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المؤلفون: Hae Ryung Park, Hyun Young Choi, Min Jae Ko, Lee Yongwoo, Dong Il Yoo, Cheol Ho Kim, Yong Jo Kim, Kyu Soo Ahn, Gi Chang Lee
المصدر: SID Symposium Digest of Technical Papers. 51:1226-1229
مصطلحات موضوعية: Materials science, Fabrication, Image quality, business.industry, Process (computing), Process engineering, business
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المؤلفون: Miyeon Lee, Dong Il Yoo, Sungmin Kim
المصدر: International Journal of Clothing Science and Technology. 29:857-867
مصطلحات موضوعية: 010407 polymers, Scanner, Body scanner, Polymers and Plastics, Computer science, business.industry, Materials Science (miscellaneous), 020207 software engineering, 02 engineering and technology, Object (computer science), 01 natural sciences, General Business, Management and Accounting, 0104 chemical sciences, Non contact measurement, 0202 electrical engineering, electronic engineering, information engineering, Business, Management and Accounting (miscellaneous), Statistical analysis, Computer vision, Artificial intelligence, Depth perception, business, Practical implications
الوصف: Purpose The purpose of this paper is to develop a relatively inexpensive and easily movable three-dimensional (3D) body scanner. Design/methodology/approach Multiple depth perception cameras and a turntable were used to form the hardware and a client-server computer network was used to control the hardware. Findings A portable and inexpensive yet quite accurate body scanner system has been developed. Research limitations/implications The turntable mechanism and semi-automatic model alignment caused some error. Practical implications This scanner is expected to facilitate the acquisition of 3D human body or garment data easily for various research projects. Social implications Many researchers might have an easy access to 3D data of large object such as body or whole garment. Originality/value Inexpensive yet expandable scanning system has been developed using readily available components.
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المؤلفون: Younsook Shin, Dong Il Yoo
المصدر: Textile Science and Engineering. 53:63-67
مصطلحات موضوعية: Bamboo, Textile, Computer science, Evaporation, 02 engineering and technology, 010402 general chemistry, 01 natural sciences, Chitosan, chemistry.chemical_compound, Adsorption, Fiber, biology, business.industry, Fossil fuel, Regenerated cellulose, 021001 nanoscience & nanotechnology, biology.organism_classification, Antimicrobial, Pulp and paper industry, 0104 chemical sciences, chemistry, Acrylamide, Punica, Lyocell, Dyeing, 0210 nano-technology, business
الوصف: Concern for the environment, depletion of fossil fuels, and consumer demand for eco-friendly and well-being are driving force to develop green products. There has been growing demand to develop finishes for textile materials imparting protection against microbes. Bamboo is one of abundant renewable biomass materials. Bamboo fiber which is one of regenerated cellulose fibers is already been used for textile products. Bamboo fiber has many useful properties such as antibacterial, high absorbency and hygroscopicity, and UV-resistant property [1,2]. It has cool and smooth feel, and excellent wicking so that is suitable for summer clothing, dishcloth, gauze bandage, medical drape, towel, etc. In most cases surface of bamboo fiber has negative charges and so, cationic polymers readily adsorbed onto the surface of bamboo fiber [3]. Bamboo fiber, which is otherwise not dyeable with acid dyes, coluld be renderd acid dyeable by acrylamide grafting onto bamboo fiber [2]. For better performance properties, it is usually blended with other fibers such as cotton, hemp, silk, Lyocell(Tencel), Modal, cotton chemical fiber and so on [4]. The cross-section of bamboo fiber is filled with various micro-gaps and micro-holes. With this unparalleled micro-structure, bamboo fiber can absorb and evaporate sweat very quickly [1]. Pomegranate (Punica granatum L.) belonging to the family Punicacea, is originally a native of Persia and nowadays it is generally cultivated at warm countries in the world. Corresponding Author: Younsook Shin E-mail: yshin@chonnam.ac.kr
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::d8a2e7987b7d7a5af9c543687220001d
https://doi.org/10.12772/tse.2016.53.063 -
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المؤلفون: Younsook Shin, Chan Hee Jung, Dong Il Yoo, Hyo Jung Cho
المصدر: Textile Science and Engineering. 52:281-308
مصطلحات موضوعية: Engineering, business.industry, media_common.quotation_subject, Civil engineering, Engineering education, Paradigm shift, Unemployment, Specialization (functional), Sustainability, ComputingMilieux_COMPUTERSANDEDUCATION, Engineering ethics, Duration (project management), business, media_common, Accreditation, Graduation
الوصف: c2015 The Korean Fiber Society 일송 하완식 교수님 20주기 추모논문 Abstract: The influx of innovation is urgently required to the fiber(textile) engineering education in Korea. In this review, we analyzed the present situation of both the industrial (engineering) ecosystem and the engineering education, and forecasted the direction where the fiber engineering education is going on. Rapid changes such as an increase in income level, a decrease in birth-rate, and reshaping the human lifestyle are taking place in Korea. Continuous improvement is required to the contents and the objectives of engineering education in each program. There are some serious problems for most of the students in universities, including a reduction in the credits for graduation, numerical decrease in entrance as well as graduation, the longer duration in universities, the increase in the unemployment ratio, the paradigm shift in education environment. To cope with the tremendous changes in industrial (engineering) ecosystem, we suggest that an expansion of using convergence technology, specialization for differentiation in education, improvement of educational content, and selective induction of an engineering accreditation system with the help of academic society are inevitable for the sustain-ability of fiber (textile) engineering education.
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::f2a437a96217a0adb6a8badfff2c841e
https://doi.org/10.12772/tse.2015.52.281 -
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المؤلفون: Younsook Shin, Dong-Il Yoo, Kyunghee Son
المصدر: Thermochimica Acta. 511:1-7
مصطلحات موضوعية: Materials science, Textile, Color difference, Scanning electron microscope, business.industry, Condensed Matter Physics, Rubbing, chemistry.chemical_compound, Differential scanning calorimetry, Octadecane, chemistry, Latent heat, Physical and Theoretical Chemistry, Composite material, Thermal analysis, business, Instrumentation
الوصف: The objective of this study was to develop natural dyed fabrics with thermo-regulating properties. Microcapsules (MCs) containing n -octadecane and n -eicosane were applied to the natural indigo-dyed cotton fabrics using the dot-screen printing method. A 50/50 mixture of the two MCs was also applied. At similar loading amounts for the microcapsules, the fabrics were capable of absorbing 18.66, 14.80, and 14.68 J g −1 of latent heat for the n -eicosane MCs, the n -octadecane MCs, and the mixture of the two MCs, respectively. After 20 laundering cycles, about 94% of the latent heat was retained. The color of the fabrics changed negligibly with color difference (Δ E * ) ranged 0.45–1.00 after MCs treatment and ranged 1.69–2.00 after 20 launderings. The latent heat was retained 70–89% after rubbing tests and 92–96% after ironing tests using a cover fabric in damp condition.
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المؤلفون: Dong-Il Yoo, Younsook Shin, Kyunghee Son
المصدر: Journal of Applied Polymer Science. 96:2005-2010
مصطلحات موضوعية: Melamine resin, Textile, Materials science, Polymers and Plastics, business.industry, General Chemistry, engineering.material, Surfaces, Coatings and Films, Polyester, Synthetic fiber, Paraffin wax, Materials Chemistry, engineering, Thermal stability, Particle size, Composite material, In situ polymerization, business
الوصف: Melamine–formaldehyde microcapsules containing eicosane were prepared by in situ polymerization. The characterization of the microcapsules, including the particle size and size distribution, morphology, thermal properties, and stability, was carried out. The prepared microcapsules were added to polyester knit fabrics by a conventional pad–dry–cure process to develop thermoregulating textile materials. The morphology, thermal properties, and laundering properties of the treated fabrics were also investigated. The microcapsules were spherical and had melamine–formaldehyde shells containing eicosane. The microcapsules were strong enough to secure capsule stability under stirring in hot water and alkaline solutions. The heat storage capacity increased as the concentration of the microcapsules increased. The thermoregulating fabrics had heat storage capacities of 0.91–4.44 J/g, which depended on the concentration of the microcapsules. The treated fabrics retained 40% of their heat storage capacity after five launderings. © 2005 Wiley Periodicals, Inc. J Appl Polym Sci 96: 2005–2010, 2005
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المؤلفون: Young Sik Kim, Yunkyoung Ha, Dong-il Yoo, Young Kwan Kim, Ji Hyun Seo, Gui Youn Park
المصدر: Extended Abstracts of the 2006 International Conference on Solid State Devices and Materials.
مصطلحات موضوعية: Materials science, chemistry, business.industry, Optoelectronics, chemistry.chemical_element, Nanotechnology, Iridium, business
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::434be081b62ceaabedd3a543c7b4553e
https://doi.org/10.7567/ssdm.2006.d-2-2
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