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Carbon emission assessment of tunnel infrastructures: From construction to operation
Deep Underground Science and Engineering, EarlyView.This study develops a lifecycle carbon accounting framework for tunnel infrastructures, covering design, construction, operation, maintenance, and dismantling. Applied to a subsea tunnel case, the framework reveals the carbon emission distribution among four typical tunnel types and highlights potential carbon offset methods for low‐carbon tunnel ...
Luyuan Long +4 more
wiley +1 more source
Deep Underground Science and Engineering, EarlyView.This study reveals the failure evolution characteristics of deep cross‐fault roadway surrounding rock under excavation support and periodic weighting. Periodic weighting readily induces fault activation, with the spatial distribution of failed rock masses being controlled by the fault strike and dip.
Tiezhu Li +4 more
wiley +1 more source
Pressure support mechanical ventilation.
The Western journal of medicine, 1992 openaire +1 more source
Respiratory muscle pressure analysis in pressure-support ventilation [PDF]
Journal of Applied Physiology, 1994 The extent to which respiratory muscles are exerted during partially supported ventilation is difficult to differentiate, because these muscles and the ventilator work simultaneously to produce ventilation. We have developed a new method for determining the pressure developed by the respiratory muscles in partially supported ventilation.
Y, Yamada +3 more
openaire +3 more sources
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Anesthesia & Analgesia, 1993
Pressure support ventilation decreases the work of breathing by providing the patient with positive airway pressure during the inspiratory phase. The use of this type of ventilatory support is likely to increase over the next few years for patients, especially during the weaning period.
Joan M. Christie, Robert A. Smith
+5 more sources
Pressure support ventilation decreases the work of breathing by providing the patient with positive airway pressure during the inspiratory phase. The use of this type of ventilatory support is likely to increase over the next few years for patients, especially during the weaning period.
Joan M. Christie, Robert A. Smith
+5 more sources
Comparison of Pressure Support Ventilation and Assist-Control Ventilation in the Treatment of Respiratory Failure [PDF]
Chest, 1997 Study objective: To assess whether pressure support ventilation (PSV) could be used as an alternative ventilatory mode to assist-control (A/C) ventilation in the treatment of respiratory failure.
FRANCISCO Alvarez
exaly +2 more sources
Archives of Internal Medicine, 1996
The field of ventilatory support has changed dramatically with the introduction of improvements in technology and new ventilatory modes. The most recent ventilators are characterized by microprocessor technology, making the interaction between patient and ventilator more sophisticated than ever before.
B, Dekel, E, Segal, A, Perel
openaire +3 more sources
The field of ventilatory support has changed dramatically with the introduction of improvements in technology and new ventilatory modes. The most recent ventilators are characterized by microprocessor technology, making the interaction between patient and ventilator more sophisticated than ever before.
B, Dekel, E, Segal, A, Perel
openaire +3 more sources
A Hazard of Pressure Support Ventilation
Chest, 1988Many of the newer models of mechanical ventilators include the pressure support (PS) mode of ventilation as a standard feature. The mechanism for the termination of a pressure support breath varies considerably among the various ventilators. The potential for the sudden inadvertent application of a high, unremitting pressure support breath or ...
J W, Black, B S, Grover
openaire +2 more sources
The Effects of Ventilator Working Pressure During Pressure Support Ventilation
Chest, 1993The purpose of this study was to examine the consequences of altering ventilator working pressure on airway pressure and flow characteristics during pressure support ventilation (PSV). A ventilator (Siemens Servo 900C) and single lung simulator were used, and graphic read outs, in triplicate, were taken at a variety of combinations of PSV, working ...
I L, Cohen, Z, Bilen, S, Krishnamurthy
openaire +2 more sources