نتایج جستجو برای: spatial balance in distribution percapita
تعداد نتایج: 17108998 فیلتر نتایج به سال:
This research aimed to investigate plant species diversity and spatial distribution of five dominant species i.e. Phragmites australis, Tamarix meyeri, Aeluropus littoralis, Aeluropus lagopoides and Cynodon dactylon in Hamoon international wetlands in 2015. To this end, a randomize-systematic sampling method was used according to w pattern by four strip transect at 5000 m2 at each station. The ...
due to deep, complex and everlasting interaction between precipitation and climatic elements-factors, there are changes and varieties in both time and space dimensions. so that climate experts and related scientists take their attentions to this phenomenon. an approach to do this kind of investigations is to describe spatial variations based on spatial statistics. in this paper the main object ...
Background: Improper distribution of medical care creates access inequality to the services in developing countries. This study aimed at investigating inequalities in access to medical facilities in Kermanshah's Metropolitan Area. Materials and Methods: The study was an applied and descriptive – analytical one. Due to the spatiotemporal nature of current research, Geographic Information Sys...
Background and Objectives: The aim of this study was to assess the geographical distribution of Congenital Hypothyroidism (CH) in Iran using Geographic Information System Methods: The incidence of Congenital Hypothyroidism in each city and province calculated based on national CH screening program and then the map of its distribution was depicted. The spatial distribution of CH was assessed ...
to control the nonlinear numerical instability, throughout the time evolution of the eulerian form of the nonlinear rotating shallow water equations, it is necessary to add numerical diffusion to the solution. it is clear that, this extra numerical diffusion degrades the accuracy of the numerical solution and should be kept as small as possible. in a conventional approach a hyper-diffusion is u...
In order to determine the effect of climatic factors on distribution of Artemisia aucheri and Artemisia sieberi in Isfahan province, thirty nine most important climatic elements in ecological condition of these species were selected. Using a factor analysis method, the most important factors in distribution of these species were determined. These factors which cover 92.3% of the total variance ...
The groundwater quality research is one of the important and its pollution control was included insome research literatures. Ground water quality has spatial and temporal variation so classical statisticscould not account these variations at the regional scale researches. This study usedgeo-statisticalmethodsto optimize an interpolation method in order to estimate the spatial distribution of pH...
Technology Transfer and National Efficiency in Developing Countries: The Role of International Trade
Productivity differences are viewed as an important explanation of cross-country percapita income differences. The recent literature has put forward two principal explanations for differences in productivity, technology transfer and absorptive capacity. This paper finds evidence that both are important for explaining productivity differences in developing countries and that international trade ...
Introduction Geographical situation of Iran is a place for interacting many physical and human processes which lead to specific precipitation climatology in the country. The month to month variation of precipitation is one of the features which the precipitation climatology may reflect due to tempo - spatial characteristics. In fact, monthly distribution of precipitation is one of precipitati...
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