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농촌지역 보건기관 치과진료실 유무와 인근 노인의 구강보건실태 관련성
정경신(Kyung-Shin Jeong),나백주(Baeg-Ju Na),김은심(Eun-Sim Kim) 한국농촌의학 지역보건학회 2015 농촌의학·지역보건 Vol.40 No.4
Objectives: This study was conducted to find the relationship between oral health conditions of elderly people and closures of public dental health clinics in rural areas. Methods: Oral examinations and surveys were conducted in 2011 from May 11 through November 4 on 383 seniors over 65-years and under 74 years old. Results: The results of this study were as follows: 1. The results of comparative analysis of the usage behaviors of health clinics of subjects in relation to the closures of public dental clinics within the area showed that the usage level and frequency of public health agencies in areas with public dental clinics were high, and that the trend of influence on personal oral health conditions and improvement in prevention was high. When compared to 3 years ago, there was an 11.6 percentage point reduction in areas without public dental clinics (24.4%) compared to areas with public dental clinics (12.8%). 2. The results of comparative analysis of the oral health conditions and behaviors of subjects in relation to the closures of public dental clinics showed that the level of dental caries was high in areas with no public dental clinics, and the number of toothbrush usage and oral health supplemental product usage were shown to be high in areas with public dental clinics. Conclusion: The closures of public dental clinics were found to affect oral health behavior and conditions of elderly people in rural areas.
승용차 프론트 사이드 조립체 부품의 역할과 붕괴모드에 관한 역설계적 유한요소 충돌해석
김용우(Yong-woo Kim),김정호(Jeong-Ho Kim),정경신(Kyung-Shin Jeong) 한국자동차공학회 2006 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
Crashworthiness design is of special interest in automotive industry and in the transportation safety field to ensure the vehicle structural integrity and more importantly the occupant safety in the event of the crash. Front side assembly is one of the most important energy absorbing components in relating to the crashworthiness design of vehicle. The structure and shape of the front side assemblies are different depending on auto-makers and size of vehicles. Thus, it is not easy to grab an insight on designer's intention when you glance at a new front side member without experiences. In this paper, we have performed the explicit nonlinear dynamic finite element analysis on the front side assembly of a passenger car to identify the mechanical roles of major parts of the assembly from the viewpoint of reverse engineering. To do this, we have performed crash FE analysis for the assembly of small-and medium-sized cars and have compared dynamic behaviors of the two.
김용우(Yong-Woo Kim),김정호(Jeong-Ho Kim),정경신(Kyung-Shin Jeong) 한국자동차공학회 2005 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2005 No.11_3
Crashworthiness design is of special interest in automotive industry and in the transportation safety field to ensure the vehicle structural integrity and more importantly the occupant safety in the event of the crash. Front side assembly is one of the most important energy absorbing components in relating to the crashworthiness design of vehicle. The structure and shape of the front side assemblies are different depending on automakers. Thus, it is not easy to grab an insight on designer's intention when you glance at a new front side member without experiences. In this paper, we have performed the explicit nonlinear dynamic finite element analysis on the front side assembly of a passenger car to identify the mechanical roles of each part of the assembly from the viewpoint of reverse engineering.