• Journal of the Korean Society of Costume
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• v.58 no.10
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• pp.164-172
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• 2008

Soochonri tombs are assumed to be of the Baekje Kingdom in the early 5th century. We have examined 12 artifacts and 24 textiles in the four tombs. Along with hemp textiles, silk and embroidery threads were found In the Soochonri tombs. Within the hemp textiles both hemp and ramie were made using s-twist threads and the thread count distribution is calculated to be $8.5{\sim}15.5/cm^2$. Taffeta, one of the silk, can be categorized in to four types. First, the plain woven silk was made with warp and weft of the same thickness. The rates of thread count are also similar. Secondly the warp and weft are of the same thickness but has more spaces between threads. Third, the type of warp and weft is different in thickness, the thicker thread woven in the same direction. Lastly, a textile was woven with spaces the same as the width of the reed mark in every two warps. There were five compound weave found. Among them one was made with non-twisted thread for warp and s-twist thread for weft. One plain braiding with apparent spaces between threads were found. All three of the twining were made with wefts thicker than warps, barely showing the warps as a result. Textiles of the Soochonri tombs are the oldest of the Baekje Kingdom studied by far and therefore important artifacts of the Baekje Kingdom. These textiles are similar to those found in the King Muryeong's Tomb and tombs of Gaya and Shilla.

• Journal of the Korean Society of Costume
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• v.65 no.4
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• pp.1-18
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• 2015

The subject of study is about the illustrations of the round collar Po(袍類) in the Akhak-gwebeom(樂學軌範) which was published in 1493. These illustrations are painted records of what musicians and dancers in the palace were wearing during performances. While each illustration of the Po is similar in that they all have round collars, each has a different name Sam(衫), Ui(衣), Dallyeong(團領) and formative characteristics, and these features were analyze in the study. Sam refers to the Gongbok(公服) as it has long and big sized sleeves, Ui is the word used to represent the basic unit of outerwear, and Dallyeong is believed to refer to the Sibok(時服) and Sangbok(常服). In the formative aspects, Sam's auxiliary sleeve is one of the ways wearing the sleeve of innerwear shown outward and it's assumed to have been produced for visually matching the formal look as well as the convenience free to use of hands. The Mu of Dan-ui(丹衣) is less than the number of the excavated artifacts, it produced in a relatively simplified form. Also, illustration of Dallyeong corresponds to the artifacts and configuration of the 15th to 16th centuries, the costume culture of that time seems to be reflected specifically. While Hyungbae(胸背) used in the form of rectangles and circles such as petals. it tried to represent the country at the official event by borrowing the upper class in the costume that musicians and dancers wear, also showed the rank and social status symbolically by having the differences in the shape and pattern. While the costume culture at the time is reflected, it can be found that the objective of raising the country's dignity is implied by transforming the detailed structure for the practicality, borrowing the costume elements of the high social status and transformed them.

• Conservation Science in Museum
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• v.22
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• pp.1-14
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• 2019

The excavation of the south mound of Hwangnamdaechong Tomb in Gyeongju has yielded diverse types of shell artifacts. Among the them, this paper investigated fragments of shell ornaments with gilt-bronze frames, the use of which has not been identified. It was revealed that the artifacts are in fact nautilus cups, which had never been found previously in excavations in Korea. A nautilus is a species marine mollusk known to be the closest to prehistoric ammonites. It has brown stripes on the surface of the shell and septa inside, and a siphuncle penetrating to the center of the septa. It is known that nautilus cups were made and used in China, but only three examples have thus far been identified. These surviving cups have metal ornaments and are dated to the Western and Eastern Jin periods of China. No nautilus cups have been found in Japan, and the shell ornaments investigated in this study were determined to be the first nautilus cups ever found in Korea. Nautilus cups are mentioned in ancient documents and literature, including in poems by the Tang Dynasty poet Li Bai and in Joseon-period documents. This paper presents the biological characteristics of nautili, cases of excavation of nautilus cups outside Korea, and findings from the basic research of the nautilus cup from Hwangnamdaechong Tomb.

• 보존과학연구
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• s.32
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• pp.155-170
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• 2011

This study intended to identify the ratio of alloy, metallographic examination and hardness on the bronze mirrors excavated in Korea and made the distribution chart of the main components according to each artifact and then tried to compare the ratio of artifacts with that of 鑑燧之齊of Zhouli Kaogongji(周禮, 考工記). Through this research, the components distribution of bronze covered a wide rage but it can be divided into 2~3 groups. When it is categorized into 3 groups, one is the bronze mirror with 70-80% of copper, 15-20% of tin and less than 5% of lead. Another is the bronze mirror with 20%-30% of tin which gives the white luster on metal and the high hardness. The other is the bronze mirror with 60-70% of copper and 15-20% of tin but it has more than 10-15% of lead which causes less luster and the low hardness. It contains less tin than 33%(50%) of tin from 鑑燧之齊 according to the old record Zhouli Kaogongji(周禮, 考工記) of Zhou Dynasty. In Korea the bronze mirror with tin of 鑑燧之齊was never found yet except the case of artifacts analyzed by non-destructive analysis.

• Korean Journal of Heritage: History & Science
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• v.52 no.3
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• pp.240-251
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• 2019

This study examined the manufacturing technology used for the flat iron axes excavated from Ulsan Hadae. Their microstructures were analyzed using metallurgical methods. In addition, a variety of manufacturing technologies were examined and compared using existing research materials on flat iron axes. As a result of analyzing ten flat iron axes, which were excavated in the order that they were laid out in a row in one of the wooden coffin tombs at Ulsan Hadae, Tomb No. 44, it was possible to classify the flat iron axe manufacturing technology and system into three types: 'pure iron - shape processing', 'pure iron - shape processing - carburizing', and 'pure iron - shape processing - carburizing - decarburizing.' All of the flat iron axes were produced by forging, and most of them were made by beating the pure iron into their shapes. In particular, a number of the flat iron axes were reinforced through a carburizing process after shaping the iron. This appears as steel products forming the basis of the steel industry at the time were commonly used as an intermediary material or currency. On the other hand, it was commonly found in all samples that the hardening was not performed after shaping or carburizing. Since the microstructure of the flat iron axes made of pure iron contained a large number of impure inclusions and the result of analyzing the components of the non-metal inclusions showed characteristics of slag which contains a mixture of glass phase and wustite, it is possible that low-temperature reduction was used in the refining process.

• Korean Journal of Heritage: History & Science
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• v.50 no.2
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• pp.4-25
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• 2017

The Hoeamsa Temple of Yangju City was established at least during the late Korea Dynasty. This temple was rebuilt several times with the support of the royal family from the late Korea Dynasty to the early Joseon Dynasty. It was continually rebuilt in association with JiGong monk, HyeKeun monk, and MuHak monk. Hoeamsa temple was leading the Buddhist culture as a Buddhist center of the Joseon Dynasty . It was destroyed in the late Joseon Period. This site has been excavated several times since 1997. Various roofing tiles were unearthed. Of these tiles the edge of eaves are the artifacts showing the best features of this era. In this temple site has been excavated a variety of Sanskrit roof tiles. These tiles were made using superior technique. On the roof tiles are engraved Sanskrit mantras with a variety of 1 to 9 words. The jeongbeopkkye mantra(oṃ raṃ) and six-word mantra(oṃ ma ṇi pa dme hūṃ) were discovered the most. These mantras were believe to expel several evils from the Buddhist temple. It must have been that the six-word mantra culture became prevalent and provided a turning point in the history of Korean Buddhism. We can clearly know when some of the Sanskrit roof tiles were first manufactured. These roof tiles are the absolute standard of the other Sanskrit roof tiles excavated from different Buddhist temples. The master craftsmen must have been very skilled, understood the mantra very well, and had deep faith in the Sanskrit mantra. Hoeamsa Temple is a milestone in studying the Sanskrit roof tiles. More studies on various aspects are expected to be followed.

• Korean Journal of Heritage: History & Science
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• v.50 no.1
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• pp.4-17
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• 2017

In this research, the chemical composition of the iron artifacts from the late 6th-century to early 7thcentury Baekje remains in Gwanbuk-ri, Buyeo, specifically of the nine iron artifacts including slags, furnace walls and ingot iron excavated in the District "Na", were examined by observing their chemical compounds and microstructures. As a result, GB1 and GB6 were determined to be proto-reduction lumps whereas GB2, GB3, GB4 and GB5 were determined to be tempered slags, respectively. Also, he furnace wall GB7 were containing mullite and cristobalite, which are high temperature index minerals, The extrusion temperature was found out to be about $1200{\sim}1300^{\circ}C$, and it is most likely that the smelting temperature in the furnace was in that temperature range. GB8 ingot iron was determined to be a forged ironware. This ingot iron was an intermediary product for making ironware and its nonmetallic inclusions displayed similar microstructure and contents compared to the forged iron. Because of the existence of proto-reduction lumps and forged iron, the iron making facility located in District "Na" most likely had a small-scale iron making facility that handled iron bloom smelting and refining processes.

• Journal of Conservation Science
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• v.37 no.2
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• pp.179-189
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• 2021

In this study, the research objects are gilt plated silver-iron nails excavated from the west of the tombs in Neungsan-ri, Buyeo. A gilt plated silver-iron nail was fabricated by combining silver and iron via heating and then gilding amalgam on top of this combination, demonstrating that this ancient artifact that can be replicated using current technology. Since the metal (Au, Ag) surface of these gilt plated artifacts are covered with iron oxide, which slips into the cracks and scratches of the artifacts as well, desalination is essential. Based on the results of the preliminary experiment, the research objects were classified into grades A, B, and C, according to the degree of corrosion and then desalinated using an alkali solution (NaOH, Sodium Sesquicarbonate of 0.1 M) at 60℃. The results demonstrate that the more serious is the degree of corrosion, the more is the amount of Cl^- detected. Further, more Cl^- was released when NaOH was used than when sodium sesquicarbonate was used, for all grades except Grade A. Furthermore, the more serious is the degree of corrosion, the longer is the desalination period and the reaction with NaOH for all grades except Grade A. A comparison of the Fe composition of the surface before and after desalination shows that Fe composition is the use of NaOH resulted in a smaller increase compared with the use of sodium sesquicarbonate, for all grades except Grade B. However, four of the nails were damaged owing to NaOH (Grade B 3ea, Grade C 1ea) during desalination. Thus, Cl^- ions are more stably released when sodium sesquicarbonate is used than when NaOH is used.

• The Research Journal of the Costume Culture
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• v.16 no.5
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• pp.937-954
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• 2008

The Gollyongpo was worn by the King and the Crown Prince in Joseon dynasty as an ordinary wear. The research on the Gollyongpo is focused on the historic record of Joseon dynasty, Joseonwangjosillok. This study will analyze literature, paintings and relics. First, I have researched Ming's(China) representative document daminghuidian, and excavated relics from the tomb dingling. I examined the usage and characteristic, through various remaining literature data, artifacts and paintings. The Gollyongpo was worn for the various ceremonies as well as an ordinary wear. According to the periode, the style and color had changed. The King wore the red Gollyongpo with 5 clawed dragon pattern, the Crown Prince wore black one with 4 clawed pattern, and the eldest son of the Crown Prince wore black one with 3 clawed dragon emblem. After the Daehan Empire, the Emperor wore gold outfit and the Crown Prince wore red outfit. Sonyongpo recorded in the Gungjungbalgi is concerned as Gollyongpo with narrow straight sleeve, one of the Sejong University Museum's Collection. There is some Possibility that the Gollyongpo painted in Bongsado is woven with dragon design, I would leave this matter for next research task.

• 보존과학연구
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• s.31
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• pp.69-77
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• 2010

Preservation of artifacts that are excavated from archeological sites is closely related to soil environment. Biological remains are especially influenced by degradation activity of microorganism from soil environment. In this study a preserved human bone in archaeological tomb, Tou-kwang-myo from Joseon Period was analyzed to characterize bacteria groups by molecular genetic tools using 16S rDNA sequences. 117 clones were identified and classified 9 phylogenetic groups : ${\alpha}$-, ${\beta}$-, ${\gamma}$-, ${\delta}$-Proteobacteria, Sphingobacteria, Clostridia, Actinobacteridae, Nitrospiraceae, and Gemmatimonadetes according to homologous 16S rDNA sequences submitted in NCBI. ${\gamma}$-Proteobacteria group appears the highest ratio in bones (about 35%) while about 19.6% belong to the Actinobacteria group. The results may contribute to study on the effect of microorganisms on the human remains with burial method.