Active filter to improve the energetic efficiency in electric installations.

The Department of Electrical Engineering of the University Carlos III of Madrid has developed a prototype of active filter to compensate the disturbances that a nonlinear load produces. The active filters appears like the dynamic solution that best fits to the needs of compensation of electrical disturbances in industrial facilities. This active filter allows correcting the power factor of the installation. With this improvement, electrical consumes are reduced, which results in significant cost savings

Innovation and Knowledge Management : using the combined approach TRIZ-CBR in Process System Engineering

In this article, a TRIZ based model is proposed to support the innovation and knowledge capitalization process. This model offers a knowledge base structure, which contains several heuristics to solve problems, synthesized from a large range of domains and industries and, also, the capacity to capture, store and make available the experiences produced while solving problems

Case Based Reasoning and TRIZ : a coupling for Innovative conception in Chemical Engineering

With the evolutions of the surrounding world market, researchers and engineers have to propose technical innovations. Nevertheless, Chemical Engineering community demonstrates a small interest for innovation compared to other engineering fields. In this paper, an approach to accelerate inventive preliminary design for Chemical Engineering is presented. This approach uses Case Based Reasoning (CBR) method to model, to capture, to store and to make available the knowledge deployed during design. CBR is a very interesting method coming from Artificial Intelligence, for routine design. Indeed, in CBR the main assumption is that a new problem of design can be solved with the help of past successful ones. Consequently, the problem solving process is based on past successful solutions therefore the design is accelerated but creativity is limited and not stimulated. Our approach is an extension of the CBR method from routine design to inventive design. One of the main drawbacks of this method is that it is restricted in one particular domain of application. To propose inventive solution, the level of abstraction for problem resolution must be increased. For this reason CBR is coupled with the TRIZ theory (Russian acronym for Theory of solving inventive problem). TRIZ is a problem solving method that increases the ability to solve creative problems thanks to its capacity to give access to the best practices in all the technical domains. The proposed synergy between CBR and TRIZ combines the main advantages of CBR (ability to store and to reuse rapidly knowledge) and those of TRIZ (no trade off during resolution, inventive solutions). Based on this synergy, a tool is developed and a mere example is treated

Inductive Sensor for measuring partial discharges in electrical machines

The research group 'Diagnosis of Electrical Machines and Insulation Materials (DIAMAT) of the University Carlos III of Madrid, has developed an inductive sensor that can detect and measure partial discharge that are characteristic in electrical machines (its analysis allows to estimate the aging degree of the internal insulation)

The TRIZ-CBR synergy: A knowledge based innovation process

Today innovation is recognised as the main driving force in the market. This complex process involves several intangible dimensions, such as creativity, knowledge and social interactions among others. Creativity is the starting point of the process, and knowledge is the force that transforms and materialises creativity in new products, services and processes. In this paper a synergy that aims to assists the innovation process is presented. The synergy combines several concepts and tools of the theory of inventive problem solving (TRIZ) and the case-based reasoning (CBR) process. The main objective of this synergy is to support creative engineering design and problem solving. This synergy is based on the strong link between knowledge and action. In this link, TRIZ offers several concepts and tools to facilitate concept creation and to solve problems, and the CBR process offers a framework capable of storing and reusing knowledge with the aim of accelerating the innovation process

Filtro activo para la mejora de la eficiencia energética en instalaciones eléctricas

El Dpto. de Energía Eléctrica de la Universidad Carlos III de Madrid ha diseñado un prototipo de filtro activo para compensar las perturbaciones que produce en la señal una carga no lineal. Los filtros activos se presentan como la solución dinámica que más se ajusta a las necesidades de compensación de perturbaciones eléctricas en instalaciones industriales. Este filtro activo permite corregir el factor de potencia de la instalación, al estar la señal de tensión y de corriente en fase. Con esta mejora, la facturación eléctrica se reduce, consiguiéndose un significativo ahorro económico

Tratamiento de efectos osteocondriales en conejos tratados con células madre.mesenquimales alogénicas en matriz de polímero termosensible: prueba de concepto

En este trabajo hemos desarrollado un modelo experimental para llevar a cabo el estudio del tratamiento de defectos osteocondrales en rodillas de conejos, realizado en condiciones controladas, para la posterior realización del mismo siguiendo una metodología homogénea y optimizada. Hemos seleccionado la raza Nueva Zelanda Blanco, siguiendo los protocolos de anestesia y eutanasia legalmente establecidos para la experimentación animal. Nuestro trabajo se ha centrado en tres aspectos para desarrollar el modelo experimental: 1. Elección material quirúrgico 2. La técnica quirúrgica a emplear 3. Elección de las concentraciones y cantidades de células madre y matriz necesarias para rellenar adecuadamente los defectos realizadosGrado en Medicin

Inequalities in digital welfare take-up: lessons from e-government in Spain

This is an Accepted Manuscript version of the following article, accepted for publication in Policy Studies 43.5 (2022): 1096-1111. It is deposited under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives License (http://creativecommons.org/licenses/by-nc-nd/4.0/), which permits non-commercial re-use, distribution, and reproduction in any medium, provided the original work is properly cited, and is not altered, transformed, or built upon in any wayE-government offers opportunities for improving the interactions between citizens, governmental and public institutions, private sector organizations, and public employees. Despite this, the take-up of e-government services has been vastly uneven in many societies with considerable digital divides existing. This study identifies the determinants of use of e-government in Spain through an analysis of the Survey on Equipment and Use of information and Communication Technologies in Households. A Path Analysis Model was used to identity the variables that explain why almost half of the Spanish population does not make use of E-government and how these variables are related. Two large groups of variables were found to be important: digital skills and trust in the Internet. Digital skills were affected by an individual citizens’ resources, such as their educational level and economic resources, as well as by age and gender. Meanwhile, their trust in the Internet was shaped by other attitudes and beliefs – mainly their concern about being targeted by advertising. These findings have important consequences for the design of policies to address digital inclusion across Europe and elsewhere, which need to focus on building citizen's trust.This work was supported by Fundación Española para la Ciencia y la Tecnologí