1,721,102 research outputs found
A proposal for a new management framework for health care organizations simulation and optimization
No full textUse of Analytical Hierarchy Process (AHP) and Fire Dynamics Simulator (FDS) to Assess the Fire Protection Systems in a Fire Tunnel
No full textThe road and rail tunnels are increasing in number. Corresponding to this higher number of tunnels, an higher number of accidents related to safety problem appears. The road and rail tunnels safety is mostly related to the fire safety. Our purpose in this paper is to present a new integrated approach to the tunnels fire safety analysis. Indeed, using different techniques from the decision support tools, as AHP, and through the use of a fire simulator, as FDS, we would suggest a new priority in the classification of the fire fighting systems in tunnels. Attention will be paid especially in the analysis of the ventilation systems in tunnels
Appraisal of a New Risk Assessment Model for SME
No full textThe identification, assessment and reduction of the risks is among of the most important issues of the safety at work. This paper’s goal is to demonstrate the effectiveness of a new risk assessment method proposed by the authors and presented in the past [1]. In general, one can deal with risk assessment using different methods: quantitative, qualitative or a mix; however, the typical models proposed in the literature are difficult to implement in SMEs. The method proposed in this paper is a mixed one whose effectiveness is demonstrated through an application study carried out in different industrial systems, like a steel industry or a logistic services provider
Digital ergonomics: an evaluation framework for the ergonomic risk assessment of heterogeneous workers
No full textIn the era of smart factories, digital twin may be a key for improving ergonomics analyses related to manual assembly activities. The use of digital technologies can help in bypassing some biases related to observational methods and speeding up the ergonomics analyses. This paper proposes a framework based on the development of a digital environment for carrying out ergonomics simulations of complex working systems in which a number of workers and other variables have to be considered for ergonomics evaluation. Based on such framework, a case study considering heterogeneous workers in a manual car assembly system has been analysed, and the impact of the implementation of different job rotation strategies has been studied. The tool is demonstrated to be effective in evaluating the physical ergonomic risk of a large number of configurations, and the results highlighted that proper job rotation strategies may affect the final scores of the considered indices
Risks prioritization in decision making for wind energy investments using analytic network process (ANP)
No full textThe wind energy production grew up in the last years rapidly. In fact, the project management of these kind of initiatives has found, only recently, some practical references about the time, cost and quality management, stating some reference values (Fera, Macchiaroli, and Miranda, Project management for small wind turbines: An experimental survey on activities, lead times and risks, 2011) (Fera, Iannone, Macchiarli, and Miranda, 2012) (Fera, Iannone, Macchiaroli, Miranda, and Schiraldi, Project appraisal for small and medium size wind energy installation: the Italian energy policy effects, 2014). In these years a research question arose about the risks classification and prioritization of the different phases of wind energy initiatives. Aim of this paper is to present a classification and a prioritization of the risks during a project of installation for a wind energy initiative using the ANP
Analisi del Rischio Incendio all’interno di una Galleria Stradale per l’Individuazione dell’Influenza delle Caratteristiche Geometriche sull’Efficienza di un Impianto di Spegnimento Automatico
No full textProject Management for Small Wind Turbines: an experimental survey on activities, lead times and risks
No full text- In the last years, among the several available renewable Distributed Energy Resources (DER), a growing attention has been paid to small wind turbines (i.e., < 200 kWp). In particular, during the last years the Italian market has been growing up very rapidly (since only 7-10 years ago it simply was not existing while nowadays the total installed power has reached 8 MWp). In such a new market often operations related to commissioning and installing a small wind turbine have to be faced and validated for the first time. The objective of this paper is to summarize the experience of the authors in the application of traditional project management tools in this field to facilitate investors, project managers and stakeholders facing this market for the first time and to offer them a reference timeline in order to plan all financial and field activitie
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