Ironless rotor DC motors present characteristics highly desirable for speed and position servos. Due to the absence of iron there is no cogging, an...

The roots of positive airways mechanical ventilation can be traced to WWII with the needs for pilots to breath at higher altitudes. Ventilation the...

The creation of small, portable infusion pumps opened a new chapter in medical care. A patient can receive carefully metered and timed doses of med...