the main objective of the current study is to investigate the impacts of environmental evolutionsat global scale on iran’s environmental planning. thereby, all political movements towards solving environmental issues in iran were accurately reviewed to find out the impressibility of the events by the global environmental evolutions. the findings indicated that iran has joined the conventions an...

The hypothesis of the study consists detailed consideration process accumulation wagons, taking into account arrival individual groups determination options for freight trains with a fixed train schedule and substantiation analytical dependencies that determine cost wagon-hours accumulating obtaining new scientific results on this basis. Their practical use will make it possible to more accurat...

In this article we study the existence of positive solutions for mpoint dynamic equation on time scales with p-Laplacian. We prove that the boundary-value problem has at least three positive solutions by applying the five functionals fixed-point theorem. An example demonstrates the main results.