various journals, the top 5% is 1, 6% ~ 20% is 2,21%~ 50% is 3, and the rest is 4.
2.SCI is divided into four regions: SCI four regions: journals whose regional impact factor is less than 0.5, accounting for about 15% of the included journals. SCI Zone 3: Journals with regional impact factor of 0.5-5, accounting for about 13% of the number of journals included.
3. There are mainly two divisions about SCI, one is Chinese Academy of Sciences, and the other is Thomson Reuters Division. They all have four departments.
1 What is the sci of Zone 2, Zone 3 and Zone 4?
Therefore, the first zone, the second zone and the third zone of SCI papers refer to the classification of journals into different grades according to factors such as impact factors and cited amount, among which the journals in the first zone represent high-level journals with the highest influence, while the journals in the third zone are low-level journals.
CR2 is an SCI journal of engineering technology in the third district of China Academy of Sciences. The first, second, third and fourth districts are the divisions of sci journals. There are two kinds of sci journals, one is jcr, and the other is Chinese Academy of Sciences. These two divisions are very similar, both of which are divided into four areas, and the criteria of division are also the influencing factors of periodicals.
The first, second, third and fourth districts are the divisions of sci journals. Sci journals have two branches, one is jcr branch and the other is Chinese Academy of Sciences branch. These two zones are very similar, both of which are divided into four zones.
All SCI journals are ranked according to their impact factors, and the top 5% are the first region, the top 20% are the second region, the top 50% are the third region, and the rest are fourth area. Or let's put it this way: Generally, SCI papers are divided into four areas, the first area is the top international journals, the second area is the second, and the third and fourth areas are general SCI journals.
Or let's put it this way: Generally, SCI papers are divided into four areas, the first area is the top international journals, the second area is the second, and the third and fourth areas are general SCI journals.
According to the periodicals in SCI (Science Index) database, the regional classification of SCI papers can be divided into 1 zone, zone 2 and zone 3. This classification is based on the academic reputation and influence of journals.