• Journal of the Korean Society of Marine Environment & Safety
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• v.12 no.1 s.24
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• pp.61-66
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• 2006

It have been known that the probability of occidental happening in towing-barge is higher than that of other merchant vessels. Bemuse the towing-barge is restricted in thier manoeuvring ability due to its towingline. A report from ministry maritime affairs and fisheries said that the rate of collision occident for towing-barge is 40% high than other transport system in sea A number of researches have been carried out to improve the safety policy in the towing-barge sea transportation system by the gorvenment. This study examined the safety status in domestic towing-barge sea transportation system The registration status, safety operational policy and past occidental data were also examined A survey research of experts relating to towing-barge operation also was carried out to fine the detailed of safety status. This study would be applicable to set up safety policy for towing-barge marine transportation system.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.37C no.10
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• pp.949-964
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• 2012

Our PC have been under constant threat of malicious codes and viruses today. As many new ways of cyber attacks are being developed, such as zero-day-attack, nobody's PC is guaranteed to be safe from the attacks. In case where a user uses the existing verification protocol on a unsecured PC, the user's verification information may well be threatened by sniffing or man-in-the-middle attack. Especially, deadly attacks like memory hacking would give hard time for users to even recognize any symptom of virus infection. Therefore, this paper designs secured QR-Login user verification protocol for smart devices that are ready to communicate with QR-Code and proposes a way to keep critical data safe when using the internet. This way, user would be able to safeguard his/her critical data even when under attack by unknown attacks and safely carry out extremely sensitive task, like financial trading, on the device.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.37 no.3
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• pp.232-239
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• 2009

The prediction of the separation trajectories of external stores carried by military aircraft is an important task in the area of aircraft design having the objective to define the operational, release envelopes. This paper presents the results obtained for safe store separation from a fighter aircraft by experimental methods in the subsonic wind tunnel. The problems associated with separation of external stores can be studied by the use of several wind-tunnel test techniques. Attention is given the two most useful techniques: 1) dynamically scaled drop-model testing, 2) grid testing. A description of each method is given and data obtained are shown to validate the similarity within acceptable limits.

• Journal of Korean Tunnelling and Underground Space Association
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• v.20 no.6
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• pp.931-946
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• 2018

In line with the increased usability of utility pipe conduits in urban areas, construction and R&D activities of utility tunnel, incorporated with the shield TBM method, are actively under way. The utility tunnels are installed through underground excavation, and thus are relatively weak in terms of construction safety. However, hazards associated with the utility tunnel construction have not been properly identified, despite the introduction of a policy to the 'Design for Safety' for the purpose of reducing accident rates in the construction industry. Therefore, in this study, following the derivation of hazards associated with utility tunnel, these hazards were then used as the basis to uncover key safety hazards requiring extensive management in a field, which were then used to conduct a risk assessment having applied the matrix method so that the results can be utilized in risk assessment during the stages of utility tunnel planning, design, and construction, while also serving as a data reference.

• The Journal of the Korea Contents Association
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• v.18 no.11
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• pp.123-134
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• 2018

Recently, due to the rising incidence of disasters in the nation, there has been a growing interest in the relevance and role of science and technology in solving disaster and safety related issues. In addition, the necessities of securing the human rights of all citizens in disaster risk reduction, identifying fields of technology development for effective disaster response, and improving the efficiency of R&D investment for disaster and safety are becoming more important as the different types of disasters and stages of disaster and safety management process have been considered. In this study, we analyzed bipartite or two-mode networks constructed from an expert survey dataset of technology development for disaster and safety management. The results reveal that earthquake and fire are the two disasters affecting an individual and society at large and demonstrate that AI and big data analytics are effective supports in managing disaster and safety. We believe that such a network analytic approach can be used to explore some important implications exist for the national science and technology effort and successful disaster and safety management practices in Korea.

• Journal of the Korean Association of Geographic Information Studies
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• v.25 no.1
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• pp.1-15
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• 2022

In order to trust and use autonomous vehicles, safe driving on the road must be guaranteed. For this, the first infrastructure to be equipped with autonomous driving is traffic safety facility. On the other hand, autonomous vehicles(Level 3) and general vehicles are driving on the road, it is necessary to additionally manage existing general traffic safety facilities. In this study, a field management system for traffic safety facilities based on autonomous driving infrastructure was studied, and a pilot field management system was implemented in the demonstration area(Pangyo). The pilot system consists of a GNSS(Global Navigation Satellite System) receiver, a field management equipment, and a field management app. As a result of field demonstration,, it was confirmed that traffic safety facility information was easily transmitted and received even in downtown areas and that could be efficiently operated and managed. It is expected that the results of this study will be used as reference materials for the spread of autonomous driving infrastructure to local governments and infrastructure construction in the future.

• Journal of the Korea Institute of Construction Safety
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• v.5 no.1
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• pp.25-30
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• 2023

The Serious Disaster Punishment Act, which has been in effect since January 27, 2022, requires employers or management managers who neglect safety measures to be punished by imprisonment for more than one year in the event of a serious disaster. As this Act on the Punishment of Severe Disasters came into effect this year, it has received a lot of attention from society. According to experts, most of the opinions are that the bill was created focusing on increasing punishment for companies, contrary to the original purpose of the bill to reduce the safety accident rate. This study confirmed whether these contents were true through case studies, and if this continues, the conflict between companies and workers will intensify and the safety accident rate will not decrease. Therefore, this study does not unconditionally increase corporate punishment, but compares many situations through surveys and suggests a way for companies and workers to cooperate with the Critical Accident Punishment Act to reduce the safety accident rate.

• Proceedings of the Korean Society of Disaster Information Conference
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• 2023.11a
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• pp.307-308
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• 2023

본 논문에서는 공사현장 작업자의 실질적 영향을 미치는 요소들을 고려하여 인공지능기반의 실시간 위험성 추정 기법을 개발하였다. 기존 재난안전학 또는 안전공학에서는 위험성평가를 실시하여 강도·빈도에 의하여 위험성을 추정하고 도출된 값을 통해 위험한 정도를 분류하는 경우가 많다. 그러나 대부분의 공사현장에서는 정적인 위험성평가를 통해 해당 유해위험요인을 근거로 형식적인 위험성평가가 이루어지고 있기 때문에 대부분의 사고 후 증빙 자료로만 활용되고 있는 것이 현실이다. 이 위험성평가를 진행하면서 변화하는 환경의 유해위험을 실시간으로 반영할 수 없게 되고, 이는 실질적인 작업자의 안전을 보장해 주지 못하는 문제를 발생시킨다. 이러한 점에서 위험성평가와 더불어 실질적인 안전한 작업장을 만들기 위해서 작업자의 건강정보 및 실시간 공사현장의 영상정보에 기반한 위험성 추정 기법은 실질적 안전사고를 예방하는 방법론 중 하나가 될 수 있다. 작업자의 건강정보는 개개인 맞춤형 건강 데이터에 근거한 해석이 가능하고 실시간 공사현장 영상은 작업 중 발생할 수 있는 돌발상황에 대비하기위해 사용된다. 이러한 위험성 추정 방법은 다양한 공사현장의 위험성 추정 기법으로 사용될 수 있다. 이로 인해 높은 정확도의 위험성 추정 수치를 얻을 수 있으며, 이는 실질적안 안전 예방활동에 있어서 매우 중요하게 작용한다. 위험성 추정 수치 예제를 통하여 본 논문에서 제시된 위험성 추정 방법론이 타당함을 확인하였다. 본 논문에는 기존 위험성평가에 더해 작업자의 건강정보 및 공사현장 실시간 영상정보를 이용하여 실질적인 작업자 안전을 위한 예방 방법을 제시하였다.

• Journal of the Korea Institute of Building Construction
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• v.23 no.5
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• pp.583-593
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• 2023

For a holistic and precise assessment of safety benchmarks within a construction venture, it's paramount to delineate between the intrinsic features of the construction and its real-time, on-site performance metrics. In this study, we delved into genuine accident instances to discern the interplay between these construction attributes and on-ground performance determinants in relation to safety mishaps, employing the binomial logit analytical framework. Our scrutiny underscored that construction expenditure profoundly modulates the likelihood of fatal occurrences. Notably, variables pertinent to on-site safety protocols wielded considerable influence over both fatal mishaps and accidents implicating multiple personnel. These revelations intimate that while ascertaining the safety quotient of a construction initiative, a mere classification and recalibration based on fiscal dimensions can elucidate much. Yet, a comprehensive safety appraisal necessitates transcending quantitative indices, such as frequency of mishaps or casualty rates, to encapsulate the multifaceted interventions and strategies adopted at the construction locale.

• Journal of the Korean Institute of Gas
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• v.27 no.4
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• pp.78-84
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• 2023

Recently, the world's countries are tightening regulations on CO2 and air pollutants emission to solve them. In addition, eco friendly vehicles is increasing to replace automobiles in internal combustion engine. The government is supporting the expansion of hydrogen refueling infrastructure according to the hydrogen economy road map. In particular, refueling station is important to secure the safety that supplies high-pressure hydrogen with a wide LFL range. This paper is on guidelines for the determination safety distances to ensure worker safety from accident as jet fire. The safety distance is set according to the procedure of the EIGA doc 075/21. For accident frequency is upper 3.5E-05 per annum, safety distance is decided via consequence analysis where the risk of harm is below individual harm exposure threshold.