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마그네슘 코어를 적용한 조향 휠의 성능 평가 및 개선에 관한 연구
곽대영(Daeyoung Kwak),송기동(Kidong Song),최형호(Hyoungho Choi),이동협(Donghyoup Lee) 한국자동차공학회 2003 한국자동차공학회 춘 추계 학술대회 논문집 Vol.- No.-
It is well known that the steering wheel is one of the most important safety parts for reducing occupant injuries at crash situations and has a significant effect on NVH performances. In the present investigation, various comparative experimental tests for<br/> evaluating performances of the steering wheel with the Mg core in terms of NVH. strength, and impact energy absorbing capabilities were performed. Also, in order to obtain the improved steering wheel design, numerical simulations for correlating with<br/> the experimental results and then predicting performances of the modified steering wheel design were carried out. Through these studies, it was construed that the developed steering wheel with the Mg core has satisfactory NVH, strength and energy absorbing<br/> performances. Also, it was predicted that the modified Mg core design could have the better performances compared to the current<br/> ONE
CAN에 의한 Three Carbon Alcohols의 酸化反應速度에 관한 硏究
宋基東 조선대학교 기초과학연구소 1980 自然科學硏究 Vol.3 No.1
The oxidation reaction rate constants of the three carbon alcohols by CAN (Ceric Amonium Nitrate) were measured. The reaction rate of oxidation of 1,2-propylene glycol is two times faster than that of the iso-propyl alcohol but ten time slower than that of the glycerol. It means that more alcohol groups a compound has, the lesser the electron density of the carbon and the stability of the complex become. The oxidation reaction rate of the compound with double bond on the carbon becomes faster than that of the compound with single bond. But the effect of double bond is smaller than that of alcohol groups.