Results 11 to 20 of about 6,805 (250)

Theory and Transport of Nearly Incompressible Magnetohydrodynamic Turbulence: High Plasma Beta Regime

open access: yesThe Astrophysical Journal, 2023
Nearly incompressible magnetohydrodynamic (NI MHD) theory for β ∼ 1 (or β ≪ 1) plasma has been developed and applied to the study of solar wind turbulence. The leading-order term in β ∼ 1 or β ≪ 1 plasma describes the majority of 2D turbulence, while the
Laxman Adhikari   +9 more
doaj   +1 more source

Spiral Spectrum of a Laguerre-Gaussian Beam Propagating in Anisotropic Turbulent Plasma

open access: yesIEEE Photonics Journal, 2021
The explicit expression of orbital angular momentum (OAM) spiral spectrum of Laguerre-Gaussian (LG) beam propagating in anisotropic plasma turbulence is derived based on Rytov theory.
Yankun Wang   +5 more
doaj   +1 more source

Plasma turbulence [PDF]

open access: yes, 1998
The origin of plasma turbulence from currents and spatial gradients in plasmas is described and shown to lead to the dominant transport mechanism in many plasma regimes. A wide variety of turbulent transport mechanism exists in plasmas. In this survey the authors summarize some of the universally observed plasma transport rates.
Horton, W., Hu, G.
openaire   +2 more sources

Transport of thermal plasma above the auroral ionosphere in the presence of electrostatic ion-cyclotron turbulence [PDF]

open access: yesAnnales Geophysicae, 1999
The electron component of intensive electric currents flowing along the geomagnetic field lines excites turbulence in the thermal magnetospheric plasma. The protons are then scattered by the excited electromagnetic waves, and as a result the plasma is
V. E. Zakharov, C.-V. Meister
doaj   +1 more source

Pathologic Blood Samples Tolerate Exposure to Vibration and High Turbulence in Simulated Drone Flights, but Plasma Samples Should be Centrifuged After Flight

open access: yesIEEE Journal of Translational Engineering in Health and Medicine, 2021
Objective. Most of the previous studies of drone transport of blood samples examined normal blood samples transported under tranquil air conditions. We studied the effects of 1- and 2-hour drone flights using random vibration and turbulence simulation ...
Karl Arne Johannessen   +5 more
doaj   +1 more source

Plasma Turbulence Calculations On Supercomputers [PDF]

open access: yesThe International Journal of Supercomputing Applications, 1990
To predict the size, expense, and performance of mag netic fusion reactors, it is critical to know the scaling of particle transport and losses across the magnetic field with machine and plasma parameters. The mechanism for transport in magnetically confined plasmas is not yet known.
Benjamin A. Carreras   +8 more
openaire   +1 more source

Turbulent dynamo in a collisionless plasma [PDF]

open access: yesProceedings of the National Academy of Sciences, 2016
Significance Although magnetic field amplification by a dynamo effect converting kinetic flow energy into magnetic energy has long been shown in conventional magnetohydrodynamic fluids, whether a similar effect is possible in more dynamically complex weakly collisional plasmas, such as those encountered in astrophysical objects on ...
Rincon, Francois   +3 more
openaire   +7 more sources

Statistical Theory of Plasmas Turbulence [PDF]

open access: yesPlasma and Fusion Research, 2009
We present a statistical theory of intermittency in plasma turbulence based on short-lived coherent structures (instantons). In general, the probability density functions (PDFs) of the flux R are shown to have an exponential scaling P(R) ∝ exp (-cRs ) in the tails.
Kim, E., Anderson, J.
openaire   +3 more sources

ALK1 controls hepatic vessel formation, angiodiversity, and angiocrine functions in hereditary hemorrhagic telangiectasia of the liver

open access: yesHepatology, EarlyView., 2022
Hepatic endothelial Alk1 signaling protects from development of vascular malformations while maintaining organ‐specific endothelial differentiation and angiocrine portmanteau of the names Wingless and Int‐1 signaling. Abstract Background and Aims In hereditary hemorrhagic telangiectasia (HHT), severe liver vascular malformations are associated with ...
Christian David Schmid   +20 more
wiley   +1 more source

Transport barrier onset and edge turbulence shortfall in fusion plasmas

open access: yesCommunications Physics, 2022
A central problem in magnetized fusion plasmas is to understand whether the plasma edge sustains a turbulent state and transitions to improved confinement.
Guilhem Dif-Pradalier   +11 more
doaj   +1 more source

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