• Title/Summary/Keyword: Urban Study

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Urban Teachers' Perceptions and Practices of Culturally Relevant Science Teaching

  • Nam, Youn-Kyeong
    • Journal of The Korean Association For Science Education
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    • v.31 no.7
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    • pp.1040-1054
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    • 2011
  • This formative evaluation study presents a professional development program, "Earth Science Systems for Teachers (ESST)" held in a Midwest State in the United States. This study investigates how a professional development for urban teachers affects the teacher participants' perceptions of using the urban environment for their science teaching and their lesson unit development. The purpose of the program was to help urban teachers create science units using the urban geologic environment and its connection to urban students' everyday lives. The participant teachers' daily journal entries during the program, their lesson plans before and after the program, as well as their teaching reflections were collected as major data source. The teachers' daily journal entries were analyzed qualitatively and their pre-post lessons were analyzed quantitatively using a lesson plan analysis tool, Culturally Relevant Science Teaching Perspectives (CRSTP) was developed by the author. The lesson analysis tool was used to assess teachers' science lesson plans in the perspective of culturally relevant pedagogy and place-based pedagogy. The major findings include: 1) The teacher participants' field experiences in urban geologic sites and urban environments help the teachers to change their perceptions of using the urban environment as a teaching resource and 2) there were significant differences in their pre and post lesson unit scores based on CRSTP (P<. 01). The implications of this study are also discussed.

A Study on Urban Energy Consumption Estimation on the Urban Planning Stage (도시계획단계의 에너지 수요예측 방안에 관한 연구)

  • Yeo, In-Ae;Yoon, Seong-Hwan
    • 한국태양에너지학회:학술대회논문집
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    • 2012.03a
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    • pp.506-510
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    • 2012
  • This study suggested an improved algorithm of urban energy consumption estimation on the urban planning stage which concerns calculation accuracy. The results are as follows. (1) Urban energy consumption was estimated and managed per unit space using E-GIS DB which contains facility information per mesh. (2) Urban energy consumption was reflected by the urban facility classified and standardized by the characteristics of energy use. (3) Calculation accuracy of energy consumption was approached by separately suggested as summer algorithm reflecting urban heat island on summer energy use and winter algorithm reflecting heating system normally used in Korea.

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A Study on the Change of Urban Spatial Structure and Transformation of circumjacent Lot by Course of the Construction of Railroads and the Dismantlement of Eupseong in the Early 20th Century (20세기 초 철도부설과 읍성해체에 따른 도시공간구조와 주변 필지 변화에 관한 연구)

  • Kim, Dae-Jung;Cho, Jae-Mo
    • Journal of architectural history
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    • v.28 no.2
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    • pp.31-40
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    • 2019
  • Considering the situation in the early 20th century when the existing urban system centered on urban areas began to change, the biggest factors causing urban structural changes in urban areas are construction of railroad and urban dismantling. The change process of Eupseong, in the microscopic viewpoint, can be understood as a process of change in the course of dismantlement of town's demarcation, improvement of accessibility and urban expansion due to the construction of railroads, process of urban expansion following the crumbling boundaries and structural changes. This study aimed to look at the transformation process of the Eupseong in the early 20th century, focusing on the demolition of the castle and the railway construction from a microscopic point of view of city.

Study on Urban Policies toward the Effective Disaster Prevention (실효성 있는 재해예방형 도시계획을 위한 개선방향 고찰)

  • Kim, Seulyea;Kim, Mieun;Kim, Changhyun;Lee, Sangeun
    • Journal of the Korean Society of Safety
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    • v.32 no.2
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    • pp.124-131
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    • 2017
  • This study aims to contribute to urban policy for more effective disaster prevention, as abnormal natural disasters are becoming more frequent. Up to now, the urban plan for disaster prevention in Korea merely includes basic principles and necessities of measures as an early stage. Furthermore, there are difficulties to make specific programs because the legal system, technical instruments, and financial supports are not sufficient. Therefore, this study figures out problems in the current plan related to urban prevention after analyzing the legal system and practices. Resulting from case studies in developed countries, the study draws significant implications, as follows: enhancing legally binding force; improving the procedures for the programs; establising technical infrastructure. It first suggests a way for the urban policy for disaster prevention by considering our local features comprehensively. It then defines the roles of central, local governemnts and research institutions, and the procedure for urban disaster prevention planning building on the individual roles. This study concludes that an emphasis should be placed on institutional tools necessary to publish technical guideline and establish the system so that urban planners more easily access to disaster risk information.

Analysis of Climate Variability under Various Scenarios for Future Urban Growth in Seoul Metropolitan Area (SMA), Korea (미래 도시성장 시나리오에 따른 수도권 기후변화 예측 변동성 분석)

  • Kim, Hyun-Su;Jeong, Ju-Hee;Kim, Yoo-Keun
    • Journal of Korean Society for Atmospheric Environment
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    • v.28 no.3
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    • pp.261-272
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    • 2012
  • In this study, climate variability was predicted by the Weather Research and Forecasting (WRF) model under two different scenarios (current trends scenario; SC1 and managed scenario; SC2) for future urban growth over the Seoul metropolitan area (SMA). We used the urban growth model, SLEUTH (Slope, Land-use, Excluded, Urban, Transportation, Hill-Shade) to predict the future urban growth in SMA. As a result, the difference of urban ratio between two scenarios was the maximum up to 2.2% during 50 years (2000~2050). Also, the results of SLEUTH like this were adjusted in the Weather Research and Forecasting (WRF) model to analysis the difference of the future climate for the future urbanization effect. By scenarios of urban growth, we knew that the significant differences of surface temperature with a maximum of about 4 K and PBL height with a maximum of about 200 m appeared locally in newly urbanized area. However, wind speeds are not sensitive for the future urban growth in SMA. These results show that we need to consider the future land-use changes or future urban extension in the study for the prediction of future climate changes.

Research on the Accessibility of Urban Green Space Based on Road Network- A Case Study of the Park Green Space in City Proper of Nanjing

  • Fan, Yong;Zhao, Ming-yuan;Ma, Lin;Zhao, Lan-yong
    • Journal of Forest and Environmental Science
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    • v.32 no.1
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    • pp.1-9
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    • 2016
  • Accessibility of urban green space, as an important index of evaluating the service level of urban green space, not only shows the resident's access to green space, but also reflects the environment quality of urban living. Since the quantity, area and space distribution of the patches in urban green space directly affect the function of urban green space and the quality of urban environment, the research on the accessibility of urban green space holds great significance to improve the service of urban green space and the living environment quality. Based on GIS software, this research uses the road network and the population distribution data of Nanjing's city proper to conduct quantitative analysis of the accessibility of park green space and the convenience for residents to travel under different forms of transportation. After the case analysis, the author tests the application of road network in studying the accessibility of urban park green space and proposes a GIS-based method to study the accessibility and the rational layout of urban green space.

The Development of Extended Urban Land Information System for Sustainable Urban Management

  • Koh, June-Hwan
    • Korean Journal of Geomatics
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    • v.1 no.1
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    • pp.61-67
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    • 2001
  • This study aims to develop the Extended Urban Land Information System (EULIS) which can support the sustainable urban management. Although the existing Urban Land Use Information system (ULUIS) that aids the micro-level land use information is a good means for the understanding of urban spatial structure and district-level planning and management (such as urban design, redevelopment planning and district-level transportation planning, etc.), it has some limitations in supplying the information for sustainable urban management, such as environmental and traffic analysis, urban infrastructure's carrying capacity analysis, etc. The EULIS is designed to efficiently supply the information for sustainable urban management. For the successful construction of EULIS, the followings have to be considered. 1) the integration of topographic maps which contain the building's footprints and cadastral maps which contain the parcel's boundary, 2) the integration of EULIS and FM (Facility Management) system for the full utilization of information about capacity analysis of infrastructure, 3) the construction of standardized georeferencing system and spatial unit for the combined use of environment and traffic census data. This study shows 1) why EULIS is needed for the sustainable urban management and which elements are needed for the system,2) the E-R data model for the EULIS, 3) the strategies for the construction of EULIS and 4) the conclusion.

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A Study on the Planning Standards of Parks and Open Space Planning (택지개발사업지구의 공원녹지계획 지표연구)

  • 김귀곤;성현찬;황기현
    • Journal of the Korean Institute of Landscape Architecture
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    • v.22 no.1
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    • pp.179-198
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    • 1994
  • Urban parks and open spaces provide the community residents with the most easily accessible source for outdoor recreation, contributing also to the improvement of quality of natural environment in urban area. The demands of urban residents' for more and better green area are ever-increasing. However, the level of most urban open spaces which are easily accessible for residents are not satisfactory to meet the residents' demand in availability and in quality as well. Most existing urban open spaces are simply built of green areas only or have been developed in almost identical design with little consideration for individual uniqueness of the site. When developing neighbourhood parks in urban housing complexes, for example, little consideration is being given to topographical conditions, interrelation with the adjacent green area, or viability of the urban ecosystem. In many cases, urban park development projects are being done with serious negligence of natural properties of the site, by even destroying existing healthy woodlands. for instance. The objectives of this study are; -To survey on the domestic and the overseas cases of regulatory systems, development status and planning methods for urban open space. -To identify underlying issues of residental park developments in urban housing projects and establish appropriate improvement measures thereof, by studing and analyzing current-use data of developed urban parks and management status thereof. -To establish improved standards for urban open space planning, by integrating above surveys and studies, and recommendation for revision of related legislation is also presented to implement these standards.

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Analysis of Educational Satisfaction of Urban Regeneration University in Small and Medium Cities (중소도시 도시재생대학 교육 만족도 분석)

  • Cho, hye-jin;Kim, Sung-rok;Jung, Nam-su
    • Journal of Korean Society of Rural Planning
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    • v.27 no.3
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    • pp.1-9
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    • 2021
  • It is important for residents to give opinions and participate in urban regeneration projects. Urban regeneration college is being operated to strengthen the capacity of residents. In this study, the educational satisfaction of the students was surveyed while conducting the program of urban regeneration college. By analyzing survey, we intend to derive implications when constructing an urban regeneration college education program. The survey was conducted on 215 students from urban regeneration college in y-gun. Analysis was performed using the spss24.0 program. As a result of factor analysis, it was classified into three factors: education design, education culture, and education support. All three factors had significant differences in educational satisfaction. Satisfaction with education had a significant effect on the possibility of village development. Satisfaction was different according to the contents of the educational program according to the awareness of urban regeneration. For those who are aware of urban regeneration, educational culture among educational programs has more influence on educational satisfaction. Those who were not aware of urban regeneration had an effect on education support and education satisfaction. The results of this study can be used as basic data when planning educational programs for urban regeneration college.

Analysis of the Correlation between Urban High Temperature Phenomenon and Air Pollution during Summer in Daegu

  • An, Eun-Ji;Kim, Hae-Dong
    • Journal of Environmental Science International
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    • v.28 no.10
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    • pp.831-840
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    • 2019
  • Recently, summer high temperature events caused by climate change and urban heat island phenomenon have become a serious social problem around the world. Urban areas have low albedo and huge heat storage, resulting in higher temperatures and longer lasting characteristics. To effectively consider the urban heat island measures, it is important to quantitatively grasp the impact of urban high temperatures on the society. Until now, the study of urban heat island phenomenon had been carried out focusing only on the effects of urban high temperature on human health (such as heat stroke and sleep disturbance). In this study, we focus on the effect of urban heat island phenomenon on air pollution. In particular, the relationship between high temperature phenomena in urban areas during summer and the concentration of photochemical oxidant is investigated. High concentrations of ozone during summer are confirmed to coincide with a day when the causative substances (NO2,VOCs) are high in urban areas during the early morning hours. Further, it is noted that the night urban heat island intensity is large.. Finally, although the concentration of other air pollutants has been decreasing in the long term, the concentration of photochemical oxidant gradually increases in Daegu.