嶺南地域出土豆形土器의 性格

심수연(Sooyeon Sim) 한국고고학회 2011 한국고고학보 Vol.79 No.-

두형토기(豆形土器)는 원형점토대토기 단계부터 약 기원 전후한 시기까지 출토되는, 산화염의 무문굽다리토기 중에서도 배신과 대각의 접합을 기본으로 하는 토기이다. 한반도에는 초기철기시대에 원형점토대토기와 함께 요령지역(􆩚􆧑地域)에서 유입되었으며, 특히 영남지역에서는 고식와질토기(古式瓦質土器)가 출토되는 목관묘 단계까지도 확인된다. 시간성을 가장 민감하게 반영하는 속성은 대각의 내·외면 형태이고, 각 형식(Aa가·Aa나·Ab·Ba나·Bb)들은 추가와 소멸이 함께 인지된다. 또한 전 기간 동안 대각의 길이가 짧은 것과 긴 것(1·2·3群)은 꾸준히 함께 사용되었다. 영남지역에서 두형토기가 출토되는 기간은 크게 3단계로 나눌 수 있는데, 각각의 단계를 다시 세분하여 총 6단계로 변화상을 살펴볼 수 있다. 그 중에서도 시기별 획기가 되는 I·II·III단계에서 큰 변화를 보인다. 먼저 I단계는 유입기로 무덤에는 부장되지 않아 장송의례에서는 사용되지 않으며, 수평 조으기·비틀어 조으기·투공 넓히기 기법으로 만들어진다. II단계는 성행기로 대구분지를 중심으로 부장이 시작되고 수량이 증가하며 기종분화 및 파생이 일어난다. 제작기법은 투공 넓히기·종사방향 조으기·돌려 넓히기 등 I단계에서 행해지던 기법의 변형과 동시에 새로운 기법이 등장한다. III단계는 감소 및 소멸기로 출토사례가 현저하게 줄어들고 제작기법 또한 II단계에서 보이던 다양한 기법이 확인되지 않는다. 그리고 와질(瓦質)로 전환되지 않고 무문(無文)의 재질로 잔존하며, 칠제(漆製)로 제작되어 위세품의 기능을 한다. 두형토기는 일반적으로 의례용 토기라고 알려져 있지만 식기로도 쓰였을 것으로 판단된다. 다만 대각의 높이가 높은 것들은 의례 시에 좀 더 사용빈도가 높았을 것이며, 그러한 높이는 시간성이나 위계보다는 상황에 따른 용도의 차이를 반영한다. 따라서 그 용도는 상당히 유동적인 토기라고 할 수 있다. The mounted dish was used from the Round Attached-rim Pottery Phase to around the beginning of the 1st century AD. It is a type of plain coarse pottery, fired in an oxidizing atmosphere, which consists of a dish and mount attached together. It was first introduced from the Liaoning region into the Korean peninsula during Early Iron Age, along with round attachedrim pottery. In the Yeongnam area, in particular, mounted dishes dating to the Wooden Coffin Tomb Phase (which yields archaic-type grey earthenware) have been identified. Among the characteristics of this pottery type, the inner and outer shape of the mount and the shape of the dish are seen to be temporally sensitive. Each of the types (Aa-Ga, Aa-Na, Ab, Ba-Na and Bb) experienced popularity and decline. Throughout the entire period of their use, types with tall and short mounts were consistently used together (Groups 1, 2 and 3). The time period during which mounted dishes were used in the Yeongnam area can be largely divided into 3 phases, and each of these 3 phases can be further divided, thereby forming a total of 6 phases. Among these, Phases I, II and III, which mark the different time periods, demonstrate significant changes. Firstly, Phase I marks the introductory period during which the mounted dish was not used as a grave good nor in funerary ceremonies. In this period, the mounted dish was made using horizontal tightening, twisted tightening and mount hole widening techniques. Phase II witnessed growth in popularity of the mounted dish, which began to be used as a grave good in the area of the Daegu basin. Increased production and type differentiation and variation are characteristics of this period, and production utilized both new and preexisting techniques, such as mount hole widening, longitudinal and oblique tightening and widening by means of rotation. Phase III witnessed the reduced production and eventual disappearance of this pottery type. The number of examples identified was reduced greatly and the varied production techniques of Phase II were no longer used. In addition, the mounted dish did not make the transition to grey earthenware, but continued to be made with a plain coarse fabric. They were also made in lacquerware and functioned as prestige goods. The mounted dish is typically known to be a kind of ritual vessel, but the possibility that it may have been used as tableware is considered. The dishes with higher mounts would have been used more frequently in rituals. In other words, the differences in mount hight can be seen to reflect differences in function, rather than hierarchy or time period. It is thus possible to suggest that the mounted dish was a type of pottery with highly flexible functions.

Iodine-mediated non-destructive multilayer stacking of polymer semiconductors for near-infrared-selective photodiode

Park, Sooyeon,Yu, Seong Hoon,Kim, Juhee,Kang, Mingyun,Sim, Kyu Min,Chung, Dae Sung Elsevier 2019 ORGANIC ELECTRONICS Vol.68 No.-

<P><B>Abstract</B></P> <P>A facile stacking technology must be developed for various types of polymer semiconductors through a continuous solution process for successful commercial applications of organic electronics. In this study, we report a strategic method of stacking different polymer semiconductors from the same processing solvent in a non-destructive manner using vapor-phase iodine. We utilize the concept of reversible doping mechanism of iodine; interstitial iodine ions in the polymer backbone significantly reduce the solubility of entire films and such an immobilized phase can be quickly recovered to the initial phase via a simple vacuum treatment. Thus, a polymer–polymer p-n planar heterojunction (PHJ) can be realized using the same solvent without compromising the inherent electrical/optical characteristics of the polymer semiconductor. Detailed photophysical and morphological analyses on the doping and dedoping of polymeric semiconductors with iodine are discussed. As a target application of such iodine-mediated non-destructive stacking technology, a thin-film near-infrared(NIR)-selective polymeric photodiode, which can fully reflect the genuine advantages of a well-defined PHJ, is demonstrated. We successfully demonstrate a visible-blind and narrow-band NIR-selective photodiode with a high peak detectivity of 1.50 × 10<SUP>11</SUP> Jones.</P> <P><B>Highlights</B></P> <P> <UL> <LI> We suggest a facile and non-destructive multilayer stacking strategy of polymer semiconductors based on iodine doping/dedoping methods. </LI> <LI> As using iodine-mediated multilayer stacking method, we demonstrate a thin-film, visible-blind and NIR-selective polymeric photodiode. </LI> <LI> Our visible-blind and NIR-selective photodiode show a high peak detectivity of 1.50 × 10<SUP>11</SUP> Jones. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>

TMEM16A/ANO1, a Ca2+-dependent chloride channel is expressed in ON bipolar cells of the goldfish retina

Ji Hyun Jeon,Sooyeon Sim,Sun-Sook Paik,Myung-Hoon Chun,In-Beom Kim 대한체질인류학회 2011 대한체질인류학회 학술대회 연제 초록 Vol.54 No.-

Anthocyanins Extracted from Mulberry Rescue Retinal Degeneration Induced by N-methyl-N-nitrosourea in Rats

Eojin Jeong,Seungbum Kang,Sooyeon Sim,Sun-Sook Paik,In-Beom Kim,Myung-Hoon Chun 대한체질인류학회 2011 대한체질인류학회 학술대회 연제 초록 Vol.54 No.-

메티마졸 검출을 위한 LC-MS/MS 분석법 개발

최준영 ( Jun Young Choi ),하성용 ( Sungyong Ha ),김수연 ( Sooyeon Kim ),이민화 ( Minhwa Lee ),이영수 ( Youngsu Lee ),심진하 ( Jin Ha Sim ),김지영 ( Ji Young Kim ),신동우 ( Dong-woo Shin ),김현경 ( Hyun-kyung Kim ),엄소영 ( So-youn 한국환경농학회 2023 한국환경농학회 학술대회집 Vol.2023 No.0

Methimazole(1-methyl-2mercaptoimidazole), an antithyroid medicine is widely used to treat hyperthyroidism by inhibiting the production of thyroid hormone. It has been also approved for the same purpose for cats in Korea, but there is information that is also used for livestock. Therefore, it is necessary to develop reliable and sensitive methimazole detection methods for food safety assessment. In this study, we developed Liquid chromatography-tandem mass spectrometry (LC-MS/MS) method to quantify methimazole in various samples (beef, pork, chicken, egg and milk). The samples were extracted usi cartridge 500 mg. Through the CODEX guidelines (CAC/GL 71-2009), the developed method was validated to be able to detect and quantify methimazole with excellent linearity, precision, and accuracy. The limit of detection (LOD) and limit of quantification (LOQ) were 0.004 mg/kg and 0.01 mg/kg, respectively. R-square value (coefficient of determination with calibration range) of the linear standard calibration curves was higher than 0.99. The recovery rates were ranged from 70% to 112%, with the coefficient of variability (CV) of less than 10%. This method can be used for the food safety assessment and monitoring for the imported and domestic livestock samples.