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이영태 ( Young Tae Lee ),이유나 ( You Na Lee ),이왕훈 ( Wang Hoon Lee ) 한국센서학회 2013 센서학회지 Vol.22 No.5
In this paper, we developed contact type temperature sensor with single crystal silicon strip thermopile. This sensor consists of 15 ptype single crystal silicon strips, 17 n-types and contact electrodes on silicon dioxide silicon membrane. The result of electromotive force measuring showed very good characteristic as 15.18 mV/℃ when temperature difference between the two ends of the thermopile occurs by applying thermal contact on the thermopile which was fabricated with silicon strip of 200 μm length, 20 μm width, 1 μm thickness.
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잉크젯 프린팅 기술을 이용한 플렉서블 온,습도센서 개발
계지원 ( Ji Won Kye ),한동철 ( Dong Cheul Han ),신한재 ( Han Jae Shin ),김헌곤 ( Heon Gon Kim ),이왕훈 ( Wang Hoon Lee ) 한국센서학회 2015 센서학회지 Vol.24 No.2
This paper presents the inkjet-printed flexible temperature and humidity sensor(F-TH sensor) using PEDOT:PSS. The series, mesh and parallel type sensing element using PEDOT:PSS ink was printed on the overhead projector(OHP) film. The fabricated sensor of each structure has the temperature sensitivity of 140 Ω/℃, 29 Ω/℃ and 1.4 Ω/℃ with linearity, respectively. Also the fabricated sensor was not only possible to measure a temperature, but also to detect humidity. The humidity sensitivity of 400 Ω/%RH, 3.4 Ω/%RH and 3 Ω/%RH with linearity, respectively. The fabricated F-TH sensor is expected for the various applications such as electronic devices, bio-healthcare, industrial field.
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李載斗,李旺熏,蘇仁永 成均館大學校 1967 論文集 Vol.12 No.-
羊齒植物의 개고사리 (Athyrium nipponicum), 裸子植物의 은행나무(Ginkgo biloba), 雙子葉 植物의 봉선화(Impatiens Balsamina), 單子葉植物인 벼(Oryza sativa),의 根端分裂組織細胞의 微細構造를 比較하기 위하여 各 材料의 根端組織部位를 1% Osmium tetroxide로 固定하고 Methacrylate resin에 埋沒하여 100∼200Å로 切斷하여 電子顯微鏡으로 觀察하였든바 mitochondria의 fragmentation의 過程과 cristae의 構造가 明白하고, 原始色素體에는 未發達狀態인 lamellae가 存在하고 있으며 mitochondria와 原始色素體와의 크기가 區別되었다. Golgi體는 봉선화와 벼 以外에는 明白하지 못하고 endoplasmic reticulum은 全面的으로 細胞內에 均等히 分布되어 있으나 核 周圍에 많이 集中되는 傾向이 있었다. Amyloplast는 은행나무와 벼에서만 나타났으며 lipid body는 液胞속에서 形成되는 것을 觀察할 수 있었다. mitochondria, endoplasmic ieticulum, proplastid의 數는 벼, 봉선화, 은행나무, 및 개고사리의 系統的 順序로 나타났음이 特徵的이다. 細胞質에 比한 核의 크기도 벼. 봉선화, 은행나무 및 개고사리의 順序이나 nucleous의 크기는 細胞質比의 反應이었다. 은행나무에 있어서는 nucleous가 nucleoloneme의 構造를 하고있고 2個가 存在하는 것이 特異하였다. As the results of investigation of the fine structures of meristematic cell of the root tips of Athyruim nipponicum in Pteriodophyta, Ginkgo biloba in Gymnospermae, Impatiens Balsamina in Dicotyledone, and Oryza sativa in Monocotyledone, we observed the difference in them. We cut off the meristematic part of their root tips and fixed them with 1% Osmium tetroxide under the room temperature. After embeding them in methacrylate resin, we cut them into the thickness of 100-200 Å with ultramicrotome and them reinforced them with carbon in the vacuum evaporator and observted it with the electron microscope. As the results we obtained the following: 1. It was possible to observe the fragmentation process of the mitochondria and also to distinguish the proplastid from the mitochondria in their sizes. Further it was observed that there existed the constructure of unmatured lamellae in the proplastid while the mitochondria had the figure of cristae. 2. The golgi apparatus had the structure of cisternae, which were able to be seen only in the two plants of the Impatiens Balsamina and Oryza sativa, and were not apparently seen in the others than the above two. 3. The endoplasmic reticulums were distributed uniformly in the cytoplasm, however, tended to concentrate around the nucleus. 4. The formation on the amyloplast, which proved to be in the proportion to the maturity of the proplasted, was able to be seen in the oryza sativa and Ginkgo biloba, but not to be seen in the Impatiens Balsamina and Athyrium nipponicum. 5. The lipid body was found as depositional substances, which can be observed in the vacuole. 6. The cytoplasmic nucleus ratio were also found to follow the systematic order of the Oryza sativa, Impatiens Balsamina, Ginkgo biloba, and Athyrium nipponicum. 7. The numbers of the mitochondria, endoplasmic reticulum, and proplastid which are contained in the cytoplasm were characterized by following the systematic order of the Oryza sativa, Impatiens Balsamina, Ginkgo biloba and Athyrium nipponicum. 8. The order of the sizes of nucleous is just opposite to the cytoplasmic nucleus ratio. 9. The nucleous of Ginkgo biloba had the structure of nucleoloneme, and was characterized by having two nuclei.
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