Abstract: In this study, the method of changing the surface layer microstructure of cementitious composites by ultrasonic surface treatment at the early stage of hydration is introduced, and the formation mechanism of the gel phase ...

Abstract: A smart city plays an increasing role in citizens’ daily life. A smart city has six main components, namely smart mobility, smart economy, smart governance, smart living, smart environment, and smart people. For the past ...

Abstract: The p-type perovskite oxides La1-x Srx CoO3 are a promising group of complex oxide thermoelectric materials because of its higher Seebeck coefficient. In this paper, the La0.95 Sr0.05 CoO3 thin ...