Listar Artículos de revista DIEC - IEKS Aldizkari artikuluak por título

Low-cost eye tracking calibration: a knowledge-based study

Garde Lecumberri, Gonzalo

; Larumbe Bergera, Andoni

; Bossavit, Benoît

; Porta Cuéllar, Sonia

; Cabeza Laguna, Rafael

; Villanueva Larre, Arantxa

(MDPI, 2021) Artículo / Artikulua

Subject calibration has been demonstrated to improve the accuracy in high-performance eye trackers. However, the true weight of calibration in off-the-shelf eye tracking solutions is still not addressed. In this work, a ...

Low-cost online monitoring system for the etching process in fiber optic sensors by computer vision

Rodríguez Rodríguez, Wenceslao Eduardo; Puente-Sujo, Jesús Abraham; Rodríguez Rodríguez, Adolfo Josué; Matías Maestro, Ignacio

; Vargas Requena, Dávid Tomás; García-Garza, Luis Antonio (MDPI, 2023) Artículo / Artikulua

The present research exposes a novel methodology to manufacture fiber optic sensors following the etching process by Hydrofluoric Acid deposition through a real-time monitoring diameter measurement by computer vision. ...

Low-loss and dual-band filter inspired by glide symmetry principle over millimeter-wave spectrum for 5G cellular networks

Karamirad, Mohsen; Pouyanfar, Negin; Alibakhshikenari, Mohammad; Ghobadi, Changiz; Nourinia, Javad; See, Chan H.; Falcone Lanas, Francisco Javier

(Elsevier, 2023) Artículo / Artikulua

This paper focuses on designing a dual-band, bandpass filter configuration inspired by glide-symmetric structures in a single plane. Geometry configuration of elliptical slots on both sides of single substrate generally ...

Low-power wide-bandwidth CMOS indirect current feedback instrumentation amplifier

Carrillo, Juan M.; Domínguez, Miguel Á.; Pérez Aloe, Raquel; Cruz Blas, Carlos Aristóteles de la

; Duque Carrillo, J. Francisco (Elsevier, 2020) Artículo / Artikulua

The analysis and design trade-offs of a simple and economical technique to implement wideband low-voltage CMOS instrumentation amplifiers (IAs) based on indirect current feedback (ICF), are described. The input and an ...

A low-profile antenna for on-body and off-body applications in the lower and upper ISM and WLAN bands

Ali, Esraa Mousa; Awan, Wahaj Abbas; Naqvi, Syeda Iffat; Alzaidi, Mohammed S.; Alzahrani, Abdullah; Elkamchouchi, Dalia H.; Falcone Lanas, Francisco Javier

; Alharbi, Turki E. A. (MDPI, 2023) Artículo / Artikulua

The article presents a Co-planar Waveguide (CPW) fed antenna of a low-profile, simple geometry, and compact size operating at the dual band for ISM and WLAN applications for 5G communication devices. The antenna has a ...

M-wave changes caused by brief voluntary and stimulated isometric contractions

Rodríguez Falces, Javier

; Malanda Trigueros, Armando

; Navallas Irujo, Javier; Place, Nicolas (Springer, 2023) Artículo / Artikulua

Introduction Under isometric conditions, the increase in muscle force is accompanied by a reduction in the fbers’ length. The efects of muscle shortening on the compound muscle action potential (M wave) have so far been ...

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

Beato López, Juan Jesús

; Algueta-Miguel, Jose M.

; Galarreta Rodríguez, Itziar; López Ortega, Alberto

; Garayo Urabayen, Eneko

; Gómez Polo, Cristina

; Aresti Bartolomé, Maite; Soria Picón, Eneko; Pérez de Landazábal Berganzo, José Ignacio

(Elsevier, 2022) Artículo / Artikulua

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 ...

Mapping the conductivity of graphene with electrical resistance tomography

Cultrera, Alessandro; Serazio, Danilo; Zurutuza, Amaia; Centeno, Alba; Txoperena, Ohiana; Etayo Salinas, David

; Cordón, Álvaro; Redo Sánchez, Albert; Arnedo Gil, Israel

; Ortolano, Massimo; Callegaro, Luca (Nature Research, 2019) Artículo / Artikulua

Electronic applications of large-area graphene films require rapid and accurate methods to map their electrical properties. Here we present the first electrical resistance tomography (ERT) measurements on large-area graphene ...

Masked least-squares averaging in processing of scanning-EMG recordings with multiple-discharges

Corera Orzanco, Íñigo

; Malanda Trigueros, Armando

; Rodríguez Falces, Javier

; Navallas Irujo, Javier

(Springer, 2020) Artículo / Artikulua

Removing artifacts from nearby motor units is one of the main objectives when processing scanning-EMG recordings. Methods such as median filtering or masked least-squares smoothing (MLSS) can be used to eliminate artifacts ...

A masked least-squares smoothing procedure for artifact reduction in scanning-EMG recordings

Corera Orzanco, Íñigo

; Eciolaza Ferrando, Adrián

; Rubio Zamora, Oliver

; Malanda Trigueros, Armando

; Rodríguez Falces, Javier

; Navallas Irujo, Javier

(Springer, 2018) Artículo / Artikulua

Scanning-EMG is an electrophysiological technique in which the electrical activity of the motor unit is recorded at multiple points along a corridor crossing the motor unit territory. Correct analysis of the scanning-EMG ...

Maximum expected ramp rates using cloud speed sensor measurements

Wang, Guang Chao; Kurtz, Ben; Bosch, Juan Luis; Parra Laita, Íñigo de la

; Kleissl, Jan (American Institute of Physics, 2020) Artículo / Artikulua

Large ramps and ramp rates in photovoltaic (PV) power output are of concern and sometimes even explicitly restricted by grid operators. Battery energy storage systems can smooth the power output and maintain ramp rates ...

Measurement of paracetamol concentration using an erbium-doped fiber ring cavity

Soares, Liliana; Pérez Herrera, Rosa Ana

; Novais, Susana; Ferreira, António; Silva, Susana; Frazão, Orlando (MDPI, 2023) Artículo / Artikulua

Process Analytical Technology (PAT) has been increasingly used in the pharmaceutical industry to monitor essential parameters in real-time during pharmaceutical processes. The concentration of Active Pharmaceutical Ingredients ...

Las medidas de acción positiva a favor de la mujer en la empresa

Rodríguez Sanz de Galdeano, Beatriz

(Thomson Reuters-Aranzadi, 2020) Capítulo de libro / Liburuen kapitulua

Medium-voltage cascaded sequential topology for large-scale PV plants

Lumbreras Magallón, David

; Barrios Rípodas, Ernesto

; Balda Belzunegui, Julián; Navarrete, Manuel; González Senosiain, Roberto

; Sanchis Gúrpide, Pablo

(Institute of Electrical and Electronics Engineers Inc., 2021) Artículo / Artikulua

Photovoltaic (PV) conversion systems are in continuous development due to their increasingly competitive prices. The traditional configuration of large-scale PV plants is based on high-power central inverters, which have ...

Meta-surface wall suppression of mutual coupling between microstrip patch antenna arrays for THz-band applications

Alibakhshikenari, Mohammad; Virdee, Bal S.; Shukla, Panchamkumar; See, Chan H.; Falcone Lanas, Francisco Javier

(EMW Publishing, 2018) Artículo / Artikulua

This paper presents a novel 2D meta-surface wall to increase the isolation between microstrip patch radiators in an antenna array that is operating in the teraherz (THz) band of 139-141 GHz for applications including ...

Metageometries for polycyclic aromatic hydrocarbons detection at THz range in food systems

Jáuregui López, Irati

; Insausti Barrenetxea, Kizkitza

; Beriain Apesteguía, María José

; Beruete Díaz, Miguel

(IEEE, 2021) Artículo / Artikulua

Polycyclic aromatic hydrocarbons, when present in food systems, have been shown to have a detrimental effect on human health, producing carcinogenic elements. So, the implementation of processes for their detection and ...

Metal 3D printing for RF/microwave high-frequency parts

Martín Iglesias, Petronilo; Gómez Laso, Miguel Ángel

; Lopetegui Beregaña, José María; Teberio Berdún, Fernando

; Arregui Padilla, Iván

; Marechal, M.; Calves, P.; Hazard, M.; Pambaguian, L.; Brandao, A.; Rodríguez Castillo, S.; Martin, T.; Percaz Ciriza, Jon Mikel

; Iza, V.; Martín-Iglesias, Santiago (Springer, 2022) Artículo / Artikulua

Space Systems have been historically characterised by high performance, high reliability and high cost. Every new generation of space systems tends to improve performance, keep as much as possible reliability, speeding ...

Metal-free design of a multilayered metamaterial with chirped Bragg grating for enhanced radiative cooling

Osuna Ruiz, David; Lezaun Capdevila, Carlos; Torres García, Alicia E.

; Beruete Díaz, Miguel

(Optica, 2023) Artículo / Artikulua

A wideband, all-dielectric metamaterial structure for enhancing radiative cooling is investigated. The structure is optimized to reflect most of the solar irradiance window (between 0.3 µm–3 µm), which is one of the biggest ...

Metamaterial inspired electromagnetic bandgap filter for ultra-wide stopband screening devices of electromagnetic interference

Al-Hasan, Muath; Alibakhshikenari, Mohammad; Virdee, Bal S.; Sharma, Richa; Iqbal, Amjad; Althuwayb, Ayman Abdulhadi; Falcone Lanas, Francisco

(Springer, 2023) Artículo / Artikulua

Presented here is a reactively loaded microstrip transmission line that exhibit an ultra-wide bandgap. The reactive loading is periodically distributed along the transmission line, which is electromagnetically coupled. ...

Metamaterial-inspired antenna array for application in microwave breast imaging systems for tumor detection

Alibakhshikenari, Mohammad; Virdee, Bal S.; Shukla, Panchamkumar; Ojaroudi Parchin, Naser; Azpilicueta Fernández de las Heras, Leyre

; See, Chan H.; Abd-Alhameed, Raed; Falcone Lanas, Francisco Javier

; Huynen, Isabelle; Denidni, Tayeb A.; Limiti, Ernesto (IEEE, 2020) Artículo / Artikulua

This paper presents a study of a planar antenna-array inspired by the metamaterial concept where the resonant elements have sub-wavelength dimensions for application in microwave medical imaging systems for detecting tumors ...