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Based on finite element volume method and fully implicit multi-grid coupling algorithm, with a certain distortion degree of the static cascade flow field is solved in three-dimensional steady-state under subcritical, critical and supercritical flow state. The paper analyses and calculates the developmental characteristics of the secondary flow in the lower wall of the cascade channels and the aerodynamic...
Due to the uncertainty of transmission opportunities between mobile nodes, Delay Tolerant Networks (DTN) routing exploits the opportunistic forwarding mechanism. Optimal policies for opportunistic forwarding are crucial to maximizing the message delivery probability while reducing the forwarding cost. In this paper, we investigate the optimal opportunistic forwarding policies for the energy- constrained...
In this paper, partial least squares regression is introduced. And the modeling steps and the realization of the modeling algorithm for building a PLSR2 model are given. Moreover, a numerical example is presented.
The linear structural equation model is introduced in this paper. And as an example of the linear structural equation model, a new customer satisfaction indices model is built, Sas procedure for parameter estimation is given, and the model is fitted by using sampling data and the results are evaluated.
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