A class of nonlinear singularly perturbed initial boundary value problems for reaction diffusion equations with two parameters and boundary perturbation were co
Escalator is a vehicle related to people’s daily life closely while it incurs safety problems frequently.Therefore,developing a new methodology for escalator s
In the standard particle swarm optimization(SPSO),the big problem is that it suffers from premature convergence,that is,in complex optimization problems,it may