In this paper, we will use the maximum principle to give a new proof of the gradient estimates for mean curvature equations with some oblique derivative...
人类历史上曾经有7000多种植物应用于农作物生产(FAO,1998).但是现在只有150个植物物种用于栽培,其中有12种作物为人类提供了近75%的食品,而超过世界50%的食物来源于其中4种作物(Bermejo and Leon,1994).Prescott-Allen和Prescott-Allen(1990)的研究表明,...
In an MIS field effect transistor having a gate electrode formed on a first semiconductor layer which is a polycrystalline silicon film on an insulating...