1,240 research outputs found
Correction to: When terminology hinders research: the colloquialisms of transitions of control in automated driving (Cognition, Technology & Work, (2022), 10.1007/s10111-022-00705-3)
No full textIn the original article, author affiliation published with error. The correct affiliations are: Davide Maggi—Institute for Transport Studies, Leeds, UK. Richard Romano—Institute for Transport Studies, Leeds, UK. Oliver Carsten—Institute for Transport Studies, Leeds, UK. Joost C. F. De Winter—Faculty of Mechanical, Maritime and Materials Engineering, Delft University of Technology, Delft, The Netherlands. The original article has been corrected.Human-Robot Interactio
Admiel Kosman, Siamo giunti a Dio
No full textInternational audienceSix poems from Israeli poet Admiel Kosman translated from the Hebrew into Italian. Selection of poems, presentation of the author, translation and notes by Davide Mano
Admiel Kosman, Siamo giunti a Dio
No full textInternational audienceSix poems from Israeli poet Admiel Kosman translated from the Hebrew into Italian. Selection of poems, presentation of the author, translation and notes by Davide Mano
Starchitecture: Scenes, Actors and Spectacles in Contemporary Cities
No full textHow and why do spectacular buildings get commissioned and procured? What are their visible urban effects? What can urban planners, architects, and policymakers learn in order to engage in more successful citymaking?
In recent years, media and critical attention has been lavished on famous architects, and the contributions of their designs to the branding of cities. The post-“Bilbao effect” global landscape is one where cities compete for the highest-profile skyscrapers, cultural projects, and high-profile developments designed by star architects whom even casual readers know by first name: Frank Gehry, Bjarke Ingels, Jean Nouvel, Zaha Hadid, Norman Foster, Rem Koolhaas. Far less is known about the decision-making processes behind these projects and their subsequent urban effects.
A unique combination of urban studies and photography, Starchitecture investigates projects designed by star architects in cities including Paris, New York, Abu Dhabi, Bilbao, and the architectural microcosm of the Vitra campus in Weil am Rhein, Germany. Author Davide Ponzini and photographer Michele Nastasi seek to explain and critique a growing global condition by revealing how starchitecture has been and continues to be deployed in cities around the world. The arguments they raise are vital to understanding the urban landscapes of today, and tomorrow
Insights in anaerobic co-digestion via experimental and dynamic modelling tools
No full textLAUREA MAGISTRALENel presente lavoro di tesi sono stati presentati i risultati di una sperimentazione su un impianto pilota di digestione anaerobica. La sperimentazione, durata 7 mesi, è stata effettuata prima sulla mono-digestione del fango prodotto da un impianto di trattamento acque reflue e successivamente sulla co-digestione con dello yogurt scaduto di note marche commerciali. Il reattore ha operato secondo un modello CSTR (Continuous Stirred Tank Reactor) e un volume operativo di 60L a una temperatura di 38±0.5 °C. Il pilota è stato alimentato giornalmente in modalità semi-continua operando con un HRT medio di 17 giorni. Nella fase di mono- digestione il reattore è stato sottoposto ad un OLR medio di 1.34 kgVS/m3/d. Tale OLR medio, nella fase di co-digestione, è stato incrementato del 20% tramite l’aggiunta di yogurt passando a 1.61 kgVS/m3/d. Lo scopo principale del presente lavoro è stato quello di sviluppare e calibrare un modello di co-digestione su base ADM1 attraverso la piattaforma di programmazione OpenModelica. La calibrazione è stata effettuata attraverso un processo iterativo di validazione con i dati analitici, i risultati delle prove di BMP e delle prove di attività della biomassa svolte. Il metodo di iterazione proposto per la calibrazione del modello è risultato essere efficace: il modello si adatta in maniera soddisfacente ai dati sperimentali raccolti nel corso di 7 mesi di operatività dell’impianto pilota, come avvalorato tramite gli indicatori statistici Theil’s Inequality Coefficient (TIC) e Mean Absolute Relative Error (MARE). Tra i vari risultati ottenuti, gli indicatori TIC e MARE per la simulazione della concentrazione dei VFA nel digestato sono rispettivamente 0.174 e 0.333 (per entrambi i criteri, più il valore si avvicina a zero, migliori sono le prestazioni del modello, TIC <0.3 rappresenta un buon risultato di simulazione). Per la simulazione della concentrazione dell’ammonio (NH4+) si ottengono valori di TIC = 0.081 e MARE = 0.167. Per la simulazione dei test di BMP in co-digestione si ottengono valori di TIC = 0.009 e MARE = 0.018.In the present thesis work, the results of experimentation on a pilot anaerobic digestion plant have been presented. The experiment, which lasted seven months, was carried out first on mono-digestion of the sludge produced by a wastewater treatment plant and subsequently on co-digestion with expired yogurt of well-known commercial brands. The reactor operated according to a Continuous Stirred Tank Reactor (CSTR) model and an operating volume of 60 L at a temperature of 38 ± 0.5 ° C. The pilot plant was fed daily in semi-continuous mode operating with an average HRT of 17 days. In the mono-digestion phase, the reactor was operating with an average OLR of 1.34 kgVS/m3/d. This average OLR, in the co-digestion phase, was increased by 20% to 1.61 kgVS/m3/d by adding yogurt. The main purpose of this work was to develop and calibrate a co-digestion model based on ADM1 through the OpenModelica programming platform. The calibration was carried out through an iterative validation process with the analytical data, the results of the BMP tests and the biomass activity tests carried out. The proposed iteration method for the model calibration was found to be effective: the model adapts satisfactorily to the experimental data collected, as confirmed by the statistical indicators Theil's Inequality Coefficient (TIC) and Mean Absolute Relative Error (MARE). Among the various results obtained, the TIC and MARE indicators for simulating the concentration of VFAs in the digestate are 0.174 and 0.333, respectively (for both criteria, the closer the value to zero, the better the model performance, TIC <0.3 represents a good simulation result). For the simulation of the ammonium concentration (NH4 +), values of TIC = 0.081 and MARE = 0.167 are obtained. For the simulation of the BMP tests in co-digestion, values of TIC = 0.009 and MARE = 0.018, are obtained
Design and characterization of a fractal-inspired multi-frequency piezoelectric energy converter
No full textA promising harvesting technique, in terms of simplicity and efficiency, is the conversion of ambient kinetic energy through piezoelectric materials. This work aims to design and investigate a piezoelectric converter conform to a fractal-inspired, multi-frequency structure previously presented by the author. A physical prototype of the converter is built and experimentally examined, up to 120 Hz, in terms of modal response and power output. Three eigenfrequencies are registered and the power output is particularly good at the fundamental eigenfrequency. Also the effect of the resistive load applied to the converter is investigated
Checking Flavour Models at Neutrino Facilities
No full textAbstractIn the recent years, the industry of model building has been the subject of the intense activity, especially after the measurement of a relatively large values of the reactor angle. Special attention has been devoted to the use of non-abelian discrete symmetries, thanks to their ability of reproducing some of the relevant features of the neutrino mixing matrix. In this Letter, we consider two special relations between the leptonic mixing angles, arising from models based on S4 and A4, and study whether, and to which extent, they can be distinguished at superbeam facilities, namely T2K, NOνA and T2HK
La rilevanza del rischio economico nella definizione dell’ambito soggettivo di applicazione della disciplina sui contratti pubblici e del diritto della concorrenza
No full textL’articolo si propone di analizzare il ruolo del rischio economico come criterio
idoneo a delineare l’ambito soggettivo di applicazione del diritto europeo dei
contratti pubblici e del regime della concorrenza. L’analisi si incentra sull’in-
terpretazione delle nozioni di “organismo di diritto pubblico” e di “impresa”. Il
contributo intende evidenziare la crescente importanza dell’analisi economica
come criterio ermeneutico utile a segnare il confine tra “pubblico” e “privato”,
tra “attività amministrativa” e “attività d’impresa”.The essay examines the role of economic risk in identifying the scope of public
procurement and competition law. The widespread use of private law institutions
by the public sector creates uncertainty about whether to apply public procurement
or competition law or both. According to the author, the concept of economic risk
could represent a decisive criterion for marking the boundaries between the two
areas of law. Consistently, the author highlights the importance of a “more
economic approach” in the application of European internal market law
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