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정찬세(C. S. Jeong),이형욱(H. U. Lee),정영만(Y. M. Jeong),윤두환(D. H. Yun),이창돈(C. D. Lee),양순용(S. Y. Yang) 한국생산제조학회 2009 한국공작기계학회 추계학술대회논문집 Vol.2009 No.-
The solenoid valve is basic part of industry and used widely. Especially the solenoid valve used on pneumatic system. Port size more than 80mm from the pneumatic system products used precipitator system and generator system and any heavy industrial system. That means some place of need much industrial water and need high pressurt control with little power. So they use multi-stage solenoid valve. This paper describe mention of valve simulation with AMESim and 3D modelling for development of multi-stage solenoid valve and character of valve performance based on orifice diameter of valve diaphragm.
정찬세(C. S. Jeong),이형욱(H. U. Lee),정영만(Y. M. Jeong),이창돈(C. D. Lee),양순용(S. Y. Yang) 한국생산제조학회 2010 한국생산제조학회지 Vol.19 No.4
The air suction filter of the power plant decrease the dust and impurities of suction air that reduce the life and efficiency of the boiler. The suction efficiency of the air filter falls with the dust and impurities when the time of use comes to be long. Therefore, the various contaminant of the filter must remove periodically. This paper presents a developed quick exhaust valve to use in the thermo-electric power plant. to removing contaminants on tbe filter, the blowing is done shortly by air pressure. The Air flowed out to the out side from the inside of the filter. The performance test of the developed valve is done by making a test-bench according to JIS and KS standards. The efficiency is found higher than the existing related valve.
정찬세,이형욱,정영만,이창돈,양순용,Jeong, C.S.,Lee, H.U.,Jeong, Y.M.,Lee, C.D.,Yang, S.Y. 한국생산제조학회 2010 한국생산제조학회지 Vol.25 No.6
The air suction filter of the power plant decrease the dust and impurities of suction air that reduce the life and efficiency of the boiler. The suction efficiency of the air filter falls with the dust and impurities when the time of use comes to be long. Therefore, the various contaminant of the filter must remove periodically. This paper presents a developed quick exhaust valve to use in the thermo-electric power plant. to removing contaminants on the filter, the blowing is done shortly by air pressure. The Air flowed out to the out side from the inside of the filter. The performance test of the developed valve is done by making a test-bench according to JIS and KS standards. The efficiency is found higher than the existing related valve.
포스터 전시 : 담도,췌장 ; 신경섬유종증을 동반한 췌장암 1예
김영환 ( Y. H. Kim ),이태규 ( T. K. Lee ),김성수 ( S. S. Kim ),방춘상 ( C. S. Bang ),채현석 ( H. S. Chae ),한석원 ( S. W. Han ),이창돈 ( C. D. Lee ),최규용 ( K. Y. Choi ),정인식 ( I. S. Chung ),선희식 ( H. S. Sun ),박도호 대한소화기학회 2002 대한소화기학회 춘계학술대회 Vol.2002 No.-
<증례> 54세 남자 환자가 전신쇄약감과 현기증을 주소로 내원하였다. 과거력상 심방세동 있었으며 가족력상 특이 사항 없었다. 이학적 소견상 만성병색 소견을 보이고 결막이 창백해보였으며 두경부 검사와 흉부 청진상 특이 소견 없었다. 복부 촉진상 상복부의 경미한 압통이 있었고 복부와 등, 얼굴 피부에도 밀크 커피색 반점을 동반한 다양한 크기의 종괴들이 관찰되었다. 검사실 소견에서 Hemoglobin 7.5g/dl, Hematocrit 24.0% 백혈구수 9