introduction the city population, in particular at the industrialized cities and centers of provinces, has increased dramatically in iran during recent decades. arak city is among of those industrialized cities as a centers of markazi province which has experienced a fast increase in population. this changes in population numbers tend to increase in consuming water resources as well as increasi...

the objective of this study was to explore the application of hybrid artificial neural network methods to predict heavy metals in rainwater based on major elements. measurements of the heavy metals pb, cu, zn, as, ni, hg, and fe in soluble rain fractions were performed in rainwater collected at the arak plain during the rainy seasons of 2012. in the soluble fractions, the concentrations of the ...

„Bo ja wiem?” (Jerzy Jarzebski, Gry poetyckie i teatralne, Wydawnictwo Literackie, Krakow 2018, ss. 396)

Jürg Arnold, Die Gewerbegerichte in Württemberg (1891 – 1927), Ostfildern: Arnold 2015. 396 S., 24 Abb. Geb. € 49,–