China
Jiangsu University of Science and Technology
nonstationary signals, instantaneous frequency, improved spline-kernelled Chirplet transform, multi-synchrosqueezing, time-frequency analysis
instantaneous frequency (IF), pied kingfisher optimizer (PKO), radial basis function moving least squares (RBFMLS), chirplet transform (CT), pied kingfisher optimizer radial basis function moving least squares chirplet transform (PKORBFMLSCT)
superabsorbent polymer, waterborne epoxy coating, self-curing concrete, shrinkage-related performance, shrinkage-mitigating mechanism, synergistic effects