What an actuator is, and what the difference is between linear and rotary The three main energy types—electric, pneumatic and hydraulic—plus thermal, magnetic and piezoelectric What to keep in mind ...

A single power plant uses hundreds of valves to control almost every aspect of its operation. Valves, in conjunction with a controlling actuator, are used for pollution control, feed water, cooling ...

Sea animals such as leptocephali develop tissues and organs composed of active transparent hydrogels to achieve agile motions and natural camouflage in water. Hydrogel-based actuators that can imitate ...