An Acoustic Window is comprised of a horizontal sliding window at the inner layer, and side-hung window, which can be pushed to open, on one side outer fixed glazing other side. The serves as “baffle” for screening off noise passing through opened when it slid behind window. This baffle-type acoustic proved reduce up 8 dB(A) road traffic gaining popularity in residential developments Hong Kong,...

Windage power loss (WPL) is significant and cannot be neglected in a study on transmission efficiency reducing the energy consumption of high-speed gear. The influence mechanism baffle reduction WPL needs to further studied. Based computational fluid dynamics (CFD) technology, this paper puts stress analyzing axial radial baffles viscous pressure effects with groove structures WPL. numerical ca...

As an efficient energy consumption hydraulic structure applied in deep-buried tunnel drainage system, the rate and inflow capacity of baffle-drop shafts were been influenced seriously by shaft structural parameters. Based on a scale model test Realizable k–ε model, flow regimes, maximum discharge, outflow velocity, drop with different baffle angles spacings experimentally numerically investigat...

A baffle puncture is a challenging procedure but can be safely done using direct visualization of the region of interest. To our knowledge, however, it has never been performed in a patient with dextrocardia. We present a 62-year-old male with dextrocardia, right isomerism, congenitally corrected transposition of the great arteries, persistent left-sided superior and inferior caval veins, atria...

This patient was seen for the first time at Children's Hospital of Pittsburgh at 34 days of age with cyanosis and grunting respirations of two weeks duration. Cardiac catheterization and angiography confirmed the diagnosis of transposition of the great arteries (TGA) with an intact ventricular septum. Following balloon atrial septostomy, systemic arterial saturation rose to 80% from 34%. Repeat...

OBJECTIVES Atrial switch procedures for transposition of the great arteries are associated with reoperations mainly for systemic ventricular dysfunction and baffle complications. This study aims at identifying the results of reoperations following the Senning operation. METHODS Records of 314 hospital survivors who had undergone the Senning operation were reviewed for details concerning cardi...

Fourteen patients have been studied hemodynamically 4-10 years (mean 5.5 years) after the Mustard operation for transposition of the great arteries. Investigation was directed principally at 1) the detection of baffle obstruction by catheterization of the pulmonary veins (PV) and venae cavae and recording of simultaneous right ventricular (RV) and pulmonary capillary wedge pressures (PCW); 2) t...