We describe a new family of weak p-th order accurate SDE time integration schemes, called the Direct Richardson p-th order accurate (DRp) schemes. The DRp schemes use the idea of Richardson extrapolation on Euler time steps, performed by way of an acceptance-rejection algorithm. Previous applications of Richardson extrapolation to the Euler scheme are applicable only when the objective is to es...

A model of one dimensional fuel cells is investigated, where the material inhomogeneities in the cathode are taken into account. We use the results of the preceding studies [5], [11] to describe the dynamics of the chemical reactions and transport of ions. A corresponding governing equation is derived for the numerical simulations. We apply an explicit-implicit time integration and Richardson e...

We introduce a Modiied Richardson-Lucy Algorithm for reducing data from the Subaru AO system. This new algorithm applies Magain's correct sampling approach to the Classical Richardson-Lucy algorithm. We have evaluated its performance for astronomical usage, appearance of the object and photometric accuracy, and compared our results to those obtained with a Classical Richardson-Lucy Algorithm.