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열적거동을 고려한 고속 내장형 스핀들 최적 설계에 관한 연구
박수성(Su Seong Park),정원지(Won Ji Chung),김수태(Da Woon Jung),정다운(Soo Tae Kim) 한국생산제조학회 2010 한국공작기계학회 추계학술대회논문집 Vol.2010 No.-
The thermal deformation of machine tool spindle influences the performance of the manufacturing systems for precision products. According to previous studies, major factors that will affect the stiffness of the spindle include spindle diameter, elasticity of the material, bearing stiffness and bearing span. It is difficult to change spindle diameter or elasticity of the material. but change of bearing position is easy in the given range compared to other factors. In this paper, we will find a solution to minimize thermal deformation through Change the span of the bearing.
열적거동을 고려한 고속 내장형 스핀들 최적 설계에 관한 연구
박수성(Su Seong Park),정원지(Won Ji Chung),김수태(Da Woon Jung),정다운(Soo Tae Kim) 한국생산제조학회 2010 한국생산제조시스템학회 학술발표대회 논문집 Vol.2010 No.10
The thermal deformation of machine tool spindle influences the performance of the manufacturing systems for precision products. According to previous studies, major factors that will affect the stiffness of the spindle include spindle diameter, elasticity of the material, bearing stiffness and bearing span. It is difficult to change spindle diameter or elasticity of the material. but change of bearing position is easy in the given range compared to other factors. In this paper, we will find a solution to minimize thermal deformation through Change the span of the bearing.
보문 : 1993~2011년의 신랑 메이크업과 헤어스타일 분석 -"마이웨딩" 잡지를 중심으로-
최은미 ( Eun Mi Choi ),이금희 ( Km Hee Lee ),정원지 ( Woon Ji Jung ) 대한미용학회(구 대한미용과학회) 2011 대한미용학회지 Vol.7 No.4
The present study aims to investigate the changes in the make-ups and hair styles of bridegrooms as found in the photographs taken at the wedding ceremonies during 1993 to 2011, a period when bridegroom`s make-ups and hair styling were practiced widely, and to provide the findings from basic cosmetic data to forecast the new changes in the trend of make-ups and hair styles of bridegrooms. From the analysis, it was evident that male make-ups until mid of 1990s looked like dressing and very unnatural but became a little bit natural, thick though, into the latter part of 1990s, and just in 2001~ 2011, the trend of male make-ups became much more natural and specialized thanks to development of male-specific cosmetics. Some changes have been made in male hair styles with the length of hair braided behind the ears and the nape line of the neck being shorter or longer with the form of hair cut differently, as well as styling with C-curl being brushed backward with help of mousse. Such changes in male make-ups and hair styles resulted in more smart and tidier look of males.