A Brownian particle in an asymmetric periodic potential and subjected to an asymmetric dichotomous noise was investigated. In the frame of Fokker-Planck equation, exact expression of current of the system was derived. By means of numerical calculations, the results indicate that: (i) as the...

The status quo of resource allocation of agricultural science and technology R&D (research and development)both at home and abroad，including the amount and function of agricultural science and technology research funds, human resources in the resources of agricultural science and technology...