Packet-based VXA drives are cheaper to build because they use less complex heads, rollers and tape guides.
Some Korean designers designed this hanging printer with a full paper carriage that hangs over your desk and only the print head and roller sit on the desk.
Begging children, one-sided people, heads on roller boards, we hadn't even crossed the border.
They aren't as expensive as you might think; however, make sure you get one that is large enough to accommodate your head in rollers.
It meant that the poor dancers had to sleep with their heads in rollers and curling devices of all sorts, which was torturous.
Deer at the feeding stations, which are baited with corn, rub their heads against rollers soaked with a tickicide, permethrin, as they eat.
Participants: Elective coronary artery surgery patients (n = 113) Intervention: Patients were randomized to be perfused with either a roller head (group R, n = 56) or a centrifugal head (group C, n = 57) pump.
It is clear that the major difference in the longitudinal creepage is caused by the variation of the roller head circumferential velocity across its profile.
CPB was performed using a neonatal circuit consisting of a roller head pump (Terumo System 1, Ann Arbor, MI, USA) and a Terumo FX05 oxygenator with a blood prime.
With slight modification, according to Ündar et al. and Wang et al. [ 33, 34], the circuit was composed of) a roller head pump (Cobe Cardiovascular Inc ., pediatric oxygenator (Sorin Lilliput 2 Ecmo), and hemofilter (Sorin Group hemoconcentrators), primed with fresh piglet's blood mixed with dextran in concentration of 2/3 to 1/3, respectively.
