• Title/Summary/Keyword: End-of-life CRT

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A Study on Dry Cleaning Mechanism for End-of-Life CRT (폐CRT 건식 세정메커니즘에 관한 연구)

  • 송준엽;강재훈;이승우;이화조
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2002.05a
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    • pp.415-419
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    • 2002
  • In this study, we suggest a environmentally-conscious and dry cleaning process mechanism for the recycling of end-of-life CRT, and also develope a protype cleaning system to verify the faulty of the designed mechanism. This system accommodates the specifications of 14 ~ 32" end-of-life CRT. In experimental result, it is expected that the developed system improve the productivity up to 10% and decrease the loss rate of cleaning glass 3~4 times rather than the existing methods.hods.

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Environmentally-Conscious Cleaning System for End-of-Life CRT (환경친화적 폐브라운관 세정시스템 개발)

  • 송준엽;강재훈;허성필;이화조
    • Journal of the Korean Society for Precision Engineering
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    • v.20 no.1
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    • pp.126-134
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    • 2003
  • In this study, we suggest a environmentally-conscious and dry cleaning process mechanism for the more useful recycling of end-of-life CRT, and also develop a prototype cleaning system to verify the faulty of the designed mechanism. This system accommodates the specifications of 14∼32" end-of-life CRT. In experimental result, it is expected that the developed system improve the productivity up to 10% and decrease the loss rate of cleaning glass 3∼4 times than the glass blasting methods.

Molecular Cloning of a cDNA Encoding Putative Calreticulin from the Silkworm, Bombyx mori

  • Kim, Seong-Ryul;Lee, Kwang-Sik;Kim, Iksoo;Kang, Seok-Woo;Nho, Si-Kab;Sohn, Hung-Dae;Jin, Byung-Rae
    • International Journal of Industrial Entomology and Biomaterials
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    • v.6 no.1
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    • pp.93-97
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    • 2003
  • We describe here the cloning of a cDNA encoding putative calreticulin (CRT) from the silkworm, Bombyx mori. The CRT cDNA comprised of 1,194 bp encoding 398 amino acid residues. B. mori. CRT has a HDEL sequence at the end of the C-domain. The B. morl, CRT showed 88% protein sequence identity to the G. mellonella CRT, 71 % to A. aegypti CRT, and 63% to H. sapiens CRT, Phylogenetic analysis revealed that the deduced amino acid sequences of the B. mori CRT formed a highly inclusive subgroup with other insect CRTs. Northern blot analysis exhibited an expression of the B. mori CRT gene in the fat body, evidencing the fat body as a major site for CRT synthesis.

Restriction of Ca2+ deficiency-like symptoms by co-expressing a Ca2+ transporter and a Ca2+-binding protein in tomato (토마토에서 칼슘수송체와 칼슘결합단백질 공동발현에 의한 칼슘결핍유사증상의 완화)

  • Han, Jeung-Sul;Kang, Ho-Ju;Kim, Chang-Kil
    • Journal of Plant Biotechnology
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    • v.37 no.4
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    • pp.549-555
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    • 2010
  • Here we focused on tip-burn and blossom-end rot (BER) symptoms in the tomato plants expressing the constitutively active form of $Ca^{2+}/H^+$ antiporter (sCAX1) and/or a Ca-binding protein (calreticulin, CRT) genes during their whole growth period. Conclusively we demonstrated that CRT is able to suppress the tip-burn and BER symptoms that were induced by sCAX1. Under poor nutrition condition, tomato plants overexpressing sCAX1 showed severe necrotic collapses in both roots and shoot polar tissues, which are in accordance with $Ca^{2+}$ deficient symptoms frequently observed in an agricultural cultivation of tomato. Reciprocal grafting trials using sCAX1 and wild type plants revealed that the tip-burn symptom by sCAX1 overexpression is not caused by hindrance of $Ca^{2+}$ uptake from soil. We constructed CRT overexpressing transgenic tomatoes, and crossed them with sCAX1 transgenic plants to investigate the effects of CRT on the symptoms of sCAX1 transgenic plants. Co-expression of sCAX1 and CRT significantly suppressed the $Ca^{2+}$ deficient symptoms of sCAX1 transgenic plants. Those results suggest the model that $Ca^{2+}$ homeostasis disturbed by the overexpression of sCAX1 may be suppressed by the co-expression of CRT.