基于微磁理论的镀层工件裂纹检测仪-工件,裂纹,检测仪,应用方案-机电商情网技术中心 关键词：镀层零件；微磁检测；二次梯度 [gap=557]Key words: parts with plating layer; micromagnetic detection; double gradient
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考虑了二次梯度项的非线性双重介质模型。
A nonlinear dual-porosity model considering a quadratic gradient term is presented.
根据无约束最优化问题的梯度算法，提出了二次梯度算法，并证明了其收敛性。
In this paper, the gradient computational algorithm about unconditional extreme value is given.
考虑了二次梯度项影响的非线性径向流动问题的无限大地层和有界地层渗流模型。
The models of the nonlinear radial flow for the infinite and finite reservoirs including a quadratic gradient term were presented.
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