• Title/Summary/Keyword: Seoul-City

검색결과 3,290건 처리시간 0.031초

배전케이블내 고분자 절연체의 절연성능에 미치는 불순물의 영향평가 (Evaluation of Effects of Impurities on Insulating Properties of Polymeric Insulator in Power Distribution Cable)

  • 조영신;심미자;김상욱
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1997년도 하계학술대회 논문집 C
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    • pp.1402-1404
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    • 1997
  • To evaluate the effects of impurities on insulating properties of polymeric insulator in high electric power distribution cable, OIT and OMT were measured. By using Eyring plot, the thermodynamic parameters of ${\Delta}H$ and ${\Delta}S$ could be obtained.

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REOXIDATION법을 이용한 Si WAFER의 HOLE TRAP의 제거 (Elimination of Hole Traps on Si Wafer using Reoxidation method)

  • 홍순관;주병권;김철주
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1987년도 전기.전자공학 학술대회 논문집(I)
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    • pp.433-435
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    • 1987
  • Thermal reoxidation was carried out to eliminate hole traps at the surface of Si wafer. As the result, the good surface state of wafer was obtained and hole traps were eliminate at the inversion layer. For the evaluation of reoxidation effects. MOS diode was fabricated and its C-Y curve was plotted.

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서울시 거주 가구의 주거입지 변화 패턴 (The Patterns of Residential Changes among Households in the City of Seoul)

  • 윤복자
    • 한국주거학회논문집
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    • 제8권2호
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    • pp.49-59
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    • 1997
  • The purpose of this study is to analyze Phenomenon of the residential movement and important factors in the city of Seoul. First, The patterns of residential location during 1975-1994 in terms of macro aspects are to be investigated. Second, Residential patterns among households based on the literature survey data in terms of micro aspects are to be indentified. Methodology applied to the study is regression analysis using 1975-1994statistical data and content analysis based on the literature survey. The results of this study are as follows : 1) The factors of residential movement in the city of Seoul are explained by the changes of the economic structure, residential environment, individual characteristics, and housing policy. That is. the development of transportation systems, the number of homeownership scheme holders, crime rates, increase of residential areas effect on the decrease of the population in the city center of Seoul 2) According to the income groups and resident characteristics, Residential location patterns are different in residential location choice and the scope of spatial migration.

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DSP칩과 PC를 이용한 근피로도 측정 (Muscle Fatigue Nlonitoring Using a DSP Chip and PC)

  • 조일준;이진;최영환;김성환
    • 대한의용생체공학회:의공학회지
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    • 제9권2호
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    • pp.211-214
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    • 1988
  • As a muscular contraction is sustained, the power spectrum of the myoelectric signal is compressed into lower frequencies. The median frequency appears to be the prefered parameters to monitor this compression. This paper describes a technique and a device which provide an estimate of the median frequency using a TMS32020 DSP chip and IBM PC for tracking of this parameter. Results obtained from myoelectric signal are presented and discussed.

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DSP칩과 PC를 이용한 근피로도 측정 (Muscle fatigue monitoring using a DSP chip and PC)

  • 조일준;이진;최영환;김성환
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 1988년도 한국자동제어학술회의논문집(국내학술편); 한국전력공사연수원, 서울; 21-22 Oct. 1988
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    • pp.714-717
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    • 1988
  • As a muscular contraction is sustained, the power spectrum of the myoelectric signal is compressed into lower frequencies. The median frequency appears to be the prefered parameters to monitor this compression. This paper describes a technique and a device which provide an estimate of the median frequency using a TMS32020 DSP chip and IBM PC for tracking of this parameter. Results obtained from myoelectric signal are presented and discussed.

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다중 게이트을 이용한 부분 공핍형 SOI MOSFET 특성에 관한 연구 (A Study on Partially-Depleted SOI MOSFET with Multi-gate)

  • 신경식;박윤권;이성준;김철주
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1997년도 하계학술대회 논문집 C
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    • pp.1286-1288
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    • 1997
  • In this study, partially-depleted SOI MOSFET with multi-gate was fabricated on p-type SIMOX(Seperation by Implanted Oxygen). As increase the number of its gate, increase the breakdown voltage. But kink effect was not affected by the number of its gate. However, it is known that the asymmetric gate structure reduce kink effect. So if asymmetric multi-gate applied to partially-depleted SOI MOSFET, it is expected that the breakdown voltage of SOI MOSET with asymmetric multi-gate is higher than that of SOI MOSFET with single gate and that kink effect is reduced by SOI MOSFET with asymmetric multi-gate.

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다양한 습식식각법을 이용한 (100), (110), (111) Si tip의 제작 (Fabrication of (100), (110), (111) Si Tips using Various Wet Etching Method)

  • 박흥우;주병권;고창기;홍순관;오명환;김철주
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1994년도 하계학술대회 논문집 C
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    • pp.1250-1253
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    • 1994
  • (100), (110) and (111) Si wafers are etched by isotropic etching method, anisotropic etching method using KOH etchant and EPW etchant and combined two-step etching method to compare the results. Isotopic etching method is effective in fabrication of wedge-shaped tips, especially (110) Si. Anisotropic etching method of (100) Si using EPW etchant can fabricate sharp cone-shaped tips and isotropic etching after anisotropic etching of (100) Si can fabricate wedge-shaped tips.

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서울시 도시형 버스의 추행패턴에 관한 연구 (A Study of Driving Pattern of City-bus in the City of Seoul)

  • 정남훈;이우택;선우명호;이영재;엄명도
    • 한국자동차공학회논문집
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    • 제10권2호
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    • pp.55-65
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    • 2002
  • Emission from road traffic is one of the major sources of air pollution, and provides some undesirable effects on the atmspheric environment and human health. In the city of Seoul, the higher portion of diesel vehicles runs compared with that of other countries. Emission from the diesel vehicles is much higher than that of other vehicles. In this study, the driving pattern of city-bus in Seoul is investigated through on-road vehicle test and compared with the test modes of other countries in order to examine appropriateness of the present test mode that is taken in our country.

근대화로 인한 묘지와 도시 사이의 거리 변화에 관한 연구 - 파리와 서울의 비교를 통해 - (A Study on the Change of Distance between the Cemetery and the City caused by Modernization - Through Comparative Analysis between Paris and Seoul -)

  • 기세호
    • 대한건축학회논문집:계획계
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    • 제34권5호
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    • pp.97-108
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    • 2018
  • "Death is the side of life which is turned away from us." The life of people in Seoul, however, is disconnected from death. Why? This article compares the historical changes in the cemetery disposition of Paris and Seoul to answer this question. The cemetery is always a meeting place between the living and the dead. In pre-modern cities, the cemetery was close to the people's daily life. However, the fundamental change of urban structure due to modernization has a great influence on the cemetery. With the advent of the train, the world has shrunk and the city has expanded unprecedentedly. In such a situation, the cemetery is expelled to the outside of the city. However, while Paris and Seoul share the same overall flow, they responded differently to the plans for the establishment of large-scale remote cemeteries. In Paris, the plan was canceled by citizens who value their relationship with the dead. On the other hand, Seoul was unable to manage the cemetery due to social confusion in 20th century. All cemeteries were expelled as industrialization began. As a result, there is no public cemetery or ossuary at present in Seoul. In Seoul, about 20 years ago however, a new kind of place for the dead began to appear. It is an ossuary attached to religious facilities. In other words, the current cemetery of Seoul is divided into two forms : the public cemetery, which is expelled from the city, and the private ossuary, which is attached to religious facilities built in the city.

서울 시청사 뜬구조 공법 (Floating & Underground Space Extension Method for New Seoul City Hall)

  • 최영길
    • 한국건축시공학회:학술대회논문집
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    • 한국건축시공학회 2013년도 춘계 학술논문 발표대회
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    • pp.254-255
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    • 2013
  • New Seoul city hall completed in 1926 is a registered historical building. The remodeling plan has been developed for the expansion after the review by the governmental agency. Based on the plan, a new city hall should be constructed behind the current city hall while the facade, the main lobby and the dorm structure of the existing building, A new construction method, FUSEM, has been developed for this mission for the safety of the historical structure.

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