Abstract: Flyback electric charge regenerative brake system A flyback electric charge regenerative brake system, including a transmission shaft connected to and can be drive by the recycled kinetic energy, several pieces of rotating discs and fixed plates are stacked staggered and strung by the transmission shaft perpendicularly; on the plane of all rotating discs, staggered arrangement several pieces of the conductive films that can be charged with positive and negative charges.

Abstract: A microfluidic flow rate regulator can precisely control the fluid flow rate. When direct the fluid passing through the length-adjustable annular channel with a very thin gap inside the apparatus, the resistance generated by the fluid viscosity will slowdown the fluid flow rate; by adjusting the length of the length-adjustable annular channel, also changes the sum of the resistance that generated by the fluid viscosity and changed the fluid flow rate.