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- 저자 : 진호신(Jin, Ho-Shin) (검색결과 2 건)
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진호신(Jin, Ho-Shin) 동북아시아문화학회 2021 동북아시아문화학회 국제학술대회 발표자료집 Vol.2021 No.07
Many Chinese ceramics have been excavated from the underwater off Mado Island in Taean since 2009. Since ancient times, the sea has been called ‘Nanhangnyang’ meaning that is hard to cross. These Chinese ceramics are interpreted as a result of the Goryeo Dynasty’s Yeosong Trading. Most of these ceramics, which are believed to have been left behind by merchants and envoys of Song-Wien era were made in Fuzen China and reached the Korean Peninsula through the old Chinese city of Puzou and Chonzou. The Chinese pottery, which was excavated coast of Mado-Island is made from the Five Dynasties to Jin-Song-Wien era and is mostly exported from the Min-river of Fuzen Province. It is also a proof that the trade between the Koryo and Song Dynasty was so active. Since 2009, when underwater excavations began off the coast of Taean Mado, Chinese ceramics have presented many challenges tj Korean and Chinese researchers. In the future traffic studies on historic cities and old kiln site, including surveys on the Min River in Fuzen Provice will be needed.
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목승원,이성호,육인수,박영식,진호,한정열,문봉곤,차상목,김건희,임명신,Mok, Seung-Won,Lee, Sung-Ho,Yuk, In-Soo,Park, Young-Sik,Jin, Ho,Han, Jeong-Yeo,Moon, Bong-Kon,Cha, Sang-Mok,Kim, Geon-Hee,Im, Myung-Shin 한국천문학회 2006 天文學論叢 Vol.21 No.2
The KASINICS (KASI Near Infrared Camera System) is a ground-based Near-Infrared (NIR) imaging instrument developed by the Korea Astronomy and Space Science Institute (KASI). In this paper, we report the test results of the KASINICS camera optics system which is comprised of a 1-1 Offner relay. We measure that the surface RMS fluctuations of the Offner mirrors are at the level of $10^{-1}-10^{-2}$ of the target wavelengths, showing that the mirrors are sufficiently smooth for NIR observations. The alignment of the Offner optics system has been checked too. Our ray-tracing simulations find that the image quality should not degrade more than the pixel size of the KASINICS ($40{\mu}m$), if a de-centering or a tilt of the Offner mirrors are within 5mm, or $2.5^{\circ}$. Our measurement shows that the de-centering or the tilt of the Offner mirrors are less than 1 mm or $0.5^{\circ}$, assuring that the KASINICS image quality are not affected by the alignment errors. We have also measured that the optics resolution is $20{\mu}m$ and it does not degrade more than 10% over the detector surface area of 14.3 mm ${/times}$ 14.3mm. Overall, we conclude that the KASINICS optics system satisfies the design requirements for NIR imaging observations.
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