• 제목/요약/키워드: INC-extension

검색결과 85건 처리시간 0.025초

GRADED PRIMITIVE AND INC-EXTENSIONS

  • Hamdi, Haleh;Sahandi, Parviz
    • 대한수학회논문집
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    • 제33권2호
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    • pp.397-408
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    • 2018
  • It is well-known that quasi-$Pr{\ddot{u}}fer$ domains are characterized as those domains D, such that every extension of D inside its quotient field is a primitive extension and that primitive extensions are characterized in terms of INC-extensions. Let $R={\bigoplus}_{{\alpha}{{\in}}{\Gamma}}$ $R_{\alpha}$ be a graded integral domain graded by an arbitrary torsionless grading monoid ${\Gamma}$ and ${\star}$ be a semistar operation on R. The main purpose of this paper is to give new characterizations of gr-${\star}$-quasi-$Pr{\ddot{u}}fer$ domains in terms of graded primitive and INC-extensions. Applications include new characterizations of UMt-domains.

On/off Switch Mediated by Exo+ Polymerases: Experimental Analysis for Its Physiological and Technological Implications

  • Zhang, Jia;Chen, Lin-Ling;Guo, Zi-Fen;Peng, Cui-Ying;Liao, Duan-Fang;Li, Kai
    • BMB Reports
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    • 제36권6호
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    • pp.529-532
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    • 2003
  • The potential physiological role and technological application of the premature termination of DNA polymerization through the off-switch of exo+ polymerases were studied using 3' phosphorothioate-modified or unmodified primers with single base mismatch distal to the 3' terminus. With exonuclease-digestible unmodified primers, a gradient premature termination of DNA polymerization was observed when amplified with exo+ polymerases. With 3' allele specific phosphorothioate-modified primers, an efficient off-switch effect occurred in the discrimination of a single nucleotide polymorphism when directly using genomic DNA. Clearly, the off-switch of exo+ polymerases is useful in biomedical research.

암반 사면의 복합 파괴 메커니즘 규명 (Complex failure mechanism of rock slopes)

  • 윤운상;정의진;박성욱;최재원
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2006년도 추계 학술발표회
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    • pp.268-273
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    • 2006
  • Slope failures can be occurred by complex mechanism. In this cases, failures shows characteristics of complex failure mechanism during progressive mass movements. A case is a merged large slide with two sliding events triggered by slip on fault plane. Another case shows extension of failure area by sliding or subsidence at backyards of toppling areas. Generally, areas of progressive failures have wider than them of simple events.

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장일처리 광원의 종류 및 광조사 시간에 따른 페튜니아와 팬지의 개화 및 형태학적 반응 (Flowering and Morphological Responses of Petunia and Pansy as Influenced by Lamp Type and Lighting Period to Provide Long Days)

  • 오욱
    • 원예과학기술지
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    • 제34권2호
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    • pp.207-219
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    • 2016
  • 자연단일기에 장일식물의 개화를 촉진하기 일반적으로 사용되어 온 백열등(INC)이 낮은 에너지 효율 때문에 생산이 금지되었는데, 이를 대체할 수 있는 광원 중 하나는 컴팩트 형광등(CFL)이다. 본 연구에서는 몇 가지 장일식물에 대해 9시간 단일(SD) 조건의 $20^{\circ}C$ 온실에서 INC, CFL, 그리고 이 둘의 혼합광원(INC + CFL)을 이용하여 2시간(2-h) 또는 4시간(4-h) 야파(NI)나 6시간 명기연장(DE) 처리를 한 후 개화 및 형태학적 반응을 비교하였다. 전조 광원의 적색광(R):원적색광(FR) 비율은 각각 0.60, 8.46, 0.91이었으며, PPFD는 모두 $2.3{\pm}0.3{\mu}mol{\cdot}m^{-2}{\cdot}s^{-1}$로 맞추었고, 대조구로 9시간 단일처리(9-h SD)를 두었다. 처리 10주 후, 페튜니아 'Wave Purple'는 단일 하에서 전혀 개화하지 않았으며, 모든 장일처리에서는 100% 개화하였다. 개화는 INC 및 INC + CFL 하에서 FL보다 앞당겨졌으며, DE와 4-h NI가 2-h NI보다 개화를 더 촉진하였다. 페튜니아 'Single Dreams Red'는 처리 후 65일까지 모두 개화하였는데, DE와 4h-NI가 2-h NI보다 개화를 더 앞당겼고 INC와 INC + CFL에서 빨리 개화하였으며 INC 6-h DE에서 개화소요일수가 가장 짧았다. 초장은 페튜니아 두 품종 모두 개화가 빨랐던 INC 하에서 가장 길었고, INC + CFL는 중간 정도였다. 팬지 'Coiossus Yellow'와 'Delta Blue Blotch' 두 품종 모두 INC 처리가 FL보다 개화를 촉진시켰는데, 전조시간별 차이는 작게 나타났다. 줄기 신장도 INC가 촉진하였으나 광원 및 전조시간에 따른 차이는 페튜니아보다 작게 나타났다. 결국 R:FR이 낮은 INC나 INC + CFL 하에서 개화 및 줄기신장이 촉진되었으며 장일처리시간이 길수록 그 효과가 더 컸다. 결론적으로, INC의 대체 전조광원으로써 CFL도 페튜니아 및 팬지의 개화를 촉진하였고 줄기신장을 억제하였으나, 개화 촉진 효과는 INC에 비하여 작았다.

원자력발전소 케이블의 건전성 평가방법 및 수명관리방안에 관한 고찰 (A Study on Integrity Assessment and Lifetime Management of Cables in the Containment of the Nuclear Power Plant)

  • 이창수;최미령;진태은;임우상;한성흠
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2005년도 추계학술대회 논문집 전기설비전문위원
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    • pp.73-75
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    • 2005
  • A number of the power cables arc installed in the containment of the nuclear power plant. According to the IEEE Standard 835, the calculation of the temperature rise shows the operation possibility of power cables in the containment. In this paper, we expect the integrity of the power cables by using the calculation of the temperature rise and the development of the lifetime extension of the cables.

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지각된 유사성이 패션 브랜드 확장효과에 미치는 영향력에 있어서 소비자-브랜드 관계 질의 조절효과 (Influence of Perceived Similarity on Fashion Brand Extension -Exploring the Moderating Effect of Brand Relationship Quality-)

  • 김주현;이유리
    • 한국의류학회지
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    • 제35권7호
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    • pp.721-735
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    • 2011
  • This study: 1) identifies differences in consumers' perceived similarity of extended products to their parent product in terms of brand attributes, 2) identifies the influence of the perceived similarity on consumer's attitude toward and purchase intention of extended products (i.e., brand extension effect), and 3) examines the moderating effect of Brand Relationship Quality (BRQ) on brand extension effects. A survey questionnaire was distributed to a convenience sample of individuals aged 20-39. A total of 576 valid responses were used for the final analysis. The results showed that: 1) the consumers perceived more similarity in the extended products when the extended products maintain more consistent attributes with their parent product, 2) the higher the perceived similarity was then the higher the brand extension effect, and 3) brand relationship quality moderated the influence of perceived similarity on attitude and purchase intention. When consumers build a high relationship quality with a brand, then the brand extension effect is likely to be high regardless of the perceived similarity of the extended products. This study consequently has its own contribution in that it empirically examined the brand extension effect in the fashion field and evidenced the role of BRQ in brand extension.