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박민정(Min- Jeoung Park),김병수(Byoungsoo Kim) 한국전산유체공학회 2002 한국전산유체공학회 학술대회논문집 Vol.2002 No.-
In the present research, a parametric study of aerodynamic characteristics for multi-element airfoils is performed. The major geometric parameters of interest are the gap distance between airfoils and relative deflection angle of slat/flap. The present results are mainly obtained by using inviscid flow calculation, and the aerodynamic characteristics are focused on the surface pressure distribution and the lifts. The results of the present research may be used as not only qualitative data but also quantitative data for small angle of attack flows, where the viscous effect does not play major role in terms of surface pressure distribution and lifts. A further research in this subject including viscous calculation and more geometric parameters is to be performed in the future.
윤대현 ( Dae Hyun Yoon ),박진호 ( Jin Ho Park ),조수철 ( Soo Churl Cho ),박민정 ( Min Jeoung Park ),김선신 ( Sun Sin Kim ),최승호 ( Seung Ho Choi ),최수연 ( Su Yeon Choi ),정인경 ( In Kyong Jeong ),이철민 ( Cheol Min Lee ),신찬수 대한비만학회 2005 The Korean journal of obesity Vol.14 No.4
연구배경: 우울증은 여성에서 유병률이 높고 다양한 질환과의 연관성을 보이는데 특히 심혈관계 질환과의 상호 연관성이 보고 되고 있다. 대사증후군 또한 만성 질환 발생에 매우 주요한 위험인자로 그 중요성이 강조되고 있는데 아직 우울증과 대사증후군의 연관성 연구는 제한된 연령의 여성군에서만 소수 진행되었다. 본 연구는 광범위한 연령의 여성을 대상으로 우울증상과 대상증후군의 연관성을 분석해 보고자 한다. 방법: 연구대상자는 15~85세 사이의 여성 4,613명이었다. 대사증후군 존재 유무 평가는 복부미만을 제외하고는 NECP-ATP III 기준을 활용하였고 복부비만의 평가는 최근 제안된 대한비만학회의 새로운 지침을 이용하였다. 우울증상은 Beck 우울 척도로 측정하였다. 결과: 연구대상자 중 594명 (12.9%)이 대사증후군을 가지고 있었다. 우울증을 가진 여성군에서 대사증후군의 존재 빈도가 유의하게 높았고 (P<0.001), 대사증후군 지표수가 증가할수록 우울증상군이 증가하는 경향을 보였다 (P<0.01). 우울증상과 대사증후군 5가지 지표들 (허리둘레, 고혈압, 중성지방, 혈당, 고밀도-콜레스테롤)의 연관성 분석에서는 혈당 상승 (P<0.05)과 복부 미만 (P<0.01)이 통계적으로 유의성을 보였다. 결론: 본 연구의 결과는 여성에서 대사증후군과 우울증 간 연관성이 존재함을 보였고 대사 증후군과 우울증의 상호 역할에 대한 보다 적극적인 이해가 필요함을 시사한다. Background: Depression is prevalent among women and has been associated with a variety of diseases, more specifically with cardiovascular disease. The metabolic syndrome is gaining reputation as an important risk factor for major chronic diseases. However, the study on relationship between depression and metabolic syndrome are scarce and have been limited to restricted age groups involving female participants. The current study examined the association between depressive symptoms and metabolic syndrome in Korean women through broad age ranges. Method: The participants included 4,615 Korean women aged 15~85 years. Each individual was assessed for the presence of metabolic syndrome according to the NECP-ATP III criteria except for waist circumference, for which new criteria recently suggested by Korean Society for Study of the Obesity was used. Depressive symptoms were assessed by Beck Depression Inventory (BDI). Results: Of the total participants, 594 women (12.9%) had metabolic syndrome. There was a graded relationship between depression and number of the metabolic syndrome components (P<0.01). The prevalence of Metabolic syndrome was significantly higher in depressed women (P<0.001). Among the components of metabolic syndrome, High glucose level (P<0.05) and central obesity (P<0.01) were associated with depressive symptoms. Conclusion: This study shows that metabolic syndrome is associated with depressed women through wide range of ages and suggests that further studies on interaction between depression and metabolic syndrome are needed.
박민정,김병수 忠南大學校 産業技術硏究所 2003 산업기술연구논문집 Vol.18 No.2
In this paper the effects of the wingtip shape on the aerodynamic characteristics of 3-dimensional wings are analyzed. For the sake of accuracy, a well-known and well-debugged commercial flow code is used while the grid generation is done by using an in-house code which is based on a hyperbolic grid generation algorithm. The flow solution is obtained for inviscid flow, and the effects of the wingtip shapes are calculated and discussed.