Aiming at the tracking control problem of a class of uncertain nonlinear systems. a nonsingular fast terminal sliding mode control scheme combining RBF network and disturbance observer is proposed. The sliding mode controller is designed by using nonsingular fast terminal sliding mode and second power reaching law to solve the problem of singularity and slow convergence in traditional... https://parisnaturalfoodes.shop/product-category/amino-energy-watermelon/