A novel scalar ground motion intensity measure (IM), termed the energy-frequency parameter, is proposed based on Hilbert-Huang transform. To validate effectiveness of IM, correlation analysis between engineering demand parameter (EDP) and performed using 1992 recorded motions, in which EDP maximum inter-storey drift structures obtained by nonlinear time-history analysis. Results show that has a...

in this paper, considering the importance of incoming flow turbulence intensity into combustion chamber, tripping wire effect on the flow wake has been experimentally investigated within a linear compressor cascade. to do this, two wires were implemented along each blade and their effects on average velocity, turbulence intensity and vortices frequencies at reynolds number 45500 were accurately...

results the results show the artificial lighting obtained by difference methods of the overall lighting from natural lighting in closed blinds mode equal to 266 lux and night lighting 283.5 lux that they have no significant differences with each other (p = 0.269). as well as the illumination intensity obtained from a standard grid method is 283.5 lux and illumination intensity based on luminair...