1,721,019 research outputs found
La Scuola Superiore Sant'Anna impegnata nella ricerca delle specie più idonee per l'uso energetico
No full textSpeciale Legno Energia, supplementoUnknown title: Terra e vita
Le colture "dedicate" per la produzione di biomassa da energia in Toscana
No full textArticolo pubblicato in Toscana Rurale, XLIV, supplemento al n.5 di Terra e Vit
Distorsioni interpretative e concretezza epistemologica nello studio delle anfore romane: l’esempio dell’ager Firmanus (Marche meridionali, Italia)
Full text linkThe considerations presented here derive from the study of Roman amphoras found during the Pisa South Picenum Survey Project (in the Marches Region), which dealt with the territory of Firmum Picenum. A total of 1751 fragments were collected, equal to 991 NMI, comprising local and imported products dating from the 3rd century B. C. up to the 7th century A. D.. Our aim is to evaluate the informative potential of the amphoras and try to avoid any bias by adopting a global study approach. This takes into account that many wares were not traded in amphoras and that, on the contrary, an amphora could be used for transporting not only its primary ware, but also many other products and that once it was no longer used as a container it could be re-used in many important historical-economic processes (in drainage works, in constructing buildings, and in necropolises)
Emission of a farm-size biomass boiler fuelled with agricultural residues: benefits of the electrofilter
No full textVineyard residues as a fuel for domestic boilers in Trento Province (Italy): Comparison to wood chips and means of polluting emissions control
No full textVineyard pruning residues are a potential resource of biomass for energy. Nevertheless the possible presence of agrochemicals in this fuel could entail negative environmental consequences during its combustion. In order to verify its sustainability for energy production, a case study was conducted: biomass from common and organic vineyards in Trento Province (Northern Italy) was collected, analyzed, and burned as comminuted fuel in a 180 MJ domestic boiler equipped with a micro electrostatic filter; wood chips and pellets produced with similar raw material (vineyard residues and spruce wood) were used as reference. Flue gases composition was monitored with particular attention to heavy metal contamination. The results, to be considered as preliminary, show that vineyard residues had higher emissions compared to the remaining fuels, including organic vineyard residues, but always within the limits prescribed in Italy. In terms of total heavy metal emissions no significant differences could be detected among the tested fuels. The electrostatic filter proved to be effective in the reduction of total fly ash emissions as well as the use of pelletized biomass
Un marmo per costruire l’impero. La fortuna del bardiglio
No full textIl bardiglio estratto nelle cave lunensi, a Fossacava e non solo, fu uno dei marmi impiegati per decorare, i età repubblicana e soprattutto a partire dal principato di Augusto, gli edifici pubblici e privati di Roma e di molte altre città dell'Impero
Colture legnose a breve rotazione nella pianura pisana
No full textLa coltivazione del pioppo come Short Rotation Forestry (SRF) è in rapida espansione in Italia; tuttavia permangono ancora incertezze in merito alla conduzione agronomica (tecniche di impianto, fertilizzazione, controllo delle infestanti, ecc.), alla definizione delle reali potenzialità della coltura in terreni marginali o in sistemi a ridotto impiego di input tecnici (anche al fine di ridurne i costi colturali) e al ruolo che può esserle attribuito in termini di tutela ambientale. In questa sede vengono riportati i risultati di alcune ricerche condotte nella pianura litoranea pisana al fine di verificare la risposta delle SRF di pioppo a differenti tecniche di gestione
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