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차석준(Seok-Jun Cha),이성용(Seong-Yong Lee),김지관(Jiekwan Kim) 한국산업경영시스템학회 2015 한국산업경영시스템학회 학술대회 Vol.2015 No.추계
Design in small hydro power systems is the detailed work required a variety of epidemiological considerations. However, turbine designers were often feel the limitations due to repetitive calculations or drawings, rather than focusing on finding the turbine performance and efficiency improvements. Furthermore, miss the point in repeating the procedure design process or cross the interface is not easy to keep track of the changes required parameters should also feel the difficulties in efficient design. Improve this unreasonable points, though he design part is insufficient understanding of the hydro turbine, to automate the design to exclude the repetitive operations is the purpose of this study
김영준(Young-Jun Kim),장재은(Jae-Eun Jang),이상욱(Sang-Wook Lee),차석준(Seok-Jun Cha) 유기성자원학회 2013 유기물자원화 Vol.21 No.1
본 연구에서는 염소류 산화물질 가운데 가장 반응성이 크고 인체에 무해하며 트리할로메탄 등 독성물질 생성의 염려가 없는 차아염소산수를 이용하여 수족관 해양 동물의 사육수내 존재하는 암모니아의 제거를 위한 실험을 진행하였다. 암모니아 제거에 필요한 차아염소산수 용액의 주입농도는 시료 내 암모니아 농도에 따라 달라졌으며, 차아염소산수대 암모니아의 농도비율이 8.5 ~ 9.0에서 30분간 반응시 약 90%의 제거효율을 보였고, 농도비율이 9.8 ~ 10.1에서 100% 제거되는 것으로 나타났다. 반응시간에 따른 제거효율은 농도비율 9.0 ~ 10.0대에서 대부분 10분내에 90%이상을 제거하는 것으로 나타났다. 본 연구결과는 해수 내 암모니아 제거를 위한 적정 차아염소산수의 주입농도와 비율, 반응시간 등을 선정하여 수질을 정화함으로써 대형수족관내 해양생물들의 보호 및 관리에 크게 기여할 것으로 기대된다. In this study, we had analyzed the ammonia removal efficiency in sea animal-culturing aquarium water using hypochlorous acid (HOCl) which is very reactive, no harm to human, and with no formation of toxic trihalomethane. The amount of hypochlorous acid for the removal of ammonia varied with the concentration of ammonia in samples, with 90% of removal efficiency for 30 minute reaction time in the sea water where the ratio of hypochloous acid to ammonia (w/w) is about 8.5 ~ 9.0, and 100% removal in the sample with the ratio of 9.8 ~ 10.1. The removal efficiency with the time was shown to be 90% within 10 minute in the ratio of 9.0 ~ 10.0. These results will effectively be used for the proper management and protection of sea animals in large aquarium through water clarification with hypochlorous acid by calculating the right amount and reaction time.
차석준,이성용 國立 昌原大學校 産業技術硏究所 1998 産技硏論文集 Vol.12 No.-
This study aims to explain the process of developing IETM. As the weapons system and equipment are highly advanced and electronically complicated, an effective method has been required to deal with the huge amount of information in the paper-based technical manual necessary to operate and to maintain the system. Furthermore, the vast amount of paper based technical information makes it difficult to control them in real time. This study suggests a way to solve these problems by using highly extended information technology such as network, database, data communication, etc. In this study, class 4 level IETM development has been attempted. Also, in all the IETM development process, the CALS standard has been used.