• Title/Summary/Keyword: scale flexibility

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J2dpathway: A Global Metabolic Pathway Viewer with Node-Abstracting Features

  • Song, Eun-Ha;Ham, Seong-Il;Yang, San-Duk;Rhie, A-Rang;Park, Hyun-Seok;Lee, Sang-Ho
    • Genomics & Informatics
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    • v.6 no.2
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    • pp.68-71
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    • 2008
  • The static approach of representing metabolic pathway diagrams offers no flexibility. Thus, many systems adopt automatic graph layout techniques to visualize the topological architecture of pathways. There are weaknesses, however, because automatically drawn figures are generally difficult to understand. The problem becomes even more serious when we attempt to visualize all of the information in a single, big picture, which usually results in a confusing diagram. To provide a partial solution to this thorny issue, we propose J2dpathway, a metabolic pathway atlas viewer that has node-abstracting features.

Prediction of Epitope for Chikungunya Virus based on Bioinformatics (생물정보학기반 치쿤구니아 바이러스 항원결정부위의 예측)

  • Lee, Jihoo;Kim, Hak Yong
    • Proceedings of the Korea Contents Association Conference
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    • 2014.11a
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    • pp.55-56
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    • 2014
  • 치쿤구니아열은 치쿤구니아 바이러스(chikungu- nya virus)에 감염된 매개 모기(열대숲모기 및 흰줄숲모기)에 물려 감염되는 급성 열성 질환으로 잠복기가 짧고 치료제가 없기 때문에 조기 진단이 매우 중요한 급성전염병이다. 아열대기후로 진입하는 우리나라에서도 흰줄숲모기가 자주 발견되기 때문에 이 질병으로부터 결코 자유롭지가 않다. 치쿤구니아 바이러스 감염을 진단하기 위한 진단키트를 개발하기 위해 먼저 타깃 유전자 부위 선정이 매우 중요하다. 본 연구에서는 생명정보학을 기반으로 이 바이러스 만을 검출할 수 있는 epitope를 예측하고자 한다. 이 바이러스의 capsid 유전자를 찾고 유사한 바이러스의 유전자들과 multiple alignment를 수행하여 이 바이러스만이 가지고 있는 독특한 부위를 추출하였다. 이후 ProtScale Tool 프로그램으로 선택한 단백질의 친수성(hydrophilicity), 접근성(accessi- bility), 유연성(flexibility), 회전(${\beta}$-turns) 등의 특성을 모두 만족하는 부위를 선별하여 진단키트 제작을 위한 epitope를 제시하고자 한다.

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Flexible Mixed decomposition Method for Large Scale Linear Programs: -Integration of a Network of Process Models-

  • Ahn, Byong-Hun;Rhee, Seung-Kyu
    • Journal of the Korean Operations Research and Management Science Society
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    • v.11 no.2
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    • pp.37-50
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    • 1986
  • In combining dispersed optimization models, either primal or dual(or both) decomposition method widely used as an organizing device. Interpreting the methods economically, the concepts of price and resource-directive coordination are generally well accepted. Most of deomposition/ integration methods utilize either primal information of dual information, not both, from subsystems, while some authors have developed mixed decomposition approaches employing two master problems dealing primal and dual proposals separately. In this paper a hybrid decomposition method is introduced, where one hybrid master problem utilizes the underlying relationships between primal and dual information from each subsystem. The suggested method is well justified with respect to the flexibility in information flow pattern choice (some prices and other quantities) and to the compatibility of subdivision's optimum to the systemwide optimum, that is often lacking in conventional decomposition methods such as Dantzig-Wolfe's. A numerical example is also presented to illustrate the suggested approach.

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Research Trends in Powder Materials for Solution-based Transparent Conducting Electrode (용액기반 투명전극 분말 재료 연구 동향)

  • Koo, Bon-Ryul;Ahn, Hyo-Jin
    • Journal of Powder Materials
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    • v.24 no.2
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    • pp.153-163
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    • 2017
  • Transparent conducting electrodes (TCEs) are attracting considerable attention as an important component for emerging optoelectronic applications such as liquid crystal displays, touch panels, and solar cells owing to their attractive combination of low resistivity (<$10^{-3}{\Omega}cm$) and high transparency (>80%) in the visible region. The solution-based process has unique properties of an easy fabrication procedure, scalability, and low cost compared to the conventional vacuum-based process and may prove to be a useful process for fabricating TCEs for future optoelectronic applications demanding large scale and flexibility. In this paper, we focus on the introduction of a solution-based process for TCEs. In addition, we consider the powder materials used to fabricate solution-based TCEs and strategies to improve their transparent conducting properties.

Neighbor-Referenced Coordination of Multi-robot Formations (다중 로봇의 네이버기준 편대제어)

  • Lee, Geun-Ho;Chong, Nak-Young
    • The Journal of Korea Robotics Society
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    • v.3 no.2
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    • pp.106-111
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    • 2008
  • This paper presents a decentralized coordination for a small-scale mobile robot teams performing a task through cooperation. Robot teams are required to generate and maintain various geometric patterns adapting to an environment and/or a task in many cooperative applications. In particular, all robots must continue to strive toward achieving the team's mission even if some members fail to perform their role. Toward this end, given the number of robots in a team, an effective coordination is investigated for decentralized formation control strategies. Specifically, all members are required first to reach agreement on their coordinate system and have an identifier (ID) for role assignment in a self-organizing way. Then, employing IDs on individual robots within a common coordinate system, a decentralized neighbor-referenced formation control is realized to generate, keep, and switch between different geometric shapes. This approach is verified using an in-house simulator and physical mobile robots. We detail and evaluate the formation control approach, whose common features include self-organization, robustness, and flexibility.

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Flexible LCDs with Columnar Spacers for Fast Response and Wideviewing

  • Kim, Dong-Woo;Lim, Yong-Woon;Na, Jun-Hee;Yu, Chang-Jae;Lee, Sin-Doo
    • 한국정보디스플레이학회:학술대회논문집
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    • 2005.07a
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    • pp.407-410
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    • 2005
  • We report on a high speed flexible display based on a deformed helix ferroelectric liquid crystal (DHFLC) in a vertically aligned configuration. The mechanical stability of the flexible DHFLC display was achieved using a periodic array of columnar spacers formed directly on the top sides of in-plane electrodes by the photolithography technique. Several unique features of display performances such as flexibility, uniform alignment, fast response, and gray scale capability were obtained.

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Development of Soil-cement in Earth-block Materials

  • Wiwattanachang, N;Maneein, N;Parwong, T;Nummeesri, K
    • International Journal of Advanced Culture Technology
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    • v.3 no.1
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    • pp.78-85
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    • 2015
  • In Thailand, the electricity consumption is very high with the intention of reduce high temperature in the building. Since 2000, a lot of people paying attention to Green-Building concept. A similar concept is natural building, which is usually on a smaller scale and tends to focus on the use of natural materials that are available locally. Therefore, the Earth-Block (EAB) product is appropriated approach to reduce energy consumption in the buildings. The EAB is produced with environmentally friendly process, which does not release harmful pollution and effective cost. The main significant character is durable materials for building construction. This study aims to develop the new thermal insulation by using soil-cement with vetiver grass fibre. Additionally, it describes the innovative systems used in production of EAB materials by mixing the soil-cement with vetiver grass fibre. This paper reveals lowest costs, space configurations changing and greater design flexibility for constructing the building.

Market-based Modeling of Decentralized Multiple Project Management (분권화된 다중 프로젝트 관리를 위한 시장 기반 모델링)

  • Lee, Yong-Han
    • 한국IT서비스학회:학술대회논문집
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    • 2003.05a
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    • pp.577-583
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    • 2003
  • Due to the widespread availability of the internet, large-scale and dynamic distributed projects in industry are becoming popular. We present a distributed, collaborative, and adaptive control approach for decentralized multiple projects, which is one of representative project environments in modern e-enterprises. In this paper we deal with short term scheduling and rescheduling of resources, which are shared by multiple projects. We in specific, address the dynamic nature of the situation. We model this as a dynamic economy, where the multiple local markets are established and cleared over time trading resource time slots(goods). Local markets are modeled using a combinatorial auction mechanism. Due to the dynamic and distributed nature of economy, through our approach we can achieve higher levels of flexibility, scalability and adaptability.

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Earth Pressure of a Reinforced Retaining Wall During Construction (보강토의 시공중 토압변화)

  • 노한성;최영철
    • Proceedings of the Korean Geotechical Society Conference
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    • 2001.06a
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    • pp.13-19
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    • 2001
  • The use of reinforced soil have been increased due to it's cost effectiveness, flexibility and so on. In this study, a full-scale reinforced soil with rigid facing were constructed to investigate the soil pressure variation of reinforcing system. The results of soil pressure during backfill construction are described. The influence of facing stiffness on soil pressure is addressed. The results show that lateral earth pressures on the wall are active state during backfill. It is obtained that the lateral soil pressure highly depends on the installation condition of pressure cell and construction condition. Long-term measurement will be followed to verify the design assumptions with respect to the distribution of lateral stress on the facing.

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Wireless sensor network for decentralized damage detection of building structures

  • Park, Jong-Woong;Sim, Sung-Han;Jung, Hyung-Jo
    • Smart Structures and Systems
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    • v.12 no.3_4
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    • pp.399-414
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    • 2013
  • The smart sensor technology has opened new horizons for assessing and monitoring structural health of civil infrastructure. Smart sensor's unique features such as onboard computation, wireless communication, and cost effectiveness can enable a dense network of sensors that is essential for accurate assessment of structural health in large-scale civil structures. While most research efforts to date have been focused on realizing wireless smart sensor networks (WSSN) on bridge structures, relatively less attention is paid to applying this technology to buildings. This paper presents a decentralized damage detection using the WSSN for building structures. An existing flexibility-based damage detection method is extended to be used in the decentralized computing environment offered by the WSSN and implemented on MEMSIC's Imote2 smart sensor platform. Numerical simulation and laboratory experiment are conducted to validate the WSSN for decentralized damage detection of building structures.