• KOREAN JOURNAL OF CROP SCIENCE
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• v.45 no.4
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• pp.261-266
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• 2000

This study was to investigate antioxidative activity of rice grain using 1, 1-Diphenyl-2-picrylhydrazyl(DPPH) and thiobarbituric acid (TBA) method and germination ability for screening rice varieties with high antioxidative activities on korean native and foreign rice varieties harvested in 1998 and 1999. The average antioxidative activity of foreign rice varieties (DPPH 63.5% and TBA 55.2%) was significantly higher than that of native rice varieties (DPPH 47.2% and TBA 45.6%) on varieties harvested in 1999. The promptness index (PI) of native rice varieties was higher in stored rices for three months (mean PI=160.7) than that of stored rices for a year (mean PI=141.6). On the other hand, the PI of foreign rice varieties was higher in stored rices stored for a year (mean PI=176.7) than that of stored rices for three months (mean PI=157.5). Varieties with high redness of hulled rice (a-value) showed significant lipid peroxidation inhibitory activity to DPPH in a stored rices for a year (r=${0.5744}^**$) and stored rices for three months (r=${0.5630}^**$) . These results indicate that the pigments of hulled rice varieties may play important antioxidative roles and colored rice varieties with higher antioxidative potentials can be developed and also may provide information with rice breeder to breed rice variety with a high antioxidative activity for a rapid screening of a small amounts of a large number of samples using color value.

• The KIPS Transactions:PartB
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• v.11B no.1
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• pp.91-98
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• 2004

This paper proposes how to support various media on online conversational activity using XML(extensible Markup Language). The method converts media information into XML based messages and handles alike conventional text based messages. The XML based messages are unified to an XML document, and then a HTML document is generated using the XML and an XSLT documents in a server. A user in each client can play or present media through the hyperlink that is associated media information on the HTML document. The suggested method supports use of various media (text, image, audio, video, documents, etc) and efficient maintenance of font size, color, and style on messages according to extension and modification of XML tags. For application, this paper implemented the system to support media that has client and server architecture on online conversational activity. A user in each client inputs text or media based message using JAVA applet and servlet on the system, and conversational messages on every users' interfaces are automatically updated whenever a user inputs new message. Media on conversational messages are played or presented according to a user's click on hyperlink. Applications for the media presentation are as follows : distance learning, online game, collaboration, etc.

• Journal of the Korean Society of Costume
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• v.60 no.8
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• pp.132-150
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• 2010

The purpose of this research was to study the forms and styles of the costumes in the Peking Opera of China and to figure out the symbolism and aesthetic value of the costumes. The research was done using documentary Peking Opera, the costumes can be seen as a special kind of language which audience members can clearly understand it. Therefore, the spectators can understand instantly the sex, age, personality, and position of the character by seeing the style, color, and patterns of the costumes. As a result, one can call the costumes of Peking Opera, "picturizing costumes". The typical costumes are mangpao, pi, kao, xiezi, yi. Mangpao is the ceremonial robe often used by emperors and officials. It can be worn by lao sheng, xiao sheng and wu sheng. Bright yellow and apricot yellow colors are used exclusively by those who play the parts of emperors, foreign rulers, princes and the Monkey King. The next costume style to be discussed is Pi. Pi is the informal dress for the emperor, and young officials that are involved in civilian or military duties. The third costume style to be explored is Kao: the garment that a stage warrior wears when going into battle. This warrior can have three kinds of armor: the hard armor, the soft armor and the newly revised armor. Fourthly, the costume that is the most commonly worn, xiezi, is examined; it is the informal coat for every one regardless of one's age, sex, role, or level of nobility. Finally, the last of the typical costumes is Yi; this costume category includes numerous kinds of costumes, such as kaichang, baguaiyi, fayi, guanyi, yulinjia, kanjian, toupeng, jianyi, etc

• Journal of Korea Multimedia Society
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• v.10 no.8
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• pp.967-980
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• 2007

Video objects of interest play an important role in representing the video content and are useful for improving the performance of video retrieval and compression. The objects of interest may be a main object in describing contents of a video shot or a core object that a video producer wants to represent in the video shot. We know that any object attracting one's eye much in the video shot may not be an object of interest and a non-moving object may be an object of interest as well as a moving one. However it is not easy to define an object of interest clearly, because procedural description of human interest is difficult. In this paper, a set of four filtering conditions for extracting moving objects of interest is suggested, which is defined by considering variation of location, size, and moving pattern of moving objects in a video shot. Non-moving objects of interest are also defined as another set of four extracting conditions that are related to saliency of color/texture, location, size, and occurrence frequency of static objects in a video shot. On a test with 50 video shots, the segmentation method based on the two sets of conditions could extract the moving and non-moving objects of interest chosen manually on accuracy of 84%.

• The Journal of Korean Academy of Prosthodontics
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• v.46 no.3
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• pp.227-237
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• 2008

STATEMENT OF PROBLEM: Zirconium oxide can be a substitute to titanium as implant materials to solve the esthetic problems of dark color in the gingival portion of implant restorations. PURPOSE: This study was performed to define attachment and growth behavior of osteoblast- like cells cultured on grooved surfaces of zirconium oxide and evaluate the genetic effect of zirconium oxide surfaces using the reverse transcriptase-polymerase chain reaction (RT-PCR). MATERIAL AND METHODS: MC3T3-E1 cells were cultured on (1) commercially pure titanium discs with smooth surface (T group), (2) yttrium-stabilized tetragonal zirconia polycrystal (Y-TZP) with machined surface (ZS group), and (3) Y-TZP with $100{\mu}m$ grooves (ZG group). Cell proliferation activity was evaluated through MTT assay and cell morphology was examined by SEM. The mRNA expression of Runx2, alkaline phosphatase, osteocalcin, TGF-${\beta}1$, IGF-1, G3PDH in E1 cells were evaluated by RT-PCR. RESULTS: From the MTT assay, after 48 hours of adhesion of MC3T3-E1 cells, the mean optical density value of T group and ZG group significantly increased compared to the ZS group. SEM images of osteoblast-like cells showed that significantly more cells were observed to attach to the grooves and appeared to follow the direction of the grooves. After 24 hours of cell adhesion, more spreading and flattening of cells with active filopodia formation occurred. Results of RT-PCR suggest that T group, ZS group, and ZG group showed comparable osteoblast-specific gene expression after 24 hours of cell incubation. CONCLUSION: Surface topography and material of implants can play an important role in expression of osteoblast phenotype markers. Zirconia ceramic showed comparable biological responses of osteoblast-like cells with titanium during a short-time cell culture period. Also, grooves influence cell spreading and guide the cells to be aligned within surface grooves.

• Journal of IKEEE
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• v.23 no.4
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• pp.1128-1133
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• 2019

This paper proposed colored front panel glass for Building Integrated Photovoltaic (BIPV) systems using multi-layered thin films composed of transition metal oxide (TMO) layers. Molybdenum oxide (MoO₃) and tungsten oxide (WO₃) provided complementary and suitable materials in making effective interference of reflected light from interfaces with significant difference in refractive indices. A simple, fast, and cheap fabrication method was achieved by depositing the multi-layer films in a single thermal evaporator. Magenta colored glass with optical transmittance of more than 90% was achieved with MoO₃ (60nm)/WO₃(100nm) multi-layered film. This technology could play in a critical role in commercial BIPV system applications.

• Journal of the Korean Society of Costume
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• v.63 no.1
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• pp.42-55
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• 2013

As performing arts including operas are getting popular these days, the importance of stage costumes is strengthened. Stage costume is one of the artistic requisites for opera performance, it plays an important role in describing the play's situation, the director's style and the person's character. Nevertheless the study regarding the opera's costumes is not active, especially the comparative study on the same opera's costumes performed by different opera companies have hardly been made. Therefore this study compared 5 Manon Lescaut opera performances: the Metropolitan Opera(1980), the Flemish Opera(1991), the Metropolitan Opera(2008), the Seoul Metropolitan Opera(2010) and the Vienna State Opera(2010) and made clear the difference between the four. From this study, we can get the following conclusions. First, the Metropolitan Opera's costumes in 1980 act and in 2008 act ascertained Rococo dressing. Because the costume designer for both acts was the same person, the general costume styles of the two acts are similar. Second, as for the Flemish Opera and Seoul Metropolitan Opera, there was a significant drop in fancy details and trimmings in the costumes. But the costumes made strong impressions dues to its color and luminosity contrast. Third, Vienna State Opera costumes had the boldest designs and it reflected modern designs as well. This study is meaningful in that it is based on the comparison study on the same opera stage costumes designed by different directors. Afterward this study is expected to contribute toward study on opera stage costumes and stage costume's development.

• The Research Journal of the Costume Culture
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• v.23 no.6
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• pp.972-986
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• 2015

This study seeks to explore the relationship between clothing adaptation and acculturation for married Chinese immigrant women. In addition, it aims to analyze the differences in their clothing consumption behaviors according to acculturation level. To achieve these purposes, a quantitative research study was conducted on 291 wives of Korean-Chinese multicultural families in Seoul and Gyeonggi. The data was analyzed using factor analysis, cluster analysis, ANOVA, and the Duncun test. The findings were as follows. First, the women were divided into three groups based on their level of acculturation, which was defined as 'assimilated', 'marginalized' and 'segregated'. Second, the relationship between their acculturation level and their clothing adaptation was identified. The marginalized group had the lowest level of clothing adaptation. Third, the groups' differences in clothing selection criteria were analyzed. The segregated group considered the practical aspects (price, color, quality) of clothing to be more important than the other groups. The marginalized group scored the lowest in valuing the aesthetic factors (design, style, trendiness) of clothing. Finally, conformity of clothing consumption varied significantly based on acculturation level. The assimilated and marginalized groups showed higher levels conformity than did the segregated group. Clothing purchase location also varied significantly between the three groups. The assimilated and marginalized groups preferred online shopping, but members of the segregated group preferred to carry out their shopping off-line. This study showed that clothing adaptation and clothing consumption behaviors play key roles in understanding the acculturation of multicultural families.

• Proceedings of the Korean Society of Crop Science Conference
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• 2017.06a
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• pp.39-39
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• 2017

In Asia, sweet potato (Ipomoea batatas) is a very important crop for starch production. Approximately 74.3% of the total sweet potato production quantity is produced in Asia (FAO, 2014) and China is the largest producer of sweet potato. Post-harvest management is particularly important because it is difficult to maintain the quality as well as quantity of sweet potatoes. Despite the importance of post-harvest management, researches on sweet potato have been focused on production-related study such as breeding of new variety, improved techniques of cultivation, so there is limited research on storage after harvest. Curing is a normal practice after sweet potato harvest to promote wound healing and extend postharvest storage life. In Korea, harvested sweet potatoes are usually cured for 4 to 7 days at $30-33^{\circ}C$ and 80-95% relative humidity within one week. Since the optimum storage temperature of sweet potato is regarded as $15-20^{\circ}C$, additional facilities and costs are required to raise the temperature for curing. However, the majority of small farmers do not have the capacity to provide additional facilities and costs. This study was initiated to suggest a new curing method to accelerate the wound healing by applying chemical oxidation to the wound surface of sweet potato. Oxidative stress is known to play an important role in the synthesis of secondary metabolites including lignin. In addition, chemical oxidation can be applied to prevent spoilage caused by microorganisms. Powerful gaseous oxidant with excellent penetration ability and superior sterilization effect was selected for this study. Lignification, weight loss, and spoilage rate of artificially wounded sweet potatoes were investigated after oxidant fumigation. There were clear differences in morphological analysis such as lignification pattern, lignin deposition color, and continuity of lignified cell layers between oxidant-fumigated sweet potatoes and control. These results show that gaseous oxidant can be used to supplement or replace the curing practice, to improve shelf-life as well as curing cost reduction.

• Journal of the Korean Society of Costume
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• v.52 no.7
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• pp.103-121
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• 2002

This study intended to analyze the transition of design of Korean soccer player's uniform according to development of the society and changes in formative elements, and examine features inside them by considering designs of soccer player's uniform by ages ranging from the introduction of soccer up to now. Results of the study are summed up below. First, as a result of analyzing designs of soccer player's uniforms from 1920 to 2002 Korea-Japan WorldCup based on formative elements of the style of dress. \circled1 it is shown that basic shape has been kept but changes in only color. cutting, trimming, logo and symbol have existed. \circled2 Colors of the uniforms have been different according to ages but red, blue and white colors have been used most and sometimes black was employed. so it is known that colors in the Korean national emblem have been all used. \circled3 In the beginning of the uniform there was a limitation in its design due to absence of functional materials but now highly-sensitive textile products and highly-functional textile materials guaranteeing optimal condition and highest activity of a soccer player have been utilized in various ways. \circled4 It is known that symbols modelling the image of Korea have been used in diverse ways but effected much by directions toward images pursued by designers of sponsors. Second, the meanings represented by designs of the uniforms are classified into a degree of symbolizing Korea, tradition, superiority and dynamics. That is to say, \circled1as colors and symbols coming from the emblem have been used in the uniforms. they have symbolized one nation and possessed the meaning representing even Korean national spirit. \circled2As traditional colouring and symbols have been used in the uniforms, they have shown the Korean sense of a beauty. \circled3 Colors, tones and designs overwhelming the mood of play have been used in the uniforms, so that they have played a role in making players of other team flinch mentally and making Korean players gain an advantage over them. \circled4 Thanks to strong symbols or comparative effects of colors. they have shown the dynamics representing power and energy.