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An Efficient and Robust Current Control for Polymer Electrolyte Membrane Fuel Cell Power System
Silaa, Mohammed Yousri; Derbeli, Mohamed; Barambones Caramazana, Oscar
; Napole, Cristian; Cheknane, Ali; González de Durana García, José María (MDPI, 2021-02-22)
Taking into account the restricted ability of polymer electrolyte membrane fuel cell (PEMFC) to generate energy, it is compulsory to present techniques, in which an efficient operating power can be achieved. In many ... -
An Efficient Approach for Solving Differential Equations in the Frame of a New Fractional Derivative Operator
; ; ; ; De la Sen Parte, Manuel; (MDPI, 2023-01-03)
Recently, a new fractional derivative operator has been introduced so that it presents the combination of the Riemann–Liouville integral and Caputo derivative. This paper aims to enhance the reproducing kernel Hilbert space ... -
An efficient evolutionary algorithm for the orienteering problem
Kobeaga Urriolabeitia, Gorka; Merino Maestre, María ; (Elsevier, 2017-09-06)
This paper deals with the Orienteering Problem, which is a routing problem. In the Orienteering Problem each node has a profit assigned and the goal is to find the route that maximizes the total collected profit subject ... -
An efficient implementation of kernel density estimation for multi-core and many-core architectures
; Sáenz Aguirre, Jon; ; (Sage, 2015-03-16)
Kernel density estimation (KDE) is a statistical technique used to estimate the probability density function of a sample set with unknown density function. It is considered a fundamental data-smoothing problem for use with ... -
An efficient LDU algorithm for the minimal least squares solution of linear systems
; ; ; Abasolo, Mikel (Elsevier, 2018-12-15)
The minimal least squares solutions is a topic of interest due to the broad range of applications of this problem. Although it can be obtained from other algorithms, such as the Singular Value Decomposition (SVD) or the ... -
An efficient portfolio approach towards ecosystem-based fisheries governance in EU
Lopetegui Buján, Itsaso; Del Valle Erquiaga, Miren Ikerne (Elsevier, 2022-10)
In the framework of multispecies fisheries governance, the main objective of this paper is to apply modern portfolio theory (MPT) to the North-East Atlantic European fisheries, including all the key commercial fish species ... -
An eight-season analysis of the teams’ performance in the Spanish LaLiga according to the final league ranking
Errekagorri Elezkano, Ibai; ; ; ; (PLoS, 2024)
This study aimed to analyse the performance of 5,518 collective observations of the Spanish LaLiga teams for eight consecutive seasons (from 2011–12 to 2018–19), considering the final league ranking. The teams were divided ... -
An electroactive and thermo-responsive material for the capture and release of cells
García Hernando, Maite; ; ; Basabe Desmonts, Lourdes ; ; Benito López, Fernando (Elsevier, 2021-06-05)
Non-invasive collection of target cells is crucial for research in biology and medicine. In this work, we combine a thermo-responsive material, poly(N-isopropylacrylamide), with an electroactive material, poly(3,4-ethyle ... -
An Embedded Stress Sensor for Concrete SHM Based on Amorphous Ferromagnetic Microwires
; ; ; ; Zhukov Egorova, Arkady Pavlovich; (MDPI, 2014-11)
A new smart concrete aggregate design as a candidate for applications in structural health monitoring (SHM) of critical elements in civil infrastructure is proposed. The cement-based stress/strain sensor was developed by ... -
An Emerging Nanozyme Class for à la carte Enzymatic-Like Activities based on Protein-Metal Nanocluster Hybrids
; ; ; ; López Cortajarena, Aitziber (Wiley, 2023-09)
In this study, the goal is to fabricate robust and highly efficient peroxidase-like nanozymes that can ultimately be assembled into films for their easy reuse in catalytic cycles. Nanozymes are designed by mimicking the ... -
An emotional path to ourselves.
(2019-11-11)Self-transcendence of the self has been approached theoretically and empirically in a variety of forms and can be experienced in the form of Self-Transcendent Emotions (STEs). These different emotional episodes orientate ... -
An Empirical Analysis of the Factors Influencing Social Entrepreneurship: A Gendered Approach
(Instituto de Economía Aplicada a la Empresa (Universidad del País Vasco UPV/EHU), 2021-05-19)[EN] Purpose: This study examines how entrepreneurial ecosystem factors (entrepreneurial finance, entrepreneurial education, physical and commercial infrastructure, culture, and R&D transfer activities) shape social ... -
An Empirical Comparative Study of Prediction Methods for Estimating Multipath Due to Signal Scattering from Wind Turbines on Digital TV Services
Angulo Pita, Itziar; De la Vega Moreno, David ; ; ; ; Angueira Buceta, Pablo ; Ordiales Basterrechea, Juan Luis (IEEE, 2011-04-29)
[EN] Several authors have theoretically studied the effect of wind turbines on the propagation of electromagnetic waves in the UHF band. The International Telecommunication Union also proposes a simplified model to ... -
An empirical comparison of the performance of alternative option pricing models
Rubio Irigoyen, Gonzalo; Ferreira García, María Eva; Gago, Mónica; León, Angel (University of the Basque Country, Department of Foundations of Economic Analysis II, 2002)
This paper presents a comparison of alternative option pricing models based neither on jump-diffusion nor stochastic volatility data generating processes. We assume either a smooth volatility function of some previously ... -
An empirical evaluation of techniques for parallel simulation of message passing networks
(1996-01-15)[EN]In the field of computer design, simulation is an essential tool to validate and evaluate architectural proposals. Conventional simulation techniques, designed for their use in sequential computers, are too slow if the ... -
An Empirical Study on Transmission Beamforming for Ultrasonic Guided-Wave Based Structural Health Monitoring
; ; ; Echaniz Marañón, Josu; (MDPI, 2020-03-06)
The development of reliable structural health monitoring techniques is enabling a healthy transition from preventive to condition-based maintenance, hence leading to safer and more efficient operation of different industries. ... -
An enactive and dynamical systems theory account of dyadic relationships
(Frontiers Research Foundation, 2014-05-30)Many social relationships are a locus of struggle and suffering, either at the individual or interactional level. In this paper we explore why this is the case and suggest a modeling approach for dyadic interactions and ... -
An enduring rapidly moving storm as a guide to Saturn’s Equatorial jet’s complex structure
Sánchez Lavega, Agustín María; ; Pérez Hoyos, Santiago ; Hueso Alonso, Ricardo ; ; ; Sanz Requena, J. F. ; Antuñano Martín, Arrate ; ; Garate López, Itziar ; Rojas Palenzuela, José Félix ; ; ; ; ; (Nature Publishing, 2016-11-08)
Saturn has an intense and broad eastward equatorial jet with a complex three-dimensional structure mixed with time variability. The equatorial region experiences strong seasonal insolation variations enhanced by ring ... -
An Energy Potential Estimation Methodology and Novel Prototype Design for Building-Integrated Wind Turbines
; Ulazia Manterola, Alain; ; ; (MDPI, 2019-05-27)
ROSEO-BIWT is a new Building-Integrated Wind Turbine (BIWT) intended for installation on the edge of buildings. It consists of a Savonius wind turbine and guiding vanes to accelerate the usual horizontal wind, together ... -
An engineered coccolith-based hybrid that transforms light into swarming motion
Lomora, Mihai; Larrañaga Espartero, Aitor; Rodríguez-Emmenegger, Cesar; Rodriguez, Brian; Dinu, Ionel Adrian; Sarasua Oiz, José Ramón ; Pandit, Abhay (Elsevier ; Cell Press, 2021-03-24)
[EN] Translating energy into swarming motion for miniature entities remains a challenge. This translation requires simultaneously breaking the symmetry of the system to enable locomotion and a coupling effect between ...