Browsing by Subject "Electric resistance"

Now showing items 1-14 of 14

    • A 3D-FEM-based model to predict the electrical constriction resistance of compressed contacts 

      Riba Ruiz, Jordi-Roger; Mancini, Antonio-Giuseppe; Abomailek Rubio, Basel Carlos; Capelli, Francesca (2017-09-11)
      Article
      Open Access
      This work proposes a method to estimate the electrical constriction resistance of two mating metallic rough surfaces based on the finite element method (FEM). The FEM-based method generates a random array of three-dimensional ...

    • Analysing the pressure effect on the contact resistance of electrical connections 

      Riba Ruiz, Jordi-Roger; Bas Calopa, Pau (2022-02-17)
      Article
      Open Access
      We propose an experiment intended for undergraduate laboratories, with the aim to introduce different novelties as a subject for a practical session or students project. We deal with the different components of the resistance ...

    • Analysis of the dynamic short-circuit resistance in organic bulk-heterojunction solar cells: relation to the charge carrier collection efficiency 

      Voz Sánchez, Cristóbal; Puigdollers i González, Joaquim; Asensi López, José Miguel; Galindo Lorente, Sergi; Cheylan, S.; Pacios, R.; Ortega Villasclaras, Pablo Rafael; Alcubilla González, Ramón (2013-06)
      Article
      Restricted access - publisher's policy
      This work studies the charge carrier collection efficiency in organic bulk-heterojunction solar cells based on polymer:fullerene blends. An equivalent circuit with a specific recombination term is proposed to describe the ...

    • Application of multiwall carbon nanotubes to increase the wear resistance of electrical contacts 

      Bravo Mutlló, Axel (Universitat Politècnica de Catalunya / Universität Saarlandes, 2013)
      Bachelor thesis
      Restricted access - author's decision
      Covenantee:   Universität des Saarlandes
      Present thesis, is an interdisciplinary project intended to develop an easy applicable, wear durable and electrical contact enhancer for electrical connectors. Employing an already extensively explored carbon nanotubes ...

    • Characterizing the temperature dependence of the contact resistance in substation connectors 

      Riba Ruiz, Jordi-Roger; Martínez Reyes, Jimmy Arturo; Moreno Eguilaz, Juan Manuel; Capelli, Francesca (Elsevier, 2021-04)
      Article
      Open Access
      The electrical resistance, and in particular, the electrical contact resistance (ECR), plays a critical role in the electrical and thermal behaviors of substation connectors. Despite its impact, there are very few research ...

    • Comportamiento PTC en composites de nanofibras de carbono obtenidos mediante tecnologia tape casting 

      Pina Romero, Beatriz (Universitat Politècnica de Catalunya, 2012-02)
      Master thesis
      Restricted access - author's decision
      La idea original de este proyecto surge del departamento de investigación y desarrollo de la empresa Francisco Albero S.A.U., de aquí en adelante FAE, la cual con una antigüedad de más de 50 años, es especialista en el ...

    • Denoising of online resistance measurements of power connectors for IoT applications 

      Liu, Yuming; Riba Ruiz, Jordi-Roger; Moreno Eguilaz, Juan Manuel; Sanllehí Muñoz, Josep (Institute of Electrical and Electronics Engineers (IEEE), 2023)
      Conference lecture
      Open Access
      The increasing development of the Internet of Things (IoT) allows the acquisition of key parameters to develop health monitoring strategies for power transmission systems. These IoT devices need to incorporate sensors for ...

    • Magnetic field sensitivity of variable thickness microbridges in tbcco, bscco and ybco. 

      Davidson, B. A.; Redwing, R. D.; Nguyen, T. D.; O'Callaghan Castellà, Juan Manuel; Raissi, F.; Lee, J. V.; Bruke, J. P.; Hohenwarter, G. K. G.; Nordman, J. E.; Beyer, J. B. (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1994-12-31)
      Article
      Open Access
      We describe results of a study comparing the magnetic field sensitivities of variable thickness bridge (VTB) arrays fabricated in TBCCO, BSCCO, and YBCO thin films. Identical structures were patterned in a variety of films, ...

    • Nanotecnología para la calefacción de componentes de automóvil 

      Carod de Arriba, Xavier; Ferreté Aymerich, Eduard; Casanova Hormaechea, Ignasi; González Benítez, María Margarita; Mendoza Gómez, Ernesto (2012)
      Conference lecture
      Open Access
      Desde hace ya unos años, el sector de la automoción centra sus esfuerzos en fabricar productos cada vez más eficientes y respetuosos con el medio ambiente. El creciente interés en desarrollar modelos eléctricos, ha ...

    • Propiedades dieléctricas y electroquímicas de concretos sustentables 

      Corral Higuera, Ramón; Arredondo Rea, Susana Paola; Neri Flores, Miguel Angel; Orozco Carmona, V.; Gómez Soberón, José Manuel Vicente; Almeraya Calderón, F.; Almaral Sánchez, Jorge Luis (2010)
      Conference report
      Open Access
      Como estrategias para contribuir en la sustentabilidad de la industria del concreto se está proyectando mejorar la durabilidad de las estructuras de concreto reforzado y el reemplazo parcial o total de sus ingredientes por ...

    • Redefining the EV battery end of life: internal resistance related limitations 

      Etxandi Santolaya, Maite; Canals Casals, Lluc; Corchero García, Cristina (Energy proceedings, 2022)
      Conference report
      Open Access
      Currently Electric Vehicle batteries are considered to reach the End of Lifeonce their State of Health reaches70-80%. However, notions of circular economy suggest that the battery first-life should be extended as much as ...

    • Reduced microwave losses YBa[sub 2]Cu[sub 3]O[sub 7 - delta] thin films on electro-optic LiNbO[sub 3] crystals 

      Fàbrega i Soler, Lluís; Rubí, R.; Fontcuberta, Josep; Sánchez, F.; Ferrater Martorell, Cesar; García-Cuenca Varona, Victoria; Varela, M.; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; Menéndez Nadal, Óscar; O'Callaghan Castellà, Juan Manuel (AMER INST PHYSICS, 2002-10-31)
      Article
      Open Access
      We report on the growth of epitaxial YBa2Cu3O7 thin films on X-cut LiNbO3 single crystals. The use of double CeO2/YSZ buffer layers allows a single in-plane orientation of YBa2Cu3O7, and results in superior superconducting ...

    • Thermal behavior of energy-efficient substation connectors 

      Capelli, Francesca; Riba Ruiz, Jordi-Roger; Gonzalez Farre, David (2016)
      Conference report
      Open Access
      The contact resistance is the key variable that characterizes the stable performance and long-term service of an electrical connection. It is worth noting that the contact resistance in substation connectors can be several ...

    • Unpredictable bits generation based on RRAM parallel configuration 

      Arumi Delgado, Daniel; Gómez Pau, Álvaro; Manich Bou, Salvador; Rodríguez Montañés, Rosa; Bargalló, Mireia; Campabadal, Francesca (2018-12-12)
      Article
      Open Access
      In this letter a cell with the parallel combination of two TiN/Ti/HfO2/W resistive random access memory (RRAM) devices is studied for the generation of unpredictable bits. Measurements confirm that a simultaneous parallel ...