• Title/Summary/Keyword: C-Lab

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Ultra low temperature polycrystalline silicon thin film transistor using sequential lateral solidification and atomic layer deposition techniques

  • Lee, J.H.;Kim, Y.H.;Sohn, C.Y.;Lim, J.W.;Chung, C.H.;Park, D.J.;Kim, D.W.;Song, Y.H.;Yun, S.J.;Kang, K.Y.
    • 한국정보디스플레이학회:학술대회논문집
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    • 2004.08a
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    • pp.305-308
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    • 2004
  • We present a novel process for the ultra low temperature (<150$^{\circ}C$) polycrystalline silicon (ULTPS) TFT for the flexible display applications on the plastic substrate. The sequential lateral solidification (SLS) was used for the crystallization of the amorphous silicon film deposited by rf magnetron sputtering, resulting in high mobility polycrystalline silicon (poly-Si) film. The gate dielectric was composed of thin $SiO_2$ formed by plasma oxidation and $Al_2O_3$ deposited by plasma enhanced atomic layer deposition. The breakdown field of gate dielectric on poly-Si film showed above 6.3 MV/cm. Laser activation reduced the source/drain resistance below 200 ${\Omega}$/ㅁ for n layer and 400 ${\Omega}$/ㅁ for p layer. The fabricated ULTPS TFT shows excellent performance with mobilities of 114 $cm^2$/Vs (nMOS) and 42 $cm^2$/Vs (pMOS), on/off current ratios of 4.20${\times}10^6$ (nMOS) and 5.7${\times}10^5$ (PMOS).

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Carbon Monoxide as a Novel Central Pyrogenic Mediator

  • Jang, Choon-Gon;Lee, Seung-Jin;Yang, Sang-In;Kim, Jin-Hak;Sohn, Uy-Dong;Lee, Seok-Yong
    • Archives of Pharmacal Research
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    • v.25 no.3
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    • pp.343-348
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    • 2002
  • Carbon monoxide (CO) are produced by heme oxygenase (HO), and HO was detected in hypothalamus. However, the roles of CO produced in hypothalamus was not fully elucidated. So, we tested the effects of CO on body temperature because preoptic-anterior hypothalamus was known as the presumptive primary fever-producing site. CO-saturated aCSF ($4{\;}{\mu}l$, i.c.v.) and hemin ($10{\;}{\mu}g$, i.c.v.) elicited marked febrile response. Pretreatment with indomethacin completely inhibited CO- and hemin-induced fever. Zinc protoporphyrin-IX ($10{\;}{\mu}g$, i.c.v.) or ODQ ($50{\;}{\mu}g$, i.c.v.) partially reduced hemin-induced febrile response. Dibutyryl-cGMP ($100{\;}{\mu}g$, i.c.v.) produced profound febrile response and this febrile response was attenuated by indomethacin. These results indicate that endogenous CO may have a role as a pyrogenic mediator in CNS and CO-mediated pyresis is dependent on prostaglandin production and partially on activation of soluble guanylate cyclase.

Classification of Cordyceps Species Based on Protein Banding Pattern (단백질 분석을 기초로한 Cordyceps속 동충하초의 분류)

  • Sung, Jae-Mo;Lee, Hyun-Kyung;Yoo, Young-Jin;Choi, Young-Sang;Kim, Sang-Hee;Kim, Yong-Ook;Sung, Gi-Ho
    • The Korean Journal of Mycology
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    • v.26 no.1 s.84
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    • pp.1-7
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    • 1998
  • In order to find relationship within and between entomopathogenic species, analysis of protein band pattern in mycelia of 25 isolates was conducted by UPGMA. The results allowed differentiation of three groups on 85% similarity coefficient. Similarity coefficient within C. militaris was $0.787{\sim}1.000$, C. kyushuensis was 0.958-1.000 and C. pruinosa was 0.993-1.000. C210 and C298 isolates which had somewhat immersed perithecia, comparable to other C. militaris isolates, had 91% similarity. C108, C225-1 and C228 isolates pathogenic on Lepidopterous larvae had 89% similarity. Closely related species to C. militaris were C. kyushuensis and C. pruinosa. And similarity between C. pruinosa and C. kyushuensis was 88%. Similarity between C. bifusispora formed conidia on media and Paecilomyces tenuipes was 89%. C. scarabaeicola pathogenic specifically on adult Scarabaeidae had 82% similarity with above two species. C118 identified as C. militaris showed different protein banding patterns.

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Field Emission-Back Light Unit Fabricated Using Carbon Nanotube Emitter

  • Kim, H.S.;Lee, J.W.;Lee, S.K.;Lee, C.S.;Jung, K.W.;Lim, J.H.;Moon, J.W.;Hwang, M.I.;Kim, I.H.;Kim, Y.H.;Lee, B.G.;Choi, Y.C.;Seon, H.R.;Lee, S.J.;Park, J.H.
    • 한국정보디스플레이학회:학술대회논문집
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    • 2007.08a
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    • pp.277-280
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    • 2007
  • Field emission-back light unit (FE-BLU) was fabricated using carbon nanotube (CNT) emitter. Local dimming and local brightening techniques were achieved, which results in very high contrast ratio. In addition, the motion blur phenomenon, one of the serious problems of liquid crystal display (LCD) with cold cathode fluorescent lamp (CCFL)-BLU, was removed from LCD-TV by using FE-BLU.

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TCP/IP communication between LabVIEW and C language for Smart Grid Monitoring System (C 언어로 구현된 스마트 그리드 모니터링 시스템을 위한 LabVIEW와 C 언어의 TCP/IP통신)

  • Kim, Jueun;Choi, Nam-Sup;Yang, Hyo-Sik;Han, Byung-Moon
    • Proceedings of the KIPE Conference
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    • 2010.11a
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    • pp.359-360
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    • 2010
  • In smart grid system which uses photovoltaic system, fuel cells and so on, a program implemented with C language is used for control and measurement. When using programs implemented with C language GUI is difficult to watch control and monitor the smart grid system. But LabVIEW is a graphical programming language and it is easy to design GUI screen and to manage many variables such as real-time output of electric power including solar cell, wind power system and fuel cell. This paper suggests LabVIEW and C-language TCP/IP communication for smart grid monitoring system i mplemented with C-language.

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