Simple description of metastable phase decay on wide spectrum of   activities
  A new simple method for description of the nucleation process on the wide class of heterogeneous centers is given. The nucleation occurs on the heterogeneous centers with different heights of activation barriers. The distribution of the total number of heterogeneous centers over the activation barrier heights is supposed to be a smooth continuous function. This description results in a simple analytical formulas for all main characteristics of nucleation. Only a simple algebraic equation for the paramters has to be solved to get concrete results. 
V.Kurasov (St.Petersburg University)