نتایج جستجو برای: increasing expansion of cities

تعداد نتایج: 21187370  

Journal: :Land 2022

As the key tool for land use management in China, planning (LUP) is characterized by advantage of being state-led, quota-oriented, and easily monitored. Nevertheless, increasing research has doubted its effectiveness, particularly controlling urban expansion, while few studies have empirically confirmed it. To this end, we construct a constraint index (PCI), supported quota, evaluating pressure...

Journal: :فصلنامه رفاه اجتماعی 0
اصغر ضرابی asghar zarrabi مصطفی قدمی mostafa ghadami محمدرضا کنعانی mohammad reza kanani

introduction: due to irregular growth and expansion of cities, especially in developing countries, various issues and difficulties have arisen in different economic, social and ecological fields and various measurements and approaches in order to supply desirable conditions for today and future generations. healthy city approach is one these approaches as today it’s a new mechanism proposed by ...

1998
Craig A. Tracy Harold Widom

This paper is concerned with certain connections between the ensemble of n × n unitary matrices—specifically the characteristic function of the random variable tr(U)—and combinatorics—specifically Ulam’s problem concerning the distribution of the length of the longest increasing subsequence in permutation groups—and the appearance of Painlevé functions in the answers to apparently unrelated que...

2017
Eric Cator Leandro P. R. Pimentel

The interplay between two-dimensional percolation growth models and one-dimensional particle processes has been a fruitful source of interesting mathematical phenomena. In this paper we develop a connection between the construction of Busemann functions in the Hammersley last-passage percolation model with i.i.d. random weights, and the existence, ergodicity and uniqueness of equilibrium (or ti...

The fast growth of urbanism in Iran throughout the last half-century resulted in upholding the expansion of cities as well as the promotion of constructions thereof. Of significant problems and challenges Iran’s cities and metropolises ,in particular, are exposed to, is the failure of urban development plans in control of city height and density. A matter which has led to 100% expansion of the ...

With the increasing expansion of urbanization and the increase in the population of urban dwellers and the resulting problems, it is becoming increasingly necessary to provide facilities for the well-being of citizens. Today, the importance and role of urban furniture in urban service and beautification is not hidden from anyone, and urban furniture is one of the essential and inseparable compo...

2016
Justin L. Herrmann William D. Shuster Audrey L. Mayer Ahjond S. Garmestani Dustin L. Herrmann

Shrinking cities are widespread throughout the world despite the rapidly increasing global urban population. These cities are attempting to transition to sustainable trajectories to improve the health and well-being of urban residents, to build their capacity to adapt to changing conditions and to cope with major events. The dynamics of shrinking cities are different than the dynamics of growin...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند - دانشکده کشاورزی 1390

abstract this study is carried out to determine the chemical composition in the three vegetative stages of the haloxylon sp., degradation parameters, with adding naoh and ca(oh2 ). for this purpose, in may and october and january 2010 enough some haloxylon sp. of the ammary area was prepared. crude protein and ash percentage are decrease, neutral detergent fiber percentage with pragress stage ...

Journal: :جغرافیا و توسعه فضای شهری 0
براتعلی خاکپور محسن رستگار رضا ویسی راضیه السادات میرجعفری سجاد احمدی

extended abstract 1. introduction after industrial revolution, complex economic and technical developments led to wide changes in the size of cities, the proportion of the population in urban areas, and the growth rate of urbanization (johnson, 1998). more than half of the world population currently lives in urban areas and the uncontrolled expansion of cities is becoming a global concern. it i...

المدرسی, سید علی, دوستی ایرانی, لیلا, رجایی, محمد علی, شهبازی, میثم,

Development of cities and urbanization and the gradual increase in the number of large cities in the world, especially in developing countries, on the one hand, and expansion of cities, centralization and accumulation of population and the enhancement of economic and environmental burden on them, on the other hand, while brining the cities in the foreground, have resulted in the cities’ adoptin...

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