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Now showing items 2141-2150 of 2154
Synthesis of waterborne polyurethane-urea dispersions with chain extension step in homogeneous and heterogeneous media
(Elsevier, 2016-05-13)
[EN Hypothesis: The possibility of tailoring the final properties of environmentally friendly waterborne
polyurethane and polyurethane-urea dispersions and the films they produce makes them attractive for
a wide range ...
Systematic modeling of photovoltaic modules based on artificial neural networks
(Elsevier, 2016-06-03)
Using accurate models of photovoltaic modules is of major importance to make realistic simulations of these systems in order to study their elements for a better performance. In this paper we address the problem of the ...
Synthesis and characterisation of polyurethane elastomers with semi-products obtained from polyurethane recycling.
(2016-10-01)
In this work polyurethane elastomers were synthesised by using different mixtures of a petrochemical and glycerolysate polyols and 4,4-diphenylmethane diisocyanate (MDI). Glycerolysate polyol was produced from polyurethane ...
Formal Aspects in SDH for Children in Spanish Television: A Descriptive Study
(Ediciones Complutense, 2016)
[EN] The comprehension of a subtitle goes far beyond the understanding of the meaning of the
words it comprises. Formal aspects of subtitles for the d/Deaf and the hard-of-hearing (SDH) can be
crucial in the cognitive ...
Vigilancia epidemiológica y ambiental de criptosporidiosis en Gipuzkoa
(Sociedad Española de Salud Ambiental, 2016-12-15)
La criptosporidiosis es una parasitosis de distribución mundial causada por un protozoo del género Cryptosporidium. La infección se produce tras la ingestión de ooquistes excretados en las heces de animales o humanos. ...
Estado actual y avances en las tecnologías de ensamblado de los módulos de potencia asociados al vehículo eléctrico
(2016-07-06)
Las tecnologías de ensamblado empleadas en el diseño de los módulos de potencia son de suma importancia y afectan directamente al rendimiento, fiabilidad, eficiencia y coste
del inversor.
El presente artículo trata de ...
Loss and stress reduction in VSI devices for EVs using general discontinuous PWM
(2016-07-06)
In this paper, a new carrier based discontinuous pulse width modulation (DPWM) strategy for voltage source inverter (VSI) is presented in order to use in electric vehicles (EV). The basic idea of DPWM techniques, is clampimg ...
Fundamentos para la paralelización de IGBTs
(2016-07-06)
Las aplicaciones de electrónica de potencia requieren cada vez mayores rangos de tensión y corriente que no pueden ser alcanzados a través de dispositivos discretos. Por este motivo, surge la necesidad de realizar diseños ...
Estado de la tecnología de dispositivos SiC y GaN
(2016-07-06)
Los dispositivos de silicio son fundamentales en los convertidores de potencia. Aunque existen nuevos desarrollos con este material, muchas veces el silicio tiene límites físicos que son difíciles de superar. Por esta ...
Linguistic Accessibility for Small Language Cinema
(IGI Global, 2016)
Audiovisual accessibility is considered as a basic right. In a world where audiovisual material is more and more present, several measures have been taken in order to facilitate the access to it by people living with sensory ...