Resultados de investigación

The dataset contains all the Mumax3 scripts and data used for the writing of the work entitled "Nucleation of magnetic textures in stripe domain bifurcations for reconfigurable domain wall racetracks" in order to support for the repeatability of the work and further analysis., Victoria Vega Fernández acknowledges support from the Severo Ochoa Predoctoral Fellowship Program (nos. PA-22-BP21- 124). This work has been supported by Spanish MCIN/AEI/10.13039/501100011033/ FEDER,UE under grant PID2022-136784NB and by Agencia SEKUENS (Asturias) under grant UONANO IDE/2024/000678 with the support of FEDER funds.

Data from the article "O. Rodriguez-Prieto, A. Mycroft, F. Ortin. An Efficient and Scalable Platform for Java Source Code Analysis using Overlaid Graph Representations. IEEE Access (8), pp. 72239-72260, 2020. https://doi.org/10.1109/ACCESS.2020.2987631", Although source code programs are commonly written as textual information, they enclose syntactic and semantic information that is usually represented as graphs. This information is used for many different purposes, such as static program analysis, advanced code search, coding guideline checking, software metrics computation, and extraction of semantic and syntactic information to create predictive models. Most of the existing systems that provide these kinds of services are designed ad hoc for the particular purpose they are aimed at. For this reason, we created ProgQuery, a platform to allow users to write their own Java program analyses in a declarative fashion, using graph representations. We modify the Java compiler to compute seven syntactic and semantic representations, and store them in a Neo4j graph database. Such representations are overlaid, meaning that syntactic and semantic nodes of the different graphs are interconnected to allow combining different kinds of information in the queries/analyses. We evaluate ProgQuery and compare it to the related systems. Our platform outperforms the other systems in analysis time, and scales better to program sizes and analysis complexity. Moreover, the queries coded show that ProgQuery is more expressive than the other approaches. The additional information stored by ProgQuery increases the database size and associated insertion time, but these increases are significantly lower than the query/analysis performance gains obtained., This work has been partially funded by the Spanish Department of Science, Innovation and Universities: project RTI2018-099235-B-I00. The first and third authors have also received funds from the University of Oviedo through its support to official research groups (GR-2011-0040).

This dataset is directly associated with the paper “Multiobjective cooperative multi-fitness in workflow scheduling problem” (ICAE 2025) and contains all the data required to reproduce the experimental evaluation reported therein., This dataset contains the input data, experimental configurations and results used in the experimental evaluation of multiobjective workflow scheduling algorithms reported in the associated ICAE 2025 publication. It includes scientific workflow benchmarks, infrastructure descriptions, algorithm configuration files, execution scripts and both raw and aggregated experimental results. The dataset covers multiple experimental scenarios corresponding to different optimisation algorithms and configurations. The dataset has been archived to support transparency, reproducibility and reuse of the experimental results., This research has been supported by the Spanish Government under research Grants TED2021-131938B-I00 and PID2022-141746OB-I00, and by the Principality of Asturias under research Grant GRU-GIC-24-018.

Dataset 01: ZIP file containing the near field radiated by the horn antenna (more precisely, the S_21 parameter, which is proportional to the measured electric field). The ZIP file has 201 *.txt files, one *.txt file per frequency (the frequency value, in MHz, is indicated on the name of each *.txt file), Dataset 02: ZIP file containing the field scattered by the targets in the imaging domain (see the image “PictureSetup.png”). The ZIP file has 201 *.txt files, one *.txt file per frequency (the frequency value, in MHz, is indicated on the name of each *.txt file), This dataset corresponds to the measurements of a monostatic microwave imaging system, collected using the facility described in [1]. The first dataset, "Escatt_meas.mat", corresponds to the field scattered by the targets shown in the picture. Two targets were considered: a 18 cm long × 14 cm diameter metallic can, and a 18 cm diameter and 4 cm thick plastic disk, placed 22 cm above the metallic floor of the facility. The size of the scattered field acquisition domain was Lx × Ly = 65 cm × 40 cm, discretized every δx,y = 10 mm (λ/2 at the center frequency of 15 GHz), and placed 1 m above the floor of the measurement facility. The Tx and Rx antennas were two Standard Gain Horn (SGH) horn antennas [2]. The second dataset, "Erad_horn.mat" is the near field radiated by the Tx and Rx Standard Gain Horn (SGH) antennas in the 12-18 GHz frequency band. The field radiated by these antennas was measured in the same 12-18 GHz frequency band, in an acquisition domain discretized also every 10 mm, placed 50 cm above the SGH aperture. The field radiated by the SGH was processed using the backward transformation algorithm described in [3] to obtain the SGH aperture fields This dataset can be processed following the methodology described in [4],[5] (modified Delay-and-Sum algorithm) and in [6] (modified Fourier-based imaging algorithm). [1] A. Arboleya, Y. Alvarez, and F. Las-Heras, “Millimeter and submillimeter planar measurement setup,” in 2013 IEEE Antennas and Propagation Society International Symposium (APSURSI), 2013, pp. 1–2. [2] (2022, 8) Specifications of the standard gain horn antenna SGH 639 from Narda. [Online]. Available: https://nscainc.com/wp-content/uploads/pdf/NARDA_640.pdf [3] J. Hanfling, G. Borgiotti, and L. Kaplan, “The backward transform of the near field for reconstruction of aperture fields,” in 1979 Antennas and Prop. Society Intl. Symposium, vol. 17, 1979, pp. 764–767. [4] Y. Alvarez Lopez and F. Las-Heras, “On the use of an equivalent currents-based technique to improve electromagnetic imaging,” IEEE Transactions on Instrumentation and Measurement, vol. 71, pp. 8004113, 2022. [5] Y. Alvarez Lopez, J. Laviada, A. Arboleya, and F. Las-Heras, "A backpropagation imaging technique for subsampled synthetic apertures," IEEE Transactions on Instrumentation and Measurement, vol. 72, pp. 4502316, 2023. [6] Y. Alvarez López and F. Las-Heras Andrés, "Improved Methods for Fourier-based Microwave Imaging," Sensors, Vol. 23, pp. 9250, 2023., Ministerio de Ciencia, Innovación y Universidades of Spain, Agencia Estatal de Investigación of Spain, and FEDER PID2021-122697OB-I00 (“METAIMAGER”)

Data documentation for: "Macroencapsulated phase change material assessment for envelope applications: effect of low temperature variation rates and actual size", This work was supported by the Spain’s Ministry of Universities (FPU21/05062) and Spain’s Ministry of Science and Innovation and through Research Projects PID2021-128056OA-I00, PID2020-113558RB-C41, TED2021-131976B-I00 and RED2022-134219-T; and Foundation for the Promotion in Asturias of Applied Scientific Research and Technology through project SV-PA-21-AYUD 2021 51328.

La investigación explora las metodologías de las corporaciones educativas oficiales, como centros de formación profesional y escuelas de personas adultas; y por primera vez, la investigación aborda la formación realizada por las empresas. PALABRAS CLAVE: educación de adultos; formación en empresa; proyecto europeo; desarrollo profesional; metodología descriptiva., Comisión Europea Convocatoria de Propuestas 2019 (DOUE C384/4 de fecha 24.10.2018) EAC/A03/2018 (2018/C 384/04).

The hologram was measured in 18039 spatial points. A frequency sweep of 1601 points from 50 to 70 GHz has been made at each spatial point. Data are given in a .mat file in a struct with 4 fields: grid: 18039 x 3 matrix. Coordinates (x, y, z) correspond to columns 1, 2 and 3 respectively. Units are [meters]. frequencies: 1601 x 1 vector with the swept frequencies. Units are [Hz] Hologram: 18039 x 1601 matrix. Each row corresponds to the hologram in the frequency domain. Units are [V/m]. reference: 1601 x 1 vector. static reference branch for the swept frequencies. Units are [V/m]., Amplitude of the Field acquisition described in: A. Arboleya et al., "Freehand System for Probe-Fed Antenna Diagnostics by Means of Amplitude-Only Acquisitions," in IEEE Transactions on Instrumentation and Measurement, vol. 73, pp. 1-4, 2024, Art no. 8002004, doi: 10.1109/TIM.2024.3369150., 10.13039/501100011033-Ministerio de Ciencia e Innovación of Spain (MICIN), Agencia Estatal de Investigación of Spain (AEI), and the European Union NextGenerationEU/ Plan de Recuperación, Transformación y Resiliencia (Grant Number: TED2021-131975AI00/AEI/10.13039/501100011033 (ANTHEM5G)) 10.13039/501100008530-MICIN, AEI, and Fondo Europeo de Desarrollo Regional (FEDER) (Grant Number: PID2021-122697OB-I00/MCIN/AEI/10.13039/501100011033 (META-IMAGER)) 10.13039/100011941-Gobierno Principado de Asturias/FEDER (Grant Number: AYUD/2021/51706)

Esta investigación de carácter descriptivo analiza en qué medida una muestra aleatoria de 136 aplicaciones de software educativo orientado a niveles iniciales se corresponde con los planteamientos educativos y los rasgos clásicos de una unidad didáctica.

This paper presents the design and implementation of a photovoltaic energy harvesting system aimed at charging cement-based structural batteries, with the goal of enabling energy-autonomous infrastructures. The proposed architecture employs a tailored DC/DC power converter optimized for low-power, high-impedance energy storage devices embedded in concrete. The converter integrates Maximum Power Point Tracking (MPPT) algorithms to maximize energy extraction from the solar source. However, due to the unconventional electrochemical characteristics of cement-based batteries—namely, high and variable internal resistance, low charge acceptance, and pronounced self-discharge—standard MPPT operation may lead to overstress or inefficient charging. To address this, the control scheme dynamically limits MPPT operation based on real-time monitoring of the voltage across the terminals and the charge current, thus ensuring safe and adaptive energy transfer. The batteries used in the storage system are based on conductive concrete with iron chips and nickel galvanized steel electrodes. The monitoring of the battery status and the maximum power point tracking (MPPT) is based on a dsPIC33EV256GM102 low-cost microcontroller. Additionally, a monitoring system for operating conditions and processed energy is integrated, with data displayed using an ESP32 SoC circuit and a mobile application. The system demonstrates stable and effective power delivery under variable irradiance conditions, confirming its suitability for long-term deployment in smart civil infrastructure © 2017 Elsevier Inc. All rights reserved.