Reducing the noise and improving sound quality of vehicles’ interior space is one challenges to enhance passengers’ experience. This an ever-growing issue as entirely electric cars are becoming commonplace, making previously unnoticed a significant problem. Heating, Ventilation Air Conditioning (HVAC) units major source in vehicle’s space, yet automotive manufacturers only give maximum dB speci...

conclusions treatment of neonatal respiratory failure with high rate mechanical ventilation may reduce some complications. results intraventricular hemorrhage (ivh) and air leak (e.g. pneumothorax) were less in hfppv group than conventional group (p = 0.012 and p = 0.038). the mean time needed for mechanical ventilation was lower in hfppv group, but this difference was not statistically signifi...

results in terms of radon and thoron emissions, travertine and plaster were found to be the most appropriate and inappropriate covering for walls, respectively. furthermore, granite and travertine were discovered to be inappropriate materials for flooring, while plastic floor covering was found suitable. natural ventilation performed better for radon, while artificial ventilation worked better ...

INTRODUCTION In the past two decades, healthcare adopted industrial strategies for process measurement and control. In the industry model, care is taken to avoid minimal deviations from a standard. In healthcare there is scarce data to support that a similar strategy can lead to better outcomes. Briefly, when compliance is high, further attempts to improve uptake of a process are seldom made. O...

BACKGROUND Emergency ventilation through a small-bore transtracheal catheter can be lifesaving in a 'cannot intubate, cannot ventilate' situation. Ejectors, capable of creating suction by the Bernoulli principle, have been proposed to facilitate expiration through small-bore catheters. In this bench study, we compared a novel, purpose-built ventilation ejector (DE 5) with a previously proposed,...

administration of endotracheal surfactant is potentially the main treatment for neonates suffering from rds (respiratory distress syndrome), which is followed by mechanical ventilation. late and severe complications may develop as a consequence of using mechanical ventilation. in this study, conventional methods for treatment of rds are compared with surfactant administration, use of mechanical...

Abstract Ventilation duct systems are indispensable for air purification and room temperature management in industrial commercial buildings. The noise generated by blowers ventilating spaces should be as low possible. In addition, to power the wireless nodes monitoring ventilation conditions such pressure at any positions all ducts, electric is preferred situ without batteries wired supply. thi...