Comunicaciones y ponencias de congresos DCIE - ZIES Biltzarretako komunikazioak eta txostenak

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Browsing Comunicaciones y ponencias de congresos DCIE - ZIES Biltzarretako komunikazioak eta txostenak by Department/Institute "Estatistika, Informatika eta Matematika"

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    PublicationOpen Access
    Development of a cognitive IoT-enabled Smart Campus
    (IEEE, 2024-08-23) Picallo Guembe, Imanol; Klaina, Hicham; López Iturri, Peio; Azpilicueta Fernández de las Heras, Leyre; Celaya Echarri, Mikel; Astrain Escola, José Javier; Villadangos Alonso, Jesús; Falcone Lanas, Francisco; Ingeniería Eléctrica, Electrónica y de Comunicación; Ingeniaritza Elektrikoa, Elektronikoa eta Telekomunikazio Ingeniaritza; Estadística, Informática y Matemáticas; Estatistika, Informatika eta Matematika; Ciencias; Zientziak; Institute of Smart Cities - ISC
    The evolution from Smart to Cognitive Cities takes advantage, among others, of advanced communication technologies in order to increase interactivity levels. In this work, an analysis of wireless connectivity within the framework of a Smart Campus pilot at the Public University of Navarra in Spain is presented. By means of in-house implemented hybrid deterministic code, multiple wireless connectivity conditions with different operating frequencies are presented. The use of these tools provides accurate coverage/capacity analysis of large, complex scenarios, aiding in the design of network devices as well as overall network topology in order to optimize overall performance.
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    PublicationOpen Access
    Enabling anything to anything connectivity within urban environments towards cognitive frameworks
    (IEEE, 2024-08-23) Picallo Guembe, Imanol; Klaina, Hicham; López Iturri, Peio; Azpilicueta Fernández de las Heras, Leyre; Celaya Echarri, Mikel; Astrain Escola, José Javier; Villadangos Alonso, Jesús; Falcone Lanas, Francisco; Ingeniería Eléctrica, Electrónica y de Comunicación; Ingeniaritza Elektrikoa, Elektronikoa eta Telekomunikazio Ingeniaritza; Estadística, Informática y Matemáticas; Estatistika, Informatika eta Matematika; Ciencias; Zientziak; Institute of Smart Cities - ISC
    The evolution from Smart Cities towards Cognitive Cities is enabled, among others, by the use of flexible and adaptive communication systems, capable of providing high levels of interactivity among multiple systems and users. In this work, wireless connectivity in full volumetric scale is analyzed, in order to provide wireless links between any device/user within the scenario, spanning to different applications from vehicular connectivity at different levels or infrastructure related communications, among others.
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    PublicationOpen Access
    Grape stems as preservative in Tempranillo wine
    (2022) Pires Nogueira, Danielle; Jiménez Moreno, Nerea; Esparza Catalán, Irene; Moler Cuiral, José Antonio; Ancín Azpilicueta, Carmen; Zientziak; Estatistika, Informatika eta Matematika; Institute for Advanced Materials and Mathematics - INAMAT2; Ciencias; Estadística, Informática y Matemáticas
    SO2 is the most widely used preservative in the wine industry. However, there are several drawbacks related with the use of SO2 in wine, such as, its toxicity and the unpleasant odor in case of excess [1]. These reasons justify the importance of searching alternatives to reduce or eliminate this preservative from wine. Polyphenol rich extracts from agri-food industry by-products have been studied as a replacement for their high antioxidant activity, and positive results reported [2]. The grapes stems are discarded early on in the winemaking process, in spite of containing large amounts of polyphenolic compounds with antioxidant activity. The aim of this work was to determine whether the ground stem and its extract had the potential to totally or partially replace SO2 in wine.
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    PublicationOpen Access
    Smarterial – Smart matter optomagnetic
    (2021) Irisarri Erviti, Josu; Marzo Pérez, Asier; Galarreta Rodríguez, Itziar; Estatistika, Informatika eta Matematika; Ingeniaritza; Zientziak; Institute of Smart Cities - ISC; Institute for Advanced Materials and Mathematics - INAMAT2; Estadística, Informática y Matemáticas; Ingeniería; Ciencias
    Smart materials, also known as programmable materials, are a combination of different components that have the capability to change shape, move around and adapt to numerous situations by applying an external controllable field. Previous works have used optically guided matter or magnetically actuated materials, but similarly to soft robots, they are limited in spatial resolution or strength. Here we propose combining a low temperature thermoplastic polymer Polycaprolactone (PCL) with ferromagnetic powder particles (Fe). Focused light can heat this compound at specific locations and make it malleable. These heated spots can be actuated by external magnetic fields. Once the material cools down, this process can be repeated, or reversed. The compound can be actuated contact-less in the form of 3D slabs, 2D sheets, and 1D filaments. We show applications for reversible tactile displays and manipulation of objects. The laboratory team has characterised the density, weight, magnetic attraction, magnetic force, phase change, thermal and electrical conductivity and heat difusión (spread point test) for smart ferromagnetic compounds of different mixture proportions. The main advantages of this smart matter optomagnetic are the high spatial resolution of light and the strong force of magnetic attraction whilst mechanical properties of polymers are practically conserved. Due to the low temperature required and the possibility to use infrared or electromagnetic induction to heat the compound, the smart material can be used in air, water, or inside biological tissue. Eventually, Smart materials will enrich collaborative movements, such as grab and hold, and more complex ones, as reshaping and reassembling.