• Title/Summary/Keyword: Research laboratory

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Phylogenetic Analysis of Ruminant Theileria spp. from China Based on 28S Ribosomal RNA Gene

  • Gou, Huitian;Guan, Guiquan;Ma, Miling;Liu, Aihong;Liu, Zhijie;Xu, Zongke;Ren, Qiaoyun;Li, Youquan;Yang, Jifei;Chen, Ze;Yin, Hong;Luo, Jianxun
    • Parasites, Hosts and Diseases
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    • v.51 no.5
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    • pp.511-517
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    • 2013

  • Species identification using DNA sequences is the basis for DNA taxonomy. In this study, we sequenced the ribosomal large-subunit RNA gene sequences (3,037-3,061 bp) in length of 13 Chinese Theileria stocks that were infective to cattle and sheep. The complete 28S rRNA gene is relatively difficult to amplify and its conserved region is not important for phylogenetic study. Therefore, we selected the D2-D3 region from the complete 28S rRNA sequences for phylogenetic analysis. Our analyses of 28S rRNA gene sequences showed that the 28S rRNA was useful as a phylogenetic marker for analyzing the relationships among Theileria spp. in ruminants. In addition, the D2-D3 region was a short segment that could be used instead of the whole 28S rRNA sequence during the phylogenetic analysis of Theileria, and it may be an ideal DNA barcode.

  • https://doi.org/10.3347/kjp.2013.51.5.511 인용 PDF KSCI

Influence of constraint MgO deposition onto phosphors on luminance properties in AC Plasma Display Panels

  • Jeoung, Jin-Man;OH, P.Y.;Moon, M.W.;Lee, J.H.;Jeong, J.E.;Lee, H.J.;Han, Y.K.;Lee, S.B.;Jeong, S.H.;Yoo, C.K.;Yoo, N.R.;Choi, E.H.;Ko, B.D.
    • 한국정보디스플레이학회:학술대회논문집
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    • 2005.07b
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    • pp.1215-1217
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    • 2005

  • One of the important problems in recent AC-PDP technology is the image sticking. In this research, we have investigated the PDP cell with constraint deposition MgO on phosphor, the electrical and optical properties in the PDP cell were examined. Also, we have investigated the correlation with image sticking and degraded MgO protective layer, phosphor in AC-PDP. As a result, we measured the secondary electron emission coefficient ${\gamma}$, discharge characteristics and Brightness for the constraint degraded phosphor are compared with those of nondegraded phosphor.

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Demonstration of Time- and Wavelength-Division Multiplexed Passive Optical Network Based on VCSEL Array

  • Mun, Sil-Gu;Lee, Eun-Gu;Lee, Jie Hyun;Park, Heuk;Kang, Sae-Kyoung;Lee, Han Hyub;Kim, Kwangok;Doo, Kyeong-Hwan;Lee, Hyunjae;Chung, Hwan Seok;Lee, Jong Hyun;Lee, Sangsoo;Lee, Jyung Chan
    • ETRI Journal
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    • v.38 no.1
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    • pp.9-17
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    • 2016

  • We demonstrate a time- and wavelength-division multiplexed passive optical network system employing a vertical-cavity surface-emitting laser array-based optical line terminal transceiver and a tunable bidirectional optical subassembly-based optical network terminal transceiver. A packet error-free operation is achieved after a 40 km single-mode fiber bidirectional transmission. We also discuss an arrayed waveguide grating, a photo detector array based on complementary metal-oxide-semiconductor photonics technologies, and low-cost key devices for deployment in access networks.

  • https://doi.org/10.4218/etrij.16.0115.0044 인용 PDF KSCI