• Title/Summary/Keyword: Folding

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Development of men's jacket design applying nature's folding characteristics (자연의 주름 특성을 활용한 남성 재킷 디자인)

  • Kim, Hee Jung;Lee, Youn Mee;Lee, Younhee
    • The Research Journal of the Costume Culture
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    • v.28 no.6
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    • pp.787-800
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    • 2020

  • This study aims to derive the criteria of folding techniques and their characteristics through analysis of literature and previous studies. This will be realized by performing a case study on male fashion design and folding. It will propose diverse directions and data for male fashion design, by making men's jackets using a folding technique. The concept and terms of folding were clarified through examination of existing literature and previous studies. Specifically, four pieces were created with motifs of the four seasons. Among the types of pleats expressed in the works, composition pleats include double ruffles, gathers, and draperies, while processed ones include box pleats, knife pleats, and accordion pleats. This study expresses continuity, fluidity, scalability, and ambiguity through the use of such pleats. The results of the production are as follows. First, in terms of the continuous use of regular and repetitive pleats, a possibility of rich pleats was confirmed because they varied depending on the gap between the pleat and target material. Second, in liquid but irregular pleats, diverse moods were created by the pleat movement. The overlapping of repeated pleats expresses diverse spaces and shapes in a 3D extended silhouette. Third, in pleat classification, ambiguity was confirmed with the use of continuous accordion pleats in the printed gradation fabric. It is anticipated that more diverse and creative designs could be created using more extended techniques in future studies.

  • https://doi.org/10.29049/rjcc.2020.28.6.787 인용 PDF KSCI

Relationship between Tensile Characteristics and Fatigue Failure by Folding or Bending in Cu Foil on Flexible Substrate (유연성 기판에 사용되는 전해 동박의 절곡 및 굴곡 피로 파괴와 인장 특성과의 관계)

  • Kim, Byoung-Joon;Jeong, Myeong-Hyeok;Hwang, Sung-Hwan;Lee, Ho-Young;Lee, Sung-Won;Cbun, Ki-Do;Park, Young-Bae;Joo, Young-Cbang
    • Journal of the Microelectronics and Packaging Society
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    • v.18 no.1
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    • pp.55-59
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    • 2011

  • Folding endurance, bending fatigue and monotonic tensile tests of 4 kinds of Cu foil on flexible substrate was performed to investigate the relationship between folding or bending endurances and tensile characteristics. The repeated 5.3 or 2.0% strain was applied to Cu foil in folding endurance test or bending fatigue test while monitoring the electrical resistance. Elastic modulus, yield strength, ultimate tensile strength, ductility, and toughness were obtained by monotonic tensile test on the same samples. The Cu foil with higher toughness and ductility showed higher reliabilities in folding or bending fatigue. However, elastic modulus and yield strength did not show any relationship with folding and bending reliability. This is because the failures of Cu foil by folding or bending fatigue were closely related to the fracture energy of metal.

  • https://doi.org/10.6117/kmeps.2011.18.1.055 인용 PDF KSCI

OPTICAL PROPERTIES AND TOPOLOGICAL CONFIGURATION OF CAUSTICS OF MICRO GRAVITATIONAL LENSES

  • Chang, Kyong-Ae
    • Journal of The Korean Astronomical Society
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    • v.24 no.1
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    • pp.1-12
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    • 1991

  • The mathematical properties of gravitational lens equations are examined in the frame work of gravitational micro-lensing effects. The caustics of the gravitational lens may be defined in terms of "cusp" and "folding" in general. In some cases for overfocussing, however, the critical curves (caustics) have no cusp and no folding. If the observer is in the overfocussed region, he may not see any lensed image.

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