• 제목/요약/키워드: GROW model

검색결과 421건 처리시간 0.024초

Dynamics of Pore Growth in Membranes and Membrane Stability

  • W. Sung;Park, P. J.
    • 한국생물물리학회:학술대회논문집
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    • 한국생물물리학회 1998년도 학술발표회
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    • pp.15-15
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    • 1998
  • Pores can form and grow in biomembranes because of factors such as thermal fluctuation, transmembrane electrical potential, and cellular environment. We propose a new statistical physics model of the pore growth treated as a non-Markovian stochastic process, with a free energy barrier and memory friction from the membrane matrix treated as a quasi-two-dimensional viscoelastic and dielectric fluid continuum.(omitted)

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Catching a growing giant: Discovery of a galaxy cluster in formation

  • Lee, Seong-Kook;Im, Myungshin;Park, Bomi;Hyun, Minhee;Paek, Insu
    • 천문학회보
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    • 제46권1호
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    • pp.33.3-34
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    • 2021
  • In LCDM universe, large, massive structures, like galaxy clusters, grow through the successive accretion/mergers of smaller structures. Therefore, at high redshift, unlike local, it is expected that there would be plenty of galaxy clusters which are still growing. Here, we report the discovery of a high-redshift (z~1) galaxy cluster which is in its active formation stage. This cluster is well connected to the large scale overdense environment and contains high fraction of star-forming galaxies, providing a good example supporting our previously suggested 'Web-feeding model'.

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Spanwise Growth of Vortex Structure in Wall Turbulence

  • Adrian, Ronald J.;Balachandar, S.;Liu, Z.C.
    • Journal of Mechanical Science and Technology
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    • 제15권12호
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    • pp.1741-1749
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    • 2001
  • Recent studies of the structure of wall turbulence have lead to the development of a conceptual model that validates and integrates many elements of previous models into a relatively simple picture based on self-assembling packets of hairpin vortex eddies. By continual spawning new hairpins the packets grow longer in the streamwise direction, and by mutual induction between adjacent hairpins the hairpins are strained so that they grow taller and wider as they age. The result is a characteristic growth angle in the streamwise-wall normal plane. The spanwise growth of individual packets implies that packets must either merge or pass through each other when they come into contact. Direct numerical simulations of the growth and interaction of spanwise adjacent hairpins shows that they merge by the vortex connection mechanism originally proposed by Wark and Nagib (199). In this mechanism the quasi-streamwise legs of two hairpins annihilate each other, by virtue of having opposite vorticity, leaving a new hairpin of approximately double the width of the individuals. PIV measurements in planes parallel to the wall support this picture. DNS of multiple hairpins shows how the spanwise scale doubles when the hairpins form an array.

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스마트팜 모니터링 시스템 개발 (Development of Smart Farm Monitoring System)

  • 김관형
    • 한국정보통신학회:학술대회논문집
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    • 한국정보통신학회 2021년도 춘계학술대회
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    • pp.287-288
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    • 2021
  • 전 세계적으로 식물공장에 대한 관심이 높아지고 있으며, 최근에는 도시환경에서도 작물을 재배할 수 있는 자동화된 관리시스템에 대한 연구가 진행되고 있다. 이러한 관리시스템의 발전은 ICT(Information Communications Technology) 기술의 발전으로 기반으로 하고 있으며, 식물의 생산성을 높이기 위하여 시설, 광원, 온도, 습도 및 자동화를 중심으로 연구되고 있으며, 재배 과정의 자동화에 대한 운영 표준화에 대한 연구가 진행되고 있다. 본 논문에서는 컨테이너 환경에서 수경인삼을 재배할 수 있는 테스트 배드를 구축하여 생육과정에 대한 환경을 모바일에서 모니터링하고 관리할 수 있는 모델을 제시하고자 한다.

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사회적기업 모형의 도시재생사업 -부산 경남을 중심으로- (City Restoration Applying Social Enterprise Model -Focused on Busan Gyeongnam Region-)

  • 이찬호;김혜연
    • 디지털융복합연구
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    • 제10권10호
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    • pp.197-202
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    • 2012
  • 본 연구에서는 미래 도시재생의 기본 방향과 정책수립, 거주민의 자족적 사회적기업의 기반마련에 대한 기초자료를 제공하기위해 시민들의 도시재생에 대한 인식을 분석하고, 도시재생사업에 대해 정리하고, 일자리 창출을 위한 도시재생과 사회적기업의 성공적 연계모형을 구축하기 위한 기초적 분석을 실시하였다.

ANALYTICAL AND NUMERICAL STUDY OF MODE INTERACTIONS IN SHOCK-INDUCED INTERFACIAL INSTABILITY

  • Sohn, Sung-Ik
    • 대한수학회논문집
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    • 제15권1호
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    • pp.155-172
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    • 2000
  • Mode interactions at Unstable fluid interfaces induced by a shock wave (Richtmyer-Meshkov Instability) are studied both analytically and numerically. The analytical approach is based on a potential flow model with source singularities in incompressible fluids of infinite density ratio. The potential flow model shows that a single bubble has a decaying growth rates at late time and an asymptotic constant radius. Bubble interactions, bubbles of different radii propagates with different velocities and the leading bubbles grow in size at the expense of their neighboring bubbles, are predicted by the potential flow model. This phenomenon is validated by full numerical simulations of the Richtmyer-Meshkov instability in compressible fluids for initial multi-frequency perturbations on the unstable interface.

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정보가전의 기술 수용에 관한 실증적 연구 - 양방향 TV를 중심으로 - (An Empircal Study on the Adoption of Information Appliances with a Focus on Interactive TV)

  • 유효식;최훈;김진우
    • Asia pacific journal of information systems
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    • 제12권2호
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    • pp.45-68
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    • 2002
  • Technology adoption for information appliance, which is expected to grow rapidly in the near future, is different from other technologies in that it is mainly used in the home environment when the customers haven't experienced it before. This paper finds important variables from prior research about technology adoption and develops a measurement model that fits for the information appliance. Pretest and pilot studies for the model is conducted in order to guarantee content validity, reliability, convergent validity and discriminant validity. Finally, LISREL analysis is used for finding out the causality among variables and testing for model fitness. The results indicate that three factors that influence behavioral intention are attitude, subjective norm and perceived behavioral control. Attitude is influenced by attitudinal belief, which consists of perceived usefulness, trialability, result demonstrability, image and enjoyment. Perceived behavioral control is influenced by control belief that consists of rapid change in technology, cost and ease of use. This paper ends with implications and limitations of study results.

철도건설기관의 조직문화혁신과 성과변화에 관한 사례연구 (A Case Study on the Cultural Innovation and Change in Performance of the Railway Construction Authority)

  • 류근옥;문대섭;김영우
    • 한국철도학회논문집
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    • 제10권1호
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    • pp.29-33
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    • 2007
  • This paper considers the case study of the change management and business innovation of the rail construction agency fer overcoming the crisis it faced in early stage. It will provide the suitable innovation techniques of each change stage. Also, each phase it evaluated the change degree of organization culture especially by the six box model of Weisbord and the Quinn's model. For the Period of Change, organization culture will grow about 10% and harmonize with 4 competitive organization culture; community, innovation, hierarchy, product. Only, it discovered that the difference of the current culture and rho organizer' wish is considerable by the Quinn's model. It wilt be able to describe the innovation fatigue which the organizers feel in the change of organization culture. For the successful innovation, it wilt have to be managed properly and the new innovation technique will have to be developed for solving.

정보기술(IT) 교육과정 모형의 설계 (Design of Information Technology Curriculum Model)

  • 이명호;한군희
    • 한국산학기술학회:학술대회논문집
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    • 한국산학기술학회 2004년도 춘계학술대회
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    • pp.143-147
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    • 2004
  • Digital technologies have largely changed our way of life in a time-space traditional paradigm. IT(Information Technology) has become the most primary measurement in evaluation of social value. The importance of If education continue to grow more and more. The intent of this work is to enforce the competitive power of IT education under open-education and to develop the special model of the practical IT curriculum for industry. The proposed curriculum is consisted of various modules which can be easily adapted to real world. So someone who finished IT curriculum can be re-educated the only necessary module with this developed model.

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