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Ara es mostren els items 38-57 de 97

    • Heat flow dynamics in thermal systems described by diffusive representation 

      Domínguez Pumar, Manuel; Atienza García, María Teresa; Kowalski, Lukasz; Novio Vázquez, Santiago; Gorreta Mariné, Sergio; Jiménez Serres, Vicente; Silvestre Bergés, Santiago (Institute of Electrical and Electronics Engineers (IEEE), 2016-09-01)
      Article
      Accés obert
      The objective of this paper is to analyze the dynamics of heat flow in thermal structures working under constant temperature operation. This analysis is made using the tools of sliding mode controllers. The theory is ...

    • Heterojunction diodes and solar cells fabricated by sputtering of GaAs on single crystalline Si 

      Silvestre Bergés, Santiago; Boronat Moreiro, Alfredo (2015-04-23)
      Article
      Accés obert
      This work reports fabrication details of heterojunction diodes and solar cells obtained by sputter deposition of amorphous GaAs on p-doped single crystalline Si. The effects of two additional process steps were investigated: ...

    • High voltage ultrathin-photovoltaic minimodules: fabrication technology and application to bioimplantable telesupplying 

      Bermejo Broto, Sandra; Silvestre Bergés, Santiago; Ortega Villasclaras, Pablo Rafael (2013)
      Comunicació de congrés
      Accés restringit per política de l'editorial

    • High voltage ultrathin-photovoltaic minimodules: fabrication technology and application to bioimplantable telesupplying 

      Bermejo Broto, Sandra; Silvestre Bergés, Santiago; Ortega Villasclaras, Pablo Rafael (2014-05-01)
      Article
      Accés restringit per política de l'editorial
      In this work we show small (0.49 cm2) and thin (<70 µm) photovoltaic mini-generators capable of providing open circuit voltages up to 99 V and short circuit currents of 43 µA, achieving a maximum density power of 4.8 mW/cm2. ...

    • HIT intermediate-band solar cells with self-assembled colloidal quantum dots and metal nanoparticles 

      Tobias, Ignacio; Mendes, Manuel; Boronat Moreiro, Alfredo; Lopez, Ester; garcia linares, pablo; Artacho, Irene; Martí, Antonio; Silvestre Bergés, Santiago; Luque, Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      The particular opto-electronic properties of chemically synthesized colloidal nanoparticles can be promising for functional materials, as those required for high efficient photovoltaic (PV) devices. In particular, ...

    • Identifiying causes of power reduction in photovoltaic systems 

      Silvestre Bergés, Santiago; Chouder, Aissa (IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
      Comunicació de congrés
      Accés obert
      A procedure for the identification of main causes of power reduction in PV systems, based on the continuous check of the real measured losses and his comparison to simulation results obtained for the same parameter, ...

    • Influence of hydrogen on the optical absorption response of GaAs(Ti) films deposited by R.F. sputtering 

      Boronat Moreiro, Alfredo; Silvestre Bergés, Santiago; Castañer Muñoz, Luis María (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In the present work we have investigated the optical absorption behavior of GaAs(Ti) films deposited by r.f sputtering technique under different H2 partial pressures. In previous work we have already demonstrated the ...

    • Innovation strategies to develop specific professional skills on photovoltaic systems engineering 

      Silvestre Bergés, Santiago (Universitat Politècnica de Catalunya, 2022-09)
      Text en actes de congrés
      Accés obert
      This work describes experiences learned in teaching photovoltaic (PV) courses in Engineering Master Degrees at the UPC. These PV courses are included as elective courses in the Master of Energy Engineering included in the ...

    • Innovation strategies to develop specific professional skills on photovoltaic systems engineering 

      Silvestre Bergés, Santiago (Universitat Politècnica de Catalunya, 2022-09)
      Text en actes de congrés
      Accés obert
      This work describes experiences learned in teaching photovoltaic (PV) courses in Engineering Master Degrees at the UPC. These PV courses are included as elective courses in the Master of Energy Engineering included in the ...

    • Internet de las cosas 

      Salazar Soler, Jorge; Silvestre Bergés, Santiago (European Virtual Learning Platform for Electrical and Information Engineering, 2016-06-11)
      Llibre
      Accés obert
      Este es un curso de introducción a la IoT (Internet de las cosas). En los capítulos primeros capítulos se introducen los conceptos básicos sobre la IoT. Seguidamente se presentan nociones básicas sobre el protocolo de ...

    • Internet der Dinge 

      Salazar Soler, Jorge; Silvestre Bergés, Santiago (European Virtual Learning Platform for Electrical and Information Engineering, 2017-11-06)
      Llibre
      Accés obert
      Dieser Kurs bietet die Einführung zum Thema Internet der Dinge (engl. IoT, Internet of Things). In den ersten Kapiteln werden grundlegende Informationen über IoT präsentiert. Danach folgt die Beschreibung des im IoT am ...

    • Internet of things 

      Salazar Soler, Jorge; Silvestre Bergés, Santiago (European Virtual Learning Platform for Electrical and Information Engineering, 2017-11-06)
      Llibre
      Accés obert
      This is an introductory course to the IoT (Internet of things). In the early chapters the basics about the IoT are introduced. Then basics of IPv6 internet protocol that is the most used in IoT environment as well as main ...

    • Internet vecí 

      Salazar Soler, Jorge; Silvestre Bergés, Santiago (European Virtual Learning Platform for Electrical and Information Engineering, 2017-11-06)
      Llibre
      Accés obert
      Tento kurz je úvodem do problematiky internetu vecí (IoT – Internet of Things). V prvních kapitolách najdete základní informace týkající se IoT. Následuje prehled nejduležitejších vlastností protokolu, který se v oblasti ...

    • Internet vecí 

      Salazar Soler, Jorge; Silvestre Bergés, Santiago (European Virtual Learning Platform for Electrical and Information Engineering, 2016-11-08)
      Llibre
      Accés obert
      V súcasnosti architektúra založená na Internete dovoluje výmenu služieb a tovarov medzi prvkami, zariadeniami a objektami pripojenými do siete. IoT sa odvoláva na sietové pripojenie každodenných objektov, ktoré sú casto ...

    • Light harvesting photovoltaic mini-generator 

      Bermejo Broto, Sandra; Silvestre Bergés, Santiago; Ortega Villasclaras, Pablo Rafael; Herrera, Gerard (2011-08-23)
      Article
      Accés restringit per política de l'editorial
      In this work, the design, fabrication and characterisation of a millimetre-size photovoltaic (PV) energy source is described. The fabrication process is based on p-type silicon-on-insulator wafers. It is shown that scaling ...

    • Low pressure spherical thermal anemometer for space missions 

      Kowalski, Lukasz; Jiménez Serres, Vicente; Domínguez Pumar, Manuel; Gorreta Mariné, Sergio; Silvestre Bergés, Santiago; Castañer Muñoz, Luis María (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      The novelty of this 2D thermal anemometer is the spherical compact and robust design with improved sensitivity in the range of 600-900Pa of carbon dioxide pressure and 0.25 to 10 m/s wind speed. The small size (11.2mm ...

    • Modeling and simulation of a grid connected PV system based on the evaluation of main PV module parameters 

      Chouder, Aissa; Silvestre Bergés, Santiago; Sadaoui, Nawel; Rahmani, Lazhar (2012-01)
      Article
      Accés restringit per política de l'editorial
      In this work we present a new method for the modeling and simulation study of a photovoltaic grid connected system and its experimental validation. This method has been applied in the simulation of a grid connected PV ...

    • Monitoring, modelling and simulation of PV systems using LabVIEW 

      Chouder, Aissa; Silvestre Bergés, Santiago; Taghezouit, Bilal; Karatepe, Engin (2013-05)
      Article
      Accés restringit per política de l'editorial
      This paper presents a detailed characterization of the performance and dynamic behaviour of photovoltaic systems by using LabVIEW real-time interface system. The developed software tool integrates several types of instruments ...

    • New procedure for fault detection in grid connected PV systems based on the evaluation of current and voltage indicators 

      Silvestre Bergés, Santiago; Aires da Silva, Mario; Chouder, Aissa; Guasch Murillo, Daniel; Karatepe, Engin (2014-05-27)
      Article
      Accés restringit per política de l'editorial
      In this work we present a new procedure for automatic fault detection in grid connected photovoltaic (PV) systems. This method is based on the evaluation of new current and voltage indicators. Thresholds for these indicators ...

    • New tools to motivate STEM students towards early-career self-management 

      Torres Torres, Francisco; Kopecká, Eva; Garrido Soriano, Núria; Pechová, Helena; Silvestre Bergés, Santiago; Hrad, Jaromír; Zeman, Tomáš (Universitat Politècnica de Catalunya, 2022-09)
      Text en actes de congrés
      Accés obert
      The Universitat Politècnica de Catalunya (UPC), the Czech Technical University in Prague (CTU) and the Universidade de Lisboa have recently undertaken the Engine4STEMers project, a joint initiative devoted to generating a ...