Sentence examples for wall perforations from inspiring English sources
These devices comprise wall perforations, responsible for their sound absorbing features.
In the present work the effect of a grazing-bias flow combination on the impedance of slit shaped wall perforations is experimentally investigated by means of a multi-microphone impedance tube.
The influence of low Mach number grazing-bias flow on the linear acoustic response of slit shaped wall perforations is determined in terms of a dimensionless acoustical impedance for Strouhal numbers based on the perforation width of order unity.
Whereas type I (endoscope-related) duodenal wall perforations invariably require early surgery, the majority (approximately 70%%) of patients with peri-Vaterian (type II) DP tend to seal spontaneously and thus are amenable to endoclipping (Fig. 1) or conservative management (nasogastric drainage, nil-by-mouth and parenteral nutrition, intravenous hydration and antibiotics).
During attack, both species form distinctive, F-actin-rich structures at the contact zone to the algal prey cell, which exactly match the species-specific cell wall perforations and resemble invadopodia and podosome rosettes of mammalian cells to a certain extent.
10 In another study using human cadavers, the incidence of 'major' complications was 40% including 4/20 (20%) posterior tracheal wall perforations with the PCK-technique.
A serious limitation to the technique was the resultant gastric wall perforation after tissue resection.
Rim enhancing heterogeneous abscess collections (Fig. 14) can also develop within the abdomen, possibly secondary to localised bowel wall perforation (Fig. 15).
During ERCP, fluoroscopy (a) showed opacification of dilated intrahepatic and common bile ducts and of a sizeable extraluminal CM collection (thin arrows) from lateral duodenal wall perforation (type I according to the Stapfer classification system).
This skill was assessed using ultrasound phantoms, both for transverse and longitudinal views, and measured as the success of the guided procedure and the occurrence of posterior wall perforation.
The dynamics of impactor deceleration after wall perforation of the fluid filled containment was studied being the function of the depth of perforation under the water level in case the containment was partially filled with water and partially with gas having a distinct fluid gas interface.
