A parametric study of assembly pressure, thermal expansion, and membrane swelling in PEM fuel cells.rnPerformance of photovoltaic systems: green office's case study approach.rnEarthing system for stand alone PV solar house.rnTurbulent flow heat transfer and pressure loss in a double pipe heat exchanger with triangular fins.rnEvaluation of a pilot-scale wood torrefcaction plant based on pellet p…