• 국제학술발표논문집
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• The 9th International Conference on Construction Engineering and Project Management
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• pp.222-229
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• 2022

Although stochastic programming and feedback control approaches could efficiently mitigate the overdue risks caused by inherent uncertainties in ground conditions, the lack of formal representations of planners' rationales for resource allocation still prevents planners from applying these approaches due to the inability to consider comprehensive resource allocation policies for hard rock tunnel projects. To overcome the limitations, the authors developed an ontology that represents the project duration estimation rationales, considering the impacts of ground conditions, excavation methods, project states, resources (i.e., given equipment fleet), and resource allocation policies (RAPs). This ontology consists of 5 main classes with 22 subclasses. It enables planners to explicitly and comprehensively represent the necessary information to rapidly and consistently estimate the excavation durations during construction. 10 rule sets (i.e., policies) are considered and categorized into two types: non-progress-related and progress-related policies. In order to provide simplified information about the remaining durations of phases for progress-related policies, the ontology also represents encoding principles. The estimation of excavation schedules is carried out based on a hypothetical example considering two types of policies. The estimation results reveal the feasibility, potential for flexibility, and comprehensiveness of the developed ontology. Further research to improve the duration estimation methodology is warranted.

• 대한설비공학회:학술대회논문집
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• 대한설비공학회 2009년도 하계학술발표대회 논문집
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• pp.409-414
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• 2009

The SK Chemical R&D center is an eco-friendly building designed as top score in the GBCC(GREEN BUILDING CERTIFICATE CRITERIA). This building has applied various eco-friendly technologies such as energy /water resource cutdown, improvement of indoor quality and improvement of user convenience, etc through eco-friendly concept from the design phase. In this thesis, an economic efficiency evaluation has been performed on building energy cwater resource cutdown technologies among them and the results are as follows. The building energy has cut down about 40% compared to ordinary buildings and the investment recovery period was shown as about 5 years. The water resource has cut down about 63% compared to ordinary buildings and the investment recovery period was shown as about 10 years.

• 한국컴퓨터정보학회논문지
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• 제17권1호
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• pp.105-115
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• 2012

본 연구는 방송콘텐츠를 일방향적인 정보전달도구의 차원이 아닌 풍부한 내용이 담긴 소프트웨어, 즉 단순히 정보를 제공하던 것에서 지식구성과 창출 과정을 촉진하는 학습자원으로서의 가능성에 주목하고, 이러한 가능성을 e-Learning의 교수 학습모형 중에 하나인 e-PBL을 통해 구체적으로 구현해 보고자 했다. 이를 위해 온라인 학습환경 설계 및 개발에 무게중심을 두고 연구를 진행했다. 특히, 본 연구는 온라인 학습커뮤니티 개발을 비롯하여 방송콘텐츠의 활용을 극대화하기 위한 전략적 방안들이 집약된 학습모듈 설계 및 개발과정에 초점을 두었다. 또한 이를 적용하고 그 타당성을 검증함으로서 학습모듈이 갖는 차별성을 증명하고자 하였다.

• Weed & Turfgrass Science
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• 제4권2호
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• pp.111-117
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• 2015

The equilibrium moisture contents (EMC) in seeds of four Echinochloa (E. crus-galli var. crus-galli, E. crus-galli var, echinata, E. crus-galli var. praticola, E. esculenta) were measured at $20^{\circ}C$ with equilibration over a series of lithium chloride solutions with relative humidities ranging from 0.11 to 0.8 to determine sorption isotherms and safe storage relative humidity. Standard seed sorption isotherm models i.e. modified Henderson, modified Chung-Pfost, modified Halsey, modified Oswin and Guggenheim-Anderson-deBoer (GAB) equations were adopted to evaluate the goodness of fit to sorption isotherms. This study indicated that EMC of seeds was significantly different in four Echinochloa species at various relative humidity. The modified Oswin equations for E. crus-galli var. crou-galli, E. crus-galli var, echinata, E. esculenta and GAB equation for E. crus-galli var. praticola were adequate models for the EMC data. Seeds of four Echinochloa species have monolayer moisture contents when stored at RH < 0.1. These results show that seed moisture isotherm model should be selected according to genetic variation.

• 한국정보기술응용학회:학술대회논문집
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• 한국정보기술응용학회 2005년도 6th 2005 International Conference on Computers, Communications and System
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• pp.361-364
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• 2005

Recently, many companies and consumers are using Internet to sell and buy goods and manage their businesses. And for most companies, they have Electronic Commerce system and Enterprise Resource Planning (ERP) system. But the two systems manage separately and the data are not integrative. So it is hard to mangement the system alike and the costs may be higher than the system which has intergrated information. ebXML-based Electronic Catalog (e-Catalog) can provide intergrated information. In this paper, we took a manufacturing industry company for example. We planned to construct the e-Catalog System, analyze the products of the company as well as design e-Catalog system using ebXML to connect EC with ERPs.

• 가족자원경영과 정책
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• 제9권4호
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• pp.41-61
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• 2005

As e-commerce is expanding rapidly, the consumer's damage in the e-commerce is also dramatically increased. This research was mainly focused on the consumer's damage experiences through the e-commerce, the consumer's behavior's when they were confronted with troubles, and the way to handle their damages in the e-commerce. Main findings are as follows. 1) More than $90\%$ of respondents answered that they had experienced troubles at least once out of 49 troubles listed in the questionnaire. 2) Most consumers did complain their damages actively and tried to obtain proper cure from the seller. 3) Normally, they were used to adjust their purchasing behaviors to avoid the problems rather than actively taking advantage of the official authorities or private consumer organizations to solve the problems.

• 정보보호학회논문지
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• 제18권5호
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• pp.181-188
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• 2008

E-Science Grid is designed to cope with computation-intensive tasks and to manage a huge volume of science data efficiently. However, certain tasks may involve more than one grid can offer in computation capability or incur a long wait time on other tasks. Resource sharing among Grids can solve this problem with proper processing-integrity check via audit. Due to their computing-intensive nature, the processing time of e-Science tasks tends to be long. This potential long wait before an audit failure encourages earlier audit mechanism during execution in order both to prevent resource waste and to detect any problem fast. In this paper, we propose a Light-weight, Adaptive and Reliable Audit, LARA, of processing Integrity for e-Science applications. With the LARA scheme. researchers can verify their processing earlier and fast.

• 정보관리학회지
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• 제27권3호
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• pp.307-323
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• 2010

정보환경의 변화에 따라 도서관과 웹 검색엔진의 차별성이 있음에도 불구하고 이용자들은 인터넷의 자원과 학술데이터베이스의 자원을 혼동하고 있다. 특히 구글스칼라와 같은 상업용 검색엔진의 검색속도 와 조작 편의성이라는 상대적 장점 때문에 학술데이터베이스가 갖고 있는 학술적 가치와 신뢰성에도 불구하고 이용자는 구글스칼라를 선호하고 있는 실정이다. 이 연구에서는 구글스칼라가 갖는 장점을 반영한 메타서치시스템의 특성과 가치를 인터페이스 측면과 전자정보원 측면에서 분석하였다. 또한 이러한 새로운 검색채널로서 메타서치시스템과 이와 연계된 링크리졸버를 이용하는 대학도서관의 이용통계를 분석하였다. 이를 바탕으로 구글스칼라와 차별화될 수 있는 도서관만의 특징인 이용자 이용행태 패턴과 주제별 전자정보 이용행태를 도출하여 전자정보 서비스의 방안으로 활용할 수 있음을 조사하였다.

• 한국자원식물학회지
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• 제25권3호
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• pp.339-345
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• 2012

The marine carotenoid fucoxanthin can be found in marine brown seaweeds, macroalgae, diatoms, and microalgae, and has remarkable biological properties. Numerous studies have shown that fucoxanthin has considerable potential and promising applications in human health, but the underlying mechanisms involved in its anti-allergic activity are not fully understood. We here investigated the mechanisms by anti-allergic activity of fucoxanthin fraction from Eisenia bicyclis in immunoglobulin E-antigen complex (IgE/DNP-BSA)-stimulated RBL-2H3 mast cells. This study we found that the fucoxanthin inhibits the release of ${\beta}$-hexosaminidase and suppressed not only transcriptional activation of NF-${\kappa}B$, but also phosphorylation of ERK and JNK in IgE/DNP-BSA-treated RBL-2H3 cells. Fucoxanthin may be useful for preventing allergic diseases, including asthma and atopic dermatitis.

• 한국전자거래학회지
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• 제11권3호
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• pp.89-108
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• 2006

본 연구는 21세기 IT 산업을 주도할 유비쿼터스 시대에 대비하여 IT 인력 양성을 대표하는 국내 대학의 유비쿼터스 기술 및 서비스 인력의 양성실태를 파악하고자한 것이다. 이에, 유비쿼터스 기술 및 서비스 인력에 대한 체계적인 분류체계를 개발하고, 국내 대학의 유비쿼터스 기술 및 서비스 관련 인력 양성 실태를 분석하여 시사점 및 대안을 제시하였다. 유비쿼터스 기술 관련 인력은 유비쿼터스 환경 하에서의 정보의 흐름에 따라 분류하였고, 유비쿼터스 서비스 관련 인력은 유비쿼터스 사용자의 관점에서 분류하였다. 본 연구의 결과물은 유비쿼터스 인력을 양성하기 위한 산 학 연 관의 협력 프로그램을 개발하는데 도움을 줄 것이며, 향후 유비쿼터스 인력의 수급 전망을 분석하는데 참고 자료로 활용될 수 있을 것이다.