Concept

Zone de convection

Publications associées (17)

The X-Point radiating regime at ASDEX Upgrade and TCV

Holger Reimerdes, Christian Gabriel Theiler, Umar Sheikh, Artur Perek, Marco Wischmeier, Bernhard Sieglin

Future fusion reactors require a safe, steady-state divertor operation. With deep divertor detachment, which is typically induced by impurity seeding, the radiation concentrates in a small region at the X-point or on closed flux surfaces above the X-point. ...

ELSEVIER2023

The Alfvenic nature of chromospheric swirls

Aleksi Antoine Bossart, Andrea Francesco Battaglia

Context. Observations show that small-scale vortical plasma motions are ubiquitous in the quiet solar atmosphere. They have received increasing attention in recent years because they are a viable candidate mechanism for the heating of the outer solar atmos ...

EDP SCIENCES S A2021

Absolute/convective secondary instabilities and the role of confinement in free shear layers

François Gallaire, Cristobal Manuel Arratia Martinez, Saviz Mowlavi

We study the linear spatiotemporal stability of an infinite row of equal point vortices under symmetric confinement between parallel walls. These rows of vortices serve to model the secondary instability leading to the merging of consecutive (Kelvin-Helmho ...

2018

Spatial structure of quasilocalized vibrations in nearly jammed amorphous solids

Matthieu Wyart

The low-temperature properties of amorphous solids are widely believed to be controlled by the low-frequency quasilocalized modes. However, what governs their spatial structure and density is unclear. We study these questions numerically in very large syst ...

AMER PHYSICAL SOC2018

Population gradient in the Sextans dSph: comprehensive mapping of a dwarf galaxy by Suprime-Cam

Pascale Jablonka

We present the deep and wide V and I-c photometry of the Sextans dwarf spheroidal galaxy (dSph) taken by the Suprime-Cam imager on the Subaru Telescope, which extends out to the tidal radius. The colour-magnitude diagram (CMD) reaches two magnitudes below ...

Oxford Univ Press2017

Top-of-atmosphere radiative forcing affected by brown carbon in the upper troposphere

Yi Zhang, Athanasios Nenes, Junqiu Liu, Yi Wang

Carbonaceous aerosols affect the global radiative balance by absorbing and scattering radiation, which leads to warming or cooling of the atmosphere, respectively. Black carbon is the main light-absorbing component. A portion of the organic aerosol known a ...

Nature Publishing Group2017

MgB2 Hollow Wires and Cables Embedded in a Mg Alloy Matrix

Pierluigi Bruzzone, Davide Uglietti

The brittleness of the MgB2 wires prevents performing a cable architecture with very small bending radius, similar to NbTi Rutherford cables. Consequently, it is important to reduce the thickness of the superconducting materials in order to increase its be ...

Ieee-Inst Electrical Electronics Engineers Inc2013

Electric field within lightning protection volume in presence of a descending leader

Electric field distributions within lightning protection volume of a single lightning rod are studied for the case of a vertical downward leader. The boundaries of volumes with the electrical strength exceeding its critical value for ionization in air are ...

Elsevier2012

On the gas-ice depth difference (Δdepth) along the EPICA Dome C ice core

Jérôme Chappellaz

We compare a variety of methods for estimating the gas/ice depth offset (Δdepth) at EPICA Dome C (EDC, East Antarctica). (1) Purely based on modelling efforts, Δdepth can be estimated combining a firn densification with an ice flow model. (2) The diffusive ...

Copernicus GmbH2012

Chinese Clan Associations in Penang. How Margins become a part in the process of World Culture Heritage

Florence Graezer Bideau

This article begins with the celebration of George Town’s enrolment (along with Melaka, both in the Strait of Malacca) on the UNESCO World Heritage List. It then sketches the process by which the Chinese clan jetties, built on stilts over the sea and, unti ...

2009

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