Abstract: The invention relates to a method for authenticating a user (1) on the basis of a mobile terminal of the cellular phone type (2), in which said user (1) views through a browser a portal for accessing a service hosted on a server (4); said user (1) requests his authentication through the browser via said portal; said portal initiates a pre-session in such a way as to display, through said browser, temporary access data (5) independent from said user (1); said user (1) inputs into his telephone (2) the data viewed; said telephone (2) automatically dispatches a request (6) to said server (4), including at least one authentication certificate (7) specific to the user (1) and said viewed data (5); said request (6) is encrypted with the aid of the public key of a certificate (8) of said server (4) and, in the event of authentication of the user (1), access to the service is authorized through a secure session in the browser.

Abstract: The invention concerns a method for dynamic management of a database, wherein the data, stored in storage means, are designed to be ordered through ordering means according to at least one database structure comprising at least one field for receiving at least one data. The invention is characterized in that it consists in declaring, through information means, a field of said structure based on the characteristics of said data as said data are being introduced.

Abstract: The invention concerns a method for authenticating a user via a terminal (1) connected to a network (2) and comprising means (4) for reading a medium (3), wherein, when said support (3) is created, identifying data (5) concerning said user are recorded on the medium (3) by etching means and on storage means (6); data (7) concerning the etching of said medium (3) are collected and stored in the form of a trace via said storage means (6), said trace indexing random errors occurring during etching; and, wherein, when said medium (3) is used, said identifying data (5) are read and transmitted via secure connection means (8) to said remote storage means (6) via said network (2) for comparing and authenticating same.

Abstract: A metallurgical product, made of carbon steel and to be galvanized, which is in the form of a strip or of a sheet obtained from a continuously cast intermediate product having the following composition by weight: 0.0005%?C?0.15%; 0.08%?Mn?2%; Si?0.040%; Altotal?0.010%; Alsoluable?0.004%; 0.0050%?Ototal?0.0500%; P?0.20%; S?0.10%; each of Cu, Cr, Ni, Mo, W, Co?1%; each of Ti, Nb, V, Zr?0.5%; each of Sn, Sb, As?0.1%; B?0.1%; N?0.0400%; and the remainder being iron and impurities. Also, a process for obtaining a metallurgical intermediate product, which includes: producing in a ladle a liquid steel the composition of which is as above, and in which the dissolved oxygen content is maintained between 0.0050 and 0.0500% by the establishment of a chemical equilibrium between the metal and the ladle slag; and casting the steel on a continuous casting machine.

Abstract: A metallurgical product, made of carbon steel and to be galvanized, which is in the form of a strip or of a sheet obtained from a continuously cast intermediate product having the following composition by weight: 0.0005%≦C≦0.15%; 0.08%≦Mn≦2%; Si≦0.040%; Altotal≦0.010%; Alsoluble≦0.004%; 0.0050%≦Ototal≦0.0500%; P≦0.20%; S≦0.10%; each of Cu, Cr, Ni, Mo, W, Co≦1%; each of Ti, Nb, V, Zr≦0.5%; each of Sn, Sb, As≦0.1%; B≦0.1%; N≦0.0400%; and the remainder being iron and impurities. Also, a process for obtaining a metallurgical intermediate product, which includes: producing in a ladle a liquid steel the composition of which is as above, and in which the dissolved oxygen content is maintained between 0.0050 and 0.0500% by the establishment of a chemical equilibrium between the metal and the ladle slag; and casting said steel on a continuous casting machine.

Abstract: The invention is concerned with an electrolyte injector for an electrogalvanizing line, wherein electrolyte is injected backwards into the space between the steel strip 14 and the anodes 15. The injector, disposed on the side where the rising strip leaves the electrolyte bath 12, has a nozzle 9 provided with a plurality of injection pipes 11 allowing the electrolyte from the bath 12 to pass freely between these pipes 11.

Abstract: A method of continuously casting metal in which the metal is subjected during its solidification at a predetermined zone to the action of a magnetic field which is controlled as a function of the withdrawal speed of the metal during the continuous casting thereof to maintain in the region of the solidification of the metal a magnetic pressure between two predetermined limits to thereby agitate the metal during its solidification to improve the structure of the cast product especially in a central axial zone of the product.

Abstract: A jacketted mold for the continuous casting of molten metal is surrounded by a laterally confined space holding an electromagnetic inductor for moving the molten metal in the open-ended mold. Liquid cooling medium is supplied to the mold jacket through an inlet chamber at one end and is evacuated therefrom through an outlet chamber at the other end. The outlet chamber is in communication with the confined space so that the liquid cooling medium cools not only the mold but also the inductor.