• 제목/요약/키워드: Cities

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딥러닝 시티: 스마트 시티의 빅데이터 분석 프레임워크 제안 (Deep Learning City: A Big Data Analytics Framework for Smart Cities)

  • 김화종
    • 정보화정책
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    • 제24권4호
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    • pp.79-92
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    • 2017
  • 도시 기능이 복합적으로 발전함에 따라 스마트 시티에 대한 관심이 높아지고 있다. 스마트 시티란 정보통신기술을 활용하여 교통, 안전, 복지, 생활 등 도시 문제를 효과적으로 해결하는 것을 말한다. 최근 세계 각국은 빅데이터, 사물인터넷, 인공지능 기술을 스마트 시티에 도입하는 시도를 하고 있으나 종합적인 도시 서비스로는 발전하지 못하고 있다. 본 논문에서는 국내외 스마트 시티 추진 현황을 살펴보고 핵심 문제로 부각된, 데이터 공유문제, 서비스 호환성 문제를 해결하는 방안을 제시하였다. 이를 위해 딥러닝 기술을 스마트 시티 서비스에 접목한 "딥러닝 시티 프레임워크"를 제안하고 도시 여러 영역의 시공간 데이터를 안전하게 공유하고 여러 도시의 학습 데이터를 융합하는 새로운 스마트 시티 추진 전략을 제시하였다.

Atmospheric Behaviors of Polycyclic Aromatic Hydrocarbons and Nitropolycyclic Aromatic Hydrocarbons in East Asia

  • Hayakawa, Kazuichi;Tang, Ning;Kameda, Takayuki;Toriba, Akira
    • Asian Journal of Atmospheric Environment
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    • 제1권1호
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    • pp.19-27
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    • 2007
  • Hazardous polycyclic aromatic hydrocarbons (PAHs) and nitropolycyclic aromatic hydrocarbons (NPAHs) are mainly originated from imperfect combustion of fossil fuels such as petroleum and coal. The consumptions of not only petroleum but also coal have been increasing in the East Asian countries. This review describes the result of international collaboration research concerning characteristics and major contributors of atmospheric PAHs and NPAHs in cities in Japan, Korea, China and Russia. We collected airborne particulates in ten cities in the above countries and six PAHs and eleven NPAHs were determined by HPLC methods using fluorescence and chemiluminescence detections. The total PAH concentrations were much higher in Chinese cities (Fushun, Tieling, Shenyang and Beijing) than those in other cities (Vladivostok, Busan, Kanazawa, Kitakyushu, Sapporo and Tokyo). The total NPAH concentrations were also higher in Chinese cities than those in the other cities. The [NPAH]/[corresponding PAH] ratios are much larger in diesel-engine exhaust particulates than those in coal-burning particulates. The [1-nitropyrene]/[pyrene] ratio of airborne particulates was much smaller in the four Chinese cities, suggesting that coal combustion systems such as coal heaters were the main contributors. On the other hand, the ratios were larger in Korean and Japanese cities, suggesting the large contribution of diesel-engine vehicles.

지방정부의 지속가능도시를 위한 정책적 노력이 도시 내 CO2 배출량에 미치는 영향 - 미국 도시들을 사례로 - (Impact of municipal sustainability policy efforts on citywide CO2 emissions - Case study of cities in the USA -)

  • 박진한;김송이
    • 국토계획
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    • 제53권6호
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    • pp.87-99
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    • 2018
  • The purpose of this study is to analyze the impact of municipal sustainability policy efforts on citywide $CO_2$ emissions. 25 cities in the U.S.A., which offer data on $CO_2$ emissions and are included in the top 50 largest cities in the U.S.A. according to its estimated population, were selected as study cities. This study utilizes the Sustainable Cities Seriously Index of Portney and selects data for the index at the city level. For analysis, this study employs correlation analysis, and OLS regression analysis. The results show that each city has around 30 sustainability policies and emits $12.76tCO_2$ per year on average. In addition, when the number of sustainability policies increases by one, the amount of $CO_2$ per capita decreases by $0.7tCO_2$. This means that the more cities employ sustainability policies, the less $CO_2$ those cities emit. The results of this study support the idea that active efforts on behalf of municipal governments toward the development of sustainability policies are needed to handle citywide $CO_2$ emissions.

스마트관광의 경제적 지속성을 위한 스마트관광 체험의 지불가치 추정: CVM을 이용하여 (Estimating the WTP of Smart Tourism Experience for Economic Persistence of Smart Tourism Using a Contingent Valuation Method)

  • 정희정;구철모;정남호
    • 지식경영연구
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    • 제20권1호
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    • pp.215-230
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    • 2019
  • Numerous city problems have arisen in some tourist cities as tourists enter the city beyond the limits of its capacity. As an alternative to this problem, the discussion of smart tourism cities has led many cities to pursue urban planning with the aim of transforming them into smart tourism cities. Therefore, the present study attempted to discuss the city self-reliance that smart tourism cities need to solve a number of problems and grow as a happy city, both residents and tourists, who are the ultimate goal in the long-term goals. More specifically, this study aims to provide basic data for the economic growth of cities that are most fundamental in city's self-reliance by assessing the economic value of smart tourism. To achieve this research purpose, the economic value of smart tourism was estimated using the Contingent Valuation Method (CVM), and the results showed that each person is willing to pay 220,709 won. This is about 10,000 won higher than the 211,163 won announced by the National Travel Survey in 2017, which is estimated to be of higher economic value when recognized as smart tourism. On the basis of these results, this study provided basic policy data in promoting smart tourism cities as well as expanding understanding of smart tourism.

Cluster analysis of city-level carbon mitigation in South Korea

  • Zhuo Li
    • 한국컴퓨터정보학회논문지
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    • 제28권7호
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    • pp.189-198
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    • 2023
  • 최근 지구온난화로 인한 폭염, 태풍, 폭설 등 기후변화를 급증하고 있다. 미국 뉴욕에서 개최된 제 25차 '기후변화 당사국총회(COP25)'에 따른 세계 각국은 '탄소중립' 달성하기 위한 협상을 진행했다. 도시는 경제발전뿐만 아니라 탄소중립 과정에서도 중요한 역할을 수행한다. 본 연구는 이산화탄소와 관계되는 경제요인 및 환경요인을 고려하여 엘보우 규칙 (Elbow method) 과 K-means 군집 알고리즘을 활용하여 한국 63개 도시의 탄소배출 현황을 분석하였다. 연구결과에 따른 한국 도시는 기술집약 도시, 경공업 도시, 미래 혁신도시, 중공업 도시, 서비스 집약도시 및 농촌, 가정생산집약도시로 구분될 수 있고 향후 시도별 탄소중립 목표를 실천하기 위해 구체적인 제안을 제시하였다.

도시 문화자원 확보수준의 적정성에 관한 연구 -중소도시 전시공간을 중심으로- (A Study on Optimum Level of Exhibition Space for Cultural city focused on the Medium sized-Cities)

  • 반상철
    • 한국산학기술학회논문지
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    • 제13권10호
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    • pp.4853-4862
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    • 2012
  • 현대도시에서 문화공간은 곧 도시생활의 중심역할을 하는 곳이라고 할 수 있다. 문화공간은 삶의 질을 높이고, 가치의 폭을 넓히는 거점인 것이다. 이러한 점에서 문화공간이 대도시 지역에 집중된 현실은 문화적 수혜의 불평등을 초래하고 있으므로, 각 지역의 기능적, 공간적인 중심인 중소도시에 문화공간과 시설을 확보해야 할것이다. 이러한 시대적 과제를 수행하기 위해 선결되어야 하는 것이 그 확보의 적정수준을 모색하는 것이며, 이릉 위해 본 논문에서는 국내의 현황을 분석하고 선진사례의 비교분석을 기반으로 확보의 필요성을 확인하고 적정한 확보의 수준을 모색해 보고자 하였다.

네트워크도시의 이론적 검토와 동남권에의 적용 가능성에 관한 연구 (Theoretical Examination of Network cities and Application Possibility for South-East Region in Korea)

  • 권오혁
    • 한국경제지리학회지
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    • 제12권3호
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    • pp.277-290
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    • 2009
  • 이 연구는 네트워크도시 모델의 관점에서 동남권 도시들의 연계 구조를 분석하고자 하였다. 이론적 논의에서는 네트워크도시의 특성을 검토하였으며, 이러한 관점에서 동남권 지역 도시들에 대한 적용 가능성을 고찰하였다. 사례지역 연구 결과, 동남권의 광역적 산업클러스터는 형태상으로 뿐 아니라 여타의 측면에서도 전형적인 네트워크도시의 특성을 보유하고 있는 것으로 나타났다. 특히 주요 도시들의 독립성과 상호의존성, 성장 특성은 네트워크도시의 특징을 명확히 보여준다. 동남권 도시들은 상호 독립성을 유지한 채 긴밀히 연계되어 있으며 기능적으로도 분화되어 있다. 더하여 네트워크도시의 성장성과 함께 네트워크도시 내 중소 도시들의 성장도 두드러지게 나타났다. 이러한 도시간 연계는 지역 산업의 경쟁력을 지지하고 있는 것으로 사료된다. 동남권 지역의 산업경쟁력을 향상시키기 위해서는 산업 및 도시연계 구조에 부합하는 광역적 대응이 필요할 것이다.

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우리나라 도시별 의료쇠퇴 유형과 건강결과 분석 (Classification of Healthcare Decline and Analysis on the Healthcare Outcomes)

  • 김효정;김영훈
    • 한국병원경영학회지
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    • 제22권4호
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    • pp.87-101
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    • 2017
  • [Purpose] This study aims to classify of healthcare decline and analyze the corresponding health outcomes among cities in Korea. In pursuing the above, this paper gives the particular attention to draw policy implications. [Methodology/Approach] Public healthcare data of 81 cities between 2014 and 2015 was obtained from the National Medical Center of Korea. A matrix analysis, t-test, ANOVA and multivariate regression were applied. [Findings] The study results indicated that declining cities tend to have the most healthcare resources, compared to growing or maintaining cities. However, accessibility to healthcare appeared to be lower in declining cities. Based on the classification of cities on healthcare decline, 42 out of 81 cities were categorized as a maintain/improvement group, while 39 cities were characterized as decline/depression. The group with a decline/depression type has significantly more healthcare facilities than maintain/improvement type. In contrast, maintain/improvement cities indicated lower incidence of morbidity and mortality than decline/depression cities. Lastly, according to the multivariate regression analysis for the healthcare outcomes by the type of healthcare decline, incidence of morbidity and mortality tended to decrease as the number of healthcare workers, the proportion of people who have healthcare accessibility, and the Timely Relevance Index increased regardless of the number of medical facilities including hospital beds and special beds. [Practical Implications] In conclusion, focusing on the improvement of healthcare accessibility as well as staffing, rather than expanding facilities is essential to set the healthcare policies.

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.

The Prospects of International Cities in China

  • Zhou, Yi-Xing
    • 지역연구
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    • 제15권2호
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    • pp.131-153
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    • 1999
  • Since 1980's there have been two trends that obviously developed in the would -- economics globalization and urban internationalization. China, with is reform and opening-up policy and rapid economic growth, keeps pace with these two trends. The term "International City" has no putative standard or definition. If we make an analogue of urban functional hierarchy in the world with a pyramid, the International Citiesa are the few elites on its top. The highest level international cities can be called "World City" or "Global City". In today's new international division of labor, they are diversified leading cities with control capacity on a world scale, like New York, London, and Tokyo. The secondary international cities are either diversified cities with influence and regulative functions on multinational scale or specialized cities on politics, economics, culture, or other aspects with worldwide impact. Judged by different criteria, there is no city that is qualified as International City with the exception of Hong Kong, which was returned to the P.R. of China in 1997. Nevertheless, Some favorable conditions for the development of the international city still exist in China. This country is already the sixth largest economic entity in the world, and the second largest economic entity in the world, and the second largest one if GNP estimated by ppp. Furthermore its import and export value make up for 40% of its GNP, indicating that China is repidly merging into global economy. In this 1, 2 billion-population country, the difference of economic levels between urban and rural, coastal and inland regions is so big that a few metropolises in the coastal region have the possibilities and potentials to develop into international cities regardless of rather low GNP per capita of the whole country. This article will focus on analysis from several perspectives, such as the proportion of foreign trade values in GDP, the proportion of imports and exports by foreign funded enterprises in total foreign trade value; distribution of the 500 largest foreign-funded enterprises; distribution of the 500 enterprises with largest import and export values; distrigbution of foreign computer and telecom companies with offices in China; the number of outward flights per week and the international tourists; the value of foreign capital used in cities and so on. From this analysis, it is predicted that Chinese international cities will surely emergy from the eastern coastal regions and they must be the core cities of metropolitan interlocking regions that have been formed or in the process of forming. Those international cities will arise from south to north in turn : Hong Kong-Guangzhu, Shanghai, Beijing-Tianjin, and perhaps the last one is Dalian-Shenyang. The other side of this issue is that there is a long way for the coming international cities in China except Hong Kong. At least China and these core cities must continually devote to (1) improve the regional composition of foreign capital sources. (2) improve the composition of export commodities. (3) improve the investment environment (including hard and soft environment) to attract more transnational corporations to settle. (4) deepen the reform of state-owned enterprises and establish Chinese own transnational corporations to enter the world market.ons to enter the world market.

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