نتایج جستجو برای: urban system

تعداد نتایج: 2378089  

Kianoosh Zaker Haghighi Melika Mehriar,

In developing countries, the domination of peripheral and dependent capitalism relations and the lack of appropriate structures and channels of attracting, this system have caused some kind of spatial-anatomic unbalances that has resulted in the appearance of single cities with national and regional prevalence. This situation is the main reason for small, medium and intermediate cities to lose ...

Journal: :international journal of environmental research 0
r. oyoo national water and sewerage corporation, p. o. box 7053, kampala, uganda r. leemans environmental systems analysis group/environmental policy group, wageningen university, p.o. box 47, 6700 aa, wageningen, netherlands a.p.j. mol environmental systems analysis group/environmental policy group, wageningen university, p.o. box 47, 6700 aa, wageningen, netherlands

this paper presents future trends of urban wastes and their impacts on the environment of african cities using plausible mitigation scenarios. to accomplish this, an integrated dynamic model for urban waste flows was developed, tested, calibrated and validated. its parameter sensitivity was analyzed. using population projection up to 2052 with different levels of technological implementation, p...

2017
Kyle Farrell

Although the urban transition is a universal event that unfolds in all countries, the determinants, patterns, and outcomes do not necessarily follow a uniform process. With the urban transition being basically completed in developed countries around the turn of the 21st century, the growth of cities today is almost entirely confined to developing countries. Still, much of our conceptual underst...

2015
Haixiang Guo Yijing Li Deyun Wang Xiaohong Chen Marc A. Rosen

With accelerating urbanization, urban competitiveness has become a worldwide academic focus. Previous studies always focused on economic factors but ignored social elements when measuring urban competitiveness. In this paper, a city was considered as a whole containing different units such as departments, individuals and economic activities, which interact with each other and affect its economi...

Journal: :journal of tethys 0

natural climatic conditions in urban areas can be changed by human physical environment. climate as a natural system and city as a human system have close mutual connections. urban population growth and consequent increase in urban physical expansion may lead to intensification in human activities and disturbances in the environment. this contributes to alterations in solar radiation, balance o...

Journal: :Remote Sensing 2016
Fang Liu Zengxiang Zhang Xiao Wang

Urban expansion form is the most direct manifestation of urban expansion in space. Although it has been widely and vigorously studied, relatively little attention has been paid to reveal its spatiotemporal characteristics at the administrative level over a long timeframe. In this study, 31 Chinese municipalities and provincial capitals were selected as subjects to identify the urban expansion f...

2009
Paul Beckman

Universal Design for Learning (UDL) aims to increase accessibility to learning by extending the concepts of Universal Design (UD). UD arose in the field of architecture and suggests that one can increase the accessibility of an architectural feature if certain considerations are made to the design of that feature prior to its construction. The essence of UDL is to extend accessibility of a lear...

Journal: :journal of health management and informatics 0
ozra nourafkan abbas yazdanpanah erfan kharazmi

introduction: the family physician program is one of the most important plans for increasing the equitable access and affordable health services. this study aimed to examine the performance of urban family physicians and associated factors in the third year of its implementation. method: a cross-sectional study was conducted on all family physicians (31 persons) working in the private and publi...

Journal: :آمایش سرزمین 0
سارا حبیبی دانشجوی دوره دکتری شهرسازی پردیس هنرهای زیبای دانشگاه تهران

spain has had so many evolutions in its urban planning system and it is one of the countries with regional system. regarding to its successful experience in this issue, this research tries to look over this system. in this respect, we will introduce the general characteristic of this country and will review urban system in its different levels. at the end, we will point to new urban acts and ac...

Journal: :IxD&A 2013
Vincenzo Del Fatto Gabriella Dodero

Nowadays, many cities around the world are trying to find smarter ways to manage challenges such as ensuring livable conditions in a context of rapid urban population growth. These cities are often referred to as Smart Cities. In the last years, researchers from many disciplines have contributed to the Smart Cities definition and implementation. In this paper we investigate how topics from two ...

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