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Recent Submissions

  • On Preconditioning Variable Poisson Equation with Extreme Contrasts in the Coefficients 

    Alsalti Baldellou, Àdel; Trias Miquel, Francesc Xavier; Gorobets, Andrey; Oliva Llena, Asensio (International Centre for Numerical Methods in Engineering (CIMNE), 2021)
    Conference report
    Open Access
    It is well known that the solution by means of iterative methods of very ill-conditioned systems leads to very poor convergence rates. In this context, preconditioning becomes crucial in order to modify the spectrum of the ...
  • Simulation of fluid-structure interaction and impact force on a reed valve 

    Castrillo Green, Pablo; Schillaci, Eugenio; Rigola Serrano, Joaquim (2021)
    Conference report
    Open Access
    The cyclic impact force between a reed valve and the seat plate is the main reason of the valve failure in many thermo-technical devices as compressors, engines, etc. According to experimental observations the latter is ...
  • Experimental and numerical analysis of reed valve movement in an impact fatigue test system and reciprocating compressors 

    Tofique, Muhammad Waqas; Löf, Alexander; Schillaci, Eugenio; Castrillo Green, Pablo; Rigola Serrano, Joaquim (Purdue University, 2021)
    Conference report
    Restricted access - publisher's policy
    During operation of a reciprocating compressor, its flapper valve opens to allow the passage of gases and closes by striking against the valve impact plate. This reed valve movement and impact is repeated billions of times. ...
  • Silk-reinforced collagen hydrogels with raised multiscale stiffness for mesenchymal cells 3D culture 

    Sanz Fraile, Héctor; Amorós García de Valdecasas, Susana; Mendizabal, Irene; Galvez Monton, Carolina; Prat Vidal, Cristina; Bayés Genis, Antoni; Navajas Navarro, Daniel; Farré Ventura, Ramon; Otero, Jordi (2020-03-01)
    Article
    Open Access
    Type I collagen hydrogels are of high interest in tissue engineering. With the evolution of 3D bioprinting technologies, a high number of collagen-based scaffolds have been reported for the development of 3D cell cultures. ...
  • Influence of alkaline delignification time on the moisture uptake behaviour of hemp 

    Manich Bou, Albert M.; Lis Arias, Manuel José; Perez Renetero, Sonia; Riba Moliner, Marta; Mijas Vélez, Gabriela Dayana; Martí Gelabert, Meritxell; Cayuela Marín, Diana (2021-09-20)
    Article
    Open Access
    The influence of the alkaline delignification of hemp on its moisture uptake has been studied under the project “Preparation and functionalization of hemp for textile substrates” focussed on the reduction of cotton imports ...
  • H3D-Net: Few-shot high-fidelity 3D head reconstruction 

    Ramon Maldonado, Eduard; Triginer Garcés, Gil; Escurt i Gelabert, Janna; Pumarola Peris, Albert; García Giráldez, Jaime; Giró Nieto, Xavier; Moreno-Noguer, Francesc (Computer Vision Foundation, 2021)
    Conference lecture
    Open Access
    Recent learning approaches that implicitly represent surface geometry using coordinate-based neural representations have shown impressive results in the problem of multi-view 3D reconstruction. The effectiveness of these ...
  • Automatic polyp detection using microwave endoscopy for colorectal cancer prevention and early detection: phantom validation 

    Garrido Atienza, Alejandra; Sont Colomer, Roberto; Dghoughi, Walid; Marcoval Martínez, Sergi; Romeu Robert, Jordi; Fernández-Esparrach, Glòria; Belda Reig, Ignasi; Guardiola Garcia, Marta (Institute of Electrical and Electronics Engineers (IEEE), 2021)
    Article
    Open Access
    A system to integrate microwave imaging with optical colonoscopy is presented. The overarching goal is to improve the prevention and early diagnosis of one of the main health and economic burdens of an increasingly aging ...
  • Large Eddy Simulation of the transient cavitating vortical flow in the wake of a hydrofoil 

    Chen, Jian; Geng, Linlin; Escaler Puigoriol, Francesc Xavier (2021)
    Conference report
    Open Access
    The Zwart mixture cavitation model and the Large Eddy Simulation (LES) turbulence model have been combined to simulate the transient cavitating flow in the wake of a hydrofoil. The hydrofoil is a 2D NACA0009 with a truncated ...
  • Novel flux-weakening strategy considering the saturation effects for electric vehicles 

    Miguel Espinar, Carlos; Heredero Peris, Daniel; Subirats Rillo, Oriol; Escaler Puigoriol, Francesc Xavier; Montesinos Miracle, Daniel (2021)
    Conference report
    Open Access
    This paper proposes an innovative control algorithm for Permanent Magnet Synchronous Machines (PMSMs), based on a Vector Current Control (VCC) strategy in order to operate in the Flux-Weakening (FW) zone and a Finite Element ...
  • Design of controller for virtual synchronous power plant 

    Tarraso Martínez, Andrés; Lai, Ngoc Bao; Verdugo Retamal, Cristian Andrés; Candela García, José Ignacio; Rodriguez, Pedro (2021-01-01)
    Article
    Open Access
    The increasing participation of renewables in power systems has forced system operators to strengthen grid codes requiring renewable power plants (RPPs) to provide fast frequency support such as inertia response and power ...
  • Revisión bibliográfica del cumplimiento en el uso y mantenimiento de las lentes de contacto 

    Alonso Matarín, Silvia; Cardona Torradeflot, Genís (2021)
    Conference lecture
    Restricted access - publisher's policy
  • On-line remaining useful life estimation of power connectors focused on predictive maintenance 

    Riba Ruiz, Jordi-Roger; Gómez Pau, Álvaro; Martínez Reyes, Jimmy Arturo; Moreno Eguilaz, Juan Manuel (Multidisciplinary Digital Publishing Institute (MDPI), 2021-05-27)
    Article
    Open Access
    Connections are critical elements in power systems, exhibiting higher failure probability. Power connectors are considered secondary simple devices in power systems despite their key role, since a failure in one such element ...

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