A power supply system includes a first power module for outputting a first voltage and a second power module for outputting a second voltage. The heat can be transferred to fuel for the primary engine of the aircraft. The apparatuses are mutually linked to operate as a virtual information processing apparatus. The high perpendicular anisotropy material also has low spin polarization. Each tooth of the inner rotor includes a tooth bottom defined by hypocycloidal curves, an engaging portion to be brought into engagement with the outer rotor and defined by involute curves, and a tooth top defined by a predetermined curve such as a part of a circle or an oval or an epicycloidal curve.