This paper uses ridge estimation method to solve the potential ill - conditioned problem in semiparametric regression model.

针对半参数回归模型求解过程可能出现的法方程病态问题,提出了用岭估计原则改进半参数模型的求解.

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This model presents the modified nodal approach ( MNA ) equations instead of the equivalent circuit of the structure.

同时,它以描述系统的改进节点法方程 ( MNA ) 代替了具体的等效电路.

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Based on the force - method equation , the stiffness matrix and fixed - end nodal displacement and force vector derived.

在力法方程的基础上,给出了组合梁单元的刚度矩阵、杆端位移向量及杆端荷载向量并建立了刚度方程.

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