Results 81 to 90 of about 503,944 (360)

An introduction to relativistic hydrodynamics

open access: yes, 2006
This lecture provides some introduction to perfect fluid dynamics within the framework of general relativity. The presentation is based on the Carter-Lichnerowicz approach.
Gourgoulhon, Eric
core   +1 more source

The motion of the 2D hydrodynamic Chaplygin sleigh in the presence of circulation [PDF]

open access: yes, 2013
We consider the motion of a planar rigid body in a potential flow with circulation and subject to a certain nonholonomic constraint. This model is related to the design of underwater vehicles.
A. V. Borisov   +35 more
core   +3 more sources

The epithelial barrier theory proposes a comprehensive explanation for the origins of allergic and other chronic noncommunicable diseases

open access: yesFEBS Letters, EarlyView.
Exposure to common noxious agents (1), including allergens, pollutants, and micro‐nanoplastics, can cause epithelial barrier damage (2) in our body's protective linings. This may trigger an immune response to our microbiome (3). The epithelial barrier theory explains how this process can lead to chronic noncommunicable diseases (4) affecting organs ...
Can Zeyneloglu   +17 more
wiley   +1 more source

Emergence of decadal linkage between Western Australian coast and Western–central tropical Pacific

open access: yesNature Communications
The impact of interbasin linkage on the weather/climate and ecosystems is significantly broader and profounder than that of only appearing in an individual basin. Here, we reveal that a decadal linkage of sea surface temperature (SST) has emerged between
Yuewen Ding   +12 more
doaj   +1 more source

Design optimization of a coal seam annular air reverse circulation bit

open access: yesEnergy Science & Engineering, 2023
Reverse circulation (RC) drilling technology enables the rapid acquisition of coal seam samples, which is crucial in accurately measuring gas content. In addition, the design of the drill bit plays a key role in RC sampling. In this study, the turbulence
Demin Chen   +3 more
doaj   +1 more source

Numerical Simulation of the Two-phase Flow Inside Bubble Columns in the Fully Developed Flow

open access: yesChemical Engineering Transactions, 2023
This study refers to the simulation and analysis of fluid dynamics in a bubble column in fully developed flow through two numerical approaches, the variational method, and the finite volume method.
Pamela Palhares, Reginaldo Guirardello
doaj   +1 more source

Ultra-relativistic geometrical shock dynamics and vorticity

open access: yes, 2007
Geometrical shock dynamics, also called CCW theory, yields approximate equations for shock propagation in which only the conditions at the shock appear explicitly; the post-shock flow is presumed approximately uniform and enters implicitly via a Riemann ...
ANDREW MACFADYEN   +8 more
core   +1 more source

Goodbye flat lymphoma biology

open access: yesFEBS Letters, EarlyView.
Three‐dimensional (3D) biological systems have become key tools in lymphoma research, offering reliable in vitro and ex vivo platforms to explore pathogenesis and support precision medicine. This review highlights current 3D non‐Hodgkin lymphoma models, detailing their features, advantages, and limitations, and provides a broad perspective on future ...
Carla Faria   +3 more
wiley   +1 more source

Dynamic Simulations on Enhanced Heat Recovery Using Heat Exchange PCM Fluid for Solar Collector

open access: yesEnergies, 2023
Facing the goal of carbon neutrality, energy supply chains should be more low-carbon and flexible. A solar chemical heat pump (SCHP) is a potential system for achieving this goal. Our previous studies developed a silicone-oil-based phase-change material (
Yawen Ren, Hironao Ogura
doaj   +1 more source

Coupling of lung tissue tethering force to fluid dynamics in the pulmonary circulation

open access: yesInternational Journal for Numerical Methods in Biomedical Engineering, 2010
AbstractDynamic changes in lung volume during breathing and alteration of posture are both known to influence the distribution of perfusion within the lung. Here we couple computational models of pulmonary blood flow and parenchymal tissue mechanics to produce a novel flow model that predicts tissue deformation simultaneously with flow distributions at
Burrowes, K, Tawhai, M
openaire   +3 more sources

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