• Title/Summary/Keyword: presents

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Maritime Development Trends in Mongolia

  • Boldbaatar, Tumenjargal;Yoon, Dae-Gwun
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2011.11a
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    • pp.183-185
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    • 2011
  • Mongolia is aiming at connect and expand global trade to third countries using Russia, China and East Asian ports. Also, trying to evolve infrastructure and super-frastructure in international maritime transportation. This paper presents maritime development trends in Mongolia and focuses on discussing the current situation of international maritime plan and points out some issues currently facing by the policy to develop promoting the country's maritime businesses. Finally, this paper presents some future directions for developing the maritime transportation in Mongolia.

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A Multi-Module Three-Loop Controlled Boost Converter for Distributed Power Applications (삼중 루우프 제어방식을 채택한 분산형 전력시스템을 위한 멀티 모듈 승압형 컨버터)

  • Cho, Byung-Cho;Han, Dong-Hoon
    • Proceedings of the KIEE Conference
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    • 1998.11c
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    • pp.1041-1045
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    • 1998
  • This paper presents the control design of a three-module boost converter with a two-stage output filter. An advanced three-loop control scheme is employed to the control design in order to obtain good dynamic performance of the converter at the presence of the secondary filter stage. The paper presents the control design, dynamic analysis and performance improvement with the three-loop control.

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SMP Forecasting Using Artificial Neural Networks (신경 회로망을 이용한 계통 한계비용 예측)

  • Lee, Jeong-Kyu;Kim, Min-Soo;Park, Jong-Bae;Shin, Joong-Rin
    • Proceedings of the KIEE Conference
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    • 2002.07a
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    • pp.389-391
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    • 2002
  • This paper presents the System Marginal Price(SMp) forecasting implementation using backpropagation Neural Networks in Competitive Electricity Market. SMP is very important term to seek the maximum profit to bidding participants. Demand and SMP that necessary data for training Neural Networks, supplied from Korea Power Exchange(KPX). Statistic analysis about predicted SMP presents a part of consideration in end of this paper.

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Statistical analysis of CB making current in large seals industrial load using EMTDC (EMTDC를 활용한 자가용 수용가 차단기 투입전류 확률해석)

  • Yoon, Jae-Young;Choi, Heung-Kwan
    • Proceedings of the KIEE Conference
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    • 2002.07a
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    • pp.67-69
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    • 2002
  • This paper presents the statistical analysis of the circuit breaker's making current in large sacle industrical loads using EMTDC. Typically, the making current includes DC components as the phase angel of making instances varies and represents as a instantaneous valus not rms. Consequently, in this paper, the statistical analysis results of making current and steady state fault current for typical industrial loads presents.

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Adaptive Control of Robot Manipulator using Neuvo-Fuzzy Controller

  • Park, Se-Jun;Yang, Seung-Hyuk;Yang, Tae-Kyu
    • 제어로봇시스템학회:학술대회논문집
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    • 2001.10a
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    • pp.161.4-161
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    • 2001
  • This paper presents adaptive control of robot manipulator using neuro-fuzzy controller Fuzzy logic is control incorrect system without correct mathematical modeling. And, neural network has learning ability, error interpolation ability of information distributed data processing, robustness for distortion and adaptive ability. To reduce the number of fuzzy rules of the FLS(fuzzy logic system), we consider the properties of robot dynamic. In fuzzy logic, speciality and optimization of rule-base creation using learning ability of neural network. This paper presents control of robot manipulator using neuro-fuzzy controller. In proposed controller, fuzzy input is trajectory following error and trajectory following error differential ...

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Feature Extraction Of Content-based image retrieval Using object Segmentation and HAQ algorithm (객체 분할과 HAQ 알고리즘을 이용한 내용 기반 영상 검색 특징 추출)

  • 김대일;홍종선;장혜경;김영호;강대성
    • Proceedings of the IEEK Conference
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    • 2003.11a
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    • pp.453-456
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    • 2003
  • Compared with other features of the image, color features are less sensitive to noise and background complication. Besides, this adding to object segmentation has more accuracy of image retrieval. This paper presents object segmentation and HAQ(Histogram Analysis and Quantization) algorithm approach to extract features(the object information and the characteristic colors) of an image. The empirical results shows that this method presents exactly spatial and color information of an image as image retrieval's feature.

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Recent Topics on Cavitation Research

  • Kato Hiroharu
    • Proceedings of the KSME Conference
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    • 2002.08a
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    • pp.1-4
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    • 2002
  • This article presents the unique characteristics of cavitation, those are very high pressure and very high temperature even in a very short time. Such the high-pressure causes the destruction of material, which sometimes brings a severe problem to fluid machinery. However, if we look the cavitation from the different direction, such the high pressure can be used to various applications. The author presents two examples of the utilization of cavitation recently done at the Toyo University. Those are 'dispersion of spilled oil' and 'killing planktons'.

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DC/DC Switching Converter Characteristics (DC/DC 스위칭 컨버터 특성)

  • 최영진;김상준;김태경
    • Proceedings of the IEEK Conference
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    • 1999.11a
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    • pp.743-746
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    • 1999
  • In this paper, Flyback type DC/DC Switching Converter was designed, analyzed and fabricated. Worst Case Analysis(WCA) was peformed with Mathcad program and presents circuit simulation results for the in-rush current limit circuit. The value of the maximum OFF voltage stress is 131.84V, it is less than device specification(200V). The switching frequency(nominal case) and duty cycle at the wont case analysis are 75KHz and 34.62%, respectively. The maximum in-rush current presents 0.5A Those results show a possibility for use in space

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Object Motion Detection and Tracking Based on Human Perception System (인간의 지각적인 시스템을 기반으로 한 연속된 영상 내에서의 움직임 영역 결정 및 추적)

  • 정미영;최석림
    • Proceedings of the IEEK Conference
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    • 2003.07e
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    • pp.2120-2123
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    • 2003
  • This paper presents the moving object detection and tracking algorithm using edge information base on human perceptual system The human visual system recognizes shapes and objects easily and rapidly. It's believed that perceptual organization plays on important role in human perception. It presents edge model(GCS) base on extracted feature by perceptual organization principal and extract edge information by definition of the edge model. Through such human perception system I have introduced the technique in which the computers would recognize the moving object from the edge information just like humans would recognize the moving object precisely.

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Development of Detail Design Software for High Speed Catenary System (고속전차선로 상세설계 자동차 소프트웨어 개발)

  • Kim, Joo-Rak;Lee, Ki-Won;Chang, Sang-Hoon
    • Proceedings of the KIEE Conference
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    • 2002.04a
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    • pp.257-259
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    • 2002
  • This study presents a development of DeCatS which is software to design high speed catenary system automatically. This is developed by KRRI with the support of KHSR. This paper presents a process of developing this S/W and a comparison with LEXCAT is demonstrated a preciseness of this.

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