• 제목/요약/키워드: Naju

검색결과 508건 처리시간 0.028초

Sasakian manifolds with cyclic-parallel ricci tensor

  • Lee, Sung-Baik;Kim, Nam-Gil;Han, Seung-Gook;Ahn, Seong-Soo
    • 대한수학회보
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    • 제33권2호
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    • pp.243-251
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    • 1996
  • In a Sasakian manifold, a C-Bochner curvature tensor is constructed from the Bochner curvature tensor in a Kaehlefian manifold by the fibering of Boothby-wang[2]. Many subjects for vanishing C-Bocher curvature tensor with constant scalar curvature were studied in [3], [6], [7], [9], [10], [11] and so on.

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Gibberellic acid를 생산하는 분리주 Gibberella sp. 의 배양학적 특성 (Screening of Giberella sp. from the Korean Paddy Field for the roduction of Gibberellic Acid and its Cultural Properties)

  • 오영준
    • 한국미생물·생명공학회지
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    • 제23권2호
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    • pp.119-122
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    • 1995
  • A different form from Gibberella fujikuroi was isolated from the paddy field of Naju area. The strain, designated as Y107, was identified as Gibberrella sp. based on its morphological, physiological, and biochemical characteristics. The highest production of Gibberellic acid by the strain was achieved in a fermentation medium containing corn starch, glucose, soybean oil, soybean meal, NH$_{4}$NO$_{3}$, K$_{2}$HPO$_{4}$, MgSO$_{4}$, and trace elements.

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On generic submanifolds of a complex projective space

  • Seong Baek Lee;Seung Gook Han;Nam Gil Kim;Seong Soo Ahn
    • 대한수학회논문집
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    • 제11권3호
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    • pp.743-756
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    • 1996
  • The purpose of this paper is to compute the covariant derivative of a shape operator of a generic submanifold of a complex space form without using the Green-Stoke's theorem. In particular, we classify complete generic submanifolds of a complex number space $C^m$ with parallel mean curvature vector satisfying a certain condition.

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A Conditional Unrelated Question Model with Quantitative Attribute

  • Lee, Gi Sung;Hong, Ki Hak
    • Communications for Statistical Applications and Methods
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    • 제8권3호
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    • pp.753-765
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    • 2001
  • We suggest a quantitative conditional unrelated question model that can be used in obtaining more sensitive information. For whom say "yes" about the less 7han sensitive question .B we ask only about the more sensitive variable X. We extend our model to two sample case when there is no information about the true mean of the unrelated variable Y. Finally we compare the efficiency of our model with that of Greenberg et al.′s.

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Periodic domain formation in $>LiNbO_3$ single crystals during growth

  • Park, Jong-Koen
    • 한국결정성장학회:학술대회논문집
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    • 한국결정성장학회 1998년도 PROCEEDINGS OF THE 14TH KACG TECHNICAL MEETING AND THE 5TH KOREA-JAPAN EMGS (ELECTRONIC MATERIALS GROWTH SYMPOSIUM)
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    • pp.23-26
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    • 1998
  • The domain formation phenomena of {{{{ { LiLbO}_{ 3} }}}} crystals was investigated and the method for the periodic domain formation in {{{{ { LiLbO}_{ 3} }}}} single crystals during growth was proposed in this study. The strees-induced domain formation mechanism was proposed and explained. The strong piezoelectric effect of{{{{ { LiLbO}_{ 3} }}}} at elevated temperature would be the direct driving force for the inversion of the tensile component of the internal stresses can inverse the original direction of the spontaneous polarization.

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태양광, 풍력발전 하이브리드시스템의 전기적 특성 (A study on Electrical Characteristics of Solar Cell - Wind Generator Hybrid system)

  • 홍창우;최용성;이경섭
    • 한국전기전자재료학회:학술대회논문집
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    • 한국전기전자재료학회 2010년도 하계학술대회 논문집
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    • pp.25-25
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    • 2010
  • In this paper, we have investigated the electrical characteristics for solar-cell and wind power generator hybrid system. The output of electricity for solar cell - wind generator hybrid system were investigated according to the weather conditions at Naju province.

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A New Mail Survey Method for Sensitive Character without Using Randomization Device

  • Ki Hak Hong
    • Communications for Statistical Applications and Methods
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    • 제4권3호
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    • pp.735-741
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    • 1997
  • In the present paper, we propose a new randomization device free mail survey method. The estimator based on proposed model is unbiased and more efficient than the estimator based on SIngh, Mangat and Singh model (SMS-model)(1993) when $\pi$<1/2, and more protective than SMS-model in view of the protection of privacy regardless of the values of $\pi$ and $\pi_Y$ only if we count the number of say 'Yes' from the respondents. However, If we consider the respondents that say 'No', the SMS-model is more protective than our model.

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Notes on Two Species of the Laboulbeniales from Tibet

  • Lee, Yong-Bo;Na, Young-Hee;Lim, Chae-Kyu
    • Mycobiology
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    • 제34권1호
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    • pp.41-43
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    • 2006
  • Two species of the Laboubeniales based on the Tibetan collections are described. They are new to the mycological flora of Tibet. Laboulbenia polyphaga found on several parts of Amara majuscula was characterized by having the outer appendages not ramified and simple. Peyritschiella protea obtained on the lower abdomen of Philonthus wuesthoffi, had two perithecia and two antheridia produced on the third layer of receptacle.