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Cold optically thick accretion disks with hot coronae and radial advectionhave been investigated. Within the framework of $\alpha$-viscosity models, weassume that all the mass accretion and angular momentum transport take place inthe cold disk, but that a fraction of the gravitational energy released isdissipated in the corona. Both the coronal energy dissipation and the advectionheat transport have a stabilization effect on the thermal and viscousinstabilities of the disk. If that more than $\sim 95$ percent of the totalpower is dissipated in the corona, then the locally unstable behavior of thedisk is restricted to a relatively narrow spatial region and is found to lie ina small range of mass accretion rates. The global temporal variability of thedisk can be very mild or may disappear, and which may be applicable to thelow-frequency ($\sim 0.04$~Hz) quasi-periodic oscillations observed in blackhole candidates Cyg X--1 and GRO J0422+32.Comment: Submitted to ApJ November 1994, in press PS file, 11 Pages including  2 Fig

Cold Accretion Disks with Coronae and Advection