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서울의 Penicillinase Producing Neisseria gonorrhoeae 발생빈도(1997)
김재홍,문득곤,김정수,김용준,임동진,박상훈,김희성,이민수,송기훈,김갑형,김형석,성소영,이인섭,김석우,황지환,조창근,김경문,부태성 대한화학요법학회 2000 대한화학요법학회지 Vol.18 No.3
Background : In recent years, gonorrhea has been pandemic and remains one of the most common STDs in the world, especially in developing countries. Objective & Methods : For the detection of a more effective therapeutic regimen and assessing the prevalence of PPNG, we have been trying to study the patients who have visited the Venereal Disease Clinic of Choong-Ku Public Health Center in Seoul since 1980 by means of the chromogenic cephalosporin method. Results : In 1997. 99 strains of N. gonorrhoeae were isolated, among which 45(45.5%) were PPNG. Conclusion : The prevalence of PPNG in Seoul, which had been decreased to 39% in 1996 after a peak of 74.3% in 1993, is increased to 45.5% in 1997.
조득희,이영길,박상언 한국화학공학회 1990 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.28 No.3
냉동증류법을 이용하여 C_8-방향족화합물의 여러 혼합물로부터 고순도의 p-크실렌을 분리하였다. 냉동증류의 과정 중 액상혼합물이 결정화되는 성분의 어는 점 이하로 과냉각되는 현상이 관찰되었으며 원료중의 p-크실렌 함량이 적을수록 수율이 감소하는 경향들 보였다. 그러나, 원료 중의 p-크실렌의 함량에 따른 제한이 있었으며 그 이하의 함량에서도 고순도 분리가 이루어지기 위하여서는 완전한 단열조건이 필요함을 알았다. Super-pure p-xylene was obtained from the various combinations of C_8 aromatics by the distillative freezing method. The super-cooling effect was observed during distillative freezing operation. As the concentration of impurities in feed increased, the yield of product decreased. However, it was found that the concentration of p-xylene at feed composition was limited to get super-pure p-xylene. And adiabatic conditions during experiment should be considered as a great importance through distillative freezing operation.
유리섬유 강화 활성탄소섬유의 제조와 산성 가스 흡착에 관한 연구
김동표,조득희,이형근,민동수,정애영 한국공업화학회 1998 응용화학 Vol.2 No.1
The activation carbon has mostly high surface areas over 1000㎡/g but has prepared by expensive process. So the study on using with activation carbon is very active. We prepared glassfiber reinforced activation carbon fabric with using glassfiber and novolac phenolic resin and activated CO₂, NH₃, N₂ gas. Besides we adsorbed SO_X with activated samples and measured surface areas by a method of BET.