منابع مشابه
Streamlining trigger delay estimation for T1 mapping
Background T1 mapping in end diastole requires correct identification of the diastolic pause, and an appropriate input of the trigger delay time (TD) into acquisition parameters to ensure parametric mapping during the true diastolic pause for minimal motion-related blurring of myocardium. This diascan can be derived for individual patients from either the 4 chamber or the short axis stack. Howe...
متن کاملprediction of ignition delay period in d.i diesel engines
a semi-empirical mathematical model for predicting physical part of ignition delay period in the combustion of direct - injection diesel engines with swirl is developed . this model based on a single droplet evaporation model . the governing equations , namely , equations of droplet motion , heat and mass transfer were solved simultaneously using a rung-kutta step by step unmerical method . the...
Portable ventilators
Mechanical ventilators used in intensive care units are sophisticated devices. The guiding principle in their design is the provision of optimal lung ventilation. They incorporate precise but sizeable pneumatic components intended to utilize piped gases and mains electricity. However, when transporting patients receiving ventilatory support, these devices are rarely suitable because of their si...
متن کاملCement Windows and Ventilators
(Hi) Materials.?The aggregate may be made with 1 part of cement and 3 to 4 of sand, or 1 of cement with 1 of sand and 3 of coal ashes. Iron wire l/8th to 1/16th inch in diameter should be used in every limb, bar or curve of the window. Kerosene oil is good enough for lubricating the mould. Moulds should be emptied, i.e., windows cast, on a layer of sand, spread out and levelled, to prevent stic...
متن کاملA comparison of turbine-driven mechanical ventilators and conventional ventilators
Turbine-driven mechanical ventilators have some important advantages over conventional ventilators. The most obvious of these is independence of compressed air supply during patient transport, but higher NIV performance due to higher peak flow is also often mentioned. However, there is still a widespread belief that conventional ventilators using compressed air supplies outperform turbine-drive...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Pediatric Research
سال: 1994
ISSN: 0031-3998,1530-0447
DOI: 10.1203/00006450-199407000-00131