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State-Space Model of Quasi-Z-Source Inverter-PV Systems for Transient Dynamics Studies and Network Stability Assessment
(MDPI, 2021-07-09)
Photovoltaic (PV) power systems are increasingly being used as renewable power generation sources. Quasi-Z-source inverters (qZSI) are a recent, high-potential technology that can be used to integrate PV power systems into ...
The effect of volumetric (3D) tactile symbols within inclusive tactile maps
(Elsevier, 2015-05)
Point, linear and areal elements, which are two-dimensional and of a graphic nature, are the morphological elements employed when designing tactile maps and symbols for visually impaired users.
However, beyond the ...
Blends of Poly(3-Hydroxybutyrate-co-3-Hydroxyvalerate) with Fruit Pulp Biowaste Derived Poly(3-Hydroxybutyrate-co-3-Hydroxyvalerate-co-3-Hydroxyhexanoate) for Organic Recycling Food Packaging
(MDPI, 2021-04-04)
In the present study, a new poly(3-hydroxybutyrate-co-3-hydroxyvalerate-co-3-hydroxyhexanoate) [P(3HB-co-3HV-co-3HHx)] terpolyester with approximately 68 mol% of 3-hydroxybutyrate (3HB), 17 mol% of 3-hydroxyvalerate (3HV), ...
Evaluation of Thermoelectric Generators by I-V Curves
(Springer, 2015-11)
A recent theoretical study proposes a new way to evaluate thermoelectric devices by measuring two I–V curves—one obtained under a constant temperature difference and the other obtained for a constant thermal input. We ...
Sistema de gestión de energía para microrredes basado en control predictivo
(Publicaciones de Ingeniería, Escuela Técnica Superior de Ingeniería, 2015)
En este artículo se presenta un sistema de gestión de energía para microrredes a partir de un control Predictivo basado en Modelos (MPC), el cual tiene como tarea la optimización de las operaciones de una microrred, al ...
On the use of ball milling to develop PHBV-graphene nanocomposites (I)-Morphology, thermal properties, and thermal stability
(© 2015 Wiley Periodicals, Inc., 2015-03)
In the first part of this work, novel nanocomposites based on poly (3-hydroxybutyrate co-3-hydroxyvalerate) (PHBV) and functionalized graphene nanosheets (FGS) were prepared through ball milling. As revealed by morphological ...
Superparamagnetic [sic] nanofibers by electrospinning
(Royal Society of Chemistry, 2016)
The preparation of superparamagnetic thin fibers by electrospinning dispersions of nanosized magnetite (Fe3O4, SPIO/USPIO) in a PMMA/PEO polymer solution is reported. The saturation magnetization and coercivity were not ...
Power flow control using a DC-DC MMC for HVdc grid connected wind power plants
(IEEE, 2015)
This paper proposes the use of a transformer-less
DC-DC Modular Multilevel Converter (MMC) topology, based
on cascaded H-bridge converters, for power flow control in High
Voltage Direct Current (HVDC) grids used to ...
Metodología de reproducción gráfica de las portadas del Palacio Condal de Oliva
(Asociación de profesores de expresión gráfica aplicada a la edificación (APEGA), 2013)
Entre 1917 Y 1920 el arquitecto danés Egil Fischer con la ayuda de su discípulo Vilhem Lauritzen realizó un importante levantamiento gráfico del Palacio Condal de Oliva con la finalidad de desmontar sus elementos más ...
Optimal Sampling Pattern for the Free Final Time Linear Quadratic Regulator
(Institute of Electrical and Electronics EngineersIEEE, 2021-04-20)
The optimal sampling problem is the selection of the optimal sampling instants together with the optimal control actions such that a given cost function is minimized. In this article, we solve the optimal sampling problem ...