نتایج جستجو برای: social and urban structure
تعداد نتایج: 17123965 فیلتر نتایج به سال:
now days, citizens safety in urban spaces is one of the most important worries of urban managers. this may be reflected in different characters of urban spaces such as physical, social and economical and even political characters. with regard to increasing crimes and complexities of urban spaces, trying for achieve to sustainable, healthy and good cities mean in providing the safety environment...
abstract part one: the electrode oxidation potentials of a series of eighteen n-hydroxy compounds in aqueous solution were calculated based on a proper thermodynamic cycle. the dft method at the level of b3lyp-6-31g(d,p) was used to calculate the gas-phase free energy differences ,and the polarizable continuum model (pcm) was applied to describe the solvent and its interaction with n-hydroxy ...
Urban areas today face a number of structural problems that have a lot of impact on the extent of damages. These changes are evident in most cases, in addition to the physical dimensions, in both social and economic dimensions, one of which is exhausting. The concept of urban resilience, considering the extent of these changes, seeks to predict the damage, as easily as to stabilize a system tha...
one of the most important factors in study of project’s , is the study of environmental opportunities factors the permanent study of environmental opportunity factors . the study of permanent environmental changing and knowing golden threats’ cooperate with possible threats and at the result in structure forming and future skeleton of organization has a vital effects . the petrochemical industr...
Following Partition and the formation of Pakistan people have adapted to tremendous changes in their material circumstances and in their political, economic and social life, particularly in urban areas. Important resources that have helped support urban adaptation are the institutions of the family and its reproduction through arranging marriages1. Despite considerable change in the morphology ...
in order to respond to the problem of urban decline, different approaches have been defined in sucha way that urban regeneration approach became current in the 1980s (and more wildly after 1995) as a replacement for urban renewal. urban regeneration is the holistic process of reversing economic, social and physical decay in areas where it has reached a stage when market forces alone will not su...
Today, the number of elderly people is increasing due to various factors such as changing life expectancy and population distribution. On the other hand, this period of life requires special needs such as care and health to other external and environmental factors. The social phenomenon of the city is not separate from this population group, ie the elderly, and urban planners using environmenta...
growing demands and requires of high data rate systems cause significant increase of high frequency systems for wideband communication applications. as mixers are one of the main blocks of each receivers and its performance has great impact on receiver’s performance; in this thesis, a new solution for ku-band (12-18 ghz) mixer design in tsmc 0.18 µm is presented. this mixer has high linearity a...
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