• 한국HCI학회:학술대회논문집
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• 한국HCI학회 2008년도 학술대회 1부
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• pp.510-516
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• 2008

In ubiquitous environment, there are no limits to utilize networks whenever and wherever you are. That pervasive networks are combined with the information devices and then create various services such as car navigation of LBS(location based service) and DMB(Digital Multimedia Broadcasting). As these kinds of services are getting more various, the complexity is also getting higher and ultimately the convergence will make people feel frustrated. One of the solutions is Context-Awareness[1] technology. User interface with context-awareness filters unnecessary information and prevents users from being blocked due to the massive information. In this paper, we describe the seamless service system based on location-awareness, which is a type of context-awareness. We developed the system based on UPnP AV Framework. This system provides the automatic terminal device selection for the nomadic user. The system establishes new connections for the ongoing streaming playback session with the new AV devices without substantial loss of playback so that the user can enjoy the seamless service. The AV device selection based on the user's location needs no user's intervention or notification so it achieves the improvement of usability and complexity.

• 한국BIM학회 논문집
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• 제8권2호
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• pp.10-18
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• 2018

BIM technologies store, share and integrate the information produced in each sector of the construction industry. From this point on, it increases the efficiency of the work. Currently, quantity take-off and process schedule are derived separately based on BIM technology. When calculating the quantity by process, relevant information shall be collected, reinterpreted, and reevaluated as required by the practice. The purpose of this study is to develop an integrated process and quantity management system through BIM collaboration and to build prototypes for steel structures. The main research is to build a construction BIM model for steel structures and a process BIM model through BIM collaboration. Furthermore, necessary information was selected and processed according to the user's needs for integrated management. Relevant integration outcomes are visualized graphically to maximize utilization. Through these studies, a system for integrated control of processes and supplies is provided, and the results are expected to contribute to the improvement of working efficiency and are easily and quickly reflected in design change and process change. In this study, we intended to enhance the usability of information by linking process schedules with quantity calculations based on BIM. Thus, the process for integrated control of the quantity of structural components by process unit and the BIM based schedule information was established. In addition, the efficiency of the information link of the integrated management system was considered for design changes and process schedule changes.

• 대한산업공학회지
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• 제37권1호
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• pp.10-18
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• 2011

Ergonomic product design considering users' natural use motion is of importance to improve the usability and satisfaction of a product. A five-step process of product design was developed in the present study by measuring and analyzing users' natural product-use motion with a motion capture system. The developed process was applied to ergonomic design improvement of a half guard installation part of refrigerator; new guard designs (diagonal and arc shape) were developed with the process and evaluated in terms of validity during the development as two measures (task satisfaction and similarity of natural motion). According to the evaluation result, the satisfaction at putting in- and out-task of new guard designs ($6.3{\pm}0.5$ points) was significantly higher than that of existing guard designs ($3.3{\pm}1.0$ points); the difference between natural motion and product-use motion in new guard designs ($1.0{\pm}0.3cm$) was significantly less than that of existing guard designs ($2.0{\pm}0.2cm$). The proposed process of natural motion analysis and product design is applicable to ergonomic product design and evaluation.

• 한국정보통신학회논문지
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• 제16권6호
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• pp.1291-1299
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• 2012

UML은 풍부한 문법이 제공되어 다양한 표현이 가능하지만, 사용자가 작성한 다이어그램의 일관성을 보장하지는 못한다. 따라서, 본 논문에서는 UML다이어그램 사이의 일관성을 개선할 수 있는 상호점검규칙을 제안하며, 특히 UML 동적 다이어그램과 정적다이어그램의 일관성에 중점을 둔다. UML 다이어그램의 구성요소와 상호관계를 보다 명확하게 상호점검규칙에 반영하기 위하여 메타모델을 이용하고, 규칙의 정확한 표현을 위하여 UML 표준 제약언어인 OCL을 사용한다. 상호점검규칙은 UML 명세의 well- formedness -rule과 비교하여 일관성에 중점을 두어 유도하였으며, 정적 다이어그램과 동적 다이어그램의 메타모델을 유도하고 다이어그램 사이의 관계성분석 과정을 거친다. 마지막으로 사례 다이어그램에 제안된 점검규칙을 적용하여 그 유용성을 검증한다.

• 정보과학회 컴퓨팅의 실제 논문지
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• 제20권12호
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• pp.682-687
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• 2014

한글 초성 질의는 내비게이션 시스템이나 모바일 기기와 같이 입력 환경에 제약이 있어 오류가 빈번한 인터페이스 상에서 사용자 편의성 향상을 위하여 제공되는 중요한 기능이다. 본 논문에서는 한글 문자열을 자소 단위로 분해하여 재배열하여 환형 문자열로 변환한 후, 확장된 버로우즈-휠러 변환을 이용하여 색인함으로써 초성 질의 탐색을 위한 시공간 효율적인 자료구조를 제안한다. 또한 실험을 통하여 기존 기법에 비하여 더 적은 공간만을 사용하면서도 보다 다양한 형태의 질의를 처리할 수 있으며, 특히 질의어의 길이가 짧고, 초성의 비율이 높을수록 탐색 속도가 향상됨을 확인하였다.

• 한국지리정보학회지
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• 제8권1호
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• pp.1-12
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• 2005

토지적성평가는 공간계획에 있어서 실질적인 전략영향평가의 역할을 담당할 수 있으며, 2003년부터 국토계획법에 의하여 시행되고 있다. 토지적성평가는 토지의 물리적 사회적 공간적 특성에 따라서 개발사업의 시행 이전에 토지의 용도를 평가하는 과정이다. 토지의 특성을 파악하기 위해서는 지리정보를 기반으로 한 디지털 DB의 활용은 필수적이며, 법률상으로도 GIS를 활용하도록 규정하고 있다. 이 연구에서는 전라남도 지역의 교외지역을 대상으로 사례연구를 통하여 토지평가를 실시하고, 그 결과를 바탕으로 GIS의 측면에서 토지평가제도의 효율성과 실행성을 강화시킬 수 있는 방법론을 모색하였다.

• 대한인간공학회지
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• 제26권4호
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• pp.143-146
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• 2007

Due to the expansion of cities and the increasing number of large-scale and complex public spaces, there is an increase in public signage. Moreover, the information described on these signs tends to be diverse and complicated. Complex signs that contain multiple destinations or other information must be considered to determine not only the proper size, color, etc. but also the most effective arrangement of design elements. In the previous research, the cognitive utility of complex public signs was estimated using computer simulation software. In the current research, we focused on the objective estimation of the effectiveness of the results obtained in the previous research utilizing an eye mark recording system. Two cognitive engineering experiments clarified five points for improvement in the usability of complex signs, as follows: 1) Parallel construction of characters and pictograms is more efficient. 2) Grouping elements result in rapid recognition of information chunks. 3) Visual characters and pictograms are effective, along with proper density of information. 4) Specific arrangement of sign arrows is effective. 5) Figures on signs influence the sequence of information searches.

• International Journal of Advanced Culture Technology
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• 제6권3호
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• pp.129-141
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• 2018

As the scope of social expectations and roles in the design field has expanded, the demand for education to cope with changes in the technology environment is increasing in design education. In response to this trend, microcontroller board-type design-prototyping tools have also been introduced into design education, and much educational content is being developed. However, there is the perception that students who are majoring in design without engineering knowledge are still barred from entry. A variety of educational content and tools have been developed to solve these difficulties, although there are several limitations to their practical application. Especially, in the design education courses in universities, the functional expectation level for prototyping is high, but most of the content developed for solving the difficulties has been developed for the lower education levels, and it could be said that a great deal of learning is necessary to solve the problem. In this study, students were asked about microcontroller board utilization and their satisfaction with their design through questionnaires and with the developed microcontroller board development direction via Focus Group Interviews. Based on this, we tested microcontroller boards that eliminate the coding process and which students can use to create and prototype their work as a suggestion to fulfil demand. After using the board, both the usability and improvement of the product were checked. Confirmation of the usefulness of the free- coding-type microcontroller was obtained through this study along with the possibility of responding to various educational demands by applying the application design related to this product.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2012년도 춘계 학술논문 발표대회
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• pp.77-79
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• 2012

This study is to assess the differences between concrete having only one of fine aggregates such as crushed fine aggregates, sea sand and blast furnace slag in it and concrete having mixture of two kinds of those fine aggregates in it in order to find out how to deal with the lack of some aggregates. The findings are as follows. In terms of slump, the concrete containing sea sand and blast furnace slag has very low slump values while the concrete having the mixture of crushed fine aggregate and the other fine aggregates showed better workability. In terms of compressive strength, the concrete containing the mixture of two kinds of aggregates showed higher compressive strength. Accordingly, it is likely that the concrete containing the mixture of crushed fine aggregate, sea sand and blast furnace slag is better than the concrete with only one kind of fine aggregates in terms of the usability.

• 한국도로학회논문집
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• 제19권6호
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• pp.57-66
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• 2017

PURPOSES : This study develops eco-friendly asphalt reinforcement materials applicable to bridge deck pavement. The main purpose is to ensure highly reliable quality applicable to structures and the possibility of practical application. The main target of the study is to develop materials that are environmentally friendly and capable of improving performance. METHODS : The application of double-reinforcement fiber improves the performance of the road pavement. 1. We use recycled film for application of sheet-typed reinforcement. 2. We use preprocessing fibers to reinforce the properties of composite pavement materials. RESULTS : The developed products may produce materials that fit the purpose of achieving stability and environmental friendliness. Sheet-typed reinforcements use more than 50% recycled resin. The most important type of damage to the asphalt layer is deflection (plastic deformation). These products have a very high deflection resistance of not less than 6,000 cycles/mm. In addition, all performance is excellent. Thus, it will be easier to access the field in the future. CONCLUSIONS : Fiber-reinforced asphalt pavement showed excellent performance. Sheet-typed reinforcements containing 50% recycling resin produced good performance in terms of functionality as well as environmental friendliness. Thus, enhancing the field applicability will enhance the usability of the reinforcements.