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상황버섯 추출물이 항염증 및 항알레르기, 항산화, 주름제거에 미치는 실험적 연구
윤우식,정현아,노석선,Yun, Woo-Sik,Jung, Hyun-A,Roh, Seok-Seon 대한한방안이비인후피부과학회 2010 한방안이비인후피부과학회지 Vol.23 No.1
Objectives : This study was carried out to investigate the effects of Phellinus igniarius Quel extract on the Anti-inflammatory, Anti allergy, Anti-oxidant and Anti-wrinkle. Methods : To investigate in vitro anti-oxidant activity assay, ethanol extracts of medicinal plants tested by DPPH method. In the next experiment, to investigate anti-inflammatory test, the RAW 264.7 macrophage cells was cultured using DMEM including the 10% FBS. To study anti-allergic effect, we blended cultured Human Mast Cells(HMC-1), and then observe TNF-$\alpha$, IL-8 by ELISA Results : Phellinus igniarius Quel extract has the effects of anti-inflammation and anti-allergy, which may be due to its inhibitory potential on the macrophage activation. Furthermore, Phellinus igniarius Quel extract has the anti-wrinkle effects through the inhibitory potential on the collagnease, elastase and gelatinase activities. Conclusions : The above results suggest that Phellinus igniarius Quel extract could be applicable for improvement of several skin functions.
Manual w/reg의 Glass 하강 필드 문제점 재현 시험법 발굴 연구 활동
윤우식,최건용,송영남 한국자동차공학회 2023 한국자동차공학회 부문종합 학술대회 Vol.2023 No.5
Recently, automakers have been making various efforts to stabilize quality and satisfy customers by strengthening field claims analysis activities to improve product reliability and expanding the scope of product guarantees. In order to improve the quality of suppliers, automakers require performance tests and field claim reproduction tests that assume the environment of the field (consumer usage conditions) to analyze the cause of the problem, establish improvement measures, and validate the improved products. This study aims to improve the problem by reproducing the problem of glass falling while driving in vehicles with manual window regulators for vehicles, and to verify the field claim of new vehicles in advance in the development process. The purpose of this test method is to improve the effect of preventing claims by proactively verifying the problem of glass descent.
윤우식(Woosik Yoon),안호준(HoJun Ahn),안준희(JunHee Ahn),조항성(HangSung Cho) 한국자동차공학회 2022 한국자동차공학회 부문종합 학술대회 Vol.2022 No.6
Recently, electric vehicles are forming a faster market than in the past. In order to cope with this market, automakers are showing their moves to increase the mass production of electric vehicles. However, unlike the rapidly changing market, The criteria for determining parts are the same as before. Accordingly, the difference in the power supply method between the internal combustion engine and the electric vehicle is different from ES SPEC, causing confusion in the determination. It is intended to extract problems that may occur when the voltage increases and to reset the determination criteria of Door module.