Results 41 to 50 of about 503,944 (360)

Indo-Pacific warm pool present warming attribution and future projection constraint

open access: yesEnvironmental Research Letters, 2022
The Indo-Pacific warm pool (IPWP) has warmed and expanded substantially over the past decades, which has significantly affected the hydrological cycle and global climate system.
Wenrong Bai   +4 more
doaj   +1 more source

Fluid Dynamics of Polar Vortices on Earth, Mars, and Titan

open access: yesAnnual Review of Fluid Mechanics, 2022
Polar vortices that share many similarities are found in Earth's stratosphere and the atmospheres of Mars and Saturn's moon Titan. These vortices all occur in the winter, and are characterized by high potential vorticity (PV) in polar regions, steep ...
D. Waugh
semanticscholar   +1 more source

Simulating Fracture Sealing by Granular LCM Particles in Geothermal Drilling

open access: yesEnergies, 2020
Lost circulation occurs when the returned fluid is less than what is pumped into the well due to loss of fluid to pores or fractures. A lost-circulation event is a common occurrence in a geothermal well.
Lu Lee, Arash Dahi Taleghani
doaj   +1 more source

Quantifying 4D flow cardiovascular magnetic resonance vortices in patients with pulmonary hypertension: A pilot study

open access: yesPulmonary Circulation, 2023
In this 4D flow cardiovascular magnetic resonance (CMR) study, vortical blood flow in the main pulmonary artery (MPA) is quantified using circulation (ᴦ), a metric used in fluid dynamics to quantify the rotational components of flow. Circulation (ᴦ) is a
Ali Borhani   +9 more
doaj   +1 more source

Models of Shear-Induced Platelet Activation and Numerical Implementation with Computational Fluid Dynamics Approaches.

open access: yesJournal of Biomechanical Engineering, 2021
Shear-induced platelet activation is one of the critical outcomes when blood is exposed to elevated shear stress. Excessively activated platelets in the circulation can lead to thrombus formation and platelet consumption, resulting in serious adverse ...
Dong Han   +3 more
semanticscholar   +1 more source

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

Tumescent Injections in Subcutaneous Pig Tissue Disperse Fluids Volumetrically and Maintain Elevated Local Concentrations of Additives for Several Hours, Suggesting a Treatment for Drug Resistant Wounds. [PDF]

open access: yes, 2020
PurposeBolus injection of fluid into subcutaneous tissue results in accumulation of fluid at the injection site. The fluid does not form a pool. Rather, the injection pressure forces the interstitial matrix to expand to accommodate the excess fluid in ...
Dunn, James CY   +5 more
core   +2 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

Productivity analysis in tubular photobioreactors using a dynamic photosynthesis model coupled to computational fluid dynamics particle tracking.

open access: yesBioresource Technology, 2021
Tubular photobioreactors (TPBRs) are closed devices used for the mass culture of microalgae. TPBRs are supposed to be well-mixed, but the influence of their specific fluid dynamics in photosynthesis efficiency has never been studied in detail.
P. Fernandez del Olmo   +2 more
semanticscholar   +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

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