An idealised, staggered array of 9 6m 3 cubes was built to gain an understanding of the influence of other buildings on the natural ventilation rate of a building. The instrumented cube contained 24 temperature measurements, 32 surface pressure taps, CO2 sensors and 2 sonic anemometers, with 5 more placed outside to measure wind velocities. Ventilation rate was measured when the cube was sealed...

The fluid oscillator is a device that produces periodic alternating jets by supplying certain pressure of the fluid. In this paper, applied to field building ventilation. supply air direction will change periodically and create vortex shedding effect in ventilated environment. By establishing three-dimensional model double feedback oscillator, CFD numerical simulation technology was used study ...

Anesthesiology, V 123 • No 4 747 October 2015 T he number of procedures requiring high-frequency jet ventilation (hFJV) continually increases, and the advantages of hFJV are well recognized.1,2 The majority of procedures using hFJV are performed in patients with variable degrees of tracheal stenosis. however, a comprehensive study illustrating the efficacy and safety of hFJV for ventilation of ...

Managing a patient scheduled for bronchoesophageal fistula repair is challenging for the anesthetist. If appropriate ventilation strategy is not employed, serious complications such as hypoxemia, gastric distension, and pulmonary aspiration can occur. We present the case of a 62-year-old man with a bronchoesophageal fistula in the left main stem bronchus requiring the insertion of a Y-shaped tr...

Airway management in patients with pemphigoid lesions has anaesthetic implications. We report a case of a 23 years old female with bullous pemphigoid who presented with laryngeal stenosis and critical airway narrowing. The airway was initially managed with jet ventilation. Anaesthesia was maintained with propofol infusion and ventilation was performed by introducing a size 10 French gauge sucti...