نتایج جستجو برای: pressure fluctuation
تعداد نتایج: 432586 فیلتر نتایج به سال:
Abstract Double-suction centrifugal pumps have been applied extensively in many areas, and the significance of pressure fluctuations inside these with large power is becoming increasingly important. In this study, a double-suction pump high-demand for vibration noise was redesigned by increasing flow uniformity at impeller discharge, implemented combinations more than two parameters. First, num...
We report dc-magnetization measurements on YbRh2Si2 at temperatures down to 0.04 K, magnetic fields B< or =11.5 T, and under hydrostatic pressure P< or =1.3 GPa. At ambient pressure a kink at B* =9.9 T indicates a new type of field-induced transition from an itinerant to a localized 4f state. This transition is different from the metamagnetic transition observed in other heavy-fermion compounds...
Controversy surrounds the acceptance of hypertension as an independent risk factor for anaesthesia. In an attempt to identify variables that are associated with increased haemodynamic instability during surgery, the blood pressure profiles of 128 patients were analysed. The two variables that contributed most to the instability were pre-operative control of blood pressure and anaesthetic techni...
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