A parametric study of the natural vibration and mode shapes of PEM fuel cell stacks| Experimental and theoretical investigation of the effect of rotating circular cylinder speed on the lift and drag forces| CFD model using for natural ventilation study in the local building of hot-humid climate in Vientiane Capital, Lao PDR| Renovation of NZCB in a poor solar irradiation zone: an investigative case study of residential buildings in Chongqing urban areas| Exergy analysis for combined regenerative Brayton and inverse Brayton cycles with regeneration after the inverse cycle| Distributed energy resources systems towards carbon-neutral urban development: a review and application| The role of local renewable energy sources in regional energy production: the case of South-East Finland