A quark meson coupling model with density- and temperature- dependent   quark masses
  Based on the quark mass density- and temperature- dependent model we suggest a model for nuclear matter where the meson field is introduced to be directly coupled to the quarks. The dynamic formation of the nucleon bag, the saturation properties of nuclear matter as well as equation of state for this model are studies. 
Wei Liang Qian and Ru Keng Su