• Journal of Advanced Marine Engineering and Technology
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• 제33권5호
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• pp.705-712
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• 2009

The state changes of ocean covered over 70% of earth surface are one of the greatest factor of weather catastrophe. Recently weather extraordinary events are followed by steep increase of sea water temperature and scientists in various fields are studying and warning the weather changes. In this paper, floating buoy is developed to monitor ocean environments via Orbcomm satellite and a method is proposed to increase measurement accuracy of sea water temperature with common low price temperature sensor. Experimental results are presented to illustrate the usability and effectiveness of the developed system. A web-based real time monitoring system is built to monitor ocean environmental information such as sea and air temperature, salinity according to the position of buoy through the internet for user convenience.

• Journal of Chest Surgery
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• 제24권4호
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• pp.371-375
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• 1991

Postemetic rupture of the esophagus is an intrathoracic catastrophe which is universally fatal if untreated immediately. We have experienced one case of Boerhaave`s syndrome at the Thoracic & Cardiovascular Surgery Yonsei University College of Medicine. He was 56 years old male who complained severe chest-pain, dyspnea with sudden vomiting after alcohol. Esophagogram showed barium leakage through rupture site on lower esophagus into left thoracic cavity. He had taken repair of the rupture site of lower esophagus and wrapping it with the body of the stomach wall because of relatively clean rupture margin even though 48 hours following the rupture. He has been uneventful in post-operative courses & he discharged with good conditions.

• 대한안전경영과학회지
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• 제9권6호
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• pp.31-38
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• 2007

The construction industry by its nature retains higher level of danger where the smallest of error may lead to a major catastrophe endangering many workers and public safety as well as provoke social criticism. With the aid of quantitative statistical data on safety-related calamity analyzed till this day, this paper handled in depth the analysis of diseases other than the accidents, and selected new variable indexes that influence the indirect sections of calamity that are mostly concealed and incorporated them in a new model. For the factor selection of new calamity evaluation model, FRAT(Frequency, Recency, Amount, Type of merchandise/service)technique of customer-related management in marketing was applied, and as for the significance of each factor in the weight selection of variables. Consequently, considering the graveness of the FRAT itself through safety management experts, the related researches must be expanded.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2002년도 춘계학술대회 논문집
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• pp.481-485
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• 2002

In these days, as the scale of our technology becomes larger and more highly advanced, the magnitude of an accident tends to be large. For this reason, in some systems whose accident may cause a large-scale and long-term catastrophe, a preliminary and quantitative safety assessment has become required before its construction. A method developed for this requirement is risk assessment. In this study, we focused on the methodology of probabilistic risk assessment, which has been developed mainly in the field of nuclear power industry, and considered the process to adopt this method to railway system in order to establish a scientific and comprehensive way of safety assessment.

• 사회경제평론
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• 제38호
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• pp.241-259
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• 2012

This paper reviews four different kinds of currency crisis models proposed to explain the Korean crisis of 1997 to examine which model is more relevant to explain the Korean crisis of 2008. According to the author's investigation, the 'Frenkel-Neftci' cycle is more relevant model to interpret the Korean crisis of 2008. In 2008, spreads opened due to, first, high interest rate policy by the Korean government aimed to suppress real estate price increase, and, second, the expectation about exchange rate appreciation, and thirdly stock market returns after recovering the crisis. Then the international capital market catastrophe due to the subprime crises produced the sudden change of expectation of the market participants. Huge capital outflows resulted from the credit crunch in the international capital markets, and the possibility of exchange rate depreciation by the Korean government to promote exports in the course of the global recession.

• 융합경영연구
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• 제10권6호
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• pp.17-26
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• 2022

Purpose: This study analyzes advanced cases of overseas smart cities and examines policy implications related to the creation of smart cities in Korea. Research design, data, and methodology: Analysis standards were established through the analysis of best practices. Analysis criteria include Technology, Privacy, Security, and Governance. Results: In terms of technology, U-City construction experience and communication infrastructure are strengths. Korea's ICT technology is inferior to major countries. On the other hand, mobile communication, IoT, Internet, and public data are at the highest level. The privacy section created six principles: legality, purpose limitation, transparency, safety, control, and accountability. Security issues enable urban crime, disaster and catastrophe prediction and security through the establishment of an integrated platform. Governance issues are handled by the Smart Special Committee, which serves as policy advisory to the central government for legal system, standardization, and external cooperation in the district. Conclusions: Private technology improvement and participation are necessary for privacy and urban security. Citizens should participate in smart city governance.

• International Journal of Computer Science & Network Security
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• 제22권6호
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• pp.33-38
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• 2022

The sowing campaign is taking place with great difficulty as a result of active military actions in the eastern and southern parts of the country, specializing in the cultivation of grain crops. Seaports are blocked, which creates new threats to global food security. The generalization of analytical data is aimed at characterizing the food security of Ukraine before and during military actions, followed by the designation of possible consequences, including on global food security. The generalizations made prove the need to consolidate the efforts of Ukraine, as one of the world's largest food producers, and international organizations in order to avoid the greatest catastrophe of mankind in its modern history, which will be caused by famine.

• 한국지구과학회지
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• 제34권6호
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• pp.524-535
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• 2013

재난 리스크 모델을 활용하여 화산재 손실을 평가하기 위해서는 목적물별 손상함수가 정의되어야 한다. 손상함수란 목적물의 재해취약도를 정량화한 함수로, 공학 및 자연재해 연구 분야에서 널리 사용되고 있다. 특히 손상도, 취약성 곡선 등으로 연구되고 있는데, 학제간 연구를 수행하는 과정에서 혼란을 주기도 한다. 이에 본 연구는 손상함수의 유형을 정리하고, 손상함수를 구축한 사례를 소개하고자 한다. 손상함수는 일반적으로 과거 피해사례를 기반으로 구축된다. 국내에 화산재 피해사례가 없음을 고려할 때, 남한지역의 화산재 손상함수를 구축하기 위해서는 해외사례를 참고하여야 할 것이다. 한편 국외에서도 화산재에 대한 손상함수 연구는 다른 재난에 비해 적은데, 화산 피해사례도 적은편이다. 이에 본 연구는 극소수 피해자료를 활용하여 손상함수를 구축할 수 있는 방안을 제시하고, 뉴질랜드와 일본에서 보고된 실제 피해사례를 바탕으로 와이블함수 혹은 선형함수의 취약성 곡선을 구축하였다. 본 연구가 해외사례를 기반으로 손상함수를 구축하였음을 고려할 때, 본 연구에서 제시하는 손상함수를 이용하여 남한지역의 화산재 손실을 평가하기 위해서는 국내 목적물 특성 및 환경 조건에 맞게 손상함수를 보정할 필요가 있다.

• 한국콘텐츠학회논문지
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• 제14권11호
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• pp.644-656
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• 2014

최근 들어 이어지는 대형 안전사고는 공공 및 민간 영역에 걸쳐 발생하는 가운데, 초동 대처의 부실로 인해 많은 인명과 재산의 손실을 가져오고 있다. 부지불식간에 비상사태가 발생할 경우 신속한 신고 접수 및 정확한 현장 상황 전파와 같은 초기 대응만 제대로 이루어진다면 그 피해를 최소화할 수 있다. 이러한 안전사고와 재난 재해로부터 선제적 대응 및 예방에 스마트폰 기반 모바일 재난관련 앱의 역할이 중요해지고 있다. 이러한 관점에서 본 연구는 재난에 효과적으로 대처하기 위해 개발된 국내 재난관련 공공 앱서비스의 현황 및 이용 실태를 조사하였다. 재난 안전 분야 공공 앱은 보급 초창기로 사용자들에게 어떠한 요인이 앱 서비스의 이용에 중요한 영향을 미치는지를 밝히고자 하였다. 이를 토대로 현재 운용중인 재난관련 공공 앱의 문제점과 개선 방향을 제시하고, 향후 개발되어질 공공 앱의 서비스 방향과 이용 활성화 방안을 모색하고자 하였다. 연구결과, 사용자 측면의 신속성과 콘텐츠 측면의 신뢰도가 재난앱 활성화를 위해 가장 시급하고도 중요도 높은 요인으로 도출되었다.

• 복식
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• 제62권5호
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• pp.1-15
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• 2012

In a fast changing postmodern society, contemporary fashion is becoming more complicated and ambiguous along with other genres of art than ever before. This phenomenon reigning as a sociocultural paradigm can be defined as 'indeterminacy' and it means 'undecidability'. The purpose of this study is to clarify and analyze the indeterminate characteristics of contemporary fashion reviewing the theoretical background and the architectural formativeness as a comparative research. The core idea of deconstructivism dismantles a causal relationship between function and form in fashion and the conventional notion about clothes. Complexity theory, which is the study of chaotic dynamical systems, suggests the creative idea and concept of infinite possibilities on a formative method. Meanwhile, catastrophe theory of discontinuous change can be used as interpretative strategies for the process of deconstruction and reconstruction. As a result of this study, the indeterminacy of fashion can be analyzed into five semantic categories: irregularity, immateriality, randomness, complexity and changeability. The intrinsic value of the indeterminacy in contemporary fashion is the interaction with a sociocultural ideology and a technological environment as well as an expansion of formative expression. To conclude, it can be said that the indeterminacy in fashion is a new interpretation of the relationship among body and space, clothes and society.