Listar Artículos de revista ISC - ISC aldizkari artikuluak por título

Mostrando ítems 575-594 de 610

    • Twin lossy mode resonance on a single D-shaped optical fiber 

      Imas González, José Javier Upna Orcid; Ruiz Zamarreño, Carlos Upna Orcid; Del Villar, Ignacio Upna Orcid; Pérez Escudero, José Manuel Upna Orcid; Matías Maestro, Ignacio Upna Orcid (Optica, 2021)   Artículo / Artikulua  OpenAccess
      This letter presents the fabrication of dual lossy mode resonance (LMR) refractometers based on titanium dioxide (TiO2) and tin oxide (SnO2) thin films deposited on a single side-polished D-shaped optical fiber. For the ...

    • Two-stage OTA with all subthreshold MOSFETs and optimum GBW to DC-current ratio 

      Beloso Legarra, Javier Upna Orcid; Grasso, A.; López Martín, Antonio Upna Orcid; Palumbo, Gaetano; Pennisi, Salvatore (IEEE, 2022)   Artículo / Artikulua  OpenAccess
      An approach for the design of two-stage classAB OTAs with sub-1µA current consumption is proposed and demonstrated. The approach employs MOS transistors operating in subthreshold and allows maximum gain-bandwidth product ...

    • Two-wavelength phase-sensitive OTDR sensor using perfect periodic correlation codes for measurement range enhancement, noise reduction and fading compensation 

      Sagüés García, Mikel Upna Orcid; Piñeiro Ben, Enrique; Cerri, Enis; Minardo, Aldo; Eyal, Avishay; Loayssa Lara, Alayn (Optica, 2021)   Artículo / Artikulua  OpenAccess
      We demonstrate a two-wavelength differential-phase-measuring OTDR sensor that uses perfect periodic correlation phase codes to enhance the measurement performance. The two-wavelength technique extends the measurement range ...

    • 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 ...

    • Ultra-long (290 km) remote interrogation sensor network based on a random distributed feedback fiber laser 

      Miguel Soto, Verónica de Upna Orcid; Leandro González, Daniel Upna Orcid; López-Amo Sáinz, Manuel Upna Orcid (Optical Society of America, 2018)   Artículo / Artikulua  OpenAccess
      In this work, an interferometric sensor has been interrogated 290 km away from the monitoring station, reaching the longest distance in fiber optic sensing up to date. This has been attained by employing a double-pumped ...

    • Ultra-low frequency multidirectional harvester for wind turbines 

      Castellano Aldave, Jesús Carlos; Carlosena García, Alfonso Upna Orcid; Iriarte Goñi, Xabier Upna Orcid; Plaza Puértolas, Aitor Upna Orcid (Elsevier, 2023)   Artículo / Artikulua  OpenAccess
      In this paper we propose, and demonstrate through a prototype, a completely novel device able to harvest mechanical energy from the multidirectional vibrations in a wind turbine, and convert it into electrical, to power ...

    • Ultrahigh refractive index sensitivity with lossy mode resonance in a side-polished low-index polymer optical fiber 

      López Vargas, Juan David; Matías Maestro, Ignacio Upna Orcid; Werneck, Marcelo M.; Allil, Regina C.; Del Villar, Ignacio Upna Orcid (IEEE, 2024)   Artículo / Artikulua  OpenAccess
      This work presents a theoretical–experimental study of a refractive index (RI) sensor based on lossy mode resonances (LMRs) generated with a side-polished low-index polymer optical fiber. The theoretical part involves ...

    • Ultrahigh sensitive detection of tau protein as Alzheimer's biomarker via microfluidics and nanofunctionalized optical fiber sensors 

      Chiavaioli, Francesco; Santano, Desiree Upna Orcid; Del Villar, Ignacio Upna Orcid; Socorro Leránoz, Abián Bentor Upna Orcid; Zhang, Xuejun; Li, Kaiwei; Santamaría, Enrique; Fernández Irigoyen, Joaquín Upna Orcid; Baldini, Francesco; Van den Hove, Daniel L. A.; Shi, Lei; Bi, Wei; Guo, Tuan; Giannetti, Ambra; Matías Maestro, Ignacio Upna Orcid (Wiley, 2022)   Artículo / Artikulua  OpenAccess
      Alzheimer’s disease (AD) is one of the most common neurodegenerative illnesses displaying the highest death rate in the elderly. However, the existing AD diagnostic system remains elusive due to lack of a technology that ...

    • Ultrathin and high-efficiency Pancharatnam-Berry phase metalens for millimeter waves 

      Moreno-Peñarrubia, Alexia; Teniente Vallinas, Jorge Upna Orcid; Kuznetsov, Sergei A.; Orazbayev, Bakhtiyar Upna Orcid; Beruete Díaz, Miguel Upna Orcid (AIP Publishing, 2021)   Artículo / Artikulua  OpenAccess
      Applying the Pancharatnam–Berry (PB) principle to half-wave plate (HWP) metasurfaces allows the manipulation of wavefronts along with the conversion of the handedness of circularly polarized incident waves by simply rotating ...

    • Ultrathin sub-terahertz half-wave plate with high conversion efficiency based on zigzag metasurface 

      Moreno-Peñarrubia, Alexia; Kuznetsov, Sergei A.; Beruete Díaz, Miguel Upna Orcid (IEEE, 2020)   Artículo / Artikulua  OpenAccess
      In this communication, an ultrathin transmissive half-wave plate (HWP) based on a bi-layered zigzag metasurface operating at the lower frequency edge of the terahertz (THz) spectrum is numerically and experimentally studied. ...

    • Ultraviolet erythemal irradiance (UVER) under different sky conditions in Burgos, Spain: multilinear regression and artificial neural network models 

      García-Rodríguez, Sol; García-Rodríguez, Ana; Granados-López, D.; García Ruiz, Ignacio Upna Orcid; Alonso-Tristán, Cristina (MDPI, 2023)   Artículo / Artikulua  OpenAccess
      Different strategies for modeling Global Horizontal UltraViolet Erythemal irradiance (GHUVE) based on meteorological parameters measured in Burgos (Spain) have been developed. The experimental campaign ran from September ...

    • Unbalanced interval-valued OWA operators 

      Miguel Turullols, Laura de Upna Orcid; Bustince Sola, Humberto Upna Orcid; Barrenechea Tartas, Edurne Upna Orcid; Pagola Barrio, Miguel Upna Orcid; Fernández Fernández, Francisco Javier Upna Orcid (Springer Berlin Heidelberg, 2016)   Artículo / Artikulua  OpenAccess
      In this work, we introduce a new class of functions defned on the interval-valued setting. These functions extend classical OWA operators but allow for diferent weighting vectors to handle the lower bounds and the ...

    • A unified analytical disk cam profile generation methodology using the Instantaneous Center of Rotation for educational purpose 

      Iriarte Goñi, Xabier Upna Orcid; Bacaicoa Díaz, Julen Upna Orcid; Plaza Puértolas, Aitor Upna Orcid; Aginaga García, Jokin Upna Orcid (Elsevier, 2024)   Artículo / Artikulua  OpenAccess
      Cam design is a fundamental part of the Mechanism and Machine Theory (MMT) and is included in the vast majority of MMT books. Cam profile design is usually determined with graphical and analytical methods. Graphical methods ...

    • A unified view of different axiomatic measures defined on L-fuzzy sets 

      Couso, Inés; Bustince Sola, Humberto Upna Orcid; Sánchez, Luciano (IEEE, 2019)   Artículo / Artikulua  OpenAccess
      The recent literature contains a multitude of extensions of (axiomatic) notions from the context of ordinary fuzzy sets to more general contexts. Using the language of lattices, we provide a general and compact formulation ...

    • A uniformly convergent scheme to solve two-dimensional parabolic singularly perturbed systems of reaction-diffusion type with multiple diffusion parameters 

      Clavero, Carmelo; Jorge Ulecia, Juan Carlos Upna Orcid (John Wiley & Sons Ltd, 2021)   Artículo / Artikulua
      In this work, we deal with solving two-dimensional parabolic singularly perturbed systems of reaction-diffusion type where the diffusion parameters at each equation of the system can be small and of different scale. In ...

    • Unsupervised fuzzy measure learning for classifier ensembles from coalitions performance 

      Uriz Martín, Mikel Xabier Upna Orcid; Paternain Dallo, Daniel Upna Orcid; Domínguez Catena, Iris Upna Orcid; Bustince Sola, Humberto Upna Orcid; Galar Idoate, Mikel Upna Orcid (IEEE, 2020)   Artículo / Artikulua  OpenAccess
      In Machine Learning an ensemble refers to the combination of several classifiers with the objective of improving the performance of every one of its counterparts. To design an ensemble two main aspects must be considered: ...

    • Urban e-grocery distribution design in Pamplona (Spain) applying an agent-based simulation model with horizontal cooperation scenarios 

      Serrano Hernández, Adrián Upna Orcid; Torre, Rocío de la Upna Orcid; Cadarso, Luis; Faulín Fajardo, Javier Upna Orcid (MDPI, 2021)   Artículo / Artikulua  OpenAccess
      E-commerce has boosted in the last decades because of the achievements of the information and telecommunications technology along with the changes in the society life-style. More recently, the groceries online purchase (or ...

    • Use of Choquet integrals in multivalued contexts 

      Burusco Juandeaburre, Ana Upna Orcid; Alcalde, Cristina (Springer, 2020)   Artículo / Artikulua  OpenAccess
      In this work, multivalued contexts are studied, in which the different observations are related to each other. Continuing the studies already carried out in previous works, the use of Choquet integrals can be an adequate ...

    • 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 ...

    • Validation of 3D simulation tool for radio channel modeling at 60 GHz: a meeting point for empirical and simulation-based models 

      Celaya Echarri, Mikel Upna Orcid; Azpilicueta Fernández de las Heras, Leyre Upna Orcid; López Iturri, Peio Upna Orcid; Falcone Lanas, Francisco Javier Upna Orcid; García Sánchez, Manuel; Vázquez Alejos, Ana (Elsevier, 2020)   Artículo / Artikulua  OpenAccess
      The radio channel modelling of the millimeter wave bands for the fifth generation of wireless mobile communications, appears as a challenge for both empirical and simulation approaches. In this paper we discuss the use of ...
      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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