• UAVradio: Radio link path loss estimation for UAVs 

      Aláez Gómez, Daniel; Celaya Echarri, Mikel; Azpilicueta Fernández de las Heras, Leyre Upna Orcid; Villadangos Alonso, Jesús Upna Orcid (Elsevier, 2024)   Artículo / Artikulua  OpenAccess
      The UAVRadio Python module is a comprehensive toolkit designed to facilitate the analysis and prediction of radio signal path loss in Unmanned Aerial Vehicle (UAV) communication scenarios. The module encompasses a range ...
    • Design and optimization of thermoelectric generators for harnessing geothermal anomalies: a computational model and validation with experimental field results 

      Alegría Cía, Patricia; Catalán Ros, Leyre Upna Orcid; Araiz Vega, Miguel Upna Orcid; Erro Iturralde, Irantzu; Astrain Ulibarrena, David Upna Orcid (Elsevier, 2024)   Artículo / Artikulua  OpenAccess
      Thermoelectric generators have been recently proved to be a feasible alternative to harness hot dry rock fields with very promising results transforming the geothermal heat into electricity. This research deepens in the ...
    • IIoT low-cost Zigbee-based WSN implementation for enhanced production efficiency in a solar protection curtains manufacturing workshop 

      Klaina, Hicham Upna; Picallo Guembe, Imanol Upna Orcid; López Iturri, Peio Upna Orcid; Biurrun, Aitor; Alejos, Ana; Azpilicueta Fernández de las Heras, Leyre Upna Orcid; Socorro Leránoz, Abián Bentor Upna Orcid; Falcone Lanas, Francisco Upna Orcid (MDPI, 2024)   Artículo / Artikulua  OpenAccess
      Nowadays, the Industry 4.0 concept and the Industrial Internet of Things (IIoT) are considered essential for the implementation of automated manufacturing processes across various industrial settings. In this regard, ...
    • From fundamental materials chemistry to sensing applications: unravelling the water adsorption mechanism of a luminescent optical fibre sensor membrane 

      Cruz Quesada, Guillermo Upna Orcid; Rosales Reina, Beatriz; López Torres, Diego Upna Orcid; Reinoso, Santiago Upna Orcid; López Ramón, María Victoria; Arzamendi Manterola, María Cruz Upna Orcid; Elosúa Aguado, César Upna Orcid; Espinal Viguri, Maialen Upna Orcid; Garrido Segovia, Julián José Upna Orcid (Elsevier, 2024)   Artículo / Artikulua  OpenAccess
      This work provides insight into the correlation between the luminescent response of a water-vapour optical fibre sensor and the textural properties of its lanthanide-doped silica coating. To this end, a library of 16 silica ...
    • On the characterization of lithium-ion batteries under overtemperature and overcharge conditions: identification of abuse areas and experimental validation 

      Lalinde Sainz, Iñaki; Berrueta Irigoyen, Alberto Upna Orcid; Arza, Joseba; Sanchis Gúrpide, Pablo Upna Orcid; Ursúa Rubio, Alfredo Upna Orcid (Elsevier, 2024)   Artículo / Artikulua  OpenAccess
      Although lithium-ion batteries have gained considerable popularity in renewable energy and electric vehicle applications, their safety still remains a concern under certain voltage, temperature, or state of charge conditions. ...
    • Generation of lossy mode resonances (LMR) using perovskite nanofilms 

      Armas, Dayron; Matías Maestro, Ignacio Upna Orcid; López-González, M. Carmen; Ruiz Zamarreño, Carlos Upna Orcid; Zubiate Orzanco, Pablo Upna Orcid; Del Villar, Ignacio Upna Orcid; Romero, Beatriz (Chinese Academy of Sciences, 2024)   Artículo / Artikulua  OpenAccess
      The results presented here show for the first time the experimental demonstration of the fabrication of lossy mode resonance (LMR) devices based on perovskite coatings deposited on planar waveguides. Perovskite thin films ...
    • Monthly intercepted photosynthetically active radiation estimation based on the Beer-Lambert's law across the cereal crops of Castilla y León (Spain) 

      Garrachón-Gómez, Elena; García Ruiz, Ignacio Upna Orcid; García-Rodríguez, Ana; García-Rodríguez, Sol; Alonso-Tristán, Cristina (Elsevier, 2024)   Artículo / Artikulua  OpenAccess
      Agriculture is by far the most important economic activity in the Spanish autonomous region of Castilla y León. Numerous factors influence crop development but one of the most related variables to the photosynthetic process ...
    • A biological insight of hops wastes vermicomposting by Eisenia Andrei 

      González Moreno, Miguel Ángel Upna Orcid; García Gracianteparaluceta, Beñat; Marcelino Sádaba, Sara Upna Orcid; Prieto Cobo, Eduardo Upna Orcid; Seco Meneses, Andrés Upna Orcid (Springer, 2024)   Artículo / Artikulua  OpenAccess
      The study was conducted to assess the feasibility of using Eisenia andrei earthworms for vermicomposting hop remains from a lupulin extraction enterprises for the brewing industry. Vermicomposting process was conducted ...
    • Comment on 'Effects of Vivifrail multicomponent intervention on functional capacity' by Casas-Herrero et al.-The authors reply. 

      Sanchez Sanchez, Juan luis; Izquierdo Redín, Mikel; López Saez de Asteasu, Mikel; Antón Rodrigo, Iván; Galbete Jiménez, Arkaitz Upna Orcid; Álvarez Bustos, Alejandro; Casas Herrero, Álvaro Upna (Wiley, 2024)   Artículo / Artikulua  OpenAccess
      In this response letter, we would like to clarify some aspects related to the methodology and inferences derived from our work entitled 'Effects of Vivifrail multicomponent intervention on functional capacity', which was ...
    • Photoisomerization-induced LMR shift for UV radiation detection 

      Gallego Martínez, Elieser Ernesto; Ruiz Zamarreño, Carlos Upna Orcid; Matías Maestro, Ignacio Upna Orcid (Elsevier, 2024)   Artículo / Artikulua
      This work presents an optical sensor for ultraviolet radiation (UV) detection, based on the combined effects of Lossy Mode Resonance (LMR) in the mid infrared (MIR) spectral region and the photoisomerization of a polymeric ...
    • Estimation of patient flow in hospitals using up-to-date data: application to bed demand prediction during pandemic waves 

      García de Vicuña Bilbao, Daniel; López-Cheda, Ana; Jácome, María Amalia; Mallor Giménez, Fermín Upna Orcid (Public Library of Science, 2023)   Artículo / Artikulua  OpenAccess
      Hospital bed demand forecast is a first-order concern for public health action to avoid healthcare systems to be overwhelmed. Predictions are usually performed by estimating patients flow, that is, lengths of stay and ...
    • All-fiber ellipsometer for nanoscale dielectric coatings 

      Imas González, José Javier Upna Orcid; Matías Maestro, Ignacio Upna Orcid; Del Villar, Ignacio Upna Orcid; Ozcariz Celaya, Aritz Upna Orcid; Ruiz Zamarreño, Carlos Upna Orcid; Albert, Jacques (Chinese Academy of Sciences, 2023)   Artículo / Artikulua  OpenAccess
      Multiple mode resonance shifts in tilted fiber Bragg gratings (TFBGs) are used to simultaneously measure the thickness and the refractive index of TiO2 thin films formed by Atomic Layer Deposition (ALD) on optical fibers. ...
    • Planar-waveguide-lmr-based sensors: engineering the depth of characteristic curves 

      Shrivastav, Anand M.; Del Villar, Ignacio Upna Orcid; Ascorbe Muruzabal, Joaquín Upna Orcid; Corres Sanz, Jesús María Upna Orcid; Matías Maestro, Ignacio Upna Orcid (IEEE, 2023)   Artículo / Artikulua  OpenAccess
      Lossy mode resonance (LMR)-based sensors have been proven as one of the exponentially growing research fields since the last decade. These sensors have demonstrated their capabilities in the detection of several physical, ...
    • UV light detection with side polished CYTOP fiber 

      Ayechu Abendaño, Ada; Santano, Desiree Upna Orcid; López Vargas, Juan David; Matías Maestro, Ignacio Upna Orcid; Del Villar, Ignacio Upna Orcid (IEEE, 2023)   Artículo / Artikulua  OpenAccess
      Cyclic transparent optical polymer (CYTOP) fiber, used mainly in strain detection and refractive index characterization of liquids, can be polished for the detection of ultraviolet (UV) light radiation. The study investigates ...
    • LMR-based optical sensor for ethylene detection at visible and mid-infrared regions 

      Gallego Martínez, Elieser Ernesto; Hualde Otamendi, Mikel; Ruiz Zamarreño, Carlos Upna Orcid; Matías Maestro, Ignacio Upna Orcid (IEEE, 2023)   Artículo / Artikulua  OpenAccess
      Ethylene monitoring has long been a method of controlling the ripening of climacteric fruits, but it turns out that this gas is an important biomarker in biomedical applications. This work presents an optical gas sensor ...
    • Quantum antireflection temporal coatings: quantum state frequency shifting and inhibited thermal noise amplification 

      Liberal Olleta, Íñigo Upna Orcid; Vázquez Lozano, Juan Enrique; Pacheco-Peña, Víctor Upna Orcid (wiley, 2023)   Artículo / Artikulua  OpenAccess
      The quantum optical response of antireflection temporal coatings (ATCs), that is, matching temporal layers that suppress the generation of backward waves in temporal boundaries, is investigated. The results reveal that ...
    • Ammonia gas optical sensor based on lossy mode resonances 

      Armas, Dayron; Zubiate Orzanco, Pablo Upna Orcid; Ruiz Zamarreño, Carlos Upna Orcid; Matías Maestro, Ignacio Upna Orcid (IEEE, 2023)   Artículo / Artikulua  OpenAccess
      This letter presents the fabrication and characterization of an ammonia (NH 3) gas optical sensor based on lossy mode resonances (LMRs). A chromium (III) oxide (Cr 2 O 3) thin film deposited onto a planar waveguide was ...
    • Robots for elderly care: review, multi-criteria optimization model and qualitative case study 

      Sawik, Bartosz; Tobis, Sławomir; Baum, Ewa; Suwalska, Aleksandra; Kropińska, Sylwia; Stachnik, Katarzyna; Pérez-Bernabeu, Elena; Cildoz Esquíroz, Marta Upna Orcid; Agustín Martín, Alba; Wieczorowska-Tobis, Katarzyna. (MDPI, 2023)   Artículo / Artikulua  OpenAccess
      This paper focuses on three areas: the first is a review of current knowledge about social and service robots for elderly care. The second is an optimization conceptual model aimed at maximizing the efficiency of assigning ...
    • A multi-splitting method to solve 2D parabolic reaction-diffusion singularly perturbed systems 

      Clavero, Carmelo; Jorge Ulecia, Juan Carlos Upna Orcid (Elsevier, 2023)   Artículo / Artikulua
      In this paper we design and analyze a numerical method to solve a type of reaction-diffusion 2D parabolic singularly perturbed systems. The method combines the central finite difference scheme on an appropriate piecewise ...
    • Thermoelectric generator for high temperature geothermal anomalies: experimental development and field operation 

      Alegría Cía, Patricia; Catalán Ros, Leyre Upna Orcid; Araiz Vega, Miguel Upna Orcid; Casi Satrústegui, Álvaro Upna Orcid; Astrain Ulibarrena, David Upna Orcid (Elsevier, 2023)   Artículo / Artikulua  OpenAccess
      In the current climate and energy context, it is important to develop technologies that permit increase the use of renewable sources such as geothermal energy. Enhancing the use of this renewable source is particularly ...

      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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