• Hand-as-a-prop: using the hand as a haptic proxy for manipulation in virtual reality 

      Marichal Baráibar, Sebastián Roberto; Ezcurdia Aguirre, Íñigo Fermín Upna Orcid; Morales González, Rafael; Ortiz Nicolás, Amalia; Marzo Pérez, Asier Upna Orcid; Ardaiz Villanueva, Óscar Upna Orcid (Springer, 2023)   Artículo / Artikulua  OpenAccess
      Haptic feedback can be almost as important as visual information in virtual reality environments. On the one hand, in Active Haptic Feedback, specialized devices such as vibrotactile gloves are employed; however, these ...
    • Health indicator selection for state of health estimation of second-life lithium-ion batteries under extended ageing 

      Braco Sola, Elisa; San Martín Biurrun, Idoia Upna Orcid; Sanchis Gúrpide, Pablo Upna Orcid; Ursúa Rubio, Alfredo Upna Orcid; Stroe, Daniel-Ioan (Elsevier, 2022)   Artículo / Artikulua  OpenAccess
      Nowadays, the economic viability of second-life (SL) Li-ion batteries from electric vehicles is still uncertain. Degradation assessment optimization is key to reduce costs in SL market not only at the repurposing stage, ...
    • Heat pipes thermal performance for a reversible thermoelectric cooler-heat pump for a nZEB 

      Aranguren Garacochea, Patricia Upna Orcid; Díaz de Garayo, Sergio; Martínez Echeverri, Álvaro Upna Orcid; Araiz Vega, Miguel Upna Orcid; Astrain Ulibarrena, David Upna Orcid (Elsevier, 2019)   Artículo / Artikulua  OpenAccess
      The nZEB standards reduce the energy demand of these buildings to a minimum, obtaining this little energy from renewable resources. Taking these aspect into consideration, a thermoelectric cooler-heat pump is proposed to ...
    • Hg2+ optical fiber sensor based on LSPR generated by gold nanoparticles embedded in LBL nano-assembled coatings 

      Martínez Hernández, María Elena Upna Orcid; Goicoechea Fernández, Javier Upna Orcid; Arregui San Martín, Francisco Javier Upna Orcid (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 ...
    • High aperture efficiency wide corrugations bull’s-eye antenna working at 60 GHz 

      Beaskoetxea Gartzia, Unai Upna Orcid; Beruete Díaz, Miguel Upna Orcid (IEEE, 2017)   Artículo / Artikulua  OpenAccess
      A full metallic Bull’s-Eye (BE) antenna operating at 60 GHz is numerically and experimentally analyzed. The antenna presents wide grooves, rather than narrow ones, which support higher order resonances that lead to a large ...
    • High gain/bandwidth off-chip antenna loaded with metamaterial unit-cell impedance matching circuit for sub-terahertz near-field electronic systems 

      Alibakhshikenari, Mohammad; Virdee, Bal S.; Mariyanayagam, Dion; Vadalà, Valeria; Naser-Moghadasi, Mohammad; See, Chan H.; Dayoub, Iyad; Aïssa, Sonia; Livreri, Patrizia; Burokur, Shah Nawaz; Pietrenko-Dabrowska, Anna; Falcone Lanas, Francisco Javier Upna Orcid; Koziel, Slawomir; Limiti, Ernesto (Springer, 2022)   Artículo / Artikulua  OpenAccess
      An innovative of-chip antenna (OCA) is presented that exhibits high gain and efciency performance at the terahertz (THz) band and has a wide operational bandwidth. The proposed OCA is implemented on stacked silicon layers ...
    • High performance antenna-on-chip inspired by SIW and metasurface technologies for THz band operation 

      Alibakhshikenari, Mohammad; Virdee, Bal S.; Rajaguru, Renu Karthick; Iqbal, Amjad; Al-Hasan, Muath; See, Chan H.; Falcone Lanas, Francisco Javier Upna Orcid (Springer, 2023)   Artículo / Artikulua  OpenAccess
      In this paper, a high-performance antenna-on-chip (AoC) is implemented on gallium arsenide (GaAs) wafer based on the substrate integrated waveguide (SIW) and metasurface (MTS) technologies for terahertz band applications. ...
    • High performance fiber laser resonator for dual band (C and L) sensing 

      Sánchez-González, Arturo; Pérez Herrera, Rosa Ana Upna Orcid; Roldán Varona, Pablo; Rodríguez Cobo, Luis; López Higuera, José Miguel; López-Amo Sáinz, Manuel Upna Orcid (IEEE, 2022)   Artículo / Artikulua  OpenAccess
      This work presents an experimental analysis and comparison of the performance of quasi-randomly distributed reflectors inscribed into a single-mode fiber as a sensing mirror both in C- and L-band. Single-wavelength emission ...
    • High sensitive and selective C-reactive protein detection by means of lossy mode resonance based optical fiber devices 

      Zubiate Orzanco, Pablo Upna Orcid; Ruiz Zamarreño, Carlos Upna Orcid; Sánchez Zábal, Pedro Upna Orcid; Matías Maestro, Ignacio Upna Orcid; Arregui San Martín, Francisco Javier Upna Orcid (Elsevier, 2017)   Artículo / Artikulua  OpenAccess
      This work presents the development of high sensitive, selective, fast and reusable C-reactive protein (CRP) aptasensors. This novel approach takes advantage of the utilization of high sensitive refractometers based on ...
    • High sensitivity humidity sensor based on cladding-etched optical fiber and lossy mode resonances 

      Ascorbe Muruzabal, Joaquín Upna Orcid; Corres Sanz, Jesús María Upna Orcid; Matías Maestro, Ignacio Upna Orcid; Arregui San Martín, Francisco Javier Upna Orcid (Elsevier, 2016)   Artículo / Artikulua  OpenAccess
      In this work a high sensitivity optical fiber humidity sensor (OFHS) is presented. The configuration chosen for this purpose is a cladding-etched single mode optical fiber (CE-SMF) coated with a thin film of tin oxide ...
    • High sensitivity lossy-mode resonance refractometer using low refractive index PFA planar waveguide 

      Domínguez Rodríguez, Ismel Upna Orcid; Corres Sanz, Jesús María Upna Orcid; Matías Maestro, Ignacio Upna Orcid; Ascorbe Muruzabal, Joaquín Upna Orcid; Del Villar, Ignacio Upna Orcid (Elsevier, 2023)   Artículo / Artikulua  OpenAccess
      In this work a new strategy to improve the sensitivity of refractometers based on lossy-mode resonances has been proved. The proximity of the PFA (tetrafluoroethylene-perfluoro polymer) substrate refractive index to that ...
    • High-isolation antenna array using SIW and realized with a graphene layer for sub-terahertz wireless applications 

      Alibakhshikenari, Mohammad; Virdee, Bal S.; Salekzamankhani, Shahram; Aïssa, Sonia; See, Chan H.; Soin, Navneet; Fishlock, Sam J.; Althuwayb, Ayman Abdulhadi; Abd-Alhameed, Raed; Huynen, Isabelle; McLaughlin, James A.; Falcone Lanas, Francisco Javier Upna Orcid; Limiti, Ernesto (Nature Research, 2021)   Artículo / Artikulua  OpenAccess
      This paper presents the results of a study on developing an effective technique to increase the performance characteristics of antenna arrays for sub-THz integrated circuit applications. This is essential to compensate the ...
    • Highly sensitive sensor for measuring material thermal expansion using a ring laser 

      Díaz Lucas, Silvia Upna Orcid; Fuentes Lorenzo, Omar Upna; Torres Betancourt, Angie Tatiana; Corres Sanz, Jesús María Upna Orcid; Matías Maestro, Ignacio Upna Orcid (IEEE, 2023)   Artículo / Artikulua  OpenAccess
      A new thermal expansion sensor is presented in this letter. It combines an interferometric fiber sensor and an erbium-doped fiber ring laser as the light source. The sensor consists of a combination of single-mode, ...
    • HIL flight simulator for VTOL-UAV pilot training using X-plane 

      Aláez Gómez, Daniel; Olaz Moratinos, Xabier; Prieto Míguez, Manuel; Porcellinis Pascau, Pablo de; Villadangos Alonso, Jesús Upna Orcid (MDPI, 2022)   Artículo / Artikulua  OpenAccess
      With the increasing popularity of vertical take-off and landing unmanned aerial vehicles (VTOL UAVs), a new problem arises: pilot training. Most conventional pilot training simulators are designed for full-scale aircrafts, ...
    • A historical account of types of fuzzy sets and their relationships 

      Bustince Sola, Humberto Upna Orcid; Barrenechea Tartas, Edurne Upna Orcid; Pagola Barrio, Miguel Upna Orcid; Fernández Fernández, Francisco Javier Upna Orcid; Xu, Zeshui; Bedregal, Benjamin Upna Orcid; Montero, Javier; Hagras, Hani; Herrera, Francisco; Baets, Bernard de (IEEE, 2016)   Artículo / Artikulua  OpenAccess
      In this work we review the definition and basic properties of the different types of fuzzy sets that have appeared up to now in the literature. We also analyze the relationships between them and enumerate some of the ...
    • Hospital preparedness during epidemics using simulation: the case of COVID-19 

      García de Vicuña Bilbao, Daniel Upna Orcid; Esparza, Laida; Mallor Giménez, Fermín Upna Orcid (Springer, 2021)   Artículo / Artikulua  OpenAccess
      This paper presents a discrete event simulation model to support decision-making for the short-term planning of hospital resource needs, especially Intensive Care Unit (ICU) beds, to cope with outbreaks, such as the COVID-19 ...
    • Humidity sensor based on Bragg gratings developed on the end facet of an optical fiber by sputtering of one single material 

      Ascorbe Muruzabal, Joaquín Upna Orcid; Corres Sanz, Jesús María Upna Orcid; Arregui San Martín, Francisco Javier Upna Orcid; Matías Maestro, Ignacio Upna Orcid (MDPI, 2017)   Artículo / Artikulua  OpenAccess
      The refractive index of sputtered indium oxide nanocoatings has been altered just by changing the sputtering parameters, such as pressure. These induced changes have been exploited for the generation of a grating on the ...
    • Hybrid analog-digital SAR instrument with reflector antenna and overlapped subarray feed for earth observation 

      García, Quiterio; Orgaz, Lara; Castillo, Javier del; Toso, Giovanni; Imbembo, Ernesto; Biurrun Quel, Carlos Upna Orcid; Río Bocio, Carlos del Upna Orcid; Memeletzoglou, Nafsika (IEEE, 2021)   Artículo / Artikulua  OpenAccess
      As part of the European Space Agency (ESA) studies of new instrument for Earth observation, the design of a synthetic aperture radar (SAR) architecture based on overlapped array antennas was launched last year. The objective ...
    • Hybrid computational techniques: electromagnetic propagation analysis in complex indoor environments 

      Azpilicueta Fernández de las Heras, Leyre Upna Orcid; Falcone Lanas, Francisco Javier Upna Orcid; Janaswamy, Ramakrishna (IEEE, 2019)   Artículo / Artikulua  OpenAccess
      In this article, we compare deterministic methodologies for characterizing channel behavior in heterogeneous and composite scenarios. These techniques include one that combines a 3D ray launching (RL) approach based on ...
    • Hybrid Raman‑erbium random fiber laser with a half open cavity assisted by artificially controlled backscattering fiber refectors 

      Pérez Herrera, Rosa Ana Upna Orcid; Roldán Varona, Pablo; Sañudo-Lasagabaster Ibáñez, Silvia; Rodríguez Cobo, Luis; López Higuera, José Miguel; López-Amo Sáinz, Manuel Upna Orcid (Springer Nature, 2021)   Artículo / Artikulua  OpenAccess
      A hybrid Raman-erbium random fber laser with a half-open cavity assisted by chirped artifcially controlled backscattering fber refectors is presented. A combination of a 2.4 km-long dispersion compensating fber with two ...

      El Repositorio ha recibido la ayuda de la Fundación Española para la Ciencia y la Tecnología para la realización de actividades en el ámbito del fomento de la investigación científica de excelencia, en la Línea 2. Repositorios institucionales (convocatoria 2020-2021).
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