• Journal of the Korean Society for Library and Information Science
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• v.42 no.4
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• pp.291-310
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• 2008

The U.S. Library of Congress proposal to change the subject heading of Tok Island(in Korea called Dokdo) to Liancourt Rocks was controversial. Therefore the status of Dokdo, national notation(Dokdo or Tokdo), and international notation used to identify the island were examined. In this examination, Tok Island's classification in the Korea Decimal Classification(KDC), Library of Congress Classification(LCC), and Nippon Decimal Classification(NDC) were compared and analysed, and a proposal for the role of libraries in the future was given.

• Journal of the Korean Society for Library and Information Science
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• v.34 no.1
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• pp.181-205
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• 2000

This study aims to compare the 21th edition of Dewey Decimal Classification and the 4th edition of Korean Decimal Classification. Several categories are used for analyzing those classification systems. The purpose of this study was to compare the quality of two schedules with some examples and to analyze important categories of them and to find out the problems of them and also to provide possible suggestions for the improvement of the Korean Decimal Classification System in 21th century.

• Journal of the Korean Society for Library and Information Science
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• v.42 no.4
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• pp.141-157
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• 2008

This study suggests some ideas for the improvements of the classes of Language(700) and Literature(800) of the 4th Edition of Korean Decimal Classification(KDC). They includes some recommendations for the followings: introducing some new entries of the time table for the Korean Literature and English and American Literatures; relocating some entries for the improvements including language policy and administration; using new terminologies: adding new and revised notes for the appropriate entries; changing some specific classifying methods including the classification of bilingual dictionaries; introducing some options including those for the subdivisions of modern novels and those for American Literature; and discontinuing some entries not used, especially those in other Languages.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.24 no.4
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• pp.301-317
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• 2013

This study investigated general problems concerning the physical education field in the KDC 6th edition based on comparative analysis of academic characteristics and classification system, and suggested some ideas for the improvements of them. Results of this study are is summarized as follows. First, while the academic classification divided items focusing on theoretical disciplines such as physical education, sociology, or business administration, the library classification divided them into details according to sport entries. Second, We examined the classification status of the physical education field of the collection database in the National Library of Korea. The number of physical education field data was 38,585, and of them, that of books having classification codes starting with 692(physical education, sports) was 22,870. This shows that data actually have been published mainly based on academic characteristics rather than sport entries, which causes a problem due to concentration of many data on one classification code. Therefore, this study analyzed keywords around these classification codes. Third, modified classification of items was basically performed through the academic system of the physical education and the keyword analysis, and the typical KDC classification system was maintained as much as possible.

• Journal of Korean Library and Information Science Society
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• v.35 no.4
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• pp.469-489
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• 2004

Time(Period table) is the chronological factor in a subject. Classification schemes are using the period tables for represent the time. CC and UDC's common auxiliary of time tables are consistence and clear. DDC and KDC are using the different way, though the notation is complicated.

• Journal of Korean Library and Information Science Society
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• v.42 no.3
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• pp.149-164
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• 2011

This study is to represent the research trends of the resource organization in Korea through the analysis of 607 papers related with resource organization in 4,015 papers on journals of 6 library & information science societies from 1970 through 2010. The results of this study are as follows. The average yearly papers in the case of academic journals published 14.8 pieces. The year published the largest number of papers: 2005 and 2009. The order of the number of papers by the domain of resource organization: cataloging, classification, indexing and abstracting, metadata, subject analysis. And the research on basic principle or theory in the resource organization showed insufficient. The research on KDC classification, cataloging rule, metadata element has are usually presented for improvements. But most of the research is not empirical analysis or objective assessment but subjective judgments of the researchers.

• Korean Journal of Agricultural Science
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• v.45 no.4
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• pp.687-694
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• 2018

This study was conducted to investigate the laying performance of six strains of Korean domestic chickens (KDC 1A, 2A, 3A, 1B, 2B and 3B). A total of 288 20-week-old KDC hens were allocated in a completely randomized design to give 12 replicates per each strain (4 chickens per pen). The chickens were fed commercial diets (i.e., week 20 - 32, crude protein [CP] 18.0% and metabolizable energy [ME] 2,850 kcal/kg; week 32 - 40, CP 17.0% and ME 2,800 kcal/kg) ad libitum together with fresh water during the 20-week experiment. Body weight, age of sexual maturity, egg weight, hen-day egg production (HDP) and feed conversion ratio (FCR) were measured during the experiment period (week 20 - 40). Our results show that strain 3B had an improved (p < 0.05) HDP and FCR compared with the other strains on week 24 - 28. However, strain 3A had an improved (p < 0.05) HDP and FCR compared to the other strains on week 28 - 40. Similarly, strain 3A had a higher egg weight (p < 0.05) compared to the other strains on week 28, 32 and 40. In conclusion, the higher laying performance of strain 3A indicates its potential in the development of a KDC strain with improved commercial laying performance.

• Journal of the Korean Society for information Management
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• v.40 no.4
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• pp.279-306
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• 2023

This study analyzed bibliographic attributes related to the selection and use of reading materials based on data on books borrowed or purchased together in order to understand the properties of reading materials that have complex user needs from various perspectives. As a result of creating co-occurrence matrices of bibliographic attribute terms by dividing them into 26 sub-attribute units related to KDC main class, target reader, and user age, and performing network analyses, the details and prominent mediating role of bibliographic attributes of reading materials were identified. The results of this study will be helpful in designing facets of reading information systems, including library OPAC, in the future.

• Journal of Nuclear Fuel Cycle and Waste Technology(JNFCWT)
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• v.4 no.3
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• pp.301-309
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• 2006

KDC-1 canister for PWR spent fuels which will be used for the Korean Reference Disposal System was developed. The structural analysis of the canister was carried out as a part of the safety analysis. Two conditions, disposal condition and handling condition, were considered for the structural analysis. Three kinds of load cases, normal, abnormal and rock movement, were considered for the disposal condition. The results of the calculation showed that the safety factors from the structural analysis were greater than the design requirements. Two accident scenarios, gripper failure accident and canister drop accident, were analyzed for the handling condition. According to the gripper failure scenario analysis, the handling machine with grippers could be used even in the cases that one or two grippers failed. The maximum von Mises stress from the canister drop accident scenario was 0.762 MPa, which was negligible compared with the yield stress of nodular cast iron. The proposed KDC-1 canister for PWR spent fuels proves to be safe under the repository condition that is based upon the Korean reference disposal system according to the structural analysis for disposal condition and handling condition.

• Journal of Convergence Society for SMB
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• v.4 no.1
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• pp.41-45
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• 2014

Only if the secret key stored in the engine ECU matches car key stored in the car, immobilizer system is a car anti-theft system that automobile engine takes. To take an action as soon in case of losing car key or being stolen, the ASPI protocol is proposed for assigning a new password after finishing user authentication by the smart phone etc. The shortcoming point of that directly bring the car to a service center in case of losing key can be complemented by the proposed protocol. In case of the car and key both are theft together, the car can be stopped soon.