• Journal of the Korea Institute of Information Security & Cryptology
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• v.12 no.2
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• pp.65-76
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• 2002

Shin et al. proposed the new hash function with 160-bit output length at PKC'98. This hash function is based on the advantages of the existing hash functions, such as SHA-1, RIPEMD-160, HAVAL, and etc.$^{[1]}$ Recently, Han et al. cryptanalyzed the hash function proposed at PKC'98 and proposed the method finding a collision pair with $2^{-30}$ probability at FSE 2002, supposing that boolean functions satisfy SAC(Strict Avalanche Criterian).$^{[2]}$ This paper improves the method and shows that we can find a collision pair from the original version of the hash function with $2^{-37.13}$ probability through the improved method. And we point out that the problem of the function comes from shift values dependent on message.

• The Journal of Sustainable Design and Educational Environment Research
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• v.19 no.4
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• pp.50-59
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• 2020

Integrated operation schools were introduced to Korea in 1998 with an operation of eight schools, and their number has now increased to 106 and is still growing. Although various problems have been pointed out in research on integrated operation schools over the past two decades, these have not been reflected today. Therefore, the purpose of this study was to comprehensively summarize the concepts, backgrounds, recent status, types, etc. of the integrated operation school and to present its problems in terms of curriculum, teacher management, student management, operation and management of educational facilities, and law and policy through literature review and to propose measures for improvement. This allowed us to compare the concerns of the integrated operation school with the results of the actual research and organize improvement measures.

• Journal of the Korean Society for Library and Information Science
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• v.56 no.2
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• pp.277-294
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• 2022

This study was conducted to find a task to adjust the conflict situation by categorizing and analyzing the recent cases of library book censorship and analyzing the field perception on the subject of library book censorship. Therefore, recent cases of book censorship were categorized into four categories: political, legal, sexuality, and sex crime. As a result of the study, 44.5% of the respondents who answered that the restriction on access to books related to sex crimes was not a library censorship or that it was difficult to judge. It showed the perception that this issue is not an issue that can be easily decided by book censorship. Meanwhile, as a result of a survey of librarians, there was an opinion that there was a need for restrictions on collecting or reading at the library site for various reasons, and eventually showed a gap from the code of ethics for librarians against all censorship, showing the need to make efforts to reconcile such conflicts in the future.

• Korea Trade Review
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• v.43 no.3
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• pp.47-74
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• 2018

The United States is often perceived as a free-trading nation as it significantly contributed to the establishment of the GATT and WTO in the 20th century. With the inauguration of the Trump Administration in 2017, however, trading partners of the United States are faced with great concerns over the 'new' aggressive, protectionist and above all, unilateral trade threats posed by the United States under the name of 'America-First' trade policy. However, the recent unilateral trade actions by the United States are not new, but has historically and continuously been used to protect its key industries, like the automobile sector. This paper analyzes the historical cases of the unilateral trade policy of the United States in the automobile industry, targeting Korea and Japan in the 1980s, 1990s and 2010s. Then, we draw future implications for other key industries of the United States such as IT, intellectual property, services and agricultural sectors. This study evaluates whether such unilateral practices have brought successful and expected outcomes in favor of the United States.

• Design Convergence Study
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• v.17 no.2
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• pp.235-244
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• 2018

The health checkup conducted by the National Health Insurance Corporation is aimed at early detection and prevention of diseases. After the screening, you will receive a result sheet, which is a means for smooth communication between the medical staff and the patient. So far, design improvements have been made to the results. However, it is still pointed out that patients have low understanding and cognitive problems. Therefore, in this study, the opinions of the actual users, the medical examiners, and the designers are investigated to improve the design and to propose convenient checkup result sheets. The research method is to investigate the problems of information design research related to the results of the health examination and the user interviews on the results of the current health examination, and to improve the design of the existing results. In addition, we conducted a questionnaire survey on the results of the existing health checkups and the results of the improved checkups by the researchers, and finally designed them by referring to the results. As a result, I got a positive answer that many of the problems pointed out in the existing results were solved.

• Journal of The Korean Association For Science Education
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• v.26 no.3
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• pp.307-316
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• 2006

The purpose of this study was to analyze intellectual characteristics of elementary students in science-gifted education. For this, 72 science-gifted students were selected. Multiple intelligences, creativity, and the science process skills of these students were tested. To compare these traits with those of general students, 78 general students were also tested. The results of this study indicated that science-gifted students significantly surpassed general students in the areas of logical-mathematics, intra-person, and naturalist. Especially, the intelligences of logical-mathematics and intra-person were strong point of the science-gifted students. But music intelligence among the 8 intelligence was weak point. Creativity and the science process skills of the students in science-gifted education excelled those of general students. Therefore, to enhance the efficiency of the science-gifted education program in elementary school, it is necessary to consider the intellectual characteristics of the students.

• Journal of the Korean Society for information Management
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• v.40 no.4
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• pp.259-277
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• 2023

This study aims to identify the academic landscape of the field of Library and Information Science by analyzing the research areas of the four major domestic journals using structural topic modeling and network analysis. The results show that each journal focuses on different research areas. The Journal of the Korean Society for Library and Information Science covers the most comprehensive range of research areas in the field, while the Journal of the Korean Biblia Society for Library and Information Science shows a similar research trend but with a higher preference for research areas related to library management and library programs. The Journal of Korean Library and Information Science Society deals more with topics related to school libraries and reading education and the Journal of the Korean Society for Information Management focuses more on information technology and information science. This study is able to provide valuable foundational data for researchers in submitting their papers and for the topical specialization and diversification of the journals in the field of Library and Information Science.

• Journal of the Korean Society for information Management
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• v.28 no.2
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• pp.65-78
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• 2011

The purpose of this study is to identify topic areas of academic library research using two informetric methods; word clustering and Pathfinder network. For the data analysis, 139 articles published in major library and information science journals from 2005 to 2009 were collected from the Korean Science Citation Index database. The keywords that represent research topics were gathered from two sections: an and titles in references. Results showed that reference titles usefully represent topics in detail, and combinings and reference titles can produce an expanded topic map.

• Journal of Information Management
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• v.19 no.1
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• pp.73-94
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• 1988

Author co-citation analysis with 20 authors from Korean Nutrition Literature were executed. The purpose of this study is to examine the meaning of bibliographic phenomena in Korean literature by co-citation and to approach the intellectural structure of nutrition field in view of multidimensional space. The analysis assumes that the more two author are cited together, the closer the relationship between them. The raw data are co-citation counts from the Korean Journal of Nutrition over the period 1986~1987. The resulting map shows (1) identifiable author groups of nutrition, (2) locations of these groups with respect to each other, (3) the degree of centrality and peripherality of author within groups, (4) the relationship between domestic authors and foreign authors.

• Proceedings of the Korean Society of Computer Information Conference
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• 2022.07a
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• pp.169-172
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• 2022

재난안전 분야의 기술개발 동향을 파악하고 지적 관계를 분석하기 위한 연구에서 신뢰성과 최신성을 겸비한 학술정보를 활용하는 것은 매우 유용하다. 기존의 논문 기반 계량정보분석 연구에서는 관련 분야의 학술지와 키워드를 중심으로 분석 대상 논문을 선별하여 연구재료로 사용하였다. 본 논문에서는 재난안전 분야의 보다 세부적인 연구 특성 파악을 위해 국내 대학기관의 방재 및 안전공학 학과에 소속된 저자들의 논문 정보를 대상으로 기관식별, 학과유형 분류, 재난안전유형 분류. 표준산업분류를 매핑하고 주요 측면별로 분석 연구를 수행하였다. 분석 결과, 재난안전 분야 연구에서 저자소속 기관의 유형 및 지역적 분포, 공저 학과 유형의 구성, 재난안전유형 및 표준산업분류의 현황과 핵심 키워드가 자세히 파악되었다. 연구 결과는 향후 지능형 위기경보 체계 구축을 위한 재난유형별 주요 기관 및 전문가 식별과 추천에 활용이 기대된다.