Enviaments recents

  • Anharmonicity in multifrequency atomic force microscopy 

    Santos Hernandez, Sergio; Barcons Xixons, Víctor (2014-07)
    Report de recerca
    Accés obert
    In multifrequency atomic force microscopy higher eigenmodes are externally excited to enhance resolution and contrast while simultaneously increasing the number of experimental observables with the use of gentle forces. ...
  • Deconstructing the governing dissipative phenomena in the nanoscale 

    Santos Hernandez, Sergio; Amadei, Carlo Alberto; Tang, Tzu-Chieh; Barcons Xixons, Víctor; Chiesa, Matteo (2014-01)
    Report de recerca
    Accés obert
    An expression describing the controlling parameters involved in short range nanoscale dissipation is proposed and supported by simulations and experimental findings. The expression is deconstructed into the geometrical, ...
  • Wearing a single DNA molecule with an AFM tip 

    Santos Hernandez, Sergio; Barcons Xixons, Víctor; Font Teixidó, Josep; Thomson, Neil H. (2015-06)
    Report de recerca
    Accés obert
    While the fundamental limit on the resolution achieved in an atomic force microscope (AFM) is clearly related to the tip radius, the fact that the tip can creep and/or wear during an experiment is often ignored. This is ...
  • Dynamic geometry based on geometric constraints 

    Freixas Boleda, Marc; Joan Arinyo, Robert; Soto Riera, Antoni; Vila Marta, Sebastià (2007-07)
    Report de recerca
    Accés obert
    Dynamic geometry systems are tools for geometric visualization. They allow the user to define geometric elements, establish relationships between them and explore the dynamic behavior of the remaining geometric elements ...
  • Design of a synchronous superregenerative receiver at 2.4 GHz 

    Moncunill Geniz, Francesc Xavier (2003-06)
    Report de recerca
    Accés obert
    En aquest treball es descriu el procés de disseny i avaluació d'un receptor superregeneratiu per a la banda ISM de 2.4 GHz. El receptor utilitza un nou mode de funcionament en el qual el senyal d'extinció opera síncronament ...

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