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U-City 기술 분류체계를 통한 추진 단계별 유관기관 역할 분석
이응만(Eungman Lee),이성표(Sungpyo Lee),이영훈(Younghun Lee),조은상(Eunsang Cho) 한국정보기술학회 2009 한국정보기술학회논문지 Vol.7 No.4
This study presents limitations for the roles and the responsibilities of the related business entities because it is very important that the controversy is minimized during a progressive period of the project. In this study, we analyze several Ubiquitous city projects undertaken by the local governments and raised some issues. We construct the step-by-step procedures for the Ubiquitous city construction business management from the business plan to management after completion of the Ubiquitous city construction and establish the clear-cut duty ranges for the related business entities at each step.
박신증(Sinjeung Park),김용우(Yong Woo Kim),이응만(Eungman Lee),한재원(Jae Won Hahn) Korean Society for Precision Engineering 2007 한국정밀공학회지 Vol.24 No.11
We have designed a high transmission C-shaped aperture using finite differential time domain(FDTD) technique. The C-shaped aperture was fabricated in the aluminum thin film on a glass substrate using a focused ion beam(FIB) milling. Nano-size patterning was demonstrated with a vacuum contact device to keep tight contact between the Al mask and the photoresist. Using 405 nm laser, we recorded a 50 nm-size dot pattern on the photoresist with the aperture and analyzed the spot size dependent on the dose illuminated on the aperture.