• 제목/요약/키워드: applied potential

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시군별 홍수위험잠재능 유형화 및 특성분석 (A Study on Potential Flood Damage Classification and characteristic analysis)

  • 김수진;은상규;김성필;배승종
    • 농촌계획
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    • 제23권3호
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    • pp.21-36
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    • 2017

  • Climate change is intensifying storms and floods around the world. Where nature has been destroyed by development, communities are at risk from these intensified climate patterns. This study was to suggest a methodology for estimating flood vulnerability using Potential Flood Damage(PFD) concept and classify city/county about Potential Flood Damage(PFD) using various typology techniques. To evaluate the PFD at a spatial resolutions of city/county units, the 20 representative evaluation indexing factors were carefully selected for the three categories such as damage target(FDT), damage potential(FDP) and prevention ability(FPA). The three flood vulnerability indices of FDT, FDP and FPA were applied for the 167 cities and counties in Korea for the pattern classification of potential flood damage. Potential Flood Damage(PFD) was classified by using grouping analysis, decision tree analysis, and cluster analysis, and characteristics of each type were analyzed. It is expected that the suggested PFD can be utilized as the useful flood vulnerability index for more rational and practical risk management plans against flood damage.

  • https://doi.org/10.7851/Ksrp.2017.23.3.021 인용 PDF KSCI

해양구조물용 RE36강 용접부의 부식거동 및 기계적 특성에 미치는 용접후 열처리 효과에 관한 연구 (A Study on the Post-Weld Heat Treatment Effect Affecting Corrosion Behavior and Mechanical Property of Welding Part of RE36 Steel for Marine Structure)

  • 김성종;문경만
    • Journal of Welding and Joining
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    • 제19권1호
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    • pp.65-74
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    • 2001

  • A study on the corrosion behavior in case of As-welded and PWHT temperature 55$0^{\circ}C$ of welding part of RE36 steel for marine structure was investigated with parameters such as micro-Vickers hardness, corrosion potential measurement of weld metal(WM), base metal(BM) and heat affected zone(HAZ), both Al anode generating current and Al anode weight loss quantity under sacrificial anode cathodic protection conditions. And also we carried out slow strain rate test(SSRT) in order to research both limiting cathodic polarization potential for hydrogen embrittlement and optimum cathodic protection potential as well as mechanical properties by post-weld heat treatment(PWHT) effect. Hardness of HAZ was the highest among three parts(WM, BM and HAZ) and the highest galvanic corrosion susceptibility was HAZ. And the optimum cathodic polarization potential showing the best mechanical properties by SSRT method was from -770mV to -875mV(SCE). In analysis of SEM fractography, applied cathodic potential from -770mV to -875mV(SCE) it appeared dimple pattern with ductile fracture while it showed transgranular pattern (Q. C : quasicleavage) under -900mV(SCE). However it is suggested that limiting cathodic polarization potential indicating hydrogen embrittlement was under -900mV(SCE).

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Functions of Hepatitis B Virus- X Gene product

  • 윤영대
    • 한국응용약물학회:학술대회논문집
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    • 한국응용약물학회 1993년도 제1회 추계심포지움 and 제2회 생리분자과학연구센터워크숍
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    • pp.39-40
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    • 1993

  • Hepatitis B virus (HBV)is a member of the Hepadna virus family whose members share a characteristic virion structure and genome size, around 3.2kb in a paritially double-stranded form. The genome of HBV contains four overlapping open reading frames designated as P(polymerase). C(core), S(surface antigen)and X. The X gene has potential to encode 154 amino acids protein.

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