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김백조 ( Baek Jo Kim ),김경식 ( Kyung Sik Kim ),장기호 ( Ki Ho Chang ),박종길 ( Jong Kil Park ) 한국환경과학회 2013 한국환경과학회지 Vol.22 No.3
In this study, the cause of rapid intensity change of typhoon Nakri(0208)in view of point of a trough typhoon interaction Using diagnostic methods was examined based on 6 hourly GDAPS data from 10 to 13 July, 2002. At 0000 UTC 13 July, high PV(Potential Vorticity)region moved southeastward, reaching to the western edge of the Korean peninsula and near typhoon center at surface and there shows an increasing value of EFC(Eddy Momentum Flux Convergence). Also, as the trough and typhoon approach one another at the same time, the vertical shear(850 200 hPa) Increases to more than15 m/s. Thus, it might be coneluced that the trough typhoon interaction made intensified significantly. providing the fact that typhoon Nakri(0208) underwent substantial weakening while moving northward to around Jeju island.
구리(Ⅱ)-아민류 착물에 의한 l-ascorbic acid의 산화반응속도와 메카니즘
김선덕,박정은,장기호,신한철,김창수,Kim, Sun-Deuk,Park, Jung-Eun,Jang, Ki-Ho,Shin, Han-Chul,Kim, Chang-Su 대한화학회 1995 대한화학회지 Vol.39 No.1
구리(II)-아민류 착물에 의한 l-ascorbic acid의 산화반응속도를 pH 4.6에서 Onishi 방법으로 측정하였다. 이 반응의 메커니즘은 l-ascorbic acid가 구리(II) 착물에 배위된 다음 속도결정단계에서, 전자이동이 일어나는 내부권 메커니즘에 따라 반응이 진행됨을 알았다. The rates for the oxidation reaction of l-ascorbic acid by Cu(Ⅱ)-polyamine complexes were measured by Onish's method at the pH 4.6. The oxidation process of l-ascorbic acid is proposed to occur by the inner-sphere mechanism that involves the formation of a Cu(Ⅱ)-ascorbic acid complex and electron transfer at the rate-determining step.