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Power Balancing in Cascaded H-Bridge and Modular Multilevel Converters Under Unbalanced Operation: A Review
(IEEE, 2021)
Multilevel Voltage-Source Converters (VSC) based on modular structures are envisioned as a prominent alternative for grid and industry applications. Foremost among these are the Cascaded H-Bridge (CHB) and the Modular ...
Ofermod y heroísmo humilde: sobre la interpretación de Tolkien
(Universidad de La Laguna, 2021)
El presente trabajo estudia la interpretación del heroísmo germano por Tolkien tomando como punto de partida su ensayo-poema «The Homecoming of Beorhtnoth Beorhthelm’s Son» sobre La Batalla de Maldon. A través de textos ...
Generating metamorphic relations for cyber-physical systems with genetic programming: an industrial case study
(ACM, 2021)
One of the major challenges in the verification of complex industrial Cyber-Physical Systems is the difficulty of determining whether a particular system output or behaviour is correct or not, the socalled test oracle ...
Análisis de las creencias sobre la concepción de la educación física de los futuros docentes durante la formación universitaria
(Juan Carlos Muñoz Díaz, 2021)
El objetivo de este estudio consiste en analizar cómo influyen las creencias previas sobre la Educación Física en los futuros docentes de esa área. Así mismo, se pretende valorar en qué medida la formación universitaria ...
Novel High Accuracy Resolver Topology for Space Applications
(MDPI, 2021)
In recent years, the space industry has experienced a significant change mainly due to the incursion of private companies, which has shaken up the sector. This new situation allows for a reduction regarding the reliability ...
ETHAZI berrikuntza-ereduan ari diren Lanbide Heziketako irakasleen hezkuntzari buruzko kontzepzioen garapenaren azterketa Covid-19 testuinguruan
(Udako Euskal Unibertsitatea (UEU), 2021)
Geroz eta azkarragoak eta konplexuagoak diren aldaketa ekonomiko, produktibo eta teknologikoei
erantzuteko, Euskal Autonomi Erkidegoko Lanbide Heziketako sisteman ETHAZI hezkuntzaberrikuntza eredua hedatzen ari da. Eredu ...
An analytical approach to calculate stress concentration factors of machined surfaces
(Elsevier Ltd., 2021)
Machining operations affect the properties of the final surface layer, and these can impact on its functional per- formance, particularly on fatigue behaviour. Among the properties of the machined surface, surface topography ...
Platform Coops Now!: A Team Entrepreneurship Capacity Building Program to create Platform Coops
(Universidad del País Vasco (UPV)/Euskal Herriko Unibertsitatea (EHU), 2021)
Traditional labour relationships have been disrupted due to the digital platforms based businesses. This article aims on the one hand to share the consequences the sharing economy has generated for workers, and how MONDRAGON’s ...
A Coloured Petri Net- and D* Lite-Based Traffic Controller for Automated Guided Vehicles
(MDPI, 2021)
Mobile robots, such as Automated Guided Vehicles (AGVs), are increasingly employed in automated manufacturing systems or automated warehouses. They are used for many kinds of applications, such as goods and material handling. ...
The effect of cross-section geometry on crushing behaviour of 3D printed continuous carbon fibre reinforced polyamide profiles
(Elsevier, 2021)
The present study has analysed the effect of cross-section geometry and the printing pattern of continuous carbon reinforced polyamide on the axial and radial crushing behaviour. Each geometry and printing pattern generated ...
Diseño como habilitador para el cambio: modelo para la medición del impacto del diseño en empresas de serviciosDesign as an enabler of change: a model for measuring the impact of design in service organizations
(AEIPRO, 2021)
Design is a human centred creative approach that transforms and improves organizational capabilities for innovation and strategic decision-making. The aim of this research is to identify the impact of design, in particular ...
Quasi-static and dynamic crush behaviour of 3D printed thin-walled profiles reinforced with continuous carbon and glass fibres
(Elsevier, 2021)
The present paper investigates the suitability of cFF printed material and technologies for crashworthiness applications. To this end, the quasi-static and dynamic crush behaviour of 3D printed thin-walled hollow profiles ...
Bemrosetta: An open-source hydrodynamic coefficients converter and viewer integrated with Nemoh and Foamm
(EWTEC, 2021)
Boundary Element Method (BEM) solvers are extensively used to obtain the hydrodynamic coefficients required to model hydrodynamic forces in oating marine structures. BEM solvers require the discretization of the submerged ...
Code-to-code nonlinear hydrodynamic modelling verification for wave energy converters: Wec-sim vs. nlfk4all
(EWTEC, 2021)
In the wave energy conversion field, simulation tools are crucial for effective converter and controller design, but are often prone to become very casespecific, in both structure and parameter selection. This is due to ...
Simulation of Cold Forging Processes Using a Mixed Isotropic-Kinematik Hardening Model
(Springer, 2021)
Cold forging is a manufacturing process where a bar stock is inserted into a die and squeezed with a second closed die. It is one of the most widely used chipless forming processes, often requiring no machining or additional ...
High-Speed Material Characterization Using an Instrumented Forging Hammer
(Springer, 2021)
Hammer forging is a widely employed manufacturing process to produce parts with excellent mechanical properties. Although the rheological behavior and the microstructural transformation phenomena of metals under hammer ...
High magnetization FeCo nanoparticles for magnetorheological fluids with enhanced response
(Royal Society of Chemistry, 2021)
We present results concerning the fabrication of a new magnetorheological fluid with FeCo magnetic nanoparticles (NPs) as magnetic fillers. These NPs have been fabricated by using the chemical reduction technique and show ...
Industria eolikoko palen efizientzia aerodinamikoaren azterketa esperimentala baldintza ideal eta errealetan
(UEU, 2021)
The paradigm of renewable energies brings a number of challenges to be solved in a short-term period. In the case of wind energy, it turns necessary to relocate onshore wind-farms in both offshore coastal regions and urban ...
Hidrogeno tren baten diseinu eta operazioaren optimizazioa
(UEU, 2021)
This paper proposes an optimization methodology based on genetic algorithms for the design and operation of a hydrogen train. Indeed, the proposed approach optimizes the size of the hydrogen fuel cell, the size of the ...
SiC erdieroaleak energia eolikoan LCoEa hobetzeko
(UEU, 2021)
This research identifies the wind energy as the main renewable source. In order to improve its LCoE, SiC semiconductors are proposed, together with different voltage levels and topologies. After analyzing various configurations, ...