• Title/Summary/Keyword: Urban changes

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Analysis of River Channel Morphology and Riparian Land Use Changes Using Aerial Photographs and GIS (항공사진과 GIS를 이용한 하천형태 및 하천부지 변화추세 분석)

  • Park, Geun-Ae;Lee, Mi-Seon;Kim, Hyeon-Jun;Kim, Seong-Joon
    • Journal of The Korean Society of Agricultural Engineers
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    • v.47 no.2
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    • pp.15-21
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    • 2005
  • This study is to trace the change of stream shape using the past series of aerial photographs, and to compare the land use changes of riparian area along the stream. For the Gyeongan national stream, aerial photographs of 1966, 1981 and 2000 were selected and ortho-photographs were made with interior orientation and exterior orientation, respectively. Apparent changes of the stream were found that the consolidated reaches of stream by levee construction became straight together with widening of their stream widths. Especially the stream width of inlet part of Paldang lake widened almost twice because of the rise of water level by dam construction in 1974. The land use of riparian areas of three selected years were classified into six categories (water, forest, agricultural land, urban area, road, sandbar) by digitizing method. The forest and agricultural lands decreased and urban area increased as the stream maintenance had been performed.

Dietary Acculturation: Definition, Process, Assessment, and Implications

  • Satia-About a, Jessie
    • International Journal of Human Ecology
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    • v.4 no.1
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    • pp.71-86
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    • 2003
  • Over the past few decades, changes in patterns of behavior (e.g., diet, smoking, alcohol consumption, and physical activity) have led to major changes in health status, characterized by increases in obesity, Type II diabetes mellitus, cardiovascular disease, and some cancers. This epidemiologic transition is largely the result of rapid increases in immigration to developed countries and rural-urban migration within developing countries, which is usually accompanied by environmental and lifestyle changes. In particular, adoption of “Western” dietary patterns, which tend to be high in fat and low in fruits and vegetables, is of concern since diet is a potent contributor to chronic disease risk. However, until recently, the process by which immigrants and rural-urban migrants adopt the dietary practices predominant in their new environments, known as dietary acculturation, has received very little research attention. Dietary acculturation is multidimensional, dynamic, and complex, and varies considerably depending on a variety of personal, cultural, and environmental characteristics. Therefore, to intervene successfully on the negative aspects of dietary acculturation, it is important to understand the process and identify factors that predispose and enable it to occur. The purpose of this article is to provide a practical model for understanding and investigating the effect of dietary acculturation on food and nutrient intake. Thus, this report 1) gives an overview of acculturation, 2) defines dietary acculturation and presents a model for how it occurs, 3) discusses measurement issues around dietary acculturation,4) reviews the literature on dietary acculturation in Korean Americans; 4) suggests a paradigm for acculturation research; and 5) offers some recommendations for future research in this area.

Inter-Annual and Intra-Annual Variabilities of NDVI, LAI and Ts Estimated by AVHRR in Korea

  • Ha, Kyung-Ja;Oh, Hyun-mi;Kim, Ki-Young
    • Korean Journal of Remote Sensing
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    • v.17 no.2
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    • pp.111-119
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    • 2001
  • This study analyzes time variability of the normalized difference vegetation index (NDVI), the leaf area index (LAI) and surface temperature (Ts) estimated from AVHRR data collected from across the Korean peninsula from 1981 to 1994. In the present study, LAI defined as vegetation density, as a function of NDVI applied for the vegetation types and Ts defined by the split-window formulation of Becker and Li (1990) with emissivity of a function of NDVI, are used. Results of the inter-annual, intra-annual and intra-seasonal variabilities in Korea show: (1) Inter-annual variability of NDVI is generally larger in the southem and eastern parts of the peninsula than in the western part. This large variability results from the significant mean variation. (2) Inter-annual variability of Ts is larger in the areas of smaller NDVI. This result shows that the NDVI play a small role in emissivity. (3) Inter-annual variability of LAI is larger in the regions of higher elevation and urban areas. Changes in LAI are unlikely to be associated with NDVI changes. (4) Changes in NDVI and Ts are likely dominant in July and are relatively small in spring and fall. (5) Urban effect would be obvious on the time-varying properties of NDVI and Ts in Seoul and the northern part of Taejon, where NDVI decreases and Ts increases with a significant magnitude.

An Analysis of Character for Community Vitality in Urban Public Space - Focus on the Urban Squares - (커뮤니티 활성화를 위한 도시공공공간 특성 분석 - 도시광장 사례를 중심으로 -)

  • Kim, Mi-Young;Moon, Jeong-Min
    • Korean Institute of Interior Design Journal
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    • v.20 no.6
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    • pp.291-299
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    • 2011
  • As our lifestyles have changed due to rapid industrialization and urbanization, new social and communication problems have been caused and there have been lots of discussion on regional communication. For communities to become alternatives with realistic meanings in this changed society, considerations on social and spatial conditions are needed. Therefore, public space which works as a device of physical environment for activation of communities needs more active changes which encourages social communication. In respect to the activation of communities, the following suggestions are given: First, physical devices of a urban plaza should be arranged to support various programs presented along with consideration of human behaviors as users. Second, fundamental facilities of the plaza should accommodate various activities through connections with programs and commercial space. Third, when cultural and historical characteristics of the community are understood, the plaza can form regionality and symbolism through artistic representation. And users can form the identity of community. Fourth, transportation facilities should be separated from or coexist with areas of passengers and the plaza should have its own identity through symbolic sculptures.

Development and Application of Evaluation System for Disaster Prevention Ability of Urban Parks (도시공원 방재기능 평가체계 개발 및 적용)

  • Huang, Zhirui;Lee, Ai Ran
    • Ecology and Resilient Infrastructure
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    • v.7 no.3
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    • pp.199-207
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    • 2020
  • Against the backdrop of frequent weather disasters such as floods, droughts, and heat waves worldwide, urban parks should provide functions for the safety of urban residents as well as rest, culture, and ecological functions. In this study, a classification system for urban disaster prevention parks is proposed for the safety of the urbanites with the aim of securing a complex function in a green space in response to climate changes in the city. Analytical indicators were extracted through literature research, and the classification system was verified through on-site surveys of the target sites and interviews with those involved. The large class for evaluation was divided into three types: location, spatial composition, and disaster prevention complex facilities of urban parks; the direction of improvement was proposed for problems identified through empirical analysis.

A Study on the Urban Housewives Economic Well-Being According to Family Cohesion and Adaptability (도시주부의 가족응집력과 적응력에 따른 경제복지감)

  • 계선자;한정화
    • Journal of Family Resource Management and Policy Review
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    • v.1 no.2
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    • pp.59-77
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    • 1997
  • The purpose of this study is to investigate some related factors which influence subjective economic well-being of the urban housewives, based on family cohesion and adaptability. Questionnaires were distributed to the 1,800 housewives residing in Seoul. The 1261 data obtained were analyzed by Frequency, Percentage, Mean and Multiple Regression. The major findings of this study were summarized as follows. (1) There were significant differences on the economic well-being of the urban housewives according to the social demographic variables, the objective variables, the perceptions of the subjective variables, the conjugal variables, the perceptions of the subjective economics well-being by the urban housewives were in the rank of the perceptions of the subjective(R²=.37), the objective variable(R²=.33) and the family cohesion and adaptability(R²=.28). Based on the above findings, this study concludes that the intermediary variables. such as family cohesion and adaptability are essential elements for comprehending the urban housewives’economic well-being. Accordingly in has been found that the value of family remains important factors to guide in despite the radical changes. If greater attentions should be directed to the social welfare, the quality of family life could be improved and stabilized.

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Performance Assessment of Three Turfgrass Species, in Three Different Soil Types, and their Responses to Water Deficit in Reinforced Cells, Growing in the Urban Environment

  • Ow, L.F;Ghosh, S.;Chin, S.W.
    • Weed & Turfgrass Science
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    • v.4 no.4
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    • pp.338-347
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    • 2015
  • Reinforcement cells are used to aid grass growth and taken together, this serves to extend greenery beyond the conventional spaces of lawns, tree pits, gardens, and parks, and is advantageous to urban cities since space for greening is often limited. Drought has variable effects on plant life and the resilience of turf to drought resistance also varies with species. Changes in photosynthetic ability were more pronounced for media rather than grass species. The media of sand without organic matter was found to be least suited for drought resistance. Normalized difference vegetation index (NDVI) and digital image analysis (DIA) data were generally in favour of Zoysia species as oppose to A. compressus. In A. compressus, selective traits such as, a more extensive root system and lower specific leaf area (SLA) were not an underlying factor that assisted this grass with enhanced drought resistance. Generally, WUE was found to be strongly related to plant characterises such as overall biomass, photosynthetic features as well as the lushness indexes, and specific leaf area. This study found a strong relationship between WUE and a suite of plant characteristics. These traits should serve as useful selection criteria for species with the ability to resist water stress.

A Survey on the Urban Residents' Recognition of Eco-friendly Outdoor Playground - Focused on Apartment House Playground Users in Seoul·Incheon·Gyeonggi-

  • Kim, Ja Kyung
    • KIEAE Journal
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    • v.14 no.5
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    • pp.39-48
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    • 2014
  • Urban outdoor playground serves as the space to promote the physical, cognitive, social, creative, emotional and linguistic development of children and the education center to stimulate the imagination and curiosity of them. It is also the place to be used as a basic park for urban residents and the local community space for associating with people of various levels. However, this playground as a banal space did not function properly before now. In 21st century, urban playground requires change and its various changes have been attempted. In particular, there is a need for the change into eco-friendly playground to provide children's health and urban healthy environment. Therefore, it requires much effort to construct and vitalize the eco-friendly playground adequate for domestic circumstances in Korea. This study derived the preferred planning items among eco-friendly playground planning elements focused on the people to use it and provided the data for the construction of local friendly, eco-friendly outdoor playground. For this purpose, we visited the playground of the apartment house built in 10 years with more than 300 households and surveyed 200 adults and investigated the residents' utilization and satisfaction on the current playground and the recognition and preference for eco-friendly playground.

The Application of Pictometry for Efficient Digital Change Detection in Urban Area (효율적인 수치판독업무를 위한 다방향 영상촬영시스템의 활용방안)

  • Kim, Won-Dae;Song, Yeong-Sun
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.28 no.4
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    • pp.455-461
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    • 2010
  • It is one among very important works to detect change in urban area for effectively maintaining city. But, recently it is become more difficult to extract various changes using traditional method based on orthophotos because objects in urban area get higher and become more complex. To resolve these problems, we introduce new digital imagining system Pictometry which can acquire images of five directions (oblique and nadir). In this study, we compared the digital interpretation results based on Pictometry to the results from traditional method. As a result, Pictometry showed the good results in change detection of urban area.

A Study on the Formation of Traditional Settlement In NaJu Castle Areas (나주 읍성안 전통주거지의 형성에 관한 연구)

  • Kim, Byoung-Jin;Shon, Seung-Kwang
    • Proceeding of Spring/Autumn Annual Conference of KHA
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    • 2005.11a
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    • pp.205-209
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    • 2005
  • A traditional settlement, in a long history establishment, is appeared to be configured of the people and their life in the areas. This is, a positive aspects, compared to most of the city in these day which is monotonous aspects. The purpose of this research deals what is the formation process and spatial character in urban settlement of Naju city, and how to applicate in a modern city context. For the research goals, it analyse an old Naju Castle area, transformation of the land use through the cadastral survey, and spatial character through step by step in chronical approach. The process of change can be seen in the devide pattern in a lot, formation and extension of a private road, and formation and change of the road; This shows how to changes traditional settlement in a old urban areas of Naju city. A now road system in old area, as a conflict, push the change of the spatial organization, and the balance of the identity of a traditional settlement and a new change as a convenient needs, it is a key point to get ideal settlement.

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