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이동길(Donggill Lee),최광무(Kwang-Moo Choe),전길남(Kilnam Chon) 한국정보과학회 1985 정보과학회논문지 Vol.12 No.2
A compiler for the subset of CHILL (CCITT High Level Language) is designed and implemented, considering the developing environment of ESS (Electronic Switching Systems). The compiler developed provides a basis for developing the production quality CHILL compiler KAIST CHILL compiler is developed using the powerful compiler-compiler tools, such as KAIST Parser Generating System and Amsterdam Compiler Kits. 본 연구에서는 ESS 개발환경을 고려하여 production quality CHILL compiler개발의 환경조성을 위한 CHILL subset compiler를 설계 제작하였다. KAIST Parser Generating System 등을 이용하여 front end를 설계 제작하였으며 Amsterdam Compiler Kit로 부터 back end와 intermediate machine의 환경을 제공받아 CHILL subset을 위한 compiler를 설계 제작하였다.
Xenon flashlamp와 광촉매를 이용한 타원형 반응기의 살균 특성에 관한 연구
이동길(Dong-Gil Lee),홍지태(Ji-Tae Hong),최경화(Kyoung-Hwa Choi),차재호(Jaeho Cha),김홍주(Hong-Ju Kim),김희제(Hee-Je Kim) 대한전기학회 2009 전기학회논문지 Vol.58 No.3
In this paper, we invented a new and unique technique for the sterilization of Escherichia coli(E. coli) in polluted water. We applied a rich ultra-violet(UV) light from pulsed xenon flashlamp and photocatalyst(TiO₂) to sterilize E. coli in polluted water. This method based on the use of UV light and photocatalyst is eco-friendly and does not cause secondary pollution. The proposed elliptical reactor is able to concentrate on quartz sleeve coated TiO₂ or general quartz sleeve. The primary objective of our research was to determine the important parameters such as pulse repetition rate and input voltage and to know on the sterilizing efficiency of quartz sleeve coated TiO₂ and general quartz sleeve. We obtained to achieve 99.999% sterilization in as little as 6 pulses at 800 V in case of quartz sleeve coated TiO₂, and 10 pulses at 800 V in case of general quartz sleeve for 5 minutes. Although transmitted light of quartz sleeve coated TiO₂ is deceased, the sterilizing efficiency is increased by 40% than general quartz sleeve. The reason of high sterilizing efficiency is that generated hydroxyl radical(OH) by photocatalyst and is able to concentrate light at a focus by using elliptical reactor.