An ink-jet recording ink comprising water, a colorant and a surfactant, wherein a content of the surfactant is 0. The semiconductor device is characterized in that the order of m divided video signals changes before they are inputted to buffer circuits, and, after the m divided video signals are outputted from the buffer circuits, the order of the m divided video signals returns to the original order. A pair of link brackets connects the lower frame to the upper frame for pivotal motion of the upper frame with respect to the lower frame through a limited range of motion between a forward tilt limit position and a rearward tilt limit position. The various components of the absorbent article of the present invention do not substantially reduce the surface tension of the acquired liquid. Finally, delta operations are performed on the log of the estimated clean speech energy to determine the energy derivative features for the noisy speech.