What's a Corona in a Differential?

a Corona in a Differential...........

I agree with MR. VINOD JETLEY   

The temperature and density properties of multiple structural components of coronal mass ejections (CMEs) using differential emission measure (DEM) analysis.

The DEM analysis is based on the six-passband EUV observations of solar corona from the Atmospheric Imaging Assembly onboard the \\emph{Solar Dynamic Observatory}. The structural components include the hot channel in the core region (presumably the magnetic flux rope of the CME), the bright loop-like leading front (LF), and coronal dimming in the wake of the CME.

Agree with _____________Mr.V.J

I think you actually mean Crown.  This is the gear that outputs the drive to the wheels

Also I agree with you'r answer Mr. Alex ............ Thank you

Thanks for the opportunity Alex, you and Mr.Vinod have summarised it extremely well already!

Corona is Ionized of ionizes beside over line cables, and due to this corna space be connecting to electrical power and issued noise and blue light  

Agreed with Mr. Jetley and Mr. Alex

I agree with you Mr, Alex!!