Bibliometric methods have been used to measure scientific progress in many disciplines of science and engineering and are a common research instrument for systematic analysis (Van Raan, 2005). Since Narin et al. (1976) first proposed the concept of "evaluative bibliometrics", many scientists have tried to evaluate the research trend in the publication outputs of countries, research institutes, journals and subject category (Garcia-Rio et al., 2001; Zhou et al., 2007), the citation analysis (Cole, 1989) and the peak year citation per publication (Chuang et al., 2007; Li and Ho, 2008). Bibliometrics refers to research methodology employed in library and information sciences, which utilizes quantitative analysis and statistics methods to describe distribution patterns of articles with a given topic (Almind and Ingwersen, 1997), field (Campanario et. al., 2006), institute (Moed et. al., 1985) or country (Schubert et al., 1989). These methods have been used to investigate research trends of specific fields recently (Vergidis et. al.,2005; Falagas et. al., 2006; Kumari, 2006).
The followings are the key objectives of the present study.
* To measure the research output of the university;
* To identify the most prolific authors during the period;
* To identify the authorship pattern the papers published;
* To identify the journals which were most preferred by the researchers of the university;
* Measure the most cited journals during the period under study;
Applying statistical methods over various aspects of LIS papers from Bangladesh Khan, Ahmed, Munshi, and Akhter (1998) found that there is slow growth in literature productivity during 1966-1997. Mittal, Sharma and Singh (2006) examine 536 papers published on LIS education from 1995 to 2004 and found that the growth of literature was negative. Patra, Bhattacharya, and Verma (2006) found that about 4000 authors published 3781 articles, about 0.94 articles per author. Bakri and Willett (2008) in their study to Malaysian Journal of Library and Information Science during 2001-2006 found that a complete set of 161 articles attracted a total of 87 citation, 52 of which were self-citations. In a bibliometric analysis of Pakistan Journal of Library and Information Science Warraich and Ahmed (2011) studied a total of 111 papers which were published during 1995 to 2010, and found that maximum single authored papers were contributed and majority of authors geographically affiliated to Pakistan.
Verma and Tamrakar (2007) in their study of Analysis of Contributions to Defence Science Journal found that out of 524 papers 149 (28.43 per cent) were submitted by two authors and High Energy Materials Research Laboratory was the most prolific institution with having 8.96 per cent contributions. In a bibliometric analysis of DESIDOC Journal of Library and Information Technology during 2001- 2010, Kumar and Moorthy (2011) found that out of 271 papers 167 papers were published in 6-10 page range and 40.31 per cent citations comprised journals, followed by books with 20.68 per cent. In a bibliometric analysis of diarrhoeal disease research from 1979 to 2009, Khatun and Ahmed found that a total of 1489 authors produced 711 papers with an average of 2.09 authors per paper. Maximum number of (149) papers were published during 2007-2009.
The present study covers the research publication of various departments of Sambalpur University which were indexed in Scopus (officially known as Sciverse Scopus) during 2008 to 2012. For retrieval of information "Sambalpur University" and "India" were the keywords used as authors affiliation or address and "2008" to "2012" selected as the time span of study. Further, the result was refined to article only. Finally, 301 research papers in different disciplines of science and technology retrieved matched with Sambalpur University as author's affiliation or address. Aspect referring to year wise publication, authorship pattern, favoured journals, most prolific contributor, institution/ organization, geographical distribution etc. were analyzed with MS-Excel.
Analysis and discussion
Annual distribution of publication
Sambalpur University published a total of 301 papers during the period under study which are indexed in Scopus in different fields of science and technology as listed in Table-1, which shows that maximum number of papers published in 2012 i.e. 83 (27.58%) papers, followed by 2011 (26.91%), 2009 (17.94%), 2010 (14.95%) and 2008 (12.62%) respectively. Further, it shows a negative average growth rate in 2010, and the average annual growth rate percent is 11.29.
Period-wise authorship pattern of publication
The period-wise authorship pattern of publication is listed in Table-2, which shows out of 301 papers maximum of 94 (31.23%) contributions have been contributed by three authors, followed by four authors (22.92%), two authors (21.93%) respectively. Again it shows that only 17 (5.65%) papers have been contributed by eight or more than eight authors.
A total of 554 authors along with 598 authors affiliated to Sambalpur university contributed total 301 papers with 1.99 average authors per paper and 0.51 productivity per author (Table-3). Further, it shows that in 2012 maximum number of 83 papers published and maximum number of 187 authors were affiliated to Sambalpur University.