Based on the daily rainfall datasets of 743 stations in China and the NCEP/NCAR monthly reanalysis data during the period of 1960-2003, the relationship between
Secondary flow plays an important role in the development of dunes.To investigate this phenomenon,we simulated models of transverse dunes with different stoss s
It is well known that oil generated from source rocks of saline-lake facies is characteristic of low Pr/Ph ratio and high contents of gammacerane. The authors f