Forty-nine patients with transposition of the great arteries who underwent a Mustard atrial baffle repair between 1964 and 1971 were assessed late postoperatively. There have been five late deaths: two related to baffle obstruction, two from noncardiac causes, and one sudden and unexpected. Hemodynamic data were available in 42 patients and autopsy in four. Obstruction of the lower venous chann...

An antireflection overcoat for opaque baffle coatings in the FIRlsubmillimeter region has been made from a simple Teflon spray-on lubJricant. The Teflon overcoat reduced the specular reflectance of four different c,paque coatings by nearly a factor of two. Analysis, based on the interfElrence term of a reflecting-layer model, indicates that in the submillimeter region the reduced reflectance de...

background and objectives: pomegranate juice (pj) contains large particles that stick to evaporator walls causing off flavors in the concentrate due to burning. microfiltration is used to clarify pj. fouling is a limiting phenomenon that can prevent the industrialization of membrane clarification. changes in the geometry of the membrane module such as using baffles are useful to decrease this p...

Nowadays, most oilfields have entered the high water cut stage of waterflood development. The importance oil–water separation technology becomes more obvious. Gravity is one commonly used treatment techniques for produced fluid. gravitational separator has a large processing capacity and wide application range, but its structure relatively simple efficiency gradually falls behind to meet curren...

In vertical Bridgman (VB) systems, the shape of S-L interface greatly influences yield and perfection single crystal, because continuous contact with crucible. The melt flows are difficult to modify control. Baffles flow-directing or obstructing devices. VB melts, baffles disk shaped, positioned horizontally above solid-liquid (S-L) interface. role baffle is to: i) minimize thermally-driven con...

Building acoustic beamformers is a problem whose solution is hindered by the wide-band nature of audible sound. In order to achieve a consistent directional response over a wide range of frequencies, a conventional acoustic beamformer needs a high number of discrete loudspeakers and be large enough to achieve a desired low-frequency performance. The acoustic beamformer design described in this ...

the effect of γ-al2o3 nanoparticles on heat transfer rate, baffle spacing and pressure drop in the shell side of small shell and tube heat exchangers was investigated numerically under turbulent regime. γ-al2o3-water nanofluids and pure water were used in the shell side and the tube side of heat exchangers, respectively. since the properties of γ-al2o3-water nanofluids were variable, they were ...

OBJECTIVES The total cavopulmonary connection (TCPC), the current palliation of choice for single-ventricle heart defects, is typically created with a single cylindrical tunnel or conduit routing inferior vena caval (IVC) flow to the pulmonary arteries. Previous studies have shown the haemodynamic efficiency of the TCPC to be sub-optimal due to the collision of vena caval flow, thus placing an ...

Abstract The study aims to explore the characteristics of impact load a ship under influence harsh marine environment. horizontal excitation test platform is established analyze response law external frequency sloshing load. Moreover, nonlinear liquid are analyzed porous baffling with different solids ratios and tanks depths. It found that resonance tank without 0.93 ω 0 , baffle 0.96ω0. With s...