The application of Aiki in the Aikido techniques demonstrated by Noriaki Inoue is analysed below.

From the time 3.40 to the end of the video Tori presents his lower arm/wrist to Uke. As Uke comes to grab the lower arm/wrist Tori induces Uke to apply Aiki by changing the position or angle of the lower arm/wrist. This induces Uke to follow the positional/angular change in Tori's lower arm/wrist by reversing the muscular torque about the ankle joint of his front foot causing him to become unbalanced to the front by his own forward momentum. Aiki-Feint

The above method of applying Aiki, to unbalance Uke, is also used in nearly all the techniques demonstrated from the time 1.27 to 3.37.