Artículos de revista ISC - ISC aldizkari artikuluak: Recent submissions
Now showing items 1-20 of 208
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Super-resolution of Sentinel-2 images using convolutional neural networks and real ground truth data
Galar Idoate, Mikel
; Sesma Redín, Rubén; Ayala Lauroba, Christian; Albizua, Lourdes; Aranda, C. (MDPI, 2020)
Artículo / Artikulua 
Earth observation data is becoming more accessible and affordable thanks to the Copernicus programme and its Sentinel missions. Every location worldwide can be freely monitored approximately every 5 days using the ... -
Optical fiber sensors based on microstructured optical fibers to detect gases and volatile organic compounds-A review
López Torres, Diego; Elosúa Aguado, César ; Arregui San Martín, Francisco Javier (MDPI, 2020)
Artículo / Artikulua
Since the first publications related to microstructured optical fibers (MOFs), the development of optical fiber sensors (OFS) based on them has attracted the interest of many research groups because of the market niches ... -
Implementation of an interactive environment with multilevel wireless links for distributed botanical garden in university campus
Klaina, Hicham; Picallo Guembe, Imanol; López Iturri, Peio ; Astrain Escola, José Javier ; Falcone Lanas, Francisco Javier (IEEE, 2020)
Artículo / Artikulua
In this contribution, an end to end system to enable user interaction with a distributed botanical university campus garden is designed, implemented and tested. The proposed system employs different wireless links to collect ... -
Gamma radiation-induced effects over an optical fiber laser: towards new sensing applications
Pérez Herrera, Rosa Ana; Stancalie, Andrei; Cabezudo Sánchez-Valverde, Pablo Miguel; Sporea, Dan; López-Amo Sáinz, Manuel (MDPI, 2020)
Artículo / Artikulua
In the present work, the effect of gamma radiation on the performance of different types of erbium-doped fibers (EDFs) when they are used in a fiber ring cavity (FRC) configuration is studied. Several pieces of commercial ... -
Propuesta de programación formativa específica en PRL para inspectores y directores técnicos de estaciones de inspección técnica de equipos de aplicación de productos fitosanitarios (ITEAF)
(Borrmart, 2020) Artículo / Artikulua
El sector agrario es uno de los sectores que tradicionalmente presenta una mayor siniestralidad laboral. Además, hay una carencia informativa en materia preventiva y la formación se limita a la cualificación obligatoria ... -
A gap waveguide-based compact rectangular waveguide to a packaged microstrip inline transition
Pérez Escudero, José Manuel; Torres-García, Alicia ; Gonzalo García, Ramón ; Ederra Urzainqui, Íñigo (MDPI, 2020)
Artículo / Artikulua
In this paper two different simple to design and easy to manufacturing transitions from a microstrip to rectangular waveguide based on ridge and groove gap waveguides are studied. The first one is based on a combination ... -
A comprehensive review: materials for the fabrication of optical fiber refractometers based on lossy mode resonance
Ozcariz Celaya, Aritz; Ruiz Zamarreño, Carlos ; Arregui San Martín, Francisco Javier (MDPI, 2020)
Artículo / Artikulua
Lossy mode resonance based sensors have been extensively studied in recent years. The versatility of the lossy mode resonance phenomenon has led to the development of sensors based on different configurations that make use ... -
Feasibility of vermicomposting of spent coffee grounds and silverskin from coffee industries: a laboratory study
González Moreno, Miguel Ángel; Marcelino Sádaba, Sara; Zaratiegui Urdin, Javier; Robles Domínguez, Estrella; Pérez Ezcurdia, Amaya ; Seco Meneses, Andrés (MDPI, 2020)
Artículo / Artikulua
In the coffee industry, several by-products are generated during the production and consumption of coffee and represent an important waste from an environmental viewpoint. For improving the knowledge about this issue, a ... -
Fabrication of long period gratings by periodically removing the coating of cladding-etched single mode optical fiber towards optical fiber sensor development
Ascorbe Muruzabal, Joaquín; Corres Sanz, Jesús María ; Del Villar, Ignacio ; Matías Maestro, Ignacio (MDPI, 2018)
Artículo / Artikulua
Here, we present a novel method to fabricate long period gratings using standard single mode optical fibers (SMF). These optical devices were fabricated in a three-step process, which consisted of etching the SMF, then ... -
Quantum antenna arrays: the role of quantum interference on direction-dependent photon statistics
Liberal Olleta, Íñigo; Ederra Urzainqui, Íñigo ; Ziolkowski, Richard W. (American Physical Society, 2018)
Artículo / Artikulua
We investigate the role of quantum interference phenomena on the characteristics of the fields radiated by an array of quantum emitters. In analogy to, but distinct from, classical outcomes, we demonstrate that the array ... -
Wavelength converter using a highly Er-doped optical fiber ring laser
Pérez Herrera, Rosa Ana; López-Amo Sáinz, Manuel ; Rodríguez, Luis; Ventura Rípodas, Daniel; López Higuera, José Miguel (IOP Publishing, 2018)
Artículo / Artikulua
This work presents an all-fiber wavelength converter based on a highly Er-doped fiber laser, which has been experimentally demonstrated. Frequencies from several kilohertz up to tens of gigahertz have been investigated. ... -
Managing transportation externalities in the Pyrenees region: measuring the willingness-to-pay for road freight noise reduction using an experimental auction mechanism
Denant-Boemont, Laurent; Faulín Fajardo, Javier; Hammiche, Sabrina; Serrano Hernández, Adrián (Elsevier, 2018)
Artículo / Artikulua
The estimation of the noise impact caused by road freight transportation is critical to have acknowledgment of the ambiance pollution caused by road traffic crossing geographical areas containing important natural resources. ... -
Real-time imaging with frequency scanning array antenna for industrial inspection applications at W band
Larumbe Gonzalo, Belén; Laviada, Jaime; Ibáñez Loinaz, Asier; Teniente Vallinas, Jorge (Springer, 2018)
Artículo / Artikulua
A real-time imaging system based on a frequency scanning antenna for conveyor belt setups is presented in this paper. The frequency scanning antenna together with an inexpensive parabolic reflector operates at the W band ... -
Computational study of geothermal thermoelectric generators with phase change heat exchangers
Catalán Ros, Leyre; Araiz Vega, Miguel ; Aranguren Garacochea, Patricia ; Astrain Ulibarrena, David (Elsevier, 2020)
Artículo / Artikulua
The use of thermoelectric generators with phase change heat exchangers has demonstrated to be an interesting and environmentally friendly alternative to enhanced geothermal systems (EGS) in shallow hot dry rock fields ... -
Prospects of autonomous volcanic monitoring stations: experimental investigation on thermoelectric generation from fumaroles
Catalán Ros, Leyre; Araiz Vega, Miguel ; Padilla, Germán D.; Hernández, Pedro A.; Pérez, Nemesio M.; García de la Noceda, Celestino; Albert, José F.; Astrain Ulibarrena, David (MDPI, 2020)
Artículo / Artikulua
Fumaroles represent evidence of volcanic activity, emitting steam and volcanic gases at temperatures between 70 and 100 °C. Due to the well-known advantages of thermoelectricity, such as reliability, reduced maintenance ... -
Experimental evidence of the viability of thermoelectric generators to power volcanic monitoring stations
Catalán Ros, Leyre; Garacochea Sáenz, Amaia; Casi Satrústegui, Álvaro ; Araiz Vega, Miguel ; Aranguren Garacochea, Patricia ; Astrain Ulibarrena, David (MDPI, 2020)
Artículo / Artikulua
Although there is an important lack of commercial thermoelectric applications mainly due to their low efficiency, there exist some cases in which thermoelectric generators are the best option thanks to their well-known ... -
Ultrathin sub-terahertz half-wave plate with high conversion efficiency based on zigzag metasurface
Moreno-Peñarrubia, Alexia; Kuznetsov, Sergei A.; Beruete Díaz, Miguel (IEEE, 2020)
Artículo / Artikulua
In this communication, an ultrathin transmissive half-wave plate (HWP) based on a bi-layered zigzag metasurface operating at the lower frequency edge of the terahertz (THz) spectrum is numerically and experimentally studied. ... -
A decision tree based approach with sampling techniques to predict the survival status of poly-trauma patients
Sanz Delgado, José Antonio; Fernández Fernández, Francisco Javier ; Bustince Sola, Humberto ; Gradín Purroy, Carlos; Belzunegui Otano, Tomás (Atlantis Press, 2017)
Artículo / Artikulua
Survival prediction of poly-trauma patients measure the quality of emergency services by comparing their predictions with the real outcomes. The aim of this paper is to tackle this problem applying C4.5 since it achieves ... -
Quasi-distributed vibration sensing based on weak reflectors and STFT demodulation
Leandro González, Daniel; Zhu, Mengshi; López-Amo Sáinz, Manuel ; Muruyama, Hideaki (IEEE, 2020)
Artículo / Artikulua
In this work, a new system is proposed for quasi-distributed vibration sensing based on the Doppler effect. The setup employs an optical frequency domain reflectometer (OFDR) and an array of weak reflectors. The short-time ... -
Simultaneous measurement of humidity and temperature based on a partially coated optical fiber long period grating
Urrutia Azcona, Aitor; Goicoechea Fernández, Javier ; Ricchiuti, Amelia L.; Barrera, D.; Arregui San Martín, Francisco Javier (Elsevier, 2016)
Artículo / Artikulua
A humidity and temperature optical fiber sensor based on a long-period grating (LPG), which can provide simultaneous response to both magnitudes, is proposed and demonstrated via experiments. Previously, the LPG was fully ...
