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선박 블록 단위의 대용량 JT 파일을 안드로이드 기기에서 가시화하는 방법
천상욱(Sanguk Cheon),서흥원(Heung-Won Suh) (사)한국CDE학회 2013 한국CDE학회 논문집 Vol.18 No.4
In shipbuilding, 2D manufacturing drawings are crucial for building a ship. Even various types of 3D models are being utilized for supporting ship manufacturing, which does not reduce the importance of 2D drawings. Recently things are changing in the shipbuilding industry. To reduce the number of 2D drawings or to reduce the quantity of information contained in 2D drawings, some attempts that can substitute for 2D drawings are being made. One of the attempts is to visualize lightweight 3D manufacturing models in a mobile device. In this paper, a method for displaying lightweight 3D models of a ship in an Android based device is introduced. To overcome the problem with parsing JT files in Android system, JT files are parsed in a Windows based server and as-simple-as-possible visualization data are transmitted to an Android based viewer. A comparison result with a commercial system is also given.
조선 PLM 환경에서 경량 CAD 모델에 대한 요구사항 분석 및 적용 사례
천상욱(Sanguk Cheon),이지훈(Ji-Hoon Lee),박광필(Kwang-Phil Park),서흥원(Heung-Won Suh) (사)한국CDE학회 2013 한국CDE학회 논문집 Vol.18 No.4
Introduction of PLM in domestic shipyards is being retarded as ship PLM has yet to firm up return of investment and process integration. To implement a ship PLM system, it is required to share ship CAD model data in various design and manufacturing environments. Lightweight CAD models provide a promising solution for sharing CAD models in the product life cycle, which can expedite implementation of ship PLM in domestic shipyards in the near future. Compared to proprietary CAD models, it is easy for lightweight CAD models to be interfaced with various application systems and be connected to manufacturing information. In this paper, the reason why lightweight CAD models are necessary to implement a ship PLM system is addressed and current implementation results are introduced.
서상욱,임미진,오재영,Suh, Sanguk,Lim, Mijin,Oh, Jae Young 한국포장학회 2017 한국포장학회지 Vol.23 No.2
The amount of delivered parcels have been increasing according to the change and expansion of consumption pattern through e-commerce, and they are required to minimize breakout or failure under the delivery. In this study, we measured and analyzed the distribution environment data (vibration and impact) occurred in the packaging, which were prepared with 5 types by the weight and dimension, distributed from Seoul to Busan in Korea by 2 parcel delivery service companies through e-commerce order. Date showed the parcels had 3-5 times of drop impact and 0.3-0.7 m of drop height on average, and 0.8 Grms of vibration acceleration from equivalent equation to the vertical direction. The significant gap in service quality was not found between 2 parcel delivery service companies. This study is expected to be useful for designing the suitable packaging in order to enhance safe transportation of the delivered packaging, and furthermore useful for developing Korean testing method for Field-to-Lab simulation.
Inhibitory effect of tartrate against phosphate-induced DJ-1 aggregation
Kim, Min Soo,Lee, Sangmin,Yun, Sanguk,Suh, Pann-Ghill,Park, Jongmi,Cui, Minghua,Choi, Sun,Cha, Sun-Shin,Jin, Wook Elsevier 2018 INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES Vol.107 No.2
<P><B>Abstract</B></P> <P>The DJ-1 protein engages in diverse cellular and pathological processes, including tumorigenesis, apoptosis, sperm fertilization, and the progression of Parkinson’s disease (PD). The functional dimeric form of DJ-1 transforms into non-functional filamentous aggregates in an inorganic phosphate (P<SUB>i</SUB>)-dependent manner in vitro. Here, we demonstrated that P<SUB>i</SUB> and reactive oxygen species (ROS) induce DJ-1 aggregation in Neuro2A and SH-SY5Y cells. Remarkably, tartrate treatment significantly reduced P<SUB>i</SUB>- and ROS-induced DJ-1 aggregation and restored P<SUB>i</SUB>- and ROS-provoked cell death using quantitative data as mean±standard deviation, and statistics. Mechanistically, tartrate prevented DJ-1 aggregation via occupying the P<SUB>i</SUB>-binding site. These findings revealed an unexpected physiological role of tartrate in the maintenance of DJ-1 function, and thus, a potential use as an inhibitor of DJ-1 aggregation.</P>