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김신규(Sin Kyu Kim),이형원(Hyung Won Lee),김인종(In Jong Kim),이마세(Ma Se Lee) 대한약학회 1992 약학회지 Vol.36 No.3
Benzo[C]phenanthidine alkaloids were found to exhibit considerably strong antileukemic activies. These alkaloids have been shown to be biosynthesized from the corresponding alkaloids throung an oxidative C6-N bond cleavage followed by recyclization between C6 and C13 position of the protoberberine. Recently we have achieved the biomimetic transformation of protoberberine alkaloid, berberine into benzo[C]phenanthridine alkaloid, chelerythrine.
강우로 인해 고속도로로부터 유출되는 폐기물의 성상, 부하량 및 유출 특성
김이형 ( Lee Hyung Kim ),강주현 ( Joo Hyon Kang ) 한국물환경학회 2004 한국물환경학회지 Vol.20 No.5
Litter wastes on highway runoff are gradually being considered one of the major pollutants of concern in protecting the integrity of receiving waters for beneficial use. The California State Water Resources Control Board has identified in their 303(d) list at least 36 water bodies where trash or litter is considered a pollutant of concern. The first TMDL adopted by the Region 4 (Los Angeles area) of the California State Water Quality Control Board was for trash in the Los Angeles River. The first flush characteristic study was developed to obtain first flush water quality and litter data from representative stormwater runoff from standard highway drainage outfalls in the Los Angeles area. Total captured gross pollutants in stormwater runoff were monitored at six Southern California highway sites over two years. The gross pollutants were 90% vegetation and 10% litter. Approximately 50% of the litter was composed of biodegradable materials. The event mean concentrations show an increasing trend with antecedent dry days and a decreasing trend with total runoff volume or total rainfall. Event mean concentrations were ranged 0.0021 to 0.259 g/L for wet gross pollutants and 0.0001 to 0.027 g/L for wet litters. The first flush phenomenon was evaluated and the impacts of various parameters such as rainfall intensity, drainage area, peak flow rate, and antecedent dry period on litter volume and loading rates were evaluated. First flush phenomenon was generally observed for litter concentrations, but was not apparent with litter mass loading rates. Litter volume and loading rates appear to be directly related to peak storm intensity, antecedent dry days and total flow volume.
창의적 사고능력 증진을 위한 공학설계입문 교과목 및 사례 개발
김이형,이병식,Kim Lee-Hyung,Lee Byung-Sik 한국공학교육학회 2005 공학교육연구 Vol.8 No.3
정보통신의 발달과 기술의 개발은 세계를 국제화 및 지식정보화 사회로의 급격히 변화시키고 있다. 이에 따라 공과대학에서의 공학교육도 급변하는 추세에 발맞추어 국제적 인재 양성이라는 교육목표로의 수정을 요구받고 있다. 국제적으로 인정받는 인재라는 것은 팀에서의 팀원 및 리더로서의 역할을 수행할 수 있는 인재, 사회에서의 다양한 학제간의 융합에 부응할 수 있는 인재, 사회적 및 국제적 의사소통기술을 겸비한 인재, 전공에 있어서 기초 및 응용을 충분히 습득한 인재 등으로 요약된다. 따라서 본 연구는 이러한 인재양성을 위하여 공과대학의 저학년들을 위한 공학설계입문이라는 교과목을 개발하고자 한다. 공과대학 학생들을 위한 공학설계입문의 교과목 개발 목표는 창의적 설계 주제 연구를 통하여 팀웍기술 배양, 문제해결 능력 향상, 의사소통 기술 증진 및 공학에 대한 창의적 사고방식을 갖춘 국제적 인재양성을 목표로 하고 있다. Currently social and economical situations of the world including Korea are tremendously changing because of developments of various technologies including information technology. It is well known that the current world is society of globalization, knowledge and information. In order to accomodate the engineering education of Korea to the world standards, many researches about engineering education should be studied. Therefore, the purpose of this research is to develope the course of 'Introduction to Engineering Design' for undergraduate students in engineering schools. The graduates from the engineering schools should have various communication skills such as presentation, report preparation, language skills, etc. Also the graduates have to change their mind from passivity to creativity for their works. The other important things for graduates are improvement of the teamwork skills in the team and improvement of project management skills. Therefore, this paper will present the processes of the course development and the contents of the course concerning teamwork, inventive thinking, project management, and presentation skills.
김희천,박찬진,김택수,유찬우,이형원,Kim, Hee-Chern,Park, Chan-Jin,Kim, Taek-Su,Yoo, Chan-Woo,Lee, Hyung-Won 한국정보처리학회 2012 정보처리학회논문지D Vol.19 No.4
디자인 패턴은 기존 소프트웨어의 설계 정보를 추상화하는 단위로 사용될 수 있다. 소프트웨어의 기능을 확장하기 위해 설계를 파악하고자 할 때 디자인 패턴의 인스턴스를 파악하는 것 만으로는 충분치 않을 수 있는데, 이는 기능의 확장이 일어나는 지점이 패턴 인스턴스 바깥에 존재할 수 있기 때문이다. 본 논문에서는 디자인 패턴의 핵심적인 구조를 구성하는 과정으로서 레퍼런스 흐름을 정의하였으며, 레퍼런스 흐름을 이용하여 패턴의 확장 지점을 찾아내는 방법을 제시하였다. Sometimes it is not sufficient to identify design pattern instances for extension of software, because the extension points exist outside of the instances. We define reference flows, which is a process of composing an intrinsic structure of design patterns, and suggest an analysis method based on reference flows for identifying the extension points.