We investigate the characteristic properties of self-sustained MRI turbulence in low-ionized proto-planetary disks .
We study the transition regime between active and dead-zone , performing 3D global non-ideal MHD simulations of stratified disk covering range of magnetic Reynolds number between 2700 \lesssim R _ { m } \lesssim 6600 .
We found converged and saturated MRI turbulence for R _ { m } \gtrapprox 5000 with a strength of \alpha _ { SS } \sim 0.01 .
Below R _ { m } \lesssim 5000 the MRI starts to decay at the midplane , having Elsasser numbers below one .
We find a transition regime between 3300 \lessapprox R _ { m } \lessapprox 5000 where the MRI turbulence is still sustained but damped .
At around R _ { m } \lessapprox 3000 the MRI turbulence decays but could reestablished due to the accumulation of toroidal magnetic field or the radial transport of magnetic field from the active region .
Below R _ { m } < 3000 the MRI can not be sustained and is decaying .
Here hydro-dynamical motions , like density waves dominate .
We observe long-living anti-cyclonic vortices in the transition between dead-zone and active zone .