• 한국산업융합학회 논문집
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• 제22권6호
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• pp.665-671
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• 2019

The estimated on-site accident rate in Forestry is relatively high. According to statistics of the accident, in the recent 5 years, from 2014 to 2018, forestry accidents have resulted in 98% of injuries and 87% of fatalities. Especially, there are significant geographical constraints to access to the scene in case of an accident. Even though the capacity of first aid capacity is notably emphasized its importance to minimize the scale of damages, the relevant employees have been educated only basic first aid, which is not considered circumstances or geographic limitations, by Occupation Safety and Health Acts. Therefore, the purpose of this study is to derive a direction for a forest emergency service system to increase forestry workers' survival and prevent secondary injury through securing 'Golden Time.' This study conducts analyzing relevant laws and regulations in domestic and international settings as well as looking at several concerned accident cases. The outcome of analysis presents an issue regarding the implementation of onsite first aid in forestry and existing risk factors depending on the working process. Finally, we suggest two ways to improve the forest emergency service that are 1) an appropriate curriculum and kit for forest first aid; and 2) a system for emergency transfer through sharing information between National Fire Agency (NFA) and emergency medical service center, and emergency and rescue mission using helicopter from NFA and Korea Forest Service.

• 한국측량학회지
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• 제33권4호
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• pp.221-229
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• 2015

개인의 안전에 직접적인 위협을 끼치는 도심 속의 범죄는 심각한 사회문제 중의 하나이다. 국내에서 범죄에 관한 정보는 주로 범죄 발생지점 주변의 핫스팟 형태로 제공되거나 위치정보가 없는 범죄 통계 형태로 제공되고 있다. 이로 인해 사용자가 실질적인 범죄발생에 취약한 지역을 파악하기가 쉽지 않은 실정이다. 본 연구에서는 공간정보, 통계정보, 공공정보를 이용하여 범죄발생 취약지역을 추출하는 기법을 제안하였다. 범죄발생 취약지역은 각각의 정보를 격자망 기반의 공간분석과 중첩분석을 통하여 추출하였으며 기존의 핫스팟 기반의 범죄관련 정보보다 상세한 범죄 취약정보를 제공하고자 하였다. 본 연구를 통해 추출한 범죄발생취약지역 결과는 국민생활안전지도와 비교하였으며 이를 통해 범죄발생 취약지역의 정확도가 높은 것으로 확인되었다. 본 연구의 결과는 향후 행정업무 차원에서 등급별 범죄 발생위험도 제공에 활용할 수 있을 것으로 사료된다.

• 한국화재소방학회논문지
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• 제24권1호
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• pp.134-139
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• 2010

"2008년도 화재통계연보"에 따르면 화재 발생의 약 34%가 호텔, 식당, 주택 등과 같은 실내 화재이고 그 중에서 약 53% 이상이 주방에서 발생하고 있다. 이에 최근에 국내에서는 공동주택내 주방의 화재소화 설비로써 주로 자동식 소화기를 사용하고 있고 형식 승인은 "자동식 소화기의 형식 승인 및 검정기술기준(KOFEIS 0101-1)"을 따르고 있다. 하지만 자동식 소화기 성능 평가 기준내의 한가지 환경조건만으로는 실제 주방에서 자동 소화기의 성능을 검증하는 것에 한계가 있다. 그러므로 다양한 주방 구조에 따라 화재 감지 특성에 대한 연구가 필요하다. 본 연구에서는 주방에서 레인지 주변의 형상에 따라 감지시간에 대한 영향을 수치해석 하였고 그 결과 화재 감지 시간의 차이가 약 100초 가량 차이가 났다. 또한 후드의 작동 여부에 따라서도 감지 특성이 다르게 나타났다. 이러한 결과를 바탕으로 주방 내에서 조리용 기름의 화재 제어를 위한 성능 평가 기준을 검증하고 개선하는데 활용될 수 있다.

• 한국화재소방학회논문지
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• 제33권1호
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• pp.113-120
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• 2019

점차 삶의 수준이 향상됨에 따라 건강하고 여유로운 삶에 대한 니즈가 증가하고 있다. 문화에 대한 대중의 니즈를 반영하여 국내에는 여러 개의 상영관으로 구성된 멀티플렉스가 빠른 속도로 보급되고 있다. 그러나 화재발생 시 피난안전 측면에 있어 위험성을 내포하고 있다. 건물의 공간 형태에 익숙하지 않은 불특정 다수의 관객은 피난으로 인한 입장 및 퇴장 동선의 충돌로 혼잡을 겪게 되기 때문이다. 따라서 본 연구에서는 이러한 문제점을 해결하기 위하여 피난시간을 단축할 수 있는 방안을 마련하고자, 상영관별 단계적 피난을 적용하여 피난시뮬레이션을 실시하였다. 해석 결과, 전 상영관이 동시 피난하는 것보다 상영관별로 단계적인 피난하는 것이 피난시간 확보에 유리한 것으로 나타났다.

• Journal of Positioning, Navigation, and Timing
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• 제7권4호
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• pp.217-226
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• 2018

According to the Korea Coast Guard's maritime disaster statistics (Korea Coast Guard 2017, Korean Statistical information Service 2018), an average of 2,140 marine accidents occurred every year for the past 6 years and the number of accidents is increasing every year. Among them, maritime accidents of fishing vessels are the most frequent, and recently accidents involving fishing boat and leisure vessels are rapidly increasing as well. In particular, the number of accidents involving leisure vessels increased to about one-third of the accidents of fishing vessels, and emergency rescue requests are increasing every year accordingly. However, the number of crash accidents involving users of small vessels and marine leisure activities are increasing because of the difficulties of installing navigation equipment and electronic navigation charts. Recently, the demand for precise positioning using mobile devices is increasing in the fields of maritime safety, piloting support, and coastal survey. Although various applications of smart devices provide location-based services for users, the measurement results are discontinuous when using the position coordinates of the National Marine Electronics Association (NMEA) calculated by smartphone. Recently, Google announced that they will provide GPS raw data to developers from Android 7.0 Nougat. As a result, developers have an opportunity to receive precise carrier phase and code measurements to make more accurate positioning according to the performance of Android devices. This study analyzed GPS positioning performance using Android devices, and compared and analyzed the positioning performance at sea with high-performance GPS receivers.

• 산업융합연구
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• 제16권4호
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• pp.27-32
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• 2018

본 연구는 다수의 인명피해가 우려되는 다중이용업소의 화재예방을 위하여 국민안전처의 예방소방행정 통계자료와 소방청의 국가화재정보센터 데이터를 기반으로 다중이용업소의 화제를 줄일 수 있는 방안에 대해 탐색적으로 접근을 시도하였다. 본 연구는 소방청의 예방소방행정 통계자료를 활용하여 다중이용업소 소방안전교육의 효과성에 초점을 맞추고 분석을 수행하였다. 분석 결과를 통해 소방안전교육이 실제 화재예방에 있어서 실효성을 가지지 못한다는 것을 유추해낼 수 있었다. 선행 연구들을 통해 그 원인이 소방안전교육의 운영 미흡이라는 것을 찾아내었으며 이를 통해 체계적인 소방안전교육 시스템 개발이라는 개선안을 도출하였다.

• 한국안전학회지
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• 제36권4호
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• pp.54-61
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• 2021

The purpose of this paper is to verify if safety managers must bear stress from additional tasks whenmanaging smart safety technology applications on construction sites. We conducted a survey of 133 safety managers who had experienced managing both safety management and smart safety technology applications at construction sites, and used the SPSS Statistics 25 and AMOS 22 programs to analyze the survey's logicality and the data that we collected. We found that the work burden caused by assuming additional tasks to manage smart safety technology applications affected the stress that safety managers experience when working at construction sites. The stress caused by an increased work burden led construction site safety managers to feel dissatisfied with their jobs. This finding indicates that both on the original job and on additional tasks are entirely mediated. Based on this finding, I suggest that the South Korean government should establish smart safety technology applications, thus reducing the work burden and increasing the job satisfaction for construction site safety managers.

• 한국물환경학회지
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• 제36권6호
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• pp.568-580
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• 2020

Calibrating a conceptual hydrologic model necessitates selection of a calibration period that produces the most reliable prediction. This often must be chosen randomly, however, since there is no objective guidance. Observation plays the most important role in the calibration or uncertainty evaluation of hydrologic models, in which the key factors are the length of the data and the hydro-climate conditions in which they were collected. In this study, we investigated the effect of the calibration period selected on the predictive performance and uncertainty of a model. After classifying the inflows of the Hapcheon Dam from 1991 to 2019 into four hydro-climate conditions (dry, wet, normal, and mixed), a conceptual hydrologic partitioning model was calibrated using data from the same hydro-climate condition. Then, predictive performance and post-parameter statistics were analyzed during the verification period under various hydro-climate conditions. The results of the study were as follows: 1) Hydro-climate conditions during the calibration period have a significant effect on model performance and uncertainty, 2) calibration of a hydrologic model using data in dry hydro-climate conditions is most advantageous in securing model performance for arbitrary hydro-climate conditions, and 3) the dry calibration can lead to more reliable model results.

• 인터넷정보학회논문지
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• 제21권6호
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• pp.133-139
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• 2020

Big data, artificial intelligence (AI), and machine learning are keywords that represent the Fourth industrial Revolution. In addition, as the development of science and technology, the Korean government, public institutions and industries want professionals who can collect, analyze, utilize and predict data. This means that data analysis and utilization education become more important. Education on data analysis and utilization is increasing with trends in other academy. However, it is true that not many academy run long-term and systematic education. Korea Institute of Science and Technology Information (KISTI) is a data ecosystem hub and one of its performance missions has been providing data utilization and analysis education to meet the needs of industries, institutions and governments since 1966. In this study, KISTI's data education was analyzed using the number of curriculum trainees per year from 2001 to 2019. With this data, the change of interest in education in information and data field was analyzed by reflecting social and historical situations. And we identified the characteristics of KISTI and trainees. It means that the identity, characteristics, infrastructure, and resources of the institution have a greater impact on the trainees' interest of data-use education.In particular, KISTI, as a research institute, conducts research in various fields, including bio, weather, traffic, disaster and so on. And it has various research data in science and technology field. The purpose of this study can provide direction forthe establishment of new curriculum using data that can represent KISTI's strengths and identity. One of the conclusions of this paper would be KISTI's greatest advantages if it could be used in education to analyze and visualize many research data. Finally, through this study, it can expect that KISTI will be able to present a new direction for designing data curricula with quality education that can fulfill its role and responsibilities and highlight its strengths.

• 한국안전학회지
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• 제37권5호
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• pp.56-61
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• 2022

In this study, a systematic survey was employed to investigate managers' awareness on the safety culture project in small- to medium-sized industries. The existing regulatory and technology-oriented disaster prevention strategy has been implemented to reduce industrial accidents within a short timeframe, but it is essential to reduce fundamental accidents as well by improving the organizational safety culture or software elements, such as safety awareness. Questionnaires and interviews were conducted to examine the managers' awareness about safety culture, consisting of 17 questions related to safety consulting and with the participation of 191 executives and safety managers. The results showed a significant difference in the self-pay rate of safety consulting depending on the size of the workplace under evaluation. Based on the results, the safety-consulting business focused on providing differentiated consulting support and realistic improvement plans according to the workplace size. The study concluded that it is possible to reduce fundamental human errors and improve organizations' safety awareness or safety culture by employing safety consulting differentiated by workplace size.