Results 21 to 30 of about 13,875 (282)

Usefulness of silent magnetic resonance angiography (MRA) for the diagnosis of atherosclerosis of the internal carotid artery siphon in comparison with time-of-flight MRA

open access: yesEuropean Journal of Medical Research, 2022
Background and purpose Flow visualization in 3D time-of-flight MRA (3D-TOF MRA) may be limited for internal carotid artery siphon owing to turbulent artifact.
Rui Li   +5 more
doaj   +1 more source

Reproduction on the Rocks: Life History of a Freshwater Macrobioeroding Bivalve. [PDF]

open access: yesEcol Evol
ABSTRACT Macrobioerosion, the excavation and removal of consolidated mineral substrates by macrofauna, is well established in marine systems, where macrobioeroders drive carbonate cycling, sediment production and habitat formation. In freshwater ecosystems, however, it has been documented in only a small number of invertebrate taxa and remains a poorly
Shipway JR, Distel DL.
europepmc   +2 more sources

Effects of a conical enlarging shaft on hydraulic performances of siphon-shaft spillways

open access: yesH2Open Journal, 2023
Siphon-shaft spillways can discharge large amounts of water down to the crest level in a narrow reservoir thanks to the siphonic pressures. However, cavitational pressures in the siphon-shaft limit the operating head of these spillways. An enlargement at
M. Cihan Aydin, Ali Emre Ulu
doaj   +1 more source

EFFECT OF FURROW LENGTH AND METHODS OF APPLYING IRRIGATION ON COTTON YIELD AND WATER USE EFFICIENCY [PDF]

open access: yesJournal of Soil Sciences and Agricultural Engineering, 2000
A field experiment was conducted in 1997 growing season, at El-Karda Water Requirements Research Station, Kafr El-Sheikh Governorate, to evaluate the furrow lengths and method of applying irrigation on cotton seed yield and water use efficiency.
M. Meleha,
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

Negative Pressures and the First Water Siphon Taller than 10.33 Meters. [PDF]

open access: yesPLoS ONE, 2016
A siphon is a device that is used to drain a container, with water rising inside a hose in the form of an inverted U and then going down towards a discharge point placed below the initial water level.
Francisco Vera   +3 more
doaj   +1 more source

Improving potato cultivation using siphons for partial root-zone drying irrigation: A case study in the Blue Nile river basin, Ethiopia

open access: yesOpen Agriculture, 2017
Partial root-zone drying (PRD) is an irrigation technique which consists of alternating the water supply from one furrow to another, and keeping the other one dry during the weekly alternation period. Studies assessing PRD in potato have reported a 30-50%
Yactayo Wendy   +8 more
doaj   +1 more source

A practical example of a siphon at work [PDF]

open access: yes, 2010
In this paper, some classroom experiments are described for correcting the common misconception that the operation of a siphon depends on atmospheric pressure.
Hughes, Stephen W.
core   +2 more sources

Transient CFD analysis of fuel siphoning under a sudden inertial load

open access: yesScientific Reports, 2022
This paper presents the results of CFD investigations of siphoning between tanks of an aircraft fuel system under high-g conditions typical of an extreme pull-up maneuver.
Kang-Sik Bae, Edwin L. Blosch
doaj   +1 more source

An MIP-Based Deadlock Prevention Policy for Siphon Control

open access: yesIEEE Access, 2019
Siphon plays essential role in the occurrence of deadlocks for the flexible manufacturing system (FMS) modeled by Petri nets. For siphon-based a deadlock a prevention a strategies, the selection of a siphon to be controlled in each iteration may affect ...
Qiaoli Zhuang   +4 more
doaj   +1 more source

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