• Title/Summary/Keyword: cities

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A Preliminary Analysis of the Impact of Urban Green Spaces on the Urban Heat Island Effect Using a Temperature Map

  • Myeong, Soo-Jeong
    • Korean Journal of Remote Sensing
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    • v.26 no.6
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    • pp.675-680
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    • 2010
  • Temperature is one of the main issues in climate change, and the urban heat island effect in highly developed urban areas is an important issue that we need to deal with. This study analyzed the extent of the cooling effects of urban green spaces. The study used a surface temperature map of Seoul. It found that the cooling effects of green space was observed within limited distances, although it varied a little depending on the parks investigated. The cooling effect distance ranged from 240m to 360m, averaging about 300m. It also found the size of an urban green space does not make much difference in cooling the surrounding areas. Although further investigation with diverse urban areas should be conducted on this matter, the results did imply that many small green spaces in the neighborhood are more effective than a single big green space in mitigating the heat island effects of cities.

Religious Syncretism in Yakutia: A Case of the Building 'Archie Jiete' (야쿠트의 종교혼합 현상에 대한 고찰: '아르치 지에테'(Archie Jiete)의 건립을 중심으로)

  • Kim, Tschung-Sun
    • Cross-Cultural Studies
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    • v.25
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    • pp.131-158
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    • 2011
  • In the Sakha(Yakutia) Republic, culture and politics continue to be interwined. Shamanism recently has come out of hiding after Soviet repression, and into fashion. Images of the shaman are changing in villages, where traditional healers have maintained their practices in difficult conditions, and in cities, where a resurgence of spirit belief and healing has led to the revitalization of their nationalism. Shamans and folk healers manipulate their own images, and in turn are changed by the upheavals of politicized cultural revitalization. In this complex and interactive context, folklore about traditional shamans has become especially rich and accessible. I argue here that religion has become an idiom through which competing definitions of homeland and national pride are being shaped. Until September 2002, Yakutsk had never had a 'temple' devoted to the practice of traditional shamanic beliefs. Indeed the whole concept that a building 'Archie Jiete' could contain or represent the beliefs, values and rituals of the Sakha people was new, and highly controversial.

Light and Shade in the Image of Africa (아프리카 이미지의 명(明)과 암(暗))

  • KIM, Kyung-Rang
    • Cross-Cultural Studies
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    • v.27
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    • pp.145-166
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    • 2012
  • In this Study, the search and analysis for the contents of the mass media, especially, such as newspaper articles, broadcast campaigns, broadcating advertisings, the Internet, etc, are accomplished under the assumption that the cause of the negative and fragmentary images about Africa holds a place in Korea's heart resulting from Korean mass media. Africa was seen as not only the continent of famine and diseases, but also a safari and the Nature's repository. However, these images are only the fragments of information about the African continent. So, we have to understand and recognize the origin of Africa in aspect of its learning and the mythology as well as the truth of the African as modern human origins. Moreover, we have to do our endeavor to have a good perspective about Africa as our future partner somewhat less than the wretched continent that we applaud their effort to the pursuit of stability and the development in terms of their modern cities, economy and politics and we have to aid and send relief cargoes simply.

Analysis and Calculation of Global Hourly Solar Irradiation Based on Sunshine Duration for Major Cities in Korea (국내 주요도시의 일조시간데이터를 이용한 시간당전일사량 산출 및 분석)

  • Lee, Kwan-Ho;Sim, Kwang-Yeal
    • Journal of the Korean Solar Energy Society
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    • v.30 no.2
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    • pp.16-21
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    • 2010
  • Computer simulation of buildings and solar energy systems are being used increasingly in energy assessments and design. This paper discusses the possibility of using sunshine duration data instead of global hourly solar irradiation (GHSI) data for localities with abundant data on sunshine duration. For six locations in South Korea where global radiation is currently measured, the global radiation was calculated using Sunshine Duration Radiation Model (SDRM), compared and analyzed. Results of SDRM has been compared with the measured data on the coefficients of determination (R2), root-mean-square error (RMSE) and mean bias error (MBE). This study recommends the use of sunshine duration based irradiation models if measured solar radiation data is not available.

A Change of Yearly Solar Radiation Energy Resources in Korea (국내 태양광자원의 경년변화)

  • Jo, Dok-Ki;Kang, Young-Heack
    • Journal of the Korean Solar Energy Society
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    • v.30 no.2
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    • pp.81-86
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    • 2010
  • Since the solar energy resource is the main input for sizing any solar photovoltaic system and solar thermal power system, it is essential to utilize the solar radiation data as a application and development of solar energy system increase. It will be necessary to understand and evaluate the insolation data. The Korea Institute of Energy Research(KIER) has begun collecting horizontal global insolation data since May, 1982 and direct normal insolation data since December 1992 at 16 different locations in Korea. Because of a poor reliability of existing data, KIER's new data will be extensively used by solar energy system users as well as by research institutes. From the results, the yearly averaged horizontal global insolation was turned out 3.60kWh/$m^2$/day and a significant difference of horizontal global insolation is observed between 1982~1990 and 1991~1999, 2000~2008 through 16 different cities in Korea.

The Study on Configurations and Interferences of differential gear unit for Light Rail Transit (경량전철용 차동기어장치의 구성 및 간섭에 관한 연구)

  • 김연수;박성혁;이우동;정종덕;한석윤
    • Proceedings of the KSR Conference
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    • 1999.11a
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    • pp.99-106
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    • 1999
  • Because many light rail transit systems are mainly operated in the downtown areas of a large cities and the congestion areas, there are many steep gradients and sharp radius sections in that lines. As that reasons above, light rail vehicles are equipped with differential gear units between traction motors and final reduction gear units. In this paper, the configurations and the interferences of 2K-H I type Planetary gear train, which is applicable for light rail vehicles and based on various differential gear units, are studied. The ranges of addendum modification coefficients which would not lead to interferences is analyzed, and optimal addendum modification coefficients among these ranges are presented, which generate the maximum efficiency of planetary gear drives and differential gear unit as pressure angles, speed ratios,

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Influencing Factors of Confidence in Performing Cardiopulmonary Resuscitation (CPR) among University Students (대학생의 심폐소생술 수행자신감에 영향을 미치는 요인)

  • Kim, Yu Jeong;Lee, Eun Mi
    • Journal of the Korean Society of School Health
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    • v.30 no.3
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    • pp.194-201
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    • 2017
  • Purpose: The aim of the study was to identify factors influencing confidence in performing cardiopulmonary resuscitation (CPR) of university students. Methods: Data were collected from 261 students recruited from 2 cities using a questionnaire covering confidence, knowledge and attitude in regard to CPR. Results: There was a significant positive correlation between confidence and knowledge (r=.37, p<.001), between attitude and confidence (r=.61, p<.001), and between knowledge and attitude (r=.61, p<.001). Confidence in performance increased as knowledge, attitude, grade, CPR training frequency and educational satisfaction increased. Conclusion: There is a need for CPR training programs that can improve practical training and educational satisfaction of university students.

Estimating Adequate Number of Taxis in Small-Medium Cities (중소도시에서의 적정 택시대수 산정)

  • 김경환;순정운
    • Journal of Korean Society of Transportation
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    • v.16 no.4
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    • pp.7-20
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    • 1998
  • 우리나라 택시의 경우, 이용측면에서나 수송분담률측면에서 볼 때 대중교통에 가까운 역할을 담당하고 있다고 할 수 있으나, 적정 택시대수를 산정하는 모형이 정립되지 않아 택시증차규모 결정시 이해관계자들의 마찰로 사회적 물의를 일으키며 이를 조정하는데 행정력이 낭비되고 있는 실정이다. 이에 본 연구에서는 택시 이용자와 업체 그리고 운전기사의 입장이 반영된 적정 실차율, 교통여건, 이용객수의 변화 들을 고려한 중소도시에서의 택시 증차대수 산정을 위한 합리적 기준이 제시되었으며 현재의 운행기록에 의한 거기기준실차율조사의 문제점을 개선한 새로운 택시 실차율 조사방법의 적용성이 검토되었다. 새로운 실차율 조사방법으로 부도심상의 주요 가로를 통과하는 택시에 대한 차량기준실차율을 조사하여 종래의 운전자의 운행기록표에 의한 거리기준 실차율과 비교하였다. 두 방법에 의한 실차율이 매우 근사한 값을 보였으며 통계적 검정에서도 차이가 없는 것으로 나타났다. 차량기준방법에 의한 실차율조사로 조사비용을 줄이고 자료의 신뢰성을 높일수 있을 것으로 기대된다.

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Evaluating Shipping Financial Ecological Environment in Qingdao: Implications for Maritime Financial Center Policy of Busan

  • Wang, Chong;Qu, Wendi;Kim, Chi Yeol
    • Journal of Navigation and Port Research
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    • v.45 no.5
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    • pp.252-258
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    • 2021
  • Given the cyclicality, seasonality, and capital-intensiveness, the development of the shipping industry has long been contingent on corporate financing activities. As such, there have been a growing number of cities in East Asia pursuing a global maritime financial center in order to support their domestic shipping industry. However, it is widely accepted that financial services relevant to shipping in East Asia are quite under-developed compared to those of other leading maritime financial centers in Europe and North America. In this regard, this paper aimed to construct an evaluation index of maritime financial centers in terms of financial ecological environment for the purpose of highlighting the current status of development and suggesting future directions. Furthermore, this paper examined the development of shipping finance in Qingdao as a numerical example using the fuzzy comprehensive evaluation and compared results with those of Shanghai.

Character and Sustainability of Built Heritage Listed in the Eight Scenery

  • Kim, Sujin
    • International Journal of Advanced Culture Technology
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    • v.9 no.3
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    • pp.221-231
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    • 2021
  • The purpose of this study is to examine the characters and sustainability of built heritage featured in the eight-scenery listings of Gyeonggi municipalities in South Korea. Eight scenery is a place marketing medium that reflects the community's appreciation of the selected resources. For a research method, we utilize framework analysis to understand the cultural resources in three categories: heritage value identification, preservation, and dissemination. Primary sources for data collection include the chosen eleven cities' eight-scenery webpages, the National Cultural Heritage Portal, and articles about the built heritage resources included in the eight scenery. The results of this study show the public's acknowledgment of diverse built heritage, from prestigious monuments to local heritage interpretations, and various preservation and public program development approaches. The conclusion discusses the research findings regarding historic preservation, sustainable development, and place marketing.