Enviaments recents

  • A dust cleaning system for solar arrays on Mars using pressurized CO2 

    Arias Montenegro, Francisco Javier (2018-11-15)
    Article
    Accés restringit per política de l'editorial
    Obtaining CO2 from the Martian atmosphere through a freezing process has been proposed during de last decade as a means of obtaining high-pressure gas without having to use mechanical and sorption pumps -which, besides ...
  • Magnetic Mars dust removal technology: a dustblasting technique for Mars 

    Arias Montenegro, Francisco Javier (2018-01)
    Article
    Accés restringit per política de l'editorial
    It is known that the Martian atmosphere contains a large amount of suspended dust. The saltation process, or gravitational settlement of atmospheric dust, onto the surface of solar arrays can affect the utility of solar ...
  • Bond graph simulation of error propagation in position estimation of a hydraulic cylinder using low cost accelerometers 

    Algar, Antonio; Codina Macià, Esteban; Freire Venegas, Francisco Javier (2018-10-01)
    Article
    Accés obert
    The indirect calculation from acceleration of transversal displacement of the piston inside the body of a double effect linear hydraulic cylinder during its operating cycle is assessed. Currently an extensive effort exists ...
  • Analysis and calibration of Ground Penetrating Radar shielded antennas 

    Rasol, M.; Pérez Gracia, María de la Vega; Santos Assunçao, Sonia (2018)
    Text en actes de congrés
    Accés obert
    Ground-Penetrating Radar (GPR) is a non-destructive geophysical method applied in many civil engineering applications. The knowledge of the GPR antennas behavior is crucial to obtain accurate results and comprehensive data ...
  • Effect of rotor spinning transfer channel modification on fiber orientation and yarn properties 

    Lin, Huiting; Akankwasa, Nicholus Tayari; Bergadà Granyó, Josep Maria; Wang, Jun (2018-11-07)
    Article
    Accés restringit per política de l'editorial
    The vortices are generated at the conventional transfer channel, having adverse effects on fiber configuration. In a former research, a conventional transfer channel was modified via rounding the transfer channel inlet ...
  • Axisymmetric vibrations of a circular Chladni plate in air and fully submerged in water 

    Escaler Puigoriol, Francesc Xavier; De La Torre, Oscar (2018-10-10)
    Article
    Accés restringit per política de l'editorial
    In this study, experimental and numerical analyses were performed to determine the effects of water loading on the axisymmetric modes of vibration of a circular plate. The plate was harmonically excited at its centre through ...
  • CFD study of the supercritical transesterification of triolein: Wall-to-fluid/ particle-tofluid transport effects 

    Mekala, Samuel Jedidiah; Fontanals García, Alfred; Guardo Zabaleta, Alfredo de Jesús (2019-01)
    Article
    Accés restringit per política de l'editorial
  • Medidas sísmicas instantaneas del fondo marino 

    Roset Juan, Francesc Xavier; Trullols Farreny, Enric; Prat Farran, Joana d'Arc; Río Fernandez, Joaquín del; Massana Hugas, Immaculada; Carbonell Ventura, Montserrat; Toma, Daniel (International Centre for Numerical Methods in Engineering (CIMNE), 2018)
    Text en actes de congrés
    Accés restringit per política de l'editorial
    El proyecto INMARSIS ha desarrollado y desplegado un equipo marino anclado que suministra datos sísmicos en tiempo real. El sistema se basa en un sismómetro submarino, una boya de superficie y un cable de amarre que ...
  • A simplified methodology to evaluate the design specifications of hydraulic components 

    Roquet, Pedro; Gámez Montero, Pedro Javier; Castilla López, Roberto; Raush Alviach, Gustavo Adolfo; Codina Macià, Esteban (Multidisciplinary Digital Publishing Institute, 2018-09-11)
    Article
    Accés obert
    The fatigue of a hydraulic component inherently varies due to various factors that can be divided into two categories: structural and load spectrum variability. The effects of both variabilities must be considered when ...
  • Ferrohydrodynamic capillary convection 

    Arias Montenegro, Francisco Javier; Heras Jiménez, Salvador Augusto de las (2018-09-30)
    Article
    Accés restringit per política de l'editorial
    In this work consideration is given to capillary convection on ferrofluids owing to the concentration gradient generated when a non-homogeneous magnetic field is applied. It is known that mass transfer along an interface ...
  • On inflatable drones for flight time enhancement with particular reference to spectator aerostation 

    Arias Montenegro, Francisco Javier (2018-08-30)
    Report de recerca
    Accés obert
    In this note consideration is given to drones - and specially quadcopters, endowed with inflatable and controllable airbags filled with helium which is stored in small and replaceable cartridges. The goal is the a flight ...
  • Three dimensional simulation of gerotor with deforming mesh by using OpenFOAM 

    Castilla López, Roberto; Gámez Montero, Pedro Javier; Raush Alviach, Gustavo Adolfo; Codina Macià, Esteban (2018)
    Text en actes de congrés
    Accés obert
    A new-born design and construction of a mini gerotor metering pump with trochoidal-teeth is presented. The technical innovation in this new-born design is to study the fluid dynamic effects of interteeth and lateral ...

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