2015ei journal catalog medical image processing related papers EI journal package ja search

Year
Rapid journal publication
Journal directory
Search
Paper publication
Teacher Zheng
Telephone
Email

Data The documents included in the database cover all engineering fields, of which approximately
are conference documents, and
the language of the documents is English. As for the Chinese journals included, there will be changes every few years.
In 2009, the merger of core databases and non-core databases resulted in a significant reduction in the number of Chinese journals included.
The journal source list was updated again in 2016, and additions and deletions were made to a certain extent.
The key is that the impact factor is at work. The impact factor was proposed by Garfield

and has now become an internationally accepted journal evaluation index
Academic journals The impact factor
refers to the average citation rate of a journal in the past two years
that is, the average number of citations of papers published in the journal in the previous two years in the year of evaluation.
The formula is expressed as
impact factor
the number of citations of papers published in the journal in the previous year
in the year
before the journal
/>The total number of papers published during the year. From its definition, it can be seen that the
determining factors of the impact factor
are respectively the time
year
the total number of papers
the total number of papers published by the journal in consecutive years
br/>Number of citations
The total number of times the above paper was cited in year
. The impact factor is a relative quantitative index
It is generally believed that it can better reflect the real and objective situation of the journal being used
It can evaluate various academic journals fairly
Usually the greater the impact factor,
The academic influence and role of the journal will also be greater.
The factors that determine the size of the impact factor generally include the following four aspects
The first is the paper factor
The publication time lag of the paper, the length of the paper, type, number of collaborators, etc. will all affect the level of the impact factor,< br/>The second factor is the journal factor
The issue type of the journal, the page number, the number of papers published in the issue, etc. will all affect the size of the impact factor
In the calculation of the impact factor
The number of published papers only includes the brief summary of the paper. and reviews
However, comments and letters are not counted
so if such text takes up a lot of space, it will affect the impact factor. The third is subject factors
The number of journals in different disciplines, the average number of references, the citation half-life, etc. will all affect the level of the impact factor
The fourth is the retrieval system
Now there are many academic journals at home and abroad
Retrieval systems
Main foreign retrieval systems include
American "Science Citation Index"
British "Scientific Literature"
Germany "Mathematical Abstracts"
Russian "Abstract Magazine"< br/>Japan's "Scientific and Technical Literature Express"
etc.
The important domestic retrieval systems mainly include
National Newspaper and Periodical Index, "China Mathematical Abstracts", "China Inorganic Analytical Chemistry Abstracts", "Chinese Academic Journal
CD version
》Wanfang Data digital journal group, etc. Since the composition of the journal groups included in the retrieval system is quite different
therefore the calculated impact factor values are quite different
therefore
the same publication has significantly different impact factors in different retrieval systems .
The requirements for domestic professional title evaluation or postgraduate graduation are becoming more and more stringent. It is required to publish
retrieval journal papers. Many domestic scholars need to submit their own articles to
journal magazines
Gas Field Development
Low permeability
Optimization practice of injection and production parameters for horizontal well development in tight oil reservoirs
Taking Changqing Oilfield in Ordos Basin as an example
Three-dimensional geological modeling of fluvial tight sandstone gas reservoirs
Testing method for gas-water phase permeability curve in high-temperature and high-pressure tight sandstone reservoirs
Solubility and expansion effect of carbon oxide in chain alkanes
Opportunities are precious because someone knows how to grasp them. If you are If you have any questions about graduation, professional title evaluation, etc., please contact me.
Teacher Zheng
Phone
Email