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대학부설 과학영재교육원의 교육활동에 대한 대학생이 된 수료생의 평가
염승렬,장경애,김선자,정병훈,박종욱 한국과학교육학회 2008 한국과학교육학회지 Vol.28 No.1
To evaluate the educational programs at Science Education Center for the Gifted (SECG) on how it had influenced its graduates, we have surveyed the graduates with questionnaires categorized into four sections: scientific motivation, self-confidence, knowledge/inquiry activities, and peer-to-peer interactions. Of the graduates who studied at SECG for more than two years and are currently attending college, we questioned 26 students and interviewed 10 students. According to our research data, most students evaluated highly the quality of education they received at SECG; especially, in the areas of science knowledge/inquiry activities and social interactions with their peers. Based on the results from the interviews, for these gifted students with highly developed aptitude in science, we concluded that interactions with real-world scientists, investigative approach to and application of newly-learned scientific concepts, and emphasis on interactive activities with other gifted students at SECG were regarded as effective in promoting motivations towards science and self-confidence.
김성동,김전희,염승렬,백순기 동신대학교 환경연구소 1997 환경연구 Vol.2 No.1
BOD, 질소, 인 등이 다량으로 함유된 고농도 유기성 폐수는 BOB, 인, 질소 등 일부 오염물질의 농도가 현저하게 높거나 C/N비의 균형이 좋지 않은 특성 때문에 처리가 곤란할 뿐만아니라, 적정한 처리공정을 도입하는 것 또한 어려운 실정이다. 이에 따라 고농도 유기성 폐수 배출시설중 화학공장의 폐수를 처리대상 폐수로하여, 각각의 공정에서 배출되는 다른 성상의 폐수를 합한 원폐수를 초음파를 이용하여 무화(霧化 : fogginess)시킨 후 무화 전후의 BOD, COD, SS, N-H과중금속의 제거율을 분석한 결과, BOD, 55, N-H의 제거율은 높았으며 중금속의 제거에는 영향을 미치지 않는 것으로 나타났다. High concentration organic wastewater has been discharged out of industries. These industries are food industries, chemical industries, fiber industries, spinning factories, paper mill manufactories or night soil and stock breeding. Its wastewater was treated to fogginess using Ultrasonic Wave. Due to development of wastewater treatment technique, it is investigated by technique previous to the treatment. Acording to fogginess frequency, it was analysised variation of pollutants concentration. The conclusions are as fallows. Most pollutants were removed by fogginess using Ultrasonic Wave, while heavy metals were not removed Removal effect of BOD, COD, SS, N-H, T-N, T-P developed a tendency to decrease according to frequency.