• Title, Summary, Keyword: team system

Search Result 4,201, Processing Time 0.059 seconds

The Analysis of the Relationship Toward the MIS Project Members: The Prospective of IS Personality Typology (MIS프로젝트 구성원들간의 관계분석 : IS 유형이론을 중심으로)

  • Son, Dal-Ho;Kang, Moon-Sig
    • Asia pacific journal of information systems
    • /
    • v.7 no.2
    • /
    • pp.185-198
    • /
    • 1997
  • Recently the formation of the project team to construct a MIS system is generalized and the relationship of the user and the system personnel in the project team should be important factor in the effectiveness of the team. However, the systematic research about the personality typology of the user and the system personnel is scarcely verified. Considering this necessity, this study is, using the IS personality typology, tried to find the relationship of the user and the system personnel in the project team. One of Jung(1924)'s personality typology is introvert and extrovert, however, this typology is founa to have many facets related with personality category. Recently Ackoff(1996) has tried this category more meaningful, which are subjective-internalizer, subjective-externalizer objective-internalizer one objective-externalizer. Moreover, he has proposed the methodology which could find the assimilarity among the team members. On the basis of this typology, this research is attempted to find the difference of the characteristics of the user and the system personnel. Through this research, we can understand the difference of the characteristics of the user and the system personnel and this understanding can make help us operating the team more effectively. The result has suggested that the effectiveness of the team has relied on the personality type of the user and the system personnel. Especially the personality type of new member who will join into team is an important factor in the effectiveness of teaming. Therefore, when we have a new member into team, we have to consider the personality type of new member. Moreover, the personality type of the management is an another critical factor which should be considered.

  • PDF

Terahertz Time Domain Spectroscopy, T-Ray Imaging and Wireless Data Transfer Technologies

  • Paek, Mun-Cheol;Kwak, Min-Hwan;Kang, Seung-Beom;Kim, Sung-Il;Ryu, Han-Cheol;Choi, Sang-Kuk;Jeong, Se-Young;Kang, Dae-Won;Jun, Dong-Suk;Kang, Kwang-Yong
    • Journal of electromagnetic engineering and science
    • /
    • v.10 no.3
    • /
    • pp.158-165
    • /
    • 2010
  • This study reviewed terahertz technologies of time domain spectroscopy, T-ray imaging, and high rate wireless data transfer. The main topics of the terahertz research area were investigation of materials and package modules for terahertz wave generation and detection, and setup of the terahertz system for time domain spectroscopy(TDS), T-ray imaging and sub-THz wireless communication. In addition to Poly-GaAs film as a photoconductive switching antenna material, a table-top scale for the THz-TDS/imaging system and terahertz continuous wave(CW) generation systems for sub-THz data transfer and narrow band T-ray imaging were designed. Dielectric properties of ferroelectric BSTO($Ba_xSr_{1-x}TiO_3$) films and chalcogenide glass systems were characterized with the THz-TDS system at the THz frequency range. Package modules for terahertz wave transmitter/receiver(Tx/Rx) photoconductive antenna were developed.

A Study on the Design Procedure of the Eight Pole Magnetic Bearings for the Inner-rotor and the Outer-rotor Type

  • Lee, Jun-Ho;Park, Chan-Bae;Lee, Byung-Song;Lee, Su-Gil;Kim, Jae-Hee;Jung, Shin-Myung;Lee, Hyung-Woo
    • Journal of Electrical Engineering and Technology
    • /
    • v.8 no.6
    • /
    • pp.1424-1430
    • /
    • 2013
  • This paper presents design procedure of the magnetic bearings used for high-speed electric machines and flywheel energy storage systems. Magnetic bearing can be categorized by inner-rotor type and outer-rotor type according to the position of the rotary disc. These two types are applicable based on application environments such as application space, required attraction force, and controllability. Magnetic bearing is generally designed based on the ratio (geometrical coefficient or geometrical efficiency) of pole width to rotor journal radius but proper ratio is only decided by the analysis. This is the difficulty of the magnetic bearing design. In this paper, proper design technology of the inner-rotor type and outer-rotor-type eight pole magnetic bearings is introduced and compared with the FEM analysis results, which verifies the proposed design procedure is suitable to be applied to the design of the magnetic bearings for the industrial applications and flywheel energy storage system.

Design of DC-DC Converter to Charge and Discharge Ultra-Capacitor Modules for Wireless Trains (무가선 전동차용 울트라커패시터 모듈 충·방전을 위한 DC-DC 컨버터 설계)

  • Jo, Jeong-Min;Han, Young-Jae;Kim, Jae-Won;Lee, Jang-Moo;Kim, Gil-Dong
    • The Transactions of The Korean Institute of Electrical Engineers
    • /
    • v.64 no.12
    • /
    • pp.1776-1781
    • /
    • 2015
  • Electric power trains receive electric power from overhead cables via a pantograph system. Power collector system in trains increase the cross section of tunnel and require a massive coreless filter reactor in propulsion inverter because of the power disturbance by contact loss phenomenon of a train. In this paper we proposed a wireless train which can run to next station with charging energy of ultra-capacitor module block. We designed DC-DC converter to charge and discharge ultra-capacitor modules by using Next Train running test results and confirm the feasibility of the proposed system through simulation.

Development of PMSM Propulsion Control System for Electric Train (전동차용 PMSM 추진제어장치 개발)

  • Jeong, Man-Kyu;Suh, Jung-Woo;Kno, Ae-Suk;Kim, Dong-Myung;Chung, Eun-Sung
    • Proceedings of the KIPE Conference
    • /
    • /
    • pp.169-171
    • /
    • 2020
  • 지구온난화와 같은 환경적 문제점들로 인해 에너지 저감 및 고효율의 기술개발을 통한 탄소 저감이 주목을 받고 있다. 시대적 관심과 요구에 발맞춰 에너지 저감 효과가 있는 영구자석동기 전동기 등의 신기술을 철도차량에 적용하려는 연구가 활발히 진행되고 있다. PMSM을 철도차량에 적용하기 위해 추진제어장치는 인버터 한 대가 한 대의 전동기를 제어하는 1C1M 방식이어야 하며, 유지보수성과 안정성을 확보하기 위해 전동기와 인버터 사이를 전기적으로 분리해줄 수 있는 차단기가 필요하다. 또한 에너지 저감과 고효율을 달성하기 위해서 추진제어장치는 소형, 경량화 구조로 개발 되어야 한다.

  • PDF

Design and Implementation of Information Service System using the EPC on RFID Tag (전자 태그 기반 전자 상품 코드를 이용한 정보 서비스 시스템의 설계 및 구현)

  • Lee, Seung-ju;Lee, Myeong-Hwan;Yun, Yeo-Chang;Kim, Tae-Won;Park, Jong-ho;Shin, Young-hark
    • Proceedings of the Korea Information Processing Society Conference
    • /
    • /
    • pp.1136-1139
    • /
    • 2012
  • 본 연구에서는 EPCIS(전자상품코드 정보 서비스) 시스템의 요구사항인 추상화, 고성능, 확장성, 상호 운용성을 기반으로 EPCIS 시스템의 구조를 설계하고 구현한다. EPCIS 시스템의 추상화를 위해 기존에 존재하는 다양한 데이터 베이스 시스템과 상호 운용을 위한 공통 인터페이스를 구현하고 내부적으로 확장 질의 인터페이스, 공통 질의 언어를 가진다. 연속 질의 처리 시간을 감소 시키고 중복된 결과를 효과적으로 처리하기 위한 연속 질의 처리 모듈을 구현한다. 또한 RFID(전자 태그)의 이력 추적 질의의 고성능을 지원하기 위해 RFID 환경에 최적화된 색인 기술과 질의 처리를 위한 구성 요소(Component)를 추가하여 EPCIS 시스템의 고성능 질의 처리를 가능하게 한다. 또한 확장성을 위해 저장소(EPCIS Repository) 관리자를 구현하여 비즈니스 이벤트의 메타 데이터의 스키마를 정의하여 새로운 종류의 비즈니스 이벤트를 쉽게 등록하고 사용할 수 있도록 하였다. 또한 기업의 응용 시스템과 협력 기업간에 정보 교환을 위해서 EPC 글로벌에서 제시하는 웹 서비스를 지원하며 표준 데이터 형식인 확장성 생성 언어(XML)를 사용한다.

  • PDF

Experimental study on marine SCR system (선박용 SCR 시스템에 대한 실험적 연구)

  • NAM, Hong-Shik;HUR, Jae-Jung;SIN, Dong-Uk;RHO, Beom-Seuk;RYU, Ki-Tak;LEE, Yun-Hyung;KANG, Jeong-Gu;LEE, Sung-Woo
    • Journal of the Korean Society of Fisheries and Ocean Technology
    • /
    • v.56 no.2
    • /
    • pp.183-192
    • /
    • 2020
  • This study conducted the experiment for the development of the low pressure type SCR system. The experimental equipment of SCR system was installed, which was widely used as the nitrogen oxides abatement system, and the demonstration experiment was conducted to see that it met the Tier III regulation according to the IMO NOx Technical Code. The SCR system demonstration experiment was divided into three stages: SCR system component operation test, engine parameter test by engine load, and NOx abatement performance and ammonia slip verification test. The final performance of the SCR system was verified through analysis of NOx abatement performance and ammonia slip test results for each load variation.