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성토지지말뚝공법 중 섬유보강재의 인장력 검토에 관한 연구
문인호(Moon In-ho),박종관(Park Jong-Gwan),이일화(Lee Il-Wha) 한국철도학회 2008 한국철도학회 학술발표대회논문집 Vol.- No.-
Road or Railway construction over soft ground is needed to be considered on secondary consolidation which will be caused differential settlement, lack of transport serviceability, higher maintenance cost. Especially for the railway construction in the second phase of Gyung-Bu or Ho-Nam high speed railway, concrete slab track has been adapted as a safe and cost effective geotechnical solution. In this case controlling the total settlement under the tolerance is essential. And pile supported geogrid reinforced construction method is suggested as a solution for the problem of the traditional method on soft soil treatments. Pile supported geogrid reinforced construction method consists of piles that are designed to transfer the load of the embankment through the compressible soil layer to a firm foundation. The load from the embankment must be effectively transferred to the piles to prevent punching of the piles through the embankment fill creating differential settlement at the surface of the embankment. The arrangement of the piles can create soil arching to carry the load of embankment to the piles. In order to minimize the number of piles geogrid reinforced pile supported construction method is being used on a regular basis. This method consists of one or more layers of geogrid reinforcement placed between the top of the piles and the bottom of the embankment. This paper presents several methods of pile supported geogrid reinforced construction and calculation results from the several methods and comparison of them.
공기 부상바식 이송시스템의 추진 노즐 배치방법에 따른 웨이퍼 이송 속도 평가
문인호(In-Ho MOON),김동권(Dong-Kwon KIM),조상준(Sang-Joon CHO),황영규(Young-Kyu HWANG) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.5
In this study, the wafer transportation speed was evaluated by numerical and experimental method for three injection nozzle array(face, front, rear) in an air levitation system. Test facility for 300 ㎜ wafer was equipped with two control tracks and a transfer track of 1.5 m length. The diameter and air velocity of injection nozzle are 0.8 ㎜, 50~100㎧ respectively. When the numerical results compared with experimental results of maximum wafer transportation speed, the numerical results are higher by 16%. The numerical result of mean wafer transportation speed is higher than experimental result about 20% in front array and 18% in face array.
Stocker 시스템에 적용한 고효율 비접촉 전원시스템 개발
황계호(Gye-Ho Hwang),김원곤(Won-Gon Kim),윤종보(Jong-Bo Yun),문인호(In-Ho Moon),이봉섭(Bong-Seob Lee),민병재(Byung-Jae Min),김동희(Dong-Hee Kim) 한국조명·전기설비학회 2010 조명·전기설비학회논문지 Vol.24 No.2
최근, LCD(Liquid Crystal Display) 산업에서 클린룸의 규모가 커짐에 따라 Stocker 시스템의 사이즈가 커지고 길이가 장거리화 되고 있다. 이에 제조업체는 생산수율을 높이기 위해 Stocker 시스템의 전체 택타임을 줄이기 위한 방안으로 Stocker 시스템의 속도 증가와 고유가 시대에 여러 장비들에 대한 에너지 절약을 통한 공장 운영비용이 최소화되도록 요구하고 있다. 따라서 본 논문은 차세대 Stocker 시스템의 에너지 절감과 이송 속도증가에 따른 고효율 비접촉 전원시스템(CPS, Contactless Power Supply)의 최적설계를 제안하고, 에너지 절감을 위한 비접촉 전원시스템의 시제품을 제작하여 부하인 크레인의 여러 운전 패턴에 따른 비접촉 전원시스템의 실증시험과 입/출력 특성, 효율 개선에 따른 최적화로 개발된 비접촉 전원시스템의 에너지 절감 효과에 대하여 서술하였다. Recently, As increasing cleanroom size, Stocker system is trending the large size and long distance for LCD material transfer system. In order to rise a rate of production, the manufacturer are on the decrease of total tact time with Stocker system. And the manufacturer are requested to high speed of next generation Stocker system. Also manufacturers for the high oil prices through energy-saving conservation to minimize plant operating costs are required. Therefore, this paper propose optimal design of high efficiency Contactless Power Supply(CPS) system about high speed and energy savings of next generation Stocker system. This paper proposes CPS system is applied in the long distance and straight section with Stocker system for energy savings. The test results of input/output characteristic and efficiency of CPS system on operating pattern of Stocker system were analyzed, and proved the applicability on commercial use.