Listar Artículos de revista ISC - ISC aldizkari artikuluak por título
Mostrando ítems 442-461 de 631
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Optimum power transfer in RF front end systems using adaptive impedance matching technique
Alibakhshikenari, Mohammad; Virdee, Bal S.; Azpilicueta Fernández de las Heras, Leyre
; See, Chan H.; Abd-Alhameed, Raed; Althuwayb, Ayman Abdulhadi; Falcone Lanas, Francisco Javier ; Huynen, Isabelle; Denidni, Tayeb A.; Limiti, Ernesto (Nature Research, 2021)
Artículo / Artikulua 
Matching the antenna’s impedance to the RF-front-end of a wireless communications system is challenging as the impedance varies with its surround environment. Autonomously matching the antenna to the RF-front-end is therefore ... -
Optomagnonics in dispersive media: magnon-photon coupling enhancement at the epsilon-near-zero frequency
Bittencourt, V.A.S.V.; Liberal Olleta, Íñigo ; Viola Kusminskiy, Silvia (American Physical Society, 2022)
Artículo / Artikulua
Reaching strong light-matter coupling in solid-state systems has long been pursued for the implementation of scalable quantum devices. Here, we put forward a system based on a magnetized epsilon-near-zero (ENZ) medium, and ... -
Ordered directional monotonicity in the construction of edge detectors
Marco Detchart, Cedric ; Bustince Sola, Humberto ; Fernández Fernández, Francisco Javier ; Mesiar, Radko; Lafuente López, Julio ; Barrenechea Tartas, Edurne ; Pintor Borobia, Jesús María (Elsevier, 2021)
Artículo / Artikulua
In this paper we provide a specific construction method of ordered directionally monotone functions. We show that the functions obtained with this construction method can be used to build edge detectors for grayscale images. ... -
Orness for real m-dimensional interval-valued OWA operators and its application to determine a good partition
Miguel Turullols, Laura de ; Paternain Dallo, Daniel ; Lizasoain Iriso, María Inmaculada ; Ochoa Lezaun, Gustavo ; Bustince Sola, Humberto (Taylor & Francis, 2019)
Artículo / Artikulua
Ordered Weighted Averaging (OWA) operators are a profusely applied class of averaging aggregation functions, i.e. operators that always yield a value between the minimum and the maximum of the inputs. The orness measure ... -
Orness measurements for lattice m-dimensional interval-valued OWA operators
Miguel Turullols, Laura de ; Paternain Dallo, Daniel ; Lizasoain Iriso, María Inmaculada ; Ochoa Lezaun, Gustavo ; Bustince Sola, Humberto (Elsevier, 2018)
Artículo / Artikulua
Ordered weighted average (OWA) operators are commonly used to aggregate information in multiple situations, such as decision making problems or image processing tasks. The great variety of weights that can be chosen to ... -
Overcoming the diffraction limit with high-index dielectric particles
Pacheco-Peña, Víctor ; Beruete Díaz, Miguel (IEEE, 2019)
Contribución a congreso / Biltzarrerako ekarpena
In this communication, we propose and demonstrate the ability to produce photonic nanojets using high refractive index dielectric particles immersed in air. An extremely narrow focus is produced just at the output surface ... -
Paracetamol concentration-sensing scheme based on a linear cavity fiber laser configuration
(Elsevier, 2023) Artículo / ArtikuluaA paracetamol concentration-sensing scheme based on a linear cavity fiber laser configuration is demonstrated experimentally. The laser cavity has a fiber sensor at one end, that allows refractive index measurements. The ... -
Parameter-independent control for battery chargers based on virtual impedance emulation
Urtasun Erburu, Andoni ; Berrueta Irigoyen, Alberto ; Sanchis Gúrpide, Pablo ; Marroyo Palomo, Luis (IEEE, 2018)
Artículo / Artikulua
An effective battery voltage regulation is fundamental to extend battery lifetime and to avoid overvoltage. However, the design of this regulation is complicated due to the wide battery impedance range, which, when dealing ... -
Peculiarities of the structural and optical properties of rare-earth-doped phosphate glasses for temperature sensing applications
Elisa, M.; Iordache, S.M.; Iordache, A.M.; Vasiliu, Ileana Cristina; Grigorescu, C.E.A.; Sava, Bogdan Alexandru; Boroica, L.; Filip, A.V.; Dinca, M. C.; Bartha, Cristina; Acha Morrás, Nerea de ; Elosúa Aguado, César (Elsevier, 2021)
Artículo / Artikulua
Eu, Er, Yb-Er, and Dy-doped phosphate glasses were prepared by a wet-route processing of chemical precursors followed by melt-quenching and annealing. XRD measurements highlighted the amorphous nature of the investigated ... -
Performance analysis of ZigBee wireless networks for AAL through hybrid ray launching and collaborative filtering
López Iturri, Peio ; Casino, Fran; Aguirre Gallego, Erik ; Azpilicueta Fernández de las Heras, Leyre ; Falcone Lanas, Francisco Javier ; Solanas, Agusti (Hindawi, 2016)
Artículo / Artikulua
This paper presents a novel hybrid simulation method based on the combination of an in-house developed 3D ray launching algorithm and a collaborative filtering (CF) technique, which will be used to analyze the performance ... -
Performance assessment of an experimental CO2 transcritical refrigeration plant working with a thermoelectric subcooler in combination with an internal heat exchanger
Casi Satrústegui, Álvaro ; Aranguren Garacochea, Patricia ; Araiz Vega, Miguel ; Sánchez, Daniel; Cabello, Ramón; Astrain Ulibarrena, David (Elsevier, 2022)
Artículo / Artikulua
Regulations in the refrigeration sector are forcing the transition to low global warming potential fluids such as carbon dioxide in order to decrease direct greenhouse gases emissions. Several technologies have arisen over ... -
Phase noise effects on phase-sensitive OTDR sensors using optical pulse compression
Loayssa Lara, Alayn; Sagüés García, Mikel ; Eyal, Avishay (IEEE, 2021)
Artículo / Artikulua
We introduce a detailed theoretical, numerical, and experimental study of the effects of laser's phase noise on the performance of phase-sensitive optical time-domain reflectometry (-OTDR) sensors that use optical pulse ... -
Phase reversal technique applied to fishnet metalenses
Pacheco-Peña, Víctor ; Minin, Igor V.; Minin, Oleg V.; Beruete Díaz, Miguel (Hindawi, 2018)
Artículo / Artikulua
In this work, the fishnet metamaterial is applied to several converging metalenses by combining the zoning, reference phase, and phase reversal techniques. First, the zoning and reference phase techniques are implemented ... -
Photoisomerization-induced LMR shift for UV radiation detection
Gallego Martínez, Elieser Ernesto; Ruiz Zamarreño, Carlos ; Matías Maestro, Ignacio (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 ... -
Photonic controlled metasurface for intelligent antenna beam steering applications including 6G mobile communication systems
Muqdad, Zainab S.; Alibakhshikenari, Mohammad; Elwi, Taha A.; Hassain, Zaid Abdul; Virdee, Bal S.; Sharma, Richa; Khan, Salahuddin; Türker Tokan, Nurhan; Livreri, Patrizia; Falcone Lanas, Francisco Javier ; Limiti, Ernesto (Elsevier, 2023)
Artículo / Artikulua
This paper presents a novel metasurface antenna whose radiation characteristics can be remotely controlled by optical means using PIN photodiodes. The proposed reconfigurable antenna is implemented using a single radiating ... -
Photonic crystal fiber interferometer coated with a PAH/PAA nanolayer as humidity sensor
López Torres, Diego ; Elosúa Aguado, César ; Villatoro, Joel; Zubia, Joseba; Rothhardt, Manfred; Schuster, Kay; Arregui San Martín, Francisco Javier (Elsevier, 2017)
Artículo / Artikulua
In this paper, an optical fiber interferometric humidity sensor is presented. The device consists of 1 cmlong segment of photonic crystal fiber (PCF) spliced to standard single mode fibers (SMFs), forming an interferometer: ... -
Photonic nanojets with mesoscale high-index dielectric particles
Pacheco-Peña, Víctor ; Beruete Díaz, Miguel (AIP Publishing, 2019)
Artículo / Artikulua
In this work, we demonstrate the ability of high-index dielectric particles immersed in air to generate photonic nanojets with extreme resolution (∼0.06λ0). Both 2D (cylindrical) and 3D (spherical) particles are analyzed, ... -
Photonic-assisted 2-D terahertz beam steering enabled by a LWA array monolithically integrated with a BFN
Haddad, Thomas; Biurrun Quel, Carlos ; Lu, Peng; Tebart, Jonas; Sievert, Benedikt; Makhlouf, Sumer; Grzeslo, Marcel; Teniente Vallinas, Jorge ; Río Bocio, Carlos del ; Stöhr, Andreas (Optica, 2022)
Artículo / Artikulua
A novel photonic-assisted 2-D Terahertz beam steering chip using only two tuning elements is presented. The chip is based on an array of three leaky wave antennas (LWAs) with a monolithically integrated beamforming network ... -
Planar-waveguide-lmr-based sensors: engineering the depth of characteristic curves
Shrivastav, Anand M.; Del Villar, Ignacio ; Ascorbe Muruzabal, Joaquín ; Corres Sanz, Jesús María ; Matías Maestro, Ignacio (IEEE, 2023)
Artículo / Artikulua
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, ... -
The potential of forecasting in reducing the LCOE in PV plants under ramp-rate restrictions
Cirés Buey, Eulalia; Marcos Álvarez, Javier ; Parra Laita, Íñigo de la ; García Solano, Miguel ; Marroyo Palomo, Luis (Elsevier, 2019)
Artículo / Artikulua
An increasing number of grid codes are requiring the limitation of the PV output power fluctuation over a given time scale. Batteries represent the most obvious solution to smooth power fluctuations, with the corresponding ...
