• Korean Institute of Interior Design Journal
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• 제38호
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• pp.209-216
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• 2003

The purpose of this study is to develop furniture design for work space of Office based on the research of furniture design and the survey on the design of the office furniture. The office furniture Is designed in order to use the space flexibly and for the user design in the work space. The furniture type of solo worker on characteristic kinds of works should have a simple shape and it should be safe and easy to move because it has a structural function. The furniture in office should be designed in consideration of moveing line while working. The development of furniture in office which suit human body should be made in consideration of human factors and the study on furniture design in office. As above mentioned, to research and study on the furniture design of working furniture in office which reduces fatigue resulted from labor for office, human factors aspect should be considered, furthermore psychological, mental approach to Ideal solution should be made.

• Proceeding of Spring/Autumn Annual Conference of KHA
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• 한국주거학회 2008년 추계학술발표대회 논문집
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• pp.299-304
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• 2008

The purpose of this research is to prepare fundamental data which will help the proposal for future a small size housing's plan and direction by looking into customers needs of community space and service for personal household because the personal household demand of the housing market is expected to be the most importance. To accomplish this, 150 people of age range from 20 to 30 who lives alone in Seoul has been surveyed from November 15th to 25th 20008. Also the socio-demographic characteristic, satisfaction of housing life, living characteristic and etc. of young people have been examined.

• The Bulletin of The Korean Astronomical Society
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• 제35권2호
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• pp.74.2-74.2
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• 2010

We investigate driven magnetohydrodynamic (MHD) turbulence by including the effects of expansion and collapse of background medium. The main goal is to quantify the evolution and saturation of strength and characteristic lengths of magnetic fields in expanding and collapsing media. Our findings are as follows. First, with expansion and collapse of background medium, the magnetic energy density per comoving volume does not saturate; either it keeps decreasing or increasing with time. The magnetic energy density relative to the kinetic energy density strongly depends on the expanding or collapsing rate. Second, at scales close to the energy injection (or driving) scale, the slope of magnetic field power spectrum shallows with expansion but steepens with collapse. Third, various characteristic lengths, relative to the energy injection scale, decrease with expansion but increase with collapse. We discuss the astrophysical implications of our findings.

• The Bulletin of The Korean Astronomical Society
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• 제36권1호
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• pp.85.2-85.2
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• 2011

We investigate the driven magnetohydrodynamic (MHD) turbulence by including the effect of the expansion and collapse of background medium. The main goal is to quantify the evolution and saturation of the strength and characteristic length scales of magnetic fields in expanding and collapsing media. Our findings are as follows. First, with the expansion and collapse of background medium, the time evolution of the magnetic and kinetic energy densities depends on the nature of forcing as well as the rate of expansion and collapse. Second, at scales close to the energy injection (or driving) scale, the slope of magnetic field power spectrum shallows with expansion but steepens with collapse. Third, various characteristic length scales, relative to the energy injection scale, decrease with expansion but increase with collapse. We discuss the astrophysical implications of our results.

• Proceedings of the Korean Institute of Interior Design Conference
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• 한국실내디자인학회 2004년도 추계학술발표대회 논문집
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• pp.46-49
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• 2004

A contemporary office space is changed by the transformation to an information-oriented society from an industrial society. A contemporary office space is recognized as an interactional space which is more of a mental and psychological space than a physical space. I studied the basic concept of an office space and the relationship of a social change and an office space on this study. I also studied the concept of an ubiquitous computing and the relationship of an ubiquitous computing and an office space. Through this study, we can establish the new concept of an office space to be applied to an ubiquitous concept. The ubiquitous concept of an office space will be brought into a new prototype of an office space, and then there is no more important to a physical place and time. The office space must be redesigned by an ubiquitous space nowadays.

• Korean Institute of Interior Design Journal
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• 제18권6호
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• pp.124-132
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• 2009

Recently, 'Emotion' has attracted public attention socially and continuously in the fields such as construction, environment, design and products. Also, phenomenological concept of space through the physique in the viewpoint of the human-oriented aspect, namely, body, has been managed as a planned measure suitable for a new era and space. In this study, the author examined and analyzed the verbs and emotional vocabulary about the human body's behavior. The phenomenological space conception through body, i.e, flesh in this human centered point of view is being treated as the suitable planning measure on the new era and space. Though the epochal issue for Emotion is being attempted in many ways in various field such as product and marketing, the approach through the relationship between human and space. Therefore, we would like to see how the Emotion related to the movement that occurs in the space by analyzing the human body movement which is the subject of experiencing the space experimentally and research the characteristic of Emotion and space movement. SPSS 12.0 was used for the analysis to perform the analysis of basic statistics and Factor Analysis, and then to analyze the characteristic and emotional attribute for the experimental analysis. Comparing the activity for the 2 groups' behavior through the analyzed result with the test, active behavior was found to be higher than inactive behavior in the emotional value, and their bodies' motion showed averagely positive value in the emotional aspect; their bodies' motion was presented differently according to the attributes and amount of the people who would experience a specific space. However, the author found that affirmative and active behavior showed emotional aspect more than inactive behavior.

• Journal of Electrical Engineering and Technology
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• 제11권1호
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• pp.9-19
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• 2016

Accurate models of the characteristics of typical inverse-time overcurrent (OC) protective devices play an important role in the protective coordination schemes. This paper presents a novel approach to determine the OC protective device parameters. The approach is based on the Eigensystem Realization Algorithm which generates a state space model to fit the characteristics of OC protective devices. Instead of the conventional characteristic curves, the dynamic state space model gives a more exact fit of the OC protective device characteristics. This paper demonstrates the feasibility of decomposing the characteristic curve into smooth components and oscillation components. 19 characteristic curves from 13 typical and 6 non-typical OC protective devices are chosen for curve-fitting. The numbers of fitting components required are determined by the maximum absolute values of errors for the fitted equation. All fitted equations are replaced by a versatile equation for the characteristics of OC protective devices which represents the characteristic model of a novel flexible OC relay, which in turn may be applied to improve the OC coordination problems in the sub-transmission and distribution systems.

• Journal of the Korean housing association
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• 제19권3호
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• pp.49-58
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• 2008

This study focused on the architectural plan of the pension to meet modem people's desire for rural life, and the result of the study is as follows: First, the architectural plan for the characteristic of the location must apply the various architectural types considering the suburbs, tour and culture town, and community for the location improvement. Second, the architectural plan for the characteristic of the plot requires the encircled space and courtyard between buildings, the private gardens for the rooms, and the consideration of the surrounding environment. Above all, the plan for the subsidiary facilities is the most important. Third, the architectural plan for the characteristic of the plan requires the close connection with the outside, the wide opened view from the guest room, and the individual entrances for the guest rooms. Fourth, the architectural plan for the characteristic of the decorative design must consider the mass separation plan, the application of the facade design factors and eco-friendly environment materials, the night illumination plan, and the space program for the scenic view.

• East Asian mathematical journal
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• 제33권5호
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• pp.511-525
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• 2017

We introduce an extrapolated higher order characteristic finite element method to construct approximate solutions of a Sobolev equation with a convection term. The higher order of convergence in both the temporal direction and the spatial direction in $L^2$ normed space is established and some computational results to support our theoretical results are presented.

• Bulletin of the Korean Mathematical Society
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• 제33권2호
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• pp.253-258
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• 1996

Let X be a finite connected CW-complex, $\Gamma = \pi_1(X)$ its fundamental group, $\tilde{X}$ its universal covering space. Then $\Gamma$ acts on $\tilde{X}$ by covering transformations and on the homology group $H_*(\tilde{X})$. In this note we establish the following vanishing result for the Euler characteristic $x(X)$ of X.