Publications related to Interaction between the Lower Hybrid wave and density fluctuations in the scrape-off layer

Nonlinear interactions of ion acoustic waves explored using fast imaging decompositions

Fast camera imaging is used to study ion acoustic waves propagating azimuthally in a magnetized plasma column. The high-speed image sequences are analyzed using proper orthogonal decomposition and 2D Fourier transform, allowing to evaluate the assets and d ...

AIP Publishing2023

Weakly nonlinear evolution of stochastically driven non-normal systems

François Gallaire, Edouard Boujo, Yves-Marie François Ducimetière

We consider nonlinear dynamical systems driven by stochastic forcing. It has been largely evidenced in the literature that the linear response of non-normal systems (e.g. fluid flows) may exhibit a large variance amplification, even in a linearly stable re ...

2022

Turbulence in the scrape-off layer of double-null tokamak configurations

Carrie Fiona Beadle

Understanding the turbulent dynamics in the outermost region of the tokamak is essential to predict and control the heat and particle loads to the vessel wall, a crucial problem for the entire fusion program. In this thesis, the problem is approached via t ...

EPFL2021

A generalized theory of separable effects in competing event settings

Mats Julius Stensrud

In competing event settings, a counterfactual contrast of cause-specific cumulative incidences quantifies the total causal effect of a treatment on the event of interest. However, effects of treatment on the competing event may indirectly contribute to thi ...

2021

Measurement and Modeling of Both Distant and Close Electric Fields of an M‐Component in Rocket‐Triggered Lightning

Marcos Rubinstein, Mohammad Azadifar, Amirhossein Mostajabi, Qi Li, Mi Zhou

Simultaneous measurements of current and multiple‐station electric fields associated with a 5.4‐kA‐peak M‐component in rocket‐triggered lightning are presented in this study. A close‐range electric field measurement site was located northeast of the trigge ...

2020

Building biosecurity for synthetic biology

Marie-Valentine Renée Agnès Florin

The fast-paced field of synthetic biology is fundamentally changing the global biosecurity framework. Current biosecurity regulations and strategies are based on previous governance paradigms for pathogen-oriented security, recombinantDNAresearch, and broa ...

2020

Nonreciprocity in Bianisotropic Systems with Uniform Time Modulation

Mohammad Sajjad Mirmoosa, Xiao Wang

Physical systems with material properties modulated in time provide versatile routes for designing magnetless nonreciprocal devices. Traditionally, nonreciprocity in such systems is achieved exploiting both temporal and spatial modulations, which inevitabl ...

AMER PHYSICAL SOC2020

Stable Manifold for the Critical Non-Linear Wave Equation: A Fourier Theory Approach

Gérôme Graf

I will try to explain, without going into too much detail, how one can consider a non-linear wave equation as a dynamical system and what it brings to the study of its solutions. We begin by considering our model case, the non-linear Klein-Gordon equation ...

EPFL2019

Homogenization theory for the effective permittivity of a turbulent tokamak plasma in the scrape-off layer

Stefano Alberti, Ivo Furno, Oulfa Chellaï

There has been a growing interest, over the past few years, on understanding the effect on radio frequency waves due to turbulence in the scrape-off layer of tokamak plasmas. While the far scrape-off layer density width is of the order of centimetres in co ...

CAMBRIDGE UNIV PRESS2018

On stability of type II blow up for the critical NLW on $\mathbb{R}^{3+1}$

Joachim Krieger

We show that the finite time type II blow up solutions for the energy critical nonlinear wave equation [ \Box u = -u^5 ] on

\mathbb{R}^{3+1}

constructed in [28], [27] are stable along a co-dimension three manifold of radial data perturbations in a suit ...

2018

Interaction between the Lower Hybrid wave and density fluctuations in the scrape-off layer

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Nonlinear interactions of ion acoustic waves explored using fast imaging decompositions

Weakly nonlinear evolution of stochastically driven non-normal systems

Turbulence in the scrape-off layer of double-null tokamak configurations

A generalized theory of separable effects in competing event settings

Measurement and Modeling of Both Distant and Close Electric Fields of an M‐Component in Rocket‐Triggered Lightning

Building biosecurity for synthetic biology

Nonreciprocity in Bianisotropic Systems with Uniform Time Modulation

Stable Manifold for the Critical Non-Linear Wave Equation: A Fourier Theory Approach

Homogenization theory for the effective permittivity of a turbulent tokamak plasma in the scrape-off layer

On stability of type II blow up for the critical NLW on $\mathbb{R}^{3+1}$

Weakly nonlinear evolution of stochastically driven non-normal systems

Turbulence in the scrape-off layer of double-null tokamak configurations

Measurement and Modeling of Both Distant and Close Electric Fields of an M‐Component in Rocket‐Triggered Lightning

Nonreciprocity in Bianisotropic Systems with Uniform Time Modulation

Homogenization theory for the effective permittivity of a turbulent tokamak plasma in the scrape-off layer

Nonlinear interactions of ion acoustic waves explored using fast imaging decompositions

Stable Manifold for the Critical Non-Linear Wave Equation: A Fourier Theory Approach

On stability of type II blow up for the critical NLW on $\mathbb{R}^{3+1}$

A generalized theory of separable effects in competing event settings

Building biosecurity for synthetic biology