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이강민,김영관,Lee, Gang-Min,Kim, Yeong-Gwan 한국재료학회 1999 한국재료학회지 Vol.9 No.9
본 연구에서는 SOI 구조를 이용한 50$\mu\textrm{m}$ 두계의 규소 태양전지의 이용 가능성과 제한사항을 제시하기 위하여, interdigitated contact을 이용한 전극을 형성하도록 전지를 설계한 후 단계별 사진공정을 통해 태양전지를 제조하였다. Bonded SOI wafer를 이용하여 제조된 50$\mu\textrm{m}$ 두께의 결정질 규소 태양전지의 효율은 전극간격이 1100$\mu\textrm{m}$과 base width가 35$\mu\textrm{m}$인 경우에서 11.5%로 가장 높은 값을 나타내었다. 또한 실험결과로부터 전면전극을 이용한 태양전지의 구조는 power loss를 최소화하는 최적의 base fraction을 적용하는 것이 필요하며, 전지의 효율은 fill factor에 강한 의존성을 나타내기 때문에 fill factor loss를 최소화하는 설계조건이 필요함을 알 수 있었다. The recent important issue in solar cell fabrication is to adopt thin film silicon solar cells on cheap substrates. However, thin cells demand new grid design concept that all the contacts(to the emitter and base) be located on the front surface. Hence, the aim of the investigation presented in this paper was to determine the potential and the basic limitation of the design. With this concept, an interdigitated front grid structure was realized and cells were fabricated through a set of photolithography processes. Confirmed efficiencies of up to 11.5% were achieved on bonded SOI wafers with a cell thickness of 50$\mu\textrm{m}$ in the case of finger spacing more than $\mu\textrm{m}$ and a base width of 35$\mu\textrm{m}$. It was also shown from the results that the design rules for optimizing the base fraction and reducing the shadowing fraction are noted as an important technique to realize high-efficiency thin silicon solar cells.
잠수관찰을 통한 통영 영운리 연안의 어류 종조성 및 계절변동
이강민 ( Gang-min Lee ),이용득 ( Yong-deuk Lee ),박종율 ( Jong-yul Park ),곽우석 ( Woo-seok Gwak ) 한국어류학회 2018 韓國魚類學會誌 Vol.30 No.2
이번 연구는 경남 통영시 영운리의 어류 종조성 및 계절변동에 대한 연구를 2016년 10월부터 2017년 9월까지 잠수 관찰기법으로 실시하였다. 조사기간 동안 총 5목 35과 45종 5,358개체가 관찰이 되었다. 그 중 농어목 (Perciformes)이 29종으로 64%, 쏨뱅이목 (Scorpaeniformes)이 8종 18%, 복어목 (Tetraodontiformes) 3종 7%, 차지하였다. 우점종으로는 볼락 (Sebastes inermis)이 차지하였고 아우점종으로는 그물코쥐치 (Rudarius ercodes)였다. 관찰된 종수는 10월에 33종으로 가장 많았고 2월에 4종으로 가장 적었으며 수온이 상승하는 3월 이후에 종수가 증가하였다. 개체수는 2016년 10월에 950개체로 가장 많았으며 이 시기는 주요 출현어종 인상어(Neoditrema ransonnetii), 그물코쥐치 (Rudarius ercodes), 흰줄망둑 (Pterogobius zonoleucus), 볼락 (Sebastes inermis)이 대부분 차지하였다. 특히 아열대어류인 청줄돔 (Chaetodontoplus septentrionalis), 청줄청소놀래기 (Labroides dimidiatus), 노랑거북복 (Ostracion cubicus) 세 종이 출현하였고 노랑거북복과 청줄청소놀래기는 통영에서 처음 출현하였다. To observe species composition and seasonal variation of fish in the coastal area, monthly underwater visual census were conducted from October 2016 to September 2017 in Tongyeong, Korea. A total of 5,358 individuals belong to 45 species were observed during the study. Perciforme fish were the most dominant (29 species), followed by Scorpaeniformes (8 species), Tetraodontiformes (3 species). The most dominant species is Sebastes inermis (19.2%), and followed by Rudarius ercodes (18.5%). Thirty three species with the highest abundance were observed in October 2016 and only 4 species were observed in February 2017. Among three subtropical fishes, such as Chaetodontoplus septentrionalis, Labroides dimidiatus, and Ostracion cubicus, the latter 2 species were firstly observed in the southern coast of Korea. Compared with the previous studies using conventional tools such as beam trawl and seine net for fish collection, underwater visual census is much more efficient way to investigate fish diversity and assemblages in coastal waters.
일본신도 신악가(神樂歌)의 신격(神格)연구 - 아지메(阿知女)를 중심으로
이강민 ( Lee Gang Min ) 국제뇌교육종합대학원 국학연구원 2020 선도문화 Vol.28 No.-
In general, the highest god of Japanese Sintoism is commonly known as Amaterasu Ohokami(天照大神), the sun god and the ancestor god of Japanese emperor family. However, in the lyrics of the Gagura songs(神樂歌), which were reportedly written in the middle of the Heian era(平安時代),“Ajime(阿知女)”rather than “Amaterasu” appears as a major divinity. It also appears quite consistently often and appears to have the meaning of the most important ritual among the Gagura songs, when viewed in relation to the lyrics. It is strange that Amaterasu is not the main deity in the lyrics, and that Azime is enshrined as the main deity. However, since it is a fact, this paper attempts to clarify its status by citing the lyrics directly about the god Ajime appearing in the Gagura songs. We also looked at the claims about Azime's reality, which were claimed by Japanese Shinto scholars. Historical Japanese scholars have also paid attention to Ajime's deity and origin, and most Shinto scholars have a view of 天鈿女(Amenouzume) appearing in the myths of the gods. In addition, it is said that ``Azumi-Isora(安曇磯良), the god of ``Azmi tribe(安曇(阿曇)氏)'', a seaman tribe centered on Kyushu, and Azime was transferred from Arume to Atzime and back to Azime'' and there are theories of mother Ungyeo(熊女,Dahngun' mother) and Azime of heaven, earth, and man. On the other hand, Amaterasu is attracting attention because there is a study that revealed how and when it became the ancestor god of the Japanese emperor family as it is now. He is Tzukusi-nobuzane(築紫申眞), a graduate of the Faculty of Literature, Japanase Kookhakwon University, under the guidance of folklore scholar Origuchi(折口信夫). In his book The Birth of Amaterasu, he claimed that the god of ancestors, the ancestor god of the current emperor, was created by the emperor at the end of the seventh century. And the former emperor's family claims to have worshiped the natural god, the sun god (written as 日神 or 大日靈貴). His arguments are not only based on the theories of prominent Shinto scholars, but also based on such documents as Kozikii(古事記), Nihonshoki(日本書紀), and Sok-nihonki(續日本記), and are hard to ignore. In addition, this paper suggests significant implications for comparing the divinity phase between Ajime and Ohhirume(大日靈貴). Azime is the goddess. At the same time, we can see that Azime is the god of ‘한 (韓)’ in the lyrics(韓神)of the Gagura song. In addition, it can be seen that Azime has the meaning of heaven, earth, and man. Azime is also most likely an ancient Silla (now Gyeongsang-do) language. Summarizing all the situations like this, Azime finds out that she is the same as the Mago in Jingsim Lok Budoji(『澄心錄 符都誌』). This study attempted to look at the deity of “Ajime(阿知女) in the the lyrics of the Japanese Gagura, from a different point of view.