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Figures 4A-4C reflect schematically, a sequence of interaction between an actuator element and a generator piezoelectric element, according to a possible embodiment of the invention. Figures 1 -3 reflect schematically some aspects of a possible embodiment of the invention, and that said embodiment of the invention has in common with the aerogenerator described in WO-2012/017106-A1. Figures 4A-4C illustrate schematically how according to a possible embodiment of the invention, the capture element 1 is associated to an actuator element 10 which is moved with part of the capture element, for example, in an oscillating manner, with the oscillation frequency of the capture element 100, for example, with a frequency of 8 Hz. In the embodiments illustrated in figures 4A-5C, the actuator elements such as the actuator elements 10 or the first magnets 1 1 are moved by the capture element and the generator piezoelectric elements are mounted on a fixed base, but any other suitable arrangement can be used within the scope of the invention, such as generator piezoelectric elements mounted to be displaced by the movement of the capture element, and actuator elements mounted on a fixed base.

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  3. Estimula la microcirculación de sangre oxigenada
  4. Hipertiroidismo (una tiroides hiperactiva)

Dolor de pecho lado izquierdo: Causas y Remedios para.. In some embodiments of the invention, the capture element includes at least a first part (such as an upper part) and a second part (such as a lower part), said first part being arranged so that said lift force acts on said first part, said second part being more flexible and/or more elastic than said first part and being arranged to connect said first part to a base, so that when said lift force acts on said capture element, said capture element sways with regard to said base. Figure 7 also illustrates schematically how the capture element 100, in an area close to its base or in its base, comprises an elastic core 1 13 surrounded by piezoelectric material 1 1 1.

The combination of an elastic core surrounded by piezoelectric material has been considered to be especially appropriate for allowing efficient control of the natural oscillation frequency. In accordance with this aspect of the invention, the capture element comprises, preferably in correspondence with a portion adjacent or close to a base of the capture element, an elastic core surrounded by piezoelectric material, and means for applying voltage to said piezoelectric material so as to modify the natural resonance frequency of the capture element. The frequency of oscillation or swaying of the capture element can be very low, for example, of just a few Hz or even less. In general, the capture element can have considerable dimensions, for example, a length of several metres or tens of metres, and oscillation frequency or swaying of the capture element can be very low, for example of just a few Hz or even less. When the capture element 100 inclines towards the sides driven by the lift force 304 (see figure 2), the first magnets 1 1 interact with the second magnets 12, in such a way that each time the capture element inclines to one side, the effect explained in relation to figures 5A-5C is produced, and the same occurs when the capture element returns to the neutral position, etc.

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La fatiga y el dolor muscular son los síntomas más.. That is, the free ends of said generator piezoelectric elements on a first level may have a more pronounced curvature than the free ends of the generator piezoelectric elements on another level, such as a higher level. In some embodiments of the invention, the pole can comprise an upper or first portion 100A that can be relatively rigid, and a lower or second portion 100B that is more flexible or elastic than the first portion, so that the deformation of the pole during operation takes place substantially in relation to the lower portion 100B. In some embodiments, the first portion 100A makes up more than 50%, 75%, 90% or even more of the total extension of the pole in the vertical direction. One reason for this is that cheaper materials and layouts can be used for the first and major portion, whereas the second portion may require carefully selected materials and designs to provide for the required flexibility or elasticity, and for adequate duration.

Said part of piezoelectric material can, for example, be disposed in the form of a sheath that surrounds an elastic or flexible core of the capture element, for example, in a zone near the base of the capture element, for example, in the lower part of the capture element. This lift force 304 periodically varies in sign, with a frequency marked by the appearance of the vortices, and this force makes the capture element 100 oscillate to one side and the other. Therefore, in order to maximise the energy capture of the capture element, it may be desirable for the vortices to appear in a synchronised manner throughout the capture element 100. Given that the wind speed, according to the Hellmann exponential Law, increases with height, and given that the frequency of the appearance of vortices depends on both the wind speed and on the characteristic dimension of the capture element (in this case, the diameter of the capture element), it is appropriate for the diameter of the capture element to increase with height, in a proportional manner to the increase in wind speed.

Figures 5D and 5E schematically illustrate the variation of kinetic energy and amplitude, respectively, with time, for three different ways of triggering the generator piezoelectric element. In each cycle of oscillation this kinetic energy decreases (the piezoelectric element gradually stops) due to the fact that it has been transforming into electrical energy and into losses. Figure 10 schematically illustrates how the generator piezoelectric elements 1 are placed so that they extend radially with regard to the lower part 100B of the capture element. For example, FR-2922607-A1 describes an electrical energy generator wherein a type of pole is supported on piezoelectric elements, in such a way that when the pole is driven or moved by the wind, the movement of the pole transforms into electrical energy through the piezoelectric elements.

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The capture element can be of a post or pillar type. In this way, the generator piezoelectric element can oscillate in respect of said side fixed in the base, in the manner of a springboard or cantilever, once it has been released in step (b) described further above. In some embodiments of the invention, the capture element has one end immobilised, for example, fixed to a base, for example, in the ground or in a structure disposed in the sea, and can have the other end free, in such a way that it can oscillate freely. Remedio casero para dolor de rodilla . The, at least one, first magnet and the, at least one, second magnet are associated to each other and to the generator piezoelectric element in such a way that when the first magnet is moved repetitively due to movement of said moveable element with the generator in the mode of electrical energy generation, steps (a) and (b) occur repetitively due to the interaction between the first magnet and the second magnet.

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For example, a first magnet associated to the capture element can cause the displacement of a second magnet associated to the generator piezoelectric element in such a way that said deformation of the generator piezoelectric element occurs, for example, a bending of the piezoelectric element in respect of a fixed point thereof; subsequently, the generator piezoelectric element can return to its initial configuration in an oscillating manner, producing electrical energy. It has been found that this kind of radial arrangement of the generator piezoelectric elements allows for a compact arrangement of the generator piezoelectric elements and also allows a large proportion of said generator piezoelectric elements 1 to be triggered by the movement of the capture element 100, as explained above, irrespective of the direction in which the wind is blowing.

The generator of the invention can comprise or be associated to a control and regulation sub-system that also regulates said working voltage. Therefore, to increase their economic attractiveness, it is important to enhance their efficiency, for example, in terms of the performance of the installations compared to their overall cost, which includes the cost of manufacture, cost of installation and cost of maintenance. The natural oscillation frequency of any structure depends on the damping to which it is subjected. For example, WO-2012/017106-A1 describes an electrical energy generator based on wind having a pole made up of a plurality of elements with high electromechanical coupling, a term which encompasses piezoelectric elements. The anchoring base 101 may include a housing 102 which may be closed with, for example, a cover 103, and in which there is a control subsystem 104, which may be connected to a central control centre (not shown) via cable and/or via radiofrequency or any other means, and which may serve, on the one part, to apply control signals to the aerogenerator and, on the other part, to condition the generated electrical energy and direct it to conduction means 201 external to the aerogenerator, by means of a connection cable 105 or several connection cables.

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On the other hand, the capture element 100 features dome-shaped lateral extensions 1 10, one such dome-shaped lateral extension being placed above each level of generator piezoelectric elements 1. The generator can have a large number of generator piezoelectric elements; basically, the number, size and capacity of each generator piezoelectric element can be selected in order to guarantee on the one hand maximum use of the energy captured by the capture element in normal operating conditions, and on the other hand to minimise costs, taking into account the prices for generator piezoelectric elements. As a result, it can be advantageous to have a control system that regulates the natural oscillation frequency of the capture element by acting on both the extraction of the electrical energy from the generator piezoelectric elements, and on the piezoelectric material that forms part of the capture element.

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3 formas de aliviar el dolor de la espalda baja - wikiHow It is believed that this may be due to the fact that the presence of a repulsing magnetic field accelerates the oscillating movement at the start thereof, with a force that is inversely proportional to the square of the distance between the magnets. Figure 5E illustrates how the amplitude of the movement (A, in cm) of the piezoelectric cantilever evolves with time (t, in seconds).