The multiphase reaction process of pressure leaching is mainly carried out in the liquid phase. Therefore, gas holdup is......

针对切削颤振信号的非线性、非平稳特征，提出基于 Hilbert-Huang 变换的切削颤振识别方法。通过对颤振信号进行经验模态分解（EMD）获得......

本文根据“节点—场所模型”,在对城市轨道交通站点进行分类的基础上,对新加坡各类型站点地区的用地性质、开发强度、接驳交通等开......