• Journal of Fashion Business
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• v.27 no.5
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• pp.108-120
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• 2023

Recently, interest in eco-friendliness and sustainability has been increasing due to the rapid progress of fast fashion and the crisis of sudden environmental changes after COVID-19. This study aims to develop upcycling textiles and express product design using digital 3D to realize a sustainable fashion industry and present environmental aspects, diversity, creativity, and new directions in fashion industry design. The research method is to develop and pattern upcycling textile designs by applying weaving techniques with waste materials. It uses the developed upcycling textile design in digital 3D to incorporate it into clothing fashion and shows the utility and practicality of upcycling textile design. As a result of the study, the appearance is realistic when outputting DTP of upcycling textile design. It endures without loosening or tearing, making it a durable and creatively expressive fashion item. Texpro 3D mapping reduces the time and cost of making actual sample fabric. Upcycling textile design and 3D CLO virtual clothing are combined to produce actual clothing samples, resulting in zero waste reduction due to cutting and sewing. This study anticipates actively and continuously advancing the development of upcycling textile design and digital 3D in terms of ethics and the environment.

• Journal of the Korean Society of Clothing and Textiles
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• v.30 no.3 s.151
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• pp.407-411
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• 2006

This study was carried out to investigate the physiological responses of obese children after a short-term wear training and education. A ten-week program was conducted on thirteen obese elementary school children of six boys and seven girls in the 4th to the 6th grade. During the program, the children were instructed to measure daily ambient temperature and weight of their clothing. Physiological responses of the sedentary children in 100$\%$ cotton short sleeved t-shirt (0.13clo) and T/C short pants(0.09clo) were observed in the climatic chamber of 23.0$\pm$0.5$^{circ}C$ and 50$\pm$5$\%$RH before and after program. During the experiment, internal ear temperature ($T_{ear}$), seven site skin temperatures, systolic blood pressure, diastolic blood pressure, heart rate, and subjective responses of thermal comfort and thermal sensation were measured every 5minutes. Mean skin temperature($T_{sk}$) and mean arterial pressure(MAP) were calculated. Obtained data are statistically analyzed and main results are as follows. There was highly significant correlation between the ambient temperature and the total clothing weight. $T_{ear}$ and MAP were reduced in the post-program compared to the pre-program. The obese girls felt slightly warmer than the obese boys and the girls were likely to prefer lower ambient temperature in the post-program than the pre-program. It was concluded that the 10 week wear training is apt to be more applicable to the obese girls than the obese boys. However, a more comprehensive study including. diverse measurements of deep body temperature with a long-term training would be needed to clarify the improvement of temperature adaptability in the obese children.

• Fashion & Textile Research Journal
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• v.17 no.4
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• pp.657-665
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• 2015

This study evaluated the thermoregulatory properties of functional thermal underwear ('heating underwear') in markets using a thermal manikin and human wear trials. One ordinary thermal underwear (ORD) and two functional thermal underwear (HEAT1 and HEAT2; manufactured goods, HEAT1: moisture absorbing heat release mechanism, HEAT2: heat storage, release mechanism) were chosen. Thermo-physiological and subjective responses were evaluated at an air temperature of $5.0{\pm}0.5^{\circ}C$ and air humidity of $30{\pm}5%RH$ with five male subjects ($21.6{\pm}1.3yr$ in age, $178.0{\pm}5.9cm$ in height, $68.2{\pm}5.9kg$ in body mass). Experimental conditions consisted of four ensembles that included winter clothes (Control: no underwear, ORD, HEAT1, HEAT2). Water-vapor resistance was greater in fabric of HEAT1 than others. The results were: 1) Total thermal insulation (IT) using a thermal manikin were not greater for HEAT1 (0.860clo) and HEAT 2 (0.873clo) than for ORD (0.886clo). 2) There were no significant differences in rectal temperature, mean skin temperature, heart rate and total body mass loss between the four conditions. Microclimate clothing temperature on the back was greater for ORD than for HEAT1 and HEAT2. Subjects felt more comfortable with HEAT1 than for others at rest. HEAT2 was higher in microclimate humidity when compared to other conditions. The results suggest that thermoregulatory properties of 'heating underwear' in market did not differ from those of ordinary thermal underwear in terms of total thermal insulation and thermoregulatory responses in a cold environment.

• Science of Emotion and Sensibility
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• v.18 no.3
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• pp.17-24
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• 2015

This study investigated heat generation characteristics of knitted and woven intelligent garments made of ZrC imbedded yarns through thermal manikin measurement. These emotional and intelligent thermal characteristics by thermal manikin measurement were analysed and compared with light/thermal radiation experimental results. Surface temperature of ZrC imbedded woven and knitted fabrics by light/thermal radiation measurement was $4^{\circ}C$ and $2^{\circ}C$ higher than that of regular PET control fabrics, respectively. Clo value as heat generation characteristics of ZrC imbedded woven and knitted garments with light exposure was 0.14 and 0.08 higher than that of regular PET control garments, respectively. These results were attributed to the far-infrared thermal radiation from ZrC imbedded in the core part of the intelligent bi-component filament, which was verified by far-infrared emissive power ranged between $6{\mu}m$ and $20{\mu}m$ through FT-IR experiment and by inclusion of Zr through EDS ingredient analysis. However, compressibility of ZrC imbedded woven fabric was lower than that of regular PET one, and bending rigidity was higher than that of regular one, which resulted in a little stiff tactile hand property of ZrC imbedded fabric. We found that ZrC imbedded intelligent woven and knitted fabrics were applicable to the intelligent garment as a heat generation textile material by thermal manikin measurement.

• Pediatric Gastroenterology, Hepatology & Nutrition
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• v.12 no.2
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• pp.150-155
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• 2009

Purpose: The aim of this study was to evaluate observed changes in the prevalence of biopsy-proven Helicobacter pylori infection in Korean children with functional recurrent abdominal pain during the past 18 years. Methods: Between July 1991 and December 2008, 1,194 children with functional recurrent abdominal pain (499 males and 695 females) 9.2${\pm}$3.1 years of age were included. Upper gastrointestinal endoscopies were performed in all patients. H. pylori infection was assessed by the CLO test. Changes in the prevalence of the endoscopic diagnosis of H. pylori infection during 18 years were analyzed. Results: The prevalence of H. pylori infection between 1991 and 1993, 1994 and 1996, 1997 and 1999, 2000 and 2002, 2003 and 2005, and 2006 and 2008 were 25.1% (56/223), 23.1% (45/195), 19.3% (28/145), 16.1% (39/242), 11.3% (24/213), and 10.8% (19/176), respectively; these serial decreases in the prevalence over 18 years were statistically significant (p<0.001). Regardless of gender and age, the prevalence of H. pylori infection decreased. This decrease was inversely related to socioeconomic improvement as represented by the per capita gross national income growth of Korea. Conclusion: The prevalence of H. pylori infection has decreased significantly for the past 18 years in Korean children. This decrease might be caused by an improvement in socioeconomic status.

• The Journal of the Korea Contents Association
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• v.22 no.5
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• pp.261-275
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• 2022

In this stage when K-Pop and K-Fashion have been drawing global attention, it is required to activate the Korean culture and fashion by developing fashion products which reinterpret various items in the Hanbok fields with modern sense in connection with Korean wave. Thus, this study aims to develop fashion products related to Korean wave with court dance costumes used in court banquets, which may be the origin of K-Pop, as the main theme, and to converge and expand culture and fashion fields. To this end, the original court dance costumes and their modern forms continuing in these days were analyzed and the costumes for Musanhyang, Yeonhwadae, Cheoyongmu, Chundaeokchok and Chunaengjeon differentiated from existing daily Hanbok were selected. The fashion products related to Korean wave reflecting the specific elements of those five costumes were designed. Then, the silhouette and sizes of those costumes were checked using the CLO, the 3D virtual clothing program and total 5 fashion products were created. In conclusion, the results of this paper will contribute on making Korean design popular on the design aspects, expanding the scope of Korean wave contents on the industrial aspects and globalizing the K-Fashion on the global aspects.

• Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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• 1997.11a
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• pp.262-265
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• 1997

Various polymeric electrolytes were prepared from PEG, PEO and PMMA with LiClO$_4$ to develop lithium conductive electrolytes for smart windows. The complementary electrochromic devices were fabricated with these electrolytes involving cathodically coloring WO$_3$ and anodically coloring V$_2$O$\sub$5/ thin films. The performance of electrochromic device with PMMA/LiCLO$_4$ electrolyte was found to be excellent

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2021.11a
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• pp.37-38
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• 2021

해상에서의 통신은 파도의 움직임에 의해 내륙에서의 통신에 비해 어려움이 있다. 본 논문에서는 Bretschneider 스펙트럼 모델을 이용하여 Open-Ocean에서의 파도의 움직임을 모델링다. 내륙에 위치한 기지국과 내륙으로부터 일정 거리 떨어진 해상에 위치한 부표와의 해상통신 환경을 고려하였으며, 모델링한 파도의 움직임을 바탕으로 부표부터 기지국까지의 거리에 대한 각도와 기지국부터 Block되어 Non-Line of Site(NLoS)된 지점까지의 거리에 대한 각도를 비교함으로써 Continuous-LoS(CLoS)구간을 확보하기 위해 파고 대비 안테나의 높이를 변경하며 비교했다.

• Fashion & Textile Research Journal
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• v.16 no.6
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• pp.961-970
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• 2014

Several retailers such as Target and Kohle's and their vendors have piloting the 3D clothing simulation programs to produce garment samples. However, few studies have verified the virtual fit information and 3d visualization process for pants, and no study compared the commercial 3D virtual programs. This study is designed to analyze similarity of fit and appearance between real pants with 3D virtual pants based on three 3D virtual programs (Optitex, CLO 3D, and i-Designer), three lower body types (slim, normal, and thick waist type), and fit status. We selected a representative model for each lower body type, produced their custom pants according to Lee and Nam's method(2007), and took photos of front, side and back view for visual analysis. Then, we virtually tried each model's custom pants on her parametric avatar developed by manually inputting their body measurements using the three 3D virtual program. Thirty fit experts compared the real fit to virtual fit. This study found that 'Optitex' and 'i-Designer' can visualize more effectively than 'CLO 3D' in many fit locations. Regarding the body types, 3D virtual program can visualize pants fit for 'thick waist body type' more preciously than the other body types. With respect to fit status, it does not affect much on the similarity overall.

• Journal of the Korean Society of Clothing and Textiles
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• v.23 no.7
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• pp.1019-1029
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• 1999

In order to find out the influences upon not only the thermal resistance of human body but also the clothing action and the clothing weight which are caused by the differences in the thermal living conditions by using air conditioner and so on to adapt themselves to the changes of their residential environment according to the changes of seasons we investigated the clothing practices upon the male and female students in Seoul and Korean male and female students in Yanbian who are estimated to have different thermal living conditions in spite that they are same folk as well as living in the same age. 1. The total clothing weight of body surface erea was increased in order of summer autumn spring and winter seasons and by seasons the changes of the clothing weight were found in both areas, In Seoul the changes of upper outwear clothing weight were found on both sexes but in Yanbian the changes of underwear weight were found on both sexes. And the underwear weight of both sexes in Seoul was lighter than that of both sexes in Yanbian. 2. Those in Seoul tended to fell colder in winter and hotter in summer than those in Yanbian on account that the formers are more sensitive of thermal conditions than the latters. 3. Comparing clo-value claculated by the fomula of with the Winshlow's clo-value those in Yanbian had higher thermal resistance than those in Seoul. Consequently those in Seoul adapted thermselves to the seasons by controling the upper outwear weight but those in Yanbian did it with underwear weight, The male and female students in Seoul tended to feel colder in winter and hotter in summer than hose in Yanbian because the thermal sense of the former is more sensitive than that of the latter.