• Conservation and Restoration of Cultural Heritage
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• v.1 no.1
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• pp.3-8
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• 2012

Chemical compositions and lead isotope ratios for four glass bead samples of Seokga-tap were analyzed and the results were organized. Among 4 glass beads found in the Seokga-tap, 3 pieces were lead glass. Manufacturing method was to firstly grind pebbles finely and mix lead ore to be melt at $740{\sim}760^{\circ}C$. The mixed ratio of silica and lead was 3:7. Moreover, The evaluation on the lead isotope ratio indicated that two lead glass pieces used lead ore from northern Korea. One piece has the direction of southern Korea lead ore, but it requires a further review. One glass bead of Seokga-tap was brown and it was potash lead glass ($K_2O-PbO-SiO_2$) System. The mixed ratio was approximately 50:10:40 for silica, natural saltpeter, and lead, respectively. Lead isotope ratio data fell within the lead ore from northern China. Therefore, it was concluded that potash lead glass found in the Seokga-tap was produced in northern area of China at the end of $10^{th}$ century and transferred to the Seokga-tap.

• Journal of Acupuncture Research
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• v.20 no.5
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• pp.151-158
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• 2003

Objective: There have not been so many study about the quality of acupuncture needle tip. In order to ensure safe acupuncture treatment, the quality of needle tip is essential. Therefore we investigated the current condition of the tip of the acupuncture needles in Korea. Methods: We have selected the needles that made by 8 companies in Korea, and selected 50 pieces from 1000 pieces each company by randomized methods. and observed the tip of each needle using a scanning electron microscope at ${\times}800$ magnification. Results & Discussion: We found that needles had several defects such as scratch marks on the surface, metallic scuff, lumps and irregularities of the needle tips, stubbed or malformed tips, tips of point off-center, peeled off coated tips. There was much difference on the quality of needle among the manufacturer, and some needles seem to need to do- thorough quality control. It is necessary to intensify quality management and a concentrated control on manufacturing process of acupuncture needles.

• Steel and Composite Structures
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• v.34 no.3
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• pp.347-359
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• 2020

The objective of this study is to experimentally scrutinize the axial performance of built-up concrete filled steel tube (CFT) columns composed of steel plates. In this case, the main parameters cross section types, compressive strength of filled concrete, and the effect of welding lines. Welded built-up steel box columns are fabricated by connecting two pieces of cold-formed U-shaped or four pieces of L-shaped thin steel plates with continuous penetration groove welding line located at mid-depth of stub column section. Furthermore, traditional square steel box sections with no welding lines are investigated for the comparison of axial behavior between the generic and build-up cross sections. Accordingly, 20 stub columns with thickness and height of 2 and 300 mm have been manufactured. As a result, welding lines in built-up specimens act as stiffeners because have higher strength and thickness in comparison to the plates. Subsequently, by increasing the welding lines, the load bearing capacity of stub columns has been increased in comparison to the traditional series. Furthermore, for specimens with the same confinement steel tubes and concrete core, increment of B/t ratio has reduced the ductility and axial strength.

• Journal of the Korean Society of Clothing and Textiles
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• v.42 no.4
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• pp.689-707
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• 2018

This study reviewed the differences among Onggis made in Jeju and other areas, developed creative textile designs and cultural products, and conducted the consumer evaluation of developed products. First, the 1,063 photos of Onggis made before the first part of the 20th century were collected and the unique differences of Jeju Onggis were confirmed through the observation of collected photos. Second, based on the uniqueness of Jeju Onggis, the eight pieces of Jeju Onggis were selected from the photos and used as pattern design motifs. Nine basic patterns were drawn and ten textile designs were created using the basic patterns. Third, the 16 pieces of textile products were made with cotton fabrics on which the textile designs were printed. Four mugs and four tumblers with printed patterns were also made. Finally, 64 students evaluated the developed products using a 7-point scale. As a result, folksy atmosphere, uniqueness, usage as a Jeju souvenir and at local restaurants, and the role of fostering concern for Jeju Onggi were highly evaluated but aesthetics was rated relatively low. Most of the developed products were highly preferred and recommended as Jeju souvenirs or for local restaurants.

• Journal of the Korean Home Economics Association
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• v.29 no.2
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• pp.1-15
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• 1991

The purpose of this study was to understand the diversity and speciality of Aztec dress which has not been well known, and to overcome ethnocentrism in clothing perceptions. From 15 century to early 16 century, the Aztec empire based on the unique view of the world, most flourished in Mesoamerica. Ritualistic and official side of Aztec life was reflected well on dress. Most Aztec garments consisted of unsewn pieces of cloth, draped on the body as loincloth, mantle and wraparound skirt. Slightly more complicated garments such as women's blouses(huipils) and men's simple jackets were created by sewing together two or more pieces of material. In the sharply stratified world of Aztec, strict sumptuary laws controlled dress. The garments of lower classes were made of maguey or yucca fiber, and only the upper classes were allowed to wear cotton clothing. In addition to material, color, elaborateness and even manner of tieing the mantle were carefully controlled by government edict. As the Aztec empire expanded and became wealthier, the sumptuary laws could not actually dictate what people wore everyday but rather provided a set of rules governing clothing for ceremonial occasions. Aztec's warrior costumes, consisted of headdress, towering back devices, feather garments, were sufficient to suggest the theatrical grandeur of what must have been one of the most magnificiently attired armies ever assembled.

• Journal of the Korean Society of Costume
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• v.51 no.4
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• pp.81-95
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• 2001

The purpose of this study is to categorize the typs of fabrics and to analyze weaving method and pattern design on the silk fabrics from Jang-Gi Jung s tomb. The conclusions of this research are as follows. 1) Among the 32 pieces of excavated clothes, 90% of them were made of silk fabric and 65% used patterned silk. I would assume, therefore, that the tomb was owned by a person of higher society who could afford the best clothes of the time. 2) The weaving methods of silk include tabby, twill damask with different direction (2/1 warp faced ground, 1/3$\cdot$1/4 weft faced pathern), self-patterned satin damask (4/1 warp faces ground, 1/4 weft faced pattern), and brocaded satin damask. 3) The arrangement of the motifs and the kinds of patterns on these silk fabric can be divided into two categories: first group is allover arrangement of peony or lotus and second group is the scattered arrangement of omen of luck. 4) Two pieces of fabric was stamped and the letters of the stamp make me to think about the possibility that the fabrics are from China. But to make this paint clear more relics of this kind should be excavated so that further research can be done.

• Journal of Engineering Education Research
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• v.18 no.4
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• pp.45-56
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• 2015

The goal of this study was to analyze the research trends of engineering education in elementary and secondary education. To accomplish this goal, this study analyzed the journal papers by 'published year', 'research topic', 'research subject', 'research method' and 'related school subject'. Followings are the results of this study. First, regarding the published year, the studies related to the elementary and secondary school level engineering education had been conducted 1 to 3 pieces intermittently from 1995 to 2009. And the number of studies are more than 5 pieces after 2010. Second, regarding the research topic, the number of study followed by 'investigation for current status', 'tendency analysis', 'development of teaching method or model', 'verification of teaching method/models' effect'. Third, regarding the research subject, the number of study followed by 'student', 'literature', 'professor', 'teacher'. Fourth, regarding the research method, the number of study followed by 'survey research' and 'literature research', 'qualitative research', 'experimental research' and 'integrated research'. Fifth, regarding the related subject, the number of study followed by 'science', 'technology', 'mathematics', 'practical arts'. Based on the results of this study, there are the needs for further studies to establish theoretical foundation on the engineering content elements in elementary and secondary school level, analyze on related variables and effects, develop engineering assessment instrument, use a variety of research methods, and conduct study on the applications of engineering in math subject.

• Journal of the Korea Furniture Society
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• v.21 no.1
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• pp.83-96
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• 2010

This study explores terminology for legs and feet in the traditional Korean and Western furniture. Pieces of traditional Korean and Western furniture have been largely made of the eco-friendly material, natural wood, and thus important in the latest trends of wellness, such as LOHAS (Lifestyles of Health and Sustainability) and a green period. Legs in traditional Korean furniture appeared in dinging tables, and the feet in wardrobes. The limited use of legs and feet seems to be influenced by floor-oriented lifestyles of Korean ancestors. In contrast, most pieces of Western furniture, which is from the chair and bed culture, have various styles of foot and leg. While th two groups are from different backgrounds, both of them have developed various legs and feet applying natural subjects such as animals and plants to each of their furniture including wardrobes, cabinets, dining tables, chairs, consoles, etc. It is also found that the traditional Korean furniture can be influenced by a traditional Chinese chair foot called Neabunmajae, which describes inner horse foot. Neabunmajae was known in Korean furniture legs and feet, but the terminology has not been known. The study suggests that terms which appear in traditional furniture but are unknown should be studied more.

• Journal of the Korean Society of Clothing and Textiles
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• v.36 no.5
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• pp.573-582
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• 2012

This work is to develop a T-shirt by adopting a unique cloud pattern (a good auspicious sign as design material) from traditional native Korean patterns for application to various cultural products and textile design cloth patterns; subsequently, a T-shirt design was processed based on this. As a research method, computer design programs Adobe Illustrator CS3 and Adobe Photoshop CS3 were used along with a literature examination as part of motive for design development and pattern realization. Three basic motives were selected as a new formative image in this work, utilizing graphical elements such as abridgement and simplicity of pattern, where flower-shaped cloud pattern, uprising cloud pattern, and 卍-shaped or swastika-shaped pattern of traditional cloud patterns were selected. Each motive diverged into two motives via the shape transformation and the application of different colors. The newly developed basic motive was further processed into a combination of one-time repeat pattern, stripe pattern, and application pattern with mixed cloud motives (that were previously developed), which altogether turned out to be 36 pieces of textile design. In addition, with newly developed motive designs and textile designs, a total of 12 shirt designs for 4 pieces were developed for these three each. The shirt design was developed into a shirt blouse, sleeveless T-shirt, half-sleeve T-shirt, and sports T-shirt among others in order to fit various uses and purposes.

• Journal of Fashion Business
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• v.20 no.3
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• pp.68-88
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• 2016

The purpose of this research is to investigate the characteristics of Chinese minority women's waistbands, in view of their lifestyle, costume, and symbolism. The research method combined literature research and case study. In the case study, this research targeted the secondary data of a total of 215 pieces from books, articles and the internet. A total of 5 pieces per each representative women's waistband of 43 minorities, excluding those who did not wear a waistband, we collected. We then quantitatively analyzed the form and decoration of the waistbands. As a result of considering the form, the waistbands of Chinese minorities per region were closely related to the costumes, mainly showing high similarity in respect to color and decoration. Moreover, the decorations of the waistbands were most often made from their own area's special products, such as silver, bronze, cotton, and linen, amongst other. The form and decoration of the Chinese minority women's waistbands were all connected with functionality, aesthetic impression, and symbolism, which can be said to be an important part of understanding Chinese minority costume culture. This research contributes to the development and preservation of Chinese minorities' costume culture by considering and analyzing unique costume factors besides giving excellent fashion design ideas for contemporary fashion.