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Arnesano, Italy

Hechavarria L.,National Autonomous University of Mexico | Hechavarria L.,University Del | Mendoza N.,National Autonomous University of Mexico | Mendoza N.,CIMAV | And 3 more authors.
Solar Energy Materials and Solar Cells | Year: 2012

Photoelectrochromic (PEC) devices were assembled with an electrochemically deposited tungsten oxide (WO 3) thin film on transparent conductive glass (ITO) substrates, a composite polymeric electrolyte (PE), and a Ruthenium 535 sensitized TiO 2 solgel film deposited on ITO substrates. The polymeric electrolyte was prepared by the solgel method using a viscous polyethylene glycol (PEG, MW 600) and titanium isopropoxide as precursors in an acidic medium. A lithium salt (LiI) was added to the PEGTi complex for photoelectrochemical purposes. The color change of WO 3 based PEC devices under 100 mW/cm 2 illumination at short circuit conditions indicates that the introduction of titanium complex inside the polymeric electrolyte accelerates the coloring speed from 26 to 9 s. Electrochemical impedance spectroscopy analyses of PEC devices show that the presence of titanium complex in PE reduces the charge transfer resistance and increases the charge storage capacity of the cells. This improvement could come from the oxidation of iodides and reduction of titanium ions inside the composite electrolytes that increase the lithium ions mobility. © 2012 Elsevier B.V. All rights reserved. Source


Di Benedetto F.,University of Salento | Di Benedetto F.,ENEA | Fasano V.,Italian Institute of Technology | Fasano V.,University Del | And 11 more authors.
Soft Matter | Year: 2013

Elastomeric polymeric microspheres are employed as a direct-writing tool for the continuous delivery of molecular materials. The mechanical properties enabling patterning are investigated and modelled. The proposed approach provides a low cost and versatile lithographic method for transferring features with real-time dynamic control. This journal is © 2013 The Royal Society of Chemistry. Source


Arbouche R.,University of Batna | Arbouche F.,University Del | Arbouche H.S.,University Del | Arbouche Y.,University Del
Revue de Medecine Veterinaire | Year: 2012

The study aims to evaluate the effects of the non-detoxified apricot kernel meal incorporated to the broiler diets on growth performance. A total of 200 one day old F15 broiler chickens was randomly divided into 4 equal groups according to the substitution rate of soybean meal with the apricot kernel meal (0%, 20%, 40% and 60%) for 48 days. No mortality was observed in any groups. Whereas the consumption index was significantly increased, the body weights, weight gains and food intakes were significantly diminished and proportionally to the substitution rates in birds receiving diets substituted with 40% or 60% kernel meal during starting, growing and finishing periods. For a substitution rate of 20%, the parameters were significantly altered only for the first 10 days. These results show that the incorporation of the apricot kernel meal up to 20% into the broiler diets significantly delays growth probably because of HCN and suggest testing detoxified kernel meals on broiler growth. Source

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