• 제목/요약/키워드: Korean cities

검색결과 3,928건 처리시간 0.029초

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.

한국항만도시의 입지, 인구성장과 화물집중도연구 (A Study on the Location, Population Growth, and Cargo Concentration of Korean Port-Cities)

  • 박노경
    • 한국항만경제학회지
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    • 제17권2호
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    • pp.61-87
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    • 2001
  • The purpose of this paper is to analyze the location, population growth. and cargo concentration of Korean port-cities. In the location theory, Sommer (1976) and McGee (1967) models are newly introduced, as are the Rimmer (1967), Bird (1965), Hoyle (1981) models. which were already introduced in previous studies from Korea. Analysis of population growth in the Korean port-cities is conducted using data from 1966 to 1998. Rimmer and Hoyle's concentration models are used to measure cargo concentration from 1966 to 2000. The main results of this paper are as follows: First, Korean ports are concentrated on the East Sea, the Southern Sea, and the West Sea. Their locations are closely related with the hinterland. the inland city, and growth of port-cities. In considering the foreign countrys' cases, Korean port-cities are similar to the models of Bird and Hoyle. Second, the populations of Ulsan and Pohang grew at the fastest rate in 1966-1998, while the port cities in the Honam and Jeiu region grew at much lower ratios. Most port cities are located near large industrial complexes. Third the growth rates of Gwangyang, Daesan, Pohang, Pyungtaeg, and Samchunpo increased, while those of Busan. Mukho, Masan, Mogpo, Yeosu, and Sokcho declined. Of particular note, the growth rate of Busan remained negative after the late 1980s. Fourth. empirical results using the Rimmer (1967) model indicate that Gwangyang, Daesan, Pyungtag, and Pohang have shown the concentration. But the deconcentration was shown from the Busan, Mukho, Janghang, Gunsan, Mogpo, Yeosu, Masan, Sokcho. and Jeju. Fifth, the concentration of ports located in West coast region has shown the mixed results between concentration and deconcentration except the concentration of early 1970s and 1990s. The concentration of ports located in East coast region has shown the concentration before the middle of 1980s. And deconcentration after the middle of 1980s have appeared. The Southern coast region has shown the continuous deconcentration except the partial concentration of early 1986. and 1991. Planners of Korean ports should find out the factors of concentration and deconcentration of each ports and should determine factors such as investment priority level. size and scope in order to ensure the balanced development of regional ports and port-cities.

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건강도시사업 실행단계의 국제간 비교 (An International Comparison of Phases in Healthy City Project Development)

  • 주미현;김한중
    • 간호행정학회지
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    • 제5권3호
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    • pp.501-512
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    • 1999
  • The aim of this study was to utilize the 20 steps in the three phases from the book, 'Twenty steps for developing a Healthy Cities Project $2^{nd}$ Ed., 1995, WHO/EURO' to survey Healthy Cities to identify the similarities and differences by implementation rates and perceived significances among Healthy Cities worldwide. For this study, a self-administered questionnaire was developed based on the book. The questionnaires were delivered by air-mail and e-mail to 213 Healthy City coordinators or directors in 43 nations from Jan 13 to Feb 10, 1999. The responses were gathered up until March 31 from 40 Healthy Cities in 17 nations, mostly in the USA and in the European regions. The main results are as follows; Overall the perceived significances were higher for healthy cities with higher implementation rates and there were significant differences for 'set-up office', 'plans strategy', 'increase health awareness', 'mobilize intersectoral action', and 'secure healthy public policy'. 1. According to national health system, the implementation rate, perceived significance and implementation ability of the 20 steps were higher in the healthy cities with a comprehensive-type health system as compared to those with an entreprenetrial & permissive health system. Overall there were significant differences in the steps 'mobilize intersectoral action', and 'secure healthy public policy'. steps which were predominant in the healthy cities with a comprehensive-type health system. There was no concordance in the ranks of implementation rate and perceived significant score. 2. According to the length of implementation time, the perceived significance and implementation ability were higher in healthy cities with more than 6 years compared to those with less than 6 years, although implementation rate was the same. Overall there was a significant difference in 'secure healthy public policy' the step which was predominant in the healthy cities with more than 6 years of implementation. 3. According to population covered by the Healthy City Project, the implementation rate and implementation ability were higher in healthy cities with more than a population of 100 thousand. There was no significant difference in perceived significance, but there were differences in the following, 'find finances', 'set-up office'. 'mobilize intersectoral action' in the implementation rate and implementation ability. These three steps were predominant in the healthy cities with a population of more than 100 thousand. 4. The population covered by the Healthy City Project was the only effective factor influencing the total implementation ability of each healthy city, and it was higher for those cities with a population of more than 100 thousand. In Conclusion, the implementation rate, the perceived significance and the implementation ability were higher in cities with a comprehensive -type health system, with more than 6 years of healthy city experience and with a population of more than 100 thousand. To increase the reliability and the validity of the questionnaire and the results of this study arising from lack of sufficient data, repeated study needs to be considered with a more refined questionnaire delivered to more healthy cities worldwide.

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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 이미지 분석 기법에 관한 연구 : MDS(Multidimensional Scaling)에 의한 도시 간 이미지 비교 (A Study on the Analysis Method of City Image : Focusing on the Image Comparison between Cities by MDS)

  • 임승빈;최형석;변재상
    • 한국조경학회지
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    • 제32권1호
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    • pp.47-56
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    • 2004
  • Rapid economic development in Korea caused functions of city functions such as concentration of population, deterioration of the quality of living environment and traffic congestion. Korean cities have lost their identity becausr they are merged functionally and physically with neighboring cities, forming one mesa-city. Unified shape and disorganized streets of cities often cause confusion among foreigners and visitors. It is very difficult for them to find their image in strange cities. It is, however, important to correctly analyze the image and meaning of cities for understanding its identity. The purpose of this study is to develop a method to analyze the city image by focusing on some of the main cities in Korea. For this purpose, the adjective questionnaire and multi-dimension scaling (MDS) are applied to the analysis of city image. Image analysis graph by MDS can visually present the general and integrate images. The results of this study are summarized as follows: The important factors for interpretation of city image are historical and industrial character. Seoul, Taegu and Pusan have industrial and complex city images. Kongju has historical city image, while Changwon has a modern image. Chuncheon belongs to a soft and small image. Each city has an alternative solution against a negative image, according to the image analysis graph.

중소도시의 물리적 쇠퇴등급 분류 연구 - 집계구 단위의 건축물 DB 분석을 중심으로 - (A Study on the Classification of Physical Decline in Small and Medium Cities - Focused on the analysis of building DB in the unit of Census Output Area -)

  • 한다혁;이민석
    • 한국농촌건축학회논문집
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    • 제22권3호
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    • pp.41-48
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    • 2020
  • The purpose of this research is to manage the physical sectors systematically, needed for the selection and direction of declining areas, such as urban regeneration and revitalization projects, by grading the density of decline indicators of buildings in small and medium cities. In five small and medium-sized cities in Jeollanam-do, the data were divided into three stages according to the density, according to the use, structure, and age of the building. Rating by element of Census Output Area, detailed designation, and management of declining areas in small and medium-sized cities are required, rather than setting the scope of declining areas based on administrative districts. It is also necessary to manage cities through complex and intra-element phasing rather than single elements in defining physical decline. The analysis based on the complex factors and boundary of the Census Output Area is meaningful in order to maintain and manage such cities in a more detailed and precise manner according to such characteristics of each region.

스마트시티의 핵심 가치와 경쟁력 확보방안 (Value Creation and Competitiveness Achievement Strategies of Smart Cities)

  • 이영성
    • 지역연구
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    • 제33권1호
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    • pp.59-68
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    • 2017
  • 최근에 스마트시티가 전세계적인 화두가 되고 있다. 많은 도시들은 도시문제를 해결하기 위해 더욱 스마트한 도시가 되기 위해 노력하고 있다. 그럼에도 아직은 스마트시티에 대한 명료한 개념 규정이 되어 있지 않을 뿐 아니라, 스마트시티가 되기 위한 도시들의 철학과 접근방법은 크게 다르다. 본 연구에서는 특히 스마트시티의 가치창출을 강조하고 있다. 만약에 새로운 시대에 맞는 가치를 창출하지 못하는 도시라면 겉으로만 똑똑한 헛똑똑이 도시로 전락할 가능성이 높다. 스마트시티가 가치를 창출하려면 사례깊게 배려하는 섬세한 감수성, 정확성, 속도가 중요하다. 이 가운데 가장 중요한 것은 사려깊게 배려하는 섬세한 감수성이다. 이를 통해 스마트시티가 새로운 가치를 창출하고, 그러한 과정에서 혁신을 이루어낼 수 있을 때 시민들에게 사랑받을 수 있을 것이다. 또한 스마트시티가 시민들에게 사랑받을 수 있을 때, 그에 따라 스마트시티가 우리나라 전역으로 확산될 때, 스마트시티를 뛰어넘어 스마트지역으로 발전해나갈 수 있을 것이다.

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.

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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동경도 간판 분석에 의한 서울시 간판관리 문제점 분석 (Analysis on the Current Cityscapes in Korea and Their Problems)

  • 송민정
    • 한국콘텐츠학회논문지
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    • 제8권5호
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    • pp.134-144
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    • 2008
  • 도시환경디자인에서의 간판의 역할은 상점을 알려주는 기능적인 면도 있지만 그 지역의 전반적인 분위기를 조성해주는 심미적인 면이 크다고 볼 수 있다. 간판이 도시환경에 미치는 영향은 크며 도시의 이미지를 결정한다. 도시환경의 구체적인 목표는 인간의 쾌적성을 확보하는 것이며 인간은 아름답고 쾌적한 도시환경에서 보다 질 높은 삶을 살기를 갈망하며 추구한다. 그러나 현재 서울을 비롯한 우리나라 도시는 난립된 광고물과 간판이 주변 환경과 조화를 이루지 못하고 있는 실정이며 도시환경의 질을 떨어뜨리고 시민들에게 시각적 불쾌감을 주는 공해요인으로 대두되고 있다. 이러한 문제점을 해결하고자 서울시와 동경도의 간판관리를 비교분석하여 서울시 간판관리의 문제점을 모색하여 보다 체계적으로 간판관리가 될 수 있도록 하고 간판 개선 방안을 모색하기 위한 기초 자료가 되도록 한다.