نتایج جستجو برای: urban street
تعداد نتایج: 196957 فیلتر نتایج به سال:
Visual pollution is one of the problems of urban appearance that great negative influence on the quality of life of citizens. Some elements such as billboards and advertisements on building facades, canals and shafts for air conditioning, electricity and telephone cables, and gas pipes, façade deterioration, heterogeneity of new constructions, disruption of the historical skyline, extensions to...
Anthropogenic carbon dioxide (CO2) emissions from cities have significantly increased over the past several decades along with rapid urbanization. To what extent anthropogenic CO2 emissions generated from cities can be offset through conserving or increasing carbon (C) stored within urban areas themselves is a significant scientific question. The role of urban street trees in offsetting anthrop...
Smart Cities is a domain of great interest in the modern society. The aim of a smart urban environment is to increase citizens’ comfort and quality of life with minimum resources and power consumption and without affecting the natural environment. Street lighting is one of the main interests in such a smart environment. This thesis focuses on implementing a lighting control system that makes st...
Urban tree planting initiatives are being actively promoted as a planning tool to enable urban areas to adapt to and mitigate against climate change, enhance urban sustainability and improve human health and well-being. However, opportunities for creating new areas of green space within cities are often limited and tree planting initiatives may be constrained to kerbside locations. At this scal...
Waveguide analysis is used to predict power levels received in a microcellular system in an urban environment. An Urban street with tall buildings on both sides is modeled by a plate parallel waveguide made of rough plates. The distribution of power among the waveguide modes tends to concentrate in the low order modes, at large distances from the source antenna. The waveguide–based model predic...
The most common definition of a street child or youth is “any girl or boy who has not reached adulthood, for whom the street has become her or his habitual abode and/or sources of livelihood, and who is inadequately protected, supervised or directed by responsible adults” (Inter-NGO, 1985). UNICEF defines street children as, “those who are of the street and on the street.” “Children of the stre...
By creating enough parking places, cities may be able to lessen congestion and traffic disruption. Thus, the primary issue that frequently arises in urban areas is on-street parking. In Al- Diwaniyah city's streets, a common occurrence. order analyze characteristics, this study has concentrated on three congested sites: Al-Orzady Street, Al Saray Almusawreen Stree. Thus; field data were collect...
A radiosity model has been developed for calculating the sound distribution in urban streets with diffusely reflecting boundaries. In this paper I present the results of a parametric study by using the computer model. A typical urban element consisting of a major street and two side streets is analysed. The analysis is focused on the characteristics of sound pressure level and reverberation tim...
Urban ventilation plays an important role in regulating city climate and air quality. A numerical study was conducted to explore the ventilation effectiveness on the microclimate and pollutant removal in the urban street canyon based on the rebuilt Southern New Town region in Nanjing, China. The RNG k− ε turbulence model in the computational fluid dynamics (CFD) was employed to study the street...
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