Search results for "SITE"
showing 10 items of 8388 documents
Antifouling Mortars for Underwater Restoration
2022
This research has focused on the assessment of the compositional features and mechanical and antifouling performances of two different mortars formulated for an underwater setting, and which contain Mg(OH)2 as an antifouling agent. Regarding the mechanical characterization, the uniaxial compressive strength and flexural strength were measured. The composition of the materials was explored by differential thermal/thermogravimetric analysis (DTA-TG), X-ray diffraction analysis (XRPD), and scanning electronic microscopy (SEM) coupled with EDS microanalysis. The assessment of the biological colonization was evaluated with colorimetric analysis and image analysis. The results suggest that both m…
La Reggia di Venaria Reale in Italy and Palacio Real de Aranjuez in Spain: history, restoration and significance, comparative study between Two Royal…
2017
La investigación relaciona dos sitios reales, La Reggia di Venaria Reale en Italia y el Palacio Real de Aranjuez en España, confrontando su desarrollo histórico y arquitectónico, las obras de restauración llevadas a cabo, los criterios para su inclusión en la Lista de Patrimonio Mundial y su uso hoy en día como museos. El estudio comparativo muestra cómo ambos palacios se usaban inicialmente como residencias de caza en lugares con abundancia de agua y pesca. Además, los dos están ubicados cerca de las capitales políticas de su tiempo; esto es, Turín y Madrid. El hecho que el mismo arquitecto – Filippo Juvarra estuviera presente en ambas residencias reales contribuye a las similitudes, y en …
Physicochemical investigation of surfactant-coated gold nanoparticles synthesized in the confined space of dry reversed micelles
2006
Abstract Gold nanoparticle/surfactant composites have been synthesized by a novel reduction reaction in the confined space of dry sodium bis(2- ethylhexyl)sulfosuccinate (AOT) or lecithin reversed micelles dispersed in n-heptane and cyclohexane, respectively. The reaction was carried out by adding an opportune amount of anhydrous hydrazine/tetrahydrofuran solution to a suspension of HAuCl4-containing dry reversed micelles dispersed in organic solvent. UV–vis investigation ascertained the formation of stable metal gold nanoparticles and the analysis of FT-IR spectra highlighted the formation of an oriented surfactant monolayer at the nanoparticle surface. Simple evaporation under vacuum of t…
Kenaf-filled biodegradable composites: rheological and mechanical behaviour
2012
A model for the prediction of the flow curves from interlayer distance and vice versa for intercalated polymer and polymer blend nanocomposites
2015
In this work was proposed a simple model to predict the viscosity and the power law index from the interlayer distance and, vice versa, the interlayer distance from a single flow curve for intercalated polymer nanocomposites. This model cannot be applied to exfoliated nanocomposites or when other interactions are present in the systems.
Adaptation to world trends : a rereading of the May Fourth Movement radicalization
2013
Port-en-Bessin et Commes, le mont Castel
2014
International audience
Room temperature synthesis of lanthanum phosphates with controlled nanotexture as host for Ln(III) through the Epoxide Route
2022
AbstractHerein, the Epoxide Route, a one-pot room temperature alkalinization method based on the reaction between a nucleophile and an epoxide, has been employed to synthesize LaPO4 in the form of a Rhabdophane phase. The intrinsic features of this synthetic approach allow the reaction to be followed by pH monitoring, making possible the identification of the different precipitation steps involved in the formation of the solid. Once demonstrated the effectiveness of this chemical methodology, the size and shape of the LaPO4 particles were controlled by varying the identity and proportion of the organic co-solvents employed to perform the reaction. By these means, crystalline particles with …
Extensión del modelo de comunicación publicitaria de Rossiter y Percy a la decisión de compra electrónica del consumidor
2022
El modelo de Rossiter y Percy (1985,1987) se ha utilizado como marco conceptual ampliamente en investigaciones sobre comunicación publicitaria, mientras que su aplicación en el contexto de la decisión de compra es muy limitada. Esta Tesis propone la validación del modelo para explicar las ventas online de múltiples categorías de producto según las características de la comunicación empleadas en el comercio electrónico. También plantea a través de las dimensiones del modelo,estudiar cómo las características de la atmósfera del comercio electrónico y el nivel de familiaridad del consumidor pueden afectar la decisión de compra. The Rossiter and Percy model (1985, 1987) has been widely used as …
Un nouvel interdit au musée : la photographie ?
2008
« Photographies interdites » : cette indication accueille fréquemment le visiteur à l’entrée du musée ou de l’exposition. Les auteurs analysent l’évolution de cette pratique du point de vue du droit et des usages et montrent comment la photographie peut en définitive être considérée par le visiteur comme un instrument de médiation.