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Mostrando ítems 120-139 de 229

    • 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 Ángel; Zubieta Laseca, Elena Upna; Giménez Díaz, Rafael (wiley, 2019)   Artículo / Artikulua

    • 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 ...

    • Intelligent and adaptive system for welding process automation in T-shaped joints 

      Aldalur, Eider; Suárez, Alfredo; Curiel Braco, David; Veiga Suárez, Fernando Upna Orcid; Villanueva Roldán, Pedro Upna Orcid (MDPI, 2023)   Artículo / Artikulua  OpenAccess
      The automation of welding processes requires the use of automated systems and equipment, in many cases industrial robotic systems, to carry out welding processes that previously required human intervention. Automation in ...

    • Interval subsethood measures with respect to uncertainty for the interval-valued fuzzy setting 

      Pekala, Barbara; Bentkowska, Urszula; Sesma Sara, Mikel Upna Orcid; Fernández Fernández, Francisco Javier Upna Orcid; Lafuente López, Julio Upna Orcid; Altalhi, A. H.; Knap, Maksymilian; Bustince Sola, Humberto Upna Orcid; Pintor Borobia, Jesús María Upna Orcid (Atlantis Press, 2020)   Artículo / Artikulua  OpenAccess
      In this paper, the problem of measuring the degree of subsethood in the interval-valued fuzzy setting is addressed. Taking into account the widths of the intervals, two types of interval subsethood measures are proposed. ...

    • Irrigation implementation promotes increases in salinity and nitrate concentration in the lower reaches of the Cidacos River (Navarre, Spain) 

      Merchán Elena, Daniel Upna; Sanz, L.; Alfaro, A.; Pérez, I.; Goñi Garatea, Mikel Upna Orcid; Solsona, F.; Hernández García, Iker Upna Orcid; Pérez, C.; Casalí Sarasíbar, Javier Upna Orcid (Elsevier, 2020)   Artículo / Artikulua  OpenAccess
      The shift from rainfed to irrigated agriculture is associated with a change in the fertilization rates due to increases in expected production and the fact of growing more N demanding crops. In addition, the circulation ...

    • The law of O-conditionality for fuzzy implications constructed from overlap and grouping functions 

      Pereira Dimuro, Graçaliz Upna Orcid; Bedregal, Benjamin Upna Orcid; Fernández Fernández, Francisco Javier Upna Orcid; Sesma Sara, Mikel Upna Orcid; Pintor Borobia, Jesús María Upna Orcid; Bustince Sola, Humberto Upna Orcid (Elsevier, 2019)   Artículo / Artikulua  OpenAccess
      Overlap and grouping functions are special kinds of non necessarily associative aggregation operators proposed for many applications, mainly when the associativity property is not strongly required. The classes of overlap ...

    • Layer-by-layer nano-assembly: a powerful tool for optical fiber sensing applications 

      Rivero Fuente, Pedro J. Upna Orcid; Goicoechea Fernández, Javier Upna Orcid; Arregui San Martín, Francisco Javier Upna Orcid (MDPI, 2019)   Artículo / Artikulua  OpenAccess
      The ability to tune the composition of nanostructured thin films is a hot topic for the design of functional coatings with advanced properties for sensing applications. The control of the structure at the nanoscale level ...

    • Lidar-based feedforward control design methodology for tower load alleviation in wind turbines 

      Miquélez Madariaga, Irene; Lizárraga Zubeldia, Idoia; Díaz de Corcuera Martínez, Asier; Elso Torralba, Jorge Upna Orcid (John Wiley & Sons, 2022)   Artículo / Artikulua  OpenAccess
      Minimising tower loads is a key issue for the optimal operation and cost-effective design of wind turbines. Light detection and ranging (LIDAR) technologies enable the measurement of free wind ahead of the rotor and the ...

    • Linear uncertain modelling of LIDAR systems for robust wind turbine control design 

      Miquélez Madariaga, Irene; Lizarraga Zubeldia, Idoia; Díaz de Corcuera Martínez, Asier; Elso Torralba, Jorge Upna Orcid (Elsevier, 2023)   Artículo / Artikulua  OpenAccess
      Light detection and ranging (LIDAR) sensors measure the free wind ahead of the rotor, enabling the use of new feedforward control strategies. However, there exist some sources of error inherent to the measuring process that ...

    • Low energy spent coffee grounds briquetting with organic binders for biomass fuel manufacturing 

      Espuelas Zuazu, Sandra Upna Orcid; Marcelino Sádaba, Sara Upna Orcid; Echeverría, Angel María Upna Orcid; Castillo, Jesús María del Upna Orcid; Seco Meneses, Andrés Upna Orcid (Elsevier, 2020)   Artículo / Artikulua  OpenAccess
      This paper analyzes the ability of the spent coffee grounds (SCG) for briquettes production with xanthan and guar gums as binders. Briquettes were manufactured at room temperature, at 15%, 20%, 25% and 30% of moisture, at ...

    • Luminance calibration of a full sky HDR imaging system using sky scanner measurements 

      García Ruiz, Ignacio Upna Orcid; Sáenz Gamasa, Carlos Upna Orcid; Hernández Salueña, Begoña Upna Orcid; García Santos, Rafael; Torres Escribano, José Luis Upna Orcid (Solar Energy Society, 2022)   Artículo / Artikulua  OpenAccess
      A full sky High Dynamic Range imaging system, based on a Single-Lens Reflex camera with a fisheye lens, has been constructed and calibrated with a sky scanner luminance meter. The method considers the geometrical, spectral, ...
      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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