Abstract: AbstractHemihydrate gypsum, as a binding material for gypsum-based lightweight mortar, undergoes two stages in the hydration process: induction period and reaction period. However, in previous research, a third stage ...

Abstract: This paper presents a novel pressureresistant oilimmersed proportional actuator with a magnetic grid magneticisolated ring (MGMR) on its singlepiece sleeve. A twodimensional finite element method is used to establish the ...