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A new hybrid model which combines wavelets and Artificial Neural Network (ANN) called wavelet neural network (WNN) model was proposed in the current study and applied for time series modeling of river flow. The time series of daily river flow of the Malaprabha River basin (Karnataka state, India) were analyzed by the WNN model. The observed time series are(More)
The research is in an attempt to reduce the ground pressure fluctuations when hard rock TBM tunneling and improve TBM geologic adaptability in complex geological environments. Firstly the theoretical ground pressure model is established through mechanical analysis of gripper supporting system, and the mathematical model of gripper cylinder hydraulic system(More)
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