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서원영(Won-Young Seo),이병호(Byoung-Ho Lee),배성용(Sung-Yong Bae) 대한조선학회 2011 대한조선학회 학술대회자료집 Vol.2011 No.6
Rectangular tanks in contact with fluid are used in various fields of civil, mechanical and marine engineering. Especially in the marine engineering, resonance from exciting force of an engine and propeller causes fatigue damages of tanks. Vibration characteristics of these tanks in contact with fluid are significantly affected by added mass of fluid. Therefore, it is very important to estimate the added mass effect to predict vibration of the tank structures. However, it is difficult to estimate exactly the effect of added mass because of a fluid-structure interaction problem, free surface, vibration modes of structural panels and the depth of water. In this paper, each vibration mode of panels is calculated to consider structural coupling effects between side plates of a deep tank and added mass changing the height of the tank. A numerical tool using finite elements in plates and boundary elements in fluid region is used to analyse the three dimensional tank structure in contact with fluid.
전시장 유니버설디자인 가이드라인 작성을 위한 기초연구 - 국립중앙박물관을 중심으로 -
서원영(Seo, Won Young),이경훈(Lee, Kyung-Hoon) 대한건축학회 2020 대한건축학회 학술발표대회 논문집 Vol.40 No.1
The purpose of this study is to develop a tool to evaluate the exhibition environment from a universal design perspective and to analyze the National Museum of Korea as an example. With the development of a welfare society, interest and investment in cultural spaces are increasing, yet there are many limitations in such environment, not considering various people. Therefore, in this paper, an evaluation element was derived by reviewing literatures and guidelines, and based on this, the National Museum of Korea will be investigated to identify the points to be modified and suggest improvement.
UX(사용자 경험)분석을 통한 앱 인터페이스 개선에 관한 연구 - 대학생 학사관리 사이트를 중심으로
김예람(Yea Ram Kim),서원영(Won Young Seo),임성빈(Seong Bin Im),임태하(Tae Ha Lim),이원섭(Won Seop Lee) 한국HCI학회 2021 한국HCI학회 학술대회 Vol.2021 No.1
This study aims to research and propose a mobile application interface design prototype for college student’s academic management from the user’s point of view. Interviewing users who have experienced the student website of Handong University to which the research team belongs, the academic management system (HISNet) is causing inconvenience in terms of visibility, accessibility, and ease of use, and is not optimized for mobile size and not providing personalized information. Based on the user’s experience, we designed a new app interface and applied the Kansei engineering theory to conduct the user test from an emotional engineering perspective. This study’s significance is that it finds problems from students’ experiences who are the primary agents of the use of the academic management system and that it is a design designed directly by students.
용접된 박판의 고유진동수에 판의 두께와 경계조건이 미치는 영향에 관한 연구
박도윤(Do-Yun PARK),서원영(Won-Young SEO),배성용(Sung-Yong BAE) 한국수산해양교육학회 2019 水産海洋敎育硏究 Vol.31 No.3
Welding is the main method of manufacturing a structural product that could be applied to shipbuilding, construction, automobile and other industrial fields. So, it is a ground reason for such continuous researches those are actively going on for welding optimization, strength and rigidity of the Welded structure. Furthermore, Welding could change the rigidity and mass of an object that is highly critical to determine the Natural frequency of the object. So the research on the possibility of changeable Natural frequency shall be critically considered at the basic design stage of the whole construction process. Therefore, this study will work on the qualitative trend of welding on Natural frequency of the Thin plate.
이천식(Cheon Sik Lee),서원영(Won Young Seo),오성웅(Seong Ung Oh),이재준(Jae Jun Lee),김종인(Jong In Kim),이성주(Seong Joo Lee) 대한내과학회 1988 대한내과학회지 Vol.35 No.3
N/A One hundred and sixty five cases of uper gastrointestinal bleeding were examined by fiberoptic endoscopy at Busan Medical Center from July 19S4 to June 1987. The results obtained were as follows; 1) The sex incidence of upper gastrointestinal bleeding revealed a greater prevalence in males than in females with a ratio of 4 to 1 and the peak age group were in the 5th and 6th decades. 2) The causative disease which were found to protace upper gastrointestinal bleeding were in the order of frequency of peptic ulcer (43.0%), esophageal varices (21.8%), hemorrhagic gastritis(18.8%), stomach cancer (9.1%), Mallory-Weiss syndrome (3,6%) and marginal ulcer. The incidence of upper gastrointestinal bleeding of unknown origin was 3.1%. 3) On of cyamination the mode of upper gastrointestinal bleeding, the incidence of melenal only was noted in 36.4% of the cases, hemestasis only in 32.7% and hematemesis with melena in 30.9%. 4) The severity of upper gastrointestinal bleeding was classified by cammock's criteria as massive in 46.1%, moderate in 40.0% and mild in 13.9% of the cases. 5) The frequency of upper gastrointestinal bleeding at admission was first time bleeding in 41.8% of the cases, second time bleeding in 20.0% third time bleeding in 17.0% and over third time bleeding in 21.2%. 6) The success rate in identifying the bleeding site in relation to the time of endoscopy after upper gastrointestinal bleeding began was 69.4% within 24 hours, 54.3% in 24-48 hours, 17.9% In 48-72 hours and 7.7% after 7 days, The success rate fell with increasing time after upper gastrointestinal bleeding began, 7) The factors which influenced the outcome of upper gastrointestinal bleeding was age, severity of bleeding and episode of bleeding. The overall mortality rate was 9.7%