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산업단지 및 일반생활 지역의 공기 중 톨루엔에 대한 개인노출 및 생체시료의 상관성 분석
이병준(Byoungjun Lee),허 정(Jung Heo),정다영(Dayoung Jung),김순신(Sunshin Kim),류현수(Hyeon-Su Ryu),최민지(Min-Ji Choi),솨이지엔페이(Jian-Fei Shuai),임성국(Sung-Guk Im),양원호(Wonho Yang) 한국환경보건학회 2017 한국환경보건학회지 Vol.43 No.4
Objectives: The purpose of this study was to assess the correlation relationship between personal exposure and urinary hippuric acid in biological monitoring for airborne toluene in an industrial complex and in general environments. Methods: Personal exposure to toluene and its metabolite, hippuric acid, in urine were simultaneously measured in occupational environments area near an industrial complex and in general environments. The study subjects were divided into three types: 137 workers who use organic solvents in the workplace, 210 residents living near a dyeing industrial complex, and 379 residents living in general environments. The toluene exposures of workers and residents were measured by a passive sampler for four days. The urine of participants was sampled when the passive samplers of personal exposure were collected. Results: The toluene and hippuric acid concentrations of workers were the highest, followed by the concentrations of residents living near a dyeing industrial complex and residents living in general environments. The coefficient of correlation between the concentrations of toluene and hippuric acid among workers was 0.749 (p<0.01) in the workplace. On the contrary, correlations between the concentrations of toluene and hippuric acid among residents living near a dyeing industrial complex and residents living in general environments were all not significant. The relationship between the concentrations of hippuric acid and toluene in three types could be described by the exponential growth model. Conclusions: This study analyzed the relationships between toluene exposure and the concentrations of hippuric acid in urine in high, middle, and low exposure environments, and could be described by the exponential growth model.
해석적 기법을 통한 후처리 시스템의 성능 예측 및 평가
이병준(Byoungjun Lee),요한 우르젠버거(Johann C. Wurzenberger) 한국자동차공학회 2009 한국자동차공학회 학술대회 및 전시회 Vol.2009 No.11
Emission regulations are becoming stringent more and more during the past few years. Almost suppliers and automotive companies have been developed aftertreatment system actively. During development processes, simulations are applied in many cases. To apply simulation for development process of aftertreatment system effectely, numerical method is so important, because various chemical reactions are in catalyst simulation. This study shows useful functions of simulation in aftertreatment system development. HC-storage, urea-injection of SCR system, pressure drop of various geometry of DPF cell and whole aftertreatment system considered heat loss from pipe which functions are new technologies of aftertreament simulation are studied using AVL BOOST(1D) and FIRE(3D) s/w. From this study, we investigated numerical method by validating with measured data.. Results of this study let us know effect of aftertreatment simulation to development.
독일의 승마교육 분석을 통한 우리나라의 승마교육 방향 탐색
주성순(Ju, SungSoon),박상봉(Park, SangBong),이병준(Lee, ByoungJun),서명천(Seo, MyeongChon) 학습자중심교과교육학회 2017 학습자중심교과교육연구 Vol.17 No.23
본 연구는 승마 강국인 독일의 학교 승마교육 사례 분석을 통해서 학교스포츠로서의 승마교육 도입을 위한 기초자료 및 시사점을 제시하는 것을 목적으로 실행하였다. 연구 핵심 내용으로는 독일의 주수준 승마교육 편성체계, 단위 학교 승마교육 편 성체계, 학교 승마교육 내용 및 교수법, 학교 승마수업 교수자의 역량, 학교 승마교육 운영 체계를 다루었다. 본 연구에서는 우리나라의 학교 승마교육에 기여할 수 있으며 분석의 가치가 있다고 판단되는 독일만의 독특한 학교 승마교육 사례들을 선정 하여 복합적 사례 분석을 실시하였다. 분석한 결과에 대한 논의 및 시사점을 바탕으로 얻은 결론으로는 학교 승마교육 실천을 위해서 체육과 내용 반영 및 광역지자체의 자율성 강화, 학교 승마교육 간의 유기적 관계 형성 및 지역 승마장과 연계, 학교 승마교육을 위한 교재 개발 및 지도자 양성, 승마 관련 기관의 학교 승마교육 지원 및 안전한 승마교육환경 조성을 도출하였다. 마지막으로는 한국마사회와 대한승마 협회의 적극적 역할 수행, 초·중등별 교재 개발, 학교와 승마시설의 연계 강화, 승마 에 대한 홍보 및 인식 개선을 제언하였다. This study aims to present basic information and implications for the introduction of horse riding education as a school sport through the case analysis of school horse riding education in Germany. The main contents of the study were the state level horse riding education system in Germany, the system of horse riding education at the different level of schools, the contents of the school horse riding education, the competence of the school horse riding class teacher, and the operation of school horse riding education. This study conducted a mixed case analysis by choosing cases of horse riding education in Germany, which can contribute to Korean school riding education and is considered to be worthy of analysis. It concluded that it is necessary to reflect the content of physical education department and strengthen autonomy of metropolitan government for the practice of school horse riding education, to organize close relation with school horse riding education and link with local horse riding entities, to develop teaching materials and to train teachers for school horse riding training, and finally strengthen education support and safe riding education environment. It further suggested the active role of Korean Racing Authority and Korea Equestrian Federation, development of textbooks for elementary and secondary school, strengthening linkage between school and equestrian facilities, and improving publicity and awareness about horse riding.