the purpose of this study was analyzing the skill of khoram abad township wheat farmers regarding mechanization. this research was applied research and, based on methodology, was descriptive and correlative. wheat farmers of khoram abad township, (n=18597) were considered as statistical population. based on krejcie and morgan table, 377 ones were selected as sample. in this study, cluster rando...

What does this article offers? It raises questions on the assumptions of efficiency in agriculture, traces the history of the logic of scale replacing logic of scope, analyses its impact on sustainability and offers a framework to discern technical contradictions of efficiency across different sectors and find a balance for sustainability. It delves with a few basic questions: First, what is th...

This paper proposed analytical solutions for the buckling analysis of rectangular single-layered graphene sheets under in-plane loading on all edges simply is supported. The characteristic equations of the graphene sheets are derived and the analysis formula is based on the nonlocal Mindlin plate. This theory is considering both the small length scale effects and transverse shear deformation ef...

This paper proposed analytical solutions for the buckling analysis of rectangular single-layered graphene sheets under in-plane loading on all edges simply is supported. The characteristic equations of the graphene sheets are derived and the analysis formula is based on the nonlocal Mindlin plate. This theory is considering both the small length scale effects and transverse shear deformation ef...

In the present study, the finite element method is developed for the static analysis of nano-beams under the Winkler foundation and the uniform load. The small scale effect along with Eringen's nonlocal elasticity theory is taken into account. The governing equations are derived based on the minimum potential energy principle. Galerkin weighted residual method is used to obtain the finite eleme...