Browsing Comunicaciones y ponencias de congresos DIEC - IEKS Biltzarretako komunikazioak eta txostenak by Issue Date
Now showing items 1-20 of 154
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Aluminum coated fiber optic sensor for enhancing flow rate measurement
Rodríguez Rodríguez, Armando; Urroz Unzueta, José Carlos
; Diéguez Elizondo, Pedro ; Bravo Acha, Mikel ; López-Amo Sáinz, Manuel ; López Rodríguez, José Javier (SPIE, 2023)
Contribución a congreso / Biltzarrerako ekarpena 
A water flow and velocity aluminum-coated Fiber Bragg Grating sensor system for open channels was designed, simulated and tested. The sensing head was designed, ruggedized and customized to measure velocities at ... -
Low-voltage CMOS bulk-driven buffer with bootstrapping technique for gain enhancement and THD-noise reduction
Cruz Blas, Carlos Aristóteles de la ; Carrillo, Juan M. (IEEE, 2022)
Contribución a congreso / Biltzarrerako ekarpena
In this paper, a bootstrapping technique is applied to a bulk-driven voltage buffer for canceling the gate-source transconductance in order to improve the cell gain, the linearity and reduce the input-referred noise. The ... -
Multipactor breakdown analysis of Ku-band meandered low-pass filter
Sami, Abdul; Teberio Berdún, Fernando ; Arnedo Gil, Israel; Martín Iglesias, Petronilo; Lopetegui Beregaña, José María; Gómez Laso, Miguel Ángel ; Arregui Padilla, Iván (2022)
Contribución a congreso / Biltzarrerako ekarpena
In this work, a very compact rectangular waveguide low-pass filter with meandered topology based on commensurate lines for Ku-band satellite applications is analysed for high-power handling capabilities. The device consists ... -
Control strategy for a droop-controlled grid-connected DFIG wind turbine
Oraá Iribarren, Iker; Samanes Pascual, Javier ; López Taberna, Jesús ; Gubía Villabona, Eugenio (IEEE, 2022)
Contribución a congreso / Biltzarrerako ekarpena
The application of droop control techniques without inner current control loops to doubly-fed induction generator (DFIG) based wind turbines does not allow to provide a stable response at all operating points in terms of ... -
Comparison of a slotted SIW antenna covered with metasurface vs. a traditional array
Chocarro Álvarez, Javier; Pérez Escudero, José Manuel ; Ederra Urzainqui, Íñigo (IEEE, 2022)
Contribución a congreso / Biltzarrerako ekarpena
In this article we compare two solutions to improve the radiation pattern of a slotted Substrate Integrated Waveguide (SIW) antenna: use of an E-plane array and covering it with a metasurface (MTS). To this aim, we compare ... -
Filtro paso banda en tecnología groove gap waveguide con altura de pines reducida para facilitar su fabricación
Santiago Arriazu, David; Gómez Laso, Miguel Ángel ; Lopetegui Beregaña, José María; Arregui Padilla, Iván (Universidad de Málaga, 2022)
Contribución a congreso / Biltzarrerako ekarpena
In this work, a novel topology of groove gap waveguide (GGW) technology is presented to facilitate the fabrication process by Computer Numerical Control (CNC) milling. GGW has been proposed as an interesting alternative ... -
Alfalfa quality detection by means of VIS-NIR optical fiber reflection spectroscopy
Ruiz Zamarreño, Carlos ; Gracia Moisés, Ander; Vitoria Pascual, Ignacio ; Imas González, José Javier ; Castaño Egues, Lorena Yveth; Avedillo, A.; Matías Maestro, Ignacio (IEEE, 2022)
Contribución a congreso / Biltzarrerako ekarpena
A first approach study for the classification of alfalfa (medicago sativa) quality has been performed by means of VIS-NIR optical fiber reflection spectroscopy. Reflection spectral data has been obtained from alfalfa samples ... -
Long-range and high-resolution traffic monitoring based on pulse-compression DAS and advanced vehicle tracking algorithm
Corera Orzanco, Íñigo ; Piñeiro Ben, Enrique; Navallas Irujo, Javier; Sagüés García, Mikel ; Loayssa Lara, Alayn (Optica Publishing Group, 2022)
Contribución a congreso / Biltzarrerako ekarpena
We demonstrate traffic monitoring over tens of kilometres of road using an enhanced distributed acoustic sensing system based on optical pulse compression and a novel transformed-domain-based processing scheme with enhanced ... -
Bloch surface wave resonances generated with dielectric stack of high refractive index contrast deposited on a D-shaped optical fiber for sensing applications
Del Villar, Ignacio ; Kwietniewski, Norbert; Gonzalez-Valencia, Esteban; Burnat, Dariusz; Armas, Dayron; Pitula, Emil; Matías Maestro, Ignacio ; Chiavaioli, Francesco; Torres, Pedro; Smietana, Mateusz (Optica Publishing Group, 2022)
Contribución a congreso / Biltzarrerako ekarpena
A 5-layer stack composed of TiO2 and Al2O3, two materials with a high refractive index contrast, was deposited on a D-shaped fiber to generate Bloch surface wave resonances with an improved figure of merit. -
Quasi-distributed vibration analysis of a cantilever beam using OFDR and weak reflectors
Leandro González, Daniel ; Zhu, Mengshi; Wada, Daichi; Kasai, Tokio; Igawa, Hirotaka; López-Amo Sáinz, Manuel ; Murayama, Hideaki (Optica Publishing Group, 2022)
Contribución a congreso / Biltzarrerako ekarpena
This work evaluates the performance of a quasi-distributed in-line velocimeter based on OFDR and weak reflectors to measure vibration every 10 cm, using a cantilever beam under free-end damping and during an impact-hammer test. -
Compensation of phase-noise in pulse-compression phase-sensitive OTDR sensors
Piñeiro Ben, Enrique; Sagüés García, Mikel ; Eyal, Avishay; Loayssa Lara, Alayn (Optica Publishing Group, 2022)
Contribución a congreso / Biltzarrerako ekarpena
We introduce a technique to compensate the performance impairments due to the laser phase noise in long-range pulse-compression DAS sensors. Experiments demonstrate the use of the longest duration pulse compression waveform ... -
Narrowband and spectrally robust thermal emission from metallic thin films on top of epsilon-near-zero substrates
Navajas Hernández, David; Pérez Escudero, José Manuel ; Liberal Olleta, Íñigo (IEEE, 2022)
Contribución a congreso / Biltzarrerako ekarpena
The absorption and emission of infrared radiation by ultra-thin metallic films is a key element in several thermal engineering applications such as heat and energy management, and thermal camouflage. However, ultra-thin ... -
Noise in coherently radiating periodic structures beam forming networks
Biurrun Quel, Carlos ; Río Bocio, Carlos del (IEEE, 2022)
Contribución a congreso / Biltzarrerako ekarpena
Following the noise wave theory, beam forming networks based on Coherently Radiating Periodic Structures (CORPS-BFN) are analysed and proven to be capable of enhancing the Signal to Noise Ratio of the system by analogically ... -
Development of a water flow and velocity optical fiber sensor for field testing
Rodríguez Rodríguez, Armando; Urroz Unzueta, José Carlos ; Diéguez Elizondo, Pedro ; Bravo Acha, Mikel ; López-Amo Sáinz, Manuel ; López Rodríguez, José Javier (Optica Publishing Group, 2022)
Contribución a congreso / Biltzarrerako ekarpena
A water flow and velocity fiber optic sensor system was developed and tested. The sensing head was especially developed and ruggedized to measure velocities at different depths, in order to calculate the discharge in channels. -
f-HybridMem: a consensual analysis via fuzzy consensus measures and penalty functions
(IEEE, 2022) Contribución a congreso / Biltzarrerako ekarpena
This paper considers the consensual analysis in decision-making (CDM) processes based on fuzzy logic (FL) and interval-valued fuzzy logic (IVFL), providing a CDM-strategy, by exploring the axiomatic properties of fuzzy ... -
Generalization of QL-operators based on general overlap and general grouping functions
Botelho, Cecilia; Galvao, Alessandra; Santos, Helida; Pinheiro, Jocivania; Bedregal, Benjamin ; Yamin, Adenauer; Reiser, Renata (IEEE, 2022)
Contribución a congreso / Biltzarrerako ekarpena
Firstly, this work discusses the main conditions guarantying that general overlap (grouping) functions can be obtained from n-dimensional overlap (grouping) functions. Focusing on QL-implications, which are usually ... -
Modelling and operation of 6-pulse thyristor rectifiers for supplying high power electrolyzers
Iribarren Zabalegui, Álvaro; Barrios Rípodas, Ernesto ; Ibaiondo, Harkaitz; Sánchez Ruiz, Alain; Arza, Joseba; Sanchis Gúrpide, Pablo ; Ursúa Rubio, Alfredo (IEEE, 2022)
Contribución a congreso / Biltzarrerako ekarpena
This paper presents a detailed analysis of a 6-pulse thyristor rectifier aimed at supplying high power electrolyzers. For this purpose, an analytical model of the three-phase controlled rectifier with AC-side inductance ... -
Design alternatives for a submm-wave Fabry-Perot cavity antenna
Platero Rodrigo, Naiara; Iriarte Galarregui, Juan Carlos ; Ederra Urzainqui, Íñigo (IEEE, 2022)
Contribución a congreso / Biltzarrerako ekarpena
This paper discusses different design alternatives for a high gain planar antenna at 240 GHz. The antenna is based on a Fabry-Perot configuration, where two different partial reflection surfaces (PRS) are considered: a ... -
Compact pillbox reflector based on geodesic lens
Pérez Quintana, Dayan; Chen, Q.; Beruete Díaz, Miguel ; Quevedo-Teruel, O. (IEEE, 2022)
Contribución a congreso / Biltzarrerako ekarpena
We propose a pillbox antenna in combination with a geodesic lens at 60 GHz. The antenna is implemented in a dual-layer parallel plate waveguide. The waves from a geodesic lens in a first layer, after being reflected by a ... -
Integration of second-life batteries in residential microgrids and fast charging stations
San Martín Biurrun, Idoia ; Braco Sola, Elisa ; Martín Castilla, Álvaro; Sanchis Gúrpide, Pablo ; Ursúa Rubio, Alfredo (IEEE, 2022)
Contribución a congreso / Biltzarrerako ekarpena
The potential of batteries from electric vehicles to be given a second life in stationary applications could be starting to become a reality in few years. However, the technical and economic feasibility of such second-life ...
