한반도 납광산의 납동위원소비를 이용한 청동 원료의 산지추정 -청해진 출토 청동기를 중심으로-

황진주 ( Jin Ju Hwang ),김소진 ( So Jin Kim ),한우림 ( Woo Rim Han ),한민수 ( Min Su Han ) 한국광물학회 2014 광물과 암석 (J.Miner.Soc.Korea) Vol.27 No.4

본 연구는 국내 방연석 광산의 방연석에 대한 납동위원소비 분석 자료를 응용하여 청해진에서 출토되는 청동기에 사용된 납 원료의 산지를 알아보고자 하였다. 또한 부산물로 산출되는 미량원소의 종류와 함량이 산지추정의 보조지표로 이용할 수 있는지의 가능성도 검토하고자 하였다. 장도 청해진에서 출토된 청동기의 납동위원소비를 기존에 일본에서 사용하던 동북아시아 납동위원소비 분포도에 적용하면, 청해진 출토 청동기는 중국산 납을 사용한 것으로 추정된다. 그러나 이를 한반도 납동위원소비 분포도에 적용하면 대상시료 대부분이 한반도 남부 옥천변성대와 영남육괴 지역의 방연석을 사용한 것으로 추정되었다. 또한 미량원소 중에서 은(Ag)이나 안티몬(Sb)의 함량은 동일 지역(zone)의 납동위원소비가 비슷한 서로 다른 광상을 분리하는데 유용한 보조지표로 활용될 수 있을 것으로 판단된다. This paper was researched that provenance of the raw material for bronze relics excavated Cheonghaejin using the distribution of lead isotope ratio based on galena ores of South Korea. Also we want to make sure that the trace elements appearing as a by-product can be used as a secondary indicator for provenance research. In the case of the galena map of the East-North Asia (Mabuchi, 1985), data are plotted in China area. Therefore it is estimated that most bronzes were produced with lead ore from China. On the other hand, the same data are plotted in the Okcheon Metamorphic Belt and Yeongnam Massif of the galena map of South Korea (KOPLID, 2012). Also the contents of Ag and Sb are available as indicator due to separate ores from similar zone in lead isotope ratio.

블록체인 기반 자기주권 신원 시스템의 영지식 증명 기술 연구

황진주 ( Jin-ju Hwang ),김근형 ( Geun-hyung Kim ) 한국정보처리학회 2021 한국정보처리학회 학술대회논문집 Vol.28 No.2

개인의 신원정보 보호에 대한 중요성이 높아지면서 개인이 직접 자신의 신원정보를 관리하고 데이터의 주권을 신원정보 소유자에게 부여하는 자기주권 신원 시스템에 대한 관심이 높아지고 있다. 자기주권 신원 시스템 내에서 개인은 스스로 자신을 식별할 수 있는 분산 식별자(DID: decentralized identifier)를 생성하고 분산 식별자 별 개인의 자격을 증명해주는 자격증명(VC: verifiable credentials) 정보를 발급 받아 개인이 보유하며 자격증명의 검증을 요구하는 검증자에게 선택적으로 자격증명 정보를 제시한다. 개인의 프라이버시를 보호하기 위해 개인의 자격증명을 제시할 때 신원정보의 실제 데이터는 감추고 자격증명의 유효성은 입증시키는 영지식 증명의 개념을 적용하고 있다. 본 논문에서는 영지식 증명 기술을 살펴보고 하이퍼레저 인디(Hyperledger Indy) 기반 자기주권 신원 시스템에서 영지식 증명 기술 도입 예를 보인다.

BBS+ 서명을 이용한 선택적 공개 과정의 검증에 대한 연구

황진주(Jin-Ju Hwang),김근형(Geun-Hyung Kim) 한국통신학회 2023 한국통신학회 학술대회논문집 Vol.2023 No.2

부여 왕흥사지 출토 사리기 내 액체 성분분석

황진주,한민수,강소영,Hwang, Jin-Ju,Han, Min-Su,Kang, So-Yeong 국립문화재연구소 2008 保存科學硏究 Vol.29 No.-

Gold case which is called sarari container was excavated from Wangheungsaji of Buyeo in October 2007. This case did not contain sarira, but was filled with clear liquid. This study focused on component analysis of the liquid which had filled sarira container, because we didn't know if this case had not originally contained sarira or not. It is said that original sarira can be melted by a some liquid in this case. So, many kinds of samples which are liquid, soil and ground water, was collected from a inner and outer of sarira container, and analyzed using a IC, ICP-MS, GC-MS and SEM-EDS. As a result of analysis, all of the elements composition was identified by general components of soil and ground water. Especially, phosphate which is chemical element to consist of human bone, did not found in this liquid.

금속문화재 복원의 부적절한 사례 연구 - 비전문가에 의한 금속문화재 복원 및 비가역성 재료를 이용한 잘못된 복원사례 -

황진주,한민수,Hwang, Jin-Ju,Han, Min-Su 국립문화재연구소 2009 保存科學硏究 Vol.30 No.-

Scientific studies of conservation techniques and materials in Korea have experienced fast development since international practice and academic knowledge have been introduced to Korea from Japan, France, Germany, and etc from the late 1960s. In recent years, it has been observed that the academic standard of research and the level knowledge of the field in Korea at present are far advanced to compete with many countries. However, many Korean cases still have displayed that the standard and the quality of conservation practice need to be improved. This research examined several cases of derelict restoration of metal relics executed by non-conservators and the effects of their ignorant use of irreversible materials on the valuable objects. The purpose of the study is to display the problem of such treatments and to suggest a need of framework to prevent the loss of original form from them. Metal Buddha statue (Cosmic Buddha) in Borim Temple (National Treasure No. 117), which was conserved by an unexperienced non-conservator, has suffered from a serious problem of corrosion because of the use of destructive material, iron chloride. Another case for metal Buddha statue in Dopian Temple (National Treasure No. 63) displays a representative example of using irreversible materials, Cashew and such ignorant application made a later conservation treatment so difficult in removing the material from the surface of the statue. In conclusion, the research argued that the understanding of materials used in the objects, and the value of relics is important, and pre-experiments before applying conservation materials to a valuable heritage are essential in the conservation treatment.

낙산사 동종의 성분분석 및 금속학적 고찰

황진주,한민수,Hwang, Jin-Ju,Han, Min-Su 국립문화재연구소 2005 保存科學硏究 Vol.26 No.-

This study is to be investigated through component analysis and metallurgical texture in order to save an information of the manufacturing technique for the bronze bell in Naksan-sa. The bronze bell was analyzed with nine samples not stirred by the fire and except the contents of tin is the maximum and minimum the average of Cu is 81.8wt%, Sn is15.8wt% and indicates that some impurities are in it. With the result of an analysis of component and microtexture for impurities material which exists in it with using the SEM-EDS, the material was revealed the sulfur. As the result of these factors, the bronze bell of Naksan-sa is used from ore which mainly consist of the Chalcopyrite($CuFeS_2$) or Bornite($Cu_5FeS_4$) containing much sulfur.

한국 청동거울에 대한 미세조직 및 성분조성의 비교 연구

황진주,Hwang, Jin Ju 국립문화재연구소 2011 保存科學硏究 Vol.32 No.-

본 고에서는 우리나라에서 발굴된 청동거울에 대해 합금비율과 금속조직 및 경도를 살펴보고, 각 유물별 주성분 분포를 그려본 후, 주례고공기 "周禮" "考工記" 중 감수지제(鑑燧之齊)의 조성비와 비교하고자 하였다. 연구 결과 청동거울은 비록 넓은 범위이지만 크게 두-세 그룹으로 나뉘는 것을 볼 수 있었다. 구리 70-80%에 15-20%의 주석을 함유하고 납은 5% 미만 들어있는 청동거울과, 주석의 함량이 20%-30%로 매우 많아 경도가 높고 금속의 흰색 광택이 좋은 청동거울, 구리 60-70%에 15-20%의 주석을 함유하고 있지만 납이 10-15% 이상 들어있는, 경도가 낮고 광택이 좋지 않은 청동거울로 나뉘어 진다. 중국 주시대의 고문헌 "주례(周禮)" "고공기(考工記)"중 감수지제(鑑燧之齊)의 주석 33%(50%) 보다는 적은 양의 주석을 함유하고 있었다. 아직까지 우리나라에서는 비파괴분석으로 분석된 유물을 제외한다면 감수지제(鑑燧之齊)의 주석이 함유된 청동거울은 발견되지 않았다. 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.

청동 무기류의 성분조성 및 미세조직을 통한 제작기법 연구

황진주,Hwang, Jin-Ju 국립문화재연구소 2010 保存科學硏究 Vol.31 No.-

Many bronze artifacts have been excavated and preserved through conservation treatments in Korea but the analysis on artifacts was regarded as destruction of artifacts from the academic world of archaeology, Therefore, it is not so available to perform research on production techniques and provenances by with qualified analysis. Accordingly, there were only a few study cases about quality properties and production techniques But recently gradual change started to appear from the awareness of the need for the scientific approach to excavated artifacts. While Korean ancestors already had applied the different alloying ratios according to the use and shape of bronze artifacts, the analysis and study have been restrictedly performed. As a result, there was only a few analysis cases on a small minority of artifacts because they are the ancient relics, which made it hard to understand the bronze artifacts more deeply. This study researched into components rate, production techniques and hardness of bronze weapons such as a bronze sword and compared their alloying ratios with those of Chinese old records (周禮考工記, 金之六齊).

방사성탄소연대측정

이현주,황진주,백현주,Leigh, Hyeon-Ju,Hwang, Jin-Ju,Paek, Hyun-Ju 국립문화재연구소 2002 保存科學硏究 Vol.23 No.-

It is very important to determine the age of the Cultural Properties in archeology. In about 1950, W.F. Libby and a team of scientists at the University of Chicago developed the Radiocarbon Dating technique. Radiocarbon($^14$C) Dating is probably one of the most widely used and best known absolute dating methods. Radiocarbon ages are conventionally specified to the year 1950. This year is 0 BP year. BP is the initial of Before Present. The $^14$C within an organism is continually decaying into stable carbon isotopes. When $^14$C decays, it emits a $\beta$ - particle with an energy content of 156 KeV and becomes 14N. Only the $\beta$ - particle is detected by Liquid Scintillation Counting. $^14$C has a half life of 5730 years. It has been used to date samples as old as 50,000 years. Radiocarbon determinations can be obtained on organic material : wood, charcoal, shell, etc. The results of radiocarbon dating using Benzene Synthesizer and Liquid Scintillation Counter are KCP539 $4030\pm60$BP year, KCP540 $3980\pm60$BP year, KCP575 $4870\pm50$, KCP576 $100\pm50$BP year, KCP577 $130\pm50$BP yea and KCP578 $210\pm70$BP year.

철원 도피안사 철조비로자나불상의 보존처리

홍종욱,황진주,최준현,신희내,이요한,한병일,이오희,Hong, Jong-Ouk,Hwang, Jin-Ju,Choi, Joon-Hyun,Shin, Hee-Nai,Lee, Yo-Han,Han, Byung-Il,Le, Oh-Hee 국립문화재연구소 2009 保存科學硏究 Vol.30 No.-

The Seated iron Vairocana Buddha statue of Dopiansa Temple, Cheolwon was designated National treasure No. 63, it is very important to rearch about Korean Buddha statue because it has an inscription on the back indicates that it was made in 865 A.D., the fifth year of the reign of King Gyeongmun(861-875) of Unified Silla(668-935), through the devoted faith of some 1,500 Buddhist followers of the Cheorwon-gun area. In this conservation treatment, for the Seated iron Vairocana Buddha statue of Dopiansa Temple, Cheolwon plating layer and cashew paint layer of the iron pedestal were removed and for the paint the Body of the Buddha, fake metal layer and plaster layer were removed, stabilizing treatment and coating treatment were done, and removal and restoration of earlobe which had been damaged and later was restored with plaster in the regilding in 1988, and the white hair on forehead was replaced with material of rock crystal, and conch-shaped hair damaged was restored on 35 spots.