Scegliere la ricerca è una sfida che può essere compensata solo dallameraviglia di sapere che c’è ancora qualcosa di nuovo da cercare. Il nostroimpegno è per un ambiente scientifico internazionale, fertile e libero dacondizionamenti. Le nostre ricerche sono focalizzate principalmente nell’ambitodell’ingegneria gestionale, delle scienze organizzative, del management, e dell’economia.
|Il Coordinatore del Dottorato di Ricerca in Ingegneria dell’Impresa Nathan Levialdi Ghiron|
Il Dottorato di Ricerca in Ingegneria dell’Impresa fornisce le competenze necessarie per esercitare attività di ricerca di alta qualificazione presso soggetti pubblici e privati, nonché competenze qualificanti anche nell’esercizio delle libere professioni, contribuendo alla realizzazione dello Spazio Europeo dell’Alta Formazione e dello Spazio Europeo della Ricerca. In accordo con le linee di indirizzo della Scuola di Dottorato dell’Associazione italiana Ingegneria Gestionale (AiIG), il programma si sviluppa secondo quattro cardini fondamentali:
Cucchiella, F., D’Adamo, I., Gastaldi, M., Miliacca, M.
Biomethane is a promising renewable energy carrier with the potential to diversify and decarbonise natural gas. It is produced from a range of waste sources and can be distributed into the natural gas grid or used as a vehicle fuel or converted into in cogeneration units. The economic evaluation of small plants for biomethane injection into the gas grid is not well defined in literature. This paper proposes a mathematical and economic model useful to evaluate the profitability of these plants in according to Discounted Cash Flow (DCF) method. The indicators used are Net Present Value (NPV), Discounted Payback Time (DPBT), Internal Rate of Return (IRR) and Profitability Index (PI). The baseline case studies analyse three different small-scale sizes (50 m3/h, 100 m3/h and 150 m3/h) concerning two typologies of substrates (organic fraction of municipal solid waste (ofmsw) and a mixture of maize and manure residues). Results define that the profitability is verified only for 150 m3/h ofmsw plant in baseline case study (NPV is 615,694 €, DPBT is 3 y, IRR is 33% and PI is 0.18). Furthermore, alternative case studies are conducted on the main critical variables (subsidies, investment costs of biogas production, transport costs of substrates and percentage of maintenance and overhead costs in biogas production). The economic feasibility can be reached in the following case studies: 100 m3/h ofmsw plant in sensitivity analysis, 50 m3/h ofmsw plant in scenario analysis, 150 m3/h mixed plant in scenario analysis with a new incentive scheme and 100 m3/h manure residues plant in scenario analysis. The biomethane can contribute to develop the circular economy recovering a wide range of waste.
Lujak, M., Giordani, S.
In this paper, we study the agility of evacuation routes in relation to dynamically changing unpredictable hazardous conditions in smart space networks. Infrastructure safety conditions may unpredictably change through time. Due to unpredictability, evacuees’ safety can get jeopardized at any point of the evacuation route. Thus, it is not sufficient only to find the shortest evacuation routes considering present safety conditions and evacuation flow, but we should also consider other relevant characteristics that make the evacuation routes sufficiently safe through time. With this aim, we propose two new node importance metrics: evacuation betweenness centrality and evacuation centrality, both inspired by betweenness centrality. The first metric represents the fraction of efficient evacuation routes between all origin–destination pairs different from the given node that pass through that node, while the second represents the importance of the given node for evacuation considering the availability of alternative efficient evacuation paths (routes) from that node towards safe exits. Moreover, given a set of evacuees’ positions and safe exits, we find shortest agile evacuation routes, where by agile route we mean the ability to efficiently and safely reroute from intermediate nodes in case of unpredictable safety drops through maximizing the value of the evacuation centrality of the route’s intermediate nodes. In addition, we propose an algorithm for that problem and discuss its capability to react to the changes in safety circumstances along recommended routes.
Rosati, F., Costa, R., Calabrese, A., Pedersen, E.R.G.
Previous studies show that individual characteristics can influence stakeholder attitudes towards corporate social responsibility (CSR). This study analyses employee attitudes such as CSR demandingness, trust and satisfaction, to determine whether they vary according to differences in gender, age, and educational level. The analysis was carried out by surveying 153 employees of 11 Italian banks, and by performing a content analysis of the banks’ sustainability reports. The Italian banking sector was chosen because of recent financial and CSR scandals. The findings suggest that, on average, male employees are slightly more trusting in and satisfied with CSR performance than their female counterparts. Graduates are slightly more demanding, largely more trusting, and generally more satisfied than non‐graduates. Interestingly, the difference between older and younger employees is not significant. The proposed approach can be useful in designing tailored CSR activities and communication avenues by shedding light on employees’ CSR attitudes.
Il campus di Tor Vergata occupa un territorio di 600 ettari all’interno del comune di Roma, la città a più alta concentrazione di beni storici e architettonici.