• Title/Summary/Keyword: GEE

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Design of a Fault-tolerant Embedded Controllerfor Rail-way Signaling Systems

  • Cho, Yong-Gee;Lim, Jae-Sik
    • 제어로봇시스템학회:학술대회논문집
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    • 2002.10a
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    • pp.68.4-68
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    • 2002
  • $\textbullet$ This report presents an implementation a set of reusable software components which use of fault-tolerance embedded controller for railway signalling systems. These components can be used in real-time applications without application reprogramming. $\textbullet$ This library runs under VxWorks operating system and is oriented on real-time embedded systems. The library includes fault detection, fault containment, checkpointing and recovery components. $\textbullet$ The library enables to support high-speed response to fault occurrence in application software. Garbage collector together with VxWorks Watchdog provides both dead tasks detection and useless resources removing to avoid an overflow. Control flow...

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Design and Implementation Multimedia Transmission System based on Overlay Multicast (오버레이 멀티캐스트 기반 멀티미디어 전송 시스템 설계 및 구현)

  • Im, dong-gee;Kang, mi-young;Nam, ji-seung
    • Proceedings of the Korea Contents Association Conference
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    • 2010.05a
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    • pp.411-413
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    • 2010
  • 오버레이 멀티캐스트 트리 구성 알고리즘과 멀티미디어 스트림 중계 전송 모듈 설계하고 방송 소스 획득 및 멀티미디어 스트림을 렌더하기 위해 VLC(Video Lan Client) API를 이용하여 초고속 광 인터넷망에서 오버레이 멀티캐스트 기반 실시간 HDTV급 방송 서비스 시스템을 구현하였다.

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Use of Generalized Linear Mixed Model for Pest Density in Repeated Measurement Data

  • Park, Heung-Sun;Cho, Ki-Jong
    • Proceedings of the Korean Statistical Society Conference
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    • 2003.05a
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    • pp.69-74
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    • 2003
  • The estimation of pest density is a prime concern of Integrated Pest Management (IPM) because the success of artificial intervention such as spraying pestcides or natural enemies depends on pest density. Also, the spatial pattern of pest population within plants or plots has been studies in various ways. In this study, we applied generalized linear mixed model to Tetranychus urticae Koch , two-spotted spider mite count in glasshouse grown roses. For this analysis, the subject-specific as well as pupulation-averaged approaches are used.

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Analysis of the Cancellation Performance of a linearization loop

  • Kang, Sang-Gee;Yi, Hui-Min;Hong, Sung-Yong
    • Proceedings of the Korea Electromagnetic Engineering Society Conference
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    • 2003.11a
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    • pp.183-187
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    • 2003
  • The expression for the effects of an amplitude imbalance, a phase imbalance and a delay mismatch on the characteristics of a linearization loop in feedforward amplifiers is derived and analyzed. The simulation results are compared with the results obtained by means of using a commercial simulation tool and the exact agreement is reported.

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A Study on the development of facility layout using practical constraints (현실제약조건을 이용한 설비배치안 개발 방법 연구)

  • Moon, Gee-Ju
    • Journal of Korean Institute of Industrial Engineers
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    • v.19 no.1
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    • pp.31-38
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    • 1993
  • This paper presents a possible methodology to develop a facility layout using practical constraints. Those factors considered in the system are not only used for the evaluation of layout but also for the search to solution on the design process. Necessarily, this method develops practically feasible solutions with less iterations since the infeasible alternative layouts are rejected by the practical constraints before evolutions. The suggested method is implemented in FORTRAN for experimental purposes and the results are discussed in detail.

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