Browsing by UPNA Author "Gómez Polo, Cristina"

Now showing items 1-20 of 26

    • A combination of a vibrational electromagnetic energy harvester and a giant magnetoimpedance (GMI) sensor 

      Beato López, Juan Jesús Upna Orcid; Royo, Isaac Upna Orcid; Algueta-Miguel, Jose M. Upna Orcid; Gómez Polo, Cristina Upna Orcid (MDPI, 2020)   Artículo / Artikulua  OpenAccess
      An energy harvesting device combined with a giant magnetoimpedance (GMI) sensor is presented to analyze low frequency vibrating systems. An electromagnetic harvester based on magnetic levitation is proposed for the electric ...

    • A comprehensive analysis of the absorption spectrum of conducting ferromagnetic wires 

      Liberal Olleta, Íñigo Upna Orcid; Ederra Urzainqui, Íñigo Upna Orcid; Gómez Polo, Cristina Upna Orcid; Labrador Otamendi, Alberto; Pérez de Landazábal Berganzo, José Ignacio Upna Orcid; Gonzalo García, Ramón Upna Orcid (IEEE, 2012)   Artículo / Artikulua  OpenAccess
      A detailed analysis of the absorption spectrum of conductive ferromagnetic wires is presented. The absorption spectrum is computed from the solution to the scattering problem, and circuit models are formulated to clarify ...

    • Contactless magnetic nanoparticle detection platform based on non-linear GMI effect 

      Beato López, Juan Jesús Upna Orcid; Algueta-Miguel, Jose M. Upna Orcid; Gómez Polo, Cristina Upna Orcid (Elsevier, 2021)   Artículo / Artikulua  OpenAccess
      A detection platform based on non-linear Giant Magnetoimpedance Effect was analyzed for the design of a contactless and low-cost detector of magnetic nanoparticles. The sensor consists of two soft magnetic amorphous wires ...

    • Desarrollo de sensores basados en el efecto de magnetoimpedancia gigante empleando materiales magnéticos amorfos obtenidos mediante técnicas de enfriamiento ultrarrápido 

      Beato López, Juan Jesús Upna Orcid (2018)   Tesis doctoral / Doktoretza tesia  OpenAccess
      El presente trabajo tiene un claro carácter práctico y aplicado. El principal objetivo es el desarrollo de sensores basados en el efecto de magnetoimpedancia gigante (o efecto GMI) empleando materiales magnéticos amorfos ...

    • Effect of Cu substitution on the magnetic and magnetic induction heating response of CdFe₂O₄ spinel ferrite 

      Ghasemi, R.; Echeverría Morrás, Jesús Upna Orcid; Pérez de Landazábal Berganzo, José Ignacio Upna Orcid; Beato López, Juan Jesús Upna Orcid; Naseri, M.; Gómez Polo, Cristina Upna Orcid (Elsevier, 2020)   Artículo / Artikulua  OpenAccess
      In this work, a comparative study of the effect of Cu on the structural, magnetic and magnetic induction heating response in CdFe2O4 spinel is presented. The ceramic nanoparticles (Cu1−xCdxFe2O4; 0 ≤ x ≤ 1) were synthesized ...

    • Fe-C nanoparticles obtained from thermal decomposition employing sugars as reducing agents 

      Cervera Gabalda, Laura María Upna; Pérez de Landazábal Berganzo, José Ignacio Upna Orcid; Garayo Urabayen, Eneko Upna Orcid; Monteserín, María; Larumbe Abuin, Silvia Upna; Martín, F.; Gómez Polo, Cristina Upna Orcid (Elsevier, 2020)   Artículo / Artikulua  OpenAccess
      The aim of the work is to present a comparative analysis (structural and magnetic) of Fe-C nanocomposites obtained by the thermal decomposition of sugars (fructose, glucose and sucrose) employing FeCl3 as Fe3+ precursor. ...

    • Giant direct and inverse magnetocaloric effect linked to the same forward martensitic transformation 

      Pérez de Landazábal Berganzo, José Ignacio Upna Orcid; Recarte Callado, Vicente Upna Orcid; Sánchez-Alarcos Gómez, Vicente Upna Orcid; Beato López, Juan Jesús Upna Orcid; Rodríguez Velamazán, José Alberto; Sánchez Marcos, J.; Gómez Polo, Cristina Upna Orcid; Cesari, Eduard (Springer Nature, 2017)   Artículo / Artikulua  OpenAccess
      Metamagnetic shape memory alloys have aroused considerable attraction as potential magnetic refrigerants due to the large inverse magnetocaloric effect associated to the magnetic-field-induction of a reverse martensitic ...

    • Giant stress impedance magnetoelastic sensors employing soft magnetic amorphous ribbons 

      Beato López, Juan Jesús Upna Orcid; Urdaniz Villanueva, Juan Garikoitz; Pérez de Landazábal Berganzo, José Ignacio Upna Orcid; Gómez Polo, Cristina Upna Orcid (MDPI, 2020)   Artículo / Artikulua  OpenAccess
      Soft magnetic amorphous alloys obtained via rapid quenching techniques are widely employed in different technological fields such as magnetic field detection, bio labeling, non-contact positioning, etc. Among them, ...

    • Improved photocatalytic and antibacterial performance of Cr doped TiO2 nanoparticles 

      Gómez Polo, Cristina Upna Orcid; Larumbe Abuin, Silvia Upna; Gil Bravo, Antonio Upna Orcid; Muñoz, Delia Upna Orcid; Rodríguez Fernández, L.; Fernández Barquín, Luis; García-Prieto, Ana; Fernández-Gubieda, María Luisa; Muela, Alicia (Elsevier, 2021)   Artículo / Artikulua  OpenAccess
      The effect of Cr and N doping in the adsorption capacity, photocatalytic properties and antibacterial response of TiO2 anatase nanoparticles is analyzed. The nanoparticles (N-TiO2, Cr-TiO2 and Cr/N-TiO2) were prepared by ...

    • Influence of the geometry on the performance of GMI in meander configuration 

      Beato López, Juan Jesús Upna Orcid; Lete, N.; García-Arribas, A.; Gómez Polo, Cristina Upna Orcid (Elsevier, 2022)   Artículo / Artikulua
      The effect of geometry on Giant Magnetoimpedance effect (GMI) in a meander structure composed of three amorphous magnetic ribbons ((Co0.94 Fe0.06)72,5 Si12.5 B15; 20 mm length) connected electrically in series is analyzed. ...

    • Magnetic binary encoding system based on 3D printing and GMI detection prototype 

      Beato López, Juan Jesús Upna Orcid; Algueta-Miguel, Jose M. Upna Orcid; Galarreta Rodríguez, Itziar; López Ortega, Alberto Upna Orcid; Garayo Urabayen, Eneko Upna Orcid; Gómez Polo, Cristina Upna Orcid; Aresti Bartolomé, Maite; Soria Picón, Eneko; Pérez de Landazábal Berganzo, José Ignacio Upna Orcid (Elsevier, 2022)   Artículo / Artikulua  OpenAccess
      In this work, the feasibility of a magnetic binary encoding system using 3D printing technology is analyzed. The study has a double interest, that is, the possibility of printing a 3D piece that contains the codified ...

    • Magnetic carbon Fe3O4 nanocomposites synthesized via magnetic induction heating 

      Cervera Gabalda, Laura María Upna; Gómez Polo, Cristina Upna Orcid (Springer Nature, 2023)   Artículo / Artikulua  OpenAccess
      Magnetic Induction Heating (MIH) of magnetite nanoparticles is employed as a novel synthesis procedure of carbon based magnetic nanocomposites. Magnetic nanoparticles (Fe3O4) and fructose (1:2 weight ratio) were mechanically ...

    • Magnetic Fe/Fe3C@C nanoadsorbents for efficient Cr (VI) removal 

      Cervera Gabalda, Laura María Upna; Gómez Polo, Cristina Upna Orcid (MDPI, 2022)   Artículo / Artikulua  OpenAccess
      Magnetic carbon nanocomposites (α-Fe/Fe3C@C) synthesized employing fructose and Fe3O4 magnetite nanoparticles as the carbon and iron precursors, respectively, are analyzed and applied for the removal of Cr (VI). Initial ...

    • Magnetic transition in nanocrystalline soft magnetic alloys analyzed via ac inductive techniques 

      Gómez Polo, Cristina Upna Orcid; Pérez de Landazábal Berganzo, José Ignacio Upna Orcid; Recarte Callado, Vicente Upna Orcid; Vázquez, M.; Hernando, A. (American Physical Society, 2004)   Artículo / Artikulua  OpenAccess
      The magnetic transition in a FeSiBCuNb nanocrystalline alloy, associated with the decoupling of ferromagnetic crystallites around the Curie point of the residual amorphous matrix, is analyzed in this work through the ...

    • Magnetically activated 3D printable polylactic acid/polycaprolactone/magnetite composites for magnetic induction heating generation 

      Galarreta Rodríguez, Itziar; López Ortega, Alberto Upna Orcid; Garayo Urabayen, Eneko Upna Orcid; Beato López, Juan Jesús Upna Orcid; La Roca, Paulo Matías Upna; Sánchez-Alarcos Gómez, Vicente Upna Orcid; Recarte Callado, Vicente Upna Orcid; Gómez Polo, Cristina Upna Orcid; Pérez de Landazábal Berganzo, José Ignacio Upna Orcid (Springer, 2023)   Artículo / Artikulua  OpenAccess
      Additive manufacturing technology has attracted the attention of industrial and technological sectors due to the versatility of the design and the easy manufacture of structural and functional elements based on composite ...

    • Martensitic transformation controlled by electromagnetic field: from experimental evidence to wireless actuator applications 

      Garayo Urabayen, Eneko Upna Orcid; La Roca, Paulo Matías Upna; Gómez Polo, Cristina Upna Orcid; Sánchez-Alarcos Gómez, Vicente Upna Orcid; Recarte Callado, Vicente Upna Orcid; Pérez de Landazábal Berganzo, José Ignacio Upna Orcid (Elsevier, 2022)   Artículo / Artikulua  OpenAccess
      Mechanical actuators based on shape memory alloys (SMA) are becoming a key component in the development of novel soft robotic applications and surgically implantable devices. Their working principle relies in the temperature ...

    • Micrometric non-contact position magnetoimpedance sensor 

      Beato López, Juan Jesús Upna Orcid; Royo, Isaac Upna Orcid; Gómez Polo, Cristina Upna Orcid (Elsevier, 2018)   Artículo / Artikulua  OpenAccess
      In this work a sensitive micrometric non-contact position sensor based on the Giant MagnetoImpedance effect (GMI) is analyzed. A nearly zero magnetostrictive CoFeSiBCr wire was employed as sensor nucleus. The sensing ...

    • Monitoring structural transformations in metamagnetic shape memory alloys by non-contact GMI technology 

      Beato López, Juan Jesús Upna Orcid; La Roca, Paulo Matías Upna; Algueta-Miguel, Jose M. Upna Orcid; Garayo Urabayen, Eneko Upna Orcid; Sánchez-Alarcos Gómez, Vicente Upna Orcid; Recarte Callado, Vicente Upna Orcid; Gómez Polo, Cristina Upna Orcid; Pérez de Landazábal Berganzo, José Ignacio Upna Orcid (IOP Publishing, 2023)   Artículo / Artikulua
      Different applications based on metamagnetic shape memory alloy (MSMA) require monitoring the evolution of the martensitic transformation (MT) to optimize the actuation mechanism. To avoid interaction with the active ...

    • Non-linear GMI decoding in 3D printed magnetic encoded systems 

      Beato López, Juan Jesús Upna Orcid; Algueta-Miguel, Jose M. Upna Orcid; Galarreta Rodríguez, Itziar; Garayo Urabayen, Eneko Upna Orcid; López Ortega, Alberto Upna Orcid; Gómez Polo, Cristina Upna Orcid; Pérez de Landazábal Berganzo, José Ignacio Upna Orcid (Elsevier, 2023)   Artículo / Artikulua  OpenAccess
      The nonlinear giant magnetoimpedance (GMI) effect was explored as a highly sensitive sensing technology in 3D-printed magnetic encoded systems. Magnetic nanoparticles with low (magnetite, Fe3O4) and high (Co ferrite, ...

    • Síntesis, caracterización y aplicaciones de nanoestructuras magnéticas basadas en óxidos de metales de transición 

      Larumbe Abuin, Silvia Upna (2014)   Tesis doctoral / Doktoretza tesia  OpenAccess
      Como objetivo principal de esta tesis se plantea la preparación de sistemas híbridos constituídos por nanoestructuras del tipo NM@SiO2@X-TiO2 (NM: núcleo magnético; X: elemento dopante) con actividad fotocatalítica en el ...
      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).
      Logo MinisterioLogo Fecyt

      Contact Us | Send Feedback