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전형준(HyungJoon Chun),손진희(JinHee Son),정태량(TaeRyang Choung),최대승(DaeSeung Choi),박영민(Youngmin Park) 한국소음진동공학회 2014 한국소음진동공학회 학술대회논문집 Vol.2014 No.10
3D 소음시뮬레이션시 각 고시에 따른 적용인자 중 방음벽성능에 대한 적용방법은 기본프로그램값을 적용하는 경우가 많았다. 이에 실제 소음측정결과와 교통량을 적용하여 3D 소음시뮬레이션시 방음벽 재질별로 적용한 결과 설치된 방음벽 제원을 가장 유사하게 적용할 경우 소음예측결과가 오차범위가 적어지는 것을 알 수 있었다. 이렇듯 3D 소음시뮬레이션 시 모든 예측인자와 설치인자들을 정확히 적용하여야만 정확한 예측결과를 통한 검증과 저감방안을 계획할 수 있다.
교대근무가 자동차 공장 근로자들의 건강상태, 가족 및 사회생활에 미치는 영향
백도명,손미아,전형준,김용철,조은연,김지용 大韓産業醫學會 1998 대한직업환경의학회지 Vol.10 No.4
Effect of shift work on worker's health, family and social life was investigated at a automobile manufacturing plant in Inchon. In total, 2488 shift workers and 599 non-shift workers completed self administered questionnaire in their sleep pattern, subjective gastrointestinal symptoms, prevalent chronic disease status, general well-being schedule, family and social life. More shift workers complained of sleep disturbance, poor sleep quality, tiredness at awakening, and sleepiness in work than non-shift workers. More shift workers also complained of gastrointestinal disturbance than non-shift workers. Worker's mental health was assessed by General Well-Being Schedule(GWB) questionnaire developed for the U.S. Health and Nutrition Examination Surveys(HANES I). The percentage of severely distressed shift workers was significantly higher than that of non-shift workers(P<0.01). Among subscores in General Well-Being Schedule, anxiety, depression, positive well-being, vitality, and general health subscale of shift workers were lower than those of non-shift workers(P<0.05). In terms of family and social life, there was no significant difference between two groups. Multiple logistic regression analysis was done for discrete variables which showed statistically significant difference between shift and non-shift group. The variables included in analysis were sleep disturbance symptoms, gastrointestinal complaints, and distress level calculated from GWB score. Age, tenure, smoking, alcohol. drinking, and exercise were adjusted as confounding factors and odds ratios for above symptoms due to shift work were calculated. Odds ratios(ORs) for sleep disturbance symptoms ranged from 0.52 to 3.59. ORs for gastrointestinal complaints ranged from 1.19 to 1.34 OR for distress level was 1.31. We concluded that shift workers are suffered from physical and psychological ailments due to shift work and interventional methods for preventing worker's health from adverse effects of shift work are needed.