(22.1)--2.3识别代码英语科技文献阅读.pdf

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1、Identification code Contents1.Definition of identification code2.Several types of Identification code1.Definition of identification code Identification code is a specific code for identifying the particular product.2.Several types of Identification code ISBN ISSN DOI UT ISIISBN(The International Sta

2、ndard Book Number)It is a unique numeric commercial book identifier,assigned to each edition and variation(except reprintings)of a book.The method of assigning an ISBN is nation-based and varies from country to country,often depending on how large the publishing industry is within a country.The ISBN

3、 is 13 digits long if assigned on or after 1 January 2007,and 10 digits long if assigned before 2007.It was divided by connection numbers or spaces,and each group of numbers has a fixed meaning.ISSN(International Standard Serial Number)It is an 8-digit code used to identify newspapers,journals,magaz

4、ines and periodicals of all kinds and on all media-print and electronic.An ISSN identifies all continuing resources,irrespective of their medium.DOI (The Digital Object Unique Identifier)It is a persistent identifier used to uniquely identify objects,which is in wide use to identify academic,profess

5、ional,and government information.Advantages of DOI Unique Everlasting Compatibility Interoperability Dynamic updateCoding specification for DOI Prefix/suffix A book Different chapters A table or picture Website for DOI http:/UT ISI(The Unique Article Identifier)It is the only identifier for an artic

6、le,assigned specifically to one article by ISI(Institute for Scientific Information,now Thomson Reuters),which can be used as the only trace to the article as reference.IDS(Document Solution Number)IDS number uniquely identifies the journal and issue.It is used to order the full text of the article from Document Solution.Thanks!