Avalanche-like bursts in global gyrokinetic simulations

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The effect of triangularity on tokamak boundary plasma turbulence is investigated using global, flux-driven, three-dimensional, two-fluid simulations. The simulations show that negative triangularity (NT) stabilizes boundary plasma turbulence, and linear i ...

BackgroundImpaired cerebrospinal fluid (CSF) dynamics is involved in the pathophysiology of neurodegenerative diseases of the central nervous system and the optic nerve (ON), including Alzheimer's and Parkinson's disease, as well as frontotemporal dementia ...

Entanglement and correlation are at the basis of quantummechanicsand have been used in optics to create a framework for "ghostimaging". We propose that a similar scheme can be used in anelectron microscope to exploit the correlation of electrons with theco ...

The aim of this work is to study homogeneous stable solutions to the thin (or fractional) one -phase free boundary problem. The problem of classifying stable (or minimal) homogeneous solutions in dimensions n >= 3 is completely open. In this context, axial ...

The first results of three-dimensional, flux-driven, electrostatic, global, two-fluid turbulence simulations of a diverted tokamak configuration with applied resonant magnetic perturbations generated by a set of saddle coils are presented. The simulations ...

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Recently, substantial progress has been made in the understanding of microresonators frequency combs based on dissipative Kerr solitons (DKSs). However, most of the studies have focused on the single-resonator level. Coupled resonator systems can open new ...

This thesis is a study of the global well-posedness of the Cauchy problems for half-wave maps from the Minkowski space of dimension n+1 to the 2-dimensional sphere and the hyperbolic plane. The work is mainly based on the results from Krieger-Sire 17' in ...

We theoretically and experimentally investigate the formation of dissipative coherent structures in Kerr nonlinear optical microresonators, whose spectrum encompasses an integrated dispersion that exceeds the cavity free-spectral range. We are able to acce ...

A unified numerical framework is presented for the modelling of multiphasic viscoelastic and elastic flows. The rheologies considered range from incompressible Newtonian or Oldroyd-B viscoelastic fluids to Neo-Hookean elastic solids. The model is formulate ...

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Tokamaks allow to confine fusion plasma with magnetic fields. The prediction/reconstruction of the last closed-flux surface (LCFS) is one of the primary challenges in the control of the magnetic configuration. The evolution in time of the LCFS is determine ...

We investigate the mechanics of bistable, hard-magnetic, elastic beams, combining experiments, finite-element modelling (FEM) and a reduced-order theory. The beam is made of a hard magneto-rheological elastomer, comprising two segments with antiparallel ma ...

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Avalanche-like bursts in global gyrokinetic simulations

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Effect of triangularity on plasma turbulence and the SOL-width scaling in L-mode diverted tokamak configurations

Large-scale in-silico analysis of CSF dynamics within the subarachnoid space of the optic nerve

One-Dimensional "Ghost Imaging" in Electron Microscopy of Inelastically Scattered Electrons

Stable cones in the thin one-phase problem

Plasma turbulence simulations in a diverted tokamak with applied resonant magnetic perturbations

Anomaly-free scale symmetry and gravity

Weak gravitational lensing measurements of Abell 2744 using JWST and shear measurement algorithm pyRRG-JWST

Local gyrokinetic simulations of tokamaks with non-uniform magnetic shear

Nonlinear dynamics and Kerr frequency comb formation in lattices of coupled microresonators

Well-posedness Issues For the Half-Wave Maps Equation With Hyperbolic And Spherical Targets

Dissipative Solitons and Switching Waves in Dispersion-Modulated Kerr Cavities

Numerical simulation of immiscible incompressible viscous, viscoelastic and elastic multiphase flows

Revisiting the role of friction coefficients in granular collapses: confrontation of 3-D non-smooth simulations with experiments

Exploration of the parameter space for the excitation and saturation of Edge Harmonic Oscillations

Rock-Flow Cell Parameters Evaluation Using Ultrasound Doppler Velocimetry

A machine-learning-based tool for last closed-flux surface reconstruction on tokamaks

Snap buckling of bistable beams under combined mechanical and magnetic loading

Numerical study of fully baffled Super-X L-mode discharges on TCV

On the relationship between the multi-region relaxed variational principle and resistive inner-layer theory

Laterally unconfined neutral or negative buoyancy inflow into a quiescent ambient over sloping bottom