in most industrial zones, electric energy is one of the most important energy sources. since electrical motors are the main energy consumers of industrial factories, consumption optimization in these motors can be considered as a main option related to energy saving. one very effective way to reduce the consumption of these equipment is to use a motor speed controllers or drives. since the loss...

in 1930s, the idea of providing general welfare and welfare state appeared in industrial countries due to the belief in the ability of left forces in solving misfortunes that people entangled in; because of financial crisis in industrialized societies, expanded poverty, starvation and epidemic diseases which led millions of people to the hopelessness. welfare states achieved outstanding success...

Industrial welfare history presents important challenges to developmental state theories in “late” industrialization. This article expands the debate by examining how nation-states create statutory welfare by addressing institutional variety beyond markets. It is simplistic to argue linear growth of national welfare or of states autonomously regulating markets to achieve risk-mitigation. I cont...