• The Journal of the Korea Contents Association
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• v.10 no.1
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• pp.477-485
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• 2010

Web based learning systems are operating with various and lots of learning contents. But it is hard to construct learning contents to fit learners when they select learning contents for learning. In this paper, we proposed the recommendation method that can support the learning contents as calculate learner's preference using the learning history information of learner's profile when learner design and compose learning course. In the applying result of this method, we've selected testing learner group and was able to know it can help to learner processing learning by themselves as we've got great learning satisfaction after test.

• Journal of Korea Game Society
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• v.21 no.6
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• pp.51-62
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• 2021

The current study investigated the effect of emoji use and gender on job interview training within virtual environment (VE). A 2 (emoji use: use vs. no use) × 2 (interviewee gender) × 2 (interviewer gender) mixed design experiment (N = 80) was conducted. The result shows that emoji may be implemented within VE to promote positive affect. Intimacy predicted better mutual understanding and higher attention. Practical implication is provided as using emoji in virtual environment can be utilized as a practice tool for job interviews, or for other potentially stressful social contexts.

• Proceedings of the SAREK Conference
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• 2009.06a
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• pp.1412-1417
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• 2009

BIM(Building Information Modeling) is considered a new paradigm and a powerful method in building design, construction and maintenance. However, it is still hard to implement environmental performance analysis using BIM in design stages. This study aims to reveal practical problems and evaluate interoperability between building design information and performance analysis with case studies. Three case studies are performed using two environmental analysis programs (IES/VE, EnergyPlus) and BIM-based architectural design programs (Revit, GoogleSketchUp) in this paper.

• Korean Journal of Computational Design and Engineering
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• v.15 no.5
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• pp.343-353
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• 2010

Time to market and cost-efficient production are some of the challenge that manufacturing industries face. Modern methods of engineering can't help such organizations attain competitive advantage. To help these situations, MEMPHIS (Middleware for Exchanging Machinery and Product Data in Highly Immersive Systems) was introduced as an approach that enables VE (Virtual Engineering) and links engineering applications with VR (Virtual Reality) solutions. Thus an environment is provided to implement virtual design reviews and enable the application of virtual prototyping methods. However MEMPHIS could just handle Product data for virtual design review and simulation. In this paper, we newly define and develop the extended MEMPHIS that enables virtual manufacturing with Process, Resource and Plant data as well as Product data.

• Korean Institute of Interior Design Journal
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• no.31
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• pp.3-11
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• 2002

Shopping malls in Seoul become important urban public space where teens and youths as well as the elderly come easily and enjoy thorned environment. This study examines design motifs, structures and effects of theme design of three shopping malls-Lotte World, Coex Mall, and Central City-in Seoul, Korea. The study quotes Lynch`s five image elements-paths, nodes, landmarks, districts, and edges in the shopping malls in order to analyze internal structure of the shopping malls and theme design elements. The theme design of the shopping malls was often used the images of "city parks", "future city", "foreign tourist places", "carnival and festival", and "old towns" to evoke nostalgia of the past and fantasy of the future. The study finds that theme design was emphasized at the area of corridors-path, plazas-nodes and special districts such as movie theater and food courts. The study concludes that theme design in the three shopping malls should consider local(Korean) motifs in design properly and consider educative effects of the design on teens and youths. Thus, theme design of the shopping malls should meet multi-functional roles of the spaces aesthetically and socially, The data and analysis of this study can contribute to improve theme design of shopping malls in Seoul, Korea.ve theme design of shopping malls in Seoul, Korea.

• Korean Institute of Interior Design Journal
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• v.14 no.5 s.52
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• pp.62-70
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• 2005

Basically, modern architect's translation of relations between architectural space and human beings is focused upon the space and the way the space is experienced. Thus, the architecture is construed not as the finalized and fixed structure but as something undetermined and In progress. Here, we can identify the similarity between current trend and theory on process. Experience argument in this study is based upon such a similarity. And for your understanding of the spatial concept broached in the following experience argument, I've presented the analysis of Ben van Berkel's and Kazuyo Sejima's works that represent user's experiences in discussing art works. Taking a step further, I'll try to provide the true definition of being in progress and the potential of the architecture, thereby seeking the value and meaning of trends in modern architecture. In this regard, this study is aimed to analyze the attributes of experiences in progress identified in the art works of Ben van Berkel and Kazuyo Sejima and to extract and analyze the architectural concepts therein.

• 제어로봇시스템학회:학술대회논문집
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• 1996.10b
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• pp.747-750
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• 1996

This paper considers the problem of robust H$_{\infty}$ control with regional stability constraints via output feedback to assure robust performance for uncertain linear systems. A robust H$_{\infty}$ control problem and the generalized Lyapunov theory are introduced for dealing with the problem, The output feedback H$_{\infty}$ controller makes the controlled outputs settle within a given bound and the control input not to be saturated. The regional stability constraints problem for uncertain systems can be reduced to the problem for the nominal systems by finding sufficient bounds of variations of the closed-loop poles due to modeling uncertainties. A controller design procedure is established using the Lagrange multiplier method. The controller design technique was illustrated on the track-following system of a optical disk drive.ve.

• Journal of the Korean Solar Energy Society
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• v.29 no.3
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• pp.28-36
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• 2009

The majority of fixed shading devices are installed in the exterior of a building in order to dissipate the heat absorbing from the sun and to prevent the direct sunlight. In designing external shading devices for windows, many requirements must be considered simultaneously; solar geometry, optimum energy performance, multi-purpose usage and design factors etc.. In order Lo satisfy these requirements, we suggests the folding shading device and its optimum design methodology. Also we analyzed the thermal performance using the IES_VE program according to various operating modes and compared with existing shading devices. The results show that proposed device reduce about $1.90{\sim}22.40%$ in cooling load and about $1.09{\sim}24.22%$ in heating load in comparison with existing ones.

• International Journal of Advanced Culture Technology
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• v.10 no.2
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• pp.269-280
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• 2022

It has been common since ancient times to use fashion accessories to make a positive impression on others and develop personal brands. For this manuscript, I've designed a range of personalized electronic sounds and perfume accessories that use personalized scents and sounds to create memorable experiences. These have built-in auditory and olfactory actuators that can generate unique sound and fragrance signatures from the wearer and the other party. Based on the design explorations, I also discussed the issues of design and implementation of personalized electronic sound and fragrance accessories, as well as issues and additional business opportunities for the use of these personalized electronic sound and odor accessories in everyday life.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.469-472
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• 2003

A life cycle cost analysis model for public water supply systems should be different from the ones for other civil and architectural facilities as the operation and the maintenance cost of the water supply systems mainly come from the various mechanical systems and the pipeline systems of the collecting/treating/distributing facilities. This paper presents a cost classification scheme and a life cycle cost analysis model for public water supply systems. A value analysis (VA) procedure that is well suited for practical purposes is also presented. The presented life cycle model and the value analysis procedure were applied to a real world project, and this case study is discussed in the paper. The model and the procedure presented in this study can greatly contribute to the value-oriented design alternative selection, the estimation of the maintenance cost, and the allocation of budget for water supply system construction projects.