نتایج جستجو برای: driven cross ventilation
تعداد نتایج: 753999 فیلتر نتایج به سال:
A push-pull ventilation system is effective for hazardous material exhaustion. Although a push-pull ventilation system has advantages over a local exhaust hood, some laborious adjustments are required. The pertinence of the adjustments is uncertain because it is difficult to evaluate the performance of a push-pull ventilation system quantitatively. In this study, a measurement of the capture ef...
Introduction: During the COVID-19 pandemic, consideration was given to co-ventilating multiple patients on a single ventilator. Prior work had shown that this procedure possible by ventilating four adult-size sheep for twenty-four hours, and other groups performed maneuver during dire circumstances. However, no investigation examined safety regarding cross-contamination. The purpose of our stud...
Unlike many other engineering products, where a prototype model is built, tested and modified, buildings can only be examined after they are built. It is then too late to correct any design mistake. Therefore, architects depend on scaled models to simulate as close as possible the final product and test the design. The currently available approach for students as well as professionals to simula...
Buoyancy-driven displacement natural ventilation in a simple multi-storey building structure is investigated. The storeys are connected to a common atrium and top-down-chimneys, and the internal heat gains of the storeys are represented by localised point heat sources on each floor. The heat sources generate thermal plumes which entrain the surrounding air and transport warm air upwards. Simple...
RATIONALE AND OBJECTIVES Duration of weaning from mechanical ventilation may be reduced by the use of a systematic approach. We assessed whether a closed-loop knowledge-based algorithm introduced in a ventilator to act as a computer-driven weaning protocol can improve patient outcomes as compared with usual care. METHODS AND MEASUREMENTS We conducted a multicenter randomized controlled study ...
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