• 방재와보험
• /
• s.124
• /
• pp.48-52
• /
• 2008

설 연휴가 끝나갈 무렵 발생한 숭례문(국보1호) 화재사건으로 온 나라가 발칵 뒤집혔고 모든 국민은 나의 소중한 일부를 잃어버린 공허함에 형용할 수 없이 참담한 심정으로 하루하루를 살아가고 있다. 언제나 그랬던 것처럼 화재원인의 끝자락에는 여지없이 인재로 귀결되고, 보존관리와 소화과정에 대한 논란도 쉽게 정리되지 않을 듯하다. 우리 주변에는 화재발생 요인도 다양하지만 그 대상물 또한 지니는 특징이 매우 다양하여 소화기법이나 조사기법 등에 있어서도 그 만큼 복잡한 형태를 갖는다. 본 코너에서는 화재로 인해 심각하거나 빈번한 피해를 가져다주는 주요 구조 형태에 따른 화재의 특징을 살펴보고 화재 원인의 유형과 조사기법에 대하여도 논의해 보고자 한다. 숭례문 화재 사건은 현재 조사가 진행 중인 만큼 사찰과 함께 특수 건축물의 유형으로 분류하여 추후 논의할 기회를 가져볼 것이다. 화재의 종류에는 소방관점이나 건축법상의 대상물 등 다양하게 표현되고 분류할 수 있다. 본 코너에서는 이러한 틀에서 벗어나 화재의 특징이 달라질 수 있는 구조나 재료, 형태 등을 달리하는 건축물 또는 구조물별로 화재 현상을 나누어 그들에서 발생하는 화재의 특징을 살펴보고, 사고 후 업무와 관련이 되는 담당자의 관점에서 조사의 요점이나 화재 사례 등을 살펴보고자 한다. 접근 방법에 따라 몇 가지로 분류해 보면 다음과 같이 나누어 볼 수 있다.

• Journal of Energy Engineering
• /
• v.7 no.1
• /
• pp.81-88
• /
• 1998

This paper describes the method decide to optimal sizing and operation scheduling of total cogeneration system which is interconnected with cogeneration unit of utility and auxiliary thermal devices of heating company. Optimal sizing and operation scheduling is established in order to minimize the fuel cost under national viewpoint. Simulations are carried out to show the reliability of method suggested by seasons and kinds. The simulated results can be effectively used as the guideline of operation scheduling between the utility and the heating company.

• The Transactions of The Korean Institute of Electrical Engineers
• /
• v.62 no.12
• /
• pp.1657-1660
• /
• 2013

Short-term load forecasting for Chusok and New Year's consecutive holidays is very difficult, due to the irregular characteristics compared with ordinary weekdays and insufficient holidays historical data. During consecutive holidays of New Year and Chusok, most of industries reduce their operation rates and their electrical load levels. The correlation between businesses' operation rates and their loads during consecutive holidays of New Year and Chusok is analysed and short-term load forecasting algorithm for consecutive holidays considering businesses' operation rates of industries is proposed. Test results show that the proposed method improves the accuracy of short-term load forecasting over fuzzy linear regression method.

• The Transactions of the Korean Institute of Electrical Engineers D
• /
• v.51 no.10
• /
• pp.453-459
• /
• 2002

This paper proposes an improved algorithm of the daily peak load forecasting for Korean Thanksgiving Day and the Lunar New Year's day. So far, many studies on the short-term load forecasting have been made to improve the accuracy of the load forecasting. However, the large errors of the load forecasting occur i case of Korean Thanksgiving Day and the Lunar New Year's Day. In order to reduce the errors of the load forecasting, the fuzzy linear regression method is introduced and a good selection method of the past load pattern is presented. Test results show that the proposed algorithm improves the accuracy of the load forecasting.

• Proceedings of the Korean Society of Disaster Information Conference
• /
• 2023.11a
• /
• pp.51-52
• /
• 2023

다양한 삶의 질이 높아진 지금 인천국제공항에서는 영유아와 함께 비행기를 탑승하는 가족구성원을 쉽게 찾아볼 수 있다. 워라벨이 중시되고 긴 명절연휴를 맞아 해외 여행을 가는 것은 손쉬운 일이 되었다. 2013년 아시아나항공 213편 샌프란시스코 추락사고를 기억할 것이다. 당시 15개월 아기띠를 하고 있던 승객은 아기띠가 없었다면 아기를 잃었을 것이라는 인터뷰를 했다. 많은 국가가 영유아 안전벨트를 도입 및 장려를 하고 있지만, 아직 국내항공사는 영유아를 위한 안전벨트 도입에 소극적인 것을 알 수 있다. 유럽항공청 EASA에서 승인되어 사용하고 있는 영유아 안전벨트의 시스템을 살펴보고 예기치 못한 사고의 피해를 줄이기 위해 영유아 안전벨트의 필요성을 연구하고자 한다. 또한 도입에 따른 장애요인을 파악하고 대응 방안을 모색하여 국내항공사가 영유아 안전을 더욱 강화 할 수 있기를 기대한다.

• Journal of the Economic Geographical Society of Korea
• /
• v.20 no.3
• /
• pp.388-404
• /
• 2017

The Union of Kansai Governments of Japan is regarded as a bench marking for the successful cooperation, alliance, and cooperation of neighboring local governments. The Union of Kansai Governments was a realization several active plan of the Kansai Economic Federation. The purpose of this study is to examine the roles of the Kansai Economic Federation in the process for establishment of the Union of Kansai Governments, searching for theoretical implications for the inter-municipal cooperation of Gwangyand Bay in South Korea. In particular, this study review the activities and roles of the Kansai Economic Federation in relation with the establishment of a number of promotional organizations and governance systems. We played special attention to the three important factors carried out by the Kansai Economic Federation, that is, the contineous activities, the accumulated research results, and establishment of various promotion organizations and effective governance systems. We suggest, in conclusion, that these three factors would also have very important policy implications for the discussion of inter-municipal cooperation among three cities, Yeosu, Suncheon, and Gwangyang.

• Journal of Korean Society of Transportation
• /
• v.28 no.1
• /
• pp.39-49
• /
• 2010

Although many studies have been carried out on the pattern of behavior of drivers which result from the provision of traffic information, there have been few detailed studies on the composition of message, method for message expression, timing of provision, point of provision, media for provision, changes by traffic condition, etc. This study was intended to provide an insight into the changes in the characteristics related to the provision of information by analyzing how the patterns of information utilization change depending on the traffic condition and reclassifying such patterns according to the characteristics of media. Unlike the existing studies, this study adopted the traffic condition, using rate of information media, and the correlation coefficient label as the basis for information media classification, and categorized them into passive utilization media, active utilization media, and past experience in order to ensure the statistical reasonability. The categorized using rate of information media and traffic condition was found to have a positive(+) correlation with the travel speed in the case of passive utilization media during both consecutive holidays(Korea's traditional Thanksgiving day) and weekends, but had a negative(-) correlation with the positive utilization media and past experience. The rate of decision to take a detour based on the past experience was high at the condition of congestion or slow during both consecutive holidays and weekends, but the rate of decision to take a detour through passive utilization media was high in a smooth traffic. In other words, if the traffic condition worsens, using rate of passive utilization media would be low while the diversion rate would be high which uses the active utilization media and past experience. Therefore, it should be established to suit the traffic condition and media characteristics for strategies of traffic distribution through drivers' diversion behavior on weekends and consecutive holidays.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
• /
• v.27 no.6
• /
• pp.17-22
• /
• 2013

Fuzzy linear regression method has been used for short-term load forecasting of the special day in the previous researches. However, considerable load forecasting errors would be occurring if a special day is located on Saturday or Monday. In this paper, a new load forecasting method for the consecutive holidays is proposed with the consideration of the power demand variation rate. In the proposed method, a exponential smoothing model reflecting temperature is used to short-term load forecasting for Sunday during the consecutive holidays and then the loads of the special day during the consecutive holidays is calculated using the hourly power demand variation rate between the previous similar consecutive holidays. The proposed method is tested with 10 cases of the consecutive holidays from 2009 to 2012. Test results show that the average accuracy of the proposed method is improved about 2.96% by comparison with the fuzzy linear regression method.

• The Transactions of The Korean Institute of Electrical Engineers
• /
• v.61 no.12
• /
• pp.1765-1773
• /
• 2012

The accuracy of load forecast is very important from the viewpoint of economical power system operation. In general, the weekdays' load demand pattern has the continuous time series characteristics. Therefore, the conventional methods expose stable performance for weekdays. In case of special days or weekends, the load demand pattern has the discontinuous time series characteristics, so forecasting error is relatively high. Especially, weekdays near the thanksgiving day and lunar new year's day have the mixed load profile characteristics of both weekdays and weekends. Therefore, it is difficult to forecast these days by using the existing algorithms. In this study, a new load forecasting method is proposed in order to enhance the accuracy of the forecast result considering the characteristics of weekdays and weekends. The proposed method was tested with these days during last decades, which shows that the suggested method considerably improves the accuracy of the load forecast results.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2021.01a
• /
• pp.97-99
• /
• 2021

본 논문에서는 극장 비수기 기간 효율적인 상영을 위한 재개봉 영화 도출과 영화관 입장권 통합 전산망을 기반으로 극장 산업과 OTT 산업에서 제공하는 시청각 콘텐츠의 소비자 선호도를 분석한다. 기존 재개봉 영화는 연휴와 같은 성수기 바로 전 비수기 기간에 집중적으로 상영되고 있다. 즉 재개봉 영화 상영은 대형 영화 개봉 전 공백을 메우기 위해 상영되고 있음을 의미한다. 재개봉 영화는 대부분 예술 영화를 상영하고 연도마다 일정한 수요를 보이고 있다. 이러한 기조는 코로나 19 전까지 변함없이 이어졌으나, 코로나 19 이후 재개봉 영화에 대한 수요가 다른 년도 같은 월에 비해 급증하였다. 영화 산업의 전반적인 침체와 달리 재개봉 영화에 대한 수요는 늘어난 것이다. 코로나 19가 장기화되는 만큼 본 논문에서는 영화관 입장권 통합 전산망 데이터를 중심으로 영화 산업과 OTT 산업 이용자들의 선호 콘텐츠를 분석하고 기존 재개봉 영화와 대조하여 지속적이고 효율적 상영을 위한 재개봉 영화를 제안한다.