flux transition
31Coronal radiative losses — In astronomy and in astrophysics, for radiative losses of the solar corona, it is meant the energy flux irradiated from the external atmosphere of the Sun (traditionally divided into chromosphere, transition region and corona), and, in particular …
32SUPRACONDUCTIVITÉ — La résistance électrique de certains conducteurs devient brutalement inférieure à toute valeur mesurable au dessous d’une certaine température T c dite température critique . On dit qu’il y a transition du conducteur de l’état normal (noté N) à… …
33Corona — This article is about the astronomical term. For other uses, see Corona (disambiguation). During a total solar eclipse, the solar corona can be seen with the naked eye. A corona is a type of plasma atmosphere of the Sun or other celestial body,… …
34Iron — Fe redirects here. For other uses, see Fe (disambiguation). This article is about the chemical element. For other uses, see Iron (disambiguation). manganese …
35High-temperature superconductivity — Unsolved problems in physics What causes superconductivity at temperatures above 50 kelvin? High temperature superconductors (abbreviated high Tc or HTS) are materials that have a superconducting transition temperature (Tc) above 30 K… …
36Nucleate boiling — is a type of boiling that takes place when the surface temperature is hotter than the saturated fluid temperature by a certain amount but where the heat flux is below the critical heat flux. For water, as shown in the graph below, nucleate… …
37International Financial Reporting Standards — Les normes internationales d information financière, plus connues au sein de la profession comptable et financière sous leur nom anglais de International Financial Reporting Standards ou IFRS sont des normes comptables, élaborées par le Bureau… …
38LASERS — Les lasers (le mot «laser» est formé des initiales des mots anglais light amplification by stimulated emission of radiations , signifiant: amplification de lumière par émission stimulée de rayonnement) sont des sources nouvelles de rayonnement,… …
39Migrant — Migration humaine Solde migratoire en 2008      Solde migratoire positif …
40Migration (humaine) — Migration humaine Solde migratoire en 2008      Solde migratoire positif …
