نتایج جستجو برای: Segregation

تعداد نتایج: 27520  

Urban segregation has been a problem of many cities of the world. Many researchers have interested in the urban segregation issues. Urban segregation has strongly concentrated poverty and created underclass. Different types of urban segregation exist, including income and racial or ethnical segregation, and depending on the contextual mechanisms within a city. To understand and plan a better co...

شکاری, محمد, محمودی, محمود, مدنی, عبدالحسین, هاشمی‌نظری, سعید, هلاکوئی‌نائینی, کورش,

Background & Objectives: One of the major questions in epidemiological and social science researches is studying the relationship of the living place with social and health outcomes. In this study, we measured segregation indices for a number of important socioeconomic indices using the 2006 Iranian census data to find out whether residential segregation is correlated with the available differe...

Journal: :iranian journal of public health 0
ss hashemi nazari m mahmoodi ma mansournia k holakouie naieni

background: there is a great amount of literature concerning the effect of racial segregation on health outcomes but few papers have discussed the effect of segregation on the basis of social, demographic and economic characteristics on health. we estimated the independent effect of segregation of determinants of socioeconomic status on infant mortality in iranian population. methods: for measu...

In this study, an Eulerian-Eulerian multi-fluid model (MFM) was used to simulate the segregation pattern of a conical fluidized bed containing ternary mixtures of equidensity TiO2‌ particles. Experimental 'freeze–sieving' method was employed to determine the axial mass fraction profiles of the different-sized particles, and validate the simulation results. The profiles of mass fraction for larg...

Journal: مدیریت شهری 2015
Ali Akbar Taqvaee, Mehdi Bahram Poor, Mohammadreza Bemanian,

Segregation has been widely discussed by social scientists and especially by urban geographers and planners over the past decades. However, regardless of their focus, most of these studies view segregation as an obvious case of spatial injustice. I argue that this implicit relationship between segregation, (in) justice, and space needs to be reexamined. This paper approaches this task by review...

Abstract The effect of the solid–wall boundary condition on the segregation behavior of a sand ternary mixture differing in size but having the same proportion has been investigated in a gas–solid bubbling fluidized bed. A multi-fluid computational fluid dynamics model incorporating the kinetic theory of granular flow has been used. The mass fraction profiles of the different-sized partic...

Hamid Reza Norouzi, Navid Mostoufi, Rahmat Sotudeh-Gharebagh

A comprehensive mathematical model based on the discrete particle model and computational fluid dynamics was utilized to investigate mixing and segregation of particles in fluidized beds at high pressure. To quantify the extent of mixing in the bed, the Lacey mixing index was used. Simulations were carried out with different mass fractions of small particles at various pressures ranging from 1 ...

Journal: :journal of chemical and petroleum engineering 2012
hamid reza norouzi rahmat sotudeh-gharebagh navid mostoufi

a comprehensive mathematical model based on the discrete particle model and computational fluid dynamics was utilized to investigate mixing and segregation of particles in fluidized beds at high pressure. to quantify the extent of mixing in the bed, the lacey mixing index was used. simulations were carried out with different mass fractions of small particles at various pressures ranging from 1 ...

  Abstract. Spatial has always been an inherent component of demography, and demographic processes are inherently spatiotemporal. Recognizing the importance of spatial in general and spatial segregation in particular in demographic analysis has created new positions in demography and its conceptual and analytical frameworks. The notion of spatial segregation refers to the distribution of social...

Journal: :به نژادی گیاهان زراعی و باغی 0
مسلم بهمن کار دانشگاه تهران، پردیس ابوریحان، گروه علوم زراعی و اصلاح نباتات،دانشجوی دکترای اصلاح نباتات-ژنتیک بیومتری سید احمد سادات نوری استاد گروه علوم زراعی و اصلاح نباتات، پردیس ابوریحان، دانشگاه تهران، پاکدشت، ایران محمد مهدی مرتضویان استادیار گروه علوم زراعی و اصلاح نباتات، پردیس ابوریحان، دانشگاه تهران، پاکدشت، ایران

sometimes when hybridization in quantitative traits due to occurring of transgressive segregation phenomena in f2 and other generations, phenotypes are observed that are outside the scope of their parents. transgressive segregates can be fixed via selfing and selection. classical genetic and qtl studies know complementary action of genes as the main reason for the occurrence of the above phenom...

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