The presence of a stable leading edge vortex (LEV) on steadily revolving wings increases the maximum lift coefficient that can be generated from the wing and its role is important to understanding natural flyers and flapping wing vehicles. In this paper, the role of LEV in lift augmentation is discussed under two hypotheses referred to as 'additional lift' and 'absence of stall'. The 'additiona...

Tracheobronchial suctioning is an essential part of routine care for mechanically ventilated patients. Closed, rather than open, suction catheters are preferred for their advantages, which include minimizing risk of hypoxemia and containment of potentially infected secretions during suctioning.1,2 A closed-suction catheter is situated between the endotracheal tube (ETT) and the Y-piece of the b...

The article analyzes scientific research on the use of suction equipment in massage practice. anatomical structure and physiological features lymphatic venous vascular systems human body are considered. It was determined what effect has these systems, basis which optimal methods for achieving a healing therapeutic from according to drainage principle substantiated. technique (drainage) classica...

There has been much advancement in perfusion technology over its 50 years of progression. One of these techniques is vacuum-assisted venous drainage (VAVD). Many perfusionists augment venous drainage using VAVD, typically from a wall vacuum source. This study explores alternates to providing VAVD if the wall vacuum fails. In two porcine laboratories, approximately 36 in. of 3/16-in. tubing was ...

Total knee arthroplasty (TKA) is associated with significant postoperative blood loss for which blood transfusion might be necessary. The role of wound drainage is controversial. The use of drainage was believed to be effective in decreasing hematoma formation (Drinkwater and Neil 1995; Holt et al. 1997; Martin et al. 2004), which has been theoretically thought to decrease postoperative pain, s...

This paper reports results from an investigation into the suction caissons failure mechanisms under vertical pull-out loads. An insight to the failure mechanisms of suction caissons paves the path for developing analytical solutions to their pull-out capacity. The numerical models of suction caissons have first been calibrated by and verified against several experimental data from other researc...

INTRODUCTION To date, suction drainage has been routinely used after hip joint replacement. Currently, the validity of this practice is questioned in the literature. Hematoma is a risk factor of periprosthetic infection. Post-operative ultrasonography enables precise assessment of hip joint hematoma. AIM The aim of the study was to evaluate the usefulness of hip joint ultrasonography with res...