Este Objeto de Aprendizaje muestra las opciones que existen para modificar la estructura y el contenido de los campos de una tabla espacial utilizando el QGIS
The modification of Nafion membranes with polyaniline (PAni) has been studied as an alternative for reducing methanol crossover in direct methanol fuel cells (DMFC). The modification has been performed by directly polymerizing ...
Rosa-Ramírez, Harrison de la; Aldás-Carrasco, Miguel Fernando; Ferri, J.M.; López-Martínez, Juan; Samper, María-Dolores(John Wiley & Sons, 2020-11-20)
[EN] The modification of PLA by melt compound with gum rosin (GR) and pentaerythritol ester of GR (PEGR) was investigated by studying the mechanical and thermal performance, blends morphology, wettability, and water ...
[EN] Flat hybrid membranes composed of polyetherimide (PEI) as matrix and zeolitic imidazolate frameworks (ZIFs) as fillers at concentrations of 10 and 20 wt% were prepared. Apparent permeability coefficient and apparent ...
[EN] The treated polymer surfaces perform as a function of their chemical structure, type of exposure, i.e. plasma or UV radiation, exposure time and the affinity with water (contact angle). Additionally, the characterization ...
[EN] Silver nanoparticles were electrodeposited into the surface of a macroporous Ni electrode. The developed electrodes were characterized morphologically by confocal laser scanning microscopy and field emission scanning ...
España Giner, José Manuel; García Sanoguera, David; Sánchez Nacher, Lourdes; López Martínez, Juan; Balart Gimeno, Rafael Antonio(Wiley-Blackwell, 2012-12)
[EN] In this study, atmospheric plasma treatment has been used to modify the wetting properties of ethylene-methacrylic acid sodium ionomer. The effects of the plasma treatment on surface properties of this ionomer have ...
Moreno Chou, Ana Tsui; Llorca García, Carlos; Washburn, Scott; Bessa Jr., José Elievam; Hale, David K; García García, Alfredo(John Wiley & Sons, 2016)
[EN] The US Highway Capacity Manual (HCM) methodology is used in Spain to evaluate traffic operation and quality of service. The effect of passing manoeuvre on two-lane highway operational performance is considered through ...
Fernández Sáez, Javier; El Ouardi, Y.; Bonastre Cano, José Antonio; Molina, J. M.; Cases, Francisco(Elsevier, 2019)
[EN] The synthesis of reduced graphene oxide onto magnesium discs by electrochemical and chemical methods is presented in this work. The surface morphology and atomic composition were investigated using field emission ...
[EN] Students with learning disabilities and attention disorders in higher education are often described as individuals with invisible disorders. This perception may lead to misinterpreting and stereotyping of their ...
[EN] Introduction and objectives: An analysis was made of the effects of a radiofrequency-induced linear lesion during ventricular fibrillation and the capacity to capture myocardium through high-frequency pacing.
Methods: ...
[EN] A nanoclay/EVOH composite has been developed to retard the release of a volatile antimicrobial from an EVOH film with application in active packaging. Concretely, 2% of bentonite nanoclay was added to the EVOH-29 ...
Budzko, Dzmitry; Cordero Barbero, Alicia; Torregrosa Sánchez, Juan Ramón(Springer, 2014-11)
The paper is devoted to description of certain ways of extending the domain of
convergence of Newton’s method. This paper is a survey of contributions of representatives
of Soviet and Russian mathematical school, namely, ...
Del Niño Jesús, A.; Muños López, I.; Josa, A.; Espinosa, E.; Gracia, M.; García Martínez, M.P.; Leuza, A.(World Rabbit Science. ICTA. UPV, 1997)
[EN] An evaluation is made of the influence which the
vesiculectomy may have on the ejaculate in the rabbit. To do this we
have studied three different factors in the semen, before and after the
operation: quality control ...
Lozano-Galant, Jose Antonio; Ruiz Ripoll, Lidia; Paya-Zaforteza I.; Turmo, José(VILNIUS GEDIMINAS TECH UNIV, SAULETEKIO AL 11, VILNIUS, LT-10223, LITHUANIA, 2014)
In current practice, the effects of the evolutionary erection of cable-stayed bridge superstructure are rarely included into the simulation of its tensioning process. In fact, stay forces in service are usually defined in ...
[EN] This paper presents a novel control strategy that provides active disturbance rejection predictive
control on constrained systems with no nominal identified model. The proposed loop relaxes the
modelling requirement ...
Pérez-Sánchez, Modesto; López Jiménez, Petra Amparo; Ramos, Helena M.(Springer-Verlag, 2018)
[EN] The development of hydraulic and optimization models in water networks
analyses to improve the sustainability and efficiency through the installation of micro or
pico hydropower is swelling. Hydraulic machines involved ...
[EN] To study the behaviour of nuclear power reactors it is necessary to solve the time dependent neutron
diffusion equation using either a rectangular mesh for PWR and BWR reactors or a hexagonal mesh for
VVER reactors. ...
Fernández Sáez, Javier; Del Río García, Ana Isabel; Molina Puerto, Javier; Bonastre Cano, José Antonio; Cases Iborra, Francisco Javier(Springer Verlag (Germany), 2015-03)
The electrochemical behavior of non-modified, Pt-modified, and Pt/polyaniline-modified carbon fiber textile electrodes was studied through a series of electrolyses, under potentiostatic conditions, on an amaranth/sulfuric ...
[EN] The applications of Newtonian dynamics in galactic scales have shown that the inverse square law is incompatible with the amount of visible mass in the form of stars and molecular clouds. This manifests as the rotational ...