نتایج جستجو برای: direct pressure pump
تعداد نتایج: 870372 فیلتر نتایج به سال:
Multi-storey building must be equipped with a reliable fire extinguishing system. The existing system design is not backup pump and jockey pump. Based on DKI Jakarta Governor Regulation No. 92/2014 the Indonesian National Standard, to solve this problem, designed combination of pump, main that connected in an integrated parallel arrangement. This allows automatically run due pressure drop pipe ...
abstract background: the pressure of consumption spots in eater supply systems is one of the most important hydraulic parameters can be used in optimized management of water distribution networks. since the pressure has some different effects on various parameters of the network management including its hydraulic functions, reliability, stability and leakage, its control is of great importance ...
Several laboratories have reported evidence suggesting that in hypertension there are abnormalities in the activity of the sarcolemmal sodium pump in vascular smooth muscle. In the present study, by sampling tissue from both hypertensive and normotensive portions of the arterial tree in coarctation hypertension, we investigated the relationship of such abnormalities to the elevated intravascula...
BACKGROUND Liver dysfunction during on-pump coronary artery bypass graft surgery (CABG) is a rare complication but is associated with significant morbidity and mortality. The ability to identify high-risk patients may be helpful in planning appropriate management strategies. We aimed to evaluate the factors influencing liver function tests during on-pump CABG. METHODS In 146 patients schedule...
Aim of this project is the development of a new heat pump system with economizing that is able to improve the heating performance using two or more heat sources at different temperature levels. These heat sources are incorporated into the system with minimal loss of exergy by adding the heat at different pressure levels. Practical applications for such systems are for example buildings with a h...
THE purpose of this report is to characterize adverse event reports on continuous direct local anesthetic infusion into surgical wounds using infusion pump systems devised for this purpose. These pump systems typically consist of disposable, nonelectrical pumps or electromechanical pumps that deliver a continuous infusion at controlled rates for a specified duration of time. Postoperative pain ...
OBJECTIVE To evaluate the changes in cerebral blood flow during awake off-pump coronary artery bypass grafting and compare with the changes during off-pump coronary artery bypass grafting under general anesthesia, using continuous monitoring of regional cerebral oxygen saturation. METHODS The study population comprised 3 groups of patients who had undergone off-pump coronary artery bypass gra...
OBJECTIVE To analyze the correlations of the blood flow/pump rotation ratio and the transmembrane pressure, CO2 and O2 transfer during the extracorporeal respiratory support. METHODS Five animals were instrumented and submitted to extracorporeal membrane oxygenation in a five-step protocol, including abdominal sepsis and lung injury. RESULTS This study showed that blood flow/pump rotations ...
The efficiency of conversion of electrical power into fluidic power in an electrohydrody-namic (EHD) pump depends on the bulk fluid velocity. An analytical formulation is developed for calculation of the efficiency of an EHD pump, with and without the presence of a superimposed flow due to an externally imposed pressure gradient. This formulation is implemented into a numerical model, which is ...
Cardiovascular and postural control systems have been studied independently despite the increasing evidence showing the importance of cardiopostural interaction in blood pressure regulation. In this study, we aimed to assess the role of the cardiopostural interaction in relation to cardiac baroreflex in blood pressure regulation under orthostatic stress before and after mild exercise. Physiolog...
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