• Title/Summary/Keyword: Weave

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A Study of the Fabrics Used for the Official Hats in Baekje Dynasty (백제 관모에 사용된 직물 연구)

  • Park, Yoon-Mee
    • Journal of the Korean Society of Costume
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    • v.59 no.3
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    • pp.82-95
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    • 2009
  • The kind and the use of the fabrics for crown manufacture in the Baekje period has been studied by characterizing the imprinted fabrics on the crowns and the diadem ornaments from the old tomb. The contact region with the skin inside of the crown and the region between the bark of white birch and the gilt bronze openwork plates contained fabrics. The fabrics used in the gilt-bronze crown were all plain weave silk except that of Yongwonri tomb where loosely woven thin tabby was used. There have been 4-types of iron framed diadem of the Baekje, which comprise the inverted triangle-shaped diadem only with iron frame, the diadem with gold plate ornament in the iron frame, the diadem decorated with mica plate and gold plate, and the diadem with silver ornament in the iron frame. The fabrics used in the triangle shaped iron frame diadem include plain weave silk, irregular plain woven silk, thin tabby, complex silk gauze, twill weave on plain ground, and warp-faced compound weave. The iron frames were wrapped with the fabrics from one layer up to three layers, and the iron diadem was covered with one later of loosely woven textile such as irregular plain woven silk, thin tabby, and complex silk gauze. But in case of decorating the iron diadem with gold Plate ornaments, multiple layers of fabric were used to sustain the weight of the ornaments. The fabrics in the iron diadem frame were sewed with running stitch, overedge stitch or hemming stitch, diagonal hemming stitch, half back stitch), and overcast stitch.

Analysis of Image Similarity Index of Woven Fabrics and Virtual Fabrics - Application of Textile Design CAD System and Shuttle Loom - (직물과 가상소재의 화상 유사성 분석 연구 - 수직기 및 텍스타일 CAD시스템 활용 -)

  • Yoon, Jung-Won;Kim, Jong-Jun
    • Fashion & Textile Research Journal
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    • v.15 no.6
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    • pp.1010-1017
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    • 2013
  • Current global textiles and fashion industries have gradually shifted focus to high value-added, high sensibility, and multi-functional products based on new human-friendliness and sustainable growth technologies. Textile design CAD systems have been developed in conjunction with computer hardware and software sector advances. This study compares the patterns or images of actual woven fabrics and virtual fabrics prepared with a textile design CAD system. In this study, several weave structures (such as fancy yarn weave and patterns) were prepared with a shuttle loom. The woven textile images were taken using a CCD camera. The same weave structure data and yarn data were fed into a textile design CAD system in order to simulate fabric images as similarly as possible. Similarity Index analysis methods allowed for an analysis of the index between the actual fabric specimen and the simulated image of the corresponding fabric. The results showed that repeated small pattern weaves provide superior similarity index values than those of a fancy yarn weave that indicate some irregularities due to fancy yarn attributes. A Complex Wavelet Structural Similarity(CW-SSIM) index resulted in a better index than other methods such as Multi-Scale(MS) SSIM, and Feature Similarity(FS) SSIM, across fabric specimen images. A correlation analysis of the similarity index based on an image analysis and a similarity evaluation by panel members was also implemented.

Mechanical Properties Prediction by Geometric Modeling of Plain Weave Composites (평직 복합재료의 기하학적 모델링을 통한 기계적 물성 예측)

  • Kim, Myung-jun;Park, Jung-Sun
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.44 no.11
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    • pp.941-948
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    • 2016
  • Textile composite materials have been widely applied in aerospace structures due to their various advantages such as high specific stiffnesses and strengths, better out-of-plane performances, impact and delamination resistances, and net shape fabrications. In this paper, a modified geometric model of repeating unit cell (RUC) is suggested based on the Naik's model for 2D plain weave textile composites. The RUC geometry is defined by various parameters. The proposed model considers another parameter which is a gap length between adjacent yarns. The effective stiffnesses are predicted by using the yarn slicing technique and stress averaging technique based on iso-strain assumption. And the stiffnesses of RUC are evaluated by adjusting the gap ratio and verified by comparing with Naik's model and experimental data for 2D plain weave composite specimens.

Assessment of Subjective Sensation and Purchasing Preferences for Casual Shirt Fabrics (캐주얼 셔츠소재에 대한 주관적 감각과 구매 선호도 평가)

  • Choi, Jong-Myoung;Kweon, Soo-Ae
    • Korean Journal of Human Ecology
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    • v.15 no.3
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    • pp.397-404
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    • 2006
  • The purpose of this study is to analyze the subjective sensations and preference for spring/fall casual cotton shirt fabrics, and to assist in developing shirt fabrics that offer maximum comfort in wearing sensation. The subjects of this study were male and female college students who assessed the tactile sensation of seven types of spring/fall shirt fabrics available on the market: plain weave and rib weave made of cotton and that of cotton mixed fabrics. The subjects were university students between the ages of 20 to 23, who were residing in the city of Cheongju, Korea. The questionnaires related to the fabrics hand were evaluated using a nine point bi-polar scale of 9 descriptive terms. Mean, t-test, F-test and $X^2$ were used for data analysis. The fabric hand evaluation on the seven types of shirts showed a significant difference in all of the 9 descriptive terms. There were partially significant differences in the subjective sensations according to fabric characteristics regarding shirt fabrics. As regards the difference in fabric hand according to gender, female students responded with more receptiveness and sensitivity than male students in the category of woven fabric evaluation. In particular, female students responded with more sensitivity to the sensation of dense and wrinkle sensations. There were significant differences in the purchase preference according to gender regarding casual shirt fabrics. Plain weave fabrics made of cotton was most preferred among male students, whereas rib weave fabrics made of cotton/polyester was most preferred among female students.

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Prediction of Effective Properties of Laminated Plain Weave Textile Composites (적층각을 가지는 평직복합재료 적층판의 등가물성치 예측)

  • U,Gyeong-Sik;Seo,Yeong-Uk
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.31 no.10
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    • pp.10-20
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    • 2003
  • In this study, the effective properties were numerically calculated for laminated plain weave textile composites with arbitrary s tacking orientation angles. A single-field macroelement with modified sub-domain integration was used in the analysis to reduce computer resource requirement while efficiently accounting for the internal microstructure. A sample calculation procedure based on the Monte Carlo method was employed to consider the random shift between the layers. Results showed that a significant deviation occurred when the orientation angles were near 0 deg for extensional modulus and Poisson's ratio and 45 deg for the shear modulus. It was also found that the average properties calculated by the 2-layer numerical specimen had large differences compared to the CLT results, which indicated that a caution must be needed when designig of thin plain weave composite structures.

Analysis of Network Security Policy Enforcement in Container Environments (컨테이너 환경에서의 네트워크 보안 정책 집행 분석)

  • Bom Kim;Seungsoo Lee
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.33 no.6
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    • pp.961-973
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    • 2023
  • With the changes in the modern computing landscape, securing containerized workloads and addressing the complexities of container networking have become critical issues. In particular, the complexity of network policy settings and the lack of cloud security architecture cause various security issues. This paper focuses on the importance of network security and efficiency in containerized environments, and analyzes the security features and performance of various container network interface plugins. In particular, the features and functions of Cilium, Calico, Weave Net, and Kube-router were compared and evaluated, and the Layer 3/4 and Layer 7 network policies and performance features provided by each plugin were analyzed. We found that Cilium and Calico provide a wide range of security features, including Layer 7 protocols, while Weave Net and Kube-router focus on Layer 3/4. We also found a decrease in throughput when applying Layer 3/4 policies and an increase in latency due to complex processing when applying Layer 7 policies. Through this analysis, we expect to improve our understanding of network policy and security configuration and contribute to building a safer and more efficient container networking environment in the future.

Effects of Microstructural Arrangement on the Stress and Failure Behavior for Satin Weave. Composites (주자직 복합재료 미세구조의 응력 및 파괴해석)

  • 우경식;서영욱
    • Journal of the Computational Structural Engineering Institute of Korea
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    • v.14 no.4
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    • pp.455-467
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    • 2001
  • In this study, the stacking phase shift effect on the effective property and stress distribution was investigated for 8-harness satin weave textile composites under uni-axial tension. Textile configurations with varied phase shifts were modeled by unit cells and repeating boundary conditions were applied at the outer periodic surfaces. The effective property and stress were calculated by the unit cell analysis using macro-element to reduce the computational resource. It was found that stresses were dependent on the variation of tow arrangement of adjacent layers. The in-phase and the shifted configurations showed large differences in the stress distribution pattern. The stress level was very high in the resin region and the distribution of the maximum stresses was widely scattered.

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A Study on the Preference to the Textiles for Jackets of College Students (재킷용 의복소재에 대한 대학생의 선호도 조사연구)

  • Kim Heesook;Na Mihee
    • Journal of the Korean Home Economics Association
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    • v.42 no.10 s.200
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    • pp.105-113
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    • 2004
  • This research was designed to investigate the preferred textiles for the jackets of college students. 105 subjects that majored in fashion design were surveyed. The subjects selected three favorite materials, according to the seasons, among 120 samples presented in a swatch book and their frequency of choice was tallied. The extent of the subjects' preference was compared by season and gender The results of this study were as follows: 1. College students preferred dark Grayish Brown plain variation wool Crossbred foremost as a textile for the spring and fan season. 2. White plain cotton Plisse was the most preferred material for summer. 3. Olive Gray cotton Corduroy was the most preferred textile for winter. 4. For thickness and weight, the textiles chosen for winter were thicker and heavier than those chosen for other seasons. 5. For fiber content, natural fiber such as wool were preferred for all seasons. 6. For the type of fabrics weave, a plain variation weave was preferred for spring and fall, twill was preferred for winter and plain weave was preferred for summer. 7. Collage students preferred gray and brown tones for the spring, fall and winter season. For color characteristics, solid fabrics were generally preferred and check patterns were especially preferred for the winter season. 8. Girl students generally preferred lighter and thinner fabrics than those chosen by boys.

A Research on the Preference to Textiles for Slacks of College Students (슬랙스용 소재에 대한 대학생의 선호도 조사연구)

  • Kim, Hee-Sook;Na, Mi-Hee
    • Korean Journal of Human Ecology
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    • v.11 no.4
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    • pp.381-389
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    • 2002
  • This research was designed to investigate the preference to textiles for slacks of college students. 105 subjects majored in fashion design were surveyed. Subjects selected three favorite materials among 120 samples presented in swatch book and weighted frequency and percentage were added by order. The extent of preference was compared by season and sex. The results of this study were as follows: 1. College students preferred twill cotton Drill foremost as a textile for spring and fall season. 2. Plain linen Crash was the most preferred material for summer. 3. Cotton Corduroy was the most preferred textile for winter. 4. In thickness and weight, textiles for winter were thicker and heavier than those of other seasons. 5. In fiber content, natural fiber such as wool were preferred for all seasons. 6. In weave of textiles, twill weave fabric was preferred for spring fall and winter season, and plain weave for summer. 7. College students preferred plain texture materials foremost and navy blue and black color was preferred for textiles for slacks. 8. Girl students preferred cotton fabrics and boys preferred wool fabric for slacks. Also, girls generally preferred thinner fabrics than those of boys.

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A Study on the Characteristics of the Fabric inside the Vairochana Buddhas in Haeinsa Temple (해인사 비로자나불복장 섬유류 유물에 관한 고찰)

  • Park, Yoon-Mee
    • Journal of the Korean Society of Costume
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    • v.64 no.5
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    • pp.141-153
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    • 2014
  • Buddhist articles from various periods in the Vairochana Buddha statues, which are currently housed in the Haeinsa Temple's Supreme Buddha Hall and Beopbojeon Hall. This research concentrates on the artifacts found inside the storage boxes, which was placed inside the Buddha statues in 1490. A total of 24 pieces of fabric articles found inside the Virochana Buddha in Beopbojeon and 213 pieces from the Supreme Buddha Hall were examined. The types of textiles are as follows: bast fiber, silk, cotton, and union cloth. Bast fiber consisted of ramie and hemp. For silk, tabby woven with plain weave, spun silk, and thin tabby were found. And twill damask made with twill, Sa and Ra with the leno weave, and satin damask made with the satin weave were also found. Also the two Jeogoris and three Jogakbos were found, the one Jeogori was made with Hwan. The Buddhist articles in the Vairochana Buddha of Haeinsa have been preserved well and its colors have remained virtually the same from the time of its original placement. Therefore these articles are very important in understanding the textile characteristics, weaving techniques, dying techniques as well as traditional colors.