The alternating current electroosmotic flow of a non-Newtonian power-law fluid is studied in a circular microchannel. A numerical method is employed to solve the non-linear Poisson-Boltzmann and the momentum equations. The main parameters which affect the flow field are the flow behavior index, the dimensionless zeta potential and the dimensionless frequency. At very low dimensionless frequenci...

Identification and analysis of critical respiratory alarms during use of an advanced anesthesia workstation is essential in the intraoperative period. We present and discuss a scenario in which there was activation of a fresh gas flow alarm during low-flow anesthesia intraoperatively and use of oxygen flush to counteract it led to a diluted concentration of the inspired anesthetic agent.

This paper seeks to emphasize the flow variability in the Calnistea catchment by analyzing the local physiographic factors. The research has shown that the amount of precipitation that falls to the ground is low, the rocks in the region are soft, but highly permeable, gradients are gentle in most of the territory and vegetal cover is sparse and therefore cannot hold important amounts of water. ...

In recent decades, Micro Air Vehicles (MAVs) have been a hot topic for their promising future. But the promotions of MAVs are hindered by short endurances. To solve this problem, inspirations brought from migratory butterflies who utilize ‘flapping-gliding’ skill during long-distance migration to improve flight efficiency. The butterfly’s gliding flights, which can be simplified considering ste...

BACKGROUND Sevoflurane is degraded to compound A (CpA) by carbon dioxide absorbents containing strong base. CpA is nephrotoxic in rats. Patient exposure to CpA is increased with low fresh gas flow rates, use of Baralyme, and high sevoflurane concentrations. CpA formation during low-flow and closed circuit sevoflurane anesthesia had no significant renal effects in surgical patients with normal r...