Grain refinement and eutectic Si modification of hypoeutectic Al-Si alloys are crucial to improving their mechanical properties. In this paper, the effects of a novel Al-3Ti-4.35La master alloy on the morphology of eutectic Si in and mechanical properties of hypoeutectic Al-7Si alloy were...

In this paper, we conduct the simple comparative static analysis of the environmental and economic effects of the government and producer services sector's training of rural-urban migrants. We mainly focus our attention on environmental issues and reach the following conclusions: When the...