• 제목/요약/키워드: Y-system

검색결과 237,908건 처리시간 0.128초

시스템적 접근에 의한 자동화컨테이너터미널 개발 과제 도출 (Finding Subjects for Automated Container Terminal Development by Systems Approach)

  • 박창호;노홍승;정희균
    • 한국항해항만학회:학술대회논문집
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    • 한국항해항만학회 1998년도 추계학술대회논문집:21세기에 대비한 지능형 통합항만관리
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    • pp.51-58
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    • 1998
  • This study is to define the Automated Container Terminal(ACT) and container terminal system. Also, we analyze the present condition of the container terminal system in Pusan port and its automation level by systems approach. And this paper aims at evaluating on the priority of R&D investment until the beginning of the second stage of New Pusan Port Project(2006). In this process we have considered 8 factors (cost, labor, area, time volume, reliability, safety, convenience) to analyze 6 subsystems. The priority order of R&D until target year by sub-systems is as follow : Cargo Handling System〉Transfer System〉Port Entry System〉Storage System(Distribution&Manufacturing System included)〉Inland Transport System〉Port Information System.

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임베디드 시스템을 이용한 인터넷 제어감시 시스템에 관한 연구 (A Study on the Internet Control and Monitoring System using an Embedded System)

  • Haeng-Choon Chun
    • Journal of Advanced Marine Engineering and Technology
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    • 제28권5호
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    • pp.811-817
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    • 2004
  • Recently embedded systems are widely used in various industrial fields as supervisory controller because they have many merits. One of merits seems to be that operating environment of embedded system is the same as development environment using PC. That makes developing and manufacturing period shorten and also proper time to market Most of all machinery have sequential control system for their maneuvering which is composed of relays. contacts. timers. etc. In this paper. software sequential control system is proposed to be able to replace hardware sequential control system by using embedded system A lot of merits by the software sequential control system can be expected in the respect of economic reproduction, intelligent technologies and utilities, And porting of LINUX operating system to embedded system is carried out and device drivers and interface boards for LINUX 05 are designed for controlling air compressor by software Internet remote control and monitoring system of air compressor is implemented with Java script and CGI for these purposes. The experiment for operating air compressor system is taken through internet networks. The results show that developed system can be used for real plant.

Grid Management System and Information System for Semantic Grid Middleware

  • Kim, Hyung-Lae;Han, Byong-John;Jeong, In-Yong;Jeong, Chang-Sung
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제4권6호
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    • pp.1080-1097
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    • 2010
  • Well organized and easy usable Grid management system is very important for executing various Grid applications and managing Grid computing environment. Moreover, information system which can support Grid management system by providing various Grid environment related information is also one of the most interesting issue in the Grid middleware system area. Effective cooperation between Grid management system and information system can make a novel Grid middleware system. Especially, service oriented architecture based Grid management system is flexible and extensible for providing various type of Grid services. Also, information system based on data mining process which comprises various different kinds of domains such as users, resources and applications can make Grid management system more precise and efficient. In this paper, we propose semantic Grid middleware system which is a combination of Grid management system and semantic information system.

철도화물수송체계의 현황과 개선방안 (A Situations and Improvements on the Rail Freight System)

  • 이용상
    • 한국철도학회논문집
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    • 제7권1호
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    • pp.37-48
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    • 2004
  • In this paper, I explain the situations and problems which are focused on the rail freight system. We have a many problems, which have been showed the long freight logistics time, and inadequate fare system. And rail freight system does not have a efficient marketing system, and unit load system. Therefore rail freight has been decreased modal share, which is estimated from 9.65% in 1995 to 6.25% in 2001(ton base). Recently, EU nations and America rail freight system reveals a good outcome, which keeps the balance in the black. The main factors which go into the black, is the enlargement the investment in rail freight and efficient management focusing on the unit load system, fare system, and personnel management. I suggest the several improvement ways, which will be helpful to advance the rail freight system. Fistly, I suggest the speed up the freight rail and efficient fare system. Secondly, I propose the unit load system and the regulation the truck focusing on curtailment of the social cost. Lastly, I make an overture of establishment the comprehensive logistics system.

Maglev(UTM-02) Brake System Change from Pneumatic Bake System to Hydraulic Brake System

  • Kim, Kinam;Hwang, Sungwoon;Jeon, Heekwon
    • International Journal of Railway
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    • 제8권1호
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    • pp.30-34
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    • 2015
  • The Maglev(UTM-02) project is leading by Korea Institute of Machinery & Materials and financially supported from the ministry of Commerce, Industry and Energy. The early development stagy of Maglev(UTM-02) was adopted the general urban railway pneumatic brake system due to the Korea domestic industrial environment. Currently there is two commercial operation Light Railway Train(LRT) system in Korea. One is U-Line in Uijungbu, and the other is Everline in Yongin. Both LRT systems are adopting high performance light weight hydraulic brake system. But those design and manufacturing core technology of the brake system is came from a major brake system companies located from aboard. Currently various studies have been continued to increase practical application and to improve competitiveness on performance for each sub-system of Maglev. Also in case of brake system, developing competitive hydraulic brake system is required. In this study, we have introduced the development process and performance evaluation of the new hydraulic brake system of Maglev.

건강증진을 위한 보건정보 (The Health Information for Health Promotion)

  • 김종갑;강성홍
    • 보건교육건강증진학회지
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    • 제10권1호
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    • pp.21-33
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    • 1993
  • Human health is affected by physical, social, cultural, economic, and political environment. To improve health status, of the people we need much support from social system and to make social supporting system effective for health promotion, we need health information. Because, the health information is basic to the social supporting system for health promotion. So, we should construct health information systems as follows : 1. Health information system for children 2. Health information system for families 3. Health information system for adolescents 4. Health information system for mothers 5. Health information system for workers 6. Health information system for physical handicapped 7. Health information system for elders

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실험적 모우드해석을 통한 4WD 자동차의 엔진마운트에 관한 연구 (A study on the Engine Mounting System of the 4WD Vehicle by Experimental Modal Analysis)

  • 사종성;김광식
    • 소음진동
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    • 제1권1호
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    • pp.39-43
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    • 1991
  • In this study, the design concept of engine for 4WD vehicle is established by the experimental modal analysis. First, the relationships between frame and power transmission system are considered. Second, the effect of additional system (Front propeller shaft and Exhaust system) on the power transmission system is evaluated. As a result, it is desirable that of frame and power transmission system is shifted by the additional system. This is cause by the moment of inertia of the additional system, because the center of gravity location of the additional system is far from that of the power transmission system.

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Embedded System Management

  • Ka Jin-Ho;Kim Jai-Hoon;Yoon Won-Sik;Jeong Dae-In
    • International Journal of Contents
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    • 제1권1호
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    • pp.16-20
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    • 2005
  • This paper proposes a frame work for embedded system management. The management system can automatically monitor and maintain the Internet connected embedded-systems such as sensor devices, set-top box, web-pad, information appliances, PDA, etc. Users can easily diagnose system state, resolve system problems, maintain and update applications, and back up user information using the management system. We implement prototype for the management system on embedded Linux system and High -available Linux system.

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미래전장 홀로닉 무기체계 개념 (Conceptual Study of the Future Holonic Weapon System)

  • 최진희;유삼현
    • 한국군사과학기술학회지
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    • 제3권1호
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    • pp.183-190
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    • 2000
  • The concept of Holon was suggested by A. Koestler in his paper(1967) "The Ghost in the Machine." It became one of the central concept of the Intelligent Manufacturing System. In this paper, a new system concept: Holonic Weapon System was introduced. HWS has the advantages of the holonic system and the system integration technique so that the future unmanned combat system should consider this concept.

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자기 시스템의 해석과 설계 (Design and Analysis of Electromagnetic System)

  • 박성욱;오진훈;윤시섭
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2005년도 학술대회 논문집 정보 및 제어부문
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    • pp.520-522
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    • 2005
  • This paper presents the design and analysis of the electromagnetic system such as jumping ring system. Also, we study the characteristics of dynamics for system with initial parameter. For the propose of system control,, first, we simulate the MATLAB tool solving coupled differential equations with electric parameter, inductance and mutual inductances. Therefore, we design a jumping ring system using design results, implement, and analyze the jumping ring system real situation. For the near time, we present a control process, and compare of real system and software technique.

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