• Title/Summary/Keyword: dN/dS

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HOLOMORPHIC FUNCTIONS WITH POSITIVE REAL PART ON COMPLETE CIRCULAR DOMAINS

  • Hans, Kyong T.
    • Bulletin of the Korean Mathematical Society
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    • v.20 no.1
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    • pp.15-25
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    • 1983
  • The main purpose of the present paper is to generalize the results obtained by A. Hindmarsh in [7] to the holomorphic functions with non-negative real part defined on a complete circular domain D in certain class D in the complex euclidean space $C^{n}$. As described in .cint.2, D includes the bounded symmetric domains.s.

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3D-QSAR Studies of 3,5-disubstituted Quinolines Inhibitors of c-Jun N-terminal Kinase-3

  • Madhavan, Thirumurthy
    • Journal of Integrative Natural Science
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    • v.4 no.3
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    • pp.216-221
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    • 2011
  • c-Jun N-terminal kinase-3 (JNK-3) has been shown to mediate neuronal apoptosis and make the promising therapeutic target for neurodegenerative diseases such as Parkinson's disease, Alzheimer's disease, and other CNS disorders. In order to better understand the structural and chemical features of JNK-3, comparative molecular field analysis (CoMFA) was performed on a series of 3,5-disubstituted quinolines derivatives. The best predictions were obtained CoMFA model ($q^2$=0.707, $r^2$=0.972) and the statistical parameters from the generated 3D-QSAR models were indicated that the data are well fitted and have high predictive ability. The resulting contour map from 3D-QSAR models might be helpful to design novel and more potent JNK3 derivatives.

High-resolution Shallow Marine Seismic Survey by Using a Multi-channel Seismic System (다중채널을 이용한 천해저 고해상 해양 탄성파탐사)

  • Kim, Hyun-Do;Kim, Jin-Hoo
    • Proceedings of the Korean Society of Marine Engineers Conference
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    • 2005.06a
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    • pp.757-763
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    • 2005
  • A multi-channel seismic system has been developed and applied for bedrock mapping in near shore environment. The system is composed of an analog signal processor and an A/D converter installed on the computer, and a streamer with the group interval of 5 meters. The system is accomplished with a data acquisition program which controls the system and a data processing software. With the PC-based shallow marine seismic survey system high-resolution 2-D marine seismic profiles which have high S/N ratios can be obtained after appropriate data processing.

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A Study on the Surface Flashover Characteristics in Gap change of Different Insulation Source (이종절연재하의 갭 변화에 따른 연면방전 특성)

  • Lee, J.H.;Choi, Y.K.;Yoon, D.H.;Choi, S.T.;Pack, W.Z.;Lee, K.S.
    • Proceedings of the Korean Institute of IIIuminating and Electrical Installation Engineers Conference
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    • 2009.05a
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    • pp.273-276
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    • 2009
  • 본 연구는 Knife형 전극을 사용하여 이종절연재하의 갭 변화에 따른 연면방전 특성을 연구할 목적으로 교류고전압 인가 시 압력(P), 전극간거리(d) 및 사용된 가스의 변화에 따른 절연파괴특성을 연구하였다. 본 연구를 통해 챔버 내의 P와 d가 증가할수록 $SF_6$, I-Air, Dry-Air 및 순수 $N_2$는 파센의 법칙에 일치하여 절연파괴특성이 비례 증가하는 것을 확인했다. 그리고 $N_2:O_2$혼합가스 중 특정 비율에서는 P에 대해선 비선형적으로, d에 대해선 선형적으로 증가함을 확인했다.

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The Research of Fatigue-Crack Initiation and Propagation for S35C Steel (S35C강의 피로균열 발생 및 진전에 관한 연구)

  • 진영준
    • Journal of the Korean Society of Safety
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    • v.16 no.1
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    • pp.31-36
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    • 2001
  • Surface crack growth characteristics and influence of the stress amplitude in rotary bending fatigue test were evaluated for annealed S35C steel, and than fractal dimensions of fatigue crack paths estimated using the box counting method. The following results that will be helpful to understand the fatigue crack growth mechanism were obtained. (1) Crack growth rate ds/dN and db/dN (s : half crack length at the surface crack, b : crack depth) depended on stress amplitude (${\Delta}{\sigma}/2$), stress intensity factor range (${\Delta}K_A, {\Delta}K_C$) and crack length. (2) At the effect area of 0.3 mm hole notch (s<0.5 mm) crack growth rate did not depend on these factors. (3) The fractal dimensions (D) increased with stress amplitude (${\Delta}{\sigma}/2$) but decreased with cyclic number.

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Study on Color Characteristics of a Dark State in the In-Plane Switching (IPS)Liquid Crystal Cell

  • Jung, B.S.;Baik, I.S.;Song, I.S.;Lee, S.H.;Kim, D.S.;Kim, K.J.;Ahn, B.C.
    • 한국정보디스플레이학회:학술대회논문집
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    • 2005.07a
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    • pp.453-456
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    • 2005
  • Color characteristics of a dark state in the IPS-mode depending on viewing direction have been studied. IPS-mode is having a little variation of $d{\Delta}n$ with viewing angle since the LC rotates in plane. However, this mode shows asymmetric light leakage and color characteristics with viewing angle in a dark state. This drawback can be overcome by optimized retardation value of TAC film, pre-tilt angle & $d{\Delta}n$ of LC.

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