Abstract: The invention relates to a method of assembly of a turbomachine, in particular of a gas turbine engine, comprising at least a first module and a second module a second shaft assembled by a bearing, said bearing comprising an outer ring shrink-fitted inside a journal integral with the first module and an inner ring integral with the second shaft, according to which the second module is assembled on the first module by engagement of the second shaft, with said inner ring, inside the journal comprising said outer ring, wherein it comprises the following steps: mating the second module with the second shaft up to a determined distance from the journal, centering the second shaft with respect to the journal, said centering being controlled on the basis of measuring distance deviations with respect to a reference on the journal, expansion of the journal by heating its outer surface, completion of the mating of the second shaft.

Abstract: The invention relates to a method for acquiring seismic data at a plurality of positions spread out over a zone on the seabed. The method according to the invention comprises the following steps: transmitting acoustic waves in the water layer above said zone by means of a plurality of sources, for each of said acquisition positions, dropping from the surface a seismic acquisition equipment, said equipment comprising a seismic acquisition unit and autonomous guiding equipment adapted to receive whilst descending acoustic signals from said sources and to control its trajectory according to the received acoustic signals so as to direct said equipment towards said position, performing the seismic acquisition, causing the acquisition equipments to move up to the surface, retrieving the acquisition equipments on the surface.

Abstract: An underwater acoustic beacon includes a subsystem for determining geographical position, and a transmitter for transmitting coordinates of the position at the point of impact when the beacon is deployed.

Abstract: The present invention relates to the supply and production of an animal medicine consisting of a substrate in pellet or tablet form, which is attractive to livestock and domestic animals, in which fine-grained particles of a neutral-tasting, physiologically compatible, solid carrier material are embedded, which is characterised in that said fine-grained particles of carrier material have an average diameter of 0.09 to 0.8 mm and are coated with an active substance from veterinary medicine, and said active substance layer is covered with a protective layer of a physiologically compatible polymer matrix, and to the production of this animal medicine. It also relates to the usage of said double-coated, fine-grained particles of carrier material in the production of a preparation for veterinary medicine.

Abstract: The invention concerns a temporal and spectral submarine locating method, characterised in that it includes equipping the systems or mobile objects to be located and/or identified, with acoustic transmitters transmitting aperiodic signals with a predetermined pseudo-random sequence; deploying, over the working zone where the systems and moving objects to be located are found, one or several measuring points provided, each with an acoustic receiver, with a time scale reference and a measuring point locater; transmitting to a processing centre data derived from the measuring points where, at every time of detection on a given frequency band, precise dating is associated in a time scale referential with a position of the measuring point in a spatial referential; the whole set of data derived from the different measuring points being assembled at the processing centre to be operated on by level 2 correlation with the pseudo-random reference sequences corresponding to each of the searched transmitters.

Abstract: The invention concerns a temporal and spectral submarine locating method, characterised in that it consists in: equipping the systems or mobile objects to be located and/or identified, with acoustic transmitters transmitting aperiodic signals with a predetermined pseudo-random sequence: deploying, over the working zone where the systems and moving objects to be located are found, one or several measuring points provided, each with an acoustic receiver, with a time scale reference and means for locating said measuring point; transmitting to a processing centre data derived from the measuring points where, at every time of detection on a given frequency band, precise dating is associated in a time scale referential with a position of said measuring point in a spatial referential; the whole set of data derived from the different measuring points being assembled at said processing centre to be operated on by level 2 correlation with the pseudo-random reference sequences corresponding to each of the searched trans