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풍상 범주 중인 세일링 요트의 자세를 고려한 속도 추정 방법
박미연(M.Y. Park),이희범(H. Lee),박선호(S. Park),이신형(S.H. Rhee) 한국전산유체공학회 2014 한국전산유체공학회지 Vol.19 No.3
One of the most important factors in sailing yacht design is an accurate velocity prediction. Velocity prediction programs (VPPs) are widely used to predict velocity of sailing yachts. VPPs, which are primarily based on experimental data and experience of long years, suffer limitations applied in realistic conditions. Thus, in the present study, a high fidelity velocity prediction method using the computational fluid dynamics (CFD) is proposed. Using the developed method, velocity and motion of a 30 feet sloop yacht, which was developed by Korea Research Institute of Ship and Ocean (KRISO) and termed KORDY30, were predicted in upwind sailing condition.
TRUE Test(R)로 시행한 접촉피부염 환자에서의 첩포시험 결과 -2009∼2010년간 다기관 공동연구-
홍연주 ( Yeon Ju Hong ),최혜영 ( Hae Young Choi ),김계정 ( Kea Jeung Kim ),이가영 ( Ga Young Lee ),김도원 ( Do Won Kim ),김성진 ( Seong Jin Kim ),김수찬 ( Soo Chan Kim ),노영석 ( Young Suck Ro ),문기찬 ( Kee Chan Moon ),박미연 ( M 대한피부과학회 2011 大韓皮膚科學會誌 Vol.49 No.8
Background: The TRUE test is a commercially available ready-to-apply patch test widely used in many countries, but no large-scale study is available on the TRUE test in Korea. Objective: The purpose of this study was to analyze the type, frequency, and changes in the common contact allergens in Korea using the TRUE test. Methods: From January 2009 to March 2010, TRUE tests were performed on patients with contact dermatitis at the Departments of Dermatology of 15 hospitals. The epidemiological findings of patients, and the results of the patch tests were analyzed. Results: In total, 795 patch tested cases (246 males, 549 females) were compiled and analyzed. The oldest age distribution was the third decade in both males and females, and housewives and office-workers were the most common jobs, comprising 29.7% and 19.8% of the occupations, respectively. Overall, 65.1% of patients had at least one positive reaction, and the most common allergens were nickel sulfate (34.1%), thimerosal (12.6%), cobalt chloride (11.1%), and p-phenylenediamine (8.4%), in order of frequency. A univariate analysis of multiple variables including age, gender, occupation, and affected sites was conducted and a comparison with a previous multicenter study was also analyzed. Conclusion: These results provide the basis for use of the TRUE test in patients with contact dermatitis in Korea. (Korean J Dermatol 2011;49(8):661∼669)