The effect of imposed time-periodic boundary temperature of small amplitude on electroconvection under AC electric field in dielectric couple stress liquids is investigated by making a linear stability analysis. A regular perturbation method is used to arrive at an expression for the correction Rayleigh number that throws light on the possibility of sub-critical motions. The Venezian approach is adopted for obtaining eigen value of the problem. Three cases of oscillating temperature field are examined: (a) symmetric, so that the wall temperatures are modulated in phase, (b) asymmetric, corresponding to out-of phase modulation and (c) only the lower wall is modulated. It is shown that the system is most stable when the boundary temperatures are modulated out-of-phase.

**Setki tysięcy abstraktów z prac naukowych, które ukazały się w okresie styczeń 2014 r. - 5 października 2014 r. i wiele więcej.**