Exact(3)
In the case of ventilation systems, PI or PID regulators are usually used.
In these techniques, a radioactive tracer molecule is either inhaled, in the case of ventilation scanning, or injected, in the case of perfusion scanning.
Furthermore, muscle relaxants were prepared in case of ventilation difficulty due to muscle rigidity.
Similar(57)
In 12 cases some kind of complication due to the PDT was registered: six cases with need of surgical hemostasis, three cases of bleeding with need of transfusion of blood products, one case of PDT displacement, one case of ventilation-related problems during procedure and, finally, one case of tracheal cartilage fracture.
Comparisons were made for both natural and force ventilation cases, and in the case of force ventilation the comparison was done for cross-ventilation and a linear ceiling jet.
The results indicate that the air exchange rate has improved from 3.2 h−1 in the case of natural ventilation to 6 h−1 in mechanical ventilation, while the air turbulence merely increases from 0 to 0.05 m/s in the body of the cave and 0.15 0.2 m/s in the aisle in natural ventilation to 0 0.1 m/s in the body of the cave and 0.2 0.3 m/s in the aisle in mechanical ventilation.
To analyse whether the availability of written standards for management of mechanically ventilated patients and/or the existence of a surveillance system for cases of ventilation-associated pneumonia (VAP) are positively associated with compliance with 6 well-established VAP prevention measures.
In case of inadequate ventilation and unsuccessful intubation, emergency non-invasive airway ventilation (supraglottic airway) must be used.
Furthermore, in the case of night ventilation, different window opening patterns, i.e. single sided and cross ventilation, were examined.
PARs could be operated both as stand-alone or backup safety devices, e.g. in case of active ventilation failure.
The distinctive feature of passive ventilation is positioning of the neutral plane anywhere below the half of the vent height whereas it is located at about half vent height in the case of natural ventilation.
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