新型职业农民培育工程在乡村振兴中的重要作用日益凸显。基于山东省新型职业农民问卷调查和访谈,运用2次不同参照水平的多分类Logi......

自1996年以来本文作者连续观察502例急性出血性中风住院患者首次发病时间，发现出血性中风的发病时间存在着周期性差异。......

A new method for image segmentation based on pulse neural network is proposed. Every neuron in the network represents on......

Aiming at measurement of granularity size of nonmetal grain, an algorithm of image segmentation and parameter calculatio......