Search results for "Materiali"

Controlling Thermal Flows through Natural Materials in Building Construction Sector

2019

Nowadays, the attention about the building sustainability is increasingly emerging, because of the major responsibility of the building field on the environmental degradation: both in terms of energy consumption from non-renewable sources and the raw materials impoverishment. In addition, the level of comfort required by users is growing and the thermal insulation of buildings becomes the key element for the reduction of energy consumption and CO2 emissions, both in the case of new construction and of the existing ones. The heat load of a building depends on the presence of insulating material which defines the performance of the building envelope. The main purpose of this work is both to i…

INFLUENCE OF CORK POWDER GRAINSIZE IN THERMAL AND MECHANICAL PROPERTIES OF CORK-NHL MORTARS

2019

Cork is a unique material, characterized by small closed cell structures, high insulating properties, very low density, high fire resistance and a very good durability after simple thermal treatment. The main use of cork in the production of stopper and insulating panels obtained with cork grains and a polymeric resin. Usually cork grains used in panel production have a grainsize around 1-2 mm. In this work cork grains have been used as aggregates for natural hydraulic lime mortars by reducing grainsize distribution. Cork grainsize has been reduced by means of a knife mill and divided in three different distributions, i.e. 1, 0.5 and 0.25mm. Mortars have been prepared according to NHL to co…

Corporazioni, maestranze e mestieri d’arte a Palermo al tempo di Giacomo Amato (1643-1732)

2017

Ci si sofferma sull'attività poliedrica delle varie corporazioni e maestranze palermitane il cui operato, tra la seconda metà del XVII e i primi decenni del secolo successivo, è affiancato dall'estro creativo di Giacomo Amato e da altre emergenti personalità che incisero notevolmente nel rinnovamento artistico della città di Palermo.

Effect of the UV exposure on the creep behaviour of PLA based green composites

2018

Green composites made of biodegradable matrices and lignocellulosic fibers are receiving growing attention from both academia and industries. Despite a wide literature can be found about mechanical behavior of such kind of composites, at the best of our knowledge, only limited information is available about their creep behavior [1] and no papers have been yet done on the effect of ultraviolet exposition. The tensile creep behavior at 40 °C of PLA based composites, containing flax and jute twill weave woven fabrics, produced through compression molding, was investigated. As preliminary characterization, quasi-static tensile tests were carried out on virgin and UV aged composites

Le riflessioni di Poggi e Baratono su Marx e Kant

2020

Viene presa in esame la stretta relazione esistente tra la filosofia pratica di Kant e il materialismo storico di Marx nell’ampio e complesso contesto della cultura determinatasi in Europa a cavaliere dei secoli XIX e XX. A tale scopo, non si può trascurare l’analisi di quanti hanno rimarcato la stretta relazione tra la filosofia critica di Kant e il materialismo storico di Marx. In tal senso la memoria conduce immediatamente e in primo luogo alla chiave di lettura offerta da Alfredo Poggi ad inizio del Novecento. La linea interpretativa di Poggi fu in seguito ripresa da Adelchi Baratono, così come si può riscontrare sulle pagine de «La Critica Sociale» degli anni intorno al 1920.

Catacomba di Villagrazia di Carini. Il cubicolo X20. Ricerche 2008-2013

2014

Il X20 è una camera funeraria quadrangolare preceduta da un dromos che deriva da un preesistente arcosolio bisomo. Al suo interno accoglie 29 sepolture: dodici arcosoli per adulti e per bambini, una tomba a nicchia, due tombe a cassa e quattordici fosse pavimentali. Si è potuto accertare che l’aspetto attuale del cubicolo è il risultato di quattro fasi costruttive. Alla prima fase appartiene la decorazione ad affresco con temi floreali e vegetali, che riveste la parete settentrionale. In un momento successivo l’estensione della camera viene raddoppiata e di fonte all’ingresso si crea una scenografica sistemazione di arcosoli e tombe a cassa; nelle due ultime fasi il pavimento viene interame…

Welcome to the candy shop! Conflicting representations of black masculinity

2014

AbstractMainstream hip hop videos have long been known for their images of scantily clad women, extreme materialism, and misogynist and homophobic lyrics. In this article I focus on how rapper 50 Cent's masculinity is constructed and expressed through music, lyrics and images in his video ‘Candy Shop’ from 2005. This is a classically modelled hip hop video, replete with markers of hypermasculinity: fancy cars, ‘bling’, and lots of beautiful, sexually available women. Several scholars have discussed how women are exploited in videos like this and reduced to props for the male star. However, few have explored how this macho masculinity is constructed. Through a close reading of this video, us…

Slikovnica kao predmet

2019

Based on recent studies on materiality, picturebook research, and cognitive studies, this paper investigates how children may perceive picturebooks as objects and their material properties. In this regard, we emphasise three dimensions of picturebooks as objects and relate them to developmental stages. The first dimension concerns the materials the picturebooks are composed of, such as paper, cardboard, wood, plastics, and cloth. The second dimension refers to the type of book, e.g. hardbacks, sets of cardboard sheets, fanfold books, pop-up books, and even hybrid objects such as books which are toys at the same time. Finally, this study focuses on the types of actions that are associated wi…

Disassembling the classroom – an ethnographic approach to the materiality of education

2012

The ethnography of education is challenged by the materiality of the classroom. Ethnographic accounts of school lessons mostly highlight language and interaction and offer no suitable methodology for researching objects and their role in the classroom. Moreover, objects are part of complex and interwoven assemblages involving human actors, practices and things. As such, their contribution to human practices often remains unnoticed in the background of routine activities. In order to make the materiality of practice available to ethnographic observation, we thus have to analytically disassemble these assemblages. An ethnographic approach that draws on practice theory and concepts developed i…

The Materiality of the Imagined Family

2012