• Industry Promotion Research
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• v.5 no.2
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• pp.27-32
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• 2020

This study is a study on the size of the stone statues of the royal tombs in the Joseon Dynasty. In summary, the size of the stone statues of Moon, Inseok and Unmanned Stone increased in the 1600s and then decreased slightly in the 1700s, but increased in size in the 1800s. It was confirmed that the average analysis result. The statue of Seok-in of the Royal Tombs of the Joseon Dynasty reflects the characters of the time, and through this, the typical figures of the times can be examined. The royal tomb has consistency and uniqueness, and the norms regarding the size of stone statues have changed over time. As a building of the authoritative symbol of the ruling class, it was a national construction where royal tombs were built according to rituals and laws. It is said that the size of the stone statues in the Joseon Dynasty was about 90cm smaller than the stone statues of the tombs. In this study, the significance of this study is to confirm the stone size of each stone age in the royal tomb of Joseon.

• Korean Journal of Heritage: History & Science
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• v.47 no.4
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• pp.74-91
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• 2014

The stone statues in the site of Mireuksaji Temple(Iksan, South Korea) were created after the stone pagoda was built in 639. They, transitional statues between animal sculptures and human shaped statues made from the late Goryeo dynasty until the early Joseon dynasty, were set up at the four corners of the stone pagoda by way of guardians. In the case of three statues, their surfaces were denudated and their iconographies have been indiscernible. However, the one in the southwest clearly shows its iconography. It is inferior in properties to the other three statues in the northwest, the northeast and the southeast respectively, but on the other hand its iconography has been well maintained. The reason is related to exposure to harmful environments; specifically, the retaining wall, built around the stone pagoda in the 17th century, had the southwest statue inside and could naturally worked as a buffer against harmful environments. As a result, for about 400 years there has been difference in weathering conditions between the three stone statues and the southwest statue, which brought denudation, the consequent indiscernibleness of iconography and biological invasion to the three statues, notwithstanding superior properties(northwest statue:$176kgf/cm^2$, northeast statue:$109kgf/cm^2$, southeast statue:$273kgf/cm^2$). In contrast, the southwest statue significantly shows its iconography with black contaminants and granule decomposition, despite inferior properties($133kgf/cm^2$). Defenseless exposure to external environment is not recommended for the stone statues, because it is hard to preserve the extant iconography. Herein lies the application of the data on microclimate around Mireuksaji Temple. As regards the weathering zone in which the stone statues are located, Conservation increases in acidity and frequency as years go by, Hereat, in the approach to the Conservation of stone statues, the first consideration needs to be morphological historicity rather than geographical location.

• Proceedings of the Korean Vacuum Society Conference
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• 2003.02a
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• pp.156-156
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• 2003

• Proceedings of the Korean Vacuum Society Conference
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• 2002.06a
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• pp.141-141
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• 2002

• The tire
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• s.73
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• pp.15-19
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• 1977

원고문제등은 과거의 타이어수출 업무에서는 전연 무연한 일이었다. 연이나 이것이 1원의 차손으로 일본의 타이어계에 끼치는 영향은 월간 5천만원, 반기에서 수10억원 이라고 해서는 그냥 앉아서 간과할 수는 없다. 아니 그뿐 아니라 매일의 환시세 조차 타이어수출 채산성의 열쇠를 장악하는 중대문제로까지 발전하고 있다. 하나, 여하한 타이어계의 힘을 갖고서도 환시세만은 어떻게 할 방법이 없다. 그래서 자위책으로써 고려되는 수단은「코스트 다운과 타이어 수출 가격의 인상」이라고 단언하는 이는 BS타이어의 석부상무이다. 그리고 또한 「코스트 다운은 어디까지나 기업전체의 문제, 당면한 수출 업무로써 이룩할 수 있는 것은 가능한 가격인상뿐」이라고 첨언, 또한 「지금이야 말로 세계의 일류품에의 자랑을...」이라고 설명한다.

• 대한치과보철학회:학술대회논문집
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• 2005.11a
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• pp.87-87
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• 2005

• Proceedings of the Korean Vacuum Society Conference
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• 2007.08a
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• pp.122-122
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• 2007

• Journal of Dental Rehabilitation and Applied Science
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• v.36 no.1
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• pp.29-40
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• 2020

Purpose: The purpose of this study was to compare the accuracy of impression taking method using the encoded healing abutment, scan body and pick-up impression coping with different implant angulations. Materials and Methods: Master model was fabricated by 3D printer and three implants were placed into the model with 0°, 10° and 20° mesial angulation. The abutments were secured to each implants and master model was scanned to make a reference model. Group P model was fabricated using pick-up impression copings and model was scanned after securing the abutments. Encoded healing abutment (Group E) and scan body (Group S) were secured on the master model and digital impression was taken using intraoral scanner 15 times each. Each STL files of test groups were superimposed with reference model using best fit alignment and root mean square (RMS) value was analyzed. Results: The RMS values were lowest in Group P, followed by Group S and Group E. Group P showed significant difference with Group S and E (P < 0.05) while there was no significant difference between Group S and E. Correlation between implant angulation and RMS value was significant in Group E (P < 0.05). Conclusion: The pick-up impression coping method showed higher accuracy and there was no significant difference in accuracy between the healing abutment and the scan body. The clinical use of the encoded healing abutment is possible, but it should be used with caution in the case of angulated implant.

• The Journal of Korean Academy of Prosthodontics
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• v.48 no.1
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• pp.48-54
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• 2010

Purpose: The objective of this study was to evaluate and compare the accuracy of impression body taking by the closed and the open tray impression technique with 3 types of impression tray. Individual tray, metal stock tray and polycarbonate tray were used. Materials and methods: Nine closed tray impressions were taken by individual tray, metal stock tray and polycarbonate stock tray, respectively with polyether impression material. 9 open tray impressions were also acquired by same manner. Precision analysis on the master models was performed by attaching the reference frameworks with alternate single screws and measuring the vertical fit discrepancy of respective analogues in working cast with a stereo microscope. Data were analyzed by 1 way ANOVA and independent t-test. Results: The average fit accuracy of impression bodies was calculated. With the closed tray impression technique, there were significant statistical differences in vertical fit discrepancy according to the types of tray. The individual tray group showed the lowest value and the polycarbonate stock tray group represented the highest. With the open tray impression technique, there was no significant difference in vertical fit discrepancy. Significant statistical difference in vertical fit discrepancy was found between the open and the closed impression technique with the polycarbonate stock tray. Conclusion: From the results above, more precise impressions could be acquired by the rigid individual tray compared with the polycarbonate stock tray. It was hard to get consistent accuracy impressions by the closed tray impression technique with polycarbonate stock trays.

• Journal of the Korean Society of Costume
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• v.58 no.6
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• pp.12-23
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• 2008

This study reports the costume changes and the factors of the changes from stone status in joseon dynasty. It can be summarized as follows: First, the artisan for the statues is one of the most important factors for the costume changes. The artisans who were involved in building the King's tomb were also made the stone statues for scholars' tombs. This results in that the style of the King's tomb influenced the costumes of stone statues for scholars' tombs. Some craftsmen who were buddhist monks also influenced the introduction of buddhist arts. Second, the stone statues are classified into 3 types according to the dead's social position: the civil officer statues, the military official statues, and the servant statues are installed for the civil officer, the military officers, and others, respectively. This principle was applied well. However, the civil official statues are mainly installed in late joseon dynasty because the civil officers are socially preferred to the military officers in late joseon dynasty. Third, there are two types of civil officer statues; Gongbok type and jobok type. Civil officer statues of Gongbok type were mainly installed in early joseon dynasty and civil officer statues of jobok type were begun to be installed in the early 16th century. Civil officer statues of Gongbok type were fade out after the late 17th century. Fourth, there are three reasons why civil officer statues of jobok type were installed at the officers's tombs 270 years earlier than at the Kings' tombs: 1) Introduction of Daemyunghoejeon and its application, 2) an establishment of a system that requires to prepare jobok individually, and 3) self-confidence of scholars' class on political and cultural maturity.