Gradient biomaterials are considered as preferable matrices for tissue engineering due to better simulation of native ti......

为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......

Based on the matrix representation, a new method is proposed to calculate the partial derivatives of the likelihood prob......

Mixing of freshwater and seawater creates the well-known salinity gradients along the estuaries. In order to investigate......

<正> 文中提出的四边形非协调模元（QM5）不但改善了双线性元（Q4）的数值性质,而且又适应于不规则网格的计算,且对应力和位移的 L2模有丰......