Abstract: A system and a method avoids the collision of a vehicle with animals tending to cross the road before the moving vehicle. Such system comprises a visual system directly actuating a RF emitter, or more RF emitters, emitting directional sound waves with a frequency above 25,000 Hz. Sound waves are directed frontally though with a frequency decreasing from the center of the roadway towards the road edge, so as to lead the animal to move towards the road edge.

Abstract: The present invention relates to a miniaturized device controlled by electromagnetic signals in the radiofrequency range for controlled release of substances or for controlled sampling of specimens, comprising a reservoir, and a closing system associated to said reservoir, where said closing system is constituted by a valve structure, closing-opening of which is controlled by the electromagnetic signal in the radiofrequency range.

Abstract: A light emitting ambipolar device of the type comprising at least a first and a second main electrode in electrical contact through a light emitting region comprising at least one carrier recombination layer and further comprising one or more further electrodes for controlling recombination in said light emitting region wherein said first and second main electrode and said one or more further electrodes for controlling the recombination in said light emitting region are arranged in planar configuration relative to said region, said one or more further electrodes for controlling the recombination identifying one or more insulating channels with respect to said light emission comprising said at least one carrier recombination layer.

Abstract: An emitter (F) for incandescent light sources, in particular a filament, capable of being brought to incandescence by the passage of electric current is obtained in such a way as to have a value of spectral absorption ? that is high in the visible region of the spectrum and low in the infrared region of the spectrum, said absorption ? being defined as ?=1???T, where ? is the spectral reflectance and T is the spectral transmittance of the emitter.

Abstract: A light source comprises a matrix of micro-filaments able to emit light by incandescence when powered by an electrical current. According to the invention, on the matrix electrical and/or mechanical connections are obtained by means of agglomerations of carbon nanotubes at least partially ordered with respect to each other.

Abstract: A method is described for producing a light source comprising a complex of filaments able to emit light by incandescence when powered by an electrical current. The method includes a step of extending a single uninterrupted wire along a complex path defined by a plurality of positioning elements positioned remotely from each other, the path being such that segments of the uninterrupted wire that extend from different positioning elements mutually cross each other.

Abstract: A method is described for producing a light source comprising a matrix of micro-filaments able to emit light by incandescence when powered by an electrical current. According to the invention, on the matrix electrical and/or mechanical connections are obtained by means of an agglomeration of carbon nanotubes at least partially ordered with respect to each other. The matrix can be formed extending a single uninterrupted wire, some segments whereof mutually cross.

Abstract: The invention describes a microaircraft, which can be associated for instance to a cellular phone, provided with at least four microrotors actuated with compressed fluid or by ring-shaped electric motors.

Abstract: An electrical energy generator device comprising an array of micro-fans each associated to a respective dynamo-electric generator by means of a respective connecting shaft, further comprises, for at least some of the micro-fans (3), a lug element (6) associated to the respective connecting shaft (4) which mechanically co-operates at each revolution with a piezoelectric element (7), for the production of additional electrical energy. In addition or instead of the aforesaid arrangement, it is possible to provide plates (10) made of piezoelectric material which vibrate in the flow of air that invests them, thereby producing electrical energy.

Abstract: A system for the production of electrical energy, comprising: a combustion chamber (14) made of material that is able to withstand high temperatures, an injection device (16) connected to said combustion chamber (14) by means of an injection conduit (15), means (17) for supplying combustion support substance into the combustion chamber (14) and means (18) for the removal of gaseous combustion products, means (26) for the selective emission of radiation onto the outer surface of the combustion chamber (14). The combustion chamber (14) is enclosed in a conversion chamber (20) within which are maintained sub-atmospheric pressure conditions, so that a substantial part of the heat developed by the combustion reaction is converted into electromagnetic radiation.

Abstract: VTOL micro-aircraft comprising a first and a second ducted rotor mutually aligned and distanced according to a common axis and whose propellers are driven in rotation in mutually opposite directions. Between the two ducted rotors are positioned a fuselage and a wing system formed by wing profiles forming an X or an H configuration and provided with control flaps.

Abstract: A shape memory shutter device for controlling the rectum of a disabled person, comprising a section of conduit to be connected to the rectum of the disabled person, shutter means which control the passage through the conduit section and shape memory actuator means for actuating said shutter means. The shutter means comprise a plurality of petals positioned circumferentially around said conduit section and able to move between a closed and an open position. The actuator means preferably comprise shape memory wires, for example associated directly to the petals and means for supplying an electrical current through said wires to cause its opening. Preferably, sensors of the presence of material to be evacuated within the device are provided, to generate an alarm signal that can be detected by the patient. The patient can thus positively command the opening of the shutter device.

Abstract: A process for manufacturing an electroluminescent device comprising the steps of: making an organic or inorganic templating frame, comprising monodispersed nanoelements, in particular nanospheres; providing said nanoelements with a sheath consisting of metal nanoparticles, each nanoelement with its sheath of metal nanoparticles forming a core shell. The core shells are assembled together so as to make the three-dimensional percolated layer, having cavities whose size is around wavelength.

Abstract: A light emitting device comprises a substrate, a porous alumina layer having a regular series of cavities of nanometric size containing an emitting material, and two electrodes in contact with the emitting material and connected to an electric voltage source. The first electrode comprises at least part of an aluminum film deposited onto the substrate, on which the alumina layer has been previously grown through an anodization process.

Abstract: The object of the invention is a collection device that can be carried by disabled persons, comprising a section of duct, destined to be connected to the rectum of the person, an expansible container, connected to said section of duct, and a shutter device interposed in the aforesaid section of duct and controlled by actuator means, for example shape-memory or electromagnetic means, activated by the signal of a sensor.

Abstract: Described herein is a microgenerator of electrical energy with a high power density, which uses an internal-combustion micromotor with two combustion chambers set opposite to one another, within which a piston is displaced with reciprocating motion. The piston is at least in part made of magnetic material and is wound with a coil, within which is generated an electric current by induction. The fuel, the oxidant, and preferably a catalyst, are injected into each of the two combustion chambers by means of injectors that are substantially of the same type as those used in ink-jet printer heads. The dimensions of the device are comparable to those of a 1.5-V NiCd battery of a traditional standard type.

Abstract: A direct injection Diesel engine is provided with a support (8) coated with a catalyser material which occupies at least a part of the space within the cylinder (1), to promote a catalytic combustion and reduce harmful exhaust gases.

Abstract: A lighting device has a light source, comprising a volume (11) inside which combustion of a fuel-comburent mixture is confined. A photonic crystal structure (16) is positioned inside the volume (11). The photonic crystal structure (16) operates to inhibit or limit emission from said passage of at least a part of infrared radiation and simultaneously allow emission of visible light radiation. (FIG.

Abstract: Bidimensional or three-dimensional, single-layer or multilayer nanostructure, whose electric conductivity B in the total structure has a highly non-linear behavior due to local tunnel effect between adjacent clusters, and it can be varied at will by varying the voltage applied to the electrodes.

Abstract: A light-emitting device comprises a light source in the form of an incandescent filament, a substantial part of which is integrated in a host element having at least one portion structured according to nanometric dimensions. The nano-structured portion is in the form of a photonic crystal or of a Bragg grating, for the purpose of obtaining an amplified or increased emission of radiation in the region of the visible.