What is the difference between SCI and EI Which is better?

First, the nature is different.

1. SCI, that is, Science Citation Index, the full name of English is Science Citation Index, which is a world-famous journal literature retrieval tool published by the Institute of Scientific Information of the United States. The search objects are mainly natural sciences.

2. EI is the Engineering Index, which does not include basic theoretical research articles. It is a well-known comprehensive search tool for engineering technology published by Engineering Information Corporation of the United States.

Second, the fields involved are different.

1. The content of the journals included in SCI mainly involves basic scientific research such as mathematics, physics, chemistry, agriculture, forestry, medicine, biology, etc.

In the field, the selected publications are in more than 40 countries and more than 50 languages, including the United States, the United Kingdom, the Netherlands, Germany, Russia, France, Japan, Canada, etc., and also include some China (including Hong Kong, Macao and Taiwan).

Publication. 2. The fields involved in the literature included in EI: mechanical engineering, mechanical and electrical engineering, ship engineering, manufacturing technology, etc.; mining, metallurgy, materials engineering, metal materials, non-ferrous metals, ceramics, plastics and polymer engineering, etc.; Civil engineering.

Construction engineering, structural engineering, marine engineering, water conservancy engineering, etc.

3. Creation is different:

1. SCI is developed by the Institute of Scientific Information in Philadelphia, USA.

Founded by the Institute of Scientific Information (ISI) in 1961, it is a citation database founded and published.

2. EI is a large-scale comprehensive search tool with the longest history founded by the Federation of American Societies of Engineers in 1884.

i is a science citation index, which mainly includes articles in the field of science internationally. EI is also biased towards science, but it includes conferences**.

There is also an SSCI in the world, which is a retrieval system that is biased towards liberal arts, and then it was introduced into China and became CSSCI, that is, the core journal of NTU.

About difficulty: All of them are relatively difficult, because SCI, EI and CSSCI are included in different directions, so the difficulty is not scientific. Anyway, it's hard.

About recognition: SCI and EI are international journals, CSSCI is a domestic journal, and the recognition of natural SCI and EI is relatively high, and it would be better if an article could be searched by SCI and EI.

About extra points: many people post articles for extra points evaluation, according to my years of experience, SCI has the most extra points, some units EI and SCI are equal bonus points, some units EI bonus points are slightly lower, and CSSCI bonus points are lower than international journals.

SCI and EI are both authoritative retrieval systems in the international academic community, with different emphasis, SCI for natural sciences and research on methods and principles, and EI for engineering and on the practicality of technology. The two are about the same level, but in terms of importance, SCI is more important.

Different roles: the role of SCI is to conduct scientific statistics and scientific evaluation; The role of the EI is to provide access to the literature in the field of engineering and technology as a comprehensive information retrieval journal.

The difference between EI and SCI is mainly in these three aspects: in terms of content, EI journal is a well-known comprehensive retrieval tool for engineering technology in Yanshan Town, published by Engineering Information Corporation of the United States, which is biased towards engineering applications, while SCI journal.

It is a world-famous journal literature retrieval tool published by the American Institute of Information Research, mainly focusing on theoretical research; In terms of review time, the review time cycle of EI journals is short, and the review cycle of SCI journals is long. In terms of difficulty, SCI journals have higher language requirements than EI journals.

We know that SCI and EI are two of the world's three famous scientific and technical literature retrieval systems, and researchers or graduates can be found in SCI or EIPublish a **, which is enough to rough the corresponding author and get a high evaluation. It is even used to evaluate job titles.

However, the gold content of publishing SCI is higher than that of publishing EI. Therefore, it means that it is more difficult for the author to publish SCI than EI. The status of SCI is the most moderate of the three major literature retrieval systems, and the difficulty of its recruitment is more research and professional, while EI is relatively relaxed.

That is, it is not as easy for authors to publish SCI as it is to publish EI.

In addition, the evaluation criteria are different:

1) EI journal data comes from 5100 engineering journals, conferences** and technical reports, the original literature comes from more than 40 countries, and involves as many as 39 languages, of which 3600 are abstracts. Each issue is accompanied by a subject index and an author index, and an annual volume and an annual index are published each year, with the addition of an index of author affiliations.

2) SCI journals are journal citation reports that ISI elicits on the basis of SCI.

A set of statistics is provided that shows the number of citations, the number of publications, and the average number of citations in scientific journals, and the impact factor for each journal can be calculated in JCR.

The level of the impact factor can reflect the influence of a journal to a certain extent.

Also, in the field, there is a difference between the two.

In general, the level and level of SCI journals is slightly higher than that of EI journals. SCI requires the research to be more standardized, systematic, complete, and innovative. From the point of view of publication, it must be more difficult for SCI, SCI is more comprehensive of any professional ** can be submitted, itself SCI submission is more bright and difficult, the review cycle is also relatively long, to a certain extent, it is more difficult to publish than EI.

EI Journal: It is a comprehensive information retrieval journal for consulting literature in the field of engineering technology, with a bias towards mechanical engineering, mechanical and electrical engineering, ship engineering, manufacturing technology, etc.

SCI journal: Founded by the Institute of Scientific Information of the United States, SCI journal includes the authors, titles, source journals, abstracts, and keywords of the literature, which can not only evaluate the academic value of the article from the perspective of literature citation, but also quickly and conveniently form a reference network for research topics. SCI covers more than 100 disciplines, mainly related to agriculture, biology and environmental science. Engineering Technology and Applied Sciences; Medicine & Life Sciences; Physics and Chemistry; behavioral science, etc.

It includes more than 3,700 core journals published in various disciplines of natural sciences such as mathematics, physics, chemistry, agriculture, forestry, medicine, life sciences, astronomy, geography, environment, materials, engineering and technology, etc. Through its rigorous selection criteria and evaluation process, SCI selects journal sources to cover the world's most important and influential research results.

i is the abbreviation of the engineering index in the United States. EI was founded in 1884 by the Engineering Information CoPublished and distributed.

EI is a comprehensive search tool in the field of engineering technology, including electricity, automatic control, power, machinery, instrumentation, materials science, agriculture, bioengineering, mathematics and physics, medicine, chemical engineering, food, computer, energy, geology, environment and other disciplines.

To put it simply, the core journal is the academic community through a set of scientific methods to track and evaluate the quality of the journal, and based on the theory of information science, the journal is classified and graded, and the most important level is called the core journal.

Core journals should refer to professional core journals, that is, core journals belonging to a certain profession or industry. The criteria for determining the core journal can be summarized as follows: first, the authority of the sponsor, second, the authority of the author of the article, in order to avoid the Matthew effect, but also to look at the third, the citation rate of the article and the half-life of the literature (the index to measure the novelty of the content of the article, the half-life of the general scientific and technological literature is shorter.

2. Whether a document is SCI or EI can be searched and queried in the corresponding SCI and EI databases;

1. SCI and EI are both academic articles, and there is no difference in writing format;

2. Whether a document is SCI or EI can be searched and queried in the corresponding SCI and EI databases;

1. SCI and EI are both academic articles, and there is no difference in writing format;

2. Whether a document is SCI or EI can be searched and queried in the corresponding SCI and EI databases;

1. SCI and EI are both academic articles, and there is no difference in writing format;

2. Whether a document is SCI or EI can be searched and queried in the corresponding SCI and EI databases;

1. SCI and EI are both academic articles, and there is no difference in writing format;

2. Whether a document is SCI or EI can be searched and queried in the corresponding SCI and EI databases;

1. SCI and EI are both academic articles, and there is no difference in writing format;

2. Whether a document is SCI or EI can be searched and queried in the corresponding SCI and EI databases;

4. There is no big difference in the difficulty of writing EI and SCI. For example, some ei miscellaneous ...Well, that's exactly what happened.

LSKYP (station contact ta) seems to be a lot of silver feel that EI is simpler than SCI, EI and SCI are just different in emphasis, EI focuses on engineering, SCI focuses on theory, so the two can't be compared, some EI is still gray and difficult, Yuanboyu (station contact TA) Some EI is still good.

But the EI's influence in the country is getting smaller and smaller.

The reason is that there are too many of them, and many of the worst conferences are included.

So it has become a hodgepodge of fish and dragons, and there are many times more fish than dragons.

At present, some colleges and universities in China require SCI for all disciplines, even engineering, and EI is becoming less and less recognized. There are also general universities that make it clear that EI meetings don't count. Although this overturned a boatload of people with a stick, it was also a last resort.

The differences between EI and SCI are as follows:

1. Founded: SCI was founded by the Institute of Scientific Information in Philadelphia, USA, and is a citation database founded and published by the Institute of Scientific Information (ISI) in 1961; EI is the oldest large-scale comprehensive search tool created by the American Federation of Engineers Societies in 1884.

2. Different roles: the role of SCI is to conduct scientific statistics and scientific evaluation; The role of the EI is to provide access to the literature in the field of engineering and technology as a comprehensive information retrieval journal.

3. Different attributes: SCI is biased towards natural science, biology and medicine, while EI is biased towards mechanical engineering, mechanical and electrical engineering, ship engineering, manufacturing technology, etc.

4. The publication time is different: SCI publishes six issues a year, and now each issue has six volumes: A, B, C, D, E, and F; EI is published once a month.

These are search systems, a database with a lot of **. SCI focuses primarily on theoretical research. SSCI is a database of social science journals.

EI bias engineering applications. Both CSCD and core journals are databases in China. ISTP is a conference database, and all of the above are journals.