• Title/Summary/Keyword: conserved

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Study on the Stress Singularity of Interface Crack by using Boundary Element Method (경계요소법을 이용한 계면균열의 응력특이성에 관한 고찰)

  • 조종두;곽시형
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 1994.10a
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    • pp.837-842
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    • 1994
  • The boundary element method was used for studying singularities of an interface crack with contact zones. Because the contact zone size was extremely small in a tention field, a large number of Gaussian points were is used for numerical integration of the Kernels. In order to estimate the contact zone size, iteration method was used. The interface crack tips with contact zones showed no oscillatory behavior and J-integral values across the interface were conserved.

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The Conservation of an Woljung Wooden Bridege Structure (월정교지 출토 목재유물의 보존처리)

  • Lee, Chang-Geun;Kim, Ik-Joo;Kim, Sin-Guk
    • 보존과학연구
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    • s.13
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    • pp.9-13
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    • 1992
  • An Woljung wooden bridge structure, which assumde to has been built in the unification of shilla dynasty, was excavated at Nam-chun river basin inKyung-ju. As a result of primary investigation, the weigh loss was 70-80% and the volumetric shrinkage was up to 38% without any conservation. Between 1986 and1991, they were conserved by the two step PEG treatment at the Mokpo Conservation Institute for Maritime Archaeological Finds.

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Identification of Bak-like Protein cDNA (Bak-like 단백질을 code하는 cDNA의 동정)

  • 김진경
    • YAKHAK HOEJI
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    • v.45 no.4
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    • pp.426-430
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    • 2001
  • Cells are eliminated in a variety of physiological settings by apoptosis, a genetically encoded process of cellular suicide. Bak, a member of the Bcl-2 protein family, accelerates apoptosis by an unknown mechanism. We have found a novel cDNA encoding a 101 amino acid protein possessing a Bak-like in our full-length cDNA bank. Bak-like shares the conserved domains BHI and 2 with other proapoptotic proteins but lacks the BH3 domain. Bak-like is expressed in a wide variety of tissues. Like Bak, Bak-like gene product primarily enhances apoptotic cell death following an appropriate stimulus.

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SECONDARY STRUCTURE OF THE PANHANDLE RNA OF INFLUENZA VIRUS A STUDIED BY NMR SPECTROSCOPY

  • Cheong, Hae-Kap;Park, Byong-Seok;Chaejoon Cheong
    • Proceedings of the Korean Biophysical Society Conference
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    • 1996.07a
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    • pp.31-31
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    • 1996
  • The double-stranded panhandle structure of the influenza virus RNA is important for the replication, transcription and packaging into the virion of the vRNA. The solution structure of a 34-nucleotide-long RNA which contains the conserved panhandle sequences has been investigated by one- and two-dimensional NMR spectroscopies. (omitted)

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The Structural Characterization of the Putative DNA-Binding Protein BldB from Streptomyces Lividans

  • Ochiriin, Tsogbadrakh-Mishig;Kang, Sa-Ouk
    • Proceedings of the Korean Biophysical Society Conference
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    • 2002.06b
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    • pp.49-49
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    • 2002
  • Mutants blocked at the earliest stages of morphological development in Streptomyces species are called bld mutants. We have cloned bldB gene ORF from Slividans. Genomic Southern blot analysis for main strains S.lividans, S.seoulensis, S.coelicolor A3(2), and S.griseus indicated that bldB gene is conserved in all main Streptomyces strains.(omitted)

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The Visualization of Damage Spreading Method Using JAVA Applet (자바에플렛을 이용한 손상확산방법의 시각화)

  • Kwak, Wooseop
    • Journal of Integrative Natural Science
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    • v.1 no.1
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    • pp.36-40
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    • 2008
  • 본 논문은 자바 에플릿(Java applet)을 이용하여 보존모형과 비보존모형의 온도에 따른 손상확산(damage spreading)의 특성을 분석하였다. 보존모형인 아이징(Ising)모형과 비보존 모형인 격자기체(lattice gas) 및 Driven Diffusive System(DDS)을 다양한 전이확률(transition probability)을 사용하여 온도에 따라 물질내부에서 손상확산이 어떻게 발전하는지를 자바 에플릿 프로그램을 이용하여 시각화하여 손상확산을 명확히 이해하고자 하였다.

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Host Cell-Intrinsic Antiviral Defense Induced by Type I Interferons

  • Asano, Atsushi
    • Korean Journal of Agricultural Science
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    • v.35 no.2
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    • pp.177-182
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    • 2008
  • Type I Interferons (IFNs) are potent antiviral cytokines that modulate both innate immunity and adaptive immunity. Type I IFNs are immediately induced by viral infection, and stimulate production of a broad range of gene products such as double-stranded RNA-activated protein kinase (PKR), 2' 5'-oligoadenylate synthetase (OAS)/RNaseL and Mx GTPases. These proteins inhibit viral replication in host cells. Type I IFNs, in turn, lead to antiviral state at early phase of viral infection. We provide an overview of the knowledge of IFN-inducible antiviral proteins conserved in vertebrates.

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Study on the Analysis of Fire Propagation in Road Tunnels (도로터널의 화염전파해석에 관한 연구)

  • 권용일;유지오;이동호;권순석
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.12 no.6
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    • pp.616-622
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    • 2000
  • This paper concerns the application of smoke and fire spread to road tunnel fire problems. When a road tunnel is on fire. a fire protection system of road tunnel have to offer an adequate escape space to human. Therefore, this study carried out a simulation for predicting a spreading path of smoke and fire. The evolution of the flow field is simulated with the low Reynolds number k-$\varepsilon$ turbulent model and SIMPLE algorithm based on the finite volume method.

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Solution Structure of Neuropeptide $\gamma$ from Carassius auratus by NMR spectroscopy

  • Lee, Sangwon;Park, Namgyu;Kim, Yangmee
    • Proceedings of the Korean Biophysical Society Conference
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    • 1999.06a
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    • pp.31-31
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    • 1999
  • Neuropeptide ${\gamma}$ is a recently identified tachykinin family peptide which has conserved ammo acid sequence of -Phe-X-Gly-Leu-Met-NH2 in the C-terminal region, where X represents aromatic or hydrophobic residues. In this study, three-dimensional structure of neuropeptide ${\gamma}$ from goldfish Carassius auratus (G-NP${\gamma}$) was determined by NMR spectroscopy.(omitted)

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