• 한국BIM학회 논문집
• /
• 제8권2호
• /
• pp.19-28
• /
• 2018

Recent increase in the interest and adoption of BIM for infrastructure projects has created a need for formal BIM guidelines in the civil engineering domain. Currently a BIM guideline has been developed in Korea exclusively for the road sector. However, the guideline has gaps in the specification of how BIM models should be generated, managed and applied for maximum effect in projects. This study reviewed the guidelines and tender documents of Singapore to determine potential improvements to adopt in Korea. Results showed that Korea's guideline should focus more on process integration as to stipulating BIM deliverables, encourage a common data environment, clearly distinguish between compulsory and selective BIM applications, and require data and models that can be leveraged in the operation phase of the facility.

• 한국방송∙미디어공학회:학술대회논문집
• /
• 한국방송공학회 1999년도 KOBA 방송기술 워크샵 KOBA Broadcasting Technology Workshop
• /
• pp.201-206
• /
• 1999

Though a demand for 3-D CG (Three-Dimensional Computer Graphics) drastically increases, traditional modeling system for virtual objects are very difficult to handle. Applying VR (Virtual Reality) technology is, however, able to make the modeling systems more efficiently and intuitively. In this paper, traditional modeling operations are analyzed and their problems are clarified. We discuss what can be improved with VR technology. Then, a guideline of merging VR technology into the modeling system is described. A new modeling system is proposed using a CAVE system which is utilized in the latest VR technology. This proposed system aids in creating 3-D objects with high immersion in VEs (Virtual Environments)

• 한국IT서비스학회지
• /
• 제5권2호
• /
• pp.107-123
• /
• 2006

The objectives of this study is to develop a strategy for the adoption of BPM(Business Process Management) standards and an implementation guideline of the BPM standard for BPM solution developers focusing on BPEL(Business Process Execution Language) which is regarded as the most important BPM standard. In the heterogeneous and distributed IT environments, every type of enterprise software requires standards to enhance interoperability. BPMS(Business Process Management System), which is a type of enterprise software requires BPM standards such as BPEL(Business Process Execution Language), BPMN(Business Process Modeling and Notation), BPQL(Business Process Query Language) and so on to achieve multi-system interoperability and component interoperability with their BPM solutions. It is quite helpful to provide the adoption strategy concerning BPM standards for each type of BPM solution vendors who need the BPM standards. Since the BPEL is conceived as the most important BPM standard and widely adopted by many BPM vendors, we have proposed a reference architecture for BPEL implementation and also developed the detail implementation guideline of core components of the BPM system supporting the BPEL standard. Using the strategy and implementation guideline proposed in this work, BPM solution vendors can establish their own standard adoption strategy and they can also develop their BPM solutions supporting the BPM standards more efficiently.

• 한국가스학회지
• /
• 제2권4호
• /
• pp.7-17
• /
• 1998

본 연구는 화학장치설비중 가압 염소포화액체 저장탱크의 2상흐름 연속누출에 대한 유해위험거리(또는 독성완충거리)를 정량적으로 예측하기 위한 결과영향 모델링 방법론을 개발하기 위한 것이다. 누출원 모델링은 미환경청의 가이드라인에 근거한 정교한 해석방법과 SuperChems 모델의 자체계산에 의하여 각각 수행되었다. 유해위험성 평가에서 법적 독성규제농도로서 사용되는 STEL, IDLH 및 ERPGs (ERPG-2와 ERPG-3) 농도들에 대하여 유해위험거리를 예측하였다. 비상대응계획 수립시 유해위험성 평가의 가이드라인으로 활용하기 위하여 특히 ERPG-2 농도에 대하여 누출원특성 및 기상변화들의 유해위험거리에 미치는 영향을 고찰하였다.

• 한국건축시공학회:학술대회논문집
• /
• 한국건축시공학회 2009년도 추계 학술논문 발표대회
• /
• pp.253-256
• /
• 2009

To the success of the megaproject including various and complex facilities, it is needed to establish a database system. Developments in data collection, storage and extracting technology have enabled iPMIS to manage various and complex information about cost and time. Especially, when we consider that both the go and no go decision in feasibility, Cost is an important and clear criteria in megaproject. Thus, Cost data modeling is the basis of the system and is necessary process. This research is focus on the structure and definition about CBS data which is collected from sites. We used four tools which are Function Analysis in VE, Casual loop Diagram in System Dynamics, Decision Tree in Data-mining, and Normalization in SQL to identify its cause and effect relationship on CBS data. Cost data modeling provide iPMIS with helpful guideline.

• 한국정보처리학회:학술대회논문집
• /
• 한국정보처리학회 2001년도 추계학술발표논문집 (상)
• /
• pp.473-476
• /
• 2001

최근 기존 정보시스템에 고객이나 사용자의 다양한 요구사항이나 기업의 환경 변화를 반영하여 새로운 정보시스템으로 재구축하는 경향을 보이고 있다. 이를 통해 기업들에서 경쟁 우위를 선점함으로써 보다 우세한 경쟁력을 갖출 수 있다. 본 논문에서는 정보시스템 재구축을 위한 프로세스 모델링(Process Modeling)과 데이터 모델링(Data Modeling)을 체계적으로 수행하는 방안을 제시하고, 이를 실제로 적용한 사례를 보여준다. 정보시스템의 전체적인 관점에서의 요구사항 및 기존 정보시스템의 미비사항을 분석하여 정보화 대상을 추출하는 프로세스 모델 분석(Process Model Analysis) 단계와 정보화 대상을 개념 모델로 전환하는 논리 데이터 모델링(Logical Data Modeling) 단계, 실제 컴퓨터에 저장하여 사용하는 물리 데이터 모델링(Physical Data Modeling) 단계로 구성된다.

• 한국전자거래학회지
• /
• 제11권4호
• /
• pp.107-122
• /
• 2006

기업간 거래에서 전자결제는 지속적으로 확대되고 있으며, 이에 따라 전자결제를 지원하는 정보시스템의 개발도 활발하게 이루어지고 있다. 이러한 환경에서 전자결제시스템은 다양한 전자결제 메커니즘들을 수용하도록 개발되어야 하고 이를 위해서는 전자결제 프로세스를 표준적인 방법으로 모델링 할 필요가 있다. 본 연구에서는 전자결제 메커니즘을 모델링 하는데 있어서 다양한 비즈니스 프로세스 모델링 기법들의 적합성을 분석하고, 이를 바탕으로 전자결제 메커니즘의 비즈니스 프로세스 모델링 지침을 제시하고자 한다. 본 연구의 결과는 전자방식을 이용하여 결제하는 비즈니스 프로세스를 모델링하고 전자결제시스템을 개발하는데 좋은 지침이 될 수 있을 것이다.

• Smart Structures and Systems
• /
• 제19권1호
• /
• pp.67-90
• /
• 2017

The interdisciplinary research area of small scale energy harvesting has attracted tremendous interests in the past decades, with a goal of ultimately realizing self-powered electronic systems. Among the various available ambient energy sources which can be converted into electricity, wind energy is a most promising and ubiquitous source in both outdoor and indoor environments. Significant research outcomes have been produced on small scale wind energy harvesting in the literature, mostly based on piezoelectric conversion. Especially, modeling methods of wind energy harvesting techniques plays a greatly important role in accurate performance evaluations as well as efficient parameter optimizations. The purpose of this paper is to present a guideline on the modeling methods of small-scale wind energy harvesters. The mechanisms and characteristics of different types of aeroelastic instabilities are presented first, including the vortex-induced vibration, galloping, flutter, wake galloping and turbulence-induced vibration. Next, the modeling methods are reviewed in detail, which are classified into three categories: the mathematical modeling method, the equivalent circuit modeling method, and the computational fluid dynamics (CFD) method. This paper aims to provide useful guidance to researchers from various disciplines when they want to develop and model a multi-way coupled wind piezoelectric energy harvester.

• 한국전산구조공학회:학술대회논문집
• /
• 한국전산구조공학회 2008년도 정기 학술대회
• /
• pp.470-475
• /
• 2008

Building Information Modeling(BIM) is rooted in the economic and functional advantages of maturing from paper-based 2D drawings. The paper-based design and construction drawings are typical production from BIM and using the drawing under BIM environment is needed because there is not an alternative media instead of paper-based drawings. However using the 2D drawing process based on 2D CAD for BIM environment directly has difficulties because there are significant differences in data structure between CAD and BIM. CAD is based on traditional drawings as a whole while BIM is focused on individual objects and providing various levels of information associated with the objects. It can be an obstacle to move from 2D CAD to BIM that we don't have a standard or guideline for BIM. Futhermore, the complexity of drawing in representation would be the obstacle too, so the solution is discussed in the research based on the case of Samoo Architects and Engineers.

• 한국군사과학기술학회지
• /
• 제18권5호
• /
• pp.594-601
• /
• 2015

The purpose of this research is to propose a maintenance support system for deciding assembly sequence of the product and appropriate tools that are used to assembly and disassembly of parts in the product when geometric properties of the product. The digital maintenance system (DMS) is developed to generate the maintenance guideline and the initial experiment is conducted especially for an underwater weapon system with cylindrical structure. DMS considers four factors to find the efficient assembly and disassembly procedure automatically: (1) assembly tree, (2) properties of each part, (3) distance from the center of the product, and (4) volume. Based on the factors, DMS simulate the movement of each tool virtually and the properties of tools are investigated to find an appropriate tool for using assembly and disassembly of each part in the product. The proposed approach integrates modeling, simulation, data configuration, and virtual reality to allow a development of preliminary maintenance guidance.