Browsing Artículos de revista DIEC - IEKS Aldizkari artikuluak by Issue Date
Now showing items 1-20 of 393
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Conductance-frequency droop control to ensure transient stability of inverter-based stand-alone microgrids
Erdocia Zabala, Ioseba
; Urtasun Erburu, Andoni 
; Marroyo Palomo, Luis (Elsevier, 2023)
Artículo / Artikulua 
Currently, inverter-based stand-alone microgrids are gaining interest due to the advantages of obtaining energy from renewable sources. To manage the operation, these microgrids include storage systems connected in ... -
Evaluating noise in passive beam forming networks for multibeam applications
Biurrun Quel, Carlos ; Río Bocio, Carlos del (Elsevier, 2023)
Artículo / Artikulua
In this work, we identify that the analysis in terms of noise of multibeam passive beam forming networks requires a proper formulation, in order not to overestimate the noise generated by the network. We show that the ... -
High saturation photocurrent THz waveguide-type MUTC-photodiodes reaching mW output power within the WR3.4 band
Grzeslo, Marcel; Dülme, Sebastián; Clochiatti, Simone; Neerfeld, Tom; Haddad, Thomas; Lu, Peng; Tebart, Jonas; Makhlouf, Sumer; Biurrun Quel, Carlos ; Fernández Estévez, José Luis; Lackmann, Jörg; Weimann, Nils; Stöhr, Andreas (Optica, 2023)
Artículo / Artikulua
In this paper, we report on waveguide-type modified uni-traveling-carrier photodiodes (MUTC-PDs) providing a record high output power level for non-resonant photodiodes in the WR3.4 band. Indium phosphide (InP) based ... -
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. ... -
Design of high gain base station antenna array for mm-wave cellular communication systems
Sehrai, Daniyal Ali; Khan, Jalal; Abdullah, Mujeeb; Asif, Muhammad; Alibakhshikenari, Mohammad; Virdee, Bal S.; Shah, Wahab Ali; Khan, Salahuddin; Ibrar, Muhammad; Jan, Saeedullah; Ullah, Amjad; Falcone Lanas, Francisco (Springer Nature, 2023)
Artículo / Artikulua
Millimeter wave (mm-Wave) wireless communication systems require high gain antennas to overcome path loss effects and thereby enhance system coverage. This paper presents the design and analysis of an antenna array for ... -
Lossy mode resonance based 1-butanol sensor in the mid-infrared region
Gallego Martínez, Elieser Ernesto; Matías Maestro, Ignacio ; Melendi Espina, Sonia; Hernáez Sáenz de Zaitigui, Miguel ; Ruiz Zamarreño, Carlos (Elsevier, 2023)
Artículo / Artikulua
The utilization of nanometric Graphene Oxide / Polyethyleneimine (GO/PEI) bilayers deposited onto SnO2-coated CaF2 planar waveguides significantly enhances the sensitivity of Lossy Mode Resonances (LMR) based devices for ... -
Association of intrinsic capacity with respiratory disease mortality
Ramírez Vélez, Robinson; Iriarte-Fernández, María; Santafé Rodrigo, Guzmán ; Malanda Trigueros, Armando ; Beard, John R.; García Hermoso, Antonio; Izquierdo Redín, Mikel (Elsevier, 2023)
Artículo / Artikulua
The World Health Organization (WHO) introduced a framework for healthy aging in 2015 that emphasizes functional ability instead of absence of disease. Healthy ageing is defined as “the process of building and maintaining ... -
Selective harmonic mitigation: limitations of classical control strategies and benefits of model predictive control
Rosado Galparsoro, Leyre ; Samanes Pascual, Javier ; Gubía Villabona, Eugenio ; López Taberna, Jesús (IEEE, 2023)
Artículo / Artikulua
Selective harmonic mitigation pulsewidth modulation (SHMPWM) combined with model predictive control (MPC) is a promising approach for grid-connected power converters. SHMPWM can guarantee grid code compliance in steady ... -
EMG probability density function: a new way to look at EMG signal filling from single motor unit potential to full interference pattern
Navallas Irujo, Javier; Eciolaza Ferrando, Adrián; Mariscal, Cristina; Malanda Trigueros, Armando ; Rodríguez Falces, Javier (IEEE, 2023)
Artículo / Artikulua
An analytical derivation of the EMG signal's amplitude probability density function (EMG PDF) is presented and used to study how an EMG signal builds-up, or fills, as the degree of muscle contraction increases. The EMG PDF ... -
High sensitivity lossy-mode resonance refractometer using low refractive index PFA planar waveguide
Domínguez Rodríguez, Ismel ; Corres Sanz, Jesús María ; Matías Maestro, Ignacio ; Ascorbe Muruzabal, Joaquín ; Del Villar, Ignacio (Elsevier, 2023)
Artículo / Artikulua
In this work a new strategy to improve the sensitivity of refractometers based on lossy-mode resonances has been proved. The proximity of the PFA (tetrafluoroethylene-perfluoro polymer) substrate refractive index to that ... -
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 ; 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 ... -
Deadbeat voltage control for a grid-forming power converter with LCL filter
Samanes Pascual, Javier ; Rosado Galparsoro, Leyre ; Gubía Villabona, Eugenio ; López Taberna, Jesús ; Pérez, Marcelo A. (IEEE, 2023)
Artículo / Artikulua
Grid-forming power converters are controlled as voltage sources to regulate the grid voltage and frequency. These converters can increase power system strength if they impose a voltage waveform resilient to grid transients. ... -
Association of intrinsic capacity with incidence and mortality of cardiovascular disease: prospective study in UK Biobank
Ramírez Vélez, Robinson; Iriarte-Fernández, María; Santafé Rodrigo, Guzmán ; Malanda Trigueros, Armando ; Beard, John R.; García Hermoso, Antonio; Izquierdo Redín, Mikel (Wiley, 2023)
Artículo / Artikulua
Background: The World Health Organization proposed the concept of intrinsic capacity (IC; the composite of all the physical and mental capacities of the individual) as central for healthy ageing. However, little research ... -
Monitoring structural transformations in metamagnetic shape memory alloys by non-contact GMI technology
Beato López, Juan Jesús ; La Roca, Paulo Matías ; Algueta-Miguel, Jose M. ; Garayo Urabayen, Eneko ; Sánchez-Alarcos Gómez, Vicente ; Recarte Callado, Vicente ; Gómez Polo, Cristina ; Pérez de Landazábal Berganzo, José Ignacio (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 ... -
Ammonia gas optical sensor based on lossy mode resonances
Armas, Dayron; Zubiate Orzanco, Pablo ; Ruiz Zamarreño, Carlos ; Matías Maestro, Ignacio (IEEE, 2023)
Artículo / Artikulua
This letter presents the fabrication and characterization of an ammonia (NH 3) gas optical sensor based on lossy mode resonances (LMRs). A chromium (III) oxide (Cr 2 O 3) thin film deposited onto a planar waveguide was ... -
An enhanced approach to virtually increase quasi-stationarity regions within geometric channel models for vehicular communications
Rodríguez Corbo, Fidel Alejandro; Celaya Echarri, Mikel; Shubair, Raed M.; Falcone Lanas, Francisco ; Azpilicueta Fernández de las Heras, Leyre (IEEE, 2023)
Artículo / Artikulua
Vehicular communication channels are intrinsically non-stationary, as they present high mobility and abundant dynamic scatterers. Quasi-stationary regions can assess the degree of non-stationarity within a determined ... -
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, ... -
Highly sensitive sensor for measuring material thermal expansion using a ring laser
Díaz Lucas, Silvia ; Fuentes Lorenzo, Omar ; Torres Betancourt, Angie Tatiana; Corres Sanz, Jesús María ; Matías Maestro, Ignacio (IEEE, 2023)
Artículo / Artikulua
A new thermal expansion sensor is presented in this letter. It combines an interferometric fiber sensor and an erbium-doped fiber ring laser as the light source. The sensor consists of a combination of single-mode, ... -
All-fiber ellipsometer for nanoscale dielectric coatings
Imas González, José Javier ; Matías Maestro, Ignacio ; Del Villar, Ignacio ; Ozcariz Celaya, Aritz ; Ruiz Zamarreño, Carlos ; Albert, Jacques (Chinese Academy of Sciences, 2023)
Artículo / Artikulua
Multiple mode resonance shifts in tilted fiber Bragg gratings (TFBGs) are used to simultaneously measure the thickness and the refractive index of TiO2 thin films formed by Atomic Layer Deposition (ALD) on optical fibers. ... -
Electrochemical lossy mode resonance for the detection of manganese ions
Domínguez Rodríguez, Ismel ; Corres Sanz, Jesús María ; Del Villar, Ignacio ; Mozo, Juan D.; Simerova, Radka; Sezemsky, Petr; Stranak, Vitezslav; Śmietana, Mateusz; Matías Maestro, Ignacio (Elsevier, 2023)
Artículo / Artikulua
In this work we propose electrochemical lossy mode resonance (eLMR) as a powerful method for the detection of manganese (Mn) ions. The sensor is based on a simple planar waveguide (sodasingle bondlime glass coverslip) ...
