• Conservation Science in Museum
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• v.10
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• pp.15-20
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• 2009

This paper introduces a conservation treatment for silver diadem ornaments with flower design and the types of corrosive chemical compounds. Twelve silver diadem ornaments with flower design from the Baekje period excavated thus far have been classified into four types. This classification is made more specific in this paper. Each of the silver diadem ornaments was compared with one another. The comparison showed that the same production technique had been used for all of them, but they differed in size and thickness. This suggests that only a few pieces were produced whenever needed, rather than many pieces being produced at the same time.

• Journal of the Korean Society of Clothing and Textiles
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• v.47 no.2
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• pp.392-408
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• 2023

This study concerns the flower-shaped silver crown ornament and inverted triangle-shaped crown ornament of Baekje, which were worn frequently during the Sabi period. The purpose of this study is to present a new estimated shape of the crown and ornaments. Individual excavation cases and archaeological data were analyzed. The flower-shaped silver crown ornament appears as a thin silver plate with buds on the center and side branches and is symmetrically bent from the center to form a ∧ shape. The inverted triangle-shaped crown ornament resembles two right-angle triangles that are back-to-back. The crown to which the two ornaments were added appears to be a triangular crown that was made by covering birch bark of with fabric. Both ornaments were believed to have been located on the front of crown, but that is incorrect. The flower-shaped silver crown ornament was inserted on the front of the crown, and the inverted triangle-shaped crown ornament was fixed with a tip at the top of the crown and then obliquely on the crown's side. The inferred design was confirmed with real reproductions. This study is significant in that it identifies the crown of Baekje during the Sabi period.

• Korean Architects
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• no.9 s.115
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• pp.10-12
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• 1978

• Journal of the Korean Society of Costume
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• v.17
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• pp.21-27
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• 1991

• Korean Architects
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• no.8 s.36
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• pp.80-80
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• 1971

• 전기의세계
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• v.50 no.7
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• pp.17-24
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• 2001

• 학교보건
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• s.2
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• pp.34-36
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• 1976

• Journal of the Institute of Electronics Engineers of Korea SP
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• v.38 no.5
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• pp.529-537
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• 2001

According to increase of preference to the large display device, demand of a three-tube projection TV increase in the display market. But luminance per unit area of a 3-tube projection TV is less bright than that of original one -tube TV The color gamut of phosphor used in the projection TV is different to standard gamut of phosphor in NTSC. In this paper, we analyze the relationship between coordinates of RGB phosphor and RGB beam currents according to the color temperature in projection HDTV. We also proposed the range of reference white which maximize the luminance that viewer feel based on both Helmholtz-Kohlrausch effect which is visual property and degradation of image according to the change of beam profile by current-ratio.

• Journal of Advanced Marine Engineering and Technology
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• v.34 no.1
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• pp.30-36
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• 2010

The heat flowrate and pressure drop of $CO_2$ in a multi-tube-in-tube helical coil type gas cooler were investigated experimentally. The mass flowrate of $CO_2$ and coolant were varied from 0.06 to 0.075 [kg/s], respectively and the cooling pressure of gas cooler were from 8 to 10 [MPa]. The heat flowrate of $CO_2$ in the test section is increased with the increase in mass flowrate of coolant, the cooling pressure and mass flowrate of $CO_2$. The pressure drop of $CO_2$ is decreased with the decrease in mass flowrate of coolant and $CO_2$, but decreased with increase in cooling pressure of $CO_2$. The heat flowrate of $CO_2$ in the multi-tube-in-tube helical coil type gas cooler is greatly higher than that of $CO_2$ in the double pipe type gas cooler, while the pressure drop of $CO_2$ in the multi-tube-in-tube helical coil type gas cooler is greatly lower than that of $CO_2$ in the double pipe type gas cooler. Therefore, in case of the application of $CO_2$ at the multi-tube-in-tube helical coil type gas cooler, it is expected to carry out the high-efficiency, high-performance and compactness of gas cooler.

• The Science & Technology
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• v.1 no.2 s.2
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• pp.77-80
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• 1968