Results 71 to 80 of about 503,944 (360)

Intermittency of Velocity Circulation in Quantum Turbulence

Physical Review X, 2021
The velocity circulation, a measure of the rotation of a fluid within a closed path, is a fundamental observable in classical and quantum flows. It is indeed a Lagrangian invariant in inviscid classical fluids. In quantum flows, circulation is quantized,
Nicolás P. Müller, Juan Ignacio Polanco, Giorgio Krstulovic   +2 more
doaj   +1 more source

Variational Principles for Stochastic Fluid Dynamics

, 2015
This paper derives stochastic partial differential equations (SPDEs) for fluid dynamics from a stochastic variational principle (SVP). The Legendre transform of the Lagrangian formulation of these SPDEs yields their Lie-Poisson Hamiltonian form.
Holm, Darryl D.
core   +1 more source

Circulating histones as clinical biomarkers in critically ill conditions

FEBS Letters, EarlyView.
Circulating histones are emerging as promising biomarkers in critical illness due to their diagnostic, prognostic, and therapeutic potential. Detection methods such as ELISA and mass spectrometry provide reliable approaches for quantifying histone levels in plasma samples.
José Luis García‐Gimenez, Juan Carlos Ruiz‐Rodríguez, Ricard Ferrer, Raquel Durá, Antonio Artigas, Iván Bajaña, David Bolado López de Andujar, Irene Cánovas‐Cervera, Adrián Ceccato, Luis Chiscano‐Camón, Elena Climent‐Martinez, Georgia García Fernández, Gemma Goma, Verónica Monforte, Beatriz Quevedo‐Sánchez, Adolf Ruiz‐Sanmartín, Antonio Sierra‐Rivera, Nieves Carbonell Monleón   +17 more
wiley   +1 more source

A Novel Approach to Investigating Transport of Lost Circulation Materials in Rough Fracture

Energies, 2018
The drilling fluid loss or lost circulation via fractures is one of the critical engineering problems in the development of deep oil and gas resources. The conventional treatment is to introduce granular lost circulation material (LCM) into the drilling ...
Yi Feng, Gao Li, Yingfeng Meng, Boyun Guo   +3 more
doaj   +1 more source

Numerical Simulation Study of Seafloor Hydrothermal Circulation Based on HydrothermalFoam: A Case Study of the Wocan-1 Hydrothermal Field, Carlsberg Ridge, Indian Ocean

Journal of Marine Science and Engineering, 2023
Deep-sea hydrothermal circulation plays a pivotal role in the material and energy exchange in deep-sea environments, exerting significant influence on the evolution of seawater chemistry and global climate dynamics. Based on existing data and assumptions,
Haoyang Zeng, Peng Hu, Zhiguo He, Jinrong Yao, Zhiying Yang   +4 more
doaj   +1 more source

Computational fluid dynamic simulations of a cavopulmonary assist device for failing Fontan circulation [PDF]

The Journal of Thoracic and Cardiovascular Surgery, 2019
Adult patients who have undergone the Fontan procedure are highly vulnerable to gradual, progressive circulatory failure, and options to reverse this situation are few. A cavopulmonary assist device could decongest the venous and lymphatic systems, overcome elevated pulmonary vascular resistance, increase cardiac output, and support some of these ...
S. Lucy Roche, W.C. Patrick Lin, Cristina H. Amon, Matthew G. Doyle, Matthew G. Doyle, Thomas L. Forbes, Osami Honjo   +6 more
openaire   +4 more sources

Computational fluid dynamics dataset of secondary air modification in a circulating fluidized bed boiler

Data in Brief, 2023
Computer simulation has been proven to provide a good understanding of engineering phenomenon. This work presents numerical simulation results on secondary air jet penetration into a dense phase of a three-dimensional fluidized bed at a commercial scale.
Nurdin Hasananto Teguh, Lilis Yuliati, Eko Siswanto, Djarot B. Darmadi   +3 more
openaire   +3 more sources

Hamilton's principle for quasigeostrophic motion

, 1998
We show that the equation of quasigeostrophic (QG) potential vorticity conservation in geophysical fluid dynamics follows from Hamilton's principle for stationary variations of an action for geodesic motion in the f-plane case or its prolongation in the ...
Holm, Darryl D., Zeitlin, Vladimir
core   +1 more source

The Dynamics of a Rigid Body in Potential Flow with Circulation [PDF]

, 2010
We consider the motion of a two-dimensional body of arbitrary shape in a planar irrotational, incompressible fluid with a given amount of circulation around the body.
A.V. Borisov, A.V. Borisov, A.V. Borisov, B.N. Shashikanth, C. Vizman, D. Lewis, D.D. Holm, D.G. Ebin, E. Kanso, E. Kanso, E. Kanso, E. Kanso, F. Gay-Balmaz, F. Gay-Balmaz, G.K. Batchelor, H. Cendra, J. E. Marsden, J. Koiller, J. Marsden, J. Vankerschaver, J. Vankerschaver, J.E. Marsden, J.E. Marsden, J.E. Marsden, L. Milne-Thomson, N.E. Leonard, R. Abraham, R. Abraham, R. F. Streater, S. Kobayashi, S. Sternberg, V. Arnold, V. Guillemin, V.I. Arnold, V.I. Arnold, V.V. Kozlov, V.Y. Ovsienko   +36 more
core   +4 more sources

Cyclic nucleotide signaling as a drug target in retinitis pigmentosa

FEBS Letters, EarlyView.
Disruptions in cGMP and cAMP signaling can contribute to retinal dysfunction and photoreceptor loss in retinitis pigmentosa. This perspective examines the mechanisms and evaluates emerging evidence on targeting these pathways as a potential therapeutic strategy to slow or prevent retinal degeneration.
Katri Vainionpää, Ahmed B. Montaser, Henri Leinonen   +2 more
wiley   +1 more source