Browsing Artículos de revista DIEE - IEES Aldizkari artikuluak by Title
Now showing items 63-82 of 298
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Dynamic BOTDA measurements based on Brillouin phase-shift and RF demodulation
Urricelqui Polvorinos, Javier
; Zornoza Indart, Ander; Sagüés García, Mikel ; Loayssa Lara, Alayn (Optical Society of America, 2012)
Artículo / Artikulua 
We demonstrate a novel dynamic BOTDA sensor based, for the first time to our knowledge, on the use of the Brillouin phase shift in addition to the conventional Brillouin gain. This provides the advantage of measurements ... -
ECOAL project: delivering solutions for integrated monitoring of coal-related fires supported on optical fiber sensing technology
Ribeiro, Joana; Viveiros, Duarte; Ferreira, João; López Gil, Alexia; Domínguez López, Alejandro; Martins, Hugo F.; Pérez Herrera, Rosa Ana; López Aldaba, Aitor ; Duarte, Lia; Rodrigues Pinto, Ana Margarida ; Martín López, Sonia; Baierl, Hardy; Jamier, Raphael; Rougier, Sébastien; Auguste, Jean-Louis; Teodoro, Ana Cláudia; Gonçalves, José Alberto; Esteban, Óscar; Santos, José Luís; Roy, Philippe; López-Amo Sáinz, Manuel ; González Herráez, Miguel; Baptista, José Manuel; Flores, Deolinda (MDPI, 2017)
Artículo / Artikulua
The combustion of coal wastes resulting from mining is of particular environmental concern, and the importance of proper management involving real-time assessment of their status and identification of probable evolution ... -
Effect of both protective and reducing agents in the synthesis of multicolor silver nanoparticles
Rivero Fuente, Pedro J.; Goicoechea Fernández, Javier; Urrutia Azcona, Aitor ; Arregui San Martín, Francisco Javier (Springer, 2013)
Artículo / Artikulua
In this paper, the influence of variable molar ratios between reducing and loading agents (1:100, 1:50, 1:20, 1:10, 1:5, 1:2, 1:1, 2:1) and between protective and loading agents (0.3:1, 0.75:1, 1.5:1, 3:1, 7.5:1, 30:1, ... -
Effect of the glottal source and the vocal tract on the partials amplitude of vibrato in male voices
Arroabarren Alemán, Ixone; Carlosena García, Alfonso (Acoustical Society of America, 2006)
Artículo / Artikulua
In this paper the production of vocal vibrato is investigated. The most relevant features of the acoustical vibrato signal, frequency and amplitude variations of the partials, will be related to the voice production ... -
Effects of pump pulse extinction ratio in Brillouin optical time-domain analysis sensors
Iribas Pardo, Haritz; Mariñelarena Ollacarizqueta, Jon ; Feng, Cheng; Urricelqui Polvorinos, Javier ; Schneider, Thomas; Loayssa Lara, Alayn (Optical Society of America, 2017)
Artículo / Artikulua
We report on two previously unknown non-local effects that have been found to impair Brillouin optical time-domain analysis (BOTDA) sensors that deploy limited extinction ratio (ER) pump pulses. The first one originates ... -
Electroinductive waves in chain of complementary metamaterial elements
Beruete Díaz, Miguel; Falcone Lanas, Francisco Javier ; Freire, M. J.; Marqués, R.; Baena, J.D. (AIP Publishing, 2006)
Artículo / Artikulua
Electronductive waves supported by chains of resonators drilled on a metallic plate are presented. Propagation of energy comes as a consequence of the electric coupling between these resonators. Therefore, these waves ... -
Electroinductive waves role in left-handed stacked complementary split rings resonators
Beruete Díaz, Miguel; Aznabet, Mariem; Navarro Cía, Miguel ; El Mrabet, O.; Falcone Lanas, Francisco Javier ; Aknin, N.; Essaaidi, M.; Sorolla Ayza, Mario (Optical Society of America, 2009)
Artículo / Artikulua
In this letter it is presented a Left-Handed Metamaterial design route based upon stacked arrays of screens made of complementary split rings resonators under normal incidence in the microwave regime. Computation of ... -
Electromagnetic cloaking with canonical spiral inclusions
Guven, K.; Sáenz Sáinz, Elena; Gonzalo García, Ramón ; Ozbay, Ekmel; Tretyakov, Sergei A. (IOP Publishing Ltd., 2008)
Artículo / Artikulua
We report an electromagnetic cloaking structure that is composed of identical canonical spiral particles. By using the Clausius-Mosotti formula, the electric and magnetic polarizabilities of a single spiral particle are ... -
Electromangetic force density in electrically and magnetically polarizable media
Liberal Olleta, Íñigo; Ederra Urzainqui, Íñigo ; Gonzalo García, Ramón ; Ziolkowski, Richard W. (American Physical Society, 2013)
Artículo / Artikulua
The force density induced by electromagnetic fields in electrically and magnetically polarizable media is studied analytically. Different formulations of the force density as a function of field-related quantities, ... -
Electromyographic, cerebral, and muscle hemodynamic responses during intermittent, isometric contractions of the biceps brachii at three submaximal intensities
Bhambhani, Yagesh; Fan, Jui Lin; Place, Nicolas; Rodríguez Falces, Javier; Kayser, Bengt (Frontiers Media, 2014)
Artículo / Artikulua
This study examined the electromyographic, cerebral and muscle hemodynamic responses during intermittent isometric contractions of biceps brachii at 20, 40, and 60% of maximal voluntary contraction (MVC). Eleven volunteers ... -
Enabling personal privacy for pervasive computing environments
Alcalde Bagüés, Susana; Zeidler, Andreas; Klein, Cornel; Fernández Valdivielso, Carlos ; Matías Maestro, Ignacio (Graz University of Technology, IICM, 2010)
Artículo / Artikulua
Protection of personal data in the Internet is already a challenge today. Users have to actively look up privacy policies of websites and decide whether they can live with the terms of use. Once discovered, they are ... -
Energy management strategy for a battery-diesel stand-alone system with distributed PV generation based on grid frequency modulation
Urtasun Erburu, Andoni; Sanchis Gúrpide, Pablo; Barricarte Rivas, David; Marroyo Palomo, Luis (Elsevier, 2014)
Artículo / Artikulua
A hybrid PV-Battery-Diesel configuration is very attractive for stand-alone systems in terms of cost and reliability. In many applications, the battery and the diesel generator are centralized and generate the AC grid while ... -
Enhancement of sensitivity in long period fiber gratings with deposition of low refractive index materials
Del Villar, Ignacio; Matías Maestro, Ignacio ; Arregui San Martín, Francisco Javier (Optical Society of America, 2005)
Artículo / Artikulua
It was proved [Opt. Lett. 30, 720 (2005)] that the deposition of an overlay of higher refractive index than that of the cladding on a long-period fiber grating (LPFG) causes large shifts in the attenuation bands induced by ... -
Enhancement of the dynamic range in slope-assisted coherent brillouin optical time-domain analysis sensors
Mariñelarena Ollacarizqueta, Jon; Urricelqui Polvorinos, Javier ; Loayssa Lara, Alayn (IEEE, 2017)
Artículo / Artikulua
We present two techniques that provide an extension of the dynamic range of coherent Brillouin optical time-domain analysis (BOTDA) sensors for dynamic measurements. This type of BOTDA sensors rely on self-heterodyne ... -
eOftalmología: estado actual y tendencias futuras
Andonegui Navarro, José; Serrano Arriezu, Luis Javier; Eguzkitza Diego, Aitor (Gobierno de Navarra, 2010)
Artículo / Artikulua
La eSalud se puede definir como el uso de las tecnologías de la información y las comunicaciones para proporcionar o apoyar un diverso grupo de actividades relacionadas con la atención en salud. Si este concepto se ... -
Epsilon-near-zero metalenses operating in the visible
Pacheco-Peña, Víctor; Navarro Cía, Miguel ; Beruete Díaz, Miguel (Elsevier, 2016)
Artículo / Artikulua
Several converging lenses working in the permittivity near to zero (ENZ) regime at optical frequencies are designed using an array of metal-dielectric-metal plasmonic waveguides. These plasmonic waveguides show a dispersive ... -
ESA-based in-fiber nanocavity for hydrogen–peroxide detection
Del Villar, Ignacio; Matías Maestro, Ignacio ; Arregui San Martín, Francisco Javier ; Claus, Richard O. (IEEE, 2005)
Artículo / Artikulua
A fiber-optic sensor sensitive to hydrogen peroxide has been designed based on the electrostatic layer-by-layer selfassembly method. Prussian blue has been deposited in a polymeric structure formed by Poly(allylamine ... -
Estimation of radiofrequency power leakage from microwave ovens for dosimetric assessment at nonionizing radiation exposure levels
López Iturri, Peio; Miguel Bilbao, Silvia de; Aguirre Gallego, Erik ; Azpilicueta Fernández de las Heras, Leyre ; Falcone Lanas, Francisco Javier ; Ramos González, Victoria (Hindawi, 2015)
Artículo / Artikulua
The electromagnetic field leakage levels of nonionizing radiation from a microwave oven have been estimated within a complex indoor scenario. By employing a hybrid simulation technique, based on coupling full wave simulation ... -
Etched LPFGs in reflective configuration for sensitivity and attenuation band depth increase
Del Villar, Ignacio; Socorro Leránoz, Abián Bentor ; Corres Sanz, Jesús María ; Matías Maestro, Ignacio ; Cruz, José Luis; Rego, Gaspar (IEEE, 2016)
Artículo / Artikulua
A reflection configuration setup for long-period fiber gratings is presented. It permits to obtain a unique band with attenuation double than that obtained in transmission configuration, which is interesting for ... -
Evaluation of deployment challenges of wireless sensor networks at signalized intersections
Azpilicueta Fernández de las Heras, Leyre; López Iturri, Peio ; Aguirre Gallego, Erik ; Martínez Carrasco, Carlos; Astrain Escola, José Javier ; Villadangos Alonso, Jesús ; Falcone Lanas, Francisco Javier (MDPI, 2016)
Artículo / Artikulua
With the growing demand of Intelligent Transportation Systems (ITS) for safer and more efficient transportation, research on and development of such vehicular communication systems have increased considerably in the last ...
