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방사성탄소연대 위글매칭에 의한 순천 송광사 불패의 연대측정
연정아,박원규 한국가구학회 2014 한국가구학회지 Vol.25 No.1
The objective of this study was to date a Buddhist wooden Tablet (No. 271) atSongkwangsa Temple, Suncheon, Korea, using wiggle matching of radiocarbon dates. For wigglematching, three samples (2nd, 16th and 34~35th rings from inner side) in the pedestal ofthe Tablet were selected among total of 37 tree rings. Wiggle matching the radiocarbon dates ofthree samples resulted in A.D. 1660~1679 (95.4% confidence interval) for the outermost ring. This interval suggested the age of this tablet as the late 17th century, which was almost at thesame age as other early Buddhist tablets in Korea.
연정은 수선사학회 2005 史林 Vol.0 No.24
The purpose of this study was to explore the JUNSI YONHAP UNIVERSITIES(the Allied Universities during the Korean War) on Educational institution control. The Universities were established in Pusan, Daejun, Junju, Kwangju in November 1950 - May 1951 and disorganized in May 31. 1952. The Junsi Yonhap Universities were organized against the government distrust and the educated class agitation. The Junsi Yonhap Universities were related to the National University. Two organzation were purpose to educational institution control. After the Seoul recovery, this plan was mentioned. The plan of University was attend to educational institution control. But the organization manage not good. especially the fund was bad. The Korean Professors' Organization, which consisted of professor in place of refuge solute the lack of the professor. This organization solute the economy difficult of the professor and collect the right-anti communist. The Junsi Yonhap Universities were a place where between the university student escape from the army and the university student study hard. The Junsi Yonhap Universities were a place where between the professor become a good citizen safely and the professor become a anti communist compulsorily. The Junsi Yonhap Universities were known to a corrupted place where were an ‘incapable professor’ and a ‘fake student’ who escape from the army.
연정아 ( Jeong Ah Yeon ),김요정 ( Yo Jung Kim ),박원규 ( Won Kyu Park ) 한국목재공학회 2014 한국목재공학회 학술발표논문집 Vol.2014 No.-
본 연구에서는 한국 사찰에 소재한 목패 23개를 대상으로 수종 및 연대를 조사하였다. 목패의 수종은 피나무속(Tilia spp.)과 은행나무(Ginkgo biloba)가 62%로 가장 많은 점유율을 나타내었고, 소나무류(redpine group, 8점), 오리나무류(Alnus group, 7점), 버드나무속(Salix spp., 6점), 배나무속(P yrus spp., 1점), 대나무류(1점), 잣나무아속(soft pines group, 1점) 순으로 조사되었다. 목패 10개에 대한 연륜연대 또는 방사성탄소연대 측정을 실시하였다. ‘수타사 목패’와 ‘개인소장 목패’의 C14 연대(95.4%)가 1471~1636년과 1483~1641년으로 측정되어 17C 전반 내지 그 이전에 제작되었을 것으로 볼 수 있었다. ‘순천 송광사 목패’는 C14 위글매치 결과, 95.4% 신뢰구간이 1658~1677년으로 산출되어 17C 중반에 제작된 것으로 밝혀졌다. ‘고성 옥천사 목패’의 연륜년대 측정 결과, 마지막 연륜에 1878년이 부여되어 19세기 후반에 제작된 것으로 나와 가장 늦은 시기의 것으로 밝혀졌다.
연정운 ( Jung Woon Yeon ),원창환 ( Chang Whan Won ),원형일 ( Hyung Il Won ),( H. H. Nersisyan ) 대한금속재료학회 ( 구 대한금속학회 ) 2012 대한금속·재료학회지 Vol.50 No.6
YAG:Ce phosphor were prepared in a self-propagating high-temperature synthesis (SHS) using a 1.5Y2O3+2.5Al2O3+0.116CeO2+3.0KClO3+kCO(NH2)2+m(C2F4)n precursor mixture. The heat for the combustion propagation was provided by the reaction of a KClO3+CO(NH2)2+(C2F4)n mixture. Pure-phase YAG phosphor was synthesized at the combustion temperature of 1210℃ from k=3.6 mole and m=0.3 mole. The as-prepared YAG:Ce phosphor had a particle size of 2-10 ㎛. The addition of Teflon to the precursor mixture increased the YAG particle size and its luminescent intensity. The emission peak of the YAG phosphor was blue-shifted with an increase of Teflon concentration.