InaMat

Recent Submissions

  • The sky characterization according to the CIE Standard General Sky: comparative analysis of three classification methods 

    García Ruiz, Ignacio Upna; Blas Corral, María Ángeles de; Torres Escribano, José Luis Upna (Elsevier, 2020)   Artículo / Artikulua
    Since the publication of the standard sky luminance distributions (SSLD) that was consolidated in the ISO 15469:2004(E)/CIE S 011/E:2003, numerous procedures have emerged for the characterization of the sky condition ...
  • Orness for real m-dimensional interval-valued OWA operators and its application to determine a good partition 

    Miguel Turullols, Laura de Upna; Paternain Dallo, Daniel Upna; Lizasoain Iriso, María Inmaculada Upna; Ochoa Lezaun, Gustavo Upna; Bustince Sola, Humberto Upna (Taylor & Francis, 2019)   Artículo / Artikulua
    Ordered Weighted Averaging (OWA) operators are a profusely applied class of averaging aggregation functions, i.e. operators that always yield a value between the minimum and the maximum of the inputs. The orness measure ...
  • Lossy mode resonance sensors based on nanocoated multimode-coreless-multimode fibre 

    Vicente Gómara, Adrián; Santano, Desiree; Zubiate Orzanco, Pablo Upna; Urrutia Azcona, Aitor Upna; Del Villar, Ignacio Upna; Ruiz Zamarreño, Carlos Upna (Elsevier, 2020)   Artículo / Artikulua
    In this work it is proved the ability to obtain lossy mode resonances (LMRs) in the transmission spectrum with multimode-coreless-multimode fibre optic structure coated with tin oxide on the coreless segment. The devices ...
  • CFM-BD: a distributed rule induction algorithm for building compact fuzzy models in Big Data classification problems 

    Elkano Ilintxeta, Mikel Upna; Sanz Delgado, José Antonio Upna; Barrenechea Tartas, Edurne Upna; Bustince Sola, Humberto Upna; Galar Idoate, Mikel Upna (IEEE, 2020)   Artículo / Artikulua  OpenAccess
    Interpretability has always been a major concern for fuzzy rule-based classifiers. The usage of human-readable models allows them to explain the reasoning behind their predictions and decisions. However, when it comes to ...
  • Hg2+ optical fiber sensor based on LSPR generated by gold nanoparticles embedded in LBL nano-assembled coatings 

    Martínez Hernández, María Elena; Goicoechea Fernández, Javier Upna; Arregui San Martín, Francisco Javier Upna (MDPI, 2019)   Artículo / Artikulua  OpenAccess
    Mercury is an important contaminant since it is accumulated in the body of living beings, and very small concentrations are very dangerous in the long term. This paper reports the fabrication of a highly sensitive fiber ...
  • A radio channel model for D2D communications blocked by single trees in forest environments 

    Picallo Guembe, Imanol; Klaina, Hicham; López Iturri, Peio Upna; Aguirre Gallego, Erik Upna; Celaya Echarri, Mikel; Azpilicueta Fernández de las Heras, Leyre Upna; Eguizábal Garrido, Alejandro; Falcone Lanas, Francisco Javier Upna; Alejos, Ana (MDPI, 2019)   Artículo / Artikulua  OpenAccess
    In this paper we consider the D2D (Device-to-Device) communication taking place between Wireless Sensor Networks (WSN) elements operating in vegetation environments in order to achieve the radio channel characterization ...
  • Common-mode and phase-to-ground voltage reduction in back-to-back power converters with discontinuous PWM 

    Samanes Pascual, Javier Upna; Gubía Villabona, Eugenio Upna; Juankorena Saldias, Xabier Upna; Gironés Remírez, Carlos (IEEE, 2020)   Artículo / Artikulua
    Discontinuous space vector pulsewidth modulation (DSVPWM) techniques are an interesting option for three-phase, two-level power converters when efficiency is a key factor. Such is the case of back-to-back (B2B) power ...
  • Control design and stability analysis of power converters: the MIMO generalized bode criterion 

    Samanes Pascual, Javier Upna; Urtasun Erburu, Andoni Upna; Barrios Rípodas, Ernesto Upna; Lumbreras Magallón, David Upna; López Taberna, Jesús; Gubía Villabona, Eugenio Upna; Sanchís Gúrpide, Pablo Upna (IEEE, 2020)   Artículo / Artikulua
    Three-phase dynamic systems and multiphase generators are frequently modeled and controlled in the synchronous reference frame. To properly model the cross-coupling terms in this reference frame, complex vector theory and ...
  • Use of Choquet integrals in multivalued contexts 

    Burusco Juandeaburre, Ana Upna; Alcalde, Cristina (Springer, 2020)   Artículo / Artikulua
    In this work, multivalued contexts are studied, in which the different observations are related to each other. Continuing the studies already carried out in previous works, the use of Choquet integrals can be an adequate ...
  • Effects of the body wearable sensor position on the UWB localization accuracy 

    Otim, Timothy; Díez, Luis E.; Bahillo, Alfonso; López Iturri, Peio Upna; Falcone Lanas, Francisco Javier Upna (MDPI, 2019)   Artículo / Artikulua  OpenAccess
    Over the years, several Ultrawideband (UWB) localization systems have been proposed and evaluated for accurate estimation of the position for pedestrians. However, most of them are evaluated for a particular wearable sensor ...
  • Bitcoin and cybersecurity: temporal dissection of blockchain data to unveil changes in entity behavioral patterns 

    Zola, Francesco; Bruse, Jan Lukas; Eguimendia, María; Galar Idoate, Mikel Upna; Orduna Urrutia, Raúl (MDPI, 2019)   Artículo / Artikulua  OpenAccess
    The Bitcoin network not only is vulnerable to cyber-attacks but currently represents the most frequently used cryptocurrency for concealing illicit activities. Typically, Bitcoin activity is monitored by decreasing anonymity ...
  • Generation of lossy mode resonances with different nanocoatings deposited on coverslips 

    Fuentes Lorenzo, Omar; Goicoechea Fernández, Javier Upna; Corres Sanz, Jesús María Upna; Del Villar, Ignacio Upna; Ozcariz Celaya, Aritz Upna; Matías Maestro, Ignacio Upna (Optical Society of America, 2020)   Artículo / Artikulua  OpenAccess
    The generation of lossy mode resonances (LMRs) with a setup based on lateral incidence of light in coverslips is a simple platform that can be used for sensing. Here the versatility of this platform is proved by studying ...
  • A survey on detection techniques for cryptographic ransomware 

    Berrueta Irigoyen, Eduardo Upna; Morató Osés, Daniel Upna; Magaña Lizarrondo, Eduardo Upna; Izal Azcárate, Mikel Upna (IEEE, 2019)   Artículo / Artikulua  OpenAccess
    Crypto-ransomware is a type of malware that encrypts user files, deletes the original data, and asks for a ransom to recover the hijacked documents. It is a cyber threat that targets both companies and residential users, ...
  • Weak and directional monotonicity of functions on Riesz spaces to fuse uncertain data 

    Sesma Sara, Mikel Upna; Mesiar, Radko; Bustince Sola, Humberto Upna (Elsevier B.V., 2019)   Artículo / Artikulua
    In the theory of aggregation, there is a trend towards the relaxation of the axiom of monotonicity and also towards the extension of the definition to other domains besides real numbers. In this work, we join both approaches ...
  • Accumulating priority queues versus pure priority queues for managing patients in emergency departments 

    Cildoz Esquíroz, Marta Upna; Ibarra, Amaia; Mallor Giménez, Fermín Upna (Elsevier, 2019)   Artículo / Artikulua  OpenAccess
    Improving the quality of healthcare in emergency departments (EDs) is at the forefront of many hospital managers’ efforts, as they strive to plan and implement better patient flow strategies. In this paper, a new approach ...
  • New opportunities for electricity generation in shallow hot dry rock fields: a study of thermoelectric generators with different heat exchangers 

    Catalán Ros, Leyre; Aranguren Garacochea, Patricia Upna; Araiz Vega, Miguel Upna; Pérez Artieda, Miren Gurutze Upna; Astrain Ulibarrena, David Upna (Elsevier, 2019)   Artículo / Artikulua
    Despite being one of the largest renewable sources, geothermal energy is not widely utilized for electricity generation. In order to leverage shallow hot dry rock (HDR) fields, the present paper proposes an alternative to ...
  • A Chebyshev transformer-based microstri-to-groove-gap-waveguide inline transition for MMIC packaging 

    Pérez Escudero, José Manuel Upna; Torres García, Alicia E. Upna; Gonzalo García, Ramón Upna; Ederra Urzainqui, Íñigo Upna (IEEE, 2019)   Artículo / Artikulua  OpenAccess
    The gap waveguide technology has become an alternative to millimeter- and submillimeter-wave electronic circuit packaging thanks to the loss reduction associated with its use. In this paper, a simplified design of an inline ...
  • An evolutionary underbagging approach to tackle the survival prediction of trauma patients: a case study at the Hospital of Navarre 

    Sanz Delgado, José Antonio Upna; Galar Idoate, Mikel Upna; Bustince Sola, Humberto Upna; Belzunegui Otano, Tomás Upna (IEEE, 2019)   Artículo / Artikulua
    Survival prediction systems are used among emergency services at hospitals in order to measure their quality objectively. In order to do so, the estimated mortality rate given by a prediction model is compared with the ...
  • New fractional step Runge-Kutta-Nyström methods up to order three 

    Bujanda Cirauqui, Blanca Upna; Moreta, M. Jesús; Jorge Ulecia, Juan Carlos Upna (Elsevier, 2020)   Artículo / Artikulua
    Fractional Step Runge–Kutta–Nyströ (FSRKN) methods have been revealed to be an excellent option to integrate numerically many multidimensional evolution models governed by second order in time partial differential equations. ...
  • Terahertz sensing based on metasurfaces 

    Beruete Díaz, Miguel Upna; Jáuregui López, Irati Upna (Wiley, 2020)   Artículo / Artikulua
    The terahertz (THz) band has very attractive characteristics for sensing and biosensing applications, due to some interesting features such as being a non-ionizing radiation, very sensitive to weak interactions, thus, ...

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