• Tunnel and Underground Space
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• v.17 no.6
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• pp.448-452
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• 2007

Papers on fracture toughness of rock were surveyed. In spite of variety in methods and nations, it seemed that same rock type shows similar fracture toughness value.

• Proceedings of the Korean Society of Disaster Information Conference
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• 2022.10a
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• pp.319-320
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• 2022

본 논문에서는 도로공사를 비롯한 각종 공사현장에서의 안전유도원(신호수 포함)에 대한 국내외 제도 및 현황을 비교분석하여 법·제도의 정비를 통하여 도로 및 공사 경우에 자격증 소지자에 한하여 안전사고 방지를 위한 교통 유도경비를 시행할 수 있도록 하며, 시행 초기에는 여러 영역에서 시행착오가 일어날 수 있을 것에 대응하여 일정교육을 정상적으로 이수하면 자격증을 부여하고, 전문교육기관과 자격제도가 시행되면 자격증 획득과 시험에 의한 검정으로 점차 발전시켜서 안전사고예방을 위한 방안을 마련하고자 하였다.

• Proceedings of the Korea Contents Association Conference
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• 2007.11a
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• pp.495-500
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• 2007

This study presents the case of technology assessment system as one of the major tools for R&D planning and analyzes the various cases of the domestic and foreign technology assessment systems to develop the differentiated and effective technology assessment system.

• Journal of the Society of Disaster Information
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• v.19 no.4
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• pp.984-992
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• 2023

Purpose: The core problem of this study is that there are no specific noise regulation standards for domestic blasting work. Currently, the domestic blasting work noise regulation standard has not been established separately, and the noise regulation standard of 80 decibels is corrected by 10 decibels to 70 decibels, which is the daily living noise standard. In contrast, many foreign countries have separate noise regulation standards specifically tailored to blasting work. Accordingly, it is intended to present international reasonable blasting noise standards by comparing domestic and foreign blasting work noise regulation standards. Mmethod: This study can be inferred as a comparative analysis of domestic and foreign noise regulation standards. Data on the current noise regulation standards during domestic blasting and noise regulation standards during blasting operations in the United States, the United Kingdom, Australia, Japan, and China are collected and analyzed. Results: According to the study, the noise regulation value during blasting work at domestic construction sites was not separately established, so it was not properly tailored to the specific and characteristics of blasting noise. In the case of overseas, a realistic noise regulation value was established so that a safer, more efficient and eco-friendly blasting method could be applied to the noise regulation value uniformly during blasting work. Conclusion: In this study, it is hoped that noise regulations will be established during reasonable blasting work, as shown in domestic and international comparative studies, and will be widely adopted without interfering with the introduction of efficient, economical, and eco-friendly blasting methods by complying well with blasting safety standards.

• Transportation Technology and Policy
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• v.10 no.1
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• pp.27-33
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• 2013

• Transportation Technology and Policy
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• v.11 no.3
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• pp.6-15
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• 2014

• Patent21
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• s.67
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• pp.2-13
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• 2006

과학기술활동에 의해 창출된 발명은 주로 특허에 의해 보호되고 있으나, 특허통계ㆍ지표에 대해서 국제적인 기준이 마련되지 않아 국제비교가 어려운 실정이며, 측정요소들의 조합에 의해 특허통계ㆍ지표의 종류 또한 매우 다양하지만, 이 지표를 모두가 과학기술활동을 측정하는 데에 유용한지에 대해서는 의문시된다. 따라서 그 대안으로서 각국 국가연구개발사업의 성과평가지표 활용사례 및 활용되고 있는 특허통계ㆍ지표를 중심으로 분석ㆍ연구하고자 한다.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.14 no.2
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• pp.179-197
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• 2003

As information technology advances and changes in the library environment, a flexible view and reinventing perspective of LIS research is necessary. This study focused on the investigation of the recent(2000-2003) research trends by analyzing the contents of articles from the major academic research journals for getting a future oriented view of the field. A taxonomy developed by Hawkins(2003) was applied in order to find out the major pattern of research in the domestic as well as international LIS Journals, and Chi-Square Tests Analysis was used to figure out if the research pattern has any effect on research environment(vice versa).

• Digital Contents
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• no.2 s.9
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• pp.47-55
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• 1994

센터내 DB표준화분과위원회 DB검색표준 실무작업반은 지난 93년도 하반기에 데이터베이스 검색표준화를 위한 연구를 수행했다. 그간 실무작업반에서는 국내외 대표적인 데이터베이스 유통업체들과 국외의 데이터베이스 유통업체들이 제공하는 서비스의 접속방법, 검색명령어, 검색화면 등을 조사 비교하고 분석된 결과를 사용자 요구사항을 바탕으로 데이터베이스 검색명령어의 표준을 마련했는데 본지에서는 연구결과를 중심으로 그 내용을 정리, 요약한다.

• Korean Journal of Construction Engineering and Management
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• v.6 no.5 s.27
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• pp.128-138
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• 2005

The success of mergers and acquisitions(M&A) have been evaluated by either measuring ex ante expectations for the specified time period(Window) or assessing long term-based post operating performance (ex post operating performance). In this study, utilizing cumulative abnormal return(CAR) method, M&As which are observed in both domestic and U.S. construction industries were analyzed then research outcomes are compared. Analysis results indicate that stockholders of public construction companies did not realize significant economic gains from M&As. In other words, there was no synergistic gains from the construction M&As. Also, no significant performance difference was observed between related and unrelated diversifications.