5,127 research outputs found
Residenze d'artista
No full textCatalogo pubblicato in occasione del programma di residenze d'artista dell'Istituto Italiano di Cultura di Barcellona.
dicembre 2017- novembre 2018
artisti:
Valerio Rocco Orlando
Raffaela Mariniello
Francesco Arena
Adrian Pac
Francesco Arena. Allontanarsi per vedere meglio
No full textLa lontananza è l'imprescindibile presupposto del complesso lavoro di Francesco Arena (1978), artista pugliese che ha scelto la scultura, e l'incontro di questa con altre discipline, per raccontare una storia che è personale e collettiva al tempo stesso
Aeroelastic analysis of an adaptive trailing edge with a smart elastic skin
No full textNowadays, the design choices of the new generation aircraft are moving towards the research and development of innovative technologies, aimed at improving performance as well as to minimize the environmental impact. In the current “greening” context, the morphing structures represent a very attractive answer to such requirements: both aerodynamic and structural advantages are ensured in several flight conditions, safeguarding the fuel consumption at the same time. An aeronautical intelligent system is therefore the outcome of combining complex smart materials and structures, assuring the best functionality level in the flight envelope. The Adaptive Trailing Edge Device (ATED) is a sub-project inside SARISTU (Smart Intelligent Aircraft Structures), an L2 level project of the 7th EU Framework programme coordinated by Airbus, aimed at developing technologies for realizing a morphing wing extremity addressed to improve the general aircraft performance and to reduce the fuel burning up to 5%. This specific study, divided into design, manufacturing and testing phases, involved universities, research centers and leading industries of the European consortium. The paper deals with the aeroelastic impact assessment of a full-scale morphing wing trailing edge on a Large Aeroplanes category aircraft. The FE (Finite Element) model of the technology demonstrator, located in the aileron region and manufactured within the project, was referenced to for the extrapolation of the structural properties of the whole adaptive trailing edge device placed in its actual location in the outer wing. The input FE models were processed within MSC-Nastran® environment to estimate stiffness and inertial distributions suitable to construct the aeroelastic stick-beam mock-up of the reference structure. Afterwards, a flutter analysis in simulated operative condition, have been carried out by means of Sandy®, an in-house code, according to meet the safety requirements imposed by the applicable aviation regulations (paragraph 25.629, parts (a) and (b)-(1))
Il modello Wake II per il calcolo delle forze idrodinamiche prodotte da onde generate dal vento su condotte sottomarine
No full textSustainable Pavements and Road Materials : Proceedings of the 7th SIIV Arena, Naples, Italy 9th September 2022
No full textThe SIIV Arena is a space for discussion in which PhD students and young scholars from various universities illustrate their research on topics of specific interest for the Scientific Disciplinary Sector ICAR/04 “Roads, Railways and Airports”. This volumecollects the proceedings of the 7thSIIV Arena, held in Naples on 9 September 2022, and held as part of the XVIII International SIIV Summer School: "Sustainable Pavements and Road Materials". The use of construction and maintenance technologies based on principles of sustainability, resilience and circular economy, are a reference, in synergy with the use of secondary raw materials, for achieving adequate mechanical performance for the road structure, with a reduced environmental impact. and costs. The growth gradient recorded in the field of civil infrastructures has defined an incessant use of natural resources with consequent negative effects in terms of environmental sustainability. The reuse of waste in mix design processes and the use of in situ processing systems and/or "low energy" technologies (i.e., cold and/or warm asphalt mixtures) fully meet the objectives underlying the principles of the circular economy.This volume aims to collect the most innovative research in the sector presented in the context of the 7thSIIV Arena by analyzing aspects relating to the design, construction and maintenance of the pavement and road infrastructure as a whole
Quattro nodi per la costituzione della città metropolitana di Napoli
No full textPer la costituzione della città metropolitana di Napoli sono discussi i quattro argomenti di maggior rilievo, proponendo delle soluzioni compatibili sia con le norme che con gli studi e ricerche: 1) la perimetrazione ed il contrasto tra area metropolitana e città metropolitana; 2) l'articolazione in aree omogenee, ripercorrendo le aggregazioni determinate dalle politiche di sviluppo; 3) le competenze, in relazione alle finalità del nuovo ente; 4) il tipo di pianificazione più idoneo per attuarle
Mercato unico e libertà di circolazione nell'Unione europea
No full textIl volume ha ad oggetto gli sviluppi che il diritto dell’Unione europea ha fatto registrare, sul piano normativo e giurisprudenziale, nell’instaurazione del mercato unico e nella realizzazione delle libertà di circolazione al suo interno.
Per ciascun capitolo gli autori hanno seguito uno schema unitario, che consiste in una sintetica introduzione all’argomento trattato, cui si accompagnano la citazione dei punti più significativi dei materiali rilevanti (es. articoli del TFUE, legislazione dell’Unione, sentenze della Corte di giustizia) e alcuni quesiti di verifica.
Tale impostazione permette a studenti e operatori del diritto di entrare in contatto in modo diretto ed efficace con la disciplina del mercato interno dell’UE, costituendo un utile strumento per la disamina e la discussione in aula delle tecniche normative ed argomentative impiegate per promuovere l’integrazione economica nel continente europeo.
Il volume affronta innanzitutto la disciplina degli scambi di merci con i Paesi terzi e nel mercato interno: nel primo capitolo tratta innanzitutto dell’unione doganale dell’UE e della connessa uniformità di trattamento degli scambi commerciali con Paesi terzi; si sofferma quindi sulla libertà di circolazione delle merci nel mercato interno, ossia in particolare sull’eliminazione delle barriere fiscali, tecniche e normative al commercio, pur nel rispetto di margini di autonomia normativa dei Paesi membri.
Al centro del volume si collocano i capitoli riguardanti la cittadinanza europea e la libera circolazione dei lavoratori. In particolare, il secondo capitolo analizza i rapporti la cittadinanza europea e quella degli Stati membri, nonché i diritti civili e politici che discendono dalla cittadinanza europea. Il terzo capitolo, invece, concerne la libera circolazione dei lavoratori all’interno dell’Unione europea ed esamina le condizioni d’accesso e di esercizio dell’impiego, i diritti dei familiari del lavoratore e le previsioni in materia di sicurezza sociale.
Il volume si chiude con i tre capitoli in tema di libertà di stabilimento, libera prestazione dei servizi e libera circolazione dei capitali e dei pagamenti. In particolare, i tre capitoli analizzano l’ambito di applicazione delle tre libertà, i relativi obblighi d’integrazione negativa e positiva a carico degli Stati membri, nonché le deroghe agli obblighi in questione, affrontando altresì le tematiche dell’abuso del diritto dell’Unione e della preclusione della potestà normativa degli Stati membri conseguente all’azione del legislatore sovranazionale
Biowaste-to-biomethane or biowaste-to-energy? An LCA study on anaerobic digestion of organic waste
No full textThe study aims to demonstrate the overall environmental sustainability of biomethane production by anaerobic digestion of the separately collected organic fraction of municipal solid waste. There is a great interest in the utilisation of biofuels produced from biowaste in the transport sector, due to the benefits of reduced pollutant emissions and diversified transport fuel supplies. An attributional, process-based life cycle assessment study quantifies and compares the potential environmental impacts of an anaerobic digestion plant, where the produced biogas is upgraded to biomethane for the transport sector instead that directly burned in a combined heat and power unit. The avoided impacts related to the utilisation of biomethane instead of diesel, petrol or natural gas have been evaluated with reference to a vehicle fleet made of passenger cars and small rigid trucks. They appear large enough to make the biomethane production the cleanest option for the management of biowaste. The global warming and non-renewable energy potentials of the Biowaste-to-Biomethane scenario improve of 79% and 36%, respectively, with reference to the Biowaste-to-Energy scenario. A sensitivity analysis evaluates the effect of several key parameters. Some of them are peculiar for the analysed application, such as the composition of the vehicle fleet, specific biomethane consumptions of these vehicles, and methane slip in the biogas upgrading unit. Some other parameters are more general, such as the final destination of solid digestate, gas engine efficiency, national electric energy mix. The results of the analysis provide data and information to policy-makers, planners and operators that would like or have to approach the management of the separately collected organic fraction of municipal solid waste. They also inform on the environmental advantages connected with the utilisation for road transportation of biomethane produced from this waste fraction
Environmental performance of three innovative leather production processes using less chromium and water
No full textThe role of activated carbon size in the catalytic cracking of naphthalene
No full textActivated carbons are efficient catalysts for tar cracking, suitable for hot cleaning of the syngas produced during biomass- and waste-to-energy gasification processes. This study investigates the conversion of naphthalene, utilised as reference for tar compounds, when catalysed by a coal-derived activated carbon. The attention focuses on the influence of the operating temperature, in the range 750-900°C, and the size of selected activated carbon, which has been used under form of pellets, granules and powders. The conversion efficiency improves when the temperature raised from 750°C to 900°C (from 79% to 99%, for the pellets), and when the catalyst size reduced from pellets to powders (from 79% to 97%, at 750°C). The diffusional resistance in the catalyst particles has been then quantified in terms of Thiele modulus and internal effectiveness factor. A gradual reduction of catalyst surface area has been also observed for longer tests, due to the progressive deposition of soot from naphthalene decomposition over and inside the porous structure of the activated carbon. The carbon content of these deposits has been quantified, showing larger percentages on the surface of granules and powders.Activated carbons are efficient catalysts for tar cracking, suitable for hot cleaning of the syngas produced during biomass- and waste-to-energy gasification processes. This study investigates the conversion of naphthalene, utilised as reference for tar compounds, when catalysed by a coal-derived activated carbon. The attention focuses on the influence of the operating temperature, in the range 750–900 °C, and the size of selected activated carbon, which has been used under form of pellets, granules and powders. The conversion efficiency improves when the temperature raised from 750 °C to 900 °C (from 79% to 99%, for the pellets), and when the catalyst size reduced from pellets to powders (from 79% to 97%, at 750 °C). The diffusional resistance in the catalyst particles has been then quantified in terms of Thiele modulus and internal effectiveness factor. A gradual reduction of catalyst surface area has been also observed for longer tests, due to the progressive deposition of soot from naphthalene decomposition over and inside the porous structure of the activated carbon. The carbon content of these deposits has been quantified, showing larger percentages on the surface of granules and powders
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