Optimum configurations Channel flow 1 Climate change 1 Computational fluid dynamics 1 Computational fluid dynamics modeling 1 Configuration 1 Configuration designs 1 Double barriers 1 Electron reservoir 1 Gas channels 1 Gas flow channel 1 Gases 1 Heterojunctions 1 Hydrogen 1 Hydrogen powered vehicles 1 Microporous layers 1 Nano-structured 1 Optimal configuration 1 Optimum 1 Polyelectrolytes 1 Polymer electrolyte membranes 1 Power output 1 Proton exchange membrane fuel cells (PEMFC) 1 Resonance tunneling 1 Resonant tunneling 1 Semiconductor quantum wells 1 Serpentine channel 1 Solid electrolytes 1 Temperature 1 Thermoelectric 1