Envíos recientes

  • Modelling fibrillation potentials: analysis of time parameters in the muscle intracellular action potential 

    Rodríguez Falces, Javier; Malanda Trigueros, Armando; Gila Useros, Luis; Rodríguez Carreño, Ignacio; Navallas Irujo, Javier (IEEE, 2007)   Artículo / Artikulua
    A single fibre action potential (SFAP) can be modelled as the convolution of a biolectrical source and a filter impulse response. In the Dimitrov-Dimitrova (D-D) convolutional model, the first temporal ...
  • A new muscle architecture model with non-uniform distribution of muscle fiber types 

    Navallas Irujo, Javier; Malanda Trigueros, Armando; Gila Useros, Luis; Rodríguez Falces, Javier; Rodríguez Carreño, Ignacio (World Academy of Science, Engineering and Technology, 2007)   Artículo / Artikulua
    According to previous studies, some muscles present a non-homogeneous spatial distribution of its muscle fiber types and motor unit types. However, available muscle models only deal with muscles with homogeneous ...
  • Motor unit action potential duration, II: a new automatic measurement method based on the wavelet transform 

    Rodríguez Carreño, Ignacio; Gila Useros, Luis; Malanda Trigueros, Armando; García Gurtubay, Ignacio; Mallor Giménez, Fermín; Gómez Elvira, Sagrario; Rodríguez Falces, Javier; Navallas Irujo, Javier (Lippincott, Williams & Wilkins, 2007)   Artículo / Artikulua
    To present and evaluate a new algorithm, based on the wavelet transform, for the automatic measurement of motor unit action potential (MUAP) duration. A total of 240 MUAPs were studied. The waveform of each MUAP was ...
  • Motor unit action potential duration, I: variability of manual and automatic measurements 

    Rodríguez Carreño, Ignacio; Gila Useros, Luis; Malanda Trigueros, Armando; García Gurtubay, Ignacio; Mallor Giménez, Fermín; Gómez Elvira, Sagrario; Rodríguez Falces, Javier; Navallas Irujo, Javier (Lippincott, Williams & Wilkins, 2007)   Artículo / Artikulua
    To analyze the variability in manual measurements of motor unit action potential (MUAP) duration and to evaluate the effectiveness of well-known algorithms for automatic measurement. Two electromyographists carried out ...
  • Signal processing in ocean bottom seismographs for refraction seismology 

    Rodríguez Barbarin, Iban; Mànuel Lázaro, Antonio; Carlosena García, Alfonso; Bermúdez, Antoni; Río, Joaquín del; Panahi, Shahram Shariat (IEEE, 2006)   Artículo / Artikulua
    This paper presents some experimental results on the application of signal processing techniques to underwater seismic signals. The novelty of this paper stems from the fact that it is the first paper, to the best of the ...
  • Independent component analysis as a tool to eliminate artifacts in EEG. A quantitative study 

    Iriarte, Jorge; Urrestarazu, Elena; Valencia Ustárroz, Miguel; Alegre, Manuel; Malanda Trigueros, Armando; Viteri, César; Artieda, Julio (Lippincott, Williams & Wilkins, 2003)   Artículo / Artikulua
    Independent component analysis (ICA) is a novel technique that calculates independent components from mixed signals. A hypothetical clinical application is to remove artifacts in EEG. The goal of this study was to apply ...
  • Implementation and control of a residential electrothermal microgrid based on renewable energies, a hybrid storage system and demand side management 

    Pascual Miqueleiz, Julio María; Sanchís Gúrpide, Pablo; Marroyo Palomo, Luis (MDPI, 2014)   Artículo / Artikulua
    This paper proposes an energy management strategy for a residential electrothermal microgrid, based on renewable energy sources. While grid connected, it makes use of a hybrid electrothermal storage system, formed by a ...
  • Optimization of a pin surface as a solution to suppress cavity modes in a packaged W-band microstrip receiver 

    Rebollo Mugueta, Ainara; Gonzalo García, Ramón; Íñigo Ederra Urzainqui (IEEE, 2014)   Artículo / Artikulua
    A pin surface structure has been used in the upper metal plate of a packaged W-band RF front-end receiver in order to suppress the propagation of unwanted modes. A full parametric analysis of the periodic structure within ...
  • A multipolar analysis of near-field absorption and scattering processes 

    Liberal Olleta, Íñigo; Ederra Urzainqui, Íñigo; Gonzalo García, Ramón; Ziolkowski, Richard W. (IEEE, 2013)   Artículo / Artikulua
    A multipolar formulation is adopted to investigate the absorption and scattering processes involved in near-field interactions. This approach allows one to determine the upper bounds for the absorbed and radiated powers ...
  • Least upper bounds of the powers extracted and scattered by bi-anisotropic particles 

    Olleta Liberal, Íñigo; Ra´di, Younes; Gonzalo García, Ramón; Ederra Urzainqui, Íñigo; Tretyakov, Sergei, A.; Ziolkowski, Richard W. (IEEE, 2014)   Artículo / Artikulua
    The least upper bounds of the powers extracted and scattered by bi-anisotropic particles are investigated analytically. A rigorous derivation for particles having invertible polarizability tensors is presented, and the ...
  • Near-field electromagnetic trapping through curl-spin forces 

    Liberal Olleta, Íñigo; Ederra Urzainqui, Íñigo; Gonzalo García, Ramón; Ziolkowski, Richard W. (American Physical Society, 2013)   Artículo / Artikulua
    Near-field electromagnetic trapping of particles is generally obtained bymeans of gradient forces. In this paper, we discuss the attractive behavior of curl-spin forces, as well as their potential for near-field ...
  • Electromangetic force density in electrically and magnetically polarizable media 

    Liberal Olleta, Íñigo; Ederra Urzainqui, Íñigo; Gonzalo García, Ramón; Ziolkowski, Richard W. (American Physical Society, 2013)   Artículo / Artikulua
    The force density induced by electromagnetic fields in electrically and magnetically polarizable media is studied analytically. Different formulations of the force density as a function of field-related quantities, ...
  • Circuit approach to the minimal configuration of terahertz anomalous extraordinary transmission 

    Beruete Díaz, Miguel; Navarro Cía, Miguel; Kuznetsov, Sergei A.; Sorolla Ayza, Mario (American Institute of Physics, 2011)   Artículo / Artikulua
    In this letter we present an in-depth circuit analysis of anomalous extraordinary transmission ET through subwavelength slit and hole arrrays loaded by a dielectric slab. We show the key role played by the thickness of the ...
  • Design of concentric ring antenna arrays for isoflux radiation in GEO satellites 

    Reyna, Alberto; Panduro, Marco A.; Río Bocio, Carlos del (Institute of Electronics, Information and Communication Engineers (IEICE), 2011)   Artículo / Artikulua
    The design of concentric rings arrays for isoflux radiation is reported in this paper. This design considers the reduction of the side lobe level and the isoflux radiation requirements for Geostationary Earth Orbit (GEO) ...
  • Resolution capabilities of future THz cameras 

    Lizarraga Cubillos, Juan Camilo; Río Bocio, Carlos del (Radioengineering Society, 2011)   Artículo / Artikulua
    THz technology for developing imaging systems has recently aroused great interest, mainly due to the large number of applications in which these frequencies can be used: security, vision in hard environments, etc. In ...
  • Decoupling of multifrequency dipole antenna arrays for microwave imaging applications 

    Sáenz Sainz, Elena; Guven, K.; Ozbay, E.; Ederra Urzainqui, Íñigo; Gonzalo García, Ramón (Hindawi Publishing Corporation, 2010)   Artículo / Artikulua
    The mutual coupling between elements of a multifrequency dipole antenna array is experimentally investigated by S-parameter measurements and planar near-field scanning of the radiated field. A multifrequency array with ...
  • Characterization of microring filters for differential group delay applications 

    Doménech, D.; Chamorro Posada, P.; Fraile Pelaez, F.J.; Erro Betrán, María José; Tainta Ausejo, Santiago; Muriel, M.A.; Baños, R.; Bolten, J.; Kleinjans, H. (IEEEOptical Society of America, 2017)   Artículo / Artikulua
    The longitudinal offset technique permits to improve the accuracy of the coupling coefficients of integrated directional couplers and provides designs that can be easily implemented with current fabrication tolerances. ...
  • Experimental demonstration of phase resonances in metallic compound gratings with subwavelength slits in the millimeter wave regime 

    Navarro Cía, Miguel; Skigin, Diana C.; Beruete Díaz, Miguel; Sorolla Ayza, Mario (AIP Publishing, 2009)   Artículo / Artikulua
    We provide experimental evidence of phase resonances in metallic periodic structures in which each period comprises several subwavelength slits of the same width. We have analyzed and measured the response of these ...
  • Negative refraction through an extraordinary transmission left-handed metamaterial slab 

    Beruete Díaz, Miguel; Navarro Cía, Miguel; Sorolla Ayza, Mario; Campillo, Igor (American Physical Society, 2009)   Artículo / Artikulua
    In this work we present numerical and experimental results of negative refraction through a negative index metamaterial based on miniaturized extraordinary transmission stacked subwavelength hole arrays, also known as ...
  • Converging biconcave metallic lens by double-negative extraordinary transmission metamaterial 

    Navarro Cía, Miguel; Beruete Díaz, Miguel; Sorolla Ayza, Mario; Campillo, Igor (AIP Publishing, 2009)   Artículo / Artikulua
    In this letter we present simulation and experimental results of a left-handed converging biconcave metallic lens made of stacked subwavelength hole arrays SSHAs working in the millimeter wave range with additional ...

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