Abstract:
PROBLEM TO BE SOLVED: To provide a light source unit which is safe to the eye of a human body and switches fast. SOLUTION: The light source unit is equipped with one or more laser light sources which emit light in one or more colors, a diffuser 3 which diffuses (transmits, reflects, or mixes) luminous flux made incident from the laser light source 1 directly or through a light convergence system 2, and an optical system 4 called a collimator which collimates the diffused luminous flux projected by the diffuser 3.
Abstract:
Sistema de regeneración parcial en turbinas de gas de ciclos combinados con una o varias fuentes de calor.Ciclo combinado que contiene:- dos ramales (7) y (8) por los que circula el flujo de escape de la turbina (1);- una caldera de recuperación de calor (14) dividida en dos cuerpos: de alta temperatura y menor temperatura;que permiten que el ciclo de gas (1) sea regenerativo sin perder temperatura en la parte más caliente de la caldera de recuperación ni reducir la temperatura del fluido del ciclo de baja temperatura (18).También puede incluirse una instalación solar o de otro tipo (20) que transfiera energía térmica al ciclo de baja temperatura (18).El sistema actúa para mejorar el rendimiento del ciclo combinado, a plena carga o a cargas parciales y, si existe hibridación con otra fuente de energía, para mejorar además el rendimiento de la turbina de vapor.
Abstract:
The invention relates to a biotechnological application of the RAV1 (Related to ABI3 and Viviparous 1) gene and the RAV2 counterpartthereof in relation to the capacity thereof, when the expression levels thereof or the activity of the proteins that they encode are modified, to increase or decrease the development of sylleptic and/or proleptic branches in ligneous species. The modification of the expression of said genes enables an increase in the production of biomass of a plantation of ligneous species, or a reduction in the number of knots in the trunk of ligneous species for use as timber.
Abstract:
The invention relates to a novel document security and authentication system based on a transparent element on which more than one image appears depending on the manner in which said element is viewed. The system is based on cells or sheets of liquid crystal doped with one or more dichroic dyes. The images obtained with the aid of a polarizer can be printed onto a very thin (µm or 10 tens of a µm) sheet of polymer material; said images may also be in greyscale or in colour. There is no need to apply electrical signals during the production or use thereof.
Abstract:
The invention achieves an increase in the net electric power supplied to the mains network by solar thermal power stations with cylindrical parabolic collectors, by making efficient use of the solar field, generating steam to drive the main auxiliaries by steam turbines (turbo pumps), reducing the electricity consumption of the auxiliary services and increasing the net electric power. On days when the solar radiation is greater than that for which the system was designed, part of the solar field will not be used because the generator and the turbine would exceed the power level assigned to them. The proposed system uses the unused portion of the solar field to generate steam to drive the main auxiliaries of the power station, energy that would otherwise not be utilized. In addition, the pumps of auxiliary services are driven more efficiently overall when use is made of steam to drive the pumps via a turbo pump instead of driving them with electric motors (motor pumps).
Abstract:
Optimized-cost method for computer-assisted calculation of the aerodynamic forces in an aircraft, so as to provide values of dimensional variables, dependent on a predefined set of parameters, for the entire aircraft or aircraft component, which comprises the following steps: a) defining a mesh in the parametric space; b) obtaining a suitable reduced order model (ROM), in particular a POD model, for calculating said variables for any point in the parametric space by means of a repetitive process. CFD is used to calculate said variables at a set of suitably selected points in the parametric space, which are used to obtain approximate values, via ROM and ad-hoc interpolation, of the dimensional variables at any other point of the parametric space. The method minimizes the required number of CFD calculations (so as to minimize the computational cost which depends basically on this number) for a given error level.
Abstract:
The invention relates to an epitaxial reactor for the large-scale production of wafers, which comprises a high-performance system for use in the photovoltaic industry. The main innovation of the invention lies in the high susceptor stack density, said susceptors being separated from one another by 4 cm. According to the invention, the susceptors are positioned vertically parallel to one another, interconnected and heated by the Joule effect. The current arrives through specially-designed bushings which connect the exterior (ambient temperature) with the susceptors (1000 °C). A gas flows between the susceptors. In addition, substrates are positioned on the susceptors and an antechamber is disposed therebelow in order to distribute the inlet gas uniformly and to eliminate turbulence. The aforementioned assembly is disposed in a stainless steel chamber which is coated internally with a reflective material and which is cooled externally with water. The susceptors and the antechamber are fixed to a rear connection panel which also contains electrical bushings, thermocouple bushings and a gas inlet and outlet. The outlet gases are partially recirculated, thereby saving gas and increasing efficiency.
Abstract:
The invention relates to a method of testing the stability of vessels, using clinometers. The inventive method is based on: (i) an algorithm developed in order to enable the use of gravity clinometers in vessels, which discriminates the component of the signal due to the angle of heel, despite the rolling of the vessel; and (ii) a methodology consisting in considering the equilibrium states from a dynamic view point, taking account of disturbances in the heel torque, unlike the standard view point which comprises a static consideration of the process. The method is performed with a device comprising an original system for calibration of the clinometer and another system, which can be used to record changes over time in the measurement, to analyse same and to establish reliability indices. The system can also be used to determine the centre of gravity of a vessel using a novel system, independently of the stability testing.
Abstract:
The invention relates to a method specially designed for detecting events associated with partial discharges (PDs) in high-voltage cables, comprising the identification of the location and the evaluation of the amplitude and rate of repetition per period of the grid voltage, with the possibility of identifying different sources producing PD signals as a function of the location thereof and recognising the type of fault associated with PDs in the same location, including the measurement of the generated electric signals and the discrimination thereof in relation to the background noise. The invention also relates to a system for carrying out said method, comprising means for discriminating the noise in relation to the transient waveform of the PD, determining the parameters associated therewith, determining the map of sources of PDs along the length of the cable, graphically representing said sources, and identifying the patterns of the separated PD sources as a function of the location thereof along the length of the cable.
Abstract:
An integrated system is disclosed for collecting, storing, regulating and distributing energy in a building without the need to use energy supplied by the public grid, only re-using the renewable sources of energy available in the ambient conditions around and in the building (fresh air, ambient humidity, ). The system first collects energy for cooling or heating from the ambient air using ventilators for aspirating air through windows in the walls and cavities in the ground. This collected energy passes through gels which go from the solid state to the liquid state, storing energy by means of their phase change. The system then works in the reverse direction, distributing the collected energy by means of a phase change of the gels. A data processing system controls the totality of the system.