http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
공공 건설사업 CM at Risk 적용시 GMP 산출 프로세스
김건성 ( Kim Gun-sung ),김정훈 ( Jin Zheng-xun ),현창택 ( Hyun Chang-taek ) 한국건축시공학회 2020 한국건축시공학회 학술발표대회 논문집 Vol.20 No.1
Recently the diversification of construction market and the continuous reduction of construction amount are raising the need of alternative delivery method in the construction industry. The foreign advanced companies actively adopted the CM at Risk delivery method where they perform the service of agent CM in the design phase, and agree GMP(Guaranteed Maximum Price) with the client at the time of 50~80% completion of design. Even in Korea they began to apply that method to pilot projects. In CM at Risk, through the early participation of builder, the level of design completion can be improved and the change order and construction period delay can be minimized. On the other hand, GMP is usually calculated when the design is about 80% complete, so there is uncertainty in the construction cost. Therefore, in this research, the increased amounts of construction cost are analyzed in a number of public construction projects, and GMP calculation process is proposed using the analysis results and CBR(Case-Based Reasoning) technique to reduce the construction cost increase in the construction phase.
전봉현,김건성,정신영,노미석,Xuan-Hung Pham,강호만,조명행,김종호,이윤식,정대홍 대한화학회 2015 Bulletin of the Korean Chemical Society Vol.36 No.3
Surface-enhanced Raman scattering (SERS) has attracted considerable interest as a sensitive vibration-specific probe for bioanalytical and imaging applications. Among the various bioprobes available, Ag-embedded SERS tags have been rigorously developed for an extensive range of biodetection applications. In this review, we look at the additional functionality that SERS tags can offer via its magnetic properties, fluorescence, and an extension of the optical region into the near-infrared (NIR) spectrum. Such functionality can be achieved by using Ag nanoparticles (NPs) or Au/Ag hollow-shells (HS) as a SERS signaling unit, with SiO2 nanospheres providing a back-bone unit. This back-bone can include a magnetic core (M-SERS dots), but also provides an outer shell that protects the optical unit and allows for easy conjugation of linkers that can include fluorescent organic dyes for an additional optical unit (F-SERS dots). In use, M-SERS dots allow for the separation of target cancer or cancer stem cells with an external magnetic field, while F-SERS dots can rapidly locate specific proteins within large areas of tissue and simultaneously analyze multiple targets based on their Raman signals. Moreover, NIR SERS dots can be detected with a high sensitivity within deep tissues, thus allowing them to be applied to in vivo multiplex detection. As none of these advanced functional SERS dots exhibit any sign of cytotoxicity for cell lines, they demonstrate a clear potential for more efficient, high-throughput screening of biological molecules using Raman technology.
Study of I layer deposition parameters of deposited micro-crystalline silicon by PECVD at 27.12MHz
이기세(Lee, Kise),김선규(Kim, Sunkue),김선영(Kim, Sunyoung),김상호(Kim, Sangho),김건성(Kim, Gunsung),김범준(Kim, Beomjoon) 한국신재생에너지학회 2010 한국신재생에너지학회 학술대회논문집 Vol.2010 No.06
Microcrystalline silicon at low temperatures has been developed using plasma enhanced chemical vapor deposition (PECVD). It has been found that energetically positive ion and atomic hydrogen collision on to growing surface have important effects on increasing growth rate, and atomic hydrogen density is necessary for the increasing growth rate correspondingly, while keeping ion bombardment is less level. Since the plasma potential is determined by working pressure, the ion energy can be reduced by increasing the deposition pressure of 700-1200 Pa. Also, correlation of the growth rate and crystallinity with deposition parameters such as working pressure, hydrogen flow rate and input power were investigated. Consequently an efficiency of 7.9% was obtained at a high growth rate of 0.92 nm/s at a high RF power 300W using a plasma-enhanced chemical vapor deposition method (27.12MHz).