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논문 : 정밀여과법 하수재이용 공정에서 오존의 전처리 효과에 관한 연구
문성용 ( Seong Yong Moon ),안세혁 ( Se Hyuk Ahn ),이상협 ( Sang Hyup Lee ),박종훈 ( Jong Hoon Park ),홍석원 ( Suk Won Hong ),최용수 ( Yong Su Choi ) 대한상하수도학회 2006 상하수도학회지 Vol.20 No.4
The Ozone oxidation process was applied to increase the efficiency of reuse process when treating the secondary effluent by the membrane system. This paper focus on decreasing efficiency of membrane fouling, because of membrane fouling reduction by ozone and evaluation of application of the ozone oxidation. The feed water was secondary effluent from BNR process. The result shows that the ozone pretreatment can reduce membrane fouling effectively. Also, the improvement of treated water quality was obvious. The reduction of the membrane fouling led decrease of following pollutant and increase of Inner adsorptive ability of hydrophilic organic matter and decrease of molecular weight. MF membrane process alone can meet the domestic reuse water standards. And ozone pretreatment process also can increase the removal rates of turbidity, COD, nitrogen, and color.
문성용(Seong-Yong Moon),임성훈(Sung-Hoon Lim) 대한치과의사협회 2014 대한치과의사협회지 Vol.52 No.10
Computer aided surgery is popular and useful in the field of oral and maxillofacial surgery, because of the possibility of simulation with a high accuracy. In all aspects of surgery, proper planning facilitates more predictable operative results, however before the use of virtual planning, much of this relied on 2 dimensional (2 D) imaging for treatment planning on a 3 dimensional (3 D) object and surgical trial and error. With real time instrument positioning and clear anatomic identification, a computer assisted navigation system (CANS) is exceptionally helpful in maxillofacial surgery. These techniques enable performing precise bony ablation and reconstruction, and also decrease surgical time and donor site defect.