Department of Chemical and Biochemical Engineering;
University of Western Ontario;
London;
Ontario;
N6A 5B9;
Canada;
Department of Chemical Engineering;
Kunming University of Science and Technology;
Kunming;
Yunnan 650224;
China;
Circulating fluidized bed riser; Wavelet transform; Soft threshold denoising; Time delay embedding; Correlation dimension; Kolmogorov entropy;