نتایج جستجو برای: in urban areas

تعداد نتایج: 17018658  

2006
PETER ABELSON

This paper analyses the main causes of the growth in population and employment in urban areas in Australia. We find that two-thirds of the variations in growth rates between 1981 and 1991 are explained by four factors: an inland location, a reliance on primary sector production, a tourist orientation, and suburban growth. Tourism and suburban growth greatly increased both population and employm...

Journal: :Philosophical transactions. Series A, Mathematical, physical, and engineering sciences 2005
Stephen E Belcher

Concern over terrorist releases of harmful material has generated interest in short-range air-borne dispersion in urban areas. Here, we review the important fluid dynamical processes that control dispersion in the first kilometre, the neighbourhood scale, when much of the material remains within the urban canopy. Dispersion is then controlled by turbulent mixing and mean flow transport through ...

Journal: :Environmental Health Perspectives 1994
F P Jensen J Fenger

The Danish air pollution abatement is based by and large on emission control. Since the ratification of the international sulfur protocol of 1985, there has been a continuous tightening of the permissible sulfur content in fuels and of the maximum emissions from power plants. As a consequence, the total annual emission of sulfur dioxide (SO2) has been reduced from 450,000 tons in the seventies ...

2002
L. Matějíček

More accurate spatio-temporal predictions of urban environment are needed as a basis for assessing exposures as a part of environmental studies, and to inform urban protection policy and management. This paper is focused on modelling in the GIS to estimate air, water and soil pollution in urban areas. The basic environmental components are complemented by bio-monitoring, waste management and no...

Journal: :جغرافیا و توسعه ناحیه ای 0
رضا خسروبیگی برچلوئی براتعلی خاکپور مصطفی ایستگلدی رضا شمس الدینی احمد آفتاب

objectives: the present study is to assess overview on literature and social sustainability assessment and identification of its main components, while introducing the appropriate framework for choosing indicators with a systematic and integrated approach to assess and prioritize the amount of social sustainability in five areas of the city bandar turkmen pay. method: data collected through que...

Journal: :journal of tethys 0

natural climatic conditions in urban areas can be changed by human physical environment. climate as a natural system and city as a human system have close mutual connections. urban population growth and consequent increase in urban physical expansion may lead to intensification in human activities and disturbances in the environment. this contributes to alterations in solar radiation, balance o...

2014
Shan Khazendar Jessica Farren Hisham Al-Assam Hongbo Du Ahmed Sayasneh Tom Bourne Sabah Jassim

Ultrasound is one of the most widely used multipurpose imaging modalities that is ideal for monitoring and diagnosing early pregnancy events. The first sign and measurable element of an early pregnancy is the Gestational Sac (GS). Currently, the size of GS is manually measured from an ultrasound image of the GS. This paper argues that the Mean Sac Diameter (MSD) derived from the manual measurem...

The world is witnessing a dramatic shift of settlement pattern from rural to urban population, particularly in developing countries. The rapid Addis Ababa urbanization reflects this global phenomenon and the subsequent socio-economic and environmental impacts, are causing massive public uproar and political instability. The objective of this study was to use remotely sensed Landsat data to iden...

Journal: :برنامه ریزی و بودجه 0
اسمعیل ابونوری esmaiel abounouri دانشگاه مازندران فریدرضا ایرجی faridreza iraji سازمان بورس اوراق بهادار

the level of ecomomic (income or expenditure) inequality in khorasan province has been unknown. this paper tries to estimate and compare the trends of expenditure (income) inequality in khorasan province and the whole iran during 1971-2001 in two categories of urban and rural regions. for this purpose, inequality indices (gini coefficient and income deciles) were estimated parametrically. the r...

  Abstract   Background: Inequalities in health are ever increasing among different communities   of either affluent or disadvantaged especially in urban areas. To identify and address inequalities in health and its determinants among societies, urban health equity assessment and response tool (Urban HEART) in four 'policy domains' related to social determinants of health, has been developed by...

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