In magnetic levitation centrifugal blood pumps, most magnetic bearings have flat rotors, so this kind of magnetic bearings is not suitable for the rotor structure of centrifugal kidney pumps with ...

Lithium-ion batteries are generally used in mobile devices, but the voltage range of the battery varies from 2.7 to 4.2V. To provide a mid-3V-range output from the battery, a converter capable of step ...

The HP OmniBook X Flip 16 is a large and somewhat pricey 2-in-1 that has a lot to like, but makes a few too many missteps to prove really favorable, especially when there are plenty of good ...