Abstract:
The invention relates to a method and an apparatus for obtaining various indicators relating to a person's cardiovascular system, exclusively using measurements from the person's feet, bringing the feet into mechanical contact with a plurality of electrodes arranged on a surface on which the person can stand or which the person can touch with their feet when sitting down. The set of electrodes used enables the electrocardiogram (ECG) to be obtained between the two feet and the impedence plethysmogram (IPG) from one foot. The IPG reflects the change in volume when the arterial pulse arrives. The amplitude and shape of the wave of the IPG and the delay between the wave R of the ECG and a characteristic point of the IPG provide information about the cardiovascular system, especially about the elasticity of the arteries and about the arterial pressure.
Abstract:
The invention relates to a system and method for the simultaneous, non-invasive estimation of blood glucose, glucocorticoid level and blood pressure. It includes a module (2) that detects the activity of a digitized signal acquired by a sensor (1), that represents the distal pulse of an individual, selecting a segment of consecutive signal samples of fixed duration s window(t), using the same to generate subwindows s window (t,n) of lesser duration; a signal processing module (4) that receives the two signals s window (t) and ssegment (t,n) and outputs a vector XF with the parameters of a physiological model; and an automatic-learning module (5) that receives the vector XF and information on the characteristics of the individual, and provides an estimate of the blood glucose level (BGL), the systolic blood pressure (SBP), the diastolic blood pressure (DBP) and the glucocorticoid level(GCL).
Abstract:
Device and method for diagnosing short circuits in AC electric motors, which device is composed of a set of three identical resistances arranged in a star, forming a floating neutral, a voltage sensor which measures the zero sequence voltage, and an electronic system which makes it possible to carry out frequency processing on the voltage signal, taking into account the rotational speed of the motor.
Abstract:
The invention relates to a system and a method for characterising the optical quality and the pseudoaccommodation range of multifocal means used for correcting visual defects. The invention is suitable for bifocal, multifocal or progressive intraocular lenses or contact lenses, multifocal corneal ablation or other multifocal configurations, and comprises: means for projecting the image of a point light source on the retina of a patient, and an assembly for directly recording the light reflected from the retina following the double passage of the light through the ocular means. The system comprises a first focus correction device inserted in the path of the light beam guided towards the retina, and a second focus correction device inserted in the light beam reflected from the retina and to be guided towards the recording means, both of said focus correction devices having independent means for controlling the operation thereof.
Abstract:
The invention relates to a method for exploiting stubble, comprising a previous phase of conditioning the stubble, involving the operations of harvesting and parching by separating the straw and the seed plants; obtaining two fractions respectively corresponding to the leaflet or the pith; and cutting the straw in order to obtain a low-density fraction and a second high-density fraction from which subsequently two further fractions corresponding to the pith or the fibre are obtained, and an exploitation phase wherein at least part of the leaflet fractions is burned in order to obtain calorific energy, part of the fibre fraction is used in the production of papermaking pulp, and alcohol and lignin as sub-products, part of the pith fractions obtained is used in the production of animal feed, and the parts of the fractions not used in the production of the cited products are used to obtain alcohol and/or animal feed.
Abstract:
The invention relates to a method for obtaining heart rate and respiratory rate from a traditional electronic scale, using only the weight sensors provided in the scale and without any action being exerted on the user, whereby the user simply has to stand on the scale. Moreover, it is not necessary for the user to remove his/her shoes, to grip any element or to position him/herself on the scale platform in a pre-determined manner. The information is obtained through the electronic processing of the signal from the weight sensors (1) built into the electronic scale. The high-frequency components of the signal are separated using a high-pass filter (2), amplified with a very high gain (3) and processed (5) in order to detect heart rate and respiratory rate, while a weight amplifier (4) having a much lower gain than that of the above-mentioned amplifier (3) obtains a signal proportional to weight, which the processor (5) can store (6), display (7) or communicate (8) together with or independently of the heart rate and the respiratory rate.
Abstract:
The invention concerns a novel catalyst device, the method for manufacture thereof and use thereof in solid-gas heterogeneous phase reactions for obtaining hydrogen. In particular, said catalyst device comprises a support coated with an aerogel, said aerogel comprising at least one transition metal. The device as per the invention can be heated in air and does not require a preliminary activation stage for carrying out reformate reactions with ethanol vapour or bioethanol reformate in order to obtain hydrogen, and is therefore especially suitable for generating hydrogen in situ.
Abstract:
The receiver comprises a first optical fibre input element (2) through which an information carrying element (S1) circulates, a local laser unit (3), an optical detection unit (4) and a differential demodulation unit (5). Characterised in that the information carrying signal (S1) of the input optical fibre (2) and the light beam (h1) generated by the local laser unit (3) are connected and detect in an optical detection block (4), which converts the information carrying signal (S1) into an electrical information carrying signal (S2) to be processed electrically in a demodulation unit (5) which performs a differential demodulation of the phase and quadrature components thereof, and subsequently combines same. The result in an optical receiver (1) with homodyne optical detection, the wavelengths of the input signal S1 and the synthonised light beam h1 coinciding, with high tolerance to the phase noise generated by optical communications lasers and not requiring use of an optical phase monitor (OPLL).
Abstract:
The invention essentially consists of a hybrid system formed by: a differential radiometer with an electronic beamformer for measuring "the sea brightness temperature" of the sea surface being analysed, using a selectable angle of incidence; a GNSS reflectometer provided with another electronic beamformer for measuring "the sea state" of the sea surface being analysed, said reflectometer including a Doppler-Delay Map (DMM) generator module for obtaining the DDM map in real time for four satellites simultaneously; an infrared radiometer for estimating the physical temperature of the sea surface being analysed; and a radiometer calibration system.