B. Garudadwajan ¹, S. Karthikeyan ¹, S. Thiagarajan ¹

Affiliations
1 Information Centre for Aeronautics, National Aeronautical Laboratory, Kodihalli, Bangalore 560 017, IN

Abstract

A sample survey was undertaken to study the pattern of use of library documents, in specified areas, as revealed by the loan transactions over the twenty-year period 1960-1980, divided into 10 spans of 2 years each. The survey was taken up to provide an objective criterion for the management to take decisions on library collection development policies including the desirability of removing the less used library documents to a secondary shelving space and their eventual weeding out from the collection and transfer to a National depository of library documents of archival nature. The analysis presented in this case study is based on a sample of 1011 documents in the area of materials science that were circulated during the period. The 'Use factor' of a document issued atleast once during the period covered by the Survey has been statistically investigated and presented. A further attempt has been made to characterise the distribution of issue transactions of documents acquired in three specific years, i.e. 1970,1971 and 1973, fit theoretical distributions to the use frequency data, and obtain the criticality of use in each case.

Full Text

     

B. Garudadwajan ¹, H. S. S. Murthy ¹

Affiliations
1 Information Centre for Aeronautics, National Aeronautical Laboratory, Bangalore 560017, IN

Abstract

The paper describes a study undertaken by the Library of the National Aeronautical Laboratory (NAL) on the pattern of output of journal literature in aeronautics and related subjects to obtain a fairly reliable estimate of the minimum size of the 'core journals' through the application of Bradford distribution. A comparison has been made of the desirable size of this core with the Laboratory's collection of journal titles on its subscription list. For the purpose of this study, only the English language journals and full translations of journals into English have been considered. The keynote of the study is (a) the coverage of world journal literature in the English language through the. international indexing journal 'International Aerospace Abstracts' (IAA); and (b) the analysis available from it for predicting and evaluating the extent of gap that needs to be filled for obtaining a 'corrected core strength' of the population of journals of high productivity that ensurs 960/0 coverage of literature output from English periodicals in aeronautics and related subjects.

Full Text

     

S. G. K. Murthy ¹, K. N. Prasanna Kumari ¹, B. Garudadwajan ¹

Affiliations
1 Information Centre for Aeronautics, National Aeronautical Laboratory, Bangalore, IN

Abstract

In this paper the library atuomation system established using dBase3 in ICA/NAL, is presented, including the Library Documentation Acquisition system. From the system we can generate various service by-products, such as reminders for over - due documents to the vendors, financial status, order generation, accession lists, recent book additions, etc. The aim is to input relevant data at appropriate stages of the automation system and integrate it with the library acquisition, circulation, and generation of current acquisition lists, and develop an appropriate Information retrieval system. The sailent features of the system are discussed.

Full Text