نتایج جستجو برای: development of cities
تعداد نتایج: 21251000 فیلتر نتایج به سال:
Variability of urban fog during the last 50 years in Anhui Province (China) and its possible underlying mechanisms are analyzed based on daily meteorological records from 78 stations. The effects of urban development and aerosols on fog formation are discussed through an analysis of trends in fog frequency and comparison with a number of meteorological parameters, coal consumption and vehicle u...
Since its implementation of economic reforms and open door policy, China has rapidly transformed itself from a socialist planned economy to socialist market economy. Guangzhou and Shanzhen are earmarked as the pioneering and experimental cities within the network of cities in Pearl River Delta Region in implementing various market reform measures. Taking advantage of its close proximity with Ho...
The spatial distribution of cities, as well as their management in Iran, has not taken place within the framework of a national program. Hence, the problems caused by the rapid extend of urbanization have complex dimensions. The present study using analysis of census data seeks to show the status and changes of urbanization in Iran. The results show that the urban population of the country has ...
For several decades,Iranian cities are experiencing major and fast urban growth. At the top of them is Tehran, Iran’s capital city, with doubled population in 30years from approximately 6 to 12.5 million in 2016. Undoubtedly such a magnificent raise in population has increasedthe need for settlements and the city has to respond to it. Today, Tehran,is the center for such exogenous development w...
Following the complex economic and technological changes after the industrial revolution, there was a dramatic change in the size of the cities and the proportion of the population living there which has led to socio-economic damage and adverse environmental impacts, including destruction and alteration of agricultural land use, pollution of air, water and soil. In the meantime, the physical de...
in the area of automotive engineering there is a tendency to more electrification of power train. in this work control of an induction machine for the application of electric vehicle is investigated. through the changing operating point of the machine, adapting the rotor magnetization current seems to be useful to increase the machines efficiency. in the literature there are many approaches wh...
Rapid urbanization has brought environmentally, socially, and economically great challenges to cities and societies. To build a sustainable city, these challenges need to be faced efficiently and successfully. This paper focuses on the environmental issues and investigates the ecological approaches for planning sustainable cities through a comprehensive review of the relevant literature. The re...
objective: the role and importance of urban green space in urban life and physical stability and effectiveness of the system returns to different urban ecological, economic and social, it is undeniable, as far as public green space per capita in cities and urban management planning program is considered one of the main discussion. urban green spaces should be one of the most essential factors t...
With the rapid economic growth and development, the problem of environmental pollution in China’s cities is becoming increasingly serious, and environmental pollution takes on a regional difference. There is, however, little comprehensive evaluation on the environmental performance and the regional difference of strictly-environmental-monitored cities in China. In this paper, the environmental ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید