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대면적 임프린트 장비의 스테이지 정렬운동 과정에서 LCD Glass 변형에 대한 시뮬레이션 연구
송영중(Youngjoong Song),신동훈(Donghoon Shin),임홍재(Hongjae Im),장시열(Siyeol Jang),이기성(Keesung Lee),정재일(Jayil Jeong) 한국생산제조학회 2007 한국공작기계학회 춘계학술대회논문집 Vol.2007 No.-
The purpose of the study is to simulate the displacement of the LCD glass during process of a large size imprint. During alignment process to fix the LCD glass on a alignment stage, the vertical displacement is made by the absorption pressure and the shear stress. This study simulates the vertical displacement depending on the shape of absorption surface fixing the LCD glass in the alignment process, and the horizontal and vertical displacement which occurs in the LCD glass at the alignment process. Algor which is a FEM code for a framework simulation was applied. The vertical displacement due to the circular is ten times of the case of rectangular absorption nozzle. The displacement of the LCD glass in the alignment process is about 49㎚.
Thermal Environmental Control Simulation For Large Size Imprint Equipment
송영중(Youngjoong Song),신동훈(Donghoon Shin),임홍재(Hongjae Im),장시열(Siyeol Jang),정재일(Jayil Jeong) 대한기계학회 2007 대한기계학회 춘추학술대회 Vol.2007 No.10
The purpose of the study is to simulate the displacement of the LCD glass during process of a large size imprint. During this process, a small temperature variation makes thermal stress, which causes the horizontal variation of mold and glass. During alignment process to fix the LCD glass on a alignment stage, the vertical displacement is made by the absorption pressure and the shear stress generated by align movement. This study simulates the horizontal displacement of mold and glass due to temperature variation, the vertical displacement depending on the shape of absorption surface fixing the LCD glass on alignment stage, and the horizontal and vertical displacement which occurs in the LCD glass at the alignment process. Algor which is a FEM code for a framework simulation was applied. Temperature variation above ± 0.1℃ on mold and glass causes the horizontal displacement of 150㎚ due to thermal expansion. The vertical displacement due to the circular absorption nozzle is ten times of the case of rectangular absorption nozzle. The estimated displacement of the LCD glass in the alig㎚ent process is about 4.9㎚.
장시성,이대중,송지훈,박도휘,전찬용,황귀서 대한한방내과학회 2022 大韓韓方內科學會誌 Vol.43 No.1
Objective: In this study, we investigated the protective effect of rhododendron mucronulatum extract (RME) on allergic reactions and inflammation. Methods: The effect of RME was determined using ELISA and RT-PCR in RBL-2H3 mast cells and RAW 264.7 macrophage cells. We determined cell viability, β-hexosaminidase release, and the synthesis of IL-4 and TNF-α in RBL-2H3 cells. In addition, we determined NO from RAW 264.7 and the gene expression of IL-1β, iNOS, IL-6, TNF-α, and IL-10. Results: RME inhibited β-hexosaminidase release and synthesis of IL-4 and TNF-α in RBL-2H3 by the anti-DNP IgE plus DNP-HSA stimulation. In addition, RME inhibited the production of NO and the gene expression of IL-1β, iNOS, IL-6, and TNF-α in LPS-stimulated RAW 264.7 cells. Conclusion: From these results, we concluded that RME possesses anti-allergic activity and anti-inflammatory activity due to the inhibition of mast cells and macrophage function.
대면적 임프린트 장비를 위한 LCD Glass 변형 시뮬레이션 연구
송영중(Youngjoong Song),신동훈(Donghoon Shin),임홍재(Hongjae Im),장시열(Siyeol Jang),이기성(Keesung Lee),정재일(Jayil Jeong) 대한기계학회 2007 대한기계학회 춘추학술대회 Vol.2007 No.5
The purpose of the study is to simulate the displacement of the LCD glass during process of a large size imprint. During this process, a small temperature variation makes thermal stress, which causes the horizontal variation of mold and glass. During alig㎚ent process to fix the LCD glass on a alig㎚ent stage, the vertical displacement is made by the absorption pressure and the shear stress. This study simulates the horizontal displacement of mold and glass due to temperature variation, the vertical displacement depending on the shape of absorption surface fixing the LCD glass in the alig㎚ent process, and the horizontal and vertical displacement which occurs in the LCD glass at the alig㎚ent process. Algor which is a FEM code for a framework simulation was applied. Temperature variation above ± 0.1℃ on mold and glass causes the horizontal displacement of 150㎚ due to thermal expansion. The vertical displacement due to the circular is ten times of the case of rectangular absorption nozzle. The displacement of the LCD glass in the alig㎚ent process is about 49㎚.