in order to present a new and high performance structure of pem fuel cell and study the influence of the flow direction and distribution on the rate of reactants diffusion, three novel models of vertical reactant flow injection into the anode and cathode reaction area field have been introduced. they consist of one inlet and two inlets and also a continuous channel. the governing equations on t...

We will consider the cavity shown in Fig. (2.1) which has rotational symmetry about the z axis and is excited by the beam current, IB, passing through the gap. For the time being, we will consider only one mode of excitation for the cavity; namely, the mode where the magnetic field ~ B is azimuthal around the beam direction as shown. The current IL flows in the outer cavity wall in the directio...

Mohaddeseh Safarpoor Nikoo Langroodi was born in Langrood, Guilan, I.R. Iran. She received B.S. in chemistry from Shahid Beheshti University (2006) and his M.S. in organic chemistry from University of Guilan (2010) under the direction of Professor Farhad Shirini. After two years, she began her Ph.D. studies at University of Guilan under supervision of Professor Farhad Shirini. Her current resea...