Instituto Superior Tecnico Patent applications |
Patent application number | Title | Published |
20160108885 | AIR TURBINE FOR APPLICATIONS IN WAVE ENERGY CONVERSION - The present invention relates to an air turbine capable of without change in its rotational velocity direction, efficiently absorbing the energy associated with a pressure difference between two spaces (A) and (B) of successively changing sign, as in the case of sea wave energy systems. The turbine comprises two sets of blades (I) and (II), each of which is similar to the blade system of a conventional turbine of radial-, mixed- or axial-flow type. The turbine also comprises a system of ducts that connect spaces (A) and (B) through any of the two blade sets (I) and (II). The turbine may be equipped with a fast-acting valve that stops the flow through one or both blade sets (I) and (II). | 04-21-2016 |
20140361871 | DEVICE AND METHOD FOR CONTINUOUS BIOMETRIC RECOGNITION BASED ON ELECTROCARDIOGRAPHIC SIGNALS - Signal measurement for biometric recognition purpose includes a computational unit and a sensory unit designed to measure electrocardiographic (ECG) signals in a continuous fashion, guaranteeing that the biometric recognition is performed in an uninterrupted way whenever the device is used, with the purpose of enabling the automated recognition or validation of the identity of its wearer. The sensory unit has an electronic module through which the ECG is acquired. Its operating principle can be based in the electrical conductivity, in which case it requires contact with the skin of the user, or in any kind of capacitive or mechanical element, in which case it does not require any direct contact with the user. The device can be used in alternative or as a complement to existing systems that only perform a momentary identity check. It can be applied to vehicles, tablet computers or analogous contexts. | 12-11-2014 |
20110189485 | PROCESS FOR COVERING RUBBER PARTICLES WITH A POLYMERIC FILM AND COVERED RUBBER GRANULATES OBTAINED BY THIS PROCESS - The invention relates to a process for covering rubber particles with a continuous functional layer of polymeric nature, characterized by the use of a rotating drum with variable speed drive allowing for a progressive reduction of the speed and a pre-blend of a setting and filmifiable reactive fluid comprising a liquid resin selected from alkyd resins, polyvinyl chloride resin, urethane alkyd resins, polyurethane-urea resins and reactive polyester resins. The invention also relates to covered granulates obtained by this process. | 08-04-2011 |
20100092628 | METHOD FOR SIMULTANEOUS CONCENTRATION AND RECTIFICATION OF GRAPE MUST USING NANOFILTRATION AND ELECTRODIALYSIS - The invention described herein relates to a process for the simultaneous concentration and rectification of grape must with the retention of the volatile aromas precursors. The process consists in the integration of nanofiltration in concentration/diafiltration modes, with electrodialysis. The nanofiltration membranes exhibit selective permeation controlled by steric hindrance mechanisms and/or electrostatic interactions. | 04-15-2010 |
20080290321 | Fluorescent Polymers Soluble in an Aqueous Solution and a Method for the Production Thereof - The invention relates to fluorescent polymers soluble in an aqueous solution carrying at least 5 fluorophores which are distributed on the polymer and which exhibit the following properties:
| 11-27-2008 |