• 제목/요약/키워드: Korea railroad

검색결과 3,111건 처리시간 0.038초

철도종사원의 성격유형과 직무만족에 관한 실증적 연구 II (A Empirical Study II on the Relationship Between the Railway Employs' Personality Types and the Work Satisfaction)

  • 김충수;안준용
    • 한국철도학회논문집
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    • 제10권2호
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    • pp.161-166
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    • 2007
  • Recently, The business environment is very rapidly changed and complicated. Therefore, the companies are confront with the biggest difficulty. To overcome this difficulty, the management should be able to accomplish the human resources management and the efficient business management. Korea railroad industry has a close association with national life as it carries out public works based on its public nature as well as purses the corporate spirit. For that reason, Korea railroad industry has a great spin-off on national economy and exerts a tremendous impact on the improvement of productivity around the industries and the international competitiveness at aspect of efficiency resulting from business rationalization. Railroad system can be described as organic. Railroad Employs take a great role in this system. According the psychology and the Organization Behavior, the decision maker's personality and employee' work satisfaction have influence on performance. The purpose of this study is to examine the Railroad Employs' Personality and Work satisfaction which influence on the efficient business management.

기존선 속도향상을 위한 틸팅차량시스템 기술사양(안) 제시 연구 (Technical specification of Tilting train EMU for speed UP on existing lines)

  • 한성호;박광복;이수길;유원희;엄기영
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2002년도 하계학술대회 논문집 B
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    • pp.1298-1300
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    • 2002
  • This paper suggested that the technical specification of tilting train EMU for speed up on existing lines. High speed strategy of existing lines are the modification of railway system which are made on cant, lengths of transition curves, the catenary system and train system. Tilting technology is more useful a strategy for speed increases on existing lines with low investment needed. We performed a feasibility study which is considered out real track conditions and designed propulsion and braking system of tilting EMU system.

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Glass fiber cross-Al foil 차단막 두께에 따른 고무발포단열재 연소특성 (Combustion property comparison of rubber foam insulator by the variation of the glass fiber cross-Al foil thickness)

  • 조희기;이덕희;이철규;백민;정병철
    • 한국화재소방학회:학술대회논문집
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    • 한국화재소방학회 2005년도 춘계학술논문발표회 논문집
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    • pp.293-298
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    • 2005
  • Insulator is being used for material of railroad vehicles as a barrier of heat and noise. But it shows various fire properties in case of fire. In this study, we compared smoke density(Ds) values of rubber foams with the different thickness of glass fiber cross-Al foil according to the standard of ASTM E 662. The result showed that the insulator and barrier property played an important role in decreasing the value of smoke density

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A Simulator for the Performance Evaluation of the FieldBus(Train Communication Network)

  • Han, Seong-Ho;Lee, Su-Gil;Koo, Dong-Hea;Song, Yong-Soo;Han, Young-Jae;Choi, Seong-Hoon
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 2003년도 ICCAS
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    • pp.1745-1748
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    • 2003
  • This paper presents a Train Communication Network simulator (TCNS) that can be used to evaluate the performance of TCN. TCN was accepted as the standard of the protocol for the communication network in trains. We carry out some simulation tests using the TCNS to show practical uses of the simulator. Results of some simulation tests are also reported

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전기철도차량 고조파 전류 시험 (Harmonic Current Test of Electric High Speed Train)

  • 이태형;김주락;장동욱;이장무;박찬경
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2006년도 춘계학술대회 논문집 전기기기 및 에너지변환시스템부문
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    • pp.304-306
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    • 2006
  • 전기철도차량에서 사용한 부하전류는 귀환 회로인 궤도를 통해 변전소로 유입한다. 전기철도차량에서 사용하는 전력변환장치 때문에 부하전류에는 고조파가 함유되고 이 고조파 전류는 외부통신선에 영향을 주지 않아야 한다. 본 논문에서는 한국형 고속열차를 대상으로 고조파 전류를 측정하여 외부통신선 영향을 평가하는 등가방해전류로 환산하고 그 기준으로 평가한 결과를 소개한다.

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틸팅차량 전기장치 측정시스템 개발 (A Study on Measurement System Development for Electric Equipments of Tilting Train Express)

  • 한영재;김석원;김상수;김영국;구훈모
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2006년도 추계학술대회 논문집 전기기기 및 에너지변환시스템부문
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    • pp.250-252
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    • 2006
  • In this paper, we studied for the measurement system for on-line testing and evaluation of tilting train express(TTX). The measurement system is installed in each train for the performance measurement during the test run. It is composed of software part, hardware part and can measure various signals such as velocity, voltage, temperature. The software controls the hardware of the measurement system, performs the analysis and calculation of measurement data and acts as interface between users and the system hardware. The hardware is consisted of 7 DAMs(Data Acquisition Modules) and 6 monitoring modules.

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