• 교육시설
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• 제5권1호
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• pp.44-52
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• 1998

Nowadays, social environment is rapidly changed toward globalization and information age, and which demands the new paradigm for active utilization of information system in the field of education and many others. The effort to adapt tele-communication technique to educational facilities and the planning to make virtual university come true are needed immediately. Intelligent Building system should be applied to educational facilities to cope with the changing and progressing building system. As a result of the surveying eleven domestic universities, it was found that library management system, administration automation system and office automation system were already introduced, but campus infrastructure such as network system and tele-communication system between buildings in campus have been constructed now. As the conclusion of this study, impeding factors and improvement direction for active utilization of intelligent building systems in university facilities were presented.

• 한국BIM학회 논문집
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• 제11권3호
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• pp.55-66
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• 2021

Recently, Building Information Modeling(BIM) has become a hot topic in the construction industry such as quantity calculation, interference check, process management, and construction cost management. It is also trying to convert the existing 2D design to 3D design and introduce the BIM in various fields, thus, many new deliverable are being presented but there are many issues due to the lack of standard guides on the preparation and delivery criteria for such new deliverable and how to utilize performance data. Therefore, In order to develop the electronic delivery process, we analyzed the process related to the delivery of BIM digital models presented in domestic and international BIM guidelines and the delivery of products from the Korea National Railway. The analysis focused on the list of achievements, delivery process, quality review standards, and the utilization code system of the Korea National Railway through BIM guidelines and the National Railroad Service's business procedures. Based on these analysis results, it presents a plan to construct an functional module of electronic delivery.

• 정보관리학회지
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• 제12권2호
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• pp.151-169
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• 1995

본 논문에서는 멀티미디어 대학도서관 정보망 환경상에서 구현될 정보시스템의 이론적인 틀을 구성한 다음 정보시스템 모형의 일부 기능을 멀티미디어 저작 도구를 가지고 실제 구현해 보았다. 시스템 모형은 JANUS Virtual Library, The Book House등과 같은 실제 시스템들을 기초로하여 구성하였고 시스템 구현에 사용된 지식베이스는 참고사서들과의 면담을 통해 얻은 데이터를 이용하여 구축하였다. 구현된 시스템은 참고 전문가시스템, 학술지 브라우징, 멀티미디어 데이타베이스, 온라인 열람목록, 외부 데이타베이스, 이용 안내의 6개의 모듈로 구성된다. 결론에서는 멀티미디어 대학도서관 정보망을 구현하기 위해서 해겨해야 할 문제점들을 제시하였다.

• Journal of Information Processing Systems
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• 제17권2호
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• pp.284-296
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• 2021

The cloud has already become the core infrastructure of information systems, and government institutions are rapidly migrating information systems to the cloud. Government institutions in several countries use private clouds in their closed networks. However, because of the advantages of public clouds over private clouds, the demand for public clouds is increasing, and government institutions are expected to gradually switch to public clouds. When all data from government institutions are managed in the public cloud, the biggest concern for government institutions is the leakage of confidential data. The public-private-partnership (PPP) cloud provides a solution to this problem. PPP cloud is a form participation in a public cloud infrastructure and the building of a closed network data center. The PPP cloud prevents confidential data leakage and leverages the benefits of the public cloud to build a cloud quickly and easily maintain the cloud. In this paper, based on the case of the PPP cloud applied to the Korean government, the concept, architecture, operation model, and contract method of the PPP cloud are presented.

• 국제학술발표논문집
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• The 7th International Conference on Construction Engineering and Project Management Summit Forum on Sustainable Construction and Management
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• pp.321-327
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• 2017

China is experiencing the urbanization at an unprecedented speed and scale in human history. The continuing growth of China's big cities, both in city land and population, has already led to great challenges in China's urban planning and construction activities, such as the continuous increase of construction and demolition (C&D) waste. Therefore, how to characterize cities' construction activities, particularly dynamically quantify the flows of building materials and construction debris, has become a pressing problem to alleviate the current shortage of resources and realize urban sustainable development. Accordingly, this study is designed to employ 4D-GIS (four dimensions-Geographic Information System) and Internet Plus to offer new approach for accurate but dynamic C&D waste management. The present study established a spatio-temporal pattern and material metabolism evolution model to characterize the geo-distribution of C&D waste by combing material flow analysis (MFA) and 4D-GIS. In addition, this study developed a mobile application (APP) for C&D waste trading and information management, which could be more effective for stakeholders to obtain useful information. Moreover, a cloud database was built in the APP to disclose the flows of C&D waste by the monitoring information from vehicles at regional level. To summarize, these findings could provide basic data and management methods for the supply and reverse supply of building materials. Meanwhile, the methodologies are practical to C&D waste management and beyond.

• 한국BIM학회 논문집
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• 제2권2호
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• pp.10-16
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• 2012

본 연구는 토목분야 사회기반시설물의 유지관리체계에 BIM 기술을 도입하기 위해 필요한 사항을 도출하는 것을 그 목적으로 한다. 이를 위해 국내외 BIM 가이드라인 현황을 조사하였으며, 각 가이드라인에서 언급된 내용의 유사성을 기준으로 건축분야에서 다루는 BIM 가이드라인에 대한 공통의 프레임워크를 도출하여 토목분야에서 준비가 필요한 항목들을 분류하였다. 또한 건축분야 BIM 가이드라인에서 언급된 시설물 유지관리에 관한 관점과 토목분야 시설물 유지관리에 관한 관점을 상호 비교하였다. 이러한 분석 내용을 바탕으로 토목분야 사회기반시설물 유지관리에 BIM 기술을 도입하기 전 준비되어야 하는 사항을 응용모델의 발굴, 표준화, 그리고 제도정비로 구분하여 제시하였다.

• Journal of Information Technology Applications and Management
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• 제29권5호
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• pp.13-25
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• 2022

The purpose of this study is to explore the factors that influence the purchase of AI speakers in China. We integrate the Unified Theory of Acceptance and Use of Technology (UTAUT) and Task-technology fit (TTF) model into one model and put forward assumptions. According to the characteristics of AI speakers, we selected 6 independent variables, such as Performance Expectation, Effort Expectation, Social Influence, Facilitating Conditions, Task and Technology-characteristics. The final impact on purchase behavior is evaluated through Task-technology fit and purchase intention. After counting 478 samples, through SPSS22.0 and AMOS analysis, hypotheses have been proved by strong experimental data, except facilitating conditions. These results also imply that improving the technical level of AI speakers and enhancing consumers' purchasing intention are the central line of marketing. Based on this, we put forward several suggestions to marketers, including strengthening the research and development of AI speaker technology, and building a circle of friends of AI speakers.

• 한국수자원학회:학술대회논문집
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• 한국수자원학회 2015년도 학술발표회
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• pp.243-243
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• 2015

Low-flow simulation and forecasting is one of the emerging issues in hydrology due to the increasing demand of water in dry periods. Even though low-flow simulation and forecasting remains a difficult issue for hydrologists better simulation and earlier prediction of low flows are crucial for efficient water management. The UN has never stated that South Korea is in a water shortage. However, a recent study by MOLIT indicates that Korea will probably lack water by 4.3 billion m3 in 2020 due to several factors, including land cover and climate change impacts. The two main situations that generate low-flow events are an extended dry period (summer low-flow) and an extended period of low temperature (winter low-flow). This situation demands the hydrologists to concentrate more on low-flow hydrology. Korea's annual average precipitation is about 127.6 billion m3 where runoff into rivers and losses accounts 57% and 43% respectively and from 57% runoff discharge to the ocean is accounts 31% and total water use is about 26%. So, saving 6% of the runoff will solve the water shortage problem mentioned above. The main objective of this study is to present the hydrological modelling approach for low-flow simulation and forecasting using a model that have a capacity to represent the real hydrological behavior of the catchment and to address the water management of summer as well as winter low-flow. Two lumped hydrological models (GR4J and CAT) will be applied to calibrate and simulate the streamflow. The models will be applied to Seolmacheon catchment using daily streamflow data at Jeonjeokbigyo station, and the Nash-Sutcliffe efficiencies will be calculated to check the model performance. The expected result will be summarized in a different ways so as to provide decision makers with the probabilistic forecasts and the associated risks of low flows. Finally, the results will be presented and the capacity of the models to provide useful information for efficient water management practice will be discussed.

• 한국건축시공학회지
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• 제10권1호
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• pp.127-135
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• 2010

복합, 대형화되는 건설현장에서 사용되는 건설정보들의 양은 방대해지고 이에 따라 효율적인 건설현장 관리의 중요성이 대두되기 시작하였다. 따라서 본 연구에서는 BIM의 이론적 고찰과 국내외 사례조사를 통해서 BIM의 적용 현황 및 가능성을 파악하고 건설현장의 수행단계별, 협업주체별 중심의 분석을 통해서 효율적인 건설현장 관리모델의 구축 방향을 제시하고자 한다. BIM을 적용하여 목적 건축물의 3D Modeling을 통한 2D 도면의 시각화, 도면 오류의 사전 발췌로 시간적, 금전적 손실을 최소화, 3D 모델의 물량정보로 예산 작성의 정확성을 향상, 정확한 도면의 건축정보와 물량정보로 공사 진행 방향 설정에 확실성을 부여 및 부위별 객체 정보를 포함한 BIM기반의 건설정보를 바탕으로 공정관리를 통한 원가관리, 품질관리가 가능함을 알 수 있었다. 이 과정을 통해 BIM정보를 통합하고 연계함으로써 현장과 각 협업주체들 간의 건설현장 관리의 효율성을 향상이 가능하다고 판단된다. 추후에는 실제 건설현장 관리모델을 구축하고 실제 건설현장에 적용하여 검증을 하는 연구가 필요하다.

• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2015년도 제52차 하계학술대회논문집 23권2호
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• pp.321-322
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• 2015

본 연구는 BIM의 최종 모델(As-built Model)이 BIM기반 유지관리 시스템(Facility Management System)에 활용되는 것을 전제로 하며 유지관리 분야 중 공간관리 분야에서 활용되는 BIM 모델을 구축하기 위한 방안을 제시한다. 연구의 최종 결과물인 BIM 유지관리 가이드라인은 향후 BIM 발주 지침에 반영되어 건설과정에서 구축된 BIM 정보를 유지관리 단계까지 지속적으로 활용하도록 유도할 것이라 기대한다.