• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 2002.05a
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• pp.57-61
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• 2002

This paper presents a current-source-inverter based on a buck-boost configuration and its application for residential photovoltaic system. The proposed circuit has five switches. Among them, only one switch acts as chopping, and the other determine the polarity of output; therefore, it can reduce the switching loss. Because the input inductor current is operated on the discontinuous conduction mode, high power factor can be achieved without additional input current controller. So the overall system shows a simple structure. The operational modes are analysed in depth, and then it was verified through the experimental results using a 150 W prototype.

• Proceedings of the Korean Information Science Society Conference
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• 2004.10a
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• pp.787-789
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• 2004

People frequently feel the need of a general searching tool that frees from language barrier when they find information through the internet. Therefore, it is necessary to have a multilingual parallel corpus to search with a word that includes a search keyword and has a corresponding word in another language, Multilingual parallel corpus can be built and reused effectively through the several processes which are judgment of the web documents, sentence alignment and word alignment. To build a multilingual parallel corpus, multi-lingual dictionary should be constructed in each language and HTML should be simplified. And by understanding the meaning and the statistics of document structure, judgment on translated web documents will be made and the searched web pages will be aligned in sentence unit.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 2001.11b
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• pp.855-860
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• 2001

As being inconvenient to apply reinforced concrete structure to high-rise buildings. it is applied steel structured system. Therefore light-weight wall systems are applied as partition wall to reduce the self-load of the building. But. the required performances of a light-weight wall are not evaluated systematically. As a field survey result. partition walls of house-to-house and room-to-room were not showed their respected performances. so the dwellers are feel so worse the quality of the whole building. In steel-structured high-rise buildings especially. occupant's dissatisfaction concerned indoor noise was high because curtain wall systems having a high air-tight performance isolate the outdoor noise making masking effect. Also to suppress indoor air movement. stact effect must be concerned. Therefore wall systems which have high performances of sound insulation and air-tightness are required in high-rise buildings.

• 제어로봇시스템학회:학술대회논문집
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• 2001.10a
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• pp.30.2-30
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• 2001

As the era of the human friendly robot looms, the intelligent autonomous mobile robots have obtained tremendous interests in recent years. The robots may be service robots for serving human or industrial robots for replacing human. For the coexistance with human, the robots must be able to feel and recognize three dimensional space that human live. In this paper, we propose three dimensional environmental modeling method based on a neural network technique called Growing Neural Gas Network. The purpose of this neural network is to generate a graphical structure which reflects the topology of the input space. Through this method, the robots´ surroundings are autonomously segmented ...

• Proceedings of the SCSK Conference
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• 2003.09b
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• pp.192-199
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• 2003

Trimethylglycine, commonly named betaine, is the most simple amphoteric molecule. It is completely vegetal (1,2), as it is produced in the sugar industry by industrial chromatography of molasses. While abundantly used in foods and diet supplements, many interesting applications in cosmetics have recently been investigated, like its capability to increase the volume and stability of foams in surfactant solutions. For its special chemical structure (it is the internal salt of a weak acid and a strong alkali) trimethylglycine is a solvent and buffering agent for strong acids and Lewis' acids. It allows to improve the efficiency of $\alpha$- and $\beta$-hydroxy acids in increasing the physiological rate of epidermal cell renewal, while keeping a low skin-irritation level. In oral care cosmetics, it acts as a mucous membrane protectant (3). For its special water co-ordination capability, its solubilising power, polymer swelling capability, after-feel improvement in hair products, skin moisturization and elasticity enhancing properties, trimethylglycine provides unusual characteristics to many products intended for skin maintenance (4).(omitted)

• Journal of the Korea Fashion and Costume Design Association
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• v.12 no.3
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• pp.93-103
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• 2010

The results of comparison and analysis of dynamical features according to Jacquard structure are as follows. Regarding elongation(E) value in tensile property, the value in the direction of course was found to be larger in all Jacquard structure, except floating Jacquard, than the direction of wale. It could be found that, as to bending strength(B) in Bending Property, the value of bending strength in the direction of course smaller in all the textile(structure) except floating than the direction of wale, so that the ability of curve formation is excellent. And in case of floating Jacquard, it showed the smallest value in the direction of course and wale, so that it was interpreted as Jacquard having a soft feel. Blister Jacquard showed the highest value in both directions of course and wale, so that it was evaluated as Jacquard having the hardest touch. With regard to shearing character(G) and shearing hysteresis(2HG) in Shearing Property, Jacquard indicated the lowest value, so it was evaluated as the textile(structure) having high drape the transformation of whose fabric is easy. In addition, normal Jacquard, transfer Jacquard, blister Jacquard showed a high value, so that it could be known they are Jacquards having stiff touch. The study implies that normal Jacquard, bird's eye Jacquard, etc., which well stretch in the direction of a course like tubular Jacquard course, is better to make the margin a little shorter than the basic margin, and Jacquard that well stretches in the direction of wale like ladder's back Jacquard and floating Jacquard is better to make the margin longer and the length shorter than the basic margin.

• Korean Institute of Interior Design Journal
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• v.22 no.3
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• pp.183-194
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• 2013

Exhibition space emphasizes the experience in the space rather than viewing or appreciation of visitors. Because the experience spaces in today's life are limited, people experience rest, comfort, and sometimes extraordinary space experience through exhibition space. Exhibition space has changed from a static place to a space where visitors move and act with the exhibits to freely feel the space. Also, the static space expressed only with illumination and shadow becomes a new space different from daily space for users. This study analyzes the characteristics of phenomenological expression through such user-oriented exhibition space. This study is to analyze the characteristics of phenomenology through the exhibition experience space structure. It is to analyze and study on the characteristics of phenomenological expression of the exhibition experience space structure centered in the opinion of Merlo-Ponti that considers the experience of body among 'characteristics' discussed based on the study of the phenomenological experience published up to date and the viewpoint of Steven Hall that sees light as a subject of creating the space. This study is also considers how the perception of the experiencer is built in the correlation between the phenomenology and exhibition experience space by studying the relationship of the experiencer that is the common point of the exhibition experience space structure and the characteristics of phenomenological expression and analyzing the common point and difference of them. It also focuses on the space of dark whether forming any light rather than looking at the light which is the sense factor among the characteristics of phenomenological expressions. Thus, the purpose of this study is to analyze the case on whether there is any light or not applied to the exhibition experience space grounded by the theoretical materials of Merlo-Ponti and Steven Hall based on the characteristics of phenomenological expressions in the exhibition experience space structure and, based on the result, to set up the basics on the characteristics of phenomenological expressions in the composition of exhibition experience space.

• Cross-Cultural Studies
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• v.25
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• pp.237-265
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• 2011

This thesis is to argue what is the meaning of the expression of cherry blossoms appearing in "Genjimonogatari(源氏物語)" in relation with the structure of Monogatari after checking each example. First we reviewed some examples of the works before "Genjimonogatari", and clarified that cherry blossoms were used as metaphorical expressions of a beautiful woman in waka(和歌), and that at the same time cherry blossoms functioned as the symbol of futility, anxiety together with beauty. Especially in "Kokinshu(古今集)" we identified that there increased the examples where the combination of the expression as falling cherry blossoms, and fog and cherry blossoms was done. In "Genjimonogatari" we examined the examples of cherry blossoms of Chapter 1, Chapter 2, and clarified that Murasakinoue(紫の上) was a woman with an ideal character in looks and inner personality through the diverse viewpoints of characters. In Monogatari of Kashiwagi(柏木) of Chapter 2, the scene where he peeped Onnasannomiya(女三宮) was composed by the combination of cherry blossoms and fog, and we pointed out that we could feel the anxiety, ominousness of the love of the couple through this scene. And the composition of these scenes was also repeated in Monogatari of Chapter 3, and we discussed through these examples that the figurative expressions of cherry blossoms were used about the object of the love not to be realized. Next, we checked that Yugiri(夕霧) who had observed Kashiwagi's love toward Onnasannomiya gave a figurative expression of Kashiwagi's wife Ochibanomiya(落葉の宮) as cherry blossoms. Although Genji(源氏) realized Onnasannomiya's immaturity, Kashiwagi compared her to "cherry blossoms", and Yoogiri compared the woman whom Kashiwagi recognized as "Ochiba(落葉)" to "cherry blossoms", through which we have read the twisted human relation and ironical structure of Chaper 2. Finally, we checked the examples of cherry blossoms in Ooigimi(大君), Nakanokimi(中君), Ukihune(浮舟) who were Ujijujo's heroines. Ooigimi and Nakanokimi were expressed as cherry blossoms by Kaoru(?) and Nioumiya(?宮) and were disclosed as their ideal women. In contrast, Ukihune had something to do with two men with no such figurative expression, so it was pointed out that the absence of such metaphorical expression clarified that the meaning of her existence was nothing but the meaning as a mesiudo(召人).

• Cartoon and Animation Studies
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• s.21
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• pp.71-84
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• 2010

The current distribution structure in Korea film industry is in the multiplex chain. As a result, most small or medium-sized theaters have been excluded from the market, and all the multiplex chain have gradually been formed into the vertical integration structure. The strike by multiplex theaters in Chuncheon who did not screen for one month led to the problem of the vertical integration, which resulted in many effects. Particularly, it caused considerable effect on the cultural desire and instigated movie-goers to turn to illegal content. This study surveys the process in which Korean multiplex theaters in vertical integration structure took over the Korean film market, and consequently, small theaters collapsed, and the theaters in vertical integration structure kick out small theaters in horizontal integration structure, and conducts a survey on the effect of the one-month strike by Chuncheon CGV from September 27 to October 30, 2008 in Chuncheon where said processes had completed so as to determine the effect of and impact of the problem of the vertical integration, monopoly structure. When major consumers of the film industry, i.e., people in their 20s, see their access to newly released films limited due to closing of multiplex theaters, they feel the impulse to access illegal contents. If they miss viewing the newly released films, they prefer to view illegal contents or films on recording media rather than visiting theaters showing those films. They are also influenced by timing of film release. Specifically, methods of illegal access to newly released films, permanent accessibility to them via recording media, and timing of film release influence their viewing patterns.

• Journal of the Korean Magnetics Society
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• v.19 no.2
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• pp.47-51
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• 2009

The surface structure of polycrystalline Fe films of various thicknesses on glass substrates have been studied using a Ti: Sapphire laser at 780 nm. We found that the surface structure possesses C$_s$ crystal structure close to $C_{2v}$ through symmetry consideration. We present one-fold intensity profile with one mirror plane in second harmonic (SH) intensity as a proof of $C_s$ symmetry. $C_s$ and $C_{2v}$ surface symmetries usually appear at the (110) surface of a cubic diamond single crystal [1]. Therefore this surface symmetry would be related to bcc (110) growth orientation coinciding with XRD measurement. Further we treated surface normalized SH asymmetry with various thicknesses. The SH asymmetry increases with increasing of film thickness. From these results, it is observed that the surface structure of thin polycrystalline Fe film below 5 nm is almost isotropic, while in the case of the thicker Fe films, surface structure have $C_s$ symmetry structure close to $C_{2v}$.