Thermal lens oscillations, and associated hot-wire experiments, pertain to a class of instabilities produced when the free surface of a liquid is locally heated from below, generalizing to some ...extent the classical Benard-Marangoni instabilities 1-8. They provided a host of original observations, including what is seemingly the first evidence of a type-II intermittency in hydrodynamical experiments or the discovery of a new kind of propagating waves exhibiting a significant 1D-character. After two decades of study, this class of instabilities now receives a rather classical aspect 9 and deserves a review, which is presented in this paper. Beside the presentation of what is known and understood nowadays, the opportunity is taken to stress unsolved issues, therefore opening the way to future studies. This review completes and up-to-dates a previous one published one decade ago 10.
Thermal lens oscillations, and associated hot-wire experiments, pertain to a class of instabilities produced when the free surface of a liquid is locally heated from below, generalizing to some ...extent the classical Bénard-Marangoni instabilities 1–8. They provided a host of original observations, including what is seemingly the first evidence of a type-II intermittency in hydrodynamical experiments or the discovery of a new kind of propagating waves exhibiting a significant 1D-character. After two decades of study, this class of instabilities now receives a rather classical aspect 9 and deserves a review, which is presented in this paper. Beside the presentation of what is known and understood nowadays, the opportunity is taken to stress unsolved issues, therefore opening the way to future studies. This review completes and up-to-dates a previous one published one decade ago 10.
La multiplication des désertions au sein de l’armée russe au printemps 2023, dans le contexte du conflit avec l’Ukraine, ainsi que la rébellion avortée du groupe paramilitaire Wagner posent de façon ...très contemporaine la question de l’autorité militaire en guerre, à la fois du côté du refus de guerre mais aussi de la politisation et de l’individualisation des chefs. Ce sont les mêmes thématiques dont traite Marius Loris Rodionoff dans l’ouvrage issu de sa thèse soutenue en 2018 et publié aux ...
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