Search results for "Nuclear engineering"
showing 10 items of 533 documents
Competencias TIC del profesorado de música de ESO y Bachillerato
2016
La irrupción de las TIC, junto a pedagogías que enfatizan métodos de aprendizajes activos, participativos y centrados en el alumno, no ha supuesto —en la mayoría de casos— un cambio en el paradigma educativo; sigue vigente aún en nuestras aulas el modelo tradicional conductista, alejado de las necesidades e intereses del alumno. Este hecho se manifiesta incluso en las materias «a priori» más atractivas y «cercanas» a los estudiantes, como son las asignaturas que conforman el área de Educación Musical. En este trabajo se analiza el grado de competencia TIC del Profesorado de Música en los niveles de Enseñanza Secundaria Obligatoria y Bachillerato. Para ello, se ha elaborado un cuestionario…
Aprendizaje mediado por tecnología en alumnado con TEA. Una revisión bibliográfica
2019
En los últimos años, las tecnologías se han propagado muy fácilmente en todos los contextos sociales, dando como resultado cambios significativos en el estilo de vida de cada individuo. En este proceso de cambio tecnológico, ningún ámbito es ajeno, mucho menos el sistema escolar y esto tiene consecuencias para los estudiantes con discapacidad. Por lo tanto, gracias al apoyo tecnológico, hoy los estudiantes con necesidades educativas especiales tienen más oportunidades para la inclusión social en la escuela. Este trabajo se basa en una revisión crítica de la literatura científica, publicada en la última década, sobre el tema del uso de la tecnología en estudiantes con trastorno del espectro …
Revisión y análisis de investigación publicada sobre intervención gamificada en discapacidad intelectual
2018
En la última década, los sistemas tecnológicos y las dinámicas lúdicas han invadido el ámbito educativo atendiendo, en ciertos casos, a la diversidad del aula en su conjunto. No obstante, son escasas las investigaciones centradas en estudiar el uso de la tecnología y de la gamificación en el alumnado con discapacidad intelectual y, especialmente, sus efectos sobre la inclusión. En este trabajo se realiza una revisión bibliográfica para analizar los avances en la investigación sobre este tema, así como los beneficios pedagógicos que se han registrado en las estrategias gamificadas utilizadas. Los resultados obtenidos son bastante alentadores, ya que conciben el juego como una herramienta úti…
Failure Rate Measurement on Silicon Diodes Reverse Polarized at High Temperature
2017
This paper calculates the failure rate on reversed polarized silicon diodes with the aim to justify, experimentally, the rules of the European Space Agency (ESA) which are referred to the component life’s extension, the reliability increase and the end of life performance enhancement, by using oversized devices (derating rules). In order to verify the derating rules, 80 silicon diodes are used, which are reverse polarized in a high temperature environment. The diodes are divided in 4 groups of 20 diodes, applying a different voltage to each group, in order to relate the failure rate to the applied derating rule. The experiment described in this paper is developed using a temperature acceler…
Recent Progress in the WCLL Breeding Blanket Design for the DEMO Fusion Reactor
2018
The water-cooled lithium-lead (PbLi) breeding blanket is one of the candidate systems considered for the implementation in the European Demonstration Power Plant (DEMO) nuclear fusion reactor. This concept employs PbLi liquid metal as tritium breeder and neutron multiplier, water pressurized at 15.5 MPa as the coolant, and EUROFER as the structural material. The current design is based on the single module segment approach and follows the requirements of the DEMO-2015 baseline design. The module is constituted by a basic toroidal-radial cell that is recursively repeated along the poloidal direction where the liquid metal flows along a radial-poloidal path. The heat generated by the fusion r…
Toolbox for Distance Estimation and Cluster Validation on Data With Missing Values
2022
Missing data are unavoidable in the real-world application of unsupervised machine learning, and their nonoptimal processing may decrease the quality of data-driven models. Imputation is a common remedy for missing values, but directly estimating expected distances have also emerged. Because treatment of missing values is rarely considered in clustering related tasks and distance metrics have a central role both in clustering and cluster validation, we developed a new toolbox that provides a wide range of algorithms for data preprocessing, distance estimation, clustering, and cluster validation in the presence of missing values. All these are core elements in any comprehensive cluster analy…
A Review of Biosensors for Non-Invasive Diabetes Monitoring and Screening in Human Exhaled Breath
2019
Exhaled breath acetone has been identified as a diabetes biomarker for non-invasive diagnosis. Its detection using biosensors features has many advantages over the conventional means. This paper reviews the recent literature on the detection of exhaled breath acetone and acetone vapor of diabetic interest. The biosensors have been classified based on their transduction methods. The performance characteristics of the biosensors have been explored for comparison. The future trends are also highlighted.
Status and development of the MARA low-energy branch
2018
The MARA Low-Energy Branch is under development at the Accelerator Laboratory of the University of Jyvaskylä. The facility will be employed for laser ionisation and spectroscopy studies and for mass measurements of nuclei close to the proton drip line. This article presents an updated status of the ongoing development of the different parts of this facility, including the buffer gas cell, the ion transport system, the laser system and the detector stations. peerReviewed
Effect of Stacking Sequence and Sodium Bicarbonate Treatment on Quasi-Static and Dynamic Mechanical Properties of Flax/Jute Epoxy-Based Composites
2019
The present paper deals with the investigation of quasi-static and dynamic mechanical response of epoxy-based composites reinforced with flax and/or jute plain weave fabrics. In order to evaluate the influence of the stacking sequence, two monolithic laminates reinforced with flax or jute fibers and two hybrid flax/jute laminates were manufactured through the vacuum infusion technique. Furthermore, an eco-friendly and cost-effective surface treatment based on fiber soaking in a sodium bicarbonate solution was employed to improve the fiber-matrix adhesion. The mechanical characterization (by means of quasi-static flexural, dynamic mechanical thermal analysis and Charpy impact tests) allowed …
A single key-odorant accounts for the pheromonal effect of rabbit milk : Further test of the mammary pheromone's activity against a wide sample of vo…
2003
In the rabbit, lactating females emit a volatile compound in milk, the mammary pheromone (MP), that triggers rooting for the nipple and its grasping in pups. Previous studies have shown that the MP seems to act selectively, in terms both of intensity and quality. Here, we aimed to add new evidence to these properties of the MP. Newborn rabbits (n=825) were submitted to an oral activation test allowing to measure their searching/grasping responses towards different stimuli. In Experiment 1 we assessed whether pups respond to the MP in an intensity-dependent manner. In Experiment 2 we assessed the activity of 20 volatiles previously identified in rabbit milk, other than the MP, which were nev…