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운전자의 위험운전 행동 분석을 통한 시내버스 안전운전 지원 서비스 기회 도출
김민준(Min-Jun Kim),임치현(Chie-Hyeon Lim),이창호(Chang-Ho Lee),김광재(Kwang-Jae Kim),전진우(Jinwoo Jeon),박용성(Yongsung Park) 대한산업공학회 2015 대한산업공학회지 Vol.41 No.5
The purpose of this research is to identify new service opportunities for enhancing driving safety of intra-city buses based on driving behavior analysis. Service opportunity identification involves finding target customers of service (to whom), motivations for service (why), service contents (what), and service delivery process (when, where). This paper presents an analysis of driving behaviors using the operational data of intra-city buses in conjunction with traffic accident data and drivers’ driving history data. This paper also presents four identified service opportunities based on the data analysis results. This research would contribute to enhancing driving safety of intra-city buses in Korea and serve as a basis for developing new services for driving safety enhancement.
화합물 합성반응 중 Fridel - Crafts Acylation 공정에서의 폭주반응 위험성평가
이광호,김원성,전진우,주영종,박교식,Lee, Kwangho,Kim, Wonsung,Jun, Jinwoo,Joo, Youngjong,Park, Kyoshik 한국안전학회 2021 한국안전학회지 Vol.36 No.3
Heat is generated during the synthesis and mixing process of chemical compounds due to a change in activation energy during the reaction. A runaway reaction occurs when sufficient heat is not removed during the heat control process within a reactor, rapidly increasing the temperature, reaction speed, and rate of heat generation inside the reactor. A risk assessment was executed using an RC-1 (Reaction Calorimeter) during Friedel-Crafts acylation. Friedel-Crafts acylation runs the risk of rapid heat generation during Active Pharmaceutical Ingredient (API) manufacturing; it was used to confirm the risk of a runaway reaction at each synthesis stage and during the mixing process. This study used experimental data to develop a safety efficiency improvement plan to control the risks of runaway and other exothermic reactions, which was implemented at the production site of a chemical plant.
김효동,김혜리,서청민,전진우,박교식,Kim, Hyodong,Kim, Haelee,Seo, Cheongmin,Jun, Jinwoo,Park, Kyoshik 한국안전학회 2022 한국안전학회지 Vol.37 No.2
Currently, in Korea, lower and upper tier qualifying quantities of the 97 substances requiring preparation for accidents have been designated. The information on the submission of chemical accident prevention management plan varies depending on whether the handling volume is above or below the lower or upper qualifying quantity. Because the criteria of the lower and upper qualifying quantities of substance requiring preparation for accidents are not stipulated in the Chemical Substances Control Act, this study attempted to establish a criterion through significance verification. In addition, the study investigated whether these qualifying quantities are related to the Globally Harmonized System of Classification and Labelling of Chemicals (GHS), toxic concentration endpoint, and National Fire Protection Association (NFPA). Finally, by comparing the risk categorization of the GHS, endpoint, and NFPA, it was evaluated whether the circulation-volume-based risk categorization of the substance requiring preparation for accidents that are in the top 13 is appropriate. The qualifying quantities of benzene, toluene, and sulfuric acid needed to be adjusted upward, while those of methyl alcohol and ammonia were adjusted downward from the current qualifying quantities. It is required to establish a quantified criterion that fully reflects the domestic situations in Korea and various indicators such as toxicity, physicochemical properties, and circulation volume for the qualified criterion of hazardous chemical substances. The study is expected to be helpful in establishing an efficient system by systematizing the criterion for qualifying quantity.
사고대비물질 중 일부 유기용제 함량기준의 지정기준 선정에 관한 연구
김효동(Hyodong Kim),전진우(Jinwoo Jun),박교식(Kyoshik Park) 한국위험물학회 2021 한국위험물학회지 Vol.9 No.2
The designated criteria for concentration limit for substance requiring preparation for accidents is not clearly specified under the Chemicals Control Act. In this study, the target substances are five organic solvents (methyl alcohol, benzene, methyl ethyl ketone, toluene and ethyl acetate), which are toxic substances and substance requiring preparation for accidents. All five concentration limit of toxic substances is 85%. On the other hand, concentration limit of substance requiring preparation for accidents of both methyl ethyl ketone and ethyl acetate is 25% and other threes is 85%. In order to find out whether these concentration limits are appropriate or not, legal standards, physical dangerous, acute toxicity, occupational exposure levels, circulation and emissions volume were investigated. As a result of comparative evaluations, it was found that all five had similar physical dangerous and methyl ethyl ketone and ethyl acetate had less humans hazards than the other three. Therefore, it was judged that it is appropriate to amend the concentration limit of 5 target substances to be same.
박종구(Park, Joungkoo),전진우(Jun, Jinwoo) 대한관광경영학회 2021 觀光硏究 Vol.36 No.4
본 연구는 콜라텍에 형성된 노인여가문화의 일상적 여가공간화 과정과 여가활동으로 인한 노인의 사회적 교류망 구축의 원인과 결과를 규명해 내는데 목적이 있다. 이를 통해 노인여가문화와 관련된 이론적 틀을 밝히고자 한다. 65세 이상, 콜라텍에 이용년수 2년 이상, 주3회 이상 방문자 노인 19명을 대상으로 심층면담을 실시하였다. 분석방법은 근거이론적 방법을 적용하였다. 주된 연구결과는 다음과 같다. 첫째, 콜라텍에 있어서 노인여가문화의 분류는 29개의 하위범주, 14개의 범주가 도출되었다. 둘째, 노인들이 경험하는 콜라텍의 인과적 상황은 ‘고독고와 무위고의 삶’, ‘애주가’, ‘자기만족’ 등이며, 맥락적 조건은 ‘여가환경의 취약함’, ‘첫 방문은 지인과 함께, 중심현상은 ‘여가 일상생활’, ‘여가로 인한 사회적 인간관계’로 나타났다. 추가로 중재적 조건은 ‘인식변화’, ‘매너문화의 형성’, ‘운영자의 철저한 관리’, ‘빈곤’, ‘시설낙후’, ‘주위의 따가운 시선’, ‘접근성 떨어짐’ 등이며, 작용/상호작용은 ‘연애’, ‘춤에 대한 학습몰입으로 나타났다. 그 결과는 ‘신체적/정신적 건강증진’, 과 ‘여가가 즐겁고 행복함’으로 나타났다. 이러한 연구결과는 노인들은 더 이상 지루한 삶을 살고 싶지 않으며, 여생을 즐겁게 그리고 행복하게 보내려고 콜라텍을 방문하는 것으로 나타났다. 노인들에게 보다 안전한 여가환경을 제공하기 위해 콜라텍의 시설안전에 대한 정책적 접근이 필요할 것이다. The purpose of this study is to examine the leisure culture of the elderly by revealing the process of making Colatek the daily leisure space of the elderly and the formation of social exchanges due to leisure activities, thus presenting a theoretical frameworks. A Total of 19 senior citizens were interviewed in-depth based on the criteria of 65 years of age or older, more than two years of Colatek, and three or more visits of Colatek a week. As for the analysis method, the data was analyzed by applying the grounded theory method. The results of the study are as follows. First after analyzing the experience of leisure culture for the elder peoples, 29 sub-categories and Fourteen categories were drawn. Second, The causal situations experienced by the elder peoples are life of solitude and neglect, drinking, and self-satisfaction, and contextual conditions are leisure environmental vulnerability, first visit with acquaintances, and the central phenomenon was leisure daily life and social human affairs due to leisure activities. Mediating conditions were change of perception , formation of manners culture , thorough management of the operator , poor and underdeveloped facility , burning eyes from the people around , low accessibility , and action/interaction was love , learning commitment to dance , and the results were ‘promotion of physical/mental health’, and leisure activities are fun and happy . These findings show that older people no longer want to live boring lives, and they want to spend the rest of their lives pleasantly and happily. A more sophisticated policy approach to facility safety at Colatek will be needed to provide them with a safer leisure environment.