• 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 ...
    • The hemodynamics of aneurysms treated with flow-diverting stents considering both stent and aneurysm/artery geometries 

      Cillo Velasco, Paulo Roberto; Luciano, Rafaello D.; Kelly, Michael E.; Peeling, Lissa; Malvè, Mauro Upna Orcid (MDPI, 2020)   Artículo / Artikulua  OpenAccess
      Flow diverting stents are deployed to reduce the blood flow into the aneurysm, which would thereby induce thrombosis in the aneurysm sac; the stents prevent its rupture. The present study aimed to examine and quantify the ...
    • Highway paving in the southwestern Amazon alters long-term trends and drivers of regional vegetation dynamics 

      Klarenberg, Geraldine; Muñoz Carpena, Rafael Upna Orcid; Campo-Bescós, Miguel Upna Orcid; Perz, Steve G. (Elsevier, 2018)   Artículo / Artikulua  OpenAccess
      Infrastructure development, specifically road paving, contributes socio-economic benefits to society worldwide. However, detrimental environmental effects of road paving have been documented, most notably increased ...
    • Holographic acoustic tweezers 

      Marzo Pérez, Asier Upna Orcid; Drinkwater, Bruce W. (National Academy of Sciences, 2019)   Artículo / Artikulua  OpenAccess
      Acoustic tweezers use sound radiation forces to manipulate matter without contact. They provide unique characteristics compared with the more established optical tweezers, such as higher trapping forces per unit input power ...
    • Humidity sensor based on silver nanopartlcles embedded in a polymeric coating 

      Rivero Fuente, Pedro J. Upna Orcid; Urrutia Azcona, Aitor Upna Orcid; Goicoechea Fernández, Javier Upna Orcid; Arregui San Martín, Francisco Javier Upna Orcid; Matías Maestro, Ignacio Upna Orcid (Sciendo, 2012)   Artículo / Artikulua  OpenAccess
      In this work, it is presented a novel optical fiber humidity sensor based on silver nanoparticle-loaded polymeric coatings built onto an optical fiber core. The polymeric film was fabricated using the Layer-by-Layer assembly ...
    • Hydrophobic and corrosion behavior of sol-gel hybrid coatings based on the combination of TiO2 NPs and fluorinated chains for aluminum alloys protection 

      Rivero Fuente, Pedro J. Upna Orcid; Maeztu Redin, Juan Deyo; Berlanga Labari, Carlos Upna Orcid; Miguel, Adrián; Palacio, José F.; Rodríguez Trías, Rafael Upna Orcid (MDPI, 2018)   Artículo / Artikulua  OpenAccess
      In this work, layers of a sol-gel hybrid matrix doped with metal oxide nanoparticles (TiO2 NPs) have been deposited on flat samples of AA6061-T6 aluminum alloy using the dip-coating technique, with the aim of obtaining ...
    • Hyperspectral imaging to assess the presence of powdery mildew (Erysiphe necator) in cv. Carignan Noir grapevine bunches 

      Pérez Roncal, Claudia Upna Orcid; López Maestresalas, Ainara Upna Orcid; López Molina, Carlos Upna Orcid; Jarén Ceballos, Carmen Upna Orcid; Urrestarazu Vidart, Jorge Upna Orcid; Santesteban García, Gonzaga Upna Orcid; Arazuri Garín, Silvia Upna Orcid (MDPI, 2020)   Artículo / Artikulua  OpenAccess
      Powdery mildew is a worldwide major fungal disease for grapevine, which adversely affects both crop yield and produce quality. Disease identification is based on visible signs of a pathogen once the plant has already been ...
    • Hyperspectral imaging using notions from type-2 fuzzy sets 

      López Maestresalas, Ainara Upna Orcid; Miguel Turullols, Laura de Upna Orcid; López Molina, Carlos Upna Orcid; Arazuri Garín, Silvia Upna Orcid; Bustince Sola, Humberto Upna Orcid; Jarén Ceballos, Carmen Upna Orcid (Springer, 2019)   Artículo / Artikulua  OpenAccess
      Fuzzy set theory has developed a prolific armamentarium of mathematical tools for each of the topics that has fallen within its scope. One of such topics is data comparison, for which a range of operators has been presented ...
    • Icephobic and anticorrosion coatings deposited by electrospinning on aluminum alloys for aerospace applications 

      Vicente Gómara, Adrián Upna Orcid; Rivero Fuente, Pedro J. Upna Orcid; García, Paloma; Mora, Julio; Carreño, Francisco; Palacio, José F.; Rodríguez Trías, Rafael Upna Orcid (MDPI, 2021)   Artículo / Artikulua  OpenAccess
      Anti-icing or passive strategies have undergone a remarkable growth in importance as a complement for the de-icing approaches or active methods. As a result, many efforts for developing icephobic surfaces have been mostly ...
    • An image-based framework for the analysis of the murine microvasculature: from tissue clarification to computational hemodynamics 

      Mañosas Sánchez, Santiago; Sanz Muñoz, Aritz; Ederra, Cristina; Urbiola, Ainhoa; Rojas De Miguel, Elvira; Ostiz, Ainhoa; Cortés-Domínguez, Iván; Ramírez, Natalia; Ortíz-de-Solórzano, Carlos; Villanueva Larre, Arantxa Upna Orcid; Malvè, Mauro Upna Orcid (MDPI, 2022)   Artículo / Artikulua  OpenAccess
      The blood–brain barrier is a unique physiological structure acting as a filter for every molecule reaching the brain through the blood. For this reason, an effective pharmacologic treatment supplied to a patient by ...
    • Imágenes hiperespectrales para el estudio de la respuesta a los estreses abióticos (deficiencia de riego y abonado) de distintos cultivares de patata 

      López Maestresalas, Ainara Upna Orcid; Pérez Roncal, Claudia Upna Orcid; Jarén Ceballos, Carmen Upna Orcid; Ruiz de Galarreta, José Ignacio Upna; Álvarez, Alba; Barandalla, Leire; Arazuri Garín, Silvia Upna Orcid (Ediciones de Horticultura, 2021)   Artículo / Artikulua  OpenAccess
      El objetivo de este trabajo fue evaluar el potencial de las imágenes hiperespectrales para clasificar tubérculos sometidos a estreses abióticos controlados.
    • Improved adhesion and tribological properties of altin-tisin coatings deposited by dcms and hipims on nitrided tool steels 

      Claver Alba, Adrián Upna Orcid; Randulfe Ceballos, Jesús José; Palacio, José F.; Fernández de Ara, Jonathan; Almandoz Sánchez, Eluxka Upna Orcid; Montalá, Francesc; Colominas, Carles; Cot, Víctor; García Lorente, José Antonio Upna Orcid (MDPI, 2021)   Artículo / Artikulua  OpenAccess
      Hard coatings, such as AlTiN-TiSiN, deposited by Physical Vapor Deposition (PVD) techniques are widely used in industrial applications to protect and increase the lifetime of industrial components, such as cutting tools, ...
    • Improved adhesion of the DCL coating using HiPIMS with positive pulses and plasma immersion pretreatment 

      Gómez Alonso, Íñigo Upna Orcid; Santiago, José A.; Fernández, Iván; Palacio, José F.; Diaz, Cristina; Mändl, Stephan; García Lorente, José Antonio Upna Orcid; Claver Alba, Adrián Upna Orcid (MDPI, 2021)   Artículo / Artikulua  OpenAccess
      Diamond-like carbon (DLC) coatings are used due to their extraordinary tribomechanical properties, great hardness, high elastic modulus, high wear resistance, low friction coefficient and chemical inertness, which provide ...
    • Improvements in the cooling capacity and the COP of a transcritical CO 2 refrigeration plant operating with a thermoelectric subcooling system 

      Astrain Ulibarrena, David Upna Orcid; Merino Vicente, Amaya Upna; Catalán Ros, Leyre Upna Orcid; Aranguren Garacochea, Patricia Upna Orcid; Araiz Vega, Miguel Upna Orcid; Sánchez, Daniel; Cabello, Ramón; Llopis, R. (Elsevier, 2019)   Artículo / Artikulua  OpenAccess
      Restrictive environmental regulations are driving the use of CO 2 as working fluid in commercial vapour compression plants due to its ultra-low global warming potential (GWP 100 = 1) and its natural condition. However, at ...
    • In-situ assessment of the spatial arrangement of step-pool units on eroded rills 

      Govers, G; Campo-Bescós, Miguel; Zubieta Laseca, Elena Upna; Giménez Díaz, Rafael (wiley, 2019)   Artículo / Artikulua
    • Inertia transfer concept based general method for the determination of the base inertial parameters 

      Ros Ganuza, Javier Upna Orcid; Plaza Puértolas, Aitor Upna Orcid; Iriarte Goñi, Xabier Upna Orcid; Aginaga García, Jokin Upna Orcid (Springer, 2015)   Artículo / Artikulua  OpenAccess
      This paper presents a new algorithm to obtain the symbolic expressions of any of the possible base inertial parameter sets of a multibody system. Based on the ¿inertia transfer concept¿, a procedure is proposed to write a ...
    • Influence of friction coefficient on the performance of cold forming tools 

      Barba Areso, Eneko; Salcedo Pérez, Daniel Upna Orcid; Claver Alba, Adrián Upna Orcid; Luri Irigoyen, Rodrigo Upna; García Lorente, José Antonio Upna Orcid (MDPI, 2023)   Artículo / Artikulua  OpenAccess
      The automotive industry has undergone significant advancements and changes over time, resulting in the use of more complex parts in modern vehicles. As a consequence, the parts used in the manufacturing process are subject ...
    • Influence of geometry in the behavior of disc-shaped mechanical energy absorbers for agricultural tractors 

      Latorre Biel, Juan Ignacio; Pérez Ezcurdia, Amaya Upna Orcid; Benito Amurrio, Marta; Alfaro López, José Ramón (MDPI, 2021)   Artículo / Artikulua  OpenAccess
      Disc-shaped mechanical energy absorbers (MEAs), in combination with rollover protection structures (ROPSs), may contribute to the prevention of the infringement of the safety zone and the collapse of the ROPS in case of ...
    • Influence of temperature and aging on the thermal contact resistance in thermoelectric devices 

      Rodríguez García, Antonio Upna Orcid; Pérez Artieda, Miren Gurutze Upna Orcid; Beisti Antoñanzas, Irene Upna Orcid; Astrain Ulibarrena, David Upna Orcid; Martínez Echeverri, Álvaro Upna Orcid (Springer, 2020)   Artículo / Artikulua  OpenAccess
      During thermal design in the first phases development, thermoelectric systems, such as thermoelectric generators, the most important parameter affecting the performance is thermal resistance of the components. This paper ...
    • Instantaneous amplitude and phase signal modeling for harmonic removal in wind turbines 

      Zivanovic, Miroslav Upna Orcid; Plaza Puértolas, Aitor Upna Orcid; Iriarte Goñi, Xabier Upna Orcid; Carlosena García, Alfonso Upna Orcid (Elsevier, 2023)   Artículo / Artikulua  OpenAccess
      We present a novel approach to harmonic disturbance removal in single-channel wind turbine acceleration data by means of time-variant signal modeling. Harmonics are conceived as a set of quasi-stationary sinusoids whose ...

      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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