Results 11 to 20 of about 254,963 (201)

Aquaporin-4 Functionality and Virchow-Robin Space Water Dynamics: Physiological Model for Neurovascular Coupling and Glymphatic Flow. [PDF]

open access: yes, 2017
The unique properties of brain capillary endothelium, critical in maintaining the blood-brain barrier (BBB) and restricting water permeability across the BBB, have important consequences on fluid hydrodynamics inside the BBB hereto inadequately ...
Igarashi, Hironaka   +3 more
core   +1 more source

Postural influence on intracranial fluid dynamics: an overview

open access: yesJournal of Physiological Anthropology, 2023
This review focuses on the effects of different body positions on intracranial fluid dynamics, including cerebral arterial and venous flow, cerebrospinal fluid (CSF) hydrodynamics, and intracranial pressure (ICP).
Arlan Faritovich Sagirov   +5 more
doaj   +1 more source

Results for a turbulent system with unbounded viscosities: weak formulations, existence of solutions, boundedness, smoothness' [PDF]

open access: yes, 2007
We consider a circulation system arising in turbulence modelling in fluid dynamics with unbounded eddy viscosities. Various notions of weak solutions are considered and compared. We establish existence and regularity results.
Bernardi   +10 more
core   +5 more sources

Dynamics of total extracellular water of the body during the modification of ultrafiltration after artificial circulation [PDF]

open access: yesĶazaķstannyṇ Klinikalyķ Medicinasy, 2018
Aim: This article aims to investigate the dynamics of the total extracellular water of the body when performing modified ultrafiltration after artificial circulation. Methods: 50 patients were examined, from 1 to 8 years.
Nurlan Bayzhigitov   +3 more
doaj   +1 more source

Point vortex dynamics as zero-radius limit of the motion of a rigid body in an irrotational fluid [PDF]

open access: yes, 2017
The point vortex system is usually considered as an idealized model where the vorticity of an ideal incompressible two-dimensional fluid is concentrated in a finite number of moving points.
Glass, Olivier   +2 more
core   +4 more sources

Computational Fluid Dynamics for Brain Circulation and Aneurysm with Therapeutic Devices [PDF]

open access: yesInterventional Neuroradiology, 2004
We analysed fluid dynamics at brain arteries having multiple inflow and out flow like Willis ring based on clinical imaging modalities. In addition, we analysed fluid dynamics with therapeutic devices like coils and stents to simulate their influences to blood flow. 3D CTA and MRA obtained three-dimensional structures of the brain vessels.
K, Fukasaku   +4 more
openaire   +2 more sources

Flow coupling between active and passive fluids across water–oil interfaces

open access: yesScientific Reports, 2021
Active fluid droplets surrounded by oil can spontaneously develop circulatory flows. However, the dynamics of the surrounding oil and their influence on the active fluid remain poorly understood.
Yen-Chen Chen   +3 more
doaj   +1 more source

Inner-ear circulation in humans is disrupted by extracranial venous outflow strictures: Implications for Ménière’s disease

open access: yesVeins and Lymphatics, 2018
Ménière’s disease (MD) is a pathology of the inner ear, the symptoms of which include tinnitus, vertigo attacks, fluctuating hearing loss, and nausea. Neither cause nor cure are currently known, though animal experiments suggest that disruption of the ...
Eleuterio F. Toro   +5 more
doaj   +1 more source

Fluid dynamic similarity of circulating fluidized beds

open access: yesPowder Technology, 1992
Abstract The effects of scale-up on the fluid dynamics of circulating fluidized beds (CFB) are investigated using a single cold laboratory facility with the ability to recycle fluidization gas mixtures of adjustable density and viscosity. By matching five dimensionless parameters, experiments employing plastic, glass and steel powders achieve fluid ...
Hongder Chang, Michel Louge
openaire   +1 more source

Drilling fluid loss model and loss dynamic behavior in fractured formations

open access: yesPetroleum Exploration and Development, 2014
In view of the lost circulation in fractured formations, a two-dimensional transient model for describing a power-law drilling fluid loss in an arbitrarily-oriented, compressible, permeable, rough-walled fracture was introduced.
Lichun JIA   +4 more
doaj   +1 more source

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