The present invention provides a compound of formula :wherein the variants R1, R2, R3, R4, R5, R6, R7 are as defined herein, and wherein said compound is an inhibitor of CETP, and thus can be employed for the treatment of a disorder or disease mediated by CETP or responsive to the inhibition of CETP. The device includes a plurality of inductors arranged in an array and connected with a power supply via switches which are selectively operable to activate the respective inductors. The widened edge plane is slanted relative to the light entrance plane. For three different gate oxide thicknesses, selected second oxide growth regions are nitridated with a N2 plasma which increases the dielectric constant of a gate oxide and reduces the effective oxide thickness. The dimming circuit coupled to the second terminal of the p-th light source unit controls the second DC voltage according to a current outputted from the p-th light source unit. In the method, which includes providing a separator assembly as described above, exhausted gas in the vortex chamber is brought to hit at least one corner rounded by the refractory lining on the inside of the outer walls, and the angle between the vertically-extending outer walls of the corner exceeds ninety degrees.