• Journal of the Society of Disaster Information
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• v.17 no.3
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• pp.568-578
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• 2021

Purpose: TThis study seeks to understand the provisions of the Industrial Safety and Health Act and the Construction Technology Promotion Act and to propose measures to prevent serious industrial accidents by seeking to promote safety and health of workers through improvement of safety management at construction sites. Method: A survey was conducted on construction sites with more than 50 permanent workers (5 billion won in construction amount). The analysis of the data was conducted using the JAMOVI statistics program and based on objective data. Result: Multiple regression analysis was conducted to verify the hypothesis of this study, and the results of the analysis. The participation of workers in safety and health activities has the highest impact on the promotion of safety and health of workers. Conclusion: In order to promote safety and health of workers at construction sites, compliance with safety and health rules of workers is required and improvements should be made to allow workers to participate in safety and health activities.

• Journal of Navigation and Port Research
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• v.38 no.4
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• pp.327-333
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• 2014

The Convention on the international regulations for preventing collisions at sea, 1972(COLREGs) defines the collision avoidance principles and various navigation rules for the prevention of collision at sea. In particular, the initial responses to avoid risk of collision are mainly decided by navigation officer's experience and subjective judgement. However, collision accidents could be effectively prevented if the minimum criteria of quantitative initial response are suggested to the junior officers and the cadets who have insufficient sea experience and navigation competency. This study reviewed the COLREGs terms related to the initial response and the existing papers concerned with risk assessment model. A questionnaire survey is also carried out for safe passing distance, degrees of alternating course and initial response distance to avoid collision in accordance with various encounter situations. Base on these results, we propose the proper minimum safe passing distance between the vessels, the initial response distance and required turning angles for alternation in each encounter situations. The suggested criteria of initial response will contribute to the prevention of collision at sea as well as the improvement of gradual navigation technology.

• Journal of KIISE:Databases
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• v.34 no.1
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• pp.1-17
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• 2007

As XML is becoming a de facto standard for distribution and sharing of information, the need for an efficient yet secure access of XML data has become very important. To enforce the fine-level granularity requirement, authorization models for regulating access to XML documents use XPath which is a standard for specifying parts of XML data and a suitable language for both query processing. An access control environment for XML documents and some techniques to deal with authorization priorities and conflict resolution issues are proposed. Despite this, relatively little work has been done to enforce access controls particularly for XML databases in the case of query access. Developing an efficient mechanism for XML databases to control query-based access is therefore the central theme of this paper. This work is a proposal for an efficient yet secure XML access control system. The basic idea utilized is that a user query interaction with only necessary access control rules is modified to an alternative form which is guaranteed to have no access violations using tree-aware metadata of XML schemes and set operators supported by XPath 2.0. The scheme can be applied to any XML database management system and has several advantages over other suggested schemes. These include implementation easiness, small execution time overhead, fine-grained controls, and safe and correct query modification. The experimental results clearly demonstrate the efficiency of the approach.

• The Journal of the Convergence on Culture Technology
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• v.10 no.2
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• pp.201-208
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• 2024

In this study, we investigated whether the evacuation time according to the exit installation standards specified in the building code during a food factory fire is compatible with the evacuation time based on the performance-based design specified by the fire department, in order to determine if evacuation safety is ensured. We used the Pathfinder program to confirm the evacuation time, and experimented with three scenarios for exit installation standards towards the outside of the building: 60m, 80m, and 100m. The target building in the experiment corresponded to the building code's exit installation standard of 100m from each dwelling. The experimental results showed tt in the cases of 80m and 100m, ASET exceeded RSET, indicating tt evacuation safety was not ensured, while in the case of 60m, evacuation safety was maintained. Through this study, it was confirmed tt even when the exit installation standards towards the outside of the building are met, evacuation safety may not be guaranteed.

• Journal of Korea Society of Industrial Information Systems
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• v.29 no.4
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• pp.1-11
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• 2024

Bridges crack and become damaged due to age and external factors such as earthquakes, lack of maintenance, and weather conditions. With the number of aging bridge on the rise, lack of maintenance can lead to a decrease in safety, resulting in structural defects and collapse. To prevent these problems and reduce maintenance costs, a system that can monitor the condition of bridge and respond quickly is needed. To this end, existing research has proposed artificial intelligence model that use sensor data to identify the location and extent of cracks. However, existing research does not use data from actual bridge to determine the performance of the model, but rather creates the shape of the bridge through simulation to acquire data and use it for training, which does not reflect the actual bridge environment. In this paper, we propose a bridge safety determination edge AI model that detects bridge abnormalities based on artificial intelligence by utilizing acceleration data from bridge occurring in the field. To this end, we newly defined filtering rules for extracting valid data from acceleration data and constructed a model to apply them. We also evaluated the performance of the proposed bridge safety determination edge AI model based on data collected in the field. The results showed that the F1-Score was up to 0.9565, confirming that it is possible to determine safety using data from real bridge, and that rules that generate similar data patterns to real impact data perform better.

• Journal of radiological science and technology
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• v.30 no.1
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• pp.53-59
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• 2007

A safety management rule of the diagnosis radiation system which opened a court 2006 February 10th was promulgated for safety of the radiation worker, patients and patients' family members. The purpose of this study is to minimize injury by radiation that can happen to patients and people around a sick ward when managing mobile X-ray system. This study analyzed sickroom environment of mobile X-ray examination and the statistical data of the Konkuk medical Information System(KIS) and the Picture Archiving Communication System(PACS). This study also investigated patient conditions, infection, relation information and related data, when the sickroom mobile X-ray examination is used. Through data analysis, many problems were expected such as restriction of space side, manpower and expense of business side, satisfaction degree decline of patient and protector of operation side. Therefore, we tried to restrict examination of multi bed sickroom, and to use treatment room in each ward to solve problem mentioned. As a result, the whole sickroom mobile X-ray examination rate decreased to near 50%, and mobile X-ray examination rate for inpatients decreased to more than 85%. This study shows that several attempts we did should be helpful for manpower, patients satisfaction and expenses. Also, they should protect patients in sickroom from unnecessary radiation exposure and could minimize inconvenience of patients and their family members from x-ray examination.

• Proceedings of the Korea Multimedia Society Conference
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• 2002.05d
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• pp.951-954
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• 2002

최근의 침입탐지시스템(IDS: Intrusion Detection System) 기술동향은 Misuse 방식의 규칙 데이터베이스 변경에 대한 한계성 때문에 Anomaly 방식의 NIDS(Network IDS)에 대한 연구가 고려되고 있다. 현재 국내에서 개발된 기존의 제품들은 대부분 Misuse 방식을 채택하고 있으며, 향후 국제 경쟁력을 갖추기 위해서는 Anomaly 방식의 기술 연구가 필요하다. 본 연구에서는 본 연구실에서 개발한 NIDS를 기반으로 연관 마이닝을 이용한 비정상 탐지 문제, 내부 정보 유출 차단 등에 대한 통합된 시스템 설계 방향을 제시하여 국가기관이나 기업이 보다 안전하게 침입을 관리할 수 있는 IPS(Intrusion Prevention System) 시스템을 설계한다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2013.10a
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• pp.66-68
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• 2013

이 연구에서는 내수면 선박의 현황 및 사고사례에 대하여 조사 및 분석하였다. 또한, 내수면 선박에 적용되는 여러 법규의 내용을 내수면 선박의 항해설비, 선원의 자격요건, 내수면선박의 항행규정으로 분류하고 검토하였으며, 외국의 주요 내수면 항행규정 사례 및 국제해상충돌방지규칙을 고찰하여 국내 항행규정의 문제점 및 보완점을 제안하였다.

• The monthly packaging world
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• s.186
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• pp.103-113
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• 2008

보건복지가족부는 화장품 부작용의 원인 규명 등을 위하여 화장품 제조에 사용된 모든 성분을 표시하도록 의무화하는 내용으로 "화장품법"이 개정(법률 제8646호, 2007. 10. 17. 공포. 2008. 10. 18 시행)됨에 따라 법률에서 위임된 사항을 정하는 한편, 안전성과 유효성이 확보된 기능성화장품의 품목별 심사를 면제하는 등 현행 제도의 운영상 나타난 일부 미비점을 개선.보완하려는 취지 아래 다음과 같은 내용을 공포했다.

• 동물약계
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• no.106
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• pp.2-4
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• 2006

동물용의약품등 제조업 신규 허가/동물용의약품 제조업 신고 수리/동물용의약품등 수입관리자 신규 승인/동물용의약품등 휴업 신고 수리/동물용의약품등 제조업 허가사항 변경/동물용의약품등 수입자 확인사항 변경/공익수의사에 관한 법률 시행령 및 시행규칙 제정령(안) 입법예고/수산동물용 미승인의약품 안전사용기준 고시 제정(안)에 대한 검토 의견 제출/가축전염병 병원체 등 관리요령 개정(안) 의견조회/휴면 국유특허 무상실시 제도 시행