Defence Science Journal from 2007 to 2011: a Bibliometric Study

Bibliometrics is the study dealing with written communication used the statistical measurement of the published article. Bibliometrics studies are on the subject of interdisciplinary and major subject in nature of the science and identify the pattern of publication, authorship and citation analysis. This paper is mainly study about Defence Science Journal publications of articles from the period of study 2007 to 2011 only five years. Totally 410 articles published from prescribed periods also described about author wise, year wise, pagination wise of the articles of this journal.  


Introduction
In 1969 during the term used "Bibliometrics" by Pritchard. The term "metrics" used in different names Bibliometric, Scientometric, Librametry, Webometric and Informetrics. The defined the statistical methods of the literature (Cole and Eales). The Hulme used the term "Statistical Bibliography" in 1923. "Librametry" is the coined term by Ranganathan (Ranganathan, 1948). It uses the services of librarianship. The Social Science Citation Index, the Science Citation Index or the Arts and Humanities Citation Index using the Bibliometric and Scientometric studies.
Bibliometrics is the study dealing with written communication used the statistical measurement of the published article. Bibliometrics studies are on the subject of interdisciplinary and major subject in nature of the science and identify the pattern of publication, authorship and citation analysis. It is the purpose of quantitative analysis of science and technology performance, cognitive and organizational structure. The use of Research and Development of productivity between two competing technologies using the scientific research of bibliometric study.

About Defence Science Journal
The Defence Science Journal is started the journal for the year 1949 and peer-reviewed. It is a Bi-Monthly, multidisciplinary research journal in the area covered by Aeronautics, Armaments, combat vehicles and engineering, biomedical sciences, computer sciences, electronics, material sciences, missiles and naval systems.It is indexed by Science Citation Index Expanded, Journal Citation Report/Science Edition, Cambridge Scientific Abstracts, Chemical Abstracts, Compendex, Scopus and SCImago etc.

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Lotka's law defined as the scientific productivity and frequency of publication by authors.  Bradford's law notedof scatter and investigate the number of core journals.  Zipf's law as a result of the word occurrence and the frequency of words within selected journal publication.

Definitions of Bibliometrics
 Wikipedia: It is a written analysis using the statistical analysis for publication of the books or articles.  Oxford dictionary: The applied to statistical analysis of books, articles, or other publications.

Objective of the Study
The study framed the following as below:

Limitations
Data were collected from the Defence Science Journal. Data analysis was restricted to articles published from 2007-2011.The present study covers Articles, Reviews, conference papers and Editorials only.

Title and Author Details
The data were collected from Defence Science Journal,from January 2007 to December 2011, this data which give details for five years. Additionally, it covers the records downloaded from the database and analyzed by Microsoft Excel.Data collected through database were analyzed by using different conventional Statistical Tools like tables, percentages, average etc. It is revealed that production of defence science journal is further into five year blocks. Each block year is formed with five consecutive years and the same is shown from       Table 5 Indicates that the authorship patterns of the articles are in the year 2010. Most of the articles (73.50%) are collaborative in nature. Single authors publish (26.50%) of the articles over a period of 2010 year. Even in authorship pattern nature 23.52 % belongs to two authors' contribution.  Table 6 Indicates that the authorship patterns of the articles are in the year 2011. Most of the articles (87.50%) are collaborative in nature. Single authors publish (12.50%) of the articles over a period of 2011 year. Even in authorship pattern nature 31.25 % belongs to two authors' contribution. Table 7 shows that growth of total publication pages are 3580 for the span of 5 years from 2007 to 2011. It is observed that there is an increasing and decreasing trend in the quantum of publication pages. It is deduced that from the above discussion that the growth rate of publication pages has fluctuations over issues.

Findings and Conclusion
The