• 한국정보과학회논문지:데이타베이스
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• 제33권7호
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• pp.715-726
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• 2006

웹 서비스는 인터넷 상에 분산되어 있는 이질적인 응용들 사이의 연동 및 통합을 위한 표준화된 수단을 제공한다. 본 논문에서는 계층적인 연동 관계가 존재하는 복합 웹 서비스들에 대해 서비스 결과로 전달되는 내포 데이타를 활용하여 웹 서비스들의 호출 및 복귀 작업을 서버 및 통신 비용에 따라 효과적으로 분산 수행함으로써 웹 서비스 시스템의 전체적인 성능을 향상시킬 수 있는 방안을 제시한다. 본 논문에서는 내포 결과를 이용한 적법한 웹 서비스 호출 실행 계획 및 이에 대한 비용 기반 최적화 문제를 정의하고, 최적 호출 실행 계획을 찾기 위한 휴리스틱 탐색 방법과 효율적으로 수행될 수 있는 그리디 알고리즘을 제안한다. 실험 결과, 제안한 그리디 알고리즘은 빠른 시간 내에 최적 해에 가까운 효율적인 호출 실행 계획을 생성하며, 복잡한 웹 서비스 연동 관계에 대해서 우수한 확장성을 보였다.

• Journal of Construction Engineering and Project Management
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• 제2권3호
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• pp.30-39
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• 2012

Design-build (D&B) has been broadly perceived as an effective project delivery method and become popular in the world. However, the implementation process of this innovative procurement method in Vietnam encounters difficulties due mainly to unfamiliarity and inexperience with the approach. Critical success factors (CSFs) which could be used to enhance the project execution are useful to practitioners in Vietnam if identified. A questionnaire survey was employed to identify CSFs of D&B projects in Vietnam. Parties' competence, especially financial capability, and contract documentation are the most important factors significantly affecting project success. It was also shown that the perspectives of two principal parties in D&B projects on the CSFs are statistically correlated. The identified CSFs were then validated with some various D&B projects. The execution results of CSFs' were compared with the projects' performance measured try key performance indicators (KPIs). The most important success factors of this study were also compared with other countries'. The validation and comparison results provide project participants with some useful information to perform D&B projects better. Practitioners should well perform the identified CSFs to enhance the chance of the success of D&B projects in Vietnam. The findings of this study are useful not only to Vietnamese practitioners but also to others who are concerned about D&B method and plan to employ it in Vietnam in future.

• 복식문화연구
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• 제10권5호
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• pp.473-484
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• 2002

The purpose of this study is to analyze the window display in the department stores in Daejeon. The framework of execution, colors, illumination, and kinds and colon of mannequins of the window display in four department stores in Daejeon were analyzed based on the photographs of displays from January to October in 2001. The results were as follows: First, in the framework of execution, each department store used mostly the triangle-framework during four seasons, which was a fundamental framework. Its characteristics were a sense of security, three-dimensional effect, and balance. It was the most suitable framework fur the mannequins and toruso. Second, a color scheme for commodities was all no-coloring scheme in each four seasons. The color of background was mostly white which harmonized well with the colors of commodities and lights. The plan for the color scheme of window display should always executed on the commodities, and the colors should be harmonized to produce the best display effect. Moreover, when commodities had two colors, the color of background should be in one simple color that manifest the commodities, or that is secondary color to the main color of commodities. Third, all department stores used all same illumination. Lack of illumination, management, and expense incured ineffective production of the display. Fourth, mostly, real mannequins with white or skin colors were used, and the toruso was next used in department stores. The set was limited because many companies had not made new sets for the display. Therefore, new sets including mannequins should be actively developed to produce effective display.

• 건축역사연구
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• 제16권2호
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• pp.43-58
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• 2007

This paper attempts to interpret the meaning of Mies van der Rohe's famous aphorism that "less is more" in terms of space. From his assertion that the art of building is the spatial execution of spiritual decisions, one can presume that his art of building was revealed through his spatial execution consciously guided by creative principles. One of his spatial principles was less is more a representative motto for the creation of sparsely furnished space with few objects and little perceptible architecture. After his awareness of an open plan, Mies intended to create less architecture by designing a minimal form of structural frames and maximum openness of open plans and glazed walls. This study posits that Mies created more potential space, for which he intended his open plans and neutral frames to be viewed as less. His building was designed to serve as the background of works of art and the changing nature outside so restrained its own existential voice in favor of the achievement of total harmony.

• 대한산업공학회지
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• 제22권4호
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• pp.719-739
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• 1996

A common control model used to implement computer integrated manufacturing(CIM) is based on the hierarchical decomposition of the shop floor activities, in which supervisory controllers are responsible for all the interactions among subordinates. Although the hierarchical control philosophy provides for easy understanding of complex systems, an emerging manufacturing paradigm, agile manufacturing, requires a new control structure necessary to accommodate the rapid development of a shop floor controller. This is what is called autonomous agent-based heterarchical control. As computing resources and communication network on the shop floor become increasingly intelligent and powerful, the new control architecture is about to come true in a modern CIM system. In this paper, heterarchical control is adopted and investigated, in which a controller for a unit of device performs three main functions - planning, scheduling and execution. Attention is paid to the planning function and all the detailed planning activities for heterarchical shop floor control are identified. Interactions with other functions are also addressed. In general, planning determines tasks to be scheduled in the future. In other words, planning analyzes process plans and transforms process plans into detailed plans adequate for shop floor control. Planning is also responsible for updating a process plan and identifying/resolving replanning activities whether they come from scheduling or execution.

• 대한안전경영과학회지
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• 제14권4호
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• pp.259-264
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• 2012

Automobile market was grown up by 1.7% at the first half of 2012 comparison with 2011 in China and this growth trend will be continued for a while. Under this market environment the China automobile companies expand the production capacity and result in heightening the intense competition for companies. This paper deals with the more efficient production line and production logistics through SPS(Synchronized Production System) with construction of MES(Manufacturing Execution System) in H automobile company in China. In plastic painting line we can simultaneously prepare the production quantity and delivery time according to assembly production plan by introducing MES. We can reduce the excess production and result in extreme reduction of inventory.

• 한국컴퓨터정보학회논문지
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• 제25권10호
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• pp.77-86
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• 2020

본 논문에서는 블록체인 응용서비스를 견고하게 실행하고, 이의 실패 시 체계적인 복구를 지원하는 BR2K(Blockchain application, Replication & Recovery technique using Kubernetes)기법을 제안한다. 블록체인 서비스는 블록체인의 특징인 탈중앙화, 높은 보안성, 그리고 데이터 무결성 등을 기반으로 행정, 금융, 그리고 의료 시스템 같은 다양한 분야에서 개발 및 적용되고 있다. 따라서 이와 같이 서비스의 연속성이 중요한 분야에서 블록체인 서비스 실행에 대한 견고성이 제공하는 것이 필요하며, 서비스 실패에 대한 복구 방안 또한 필요한 실정이다. 이를 위하여, BR2K는 블록체인 응용서비스의 지속 가능한 실행을 체계적으로 지원하는 실행 복제 기법을 제공한다. 또한, 블록체인 서비스 레지스트리 기반의 견고한 컨테이너 레지스트리를 소개하고 이를 이용하여 서비스 실패에 대한 복구를 체계적으로 지원한다. 더불어, 블록체인 서비스 개발 프레임워크인 트러플을 쿠버네티스 컨테이너 관리 도구를 활용할 수 있도록 확장하고, 이를 바탕으로 서비스를 신속하게 배포하는 기법을 제공한다.

• 한국건설관리학회논문집
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• 제6권2호
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• pp.139-149
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• 2005

프로젝트 형태의 생산방식을 갖는 건설업의 위험 관리는 매우 중요하며, 효율적인 위험관리를 위해서는 프로젝트의 전 과정에 발생하는 위험 요인에 대한 파악과 이에 대한 분석이 필요하다. 국내에서는 이러한 위험과 관련한 연구가 활발하게 진행되고 있다. 하지만 기존의 연구들은 외국의 관련문헌을 참고하거나, 설문조사 방식을 이용하는 등의 간접적인 방법으로 위험요인을 분석하였기 때문에 국내 프로젝트에서의 구체적인 위험 요인 분석에는 한계가 있었다. 이에 본 연구에서는 건설프로젝트의 실제적인 위험요인을 분석하기 위하여 실제 사례를 선정 계획 단계에서의 실행과 완성 단계에서의 실행을 비교하여 이를 작업일보, 감독일지 등의 진도관리 자료를 활용하여 분석하고, 추가로 사례 현장의 관리자들을 대상으로 인터뷰를 실시하여 국내건설 프로젝트에서 빈번하게 발생하고 있는 실제적인 위험 요인 31가지를 도출하였다.

• 한국초등과학교육학회지:초등과학교육
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• 제39권1호
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• pp.133-144
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• 2020

The purpose of this study is to identify the effect of Teacher Participation-oriented Education Program (TPEP) for Elementary School Teachers to Improve Class Expertise in Science Classes with a focus on visual attention. The participants were two elementary school teachers in Seoul and taught science subjects. The lesson topic applied to this study were 'Structure and Function of Our Body' in the second semester of fifth grade and 'Volcano and Earthquake' in the second semester of fourth grade. The mobile eye tracker SMI's ETG 2w, which is a binocular tracking system was used in this study. In this study, the actual practice time, participant's visual attention, visual intake time average, and visual intake time average were analyzed by class phase. The results of the study are as follows. First, as a result of analyzing the actual class execution time, the actual class execution time was almost in line with the lesson plan after the TPEP application. Second, visual attention in the areas related to teaching and learning activities was high after applying TPEP. Factors affecting the progress of the class and cognitive burdens were identified quantitatively and objectively through visual attention. Third, as a result of analyzing the visual intake time average of participants, there was a statistically significant difference in all classes. Fourth, as a result of analyzing the visual intake time average of participants, the results were statistically significant in the introduction(video), activity 1, activity 2, and activity 3 stages in the lecture type class. The Teacher Participation-oriented Education Program (TPEP) for Elementary School Teachers to Improve Class Expertise in Science Classes can extend elementary science class expertise such as self-class analysis, eye tracking, linguistic, gesture, and class design beyond traditional class analysis and consulting.

• 한국실내디자인학회논문집
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• 제21권3호
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• pp.103-110
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• 2012

Interior Coordination is the activity of making characteristic living space by planning and harmonizing various interior elements. In modern society, the taste and needs of the residents are getting varied and segmented, and the role of interior coordination is getting more important because that reflects cultural codes and trends and satisfies residents' needs. This study aims to investigate awareness and needs about interior coordination targeting apartment residents, and to provide fundamental data that could attribute to the planning of unique and diverse residential spaces. Methods of study include the literature research and the empirical study. Elements of interior coordination were extracted through the literature review, and the questionnaire was developed using these elements. And then a survey was carried out targeting apartment residents of Busan. The result shows that most of the residents were much interested in interior coordination, and they recognized it's importance. They wanted to plan and select the elements by themselves, but were passive in actual execution because of the difficulties in execution methods and economical conditions. There were certain differences between the styles of their own houses and the preferred styles, but they did not try actively to reconcile the differences. Therefore, various methods of interior coordination should be developed and proposed which are easy and effective for actual execution, and various media should be provided by which residents could easily get informations on design elements. Also, the concept and method of interior coordination should be considered from the very first stage of residential planning, and the replacement and modification of interior coordination could be easily done according to the change of life cycle and life styles.