température de transformation
41isothermal transformation curve — also known as the time temperature transformation curve. If a small piece of steel is heated sufficiently slowly for it to become austenitic and then plunged into a salt bath and held at a constant temperature below the upper critical point for a …
42Covariant transformation — See also Covariance and contravariance of vectors In physics, a covariant transformation is a rule (specified below), that describes how certain physical entities change under a change of coordinate system. In particular the term is used for… …
43Diffusionless transformation — Diffusionless transformations classifications A diffusionless transformation is a phase change that occurs without the long range diffusion of atoms but rather by some form of cooperative, homogeneous movement of many atoms that results in a… …
44time-temperature transformation curve — an isothermal transformation diagram showing the relationship between temperature and the time taken for the decomposition of austenite when the transformation occurs at constant temperature …
45Legendre transformation — f(x) . The function is shown in red, and the tangent line at point (x 0, f(x 0)) is shown in blue. The tangent line intersects the vertical axis at (0, f^star) and f^star is the value of the Legendre transform f^star(p 0) , where p 0=dot{f}(x 0) …
46Distributed temperature sensing — systems (DTS) are optoelectronic devices which measure temperatures by means of optical fibres functioning as linear sensors. Temperatures are recorded along the optical sensor cable, thus not at points, but as a continuous profile. A high… …
47Electrolyse a haute temperature — Électrolyse à haute température Schéma d électrolyse à haute température. L électrolyse à haute température (ou HTE d après l acronyme anglais de High temperature electrolysis ou électrolyse en phase vapeur) est une méthode actuellement étudiée… …
48Électrolyse à haute température — Schéma d électrolyse à haute température. L électrolyse à haute température (ou HTE d après l acronyme anglais de High temperature electrolysis ou électrolyse en phase vapeur) est une méthode actuellement étudiée pour la production d hydrogène à… …
49Calcium Chloride Transformation — CaCl2 transformation refers to a technique of increasing the ability of a cell to incorporate plasmid DNA. The addition of CaCl2 to a cell suspension promotes the binding of plasmid DNA to the cell surface, which can then pass into the cell.… …
50Rapport De Transformation — Transformateur électrique Un transformateur électrique est un convertisseur permettant de modifier les valeurs de tension et d intensité du courant délivrées par une source d énergie électrique alternative, en un système de tension et de courant… …
