• Title/Summary/Keyword: Biophysical

검색결과 571건 처리시간 0.023초

Biophysical Characteristics of $Mg^{2+}$ Blockades in Ion Channels and Their Physiological Roles

  • Park, Chul-Seung
    • 한국생물물리학회:학술대회논문집
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    • 한국생물물리학회 1999년도 학술발표회 진행표 및 논문초록
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    • pp.26-27
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    • 1999
  • Ionic currents through many different cation channels are specifically reduced by internal and/or external $Mg^{2+}$ within a concentration range of physiological relevance. Although there are many ways for a divalent cation to reduce channel currents, the current blockade by directly binding to a conduction pore has been most well studied.(omitted)

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VALIDITY OF NDVI-BASED BIOPHYSICAL PARAMETERS FOR ECOSYSTEM MODELS

  • Lee, Kyu-Sung;Jang, Ki-Chang;Kim, Tae-Geun;Lee, Seung-Ho;Cho, Hyun-Guk
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2006년도 Proceedings of ISRS 2006 PORSEC Volume II
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    • pp.543-546
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    • 2006
  • NDVI has been very frequently used to estimate several biophysical parameters that are required for ecosystem models. Leaf area index (LAI), canopy closure, and biomass are among those biophysical parameters that are estimated by empirical relationship with NDVI. However, the type of remote sensing signals (raw DN value, at-sensor radiance, atmospherically corrected reflectance) used can vary the calculation of NDVI. In this study, we tried to attempt to compare the influence of NDVI linked with forest LAI for the watershed-scale ecosystem models to estimate evapotranspiration. Landsat ETM+ data were used to obtain various NDVI values over the study area in central Korea. The NDVI-based LAI and the resultant evapotranspiration estimation were greatly varied by the remote sensing signal applied.

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Networks for Protein Structure Prediction

  • 장병탁
    • 한국생물물리학회:학술대회논문집
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    • 한국생물물리학회 2002년도 제9회 학술 발표회 프로그램과 논문초록
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    • pp.13-13
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    • 2002
  • 기계학습(maching learning)은 경험을 통한 테이터 관측으로부터 스스로 성능을 향상할 수 있는 컴퓨터를 연구하는 인공지능(artificial intelligence)의 한 연구분야이다. 최근 들어 기계학습은 Bioinformatics 분야에서 생명과학 데이터마이닝을 위한 하나의 핵심기술로 부상하고 있다.(중략)

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Simulation Methods for Prediction of Membrane Protein Structure

  • Son, Hyeon-S.
    • 한국생물물리학회:학술대회논문집
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    • 한국생물물리학회 1998년도 학술발표회
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    • pp.10-10
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    • 1998
  • IMPs are important to cells in functions such as transport, energy transduction and signalling. Three dimensional molecular structures of such proteins at atomic level are needed to understand such processes. Prediction of such structures (and functions) is necessary especially because there are only a small number of membrane protein structures determined in atomic resolution.(omitted)

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Interaction for Phosphotransfer between N-Terminal Domain of Enzyme I and HPr of E. coli Phosphoenolpyruvate:Sugar Phosphotransferase System.

  • Seok, Yeong-Jae
    • 한국생물물리학회:학술대회논문집
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    • 한국생물물리학회 1998년도 학술발표회
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    • pp.12-12
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    • 1998
  • The interaction between the N-terminal domain of enzyme I (EIN) and the histidine-containing phosphocarrier protein HPr of the Escherichia coli phosphoenolpyruvate:sugar phosphotransferase system has been investigated by Isothermal Titration Calorimetry and heteronuclear magnetic resonance spectroscopy.(omitted)

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Regulation of Phosphoinositide-specific Phospholipase C-$\gamma$ Isozyme

  • Bae, Yun-Soo
    • 한국생물물리학회:학술대회논문집
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    • 한국생물물리학회 1998년도 학술발표회
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    • pp.17-17
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    • 1998
  • Although the activation mechanism of PLC-${\gamma}$ isozyme by protein tyrosine kinase (PTK) is well established, several lines of evidence indicate that PLC-${\gamma}$ isozymes can be activated directly by several lipid-derived second messengers In the absence of tyrosine phosphorylation.(omitted)

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Zinc Finger-DNA Recognition: Transcriptional Repression via Zinc Finger Design and Selection

  • Kim, Jin-Soo
    • 한국생물물리학회:학술대회논문집
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    • 한국생물물리학회 1998년도 학술발표회
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    • pp.11-11
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    • 1998
  • Zinc fingers of Cys$_2$His$_2$ class constitute one of the most common DNA binding motifs in eukaryotes. Unlike other DNA binding motifs, zinc finger proteins recognize very diverse DNA sites, and their sequence specificities can be systematically changed by phage display.(omitted)

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