On Dines' Pressure Tube Anemometer

On Cup Anemometer Rotor Aerodynamics

The influence of anemometer rotor shape parameters, such as the cups' front area or their center rotation radius on the anemometer's performance was analyzed. This analysis was based on calibrations performed on two different anemometers (one based on magnet system output signal, and the other one based on an opto-electronic system output signal), tested with 21 different rotors. The results we...

Impact of positive pressure ventilation on thoracostomy tube removal in traumatic patients who admitted in ICU

Introduction: Few studies is in literature related to evaluation of impact of positive pressure ventilation (PPV) on thoracostomy tube removal in Iran. We decided, in this study, to evaluate the impact of PPV on recurrent pneumothorax (PTX) after removal of thoracostomy tubes (TT). Methods: A case-control study was performed for evaluating 122 chest tubes in 109 mechanically ventilatedtrauma pa...

A Constant Current Hotwire Anemometer

................................................................................................................................ i Acknowledgement ............................................................................................................... ii List of Table ........................................................................................................................ ...

Numerical Study on Effect of Bilinear Pressure Path on Corner Filling in Hydroforming of Tube in Box-Shape Die

Die corner filling is very important in tube hydroforming process. Definition of the internal pressure path is a key factor in improving the corner filling.  However, the factors that cause improvement of corner filling are still unclear. In this paper, effect of bilinear pressure path on corner filling in hydroforming of tube in box-shape die is studied using both finite element simulation and...

How to measure tracheostomy tube cuff pressure.