• The Bulletin of The Korean Astronomical Society
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• v.42 no.1
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• pp.38.3-39
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• 2017

The N159 and N160 ionized regions in the Large Magellanic Cloud are an important extragalactic star-forming complex. The physical environments and the star formation stages are different in N159 and N160. We performed near-infrared polarimetry to those star forming regions with IRSF/SIRPOL 1.4-m telescope. Near-infrared polarization enabled us to trace the detailed structure of magnetic fields in star-forming regions. Through the polarimetric data of J, H, and Ks bands, we examined the magnetic field structures in the N159/N160 complex. In this presentation, we show complex distribution of the magnetic fields associated with dust and gas structures. We verify the local magnetic fields in each star-forming region, which appear to be related with local environments, such as interior and boundary of shell structure, star-forming HII regions, and boundaries between HII regions and dense dark clouds. We discuss the formation scenario of the N159/N160 complex suggested from the magnetic field structure.

• Korean Institute of Interior Design Journal
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• v.20 no.4
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• pp.46-53
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• 2011

Popular culture in modem society is that research is to understand the lives of the public. Since post-modem ism, in a clear perspective of the rapidly developing modern society, and the appearance of various societies have been drawn. Of the phenomenon is playing a large role in the admission of the public can see this was: strange places for the properties in the popular culture to analyze and find the meaning makes carry through their own perspective. It also dominates the field of spatial design for the public to understand cultural perspectives and positions should be aware of the importance of thinking. The relationship between spatial design and popular culture, modern society has become an essential point is changed popular culture that has more space, the design characteristics of the new changes will affect their position. In this study, playing a large role in the modern of culture properties, spatial design, looking at areas of social and cultural positions that are clearly focused. Therefore, the cultural phenomenon here in the popular culture of the design characteristics of the space, according to the visual design direction of modern society present in the space is presented.

• Journal of the Korean Society for Precision Engineering
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• v.26 no.10
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• pp.56-64
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• 2009

This paper presents a parallel typed walking robot which can walk in omni-direction and climb from a floor to a wall. We design a six D.O.F leg mechanism composed of three legs, which form a parallel mechanism with a base and a ground to generate arbitrary poses. Optimal design is conducted to maximize the walking space and the dexterity, which are normalized by the stroke of leg. Kinematic parameters are found to maximize the weighted optimal objectives. We design a triple parallel mechanism robot by inserting Stewart platform between the upper leg mechanism and the lower leg mechanism and examine the gaits when the robot walks on the ground and climbs from a floor to a wall. The analysis of walking space and dexterity for each gait shows that the triple parallel walking robot has a large walking space with a large stability region. We explore the possibility that the robot can climb from a floor to a wall. Investigating the gaits for the six steps proves that the robot can lift the foot up to the wall by combining the orientational walking space generated by three parallel mechanisms.

• The Bulletin of The Korean Astronomical Society
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• v.38 no.1
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• pp.40.1-40.1
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• 2013

The HI ring serendipitously found in the Leo I galaxy group is unique in size in the Local Universe. It is ~200kpc in diameter with MHI~$1.67{\times}109M{\odot}$, surrounding a pair of early type galaxies M105 and NGC 3384. Its origin is still under debate whether it is the remnant of formation of a galaxy group (primordial) or formed from stripped material during galaxy-galaxy interaction (tidal origin). Intriguingly a number of dwarf galaxies have been identified along the gas ring (with or without optical counterpart). Various properties of these dwarf galaxies such as dark matter content, color, and/or metallicity will allow us to pin down the origin of this large scale HI ring. We have obtained a mosaicked CFHT MegaCam image and the EVLA HI cube of the large scale gas ring. In this work we present optical and gas properties of dwarf galaxies identified in the CFHT data.

• Journal of the Korean Society for Precision Engineering
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• v.31 no.3
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• pp.199-205
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• 2014

We propose a new variant of lateral shearing interferometer with a tunable laser source that enables 3D surface profile measurements of freeform optics with high speed, high vertical resolution, large departure, and large field-of-view. We have verified the proposed technique by comparing our measurement result with that of an existing technique and measuring a representative sample of freeform optics. Moreover, we propose a new algorithm that is able to compensate the rotational inaccuracy.

• Korean Institute of Interior Design Journal
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• v.25 no.2
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• pp.112-122
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• 2016

The study aims to furnish the data for the study of invigorating communities of various ages including old people living alone. Furthermore, it seems that the laddering method and kj method can be useful for the study of various attitude survey. This study attempted to extract necessary factors for space for community behavior of elderly people living alone using laddering survey method and KJ rule on a sample of elderly people who live alone in three different rental housings. The keywords that were drawn from the perception survey through laddering were divided into small, middle and large classification using KJ rule. Mostly identical keywords were extracted in the three complexes, implying that there is no difference of perception among the three complexes in this survey. According to the large classification where KJ rule was applied, there were six necessary factors for space for community activity of elderly people living alone in rental housing including spatial consideration, communication, resting space, nature-friendliness, health promotion and Secure identity, which were the same for all of the three complexes.

• Korean Institute of Interior Design Journal
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• v.17 no.4
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• pp.66-74
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• 2008

A form of consumption has been changed to a form of pursuing rather qualitative sides than quantitative sides according to an improvement of the living level followed by an increase in national income and to an increase in women's advance to society in modern society. The above change had a lot of effects on children play space, a subsidiary means within commercial facilities. However, partial children play facilities have steady children injury cases by a lack of safety management facilities. Therefore, the study investigated indoor children play facilities installed in large-scale distribution stores as department stores and discount stores out of commercial facilities in Seoul. The study investigated actual conditions and collected picture data with a checklist drawn up on the basis of the safety management standard for three months from April, 2008 to June, 2008 by visiting five places under cooperation. The purpose of the study was to grasp actual conditions of safety management of play space within commercial facilities through the contents and picture data of the investigated checklist and to offer basic data in the side of safety management of commercial facilities and various indoor children play spaces by proposing security measures for the problems.

• Bulletin of the Korean Space Science Society
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• 2003.05b
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• pp.18-18
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• 2003

No Abstract, See Full Text

• 제어로봇시스템학회:학술대회논문집
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• 1991.10a
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• pp.401-406
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• 1991

An integrated control design and modeling method of multibody space structures is presented as a tool to control an d describe the large rotational motions of the space structures. The structures representeed with three separated substructures have independent control systems but linked with joints interacting the dynamic motions of the substructures. The effect of the structural flexibility to the control performance was analyzed and the simulation results showed that effectiveness of the designed control logic in controlling the motions of the multi-body space structures.

• Proceedings of the IEEK Conference
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• 2003.07e
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• pp.1899-1902
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• 2003

Recently several methods have been developed for the virtual space construction. Generally, most of the methods are geometric-based rendering technic, but they are difficult to construct real-time rendering because of large data. In this paper, we present a three dimension image-based rendering method that enable a constant speed of real-time rendering regardless of object complexity in virtual space. The Proposed method shows good performance for the virtual space construction with high complexity.