Management of difficult tracheal intubation has been facilitated by different techniques which include the use of stylets, introducers, intubating laryngeal mask airway, as well as by the development of special laryngoscope blades and fiberoptic laryngoscopes. The most recent advances for facilitation of difficult tracheal intubation is the introduction of the video-assisted laryngoscopes. The ...

Marine flexible pipe/cables, such as umbilicals, pipes and cryogenic hoses, are widely adopted in ocean engineering. The reinforcing armor layer these pipe/cables is the main component for bearing loads, which a typical multi-layer helically wound slender structure with different winding angles devices. There has been no general theoretical methodology to describe tensile performance of pipe/ca...

To discover the nonlinear characteristics of pipe flow, we simulated the flow as a sum of many vortex rings. As a first step, we investigated the nonlinear interaction among a maximum of three vortex rings. The pipe wall was replaced by many bound vortices. A free vortex ring moves right or left according to the radius, and that of a particular radius keeps the initial position. The energy of a...