• Journal of the Korean Society of Clothing and Textiles
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• v.35 no.6
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• pp.621-634
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• 2011

This study analyzed the influencing factors on consumer purchase deferrals for internet clothing shopping. In addition, based on consumer demographics, it compared the differences of purchase deferrals with respect to clothing items, prices, and types of shopping malls. For an empirical study, 405 questionnaires were answered by respondents in their 20s and 30s with internet clothing purchase deferral experience. Data were analyzed using: SPSS for Windows 12.0 and descriptive statistics, reliability analysis, factor analysis, $X^2$-test, and regression analysis. The results of this study were as follows. First, the order of items with many purchase deferrals in internet clothing shopping were casual T-shirt>casual skirts>pants, one-piece>suits>sportswear>blouse/shirts and 58.3% of purchase deferrals happened when the price was below \50,000. Second, the significant differences in products, prices, and shopping malls for purchase deferrals were identified according to consumer demographics. There were significant differences in clothing items according to gender, age, marriage, and education; however, there were significant differences only according to gender in terms of price. There were significant differences according to gender, age, marriage, education, and income in terms of the used shopping malls. Third, for the analysis of the influence of diverse factors that can affect purchase deferrals for internet clothing shopping, the more information search, purchase deferral habits, perceived risks, and deficiency in shopping mall supply conditions were when higher purchase deferrals occurred. For a strong competitive online market, this study can help internet clothing shopping mall entrepreneurs manage products and customers by analyzing the lists of purchase deferrals indicated in "cart" and by administrating the influential factors for purchase deferral.

• Proceedings of the Korean Society of Dyers and Finishers Conference
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• 2012.03a
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• pp.53-53
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• 2012

Poly(lactic acid)(이하 PLA라 칭함)는 초기 연구에서는 제조비용과 희귀성으로 봉합사 등의 의료용 등의 용도가 제한적이었으나 1980년대의 유전공학의 발전과 이를 바탕으로 1990년 이후 농업의 혁신적인 변화를 거쳐 옥수수의 여러 측면의 이용 중의 하나로서 2000년 초에 양산화에 성공하여, 의류, 필름 및 플라스틱의 다양한 분야에서 적용되고 있다. PLA의 장점은 석유가 아닌 천연 원료에서 얻을 수 있으며, 기존의 합성섬유와는 달리 일정한 조건하에서 미생물 등에 의해 물과 이산화탄소로 분해되는 친환경적인 소재이다. 합성섬유 중에서 의류용의 대부분 차지하는 폴리에스테르(이하 PET라 칭함)와 유사한 물성을 가지고 있는 PLA섬유는 PET섬유와 유사한 분산염료로 염색할 수 있다. 따라서 PLA섬유는 분산염료에 의한 염색법을 중심으로 연구되어지고 있으나, PET 섬유의 융점이 $254^{\circ}C$부근인 반면, PLA섬유는 $160-170^{\circ}C$ 부근이다. 이로 인해 PLA를 섬유로 용도전개에 있어서 약점으로 작용하고 있다. 그러나 PLA섬유는 특유의 경량감과 새로운 촉감 등의 많은 장점을 지니고 있어 여러 가지 용도전개가 되어지고 있다. 배트염료는 그 자체로서는 불용성으로 섬유와 친화성이 낮지만, 알칼리성 환원욕에서 셀룰로오스 섬유 등에 친화성이 있다. 화학구조적으로 안트라키논, 인디고계가 주류를 이루고 있으며, 색상적으로는 화학구조의 제약으로 선명도가 약깐 낮은 중간색 계통이 대부분이지만, 견뢰도 면에서는 다른 염료에서는 얻을 수 없는 높은 견뢰도를 가지는 것이 배트염료가 지니는 장점중의 하나이다. 셀룰로오스계 섬유에 주로 이용되는 배트염료를 나일론과 폴리에스테르 중심으로 합성섬유에 적용하는 연구 및 실용화가 되어지고 있다. 본 연구에서는 Indigo Blue 1을 중심으로 염색된 PLA섬유의 반복 세탁에 의한 염색물의 변 퇴색성을 조사하였다.

• Korean Journal of Human Ecology
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• v.11 no.4
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• pp.367-380
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• 2002

This study tries to search and analyze empirically the clothing merchandise purchase motivation and behavior made by foreign visitors who bought clothes as tour memorials in South Korea. To make a empirical study we made survey research and evaluated 30 items for the survey of clothing purchase motivation and 25 items for the survey of the importance and satisfaction revealed at the time of purchase with the standard of Likert 5 point. We had chosen 614 sample participants including 176 English speakers, 211 Japanese speakers, and 277 Chinese speakers among those foreign tourists who had purchased clothing materials at the Dongdaemun Shopping Mall. The result of analysis is as follows : As the result of factor analysis about the clothing merchandise purchase, we had 6 factors. They are (1)impulse, (2)utility, (3)fashionableness, (4)tour commemoration (5)psychology (6)economy. As the result of cluster analysis based on the standard of selected 6 factors of clothing merchandise purchase motivation, we could divide three groups such as (1)the pursuit type of clothing merchandise purchase, (2)the pursuit type of recreation of feeling (3)the pursuit type of tour memorial. As the result of analysis on the items of purchased clothing merchandise, the highest frequency of purchase was made by T-shirt, then by the order of sweater, blouse, and aloha shirt, pants, and jacket. In regard to the importance of items related to clothing merchandise, the highest importance was made by design, then by the order of price, size, color and utility, and style. In regard to the items related to the service of shopping mall, the highest satisfaction was made by the convenience of business hour. Meanwhile, the lowest satisfaction was made by the inconvenience of fitting room, the speaking and by ability of foreign languages by sales agents.

• Korean Journal of Human Ecology
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• v.15 no.1
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• pp.141-148
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• 2006

The purpose of this study is to analyze the dimensions of clothing involvement of female undergraduates in Busan and some influential factors of TV on the clothing involvement. This research also shows the correlations among variables and the differences in clothing involvement and TV media-related influential factors by the customer types. The results of this study are as follows: 1. The clothing involvement is categorized into five factors: pleasure, fashionableness, symbolism, danger awareness, and disinterest in clothing. Four TV media-related influential factors are identified: conformity to entertainers' clothing, interest in entertainers, interest in TV-watching, and imitation of entertainers. 2. An analysis of correlation between clothing involvement and TV media-related variables shows that there is a correlation between conformity to entertainers' clothing and various clothing involvement factors as fashionableness, symbolism and pleasure. A factor of interest in TV-watching is related to symbolism and interest in clothing. A factor of imitation of entertainers is related to fashionableness and disinterest in clothing. 3. An analysis of the differences by the customer types leads to four types of categorization. Type 1 shows low interests in clothing and TV media-related variables. Type 2 demonstrates high clothing involvement and interest in TV-watching. Type 3 is classified as a high involvement/ conformity group, which not only shows high involvement in pleasure and symbolism of clothing but also high conformity to entertainers' clothing. And lastly, type 4 is an disinterest group but it shows high interest in TV-watching, entertainers and imitation of entertainers.

• Korean Journal of Human Ecology
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• v.16 no.3
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• pp.623-630
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• 2007

The remarkable fact regarding the History of Chosun Dynasty(from Jungjong- Youngjo) is that any slightest evidence can't be found that Pobeckchuck was used to measure clothes or various Pobecks. There remains the document that in the 22nd years of Myeonjong, Japan required that Pobeckchuck be used, but it couldn't be allowed because of the reason it was made in the former king. This fact raises the high possibility that Pobeckchuck could be the most trustworthy standardized ruler at that time, and in other point of view, it can be presumed that the measurement in the period of King Sejong continued to have been used until this time. It can be seen that the length of one Chuck of Pobeckchuck at this time must have been equivalent to 46. 73cm of Pobeckchuck of Samchuck in the period of Sejong. In the History of Sunjo Period, many records on Pobeckchuck can be found, which fact seemed to have rectified the measurement system which was disordered by military revolt, though the reason is not clear. Also a record can be found that in the period of Sunjo, Chinese envoy required the Sunjo Regime to use Pobeckchuck for the measurement of copper pillar, which record supports the fact that Pobeckchuck is the standardized ruler. Another record that in the 26th period of Youngjo, Pobeckchuck of Samchuck was corrected according to the Kyeongkukdaejeon shows that the length of Pobeckchuck was 46.80cm at that time. Also, the record which rectified many rulers with the comparison of Hwangjong-chuck, Ju-chuck, Joryeki-chuck, Yongjo-chuck, etc. with one another reveals that the rulers used in the period of Sejong continued to have been used unchanged until in the period of Youngjo.

• Korean Journal of Human Ecology
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• v.18 no.5
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• pp.1087-1092
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• 2009

From the environmental adaptation point of view, the clothing habits made by the thermal sensation and clothing weight of elderly women have changed according to the thermal sensation and health condition. The purpose of this study was to obtain the basic data for developing healthy and comfortable clothing for elderly women. Clothing weight, thermal sensation, clothing microclimate, resistance to cold and heat of 198 elderly women in Taejeon were surveyed from October 9, 2007 to October 19, 2007. 1. Clothing weight per body surface area was $830.4g/m^2$ of total clothing weight, $242.8g/m^2$ of underwear clothing weight, $617.3g/m^2$ of outerwear clothing weight, $419.8g/m^2$ of upper clothing weight, and $420.4g/m^2$ of lower clothing weight. 2. More than 90% of the respondents replied that they felt comfortable when the temperature inside the clothing was $33.5^{\circ}C$ and humidity inside the clothing was 30.2%. 3. The elderly women were more sensible to cold than to hot, those who felt cold had a tendency to wear heavier clothing. 4. The appeal rate for physical pain of older and lower income people, especially those with an income under 1,000,000 won, was higher than that of others. On the other hand, the lower the subjective economic level, the younger they were, and the more the monthly average income was, the higher the rate of mental pain. 5. The heavier the total clothing weight was, the higher the appeal rate for general pain.

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 2004.10a
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• pp.433-436
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• 2004

In this paper, we introduce a new Fuzzy Polynomial Neural Networks (FPNNS)-like structure whose neuron is based on the Fuzzy Set-based Fuzzy Inference System (FS-FIS) and is different from that of FPNNS based on the Fuzzy relation-based Fuzzy Inference System (FR-FIS) and discuss the ability of the new FPNNS-like structure named Fuzzy Set-based Polynomial Neural Networks (FSPNN). The premise parts of their fuzzy rules are not identical, while the consequent parts of the both Networks (such as FPNN and FSPNN) are identical. This difference results from the angle of a viewpoint of partition of input space of system. In other word, from a point of view of FS-FIS, the input variables are mutually independent under input space of system, while from a viewpoint of FR-FIS they are related each other. The proposed design procedure for networks architecture involves the selection of appropriate nodes with specific local characteristics such as the number of input variables, the order of the polynomial that is constant, linear, quadratic, or modified quadratic functions being viewed as the consequent part of fuzzy rules, and a collection of the specific subset of input variables. On the parameter optimization phase, we adopt Information Granulation (IC) based on HCM clustering algorithm and a standard least square method-based learning. Through the consecutive process of such structural and parametric optimization, an optimized and flexible fuzzy neural network is generated in a dynamic fashion. To evaluate the performance of the genetically optimized FSPNN (gFSPNN), the model is experimented with using the time series dataset of gas furnace process.

• Journal of Hydrogen and New Energy
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• v.26 no.2
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• pp.105-113
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• 2015

In order to accelerate hydrogen society in current big renewable energy trend, it is very important that hydrogen can be transported and stored as a fuel in efficient and economical fashion. In this perspective, liquid hydrogen can be considered as one of the most prospective storage methods that can bring early arrival of the hydrogen society by its high gravimetric energy density. In this study, a small-scale hydrogen liquefier has been designed and developed to demonstrate direct hydrogen liquefaction technology. Gifford-McMahon (GM) cryocooler was employed to cool warm hydrogen gas to normal boiling point of hydrogen at 20K. Various cryogenic insulation technologies such as double walled vacuum vessels and multi-layer insulation were used to minimize heat leak from ambient. A liquid nitrogen assisted precooler, two ortho-para hydrogen catalytic converters, and highly efficient heat pipe were adapted to achieve the target liquefaction rate of 1L/hr. The liquefier has successfully demonstrated more than 1L/hr of hydrogen liquefaction. The system also has demonstrated its versatile usage as a very efficient 150L liquid hydrogen storage tank.

• Journal of the Korean Society of Costume
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• v.36
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• pp.77-95
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• 1998

The culture of a country is formed by the sense of value of a nation being a creator as well as on operator of the culture. So, the Chinese culture and fruthermore, the sense of value the Chinese people can be understood through the study of the costume of China. Above all, the culture of China, including the costume, have been formed through the his-tory of exchange between the central Chinese people and its surrounding minority races, and it should not be overlooked that its own culture of each race is existing with each other in the great Chinese culture sphere. In the paper, the concept of costume as relections of a culture is confirmed through the examination of the characteristics of the costume of the Miao tribe with such history and culture as a background and on effort is made to take those as resources modern fashion designs while inferring from them the characteristics of costume with universal and original values sthat can be sublimated into the modernistic beauty. The results of the study are as follows. First, the basic composition consists of a simple jacket made in a way of straight-cut-ting and a close pleated skirt and it tended to put emphasis on diversified and splendid decorations compared with the simple basis composition. Second, the costume of the Miao tribe are characteristic of hair done in a knot with head-dress around head. Third, the kinds of dress are multifarious by race and region due to a long period of mobile and disperse life. In the course of studying the universal value of the Miao tribe is confirmed which is by no means inferior to the standard of the medernistic beauty which keeping its originality. The study is made to be helpful for activating the design going with the trend that the basic harmony between the nature and man, that is a climate and the local cul-ture hearing formed a splendid culture in the past, are being found again.

• Journal of the Korean Society of Costume
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• v.56 no.3 s.102
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• pp.28-41
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• 2006

The purposes of this study were to analyze 'well-being' lifestyle pursuits depending on consumer types and to classify female consumer types according to their 'well-being' awareness. This study also intended to examine the levels of consumers' participation in pursuing a 'well-being' lifestyle, and to find female consumers' characteristics related to well-being lifestyle. The results of study were as follows: First, female consumers were classified in terms of their lifestyle by using their participation in, and awareness of well-being concerns. The results were divided into four groups: society/family-oriented group, 'well-being' oriented leading group, trend-oriented material wealth pursuit group, and selt~centered/fashionable appearance-oriented group. Second, the results of examining characteristics by female consumer type in terms of their pursuit of a well-being lifestyle show that the 'well-being' oriented leading group had the greatest number of innovators and followers. Also, the trend-oriented material wealth pursuit group consisted of mostly medium level participants, and the self-centered/fashionable appearance-oriented group had the greatest number of 'well-being' lifestyle bystanders. With regards to practical participation group, significant differences were found in the sections of 'health', 'leisure' and 'whole', except for 'appearance management'. With regards to purchase experience of 'well-being' products, the health-oriented leading group was the highest participation level in the sections of 'clothes' and 'food', except for 'residence', in which the society/family-oriented group was the highest. Third, demographical characteristics within female consumer types classified by 'well-being' lifestyle showed that the society/family-oriented group had a high percent of. dedicated housewives in their forties or fifties, and the trend-oriented material wealth pursuit group has a high percent of married people in their twenties or thirties. Also, the self-oriented/fashionable appearance-oriented group had a high percent of unmarried. people in their twenties.