89,588 research outputs found
Ferrovia, stazione e città: esperienze significative di rinnovo in alcuni paesi europei
No full textil saggio esamina le esperienze europee più significative riguardo il rinnovo delle stazioni ferroviarie e la riconversione / riqualificazione delle aree di pertinenza. Viene posto in rilievo come queste operazione siano legate ad una diversificazione e integrazione delle diverse modalità di trasporto che diventano il presupposto per una riorganizzazione dell'intero sistema di mobilità e accessibilità alle aree centrali. Le trasformazioni tipologiche della stazione creano opportunità significative per vaste operazioni di riqualificazione urban
Stazioni Ferroviarie e riqualificazione urbana
No full textIl rinnovo delle stazioni e delle aree ferroviarie rappresenta, in tutta Europa, l'occasione per avviare vasti processi di riqualificazione urbana, riorganizzando la mobilità e l'accessibilità nelle aree centrali. Oltre ad un esame delle esperienze europee più significative, il volume presenta i risultati di una ricerca sulle stazioni medie dell'Emilia Romagna regione e le relative aree di pertinenza, effettuata per conto della Regione
The effect of COVID-19 on the distribution of PM10 pollution classes of vehicles: Comparison between 2020 and 2018
No full textA recent study by Pini et al. (2021), focusing on year 2018, demonstrated that different strategies should be considered in different Italian cities to mitigate the effects of PM10 pollution produced by circulating cars and commercial vehicles. The current study focuses on year 2020, considering the same ten Italian cities. This new study relies on the estimation of specific indices used to assess the size of the different circulating vehicle fleets (vehicle yearly mileage, diesel-fuel car and LCV fleet dimension, etc.) and their impact on PM10 pollution (Strength of Pollution). Results for 2020, severely affected by vehicular restrictions associated with COVID-19, indicate the need to adopt PM10 pollution reduction strategies for the various cities partially different from those identified earlier. For example, Euro 4 cars is the fleet having the highest impact on PM10 pollution in Rome (emitting 3,3 times more than Euro 6 vehicles), while in Milan the most polluting vehicles are Euro 0 cars (emitting 2 times more than Euro 6 vehicles). In Naples, Euro 0 cars emit 12,5 times more than Euro 6 vehicles. A careful look into the results also reveals that, for all considered cities, the three top fleets in terms of PM10 pollution always include Euro 4 or a higher Euro category fleet and a lower Euro category fleet (Euro 0 or Euro 3). These values were validated based on the use of pollution data from ground monitoring stations, which also allowed estimating the atmospheric mixing layer height. Results from the paper suggest that different incentivization policies have to be considered for the different considered cities. For example, in Naples the allocation of incentives should be ~60% towards new vehicles and ~40% towards recent used (i.e. second-hand) non-diesel vehicles, while in Florence it should be ~90% towards ECVs and ~10% towards recent used non-diesel vehicles
Dynamic Projection for the Design of an Adaptive Museum Guide
No full textVery often historical buildings used as museums are characterized by rooms completely covered with decorations (e.g. frescoes, inlay, etc.) rich in details and symbolic contents. Providing adequate information to the visitors to allow them to fully appreciate the artworks is of paramount importance in this context. X-reality technologies have the potential to provide an effective response to the need to combine the educational mission of museums with the ability to involve visitors emotionally, allowing the public to learn new knowledge in a playful way. This study introduces a Museum Guide System, based on Dynamic Projection, to increase the involvement of visitors to the Studiolo by Federico da Montefeltro at Urbino, minimizing technology intrusiveness by ensuring a complete fusion of digital contents with the physical environment. The system is able to track the visitors, to detect their profile and to offer information and multimedia contents tailored to the characteristics of the audienc
Human-robot collaborative reconfigurable platform for surface finishing processes
No full textSurface polishing can be counted among the most challenging manufacturing operations, especially when high qualitative levels in terms of surface texture characteristics are requested, such as in the case of polishing operations for plastic injection moulds. Robot-based solutions for surface polishing and quality assessment operations have been proposed at the state of the art, but it still is required the involvement of skilled workers for process supervision and final tuning operations. The introduction of human-machine collaborative solutions opens new opportunities, as the use of symbiotic polishing approaches, where both the humans and the machines capabilities can be shared to improve process effectiveness. The current work proposes a human-robot collaborative approach for surface polishing processes that integrates state of the art robot-based polishing and surface quality assessment technologies in a human-safe shared working environment. As a proof of approach feasibility, the paper presents the prototype of a reconfigurable platform designed to implement a flexible human-robot collaborative scenario for execution of polishing and quality assessment operations. Preliminary demonstrative polishing sessions on simple and complex components validate the system effectiveness with respect to manufacturing efficiency and reconfigurability capabilities. The results obtained provide a first positive response that symbiotic approach can objectively improve the polishing processes
Tenthredo pini Linnaeus, 1758, spec. nov.
No full textTenthredo pini [spec. nov.] T. antennis pectinatis lanceolatis, thorace subvilloso. Uddm. diss. 90. f. 13. Habitat in Pini foliis. Mas niger tibiis femoribusque fulvis. Femina duplo major grisea, antennis serratis. Larva caerulea extremitatibus fulvis.Published as part of Linnaeus, Carolus, 1758, Systema Naturae per regna tria naturae: secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis, Stockholm :Laurentius Salvius on page 556, DOI: 10.5962/bhl.title.542, http://zenodo.org/record/392220
Tetraselmis suecica F&M-M33 phycosphere: associated bacteria and exo-metabolome characterisation
No full textAlgae and bacteria establish complex relationships reciprocally influencing their growth. Associated bacterial communities alter microalgae metabolism and physiology, affecting biomass yield and quality. In this study, 203 bacterial isolates (33 different genera), recovered from Tetraselmis suecica F&M-M33 cultures, were identified and phenotypically characterized in relation to the microalgal growth-promoting (MGP) features of indol-3-acetic acid (IAA) and siderophore production. IAA production was observed in 30 isolates belonging to 10 genera, whilst siderophore production was observed in 12 isolates belonging to nine genera, indicating that bacteria which are phylogenetically different within the phycosphere community may contribute in similar ways to boosting algal growth. Moreover, strains belonging to a single genus (e.g. Bacillus, Muricauda, Labrenzia and Amorphus) showed different MGP features, but none of these isolates were capable of producing both growth-promoting factors. Twenty-two selected strains were further tested in co-culture assays to evaluate their effect on T. suecica F&M-M33 growth; four induced an increase in microalgal productivity. The exo-metabolome of T. suecica F&M-M33 cultures, either axenically or when co-cultured with either Vitellibacter strain AAD2 or Sphingopyxis flavimaris strain AG5, was determined using a non-targeted metabolomics approach using an Ultra High Performance Liquid Chromatography (UHPLC) system. This allowed for the detection of 133 entities (small chemical molecules, e.g. metabolites), of which 84 were identified. Most of the entities were common in all three cultures, showing that the T. suecica F&M-M33 phycosphere was rich in small peptides and organic acids, and a high number of terpenes were also observed. Seventeen entities were culture-specific, suggesting that they were directly related to microalgae–bacteria interactions
Partecipazioni di minoranza e disciplina europea delle concentrazioni tra imprese : osservazioni sulle proposte di ampliamento dell’ambito di applicazione del Regolamento n. 139/2004
No full textLe nuove Linee Guida dell'Autorità Garante della Concorrenza sulla quantificazione delle sanzioni antitrust : maneggiare con cautela
No full textApprofondita analisi critica delle nuove linee guida adottate dall'Autorità Garante della Concorrenza e del Mercato (AGCM) sulla quantificazione delle sanzioni antitrust in Italia
Stazioni Ferroviarie e riqualificazione urbana
No full textRiqualificazione delle aree ferroviarie in Europa;
Rinnovo deli ambiti ferroviari in Emilia Romagna;
Criteri guida per la riqualificazione delle aree ferroviari
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