This study investigates the characteristics of a turbulent boundary layer in curved circular pipe under an inflow Ma = 3.0. The consisted straight part and with turning angle 36° radius curvature, γ R/Rc, 0.0825. nanoparticle-based planar laser scattering technique was applied to visualize structure instantaneous flow field, large eddy simulation conducted uncover physical aspects development l...

this paper presents a numerical study of local mass transfer coefficients in a 90° bend using the rng version of k–e model to include the influence of curvature on the turbulent transport. simulations were performed for flow through a 90°, 3-d bend for reynolds numbers of 13500, 90000, and 390000, schmidt numbers of 2.53 and 700 and curvature ratios of 1.5, 2, and 2.5. the differences between t...

We review the properties of Wide-Angle-Tail (WAT) radio sources. The WAT sources are powerful, bent typically associated with dominant galaxy in a cluster or group. For purpose this review, we define morphology WATs as (1) sudden jet-tail transition, (2) overall bending tails to one side, and (3) non-parallel tails. mechanism for rapid transition is uncertain but it seems occur near from host I...

We would like to draw attention to a useful radiological sign indicating that a percutaneous central venous catheter may be in the ascending lumbar vein. In our neonatal unit there have been two confirmed cases where the ascending lumbar vein had inadvertently been cannulated. In both these cases a loop in the line had been noted in the region of the ileo-femoral vein (see figs 1 and 2). This ‘...

We would like to draw attention to a useful radiological sign indicating that a percutaneous central venous catheter may be in the ascending lumbar vein. In our neonatal unit there have been two confirmed cases where the ascending lumbar vein had inadvertently been cannulated. In both these cases a loop in the line had been noted in the region of the ileo-femoral vein (see figs 1 and 2). This ‘...

We would like to draw attention to a useful radiological sign indicating that a percutaneous central venous catheter may be in the ascending lumbar vein. In our neonatal unit there have been two confirmed cases where the ascending lumbar vein had inadvertently been cannulated. In both these cases a loop in the line had been noted in the region of the ileo-femoral vein (see figs 1 and 2). This ‘...

BACKGROUND AND OBJECTIVES The process of altering the shape of cartilage using heat has been referred to as thermoforming, and presents certain clinical benefits in reconstructive surgical procedures within the head and neck. Thermoforming allows cartilage in the upper airway and face to be reshaped without the use of classic surgical maneuvers such as carving, morselizing, or suturing. The goa...

We have reduced the minimum bending radius of a silica waveguide from 2 mm to 200 μm by burying low-refractive index material along both sides of the core. The local lateral relative refractive index difference (Δ) was increased to 9.05%. Moreover, we fabricated both an 8-channel, 100-GHz channel-spacing arrayed-waveguide grating (AWG) and an 8-channel, 12.5-GHz channel-spacing AWG using variat...