• The Research Journal of the Costume Culture
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• v.18 no.4
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• pp.755-773
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• 2010

The purpose of the study was to examine concept of subculture and style of subculture by each age and to analyze internal meaning of hairstyle in subculture. The study carried out literary review on the basis of books related to subculture and hairstyle focused on the cradle of subculture and preceding researches of subculture style, and strived to find internal meaning of hairstyle by describing in-depth descriptive methods of qualitative research. And the study limited its range in the hairstyle in style of subculture from 1930s to early 1990s commonly described in subculture related books. As a result, there were natural pattern, cutting pattern, exaggerated pattern, set pattern, braid pattern, color pattern and addition pattern in types of hairstyle in subculture. The hairstyle in subculture symbolizes their internal value and ideology and hairstyle is a kind of language to express identity of subculture.

• Composites Research
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• v.32 no.5
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• pp.249-257
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• 2019

In this paper, the buckling behavior of triaxially braided circular arch with monosymmetric open section subjected to three-point bending was studied experimentally and numerically. First, test specimens were manufactured using vacuum assisted resin transfer molding (VARTM). Then the specimen was tested under three-point bending to determine the ultimate buckling strength. Before performing the numerical analysis, effective material properties of the braided composite were obtained through micro-meso scale analysis virtual testing validated with available test results. Then linear buckling analysis and geometrically non-linear post buckling analysis, established to simulate the test setup, were performed to study the buckling behavior of the composite frame. Analysis results were compared with experimentally obtained ones for verification. The effect of manufacturing defects of tow misalignment, irregular surface and resin rich region, and uncertainties during test setup were studied using numerical models. From the numerical analyses performed it was observed that both manufacturing defect and uncertainties had effect on the buckling behavior and strength.

• Korean Journal of Heritage: History & Science
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• v.50 no.3
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• pp.64-87
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• 2017

Dahoe is a traditional braid in Joseon Dynasty. There are many Dahoe artifacts, which can give us a glimpse of the costume, culture, and life of that era. The study of Dahoe is necessary in various fields, but it is difficult because this manufacturing technique has been passed down from hand to hand. Few studies have been done so far. This research examines the manufacturing technique of KwangDahoe which is passed down by Maedeupjang (Decorative Knotting) and is generally used for knotting and/or tying objects. The main characteristic of TieKwangDahoe, made through the same method as WonDahoe, is the square hole in the middle. It was impossibile to remake the original braid because there is no confirmed number of the strand. Especially it is very difficult to do conservation and restoration on serious degradation state of the fiber. Therefore, it is necessary to analyze the non-destructive manufacturing techniques method for Dahoe and assess their applicability. First, we analyzed the artifacts' manufacturing technique based on the database of the Dahoe's manufacturing technique. In order to do that, we undertook schematization, restoration, morphological analyzation of the Dahoe. And then, X-ray CT scans were performed to improve the reliability of the DB. These results of scanning were interpreted based on the manufacturing technique. The selected Tie-KwangDahoe on the sword for the study are artifacts including artistic value and symbolism in Joseon Dynasty. Based on the analysis of the manufacturing technique, we found that both artifacts were made of 20-strand braid of single cross according to the length-scale measure. It was manufactured using 8-strand on left-right side, 12-strand on front-back side by the braiding manufacturing technique method Finally, this research suggests non-destructive analysis method of Dahoe's manufacturing technique is based on the database and the analysis results. I hope this research can be useful in various professional fields of Dahoe in the future. Moreover, I hope this can be of any help in preserving Korean cultural heritage.

• Transactions of the Korean Society of Automotive Engineers
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• v.17 no.5
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• pp.1-6
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• 2009

The temperature of exhaust gas was raised by increasing of engine movement on developing engine. Thermal of high temperature and pressure reverse in bellows, because of increasing of engine movement and the thermal performance of converter in combustion. As a result, thermal loss is increased and thermal efficiency is decreased rapidly in bellows, it can occur to damage in mechanical structure. In this study, it was necessary to analyze back pressure performance and thermal characteristic on driving condition in exhaust system. It was adapted braid type bellows and straight type exhaust pipe. It was compared with curve type exhaust pipe for lay-out on considering to design of exhaust system. It was necessary to improve thermal characteristic and back pressure performance so that expansion cavity pipe(ECP) was installed between bellows and catalyst convert. Not only decreasing back pressure was solved but also thermal characteristic problems in exhaust pipe because of increasing capacity. According to this study, the basis of data is presented when new exhaust system is designed.

• Journal of the Korean Society of Costume
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• v.29
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• pp.117-126
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• 1996

As the current stage of the fashion begins to follow the styles of the past the study on the past costume is getting more importance and as the methodolgy of the study the accu-rately approached study through the rehabili-tation of the past cosume is more needed than the simple rearrangement of the historical documents. By this methodology this study can be positioned as a re-creation activity. The results of the study are as follows. 1) Style: The general silhouette is the style to emphasize the waist and to widen skirt at the lower part of the body. The front shows hourglass silhouette but the side shows S-line silhouette. The dress is two-piece composed of bodice and skirt. 2) Color and Fabric: The main color is dull powder blue end the sub color is ivory. The dress is made of wool crepe and cotton and partly silk crepe satin and taffeta. 3) Pattern and sewing: The dress is combined with lining and fabrics, The patterns. or overbodice. The skirt is gored skirt. The skirt is gored skirt. The dress has various effect not only to decorate but also to conceal seams support hemlines nd affect the depth and length of front panel. 4) Datail: The braid black velvet ribbon frill and tucks in bodice skirt sleeves front panel collar cuffs are repeatedly used to dec-orate the dress. Finally the 1902-3 day dress has the characteristics of transitional stag in which the chatacteristics of the costume of 1900s and the remnants of the characteristics of the pre-vious costume style and shows the charac-teristics of day dress well in terms of the style color and fabric pattern and sewing and detail.

• Journal of the Korean Society of Costume
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• v.57 no.1 s.110
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• pp.163-175
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• 2007

This study examines 74 pieces of textiles of Daegaya found in the Jeesan-dong Tomb and Saeng-cho Tomb, and analyzes their characteristics and weaving techniques. Dagaya is known to have produced ramie and hemp from bast fibers. The hemp textiles were all woven in plain weave, and the ramie textiles were woven either in plain weave or plain braid. The ramie textiles were slightly more dense compared to the hemp textiles, however, both had average densities between 0.92 to 0.93, showing that they are balanced plain weave textiles. It was also found that S twist threads were used in the production of the hemp and ramie textiles. The dyed textiles on iron remains were found to be the oldest textiles to use dying techniques for patterns. Silk textiles were woven in plain weave, twill weave, and leno weave. All of the silk were made with non-twisted thread. The densities were between 30 to 58.3 and the the density rates were 1.0 to 2.5 for plain weave silk, this showed that varieties of plain weaver created by different densities of warp and well. The average density of cho was $53.4{\times}22.5/cm^2$ the density rate was about 2.40, therefore warp was woven more dense compared to the weft. There were degummed and raw silk used in silk textiles, but most of them were found to be degummed thread.

• Journal of the Korean Society of Manufacturing Process Engineers
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• v.17 no.4
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• pp.32-38
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• 2018

In this study, the one-piece propeller shaft composed of carbon/epoxy was designed and manufactured for 4 wheel drive automobiles that can bear the target torsional torque performance of 3.5kN.m. For the CFRP tube, braiding machine was used to weaving carbon fiber and it was formed the braided yarns with the braid angle ${\pm}45^{\circ}$ and axial yarns to improve strength of the lengthwise direction. The final CFRP tube of propeller shaft was evaluated through the torsional torque test. The CFRP propeller shaft satisfied requirement of the target torsional maximum torque of 3.5kN.m. Also, it was found that the one-piece composite propeller shaft with CFRP tube had 30% weight saving effect compared with a two-piece steel propeller shaft.

• Economic and Environmental Geology
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• v.31 no.5
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• pp.431-446
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• 1998

The calcretes from the Cretaceous Gyeongsang Supergroup in the vicinity of Ulsan city have been examined at five sites (Daedong, Seodong, Ansachon, Deogha, and Mangyangri). In these calcretes, evidences indicating pedogenic origin are recognized. Included are calcite aureoles around detrital grains, pedotubular pores, microstromatactis, circumgranular cracks, fitted structure of adjacent peloids, calcrete ooids, rhizocretions, and calcrete intraclasts. On the basis of calcrete development together with lithofacies, the depositional environments of those deposits are interpreted as lake margin (Daedong deposits), braided to low-sinuosity river (Seodong deposits), braid plain (Ansachon deposits), and meandering river (Deogha and Mangyangri). Stratigraphically, the fluvial deposits of study area show paleoenvironmental change from braided to low-sinuosity river plain under arid climatic condition to meandering river plain under seasonally wet an dry climatic condition. The stratigraphic successions of the Gyeongsang Supergroup of the study area Qacustrine-fluvial-Iacustrine) together with paleoenvironmental change of fluvial deposits suggest that those deposits can be correlated with the Banyaweol-Songnaedong-Geoncheonri formations of the Gyeongsang Supergroup in the western part of the Yangsan Fault.

• Proceedings of the Korea Water Resources Association Conference
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• 2012.05a
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• pp.529-533
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• 2012

본 연구에서는 실내실험을 통하여, 하안침식을 고려한 망상하천에서 저수로의 이동특성을 조사하며, 2중 퓨리에 해석에 의하여 사주의 거동특성을 분석하였다. 실내실험은 평균입경이 1.4 mm이고, 표준편차가 1.35인 균일사로 10 cm 의 두께로 전체가 균등하게 채워진, 길이가 12 m, 넓이 2 m 수로에서 수행하였다. 각 시간별 하도의 지형변화에 대하여 2 중 Fourier 해석에 의한 지배적인 성분, 즉 모드(mode)의 변화를 분석하였다. 여기서 1-1 mode는 교호사주(alternate bars)이고, 1-2 mode와 2-2 mode는 2차 횡방향 모드로서 중앙 사주(central bars)를 나타낸다. 1-3 mode와 2-3 mode는 한 단면에서 횡방향으로 3개의 사주가 형성된 것(triple row bars)를 나타낸다. 초기에는 1-1 mode인 교호사주가 지배적이지만, 시간이 증가함에 따라, 교호사주인 1-1 mode는 감소하고, 한 단면에서 3개의 사주가 형성되는 2-3 mode가 지배적인 것으로 나타났다. 이러한 원인은 시간이 지나면서 사주가 발달하고, 하안침식이 되면서, 하폭이 증가하여 상대적으로 수심이 감소하면서 복렬사주가 발달하기 때문이며, Colombini 등(1987)이 이론적으로 예측한 결과와 잘 일치한다. 한 단면에서 3개의 모드가 나타나는 것은 하상에서 변화를 일으키는데 중요한 역할을 한다. 직선하도에서 사주의 수가 증가하는 것은 교호사주의 강한 비선형으로 상호작용하기 때문이다.

• Journal of Fashion Business
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• v.9 no.5
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• pp.152-167
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• 2005

This study aims to aid hair fashion design for using hair style change by knowing the hair fashion images' characteristics. To accomplish this purpose, posed a questions to capital area university women students from June 3. 2005. to June 23. 2005. The hair fashion images' characteristics are; (1) avant-garde - unique style of every categories, (2) ethnic - korean style of center part, no volume, down chignon, inactivated texture, (3) romantic pretty - girl like cute style of long, wide wave, wide braid, center part or bang, activated texture, using pin or ribon, (4) elegance - graceful style of down point up style having wave, volume and activated texture, (5) sexy - sexual attractive style of long & wide wave or straight with high volume, activated texture(wet feeling hair styles also possible), (6) sophisticate - refined urban style of inactivated textured graduation and layered straight hair, (7) natural - inartificial style of no volume, inactivated long straight and binding hair, (8) sporty - activated style of activated and inactivated textured short hair.