An electronic equipment includes one or more electronic devices, a cold stage, and a cold insulation member. This compound can be used as a red light emitting material in an electro-luminescence device. The drain region creates an electric field from which the carriers injected into the floating gate electrode are subject to an external force having an element directed from the semiconductor region to the floating gate electrode. During gameplay, the gameplayer may touch the touchscreen to provide input. The initiators have an azlactone or ring-opened azlactone moiety to provide telechelic polymers. The inlet is configured to induce rotating flow about the vessel of unfiltered liquid present in the vessel; andor, the drain is configured in backwash mode to force backwash liquid through the filter media in rotating flow about the vessel; andor the drain includes drain limbs inclined to the horizontal and providing for draining of filtered liquid along the inclined limbs to outlet.