Now showing items 1-20 of 20

    • A map characterizing the fuzzy points and columns of a T-indistinguishability operator 

      Boixader Ibáñez, Dionís; Recasens Ferrés, Jorge (2005-10)
      Article
      Open Access
      A new map (ΛE) between fuzzy subsets of a universe X endowed with a T-indistinguishability operator E is introduced. The main feature of ΛE is that it has the columns of E as fixed points, and thus it provides us with a ...
    • Averaged similarities generable by single attributes 

      Boixader Ibáñez, Dionís; Recasens Ferrés, Jorge (2015)
      Conference report
      Open Access
      In a theoretical setting, the Representation Theorem is used to generate T-indistinguishability operators (fuzzy similarity relations) from a given set of fuzzy criteria. In applied domains, though, other ways of generation ...
    • Characterization of unidimensional averaged similarities 

      Boixader Ibáñez, Dionís; Recasens Ferrés, Jorge (2017-09-01)
      Article
      Open Access
      A T-indistinguishability operator (or fuzzy similarity relation) E is called unidimensional when it may be obtained from one single fuzzy subset (or fuzzy criterion). In this paper, we study when a T-indistinguishability ...
    • Design of reluctance generator for an improved wave energy system 

      Barrera Martínez, Marc (Universitat Politècnica de Catalunya, 2018-06-26)
      Bachelor thesis
      Open Access
      As nowadays the electrical generation sources are moving so fast from fossil to renewable energy sources, is crucial to develop these new technologies and improve it to reach an equivalent energy sources as the old ones, ...
    • Disseny d'un microgenerador destinat a una turbina eòlica d'eix vertical 

      Pons Cardona, Alejandro (Universitat Politècnica de Catalunya, 2014-06-11)
      Bachelor thesis
      Open Access
      El present projecte consistirà en el disseny d’un microgenerador destinat a una turbina eòlica d’eix vertical. Aquest serà un generador síncron d’imants permanents de rotor exterior, el qual treballarà a baixes velocitats. ...
    • Eigenvectors and generators of fuzzy relations 

      Jacas Moral, Juan; Recasens Ferrés, Jorge (-, 1992)
      Conference report
      Restricted access - publisher's policy
      A new geometric approach to the study of the eigenvectors is provided. The T-eigenvectors of a T-indistinguishability operator are characterized as its generators in the sense of the representation theorem of L. Valverde ...
    • Estudi de la viabilitat de l’ús d’un motor generador en el desenvolupament de bicicletes elèctriques 

      Ultrarán Vázquez, Carles (Universitat Politècnica de Catalunya, 2014-07)
      Bachelor thesis
      Restricted access - author's decision
      [CATALÀ] El present projecte tracta sobre la viabilitat de la implementació d'un motor generador per a bicicletes elèctriques. Actualment un canvi en la normativa (UNE-EN 15194:2009 + A1), limita la potència dels motors ...
    • Estudi de la viabilitat de l’ús d’un motor generador en el desenvolupament de bicicletes elèctriques 

      Hermoso Romerales, Jennifer (Universitat Politècnica de Catalunya, 2014-07)
      Bachelor thesis
      Restricted access - author's decision
      [CATALÀ] El present projecte tracta sobre la viabilitat de la implementació d'un motor generador per a bicicletes elèctriques. Actualment un canvi en la normativa (UNE-EN 15194:2009 + A1), limita la potència dels motors ...
    • Estudi de la viabilitat de l’ús d’un motor generador en el desenvolupament de bicicletes elèctriques 

      Malonda Cabistany, Oriol (Universitat Politècnica de Catalunya, 2014-07)
      Bachelor thesis
      Restricted access - author's decision
      [CATALÀ] El present projecte tracta sobre la viabilitat de la implementació d'un motor generador per a bicicletes elèctriques. Actualment un canvi en la normativa (UNE-EN 15194:2009 + A1), limita la potència dels motors ...
    • Estudi de la viabilitat de l’ús d’un motor generador en el desenvolupament de bicicletes elèctriques 

      Torres Verón, Francisco (Universitat Politècnica de Catalunya, 2014-07)
      Bachelor thesis
      Restricted access - author's decision
      [CATALÀ] El present projecte tracta sobre la viabilitat de la implementació d'un motor generador per a bicicletes elèctriques. Actualment un canvi en la normativa (UNE-EN 15194:2009 + A1), limita la potència dels motors ...
    • Estudio para realizar una instalación solar fotovoltaica de autoconsumo en la EPSEVG 

      Carrasco Morillas, Daniel (Universitat Politècnica de Catalunya, 2020-02-06)
      Bachelor thesis
      Open Access
      [CASTELLA] El presente proyecto, trata sobre la realización de un estudio para la instalación de un generador fotovoltaico en la cubierta de la EPSEVG (Escola Politècnica Superior d'Enginyeria de Vilanova i la Geltrú). ...
    • Generador oxihidrógeno para motor de combustión interna 

      Cebrián López, Héctor (Universitat Politècnica de Catalunya, 2014-06-11)
      Bachelor thesis
      Open Access
      La pujada de preus dels carburants per la crisi econòmica actual motiva a investigar fonts d'energia alternatives. Les fonts d'energia convencionals com els combustibles fòssils són contaminants i costoses, i l'hidrogen ...
    • Hybrid reluctance machines with U-shaped electromagnets and permanent magnets 

      Andrada Gascón, Pedro; Blanqué Molina, Balduino; Martínez Piera, Eusebio; Torrent Burgués, Marcel; Rolando Ávila, Oscar; Gomila, Marc; Adelantado, Xavier (2015-03-01)
      Article
      Open Access
      This paper is about hybrid reluctance machines, in which the stator or fixed part has a combination of U-shaped electromagnets with permanents magnets placedbetween their arms while the moving part is simply a structure ...
    • Low speed permanent magnet generator 

      Karpa, Kacper (Universitat Politècnica de Catalunya, 2019-01-24)
      Bachelor thesis
      Restricted access - author's decision
      Covenantee:   Politechnika Warszawska
      The main purpose of this rapport is to design a generator with a high efficiency for a low speed appliance. The process of the design will be clearly described and results and simulations are discussed throughout. Software ...
    • One-dimensional T-preorders 

      Boixader Ibáñez, Dionís; Recasens Ferrés, Jorge (IOS Press, 2014)
      Conference report
      Open Access
      This paper studies T-preorders by using their Representation Theorem that states that every T-preorder on a set X can be generated in a natural way by a family of fuzzy subsets of X. Especial emphasis is made on the study ...
    • Renewable sun power 

      Ihle, Johannes; Ionut-Marius, Drobroaia; Bin Ilias, Mohd Hafizul; Brandenburg, Niels; Porras Domínguez, Víctor; Faes, Wim (Universitat Politècnica de Catalunya, 2014-06)
      Bachelor thesis
      Open Access
      This is the final report for an EPS project in Vilanova I La Geltrú, Catalunya, Spain. A team of six people of different nationalities are working together with a company to complete the project. Working in a team with ...
    • Renewable sun power 

      Ihle, Johannes; Drobroaia, Ionuț-Marius; Bin Ilias, Mohd Hafizul; Porras, Víctor; Faes, Wim (Universitat Politècnica de Catalunya, 2013)
      Bachelor thesis
      Restricted access - author's decision
      Covenantee:   Integral Design and Development / Millennium Energy Systems
      This is the final report for an EPS project in Vilanova I La Geltrú, Catalunya, Spain. A team of six people of different nationalities are working together with a company to complete the project. Working in a team with ...
    • Searching for meaning on defuzzification 

      Recasens Ferrés, Jorge; Boixader Ibáñez, Dionís; Jacas Moral, Juan (1999-10)
      Article
      Restricted access - publisher's policy
      Defuzzification is an essential problem in fuzzy systems that it is always solved in a heuristic way. The aim of this work is to give a semantic interpretation to this process with the help of indistinguishability operators
    • Upper and Lower Approximations of Fuzzy Sets 

      Boixader Ibáñez, Dionís; Jacas Moral, Juan; Recasens Ferrés, Jorge (2000-09)
      Article
      Restricted access - publisher's policy
      The upper and lower approximations of a fuzzy subset with respect to an indistinguish-ability operator are studied. Their relations with fuzzy rough sets are also investigated
    • Wind fleet generator fault detection via SCADA alarms and autoencoders 

      Beretta, Mattia; Cárdenas Araujo, Juan José; Koch, Cosmin; Cusidó Roura, Jordi (Multidisciplinary Digital Publishing Institute, 2020-12)
      Article
      Open Access
      A hybrid health monitoring system for wind turbine generators is introduced. The novelty of this research consists in approaching a 115-wind turbine fleet by using the fusion of multiple sources of information. Analog SCADA ...