Its not meaningful let them aside, not wanting to give an end to this reformed speech.We get together in the old childhood house, we feel its hand under our steps, we give it back to the roots the origin of our feet, we explore the silence of the halls, the cracks on the walls and, inflaming the nostril, relive the curdle sighs and the whispers of
Rapid growing of population, limitation of space, economic and social parameters are reasons that have led to the construction of tall buildings.On the other hand, due to invention of strong and lightweight materials, tall buildings had low damping ratio and long vibrational periods.For this reasons, it is necessary to investigate and analyze tall
The phase boundary structure of (K,Na)NbO3 piezoelectric ceramic was modified by doping with Bi(Na,K,Li)ZrO3 and BiGaO3 through normal solid-state sintering.Rietveld refinements by X-ray diffraction revealed that the RASH GUARDS Bi(Na,K,Li)ZrO3/BiGaO3 co-doping in (K,Na)NbO3 led to a multi-phase structure at room-temperature, effectively moving the