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디지털컨텐츠를 포함한 웹기반 정보시스템의 재구성을 위한 비즈니스 프로세스 및 항해 모델링
최상수,황성하,박학수,장수진,이강수,Choi Sang-Su,Hwang Sung-Ha,Park Hark-Soo,Jang Soo-Jin,Lee Gang-Soo 한국디지털콘텐츠학회 2002 한국디지털콘텐츠학회논문지 Vol.3 No.1
Recently, digital contents systems have been constructed by means of a Web-based Information Systems(WBIS). However, developers supper from the Web Crisis since there is no systematic methodology for development and maintenance of the WBIS. To partially cope with the problem, we propose web-based business process and navigation modeling methods for efficient restructuring of a WBIS. A Business Process Net model is the business process model. Additionally, system structure model, state transition model, and user interaction model are the navigation models. These models might be useful for development and restructuring of a WBIS which includes digital contents.
최상수,Choi, Sang-Su Korea Association for International Commerce and I 2007 통상정보연구 Vol.9 No.2
This research empirically examined changes in the images of Korea over three points in time among Japanese, Chinese, and U.S. visitors to South Korea. Between March 14 and May 31, 2005, about two to three months after the 2005 Seoul International Sports & Leisure Industry Show ended, 153 tourists from America, 129 from China, and 156 from the Japan completed the survey instrument. The results from a General Linear Model (GLM) with repeated measures showed that tourists from all three countries had more positive images after the Seoul International Sports & Leisure Industry Show than before it. It was concluded that the 2005 Seoul International Sports & Leisure Industry Show appeared to have a significant positive effect in enhancing the image of South Korea. The study suggests that an internationally significant trade Show can change the image of a tourism destination in a short time period.
제조라인 통합 설계 및 분석(II) – 디지털 가상생산 기술 적용을 통한 지속적인 라인 설계, 분석 및 최적화 프로세스
최상수(SangSu Choi),성낙윤(Nakyun Sung),신연식(Yeonsik Shin),노상도(Sang Do Noh) (사)한국CDE학회 2014 한국CDE학회 논문집 Vol.19 No.2
Generally, over 95% of manufacturing cost is determined in the design and manufacturing preparation step, especially a great part of productivity is determined in the manufacturing preparation step. In order to improve the manufacturing competitiveness, we have to verify the problems that can be occurred in the production step and remove the unnecessary factors in the manufacturing preparation step. Thus, manufacturing industries are adopting digital manufacturing system based on modeling & simulation. In this paper, we introduce e-FEED system (electronic based Front End Engineering and Design) that is the integrated design and analysis system for optimized manufacturing line development based on simulation automation and explain the work process (Design, Analysis and Optimization) about manufacturing line development using e-FEED system. Also, the effect is described through the real implementation cases.
제조라인 통합 설계 및 분석(I) - 디지털 가상생산 기술 적용을 위한 모델링 & 시뮬레이션 자동화 시스템
최상수(SangSu Choi),현정호(Jeongho Hyeon),장용(Yong Jang),이범기(Bumgee Lee),박양호(Yangho Park),강형석(HyoungSeok Kang),전찬모(Chanmo Jun),정진우(Jinwoo Jung),노상도(Sang Do Noh) (사)한국CDE학회 2014 한국CDE학회 논문집 Vol.19 No.2
In manufacturing companies, different types of production have been developed based on diverse production strategies and differentiated technologies. The production systems have become smart, factories are filled with unmanned manufacturing lines, and sustainable manufacturing technologies are under development. Nowadays, the digital manufacturing technology is being adopted and used in manufacturing industries. When this technology is applied, a lot of efforts, time and cost are required and training professionals in-house is limited. In this paper, we introduce e-FEED system (electronic based Front End Engineering and Design) that is the integrated design and analysis system for optimized manufacturing line development on virtual environment. This system provides the functions that can be designed easily using library and template based on standardized modules and analyzed automatically the logistic and capacity simulation by one-click and verified the result using visual reports. Also, we can review the factory layout using automatically created 3D virtual factory and increase the knowledge reuse by e-FEED system.
디지털 트윈 기반 역사 공기질 통합 모니터링 및 분석 시스템
최상수(SangSu Choi),우정엽(Jungyub Woo),송인호(Inho Song) 대한기계학회 2022 大韓機械學會論文集A Vol.46 No.1
지하철 역사의 미세먼지 절감을 위한 ICT 기반의 연구들이 활발히 수행되고 있다. 본 연구에서는 디지털 트윈 기반 통합 공기질 모니터링 및 분석 시스템을 소개한다. 이 시스템은 (1) 지하철 역사에 설치된 다양한 IoT 센서로부터 데이터들을 수집하여 엣지 디바이스를 통해 디지털 트윈에 전달하고, (2)실제와 동일한 실감형 3D 디지털 트윈을 통해 현재의 상황을 모니터링하며, (3) AI와 CFD 시뮬레이션 기술을 통해 공기질의 예측을 수행하여 최적의 공기질 상황으로 역사를 유지할 수 있도록 돕는다. 이 시스템을 강남역에 적용하여 결과를 분석했다. ICT-based studies are being actively conducted to reduce fine dust in subway stations. In this study, an integrated air quality monitoring and analysis system based on a digital twin was introduced. This system provided the following functionalities: (1) collected data from various IoT sensors installed in subway stations, and delivered it to the digital twin through edge devices; (2) monitored the current situation through realistic 3D digital twin, and (3) helped to maintain the optimal air quality of subway stations through air quality prediction, using AI and CFD simulation technology. Results were analyzed by applying the system to Gangnam station.