Envíos recientes

  • Experimental realization of an epsilon-near-zero graded-index metalens at terahertz frequencies 

    Pacheco Peña, Víctor; Engheta, Nader; Kuznetsov, Sergei; Gentselev, Alexandr; Beruete Díaz, Miguel (American Physical Society, 2017)   Artículo / Artikulua
    The terahertz band has been historically hindered by the lack of efficient generators and detectors, but a series of recent breakthroughs have helped to effectively close the “terahertz gap.” A rapid development of terahertz ...
  • Circuit and multipolar approaches to investigate the balance of powers in 2D scattering problems 

    Liberal Olleta, Íñigo; Ederra Urzainqui, Íñigo; Gonzalo García, Ramón; Ziolkowski, Richard W. (EMW Publishing, 2013)   Artículo / Artikulua
    Circuit and multipolar approaches are presented to investigate the correlation between absorption and scattering processes in 2D problems. This investigation was inspired by earlier works of Prof.R.E. Collin, which pointed ...
  • Simplifying the feeding network for multi-beam circular antenna arrays by using corps 

    Panduro, Marco A.; Río Bocio, Carlos del (EMW Publishing, 2011)   Artículo / Artikulua
    An innovative way to analyze the design of beam-forming networks (BFN) for scannable multi-beam circular antenna arrays using the CORPS (Coherently Radiating Periodic Structures) concept is introduced. This design of ...
  • Polarization-tunable negative or positive refraction in self-complementariness-based extraordinary transmission prism 

    Navarro Cía, Miguel; Beruete Díaz, Miguel; Falcone Lanas, Francisco Javier, Sorolla Ayza, Mario (EMW Publishing, 2010)   Artículo / Artikulua
    Here we report a prism made of stacked quasi-selfcomplementary extraordinary transmission surfaces which allows simultaneously left- and right-handed propagation within the V-band for vertical and horizontal polarizations, ...
  • Ultra-wideband metamaterial filter based on electroinductive-wave coupling between microstrips 

    Navarro Cía, Miguel; Carrasco, J.M.; Beruete Díaz, Miguel; Falcone Lanas, Francisco Javier (EMW Publishing, 2009)   Artículo / Artikulua
    In this work, we analyse the frequency response of microstrip lines coupled by complementary split ring resonators (CSRRs) etched on the ground plane supporting electroinductive waves (EIWs). The single-particle ...
  • Surface waves of finite size electromagnetic band gap woodpile structures 

    Ederra Urzainqui, Íñigo; Iriarte Galarregui, Juan Carlos; Gonzalo García, Ramón (EMW Publishing, 2011)   Artículo / Artikulua
    This paper studies the surface modes at the interface of finite size Electromagnetic Band Gap (EBG) woodpile structures. The impact of different types of woodpile terminations on the properties of these surface modes is ...
  • Wideband backscattering reduction at terahertz using compound reflection grating 

    Orazbayev, Bakhtiyar; Rodríguez Ulibarri, Pablo; Beruete Díaz, Miguel (Optical Society of America, 2017)   Artículo / Artikulua
    Backscattering reduction is usually achieved by using either absorbers or diffractions gratings at the expense of a narrow bandwidth. In this paper, we propose a different strategy based on a metallic compound reflection ...
  • 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 ...

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