Search results for "RCA"
showing 10 items of 3171 documents
A Study on Acidification and Intercalation of Illite Clay Minerals and their Potential Use as a Filler in SPEEK Composite Membranes
2018
The acidification and intercalation of illite containing clays were studied for potential use as fillers for sulphonated poly (ether ether ketone) (SPEEK) composite membrane preparation and future proton exchange membrane fuel cells application. The acidification and dimethyl sulfoxide (DMSO) intercalation of illite clays have been studied by powder X-ray diffractometry, X-ray fluorescence spectrometry, and thermogravimetric analysis. SPEEK composite membranes were made with 1, 3 and 5% purified, acidified, DMSO intercalated clay fillers. SPEEK/clay composite membranes were characterized by proton conductivity, water uptake, and mechanical strength.
Strategie di ricerca dell’ospite nei parassitoidi e possibili impieghi in programmi di controllo biologico
2008
Integrazione tra ricerca e didattica per qualificare i contesti di apprendimento-insegnamento
2021
Il panel ha registrato la presentazione di sedici studi o ricerche che hanno affrontato direttamente o indirettamente alcuni aspetti significativi della intelligenza, della comprensione e della partecipazione nei contesti di apprendimento-insegnamento (Lucisano & De Luca, 2015). Uno dei contesti ricorrenti nelle indagini è quello universitario, che è esaminato con riferimento particolare: alla introduzione nella didattica di dispositivi (pod- cast - Tore, Tino e Fedeli, Università di Padova); alla sperimenta- zione di modelli innovativi (IMPROVe Model - Miranda, Uni- versità di Salerno, Di Palma, Università di Napoli “Parthenope”) e predisposizione di interventi che possono qualifi…
Long-Term Stability of TiS2–Alkylamine Hybrid Materials
2022
Layered TiS2 intercalated with linear alkylamines has recently attracted significant interest as a model compound for flexible n-type thermoelectric applications, showing remarkably high power factors at room temperature. The thermal and, particularly, environmental stability of such materials is, however, a still an open challenge. In this paper, we show that amine-intercalated TiS2 prepared by a simple mechanochemical process is prone to chemical decomposition through sulfur exsolution, and that the presence of molecular oxygen is likely to mediate the decomposition reaction. Through computational analysis of the possible reaction pathways, we propose that Ti-N adducts are formed as a con…
Thermally-stable polymer-layered silicate nanocomposites through intercalation of novel organo-modifier
2014
Que tenga el honor mil ojos. Los dramas de honra de Calderón de la Barca a la luz de la teoría mimética de Réné Girard.
2017
El presente trabajo analiza los tres dramas de la honra conyugal de Calderón de la Barca (a saber, El médico de su honra, A secreto agravio secreta venganza y El pintor de su deshonra) desde los postulados del antropólogo cultural Réné Girard. Las principales teorías de este autor difícilmente clasificable versan sobre el deseo y la violencia pero nacen y han sido aplicadas, básicamente, en el ámbito de los textos literarios canónicos. Consideramos que este punto de vista puede iluminar considerablemente estas crípticas obras sobre las que la crítica ha debatido profusamente sin llegar a consensos claros en lo tocante a su recepción e interpretación. Así, los aspectos más controvertidos de …
Efectos de la i-logica capitalista en la violencia de genero
2015
Las autoras de este artículo reflexionan sobre los cierres y recortes en recursos de servicios sociales en general y de atención a las mujeres víctimas de violencia de género en particular, concluyendo que es la ideología mercantilista aplicada a los recursos sociales de atención a los más necesitados, la principal causante de que estos no funcionen adecuadamente y de que las mujeres víctimas de violencia en muchos casos no reciban la atención que seria necesaria.
Introduzione
2021
Questa breve introduzione preannuncia i temi che sono sviluppati nella monografia "La ricerca didattica in Italia (1950-2020)", esplicita lo scopo per cui è stata scritta e chi sono i destinatari di essa; indica altresì la presenza di un glossario di lemmi specialistici che aiutano il lettore a comprendere meglio i presupposti storico-epistemologici della Didattica, le teorie dell’apprendimento, i metodi, gli strumenti e le tecniche della ricerca empirica in campo educativo ed i criteri generali di classificazione delle ricerche didattiche.
Design and Realization of a Bidirectional Full Bridge Converter with Improved Modulation Strategies
2020
In this paper a Full-Bridge Converter (FBC) for bidirectional power transfer is presented. The proposed FBC is an isolated DC-DC bidirectional converter, connected to a double voltage source&mdash
QUALITY AND PRICES OF INTRA-EUROPEAN TRADE OF FOOD-INDUSTRY PRODUCTS
2000
The completion of the European Single Market should bring out an exploitation of comparative advantages in production and trade. It is usually assumed that, given the predominance of intraeuropean trade flows in the global import figures of the European Union, efficiency gains from trade creation could be potentially important. However, the analysis of the effects of the Single Market on trade specialisation with a greater degree of accuracy requires trade quality indicators to be available. This paper uses the theory of index numbers to establish the relative quality levels of the food industry shipments to the European Internal Market from European Union member countries. It is found a po…