in this paper, the non-linear dynamic response of novel steel sandwich panel with hollow i-core subjected to blast loading was studied. special emphasis is placed on the evaluation of midpoint displacements and energy dissipation of the models. several parameters such as boundary conditions, strain rate, mesh dependency and asymmetrical loading are considered in this study. the material and geo...

In this study, the window network data envelopment analysis (WNDEA) model will be proposed, that is capable to be used in the presence of panel data. Additionally, the proposed model is applied to evaluate the dynamic efficiency of 5 investment companies in Tehran stock exchange during the period from 2013 to 2017.

Individuals or criminal organizations carry out various activities in all countries of the world with illegal methods to gain unfair economic benefits. With theft, bribery, and fraud being lead, many types crimes disrupt social order society, damage mutual trust between individuals, feed informal economy. This study aims determine relationship socioeconomic factors. Within scope study, panel da...