International ConferenceEnhanced diffusion in polymer electrolyte membrane fuel cell using pulsating flow Hwang, Y.-S.a, Cha, S.-W.a, Kim, S.-Y., Ji, S., Lee, D., Choi, H., Choi, J.W., Seo, J.-H., Kim, M.S., Lee, D.-Y. ECS Transactions Volume 16, Issue 2 PART 2, 2008, Pages 1365-1375