• 제목/요약/키워드: City-State

검색결과 1,069건 처리시간 0.037초

광 파이버의 패러데이 효과를 이용한 전류측정용 프로브 설계 (Design of Current Probe Using Faraday Effect of Optical Fiber)

  • 강항식;김철주
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1995년도 하계학술대회 논문집 C
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    • pp.1278-1280
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    • 1995
  • A probe type fiber-optic sensing techique for electric current measurement is applied in this paper. The technique is based on the Faraday effect which meaning is that polarization state of light is rotated by magnetic field. In experiment, test wire is located at inside and outside of the probe to be measured. The experimental results prove not only linear property, but also polarization rotation property according to the distance from outside of probe.

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새로운 Annealing 방법 (A New Annealing Method.)

  • 홍순관;박선우;김철주
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1988년도 전기.전자공학 학술대회 논문집
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    • pp.367-369
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    • 1988
  • We suggest a new annealing method for stabilization of $Si-SiO_2$ interface state in MOS device using $NH_3$(10%) + $N_2$(90%) ambient gases. The annealing effect was examined through C-V characteristics, threshold voltage, effective mobility on channel, respectively. The experimental result show that the new method is available to improvement of MOS device characteristics.

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Nuclear Physics Methods for Determination of Radon in Water

  • Oyunchimeg, Ts.;Norov, N.;Khuukhenkhuu, G.
    • 한국의학물리학회지:의학물리
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    • 제13권1호
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    • pp.51-53
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    • 2002
  • The results of the measured specific activities of Rn-222 in sewerage and drinking water of Ulaanbaatar City, Mongolia using the HP-Ge gamma-spectrometer, solid state nuclear track detector and liquid scintillator, are compared. The specific radioactivity for the Rn-222 in water of Ulaanbaatar City ranged 10-250 Bk/l, with an average of 110 Bk/l.

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A Novel Fuzzy Morphology, Part II:Neural Network Implementation

  • Yonggwan Won;Lee, Bae-Ho
    • 한국지능시스템학회:학술대회논문집
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    • 한국퍼지및지능시스템학회 1995년도 추계학술대회 학술발표 논문집
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    • pp.52-58
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    • 1995
  • A shared-weight neural network that performed classification based on the features extracted with the fuzzy morphological operation is introduced. Learning rules for the structuring elements, degree of membership, and weighting factors are also precisely described. In application to handwritten digit recognition problem, the fuzzy morphological shared-weight neural network produced the results which are comparable to the state-of-art for this problem.

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미국의 승강기 인증·검사체계의 현황과 시사점 (A Current State and an Implication of an Elevator Certification and Inspection System in U.S.A.)

  • 김영진
    • 한국안전학회지
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    • 제32권3호
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    • pp.99-104
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    • 2017
  • An undeniable reason for elevator accidents is relevant to diverse defects of elevator itself including a fatal flaw in its managing system. In order to prevent and control disastrous accidents, Korean government established brand new department, Ministry of Public Safety and Security(MPSS) in 2014. For the field of elevator accidents, MPSS, hoping to take the lead, tries to reform related law and statutes. At this time, it is worthwhile to review foreign country's precedent to find out its applicable lesson. This study specially focuses on introducing U.S. legal system dealing with elevator safety area from the viewpoint of stressing the identity of local governments such as state, county, city etc. This article mainly reviews these four points: i) a current state of safety code, guide, standard for elevator in U.S.A. ii) an elevator parts certification system under ASME A.17.1, iii) an elevator inspection system in New York City, iv) an implication of an elevator certification and inspection system in U.S.A. to us.

Factors of Successful Development of Smart Cities

  • Iryna, Kalenyuk;Iryna, Uninets;Yevhen, Panchenko;Nataliia, Datsenko;Maxym, Bohun
    • International Journal of Computer Science & Network Security
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    • 제22권7호
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    • pp.21-28
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    • 2022
  • The increase in the number of large cities and the size of their population sharpens attention to the new role of cities as entities to ensure a high-quality, safe and modern life of citizens, which has become significantly more active in recent years. The rapid spread of smart cities in the modern world has actualized the issue of analyzing their success and assessing the role of various factors in this. Every success of a smart city is always the result of a unique combination of the most modern technologies, environmental and social initiatives, skillful and consistent management, as well as available human potential. The purpose of the article is to analyze the success factors of smart cities based on the generalization of the results of the most famous ratings. In order to identify the impact of various factors, primarily intellectual, on the success and leadership positions of smart cities, the following ratings were consistently analyzed: Smart City Index (SCI), City in Motion Index (CIMI), Global Power City Index (GPCI), Global Cities Index (GCI), Global Cities Outlook (GCO). They have a different list of indicators and main pillars (dimensions), but all ratings take into account aspects such as: governance, ICT, mobility, functionality, human capital, etc. The highest correlation coefficient, that is, the strongest linear relationship of the CIMI index was found with such factors as: Human capital, Economy, Governance and Technologies. Summarizing the results of the TOP 20 smart cities according to different ratings allowed us to confirm that the list of leaders is very similar in all ratings. Among those cities that are in the TOP-20 in all five indexes are: London, Sydney and Singapore. There are four indices: New York, Paris, Tokyo, Copenhagen, Berlin, Amsterdam, Melbourne. Achieving leadership positions in smart city rankings is always the result of a combination and synergy of certain factors, and first of all, it is the quality of human capital. The intensity and success of the use of information and communication technologies in locality management processes, city planning and improvement of the city's living conditions depend on it.

신 행정수도 건설의 논거와 과제 (Arguments and Some Issues to be Considered for Building the New Administration Capital City in Korea)

  • 안성호
    • 대한지리학회지
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    • 제38권2호
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    • pp.298-311
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    • 2003
  • 신 행정수도 건설은 지난 16대 대통령선거에서 노무현 후보가 당선됨으로써 참여정부의 핵심 국정과제로 부상했다. 그러나 신 행정수도 건설에 대한 회의론 내지 반대론을 제기하는 사람들이 적지 않다. 신 행정수도 건설의 실현가능성에 의문을 품는 사람들, 통일 이후 신 행정수도 건설을 고려하자는 신중론자들, 그리고 신 행정수도 건설이 수도권 문제 해결과 지역균형발전을 위한 적절한 정책수단이 아니라는 반대론자들이 있다. 이런 상황에서 참여정부의 일차적 당면과제는 회의론자들과 반대론자들을 설득해 신 행정수도 건설에 대한 국민적 지지기반을 넓히는 일이다. 이를 위해 본 논문은 신 행정수도 건설의 논거를 제시하고 이 공약의 성공적 이행을 위해 고려해야 할 몇 가지 과제들에 관해 논의한다. 먼저, 수도권 집중의 실태와 폐해를 살펴보고, '전국이 고루 잘 사는 나라'의 비전을 스위스 사례를 들어 제시한 다음. 역대 정부의 지역균형발전정책 및 지방분권정책의 성과를 점검한다. 이어 신 행정수도 건설의 의의가 '서울 존(尊) -지방 비(卑)' 의 서울주의 차별문화를 청산하고, 서울을 하나의 지방으로 인식시키는 국토평등화의 계기를 마련하며, '분권분산형 국가'와 '동북아 허브(Hub)국가' 건설을 추동하는 데 있음을 강조한다. 더불어 신 행정수도가 통일한국의 항구적 행정수도로 건설되어야 할 이유를 논변한다. 마지막으로, 신 행정수도 건설에 수반된 몇 가지 과제들. 즉. 국민의 동의 절차. 신 행정수도의 인구규모, 신 행정수도의 법적 지위, 신 행정수도 건설과 지방분권 및 지방혁신의 관계 등에 대한 필자의 견해를 밝힌다.