نتایج جستجو برای: direct pressure pump
تعداد نتایج: 870372 فیلتر نتایج به سال:
The torque mode is more suitable for the direct drive 6 degree of freedom (6-DOF) parallel mechanism than speed that both dynamic coupling and current among motors are easily solved, but its key parameters characteristics have never been studied, which important goals this paper. First hydraulic system 6-DOF simplified. Then transfer function with deduced together mode. Finally, comparative exp...
To study the effect of length second inclined section vane on vortex structure and pressure distribution inside a pump, this paper uses combination numerical simulations (CFD) experimental verification methods to analyze static internal flow field volume fraction impeller bubble at different total inlet pressures as well streamline pump instants. The results show that increases, both low-pressu...
The selection criteria for multiphase boosting options remain somewhat subjective and are frequently influenced by the vendors’ data, which may mask potential limitations of this emerging technology. Existing literature on multiphase pumping tends to focus on a certain pump type for a specific field application, but does not provide more-generalized criteria for the selection of multiphase boos...
A long-standing gap in our understanding of muscle perfusion during muscular activity has been the huge (2 ) discrepancy between the levels of blood flow achieved by “maximal” chemical vasodilation or electrically evoked contractions and those achieved during locomotory-type exercise. The classical prevailing thought has been that there must be some unidentified or “missing” vasodilator substan...
BACKGROUND The aims of this study were to validate MRI-derived right ventricular (RV) pressure-volume loops for assessment of RV myocardial contractility and then to apply this technique in patients with chronic RV pressure overload for assessment of myocardial contractility, ventricular pump function, and VA coupling. METHODS AND RESULTS Flow-directed catheters were guided under MR fluorosco...
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