According to Vygotsky’s Sociocultural Theory， learning is based on interaction among people. Parents， peers， and cultural ......

The Hamiltonian formalism for surface waves and the mild-slope approximation were empolyed in handling the case of slowl......

Let{fX(t),t≧0}be a centered stationary Gaussian process with correlation r(t)such that 1-r(t)is asymptotic to a regular......

Li和Kong^[1]提出了一类基于进入过程的具有多种独立保单的风险模型并在时间趋于无穷大时对保险公司盈余资产的渐进分布作了研究．该......

通过对我校学生五项身体素质测验的追踪研究发现,学生身体素质的发展不均衡,成绩不稳定,并且还有逐年下降的趋势;分析了产生这些问......

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This paper addresses the free transverse vibrations of thin simply supported nonhomogeneous isotropic rectangular plates......

Pipes are often used to transport multiphase flows in many engineering applications.The total fluid flow density inside ......

应用压电陶瓷振动钻削装置，采用变进给量振动钻削的方法加工微孔。通过理论分析得出：变进给量振动钻削有利于断屑，使切屑体积小，排屑顺......