A 22.38 kW, 440-V, 4-pole wave-wound d.c. shunt motor has 840 armature conductors and 140 commutator segments. Its full-load efficiency is 88% and the shunt field current is 1.8 A. If brushes are ...

Industrial applications use direct current motors because the speed-torque relationship can be varied to almost any useful form -- for both motor and regeneration applications in either direction of ...

A plastic shunt that can temporarily rejoin the severed blood vessels of soldiers wounded on the battlefield won federal approval Friday, following an expedited review. Citing what it called a ...

DC machines can be classified as self-excited, separately excited, permanent magnet (PM), and brushless. Self-excited machines can be further classified as shunt, series, and compound. Compound ...

Using antimicrobial sutures to secure the shunt and close the wound significantly reduces the number of shunt infections arising during the first six months after surgery. Children born with ...

IN the past half century, since Rehn's early (1896) repair of a cardiac laceration, success in the restoration of wounded hearts has been a vivid chapter in surgical progress. Maguire and Griswold, 1 ...