نتایج جستجو برای: bioclimatic deficiency
تعداد نتایج: 138371 فیلتر نتایج به سال:
We propose a new and relatively simple modification to extend the utility of bioclimatic envelope models for land-use planning and adaptation under climate change. In our approach, the trajectory of vegetation change is set by a bioclimatic envelope model, but the rate of transition is determined by a disturbance model. We used this new approach to explore potential changes in the distribution ...
The aim of this study is to predict the energy generated by a solar thermal system. To achieve this, a hybrid intelligent systemwas developed based on local regression models with low complexity and high accuracy. Input data is divided into clusters by using a Self Organization Maps; a local model will then be created for each cluster. Different regression techniques were tested and the best on...
in this paper, some results of singh, gopalakrishna and kulkarni (1970s) have been extended to higher order derivatives. it has been shown that, if $sumlimits_{a}theta(a, f)=2$ holds for a meromorphic function $f(z)$ of finite order, then for any positive integer $k,$ $t(r, f)sim t(r, f^{(k)}), rrightarrowinfty$ if $theta(infty, f)=1$ and $t(r, f)sim (k+1)t(r, f^{(k)}), rrightarrowinfty$ if $th...
background : iodine deficiency produces the spectrum of iodine deficiency disorders (idds) including endemic goiter, hypothyroidism, cretinism and congenital anomalies. other factors, including goitrogens and micronutrient deficiencies may influence the prevalence and severity of idds and response to iodine supplementation. an ssociation between zinc and goiter has previously been reported. met...
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