Listar Artículos de revista ISC - ISC aldizkari artikuluak por fecha de publicación
Mostrando ítems 41-60 de 602
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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) ... -
UV light detection with side polished CYTOP fiber
Ayechu Abendaño, Ada; Santano, Desiree ; López Vargas, Juan David; Matías Maestro, Ignacio ; Del Villar, Ignacio (IEEE, 2023)
Artículo / Artikulua
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 ... -
LMR-based optical sensor for ethylene detection at visible and mid-infrared regions
Gallego Martínez, Elieser Ernesto; Hualde Otamendi, Mikel; Ruiz Zamarreño, Carlos ; Matías Maestro, Ignacio (IEEE, 2023)
Artículo / Artikulua
Ethylene monitoring has long been a method of controlling the ripening of climacteric fruits, but it turns out that this gas is an important biomarker in biomedical applications. This work presents an optical gas sensor ... -
Space mission risk, sustainability and supply chain: review, multi-objective optimization model and practical approach
(MDPI, 2023) Artículo / Artikulua
This paper investigates the convergence of risk, sustainability, and supply chain in space missions, including a review of fundamental concepts, the introduction of a multi-objective conceptual optimization model, and ... -
Acuity-based rotational patient-to-physician assignment in an emergency department using electronic health records in triage
Cildoz Esquíroz, Marta ; Ibarra Bolt, Amaya; Mallor Giménez, Fermín (SAGE, 2023)
Artículo / Artikulua
Emergency department (ED) operational metrics generated by a new acuity-based rotational patient-to-physician assignment (ARPA) algorithm are compared with those obtained with a simple rotational patient assignment (SRPA) ... -
Analog lock-in amplifier design using subsampling for accuracy enhancement in GMI sensor applications
Algueta-Miguel, Jose M. ; Beato López, Juan Jesús ; López Martín, Antonio (MDPI, 2023)
Artículo / Artikulua
A frequency downscaling technique for enhancing the accuracy of analog lock-in amplifier (LIA) architectures in giant magneto-impedance (GMI) sensor applications is presented in this paper. As a proof of concept, the ... -
VTOL UAV digital twin for take-off, hovering and landing in different wind conditions
Aláez Gómez, Daniel; Olaz Moratinos, Xabier; Prieto Míguez, Manuel; Villadangos Alonso, Jesús ; Astrain Escola, José Javier (Elsevier, 2023)
Artículo / Artikulua
With UAVs becoming increasingly popular in the industry, vertical take-off and landing (VTOL) convertiplanes are emerging as a compromise between the advantages of planes and multicopters. Due to their large wing surface ... -
Instantaneous amplitude and phase signal modeling for harmonic removal in wind turbines
Zivanovic, Miroslav ; Plaza Puértolas, Aitor ; Iriarte Goñi, Xabier ; Carlosena García, Alfonso (Elsevier, 2023)
Artículo / Artikulua
We present a novel approach to harmonic disturbance removal in single-channel wind turbine acceleration data by means of time-variant signal modeling. Harmonics are conceived as a set of quasi-stationary sinusoids whose ... -
Characterization of multilayer coupling based on square complementary split ring resonator for multiport device implementation
Jarauta Ayensa, Eduardo; Iriarte Galarregui, Juan Carlos ; Falcone Lanas, Francisco Javier (MDPI, 2023)
Artículo / Artikulua
The advent of context-aware environments and related applications demands a high degree of connectivity, with new spectral bands and related radio resource management functionalities in the current 5G bands and foreseen ... -
Estimation of patient flow in hospitals using up-to-date data: application to bed demand prediction during pandemic waves
García de Vicuña Bilbao, Daniel; López-Cheda, Ana; Jácome, María Amalia; Mallor Giménez, Fermín (Public Library of Science, 2023)
Artículo / Artikulua
Hospital bed demand forecast is a first-order concern for public health action to avoid healthcare systems to be overwhelmed. Predictions are usually performed by estimating patients flow, that is, lengths of stay and ... -
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 Javier (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 ... -
Field test of a geothermal thermoelectric generator without moving parts on the Hot Dry Rock field of Timanfaya National Park
Catalán Ros, Leyre ; Alegría Cía, Patricia; Araiz Vega, Miguel ; Astrain Ulibarrena, David (Elsevier, 2023)
Artículo / Artikulua
Although in the last years thermoelectric generators have arisen as a solution to boost geothermal power generation, tests on field are still scarce. The vast majority of the available studies focus on computational ... -
Optical-microwave sensor for real-time measurement of water contamination in oil derivatives
Abdulsattar, Rusul K.; Alibakhshikenari, Mohammad; Virdee, Bal S.; Sharma, Richa; Elwi, Taha A.; Kouhalvandi, Lida; Hassain, Zaid Abdul; Ali, Syed Mansoor; Türker Tokan, Nurhan; Livreri, Patrizia; Falcone Lanas, Francisco ; Limiti, Ernesto (Elsevier, 2023)
Artículo / Artikulua
This paper presents a novel microwave sensor using optical activation for measuring in real-time the water contamination in crude oil or its derivatives. The sensor is constructed from an end-coupled microstrip resonator that ... -
Bulk-driven CMOS linear transconductance-cell for AC amplifiers with very low cut-off frequency
Ocampo-Hidalgo, Juan J.; Domínguez, Miguel Á.; Cruz Blas, Carlos Aristóteles de la ; Carrillo, Juan M. (Elsevier, 2023)
Artículo / Artikulua
This manuscript proposes a novel linearized transconductor for AC amplifiers with a very low cut-off frequency. The cell uses an alternative solution that is based on a modified source-degeneration OTA, using two bulkdriven ... -
Advanced phase-change intermediate heat exchanger development for multistage thermoelectric heat pumps
Erro Iturralde, Irantzu; Aranguren Garacochea, Patricia ; Alegría Cía, Patricia; Rodríguez García, Antonio ; Astrain Ulibarrena, David (Elsevier, 2023)
Artículo / Artikulua
The need to reach a full energy decarbonisation is well known. Heating and cooling consumption is almost half of the global energy end-use. Thus, development of low-carbon and highly efficient power-to-heat technologies ... -
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. ... -
Incandescent temporal metamaterials
Vázquez Lozano, Juan Enrique; Liberal Olleta, Íñigo (Nature Research, 2023)
Artículo / Artikulua
Regarded as a promising alternative to spatially shaping matter, time-varying media can be seized to control and manipulate wave phenomena, including thermal radiation. Here, based upon the framework of macroscopic quantum ...
