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Despite the recent introduction of mass detection techniques, ultraviolet detection is still widely applied in the field of the chromatographic analysis of natural medicines. Here, a neural network cascade model consisting of nine small artificial neural network units was innovatively developed to predict the chromatographic sequence of natural compounds by integrating five molecular descriptors as...
The monitoring of deformation including the surface settlement, vault settlement, convergence and surrounding rocks displacement, etc. has been performed for a real twin tunnel with super-large-span, small-spacing and overlying a high voltage tower during the tunnel construction in Shenzhen of China, and the deformation laws of the tunnel are analyzed. Furthermore, the engineering methods to control...
The deformation characteristic of the overlying highvoltage tower in the construction process of a very complex road tunnel project in Shenzhen of China is analyzed by use of the finite element analysis software MIDAS/GTS. The deformation Laws, such as there is the certain quantitative relationship between the tunnel vault and overlying tower foundation, are obtained, it is showed that the laws are...
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