نتایج جستجو برای: equivalent suction
تعداد نتایج: 147559 فیلتر نتایج به سال:
Thi~ paper is baaed on the working principle of scroll compressor and after investigating the ga~ flow condition, in especial analysis the gas leaking situation between two scroll parts mutual gearing, which influence the compressor performance very much. The working process calculating model is set up, employ the soroll compressor geometric parameter, size~ error of parts manufactured as well ...
Aims and background: Although suctioning is an important nursing intervention in neonates under mechanical ventilation, it can lead to complications such as pain, respiratory distress, hypoxemia, bronchospasm and hospital infection. The purpose of this study was to determine the relationship between pain score and its effective indices in neonatal endotracheal open suction under ventilator in...
INTRODUCTION The design of a surgical rotary vacuum shaver as a predecessor to the microdebrider has been attributed to Urban in 1968. His targeted use of this device to assist in the removal of acoustic neuromas did not find general use. Powered shavers were subsequently adopted in the field of orthopedic surgery and reintroduced successfully in the 1990s into otolaryngology for use in endosco...
Suction with a partial vacuum of -70 mm. Hg applied to normal skin of rabbits causes intracutaneous hemorrhage after an average time of 8 minutes. Inflammation produced by various agents, including turpentine, killed streptococci, staphylococci, pneumococci or meningococci, and filtrates from cultures of meningococci or typhoid bacilli, produces a series of changes that are almost uniform. Imme...
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