INDIAN JOURNAL OF RADIO AND SPACE PHYSICS : A SCIENTOMETRIC ANALYSIS

VSRD International Journal of Library & Information Science, Vol. I Issue I December 2015 / 21 e-issn: VSRD International Journals: www.vsrdjournals.com RESEARCH PAPER INDIAN JOURNAL OF RADIO AND SPACE PHYSICS : A SCIENTOMETRIC ANALYSIS R. Santha kumar Librarian, S K R Engineering College, Chennai, Tamil Nadu, INDIA. Corresponding Email ID: santham74@yahoo.co.in ABSTRACT A scientometric analysis of the journal Indian Journal of Radio and Space Physics for the period 2005-2014 has been carried out. Present analysis of said journal, 497 articles was published during the study period. The highest number (62) of articles was published in year 2007 and lowest () in 2014. After analysing 114 citations, on average 22.82 citations have been assigned to each article. The authorship pattern reveals that co-authored papers accounted for 87 % of total output. The average value of collaboration coefficient for Indian journal of radio and space physics journal is 0.56. The year wise degree of collaboration falls between 0.77 and 0.9. Researchers from 28 different countries across the world have contributed research articles to the journal, the maximum number (416) of articles were produced by India. International collaboration was involved in producing 8 articles. Out of 8 articles, 0 articles were produced by India in collaboration with other countries. A total of 1714 contributors from 246 individual institutions were involved in publication of articles. It is found that National Physical Laboratory, New Delhi, India contributed highest number of 28 articles. Out of ranked list of 17 affiliations which produced more than 11 articles, 15 institutions were from India and each 1 from Brazil and Nigeria. It is proved that India is one of the major contributors of the journal in every aspect. Keywords: Scientometric Analysis, Authorship Pattern, Indian Journal of Radio and Space Physics, Co-Authorship Index and Collaboration Coefficient. 1. INTRODUCTION The Indian Journal of Radio and Space Physics is published by National Institute of Science Communication and Information Resources (NISCAIR), New Delhi, India. IJRSP is a bimonthly primary journal, is devoted to the publication of original scientific research results in the form of full papers and short communications in different areas of Radio and Space Sciences, such as Radio Frequency Standards and Measurements, Radio Wave Propagation through Non-ionized Media, Chemistry and Meteorology of Troposphere and Stratosphere, Winds and Motions in Lower, Middle and Upper Atmospheres, Stratosphere-Mesosphere Coupling, Ionosphere Propagation, Magnetosphere, Ionosphere-Magnetosphere Coupling, Physics and Chemistry of Ionosphere, Solar- Terrestrial Relationship, Radio and Radar Astronomy and Planetary and Interplanetary Space Physics. It also covers electromagnetic metrology, fields and waves, signals and systems, electronic and optical devices and applications, electromagnetic noise and interference, waves in plasmas and electromagnetic in biology and medicine. This journal is abstracted and current awareness services in Chemical Abstracts (USA), Electrical and Electronics Abstracts [INSPEC (UK)], Indian Science Abstracts (India), Meteorological and Geoastrophysical Abstracts (USA), Physics Briefs (Germany), Referativnyi Zhurnal (Russia), and Cambridge Science Abstracts (USA). Journal s impact factor was 0.580 in the year 201. 2. LITERATURE REVIEW Several scientometric studies have been undertaken by various researchers across the globe to understand the publication distribution pattern of a particular journal. Nageswaro Rao [1] et al. studied Bibliometric analysis of the Journal of Propulsion and Power out of 4047 articles during 1985 to 201 found that highest numbers of 194 articles were published in 1992 and lowest numbers of 81 articles were published in 1981. Authorship pattern showed that 10 were produced by two authors and 1098 by three authors. It is found that 1205 different were involved in publication of articles. Purdue University contributed highest number of 16 articles. Country wise collaborative research productivity of articles reveals that maximum numbers of 760 articles were produced in one country. Fleeter, S from Purdue University, USA has authored and co authored highest number of 54 articles. A scientometric analysis of 657 articles published in Indian Journal of Radio and Space Physics has done by J K Singh [2] during by the year 2006 to 2010. In his study he showed that most of the papers (9.46%) were contributed jointly where as 6.54% papers were contributed by single authors. Institutions wise contributions observed that Council of Scientific and Industrial Research topped with 54 articles followed by IIT with 50 articles. The most prolific author was Kumar, R who topped with 21 articles followed by Kumar, A with 20 articles. Overall average citation per paper was 1.87 whereas overall mean page length of all the paper was 5.7. Kulkarni [] et al. carried out a bibliometric analysis on Indian Journal of Pharmaceutical Education Research from 1996 to 2006. The study found that journals are the predominant citation source followed by books and majority of the scientists

R. Santha kumar VSRDIJLIS, Vol. I (I) December 2015 / 22 preferred to publish research papers in multi authorship and there is considerable time lag in publication of articles from the date of papers. Kamal Lochan Jena [4] studied the bibliometric analysis of the journal Indian Journal of Fibre and Textile Research, 1996-2004. The study trend of publications such as the year wise distribution of articles, bibliographical distribution of citations, authorship pattern, citation pattern, average length of articles, number of tables and figures used, geographical distribution authors and subject analysis have been analysed. Mamdapur [5] et al. carried out a bibliometric study of the Journal Baltic Astronomy from 2000 to 2008. In their study, distribution of contributions, authorship pattern of contributions, distributions references, analysis of length of papers have been analysed. The study also found that the degree of collaboration for the period 2000-2008 was 0.89, authors from USA have contributed maximum number of papers compared to other countries and India stood 21 st in the ranked list. Dixit S and Katare [6] highlights the research trend of cotton scientists by studying the articles published in the Journal of the Indian Society for Cotton Improvement for the period 1995-2004. Patterns related to authorship, bibliographic forms, citations, contributing institutions and subjects were analysed. Nattar [7], analysed the Indian Journal of Physics published during 2004 2008, which revealed that highest number of papers written by co-authors and the contributions of the journal from India are slightly more than those from the other countries. The growth and popularity of this journal is found to show an upward trend. Authorship pattern observed that two authored articles were 275, followed by 221 three authored articles and 16 four authored articles etc. Out of 1481 citations, 8851 were journals and 0 were books. Geographical distribution observed that 91.64% of contributions were India, 1.5% contributions were from Bangladesh, etc. Singh, J K [8] studied on Indian Journal of Pure and Applied Physics out of 657 articles during 2006 to 2010 revealed that highest numbers of 144 articles were published in 2007 and lowest of 11 were published in 2009. The study observed that 9.46 % articles were coauthored and 6.54 % were single authored publications. Institutions wise contributions observed that CSIR topped with 54 articles followed by IIT with 50 articles. The most prolific author was R. Kumar who topped with 21 articles followed by A. Kumar with 20 articles. Anil kumar [9] et.al, analysed the Pramana Journal of Physics published during the year 1982-2006, it is found that there is an upward trend in number of collaborated papers. Authors from University of Delhi, Delhi; Bhabha Atomic Research Centre, Mumbai, India; Physical Research Laboratory, Ahmadabad, India; Institute of Physics, Bhubaneswar, India; Indian Institute of Science, Bangalore, India; Tata Institute of Fundamental Research, Mumbai, India etc. contributed most number of articles. One fourth of the total articles published in Pramana are from outside India, the host country of the journal and the numbers of articles submitting from other countries are increased. The average number of references per article is 21.85.. OBJECTIVES OF STUDY The present study has been undertaken with the objective of analyzing the following aspects: Publication output Authorship pattern Country wise distribution of articles Country wise collaborative research productivity Highly prolific authors Highly productive institutes 4. METHODOLOGY The bibliographic records for the analysis are limited to the articles of Indian Journal of Radio and Space Physics published during 2005-2014 was retrieved from its home website. A total number of 60 issues from 10 volumes starting from 2005 to 2014 were analysed by recording bibliographic data. All the required data such as number of articles, number of authors contributions in each volume, affiliations of the authors and their geographical locations both at national and international levels as well as the number of citations and pages were recorded for making observations. The data retrieved was put to excel format for better analysis and understanding to achieve the objectives. 5. RESULTS AND DISCUSSIONS Year wise publication output and citations Table 1: Year Wise Publication Output and Citations Year No. of Articles per No. of Citations per No. of Pages per Articles Volume Citations Articles Pages Articles 2005 59 9.8 1122 19.02 67 6.22 2006 55 9.17 975 17.7 8 6.96 2007 62 10. 1479 2.85 496 8 2008 52 8.67 1605 0.86 402 7.7 2009 42 7 1081 25.74 12 7.4 2010 50 8. 96 18.72 15 6. 2011 40 6.67 882 22.05 29 7.2 2012 58 9.67 188 2.9 470 8.10 201 46 7.67 951 20.67 69 8.02 2014 5.5 924 28 17 9.61 Total 497 8. 114 22.82 724 7.49

R. Santha kumar VSRDIJLIS, Vol. I (I) December 2015 / 2 Year wise publication output and citations 1800 1600 1400 1200 1000 800 600 400 200 0 2005 2006 2007 2008 2009 2010 2011 2012 201 2014 Articles Citations Pages Fig. 1: Year wise Publication Output and Citations Table 1 presents the year wise distribution of articles, average number of articles per volume, number of citations and average number of citations per articles. A total of 497 articles were published during the study period 2005 to 2014.These articles had 11,4 citations with total pages of 724. The highest numbers of articles (62) were in 2007, and these articles have received the 1479 citations. Regarding the lowest numbers of articles was in 2014 and these articles have received the 924 citations. This is because the issue no 4 & 5 merged in to one issue in this year. The highest numbers of citations (1605) were received in 2008. The average number of articles were published per issue was 8. and the number of citations per articles during the period was 22.82. The highest number of average citations per article (0.86) was in 2008. A fluctuation trend of publications was observed in this study. The total pages of the articles and the average length of the articles are shown in the table 1. The table shows that the average length of articles is 7.49. Further, it has been observed that the average length of the articles varied from a minimum of 6.22 pages to a maximum of 9.61 pages. The lengthy article having 2 pages being the one contributed by Bose, S K titled Jovian decametricc radio emission: An overview of the planetary radio astronomical observations which was published in 2008. Authorship Pattern of Publications: Table 2: Authorship Pattern of Publications Year Single CAI Two CAI Multi CAI Mega 2005 5 67 22 152 20 82 12 2006 5 72 19 141 20 88 11 2007 14 178 10 66 2 90 15 2008 46 16 125 20 9 1 2009 56 10 97 22 126 7 2010 5 79 15 122 22 106 8 2011 9 178 6 61 17 10 8 2012 12 16 1 91 21 87 12 201 51 6 5 24 126 1 2014 4 96 5 62 17 124 7 Total 6 122 206 106 CAI Total CC 95 59 0.57 94 55 0.57 11 62 0.49 117 52 0.60 78 42 0.60 75 50 0.56 94 40 0.50 97 58 0.51 1 46 0.61 99 0.58 497 0.56 CAI Co -Authorship Index, CC Collaboration Coefficient

R. Santha kumar VSRDIJLIS, Vol. I (I) December 2015 / 24 Authorship Pattern of Publications 0 20 10 0 2005 2006 2007 2008 2009 2010 2011 2012 201 2014 Single Two Multi Mega Fig. 2: Authorship Pattern of Publications Table 2 shows authorship pattern of the articles published during the period 2005 to 2014. Out of 497 articles, the maximum number of articles 206 (41.4%) have been contributed by multi authors (&4). This is followed by two authors with 122 articles (24.5%) and 106 (21.%) articles were produced by mega authors (more than 4 authors). It is observed that 1714 authors have contributed 497 articles with an average of 0.29 articles per author. Table 4 also shows that out of 497 articles single author contributed 6 articles (12.7 %) while the rest 44 articles (87. %) contributed by joint authors. It is clear from the above analysiss that percentage of single authored articles is less than that of joint authored articles. This is because the journal is multidisciplinary which involves several researchers from different disciplines. For calculating the co-authorship index and collaboration coefficient for authors, countries have been replaced by publication year. For this study, the authors have been classified into publication year vz Single, Two, Multi and Mega authors and the results of Co-authorship index and collaboration coefficient have been presented in the Table 2. It reveals that the result of co authorship index and it is observed that the value of CAI for increasing and decreasing trend in the ten year periods. This implies that the collaborative pattern in Indian journal of radio and space physics journal is mainly characterized by co-authored papers not by single authored papers. The average value of collaboration coefficient for Indian journal of radio and space physics journal is 0.56. The highest value of collaboration coefficient is 0.61 in 201 and lowest 0.49 in 2007. However, the value of collaboration coefficient is showing increasing and decreasing trend in the ten year periods. Authorship Trend Analysis: Year Table : Authorship Trend Analysis Single Authors Multiple Authors Quantum of Quantum of Percentage Percentage Output Output 2005 5 1.01 2006 5 1.01 2007 14 2.82 2008 0.60 2009 0.60 2010 5 1.01 2011 9 1.81 2012 12 2.41 201 0.60 2014 4 0.80 Total 6 12.67 Quantum of Publication Output 54 10.87 59 50 10.06 55 48 9.66 62 49 9.86 52 9 7.85 42 45 9.05 50 1 6.24 40 46 9.25 58 4 8.65 46 29 5.84 44 87. 497 Degree of Collaboration 0.92 0.91 0.77 0.94 0.9 0.90 0.78 0.79 0.9 0.88 0.88

R. Santha kumar VSRDIJLIS, Vol. I (I) December 2015 / 25 Single vs Multiple Authors 70 60 50 40 0 20 10 0 2005 2006 2007 2008 2009 2010 2011 2012 201 2014 Single Multiple authors The Table presents the single and multiple authors productivity pattern on yearly basis. A careful examination of the table reveals that the productivity patterns on the Indian journal of radio and space physics journal is much contributed by the multiple authors than the single author since 2005 to 2014. Thus, from this analysis it can be interpreted that basically the cosmic rays research is much dominated by multiple authors. The Degree of collaboration of authors by year wise is shown in table 4. The extent of degree of collaboration is calculated by year wise has been calculated. Accordingly, the degree of collaboration has been calculated for the years 2005 to 2014. The year wise degree of collaboration falls between 0.77 and 0.9. The Degree of collaboration of publications of the Indian journal of radio and space physics journal is 0.88. This brings out clearly the prevalence of team research in this field. Out of the total publications 87.% of contributions were collaborated with multiple authorship and 12.67% of contributions were collaboration with single authors. Country wise Distribution of Articles: Fig. : Authorship Trend Analysis Table 4: Country wise Distribution of Articles Rank Country No. of Contributions (%) No. of Contributors (%) Percentage of Article Contribution 1 India 416 (76.89 %) 1469 (85.70 %) 81.29 % 2 Nigeria 29 (5.6 %) 66 (.85 %) 4.6 % Brazil 24 (4.44 %) 4 (1.98 %).21 % 4 USA 16 (2.96 %) 27 (1.57 %) 2.26 % 5 Japan 14 (2.59 %) 7 (2.16 %) 2.7 % 6 Taiwan 5 (0.92 %) 15 (0.87 %) 0.89 % 7 China 5 (0.92 %) 14 (0.82 %) 0.87 % 8 UK 5 (0.92 %) 8 (0.47 %) 0.69 % 9 Belgium (0.55 %) 4 (0.2 %) 0.9 % 10 France (0.55 %) (0.17 %) 0.6 % 11 Uganda 2 (0.7 %) 5 (0.29 %) 0. % 12 Italy 2 (0.7 %) 4 (0.2 %) 0.0 % 1 Korea 2 (0.7 %) 2 () 0.24 % 14 Malaysia 1 (0.18 %) 5 (0.29 %) 0.2 % 15 Singapore 1 (0.18 %) 4 (0.2 %) 0.20 % 16 Vietnam 1 (0.18 %) (0.17 %) 0.17 % 17 Bangladesh 1 (0.18 %) 2 () 0.15 % 18 Russia 1 (0.18 %) 2 () 0.15 % 19 Canada 1 (0.18 %) 1 (0.06 %) 20 Finland 1 (0.18 %) 1 (0.06 %) 21 Indonesia 1 (0.18 %) 1 (0.06 %) 22 Iran 1 (0.18 %) 1 (0.06 %) 2 Myanmar 1 (0.18 %) 1 (0.06 %) 24 Netherlands 1 (0.18 %) 1 (0.06 %) 25 Oman 1 (0.18 %) 1 (0.06 %) 26 Saudi Arabia 1 (0.18 %) 1 (0.06 %) 27 Spain 1 (0.18 %) 1 (0.06 %)

R. Santha kumar VSRDIJLIS, Vol. I (I) December 2015 / 26 28 Thailand 1 (0.18 %) 1 (0.06 %) 1600 1400 1200 1000 800 600 400 200 0 India Nigeria Brazil USA Japan Taiwan China UK Belgiu France m Articles 416 29 24 16 14 5 5 5 Authors 1469 66 Fig. 4: Country wise Distributions of Articles Table 4 shows that a total of 1714 contributors from 28 countries took part in producing 497 articles during the study period. Country names have been identified from their affiliations as reflected their respective articles. Hence, it is observed that India contributed 416 articles contributing (76.89 %) to the total contributions, followed by 29 articles by Nigeria contributing (5.6 %), 24 articles by Brazil contributing (4.484 %), 16 articles by USA contributing (2.96 %) and 14 articles by Japan contributing (2.59 %). Five articles each have been contributed from Taiwan, China and UK; three each from Belgium and France and two articles each from Uganda, Italy and Korea, and rest of the countries have contributed one each. Average percentage count of both the columns of contributions and contributors has put India on top as largest contributing country with 81..29 % combined share percentage, followed by Nigeria with 4.6 %, Brazil with.21 %, Japan with 2.267 % and USA with 2.26 %, rest of the contributing countries enjoy share percentage less than 1%. International Collaborative Countries: 4 27 7 15 14 8 4 Table 5: International Collaborative Countries Rank Country No. of Articles in Collaboration with other Countries 1 India 0 2 Japan 1 USA 7 4 Brazil 4 5 Nigeria 6 UK 7 France 8 China 2 9 Belgium 2 10 Taiwan 2 No. of Contributors 87 0 14 14 5 5 7 100 80 60 40 20 0 India Japan USA Brazil Nigeria UK France China Belgium Taiwan Articles Authors Fig. 5: International Collaborative Countries

R. Santha kumar VSRDIJLIS, Vol. I (I) December 2015 / 27 Table 5 gives international collaboration of top 10 countries with the number of collaborated articles and number of contributor among them. In all, there were 2 countries involved in international collaboration and produced 8 articles (16.87 %) internationally collaborated papers. Out of 8 articles, 0 (6.14 %) articles were produced by India in collaboration with other countries, 1 (15.66 %) articles by Japan, 7 (8.2 %) articles by USA, 4 (4.82 %) articles by Brazil and (7.69 %) articles each by Nigeria, UK and France, etc. Distribution of Most Prolific Authors: Table 6: Distribution of Most Prolific Authors Rank Author Authors Affiliation No. of Articles 1 Kane, R P Institution National de Pesquisas Espacias, Brazil 19 2 Birbal Singh R B S College, Agra, India 1 O P N Calla International Centre for Radio Science, Rajasthan, India 10 4 S S De University of Calcutta, India 10 5 B K De Tripura University, India 9 6 H Chandra Physical Research Laboratory, Ahmedabad, India 7 7 P V Hunagund Gulbarga University, Karnataka, India 7 8 R G Rastogi Physical Research Laboratory, Ahmedabad, India 7 9 B Bandyopadhyay University of Calcutta, India 6 10 A Guha University of Calcutta, India 6 11 A K Gwal Barkatullah University, India 6 12 B M Pathan Indian Institute of Geomagnetism, Mumbai, India 6 1 Babau R Vishvakarma Banaras Hindu University, Varanasi, India 6 14 D Bhatnagar University of Rajasthan, India 6 15 Devendra Singh India Meteorological Department, New Delhi, India 6 16 J S Saini University of Rajasthan, India 6 17 K N Iyer Saurashtra University, Gujarat, India 6 18 P M Hadalgi Gulbarga University, Karnataka, India 6 19 S K Adhikari University of Calcutta, India 6 20 S K Dhaka University of Delhi, India 6 21 S N Mulgi Gulbarga University, Karnataka, India 6 22 S R Prabhakaran Nayar University of Kerala, India 6 2 Sanjay Sharma Kohima Science College, Nagaland, India 6 Table 6 presents the top 2 authors who have contributed alone or co-authored along with their affiliations for producing articles in journal during 2005-2014. A total of 1061 authors involved in 1714 times for publishing 497 articles. It is observed that Kane, R P, Instituto National de Pesquisas Espacias, Brazil has producing highest number of articles, i.e. 19 articles, followed by Birbal Singh, R B S College, Agra, India with 1 articles, 10 articles each from O P N Calla, International Centre for Radio Science, Rajasthan, India and S S De, University of Calcutta, India and B K. De, Tripura University, India with 9 articles etc. Out of 2 authors, 22 authors were from India and 1 author from Brazil. This indicates that the major proportion of articles published by Indian authors. Highly Productive Institutes: Table 7: Highly Productive Institutes Rank Author Affiliation Country No. of Articles No. of Contributors 1 National Physical Laboratory, New Delhi India 28 49 2 University of Calcutta, Kolkata India 26 8 Instituto National de Pesquisas Espacias Brazil 22 2 4 Indian Institute of Geomagnetism, Navi Mumbai India 19 4 5 National Atmospheric Research Laboratory, Gadanki India 18 25 6 Banaras Hindu University, Varanasi India 17 4 7 Vikram Sarabhai Space Centre, Trivandrum India 16 46 8 Physical Research Laboratory, Ahmedabad India 15 28 9 University of Kerala, Trivandrum India 14 25 10 Gulbarga University, Karnataka India 1 52 11 Indian Satellite Research Organization, Bangalore India 1 24 12 Sri Venkateswara University, Tirupati India 1 21 1 R B S College, Bichapuri India 1 2 14 International Centre for Radio Science, Jodhpur India 11 40 15 Indian Institute of Tropical Meteorology, Pune India 11 2 16 Indian Institute of Technology, Roorkee India 11 22

R. Santha kumar VSRDIJLIS, Vol. I (I) December 2015 / 28 17 Federal University of Technology Nigeria 11 18 Table 7 presents the top 17 highly productive institutions with total number of articles and contributors from the respective institutions. The distributed data shows a total of 1714 contributors from 246 individual institutions were involved in producing 497 articles during the study period. It is observed that National Physical Laboratory, New Delhi contributed highest articles, i.e 28 contributing (5.6 %) to the total 497 articles, followed by 26 articles by University of Calcutta, Kolkata contributing (5.2 %) and 22 articles by Instituto National de Pesquisas Espacias, Brazil contributing to (4.4 %) and 19 articles by Indian Institute of Geomagnetism, Navi Mumbai, India contributing to (.82 %) etc. The share of these prolific institutions which are in India has about three-fourth of the total output. Table 8: Organization wise Collaborative Research Productivity of Articles S. No. No. of Participating Organizations No. of Articles (%) 1 One organizations 270 (54. %) 2 Two organizations 161 (2.9 %) Three organizations 42 (8.45 %) 4 Four organizations 12 (2.41 %) 5 More than four organizations 12 (2.41 %) Total 497 (99.99 %) Table 8 shows organization wise collaborative research productivity of 497 articles. It is observed that one organizations is involved in producing 270 articles contributing (54. %) to the total articles, followed by two organizations in producing 161 (2.9 %) articles, three organizations in producing 42 (8.45 %) articles, four organizations and more than four organizations are producing each 12 (2.41 %) articles. 6. SUMMARY AND CONCLUSION The study reveals that 497 articles were published in 60 issues of 10 volumes in the Indian Journal of Radio and Space Physics during 2005-2014. The highest numbers of articles were published in year 2007, contributing 62 (12.47 %) and lowest numbers of articles were in the year 2014, contributing (6.64 %) to total number of articles. On average 8 articles per issue and 50 articles per volume approximately. A fluctuation trend of publications was observed in this study. The highest number of citations 1605 (14.15 %) was received in 2008. The average citation per year was 114. The highest average citation per article was 0.86 in 2008. The article contributed by Bose, S K titled Jovian decametric radio emission: An overview of the planetary radio astronomical observations which was published in 2008, received highest number of 195 citations. The length of articles varied from to 2 and average length of articles during the period is 7.49. Further, it has been observed that the average length of the articles varied from a minimum of 6.22 pages to a maximum of 9.61 pages. Maximum number of articles i.e. 206 contributing (41.4 %) to the total number were produced by multi authors (&4), followed by 122 contributing (24.5 %) were produced by two authors, 106 contributing (21. %) were produced by mega authors (more than 4 authors), and 6 contributing (12.7 %) from single author. It is found that more than 87 % articles published in the journal have been published on joint authorship pattern. This is because the journal is multidisciplinary which involves several researchers from different disciplines. The value of co authorship index for increasing and decreasing trend in the ten year periods. This implies that the collaborative pattern in Indian journal of radio and space physics journal is mainly characterized by co-authored papers not by single authored papers. The average value of Collaboration coefficient for Indian journal of radio and space physics journal is 0.56. The highest value of CC is 0.61 in 201 and lowest 0.49 in 2007. However, the value of CC is showing increasing and decreasing trend in the ten year periods. The year wise degree of collaboration falls between 0.77 and 0.9. The Degree of collaboration of publications of the Indian journal of radio and space physics journal is 0.88. Out of the total publications 87.% of contributions were collaborated with multi authorship and 12.67% of contributions were collaboration with single authors. Country wise research productivity of articles, it is observed that India contributed 416 articles contributing (76.89 %) to the total contributions, followed by 29 articles by Nigeria contributing (5.6 %), 24 articles by Brazil contributing (4.44 %), 16 articles by USA contributing (2.96 %) and 14 articles by Japan contributing (2.59 %). Five articles each have been contributed from Taiwan, China and UK; three each from Belgium and France and two articles each from Uganda, Italy and Korea, and rest of the countries have contributed one each. The international collaboration was involved in producing 2 countries. Out of 8 articles, 0 (6.14 %) articles were produced by India in collaboration with other countries, 1 (15.66 %) articles by Japan, 7 (8.2 %) articles by USA, 4 (4.82 %) articles by Brazil and (7.69 %) articles each by Nigeria, UK and France, etc. Among the top 2 most prolific authors, It is observed that Kane, R P, Instituto National de Pesquisas Espacias, Brazil has producing highest number of articles, i.e. 19 articles, followed by Birbal Singh, R B S College, Agra, India with 1 articles, 10 articles each from O P N Calla, International Centre for Radio Science, Rajasthan, India and S S De, University of

R. Santha kumar VSRDIJLIS, Vol. I (I) December 2015 / 29 Calcutta, India and B K. De, Tripura University, India with 9 articles etc. Due to the involvement of multiple authors for producing articles from the same institution, it is observed that 246 institutions involved 882 times for producing 497 articles. National Physical Laboratory, New Delhi contributed highest articles, i.e 28 contributing (5.6 %) to the total 497 articles, followed by 26 articles by University of Calcutta, Kolkata contributing (5.2 %) and 22 articles by Instituto National de Pesquisas Espacias, Brazil contributing to (4.4 %) and 19 articles by Indian Institute of Geomagnetism, Navi Mumbai, India contributing to (.82 %) etc. Out of ranked list of 17 institutions which produced more than 10 articles, fifteen institutions were from India and one each from Brazil and Nigeria. The share of these prolific institutions which are in India has about three-fourth of the total output. The collaborative research productivity of 497 articles by 246 different institutions, It is observed that one organizations is involved in producing 270 articles contributing (54. %) to the total articles, followed by two organizations in producing 161 (2.9 %) articles, three organizations in producing 42 (8.45 %) articles, four organizations in producing 12 (2.41 %) articles. [11] Garg, K.C. & Padhi, P. A study of collaboration in laser science and technology. Scientometrics, 2001, 51(2): 415-27 [12] Ajiferuke, I.S.Y., et al. Collaborative coefficient: A single measure of the degrees of co-authorship in research. Scientometrics, 1988, 15(5-6): 421-. [1] Santha kumar, R. & Kaliyaperumal, K. A Scientometric analysis of mobile technology publications. Scientometrics, 2015, 105(2): 921-929 [14] http://nopr.niscair.res.in/handle/12456789/2677 7. REFERENCES [1] Nageswararao, K et al. Bibliometric Analysis of the Journal of Propulsion and Power (1985-201), DESIDOC Journal of Library and Information Technology, 2014, 4(): 271-276 [2] Singh, J K. A scientometric analysis of Indian Journal of Pure and Applied Physics (2006-2010): a study based on web of science, Research Journal of Library Sciences, 2014, 2(1): 7-12 [] Kulkarni et al. Indian journal of pharmaceutical education and research (1996-2006) A Bibliometric analysis, Annals of Library and Information Studies, 2009, 56, 242-248 [4] Jena, K L. A bibliometric analysis of the journal Indian Journal of Fibre and Textile Research, 1996-2004, Annals of Library and Information Studies, 2006, 5: 22-0 [5] Mamdapur, G M N et al. Baltic Astronomy (2000-2008)- A bibliometric study, Annals of Library and Information Studies, 2011, 58: 4-40 [6] Dixit S and Katare, V V. A bibliometric analysis of the Journal of the Indian Society for Cotton Improvement, (1995-2004), Annals of Library and Information Studies, 2007, 54: 119-12 [7] Nattar, S, Indian Journal of Physics: A Scientometric Analysis, International Journal of Library and Information Science, 2009, 1 (4): 055-061 [8] Singh, J K. A Scientometric analysis of Indian Journal of Pure and Applied Physics (2006-2010): A study based on Web of Science, Research Journal of Library Sciences, 2014, 2(1): 7-12 [9] Anil kumar, E R. Prakasan, V L. Kalyane and Vijai kumar, Pramana-Journal of Physics: A Scientometric Analysis, Annals of Library and Information Studies, 2008, 55: 201-211 [10] Santha kumar, R. & Kaliyaperumal, K. Scientometric Analysis of Global Publication Output in Mobile Technology: A Scientometric Study, DESIDOC Journal of Library and Information Technology, 2015, 5(4): 287-292

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