The review presents the development of an approach constructing approximate solutions to complicated physics problems, starting from asymptotic series, through optimized perturbation theory, self-similar approximation theory. close interrelation underlying ideas these theories is emphasized. Applications developed are illustrated by typical examples demonstrating that it combines simplicity wit...

The purpose of this study was to develop a model for the estimation of rock mass classification of Sarvak limestone in the Bakhtiari dam site, south-west (SW) Iran. Q system had been used as the starting point for the rock mass classification. This method was modified for sedimentary rock mass which is known as Qsrm. Because Qsrm considers a wide range of rock mass propert...

in carrying out research in mythology and literary works in the world, we see some works in which the subject matter is a combat between close relatives; especially father and son. these stories are in different forms like myth, tragedy, epic, fiction and religious narratives but they are close together in structure and basic plot and have special features peculiar to them. but, what's the...

Clustering was used to divide dryland farming areas in western Iran into homogeneoussub-regions to identify dryland farming potential, considering drought impacts. Clusteringutilized eight algorithms/four indices to detect optimal number of clusters. Ward’s algorithmvalidated by Silhouette index, produced the best result by detecting 7 dryland farming clusters.Based on similar P/ETo values, fou...