Results 81 to 90 of about 291,391 (260)

Rotation and Neoclassical Ripple Transport in ITER

open access: yes, 2017
Neoclassical transport in the presence of non-axisymmetric magnetic fields causes a toroidal torque known as neoclassical toroidal viscosity (NTV). The toroidal symmetry of ITER will be broken by the finite number of toroidal field coils and by test ...
Dorland, W.   +5 more
core   +1 more source

2D Implementation of Kinetic‐Diffusion Monte Carlo in Eiron

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT Particle‐based kinetic Monte Carlo simulations of neutral particles are one of the major computational bottlenecks in tokamak scrape‐off layer simulations. This computational cost comes from the need to resolve individual collision events in high‐collisional regimes.
Oskar Lappi   +3 more
wiley   +1 more source

ITER monoblock performance under lifetime loading conditions in Magnum-PSI

open access: yesPhysica Scripta, 2020
The ITER divertor will be exposed to extremely high plasma fluences over its lifetime, and it is known that plasma exposure can lead to a variety of particle-induced surface-morphology and microstructure changes in tungsten.
T. Morgan   +7 more
semanticscholar   +1 more source

Operation of the Electron Cyclotron system in the ITER new baseline [PDF]

open access: yesEPJ Web of Conferences
The ITER Research Plan (IRP) has undergone significant modifications based on the change of First Wall (FW) material from beryllium (Be) to tungsten (W). Such a change, together with the constraint of achieving Q=10 for 300s with a neutron fluence of ~1%
Schneider Mireille   +8 more
doaj   +1 more source

Influence of massive material injection on avalanche runaway generation during tokamak disruptions

open access: yes, 2019
In high-current tokamak devices such as ITER, a runaway avalanche can cause a large amplification of a seed electron population. We show that disruption mitigation by impurity injection may significantly increase the runaway avalanche growth rate in such
Embréus, O   +3 more
core   +1 more source

Orientational Effects in the Low Pair Continuum of Aluminium

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT We compare the predictions of the dynamic structure factor (DSF) of ambient polycrystalline aluminium from time‐dependent density functional theory (TDDFT) in the pair continuum regime to recent ultrahigh resolution x‐ray Thomson scattering measurements, collected at the European XFEL.
Thomas Gawne   +8 more
wiley   +1 more source

The EU's Strategy for Sustainability: A Landmark Turn With the European Green Deal?

open access: yesEuropean Policy Analysis, EarlyView.
ABSTRACT While the European Green Deal (EGD) has been widely recognized as a milestone in the EU's sustainability strategy, scholars disagree on the nature of the policy change it represents. Critics highlight its limited social and environmental ambitions, despite its portrayal as a “man on the moon” moment.
Ekaterina Domorenok, Franco Gatti
wiley   +1 more source

Iterated Exaptation [PDF]

open access: yes, 2018
This volume focuses on detailed studies of various aspects of Construction Morphology, and combines theoretical analysis and descriptive detail.
openaire   +2 more sources

New Drain Spacing Formulas Using the Variational Iteration Method

open access: yesIrrigation and Drainage, EarlyView.
ABSTRACT In this study, the drain spacing is computed using the variational iteration method (VIM) to the linearized Boussinesq equation. By applying at most two iterations of the VIM method under three different initial condition scenarios, three equations for drain spacing calculation were derived. These equations predict values of drain spacing that
George Kargas   +2 more
wiley   +1 more source

Reassessment of steady-state operation in ITER with NBI and EC heating and current drive

open access: yesNuclear Fusion, 2020
One of the three goals of the ITER project is to demonstrate fusion gain Q ≥ 5 in steady-state operation (SSO). A reassessment of the necessary conditions for Q ≥ 5 SSO in ITER has been carried out for steady-state scenarios assuming no internal ...
A. Polevoi   +7 more
semanticscholar   +1 more source

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