The cross flow in proton exchange membrane fuel cells (PEMFCs) plays an important role in changing the transport pattern and performance. In this study, three-dimensional numerical simulations are carried out to investigate the effect of induced cross flow on the flow pattern and performance of...

Darrieus type hydrokinetic turbines (HKTs) with fixed pitch blades, like their wind turbine equivalents, exhibit poor starting torque whether blades are straight, troposkein or helical. High solidity improves starting torque to some extent but reduces peak efficiency. Straight blade turbines...

The importance of capital inflows and outflows is something that country needs and encourage it to help the economies of countries to grow at a steady rate. The purpose of this study is to provide a framework and to explain what main drivers of FDI in the world are and what policies should be...