1,379 research outputs found

    The ASSET project as a training tool for energy transition

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    [EN] The ASSET project aims to provide a holistic and scalable solution for research, innovation and education by creating functional networks. These networks are intended to be created between energy companies, universities, training actors, energy and environmental authorities, policy makers and, more generally, citizens who are sensitive to environmental issues and the quality of energy transition processes. The ASSET project delivers the framework and the tools to create and share knowledge and competences needed to tackle the energy transition by supporting training. As a highlight of this approach to education, a strong interdisciplinary component oriented to social sciences is added in an area with an exclusive technological vocation. This transition seeks to push towards a low-carbon society in order to make the energy sector sustainable. To reach this goal, ASSET intends to strengthen the skills of sector operators, to cultivate new talents with multidisciplinary skills, and to intensify research and network industry. Therefore, the final target is to promote innovation and strengthen understanding of the importance of reducing carbon emissions. Over the course of the project, 23 learning graph models and more than 40 educational programs are being developed, in addition to a portfolio of challenges and case studies on the subject. The actors involved will be able to search for the programs available - online and on-campus - on the ASSET website and if a search is unsuccessful, a request can be sent for the creation of content necessary for their target market. The main tools that have been developed through the ASSET project are; the Learning Graph tool, the Marketplace tool and the EMMA platform. The Learning graph tool allows for the creation and sharing of learning structures, as well as the use of existing study materials. The Marketplace tool allows the searching through the available training offer, to request courses on demand, or to offer own training programmes. Finally, the EMMA platform offers a wide range of MOOC (Massive Online Open Courses), mainly in English and with the possibility of being translated into several languages. Universitat PolitĂšcnica ValĂšncia (UPV) is participating in the project as one of the academic actors that is developing courses and MOOCs in the area of Energy Storage. In this way, the UPV contributes to the identification of learning needs, the application of the ASSET method and tools to its teaching material, and the delivery of this teaching material. Specifically, the course being developed is called "Hydrogen as an Energy Vector". The course provides the fundamentals of hydrogen technology, using it to store energy and further develop the concept of its use as an energy vector. The course follows the blended format, combining online elements, through a MOOC (EMMA platform) and face-to-face teaching carried out at the university facilities. In the paper, we will present the main ASSET tools, the lessons learned in the development of course materials during the lifetime project and the analysis of the results of this experience.This work was supported by the European Commission though the project A Holistic And Scalable Solution For Research, Innovation And Education In Energy Transition (European Union's Horizon 2020 research and innovation programme under grant agreement number 837854).ZĂșñiga Saiz, P.; SĂĄnchez-Diaz, C. (2021). The ASSET project as a training tool for energy transition. IATED Academy. 4354-4363. https://doi.org/10.21125/inted.2021.08884354436

    Randomization tests in language typology

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    Two of the major assumptions that common statistical tests make about random sampling and distribution of the data are not tenable for most typological data. We suggest to use randomization tests, which avoid these assumptions. Randomization is applicable to frequency data, rank data, scalar measurements, and ratings, so most typological data can be analyzed with the same tools. We provided a free computer program, which also includes routines that help determine the degree to which a statistical conclusion is reliable or dependent on a few languages in the sampl

    Bandgap and effective mass of epitaxial cadmium oxide

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    The bandgap and band-edge effective mass of single crystal cadmium oxide, epitaxially grown by metal-organic vapor-phase epitaxy, are determined from infrared reflectivity, ultraviolet/visible absorption, and Hall effect measurements. Analysis and simulation of the optical data, including effects of band nonparabolicity, Moss-Burstein band filling and bandgap renormalization, reveal room temperature bandgap and band-edge effective mass values of 2.16±0.02 eV and 0.21±0.01m0 respectively

    Detailed Interstellar Polarimetric Properties of the Pipe Nebula at Core Scales

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    We use R-band CCD linear polarimetry collected for about 12000 background field stars in 46 fields of view toward the Pipe nebula to investigate the properties of the polarization across this dark cloud. Based on archival 2MASS data we estimate that the surveyed areas present total visual extinctions in the range 0.6 < Av < 4.6. While the observed polarizations show a well ordered large scale pattern, with polarization vectors almost perpendicularly aligned to the cloud's long axis, at core scales one see details that are characteristics of each core. Although many observed stars present degree of polarization which are unusual for the common interstellar medium, our analysis suggests that the dust grains constituting the diffuse parts of the Pipe nebula seem to have the same properties as the normal Galactic interstellar medium. Estimates of the second-order structure function of the polarization angles suggest that most of the Pipe nebula is magnetically dominated and that turbulence is sub-Alvenic. The Pipe nebula is certainly an interesting region where to investigate the processes prevailing during the initial phases of low mass stellar formation.Comment: 20 pages, 23 figures, Accepted for The Astrophysical Journa

    Qualytech

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    Este reporte PAP trata sobre un proyecto de aplicación profesional dentro de la empresa Qualytech, empresa en la que llevo un tiempo y con la cual trabajaré en un proyecto especialmente para el PAP. En el reporte se verån explicadas todas las actividades y competencias requeridas para poder cumplir con mi rol dentro de la empresa. Se mostrarå el progreso que tendré dentro de la empresa, dejando fuera todo lo que ya he aprendido, si no que me enfocaré en aprender cosas nuevas y qué mås puedo aportar a la empresa.ITESO, A.C

    Fabrication and Optical Properties of a Fully Hybrid Epitaxial ZnO-Based Microcavity in the Strong Coupling Regime

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    In order to achieve polariton lasing at room temperature, a new fabrication methodology for planar microcavities is proposed: a ZnO-based microcavity in which the active region is epitaxially grown on an AlGaN/AlN/Si substrate and in which two dielectric mirrors are used. This approach allows as to simultaneously obtain a high-quality active layer together with a high photonic confinement as demonstrated through macro-, and micro-photoluminescence ({\mu}-PL) and reflectivity experiments. A quality factor of 675 and a maximum PL emission at k=0 are evidenced thanks to {\mu}-PL, revealing an efficient polaritonic relaxation even at low excitation power.Comment: 12 pages, 3 figure

    Strain evolution in GaN Nanowires: from free-surface objects to coalesced templates

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    Top-down fabricated GaN nanowires, 250 nm in diameter and with various heights, have been used to experimentally determine the evolution of strain along the vertical direction of 1-dimensional objects. X-ray diffraction and photoluminescence techniques have been used to obtain the strain profile inside the nanowires from their base to their top facet for both initial compressive and tensile strains. The relaxation behaviors derived from optical and structural characterizations perfectly match the numerical results of calculations based on a continuous media approach. By monitoring the elastic relaxation enabled by the lateral free-surfaces, the height from which the nanowires can be considered strain-free has been estimated. Based on this result, NWs sufficiently high to be strain-free have been coalesced to form a continuous GaN layer. X-ray diffraction, photoluminescence and cathodoluminescence clearly show that despite the initial strain-free nanowires template, the final GaN layer is strained
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