نتایج جستجو برای: concentric annulus
تعداد نتایج: 14313 فیلتر نتایج به سال:
An experimental and numerical study has been carried out to investigate the heat transfer by natural convection in a three dimensional annulus enclosure filled with porous media (silica sand) between two inclined concentric cylinders (and without) annular fins attached inner cylinder under steady state condition; The experiments were for range of modified Rayleigh number (0.2 ≤Ra*≤ 11) extended...
Many ageing reinforced concrete structures are affected by severe damage of reinforcing bars due to corrosion. Accurate knowledge the stress-strain characteristics installed is an indispensable prerequisite for realistic assessment structural safety such structures. The reduction in cross section does not only reduce load bearing capacity bars, but case hot-rolled, quenched and self-tempered (Q...
After an ankle injury, residual symptoms can followed to recurrent sprain in physical activity and 30% of its lead to functional ankle instability (FAI) Therefore, the aim of this study was to examine the isokinetic concentric and eccentric torque measures of the ankle musculature to body weight in female athletes with and without FAI.30 female athletes, who play in pro league of Tehran, p...
An annulus SLEκ trace tends to a single point on the target circle, and the density function of the end point satisfies some differential equation. Some martingales or local martingales are found for annulus SLE4, SLE8 and SLE8/3. From the local martingale for annulus SLE4 we find a candidate of discrete lattice model that may have annulus SLE4 as its scaling limit. The local martingale for ann...
Underbalanced drilling as multiphase flow is done in oil drilling operation in low pressure reservoir or highly depleted mature reservoir. Correct determination of the pressure loss of three phase fluids in drilling annulus is essential in determination of hydraulic horsepower requirements during drilling operations. In this paper the pressure loss of solid-gas-liquid three-phase fluids flow in...
BACKGROUND Torsion shear angle φ is an important measure of left ventricular (LV) systolic and diastolic functions. Here we provide a novel index utilizing LV normalized torsion shear angle φ ^ volume V ^ loop to assess LV diastolic functional properties. We defined the area within φ ^ V ^ loop as torsion hysteresis area, and hypothesized that it may be an important global parameter of diastoli...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید