Results 11 to 20 of about 274,826 (197)

The Role of Antisiphon Devices in the Prevention of Central Ventricular Catheter Obliteration for Hydrocephalus: A 15-Years Institution’s Experience Retrospective Analysis

open access: yesChildren, 2022
Shunt over-drainage in patients harboring a ventriculoperitoneal shunt constitutes one of the most devastating, and difficult to manage, side effects associated with this operation.
Dimitrios Panagopoulos   +4 more
doaj   +1 more source

The Effect of Vacuum on Venous Drainage: an Experimental Evaluation on Pediatric Venous Cannulas and Tubing Systems

open access: yesJournal of Nepal Medical Association, 2014
Introduction: To observe how vacuum assisted venous drainage (VAVD) may influence the flow in a cardiopulmonary bypass circuit with different size of venous lines and cannulas.
Vladimiro L Vida   +4 more
doaj   +3 more sources

Transvenous embolization of dural carotid cavernous fistula through the facial and ophthalmic vein [PDF]

open access: yesVojnosanitetski Pregled, 2011
Introduction. Dural carotid cavernous fistula is acquired, relatively rare, condition comprising of numerous smallcaliber meningeal arterial branches, draining directly into cavernous sinus.
Prstojević Branko   +3 more
doaj   +1 more source

OPTIMIZATION OF GROUND WATER CUTOFF WITH A SIPHON INTAKE FROM THE DRAIN WELLS (AS IN THE CASE OF KAMYANKA-DNIPROVSKA GROUND WATER CUT-OFF)

open access: yesМеліорація і водне господарство, 2019
Relevance of research.To increase the efficiency and reliability of the territory protection against flooding with the infiltration water of the Kakhovsky Reservoir, it is proposed to replace the low-performance ground water cutoff with an airlift water ...
V. D. Levytska, P. D. Khoruzhyi
doaj   +1 more source

Development and Evaluation of a Self-Starting Permeable Pipe Drainage Method for Slope Stabilization [PDF]

open access: yesE3S Web of Conferences
The traditional approaches to landslide drainage never provide adequate drainage capacity over the long term. Therefore, a new drainage system free of these drawbacks must be developed.
Arjunraj R.   +4 more
doaj   +1 more source

Des vestiges d’un possible aqueduc à Lyon, à l’angle des rues Appian et des Fossés-de-Trion

open access: yesGallia, 2023
A building operation at the intersection of the Appian and Fossés-de-Trion streets, in Lyon’s fifth district (France), gave rise to an archaeological excavation in 2015. The site is located near the Point-du-Jour plain, close to the Saint-Irénée district,
Tony Silvino
doaj   +1 more source

Hydrophilic polymeric coatings for enhanced, serial-siphon based flow control on centrifugal lab-on-disc platforms [PDF]

open access: yes, 2012
In this paper, we implement rotational flow control on a polymeric microfluidic “lab-on-a-disc” device by combining serial siphoning and capillary valving for sequential release of on-board stored liquid reagents.
Zhang, Xin   +7 more
core   +2 more sources

Estimating Scour Below Inverted Siphon Structures using Stochastic and Soft Computing Approaches [PDF]

open access: yesعلوم و مهندسی آبیاری, 2019
Hydraulic structures that change the  flow pattern around themselves may cause local scouring, since changing the flow characteristics (velocities or turbulence) can lead to changes in sediment transport capacity.
Masoumeh Fatahi   +2 more
doaj   +1 more source

Category-2 shunt valve marketed as MRI-Conditional malfunction following routine 3 T magnetic resonance imaging

open access: yesInterdisciplinary Neurosurgery, 2021
Background: CSF diversion techniques have been in use for decades, with the first plastic-based ventricular shunt designs originating in the 1960 s. The first generation of valves, termed fixed differential pressure (DP) valves, have a fixed flow rate ...
Caroline Davidson   +3 more
doaj   +1 more source

Water-column mass losses during the emptying of a large-scale pipeline by pressurized air; pp. 8–16 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2015
In many industrial applications the liquid trapped inside long pipelines can cause a number of problems. Intrusion of the pressurized air on top of the water column inside the horizontal pipeline can result in a less or more mixed stratified flow.
Janek Laanearu   +3 more
doaj   +1 more source

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