Abstract: A device for releasing volatile substances comprising a container containing the volatile substances located in a fixed position, and means for generating an air flow in order to release the volatile substances, the means for generating an air flow comprising a movable body, the movement of which generates the air flow; at least one magnet arranged on said movable body; and means for generating magnetic flux, the actuation of which causes the displacement of the movable body by means of the repulsion force between said at least one magnet in the movable body and the magnetic flux. The device enables energy consumption to be improved by using magnetically assisted periodic low-consumption actuation.

Abstract: A pitch system for a wind turbine rotor, comprising a first bearing and a second bearing, each provided with an outer race, an inner race, and at least one row of rolling elements, the first and second bearings being adapted to be arranged between a hub and a blade root portion or extender, to allow rotation of the blade with respect to the hub, wherein the first bearing is adapted to be arranged nearer to the hub than the second bearing in the axial direction, the pitch system further comprising an intermediate body arranged between the first bearing and the second bearing in the axial direction, said intermediate body comprising at least a blade-side part extending between the race of the first bearing that is associated with the blade and the race of the second bearing that is associated with the blade.

Abstract: In a first aspect, the present invention provides a method of operating a wind turbine having a rotor with a plurality of blades, a nacelle, one or more pitch systems for pitching the blades, a system for determining a speed of the rotor, and a system for determining a fore-aft speed of the nacelle. The method comprises determining the speed of the rotor, determining the fore-aft speed of the nacelle, and calculating a difference between the determined speed of the rotor and a predefined speed of reference of the rotor. After, pitch commands are obtained by performing a PID control of this calculated difference of speeds, said PID control being tuned for adapting the sensitivity of the PID control as a function of the determined fore-aft speed of the nacelle. Then, the one or more pitch systems pitch the blades in accordance with said obtained pitch commands.

Abstract: X-ray apparatus that allows performing tomosynthesis as well as lateral thoracic radiographs from the stretcher itself, for which is comprises a fixed column and a revolving base that can move vertically along the fixed column, as well as rotate. Associated to this revolving base is a folding board and a support base for an arm of the x-ray tube and collimator assembly, with the specific property that the x-ray tube arm can turn independently of the detector, and the rotation of the revolving base is performed about an axis adjoining one of the sides of the fixed column, so that when the assembly is rotated it is possible to perform lateral thoracic radiographs without having to move patients from the stretcher on which they have been brought.

Abstract: The invention relates to a fluid transport device for incorporating in a structure that is not electrically insulating, in particular being made of a composite and including an electrically resistive tube, with conductive end pieces including means for fastening to said structure, wherein the tube comprises a central section having resistance of less than 10*4? per meter of length and two end sections, at least one of which presents effective resistance lying in the range of 10 ?k to 500 ?k and terminating in an end coupling; at least one conductive end piece and an end section having a said effective resistance lying in the range of 100 ?k to 500 ?k, said effective resistance being defined as the value of the resistance of the end section between the central section and the conductive element.

Abstract: The present invention relates to ventilation tubing comprising, from the inside to the outside, a bush (1), an insulating layer (2) and a cover sheet (3). Said ventilation tubing is characterized in that the insulating layer is a quartz fiber wool of which the specific surface weight illustratively is between 65 and 140 g/m2. The bush (1) and/or the cover sheet (3) may be a plastic sheet exhibiting a weave of interlacing filaments. In particular the present invention applies to aircraft ventilation circuit tubings.

Abstract: A fluid transport tube comprising at least an inner layer, an outer protective layer, and an intermediate temperature regulator device connected to a source of voltage and suitable for heating the transported fluid towards an equilibrium or reference temperature by using a positive temperature coefficient thermistor presenting electrical resistance that is automatically controlled by temperature and that is connected to the source of voltage via at least two conductor elements delivering the current needed for heating it, wherein each conductor element is a metal wire that is supported by a textile ply wound around the inner layer of the tube, and wherein said inner layer is based: on at least one elastomer; or on at least one thermoplastic elastomer selected from the group consisting of ionomers and olefin-based thermoplastic elastomers having a cross-linked elastomer phase.

Abstract: The invention relates to a mounting clamp for a tubular part such as a cable, a hose, a coupling, or a tube, the clamp having a loop region for surrounding the tubular part, said loop region being open and terminating in fixing tabs, each provided with at least one fixing hole, wherein at least one of said fixing holes presents at least one claw enabling a fixing element of a fixing device to be tightened in preliminary manner by being moved in translation.

Abstract: Clamp for fastening cylindrical elements, particularly pipes (11), comprising a frame in two parts (1, 2), articulated one with respect to the other and a flexible protective strip (10) inserted between the frame and the pipe to be fastened. The articulation is produced by means of an angle (8) of one part (2) of the frame and by means of a slot made in the other part (1) of the frame of the clamp.