1,720,964 research outputs found
Safety in maintenance: errors and human factors
No full textMaintenance work is increasingly scrutinised when industrial
accidents or disasters of one sort or another happen. Just to
mention a recent news event, it appears very likely that the
effects of the tsunami that occurred in October 2010 in Indonesia,
causing the death of more than 300 people, could have
been mitigated had it not been for maintenance problems
Analisi dei rischi per ascensori MRL (Risk assessment for MRL lifts)
No full textIl presente lavoro ha permesso di analizzare le peculiarità tecniche, le condizioni ooerative e di valutare il livello di sicurezza che caratterizza I'espletamento degli interventi di manutenzione negli impianti ascensore Machine Room Less, proponendo una metodologia sperimentale per analizzare le
attività di manutenzione, identificare i fattori di rischio ed
i pericoli, ed effettuare il calcolo degli indici di rischio associati ai
pericoli precedentemente individuati. I risultati dell,applicazione di
tale procedura sono stati utilizzatiper stabilire se il livello di rischio
dei diversi pericoli può essere considerato accettabile
Impostazione e attuazione della analisi dei rischi in soluzioni impiantistiche tecniche di tipo innovativo e ad elevata potenzialità commerciale (impianti ascensore machine room less)
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Tele-maintenance “intelligent” systems for technical plants result management
No full textThe management of technical plant for productivity and safety is generally a complex activity, particularly when many plants distributed in the territory are considered (i.e. the more and more frequent case of outsourced plants maintenance by specialized companies), granted quality and cost results are required (i.e. the case of some rather innovative contract solutions) and the technology involved is heterogeneous and innovative (i.e. electro-mechanical plants). In order to efficiently achieve the above aims an “intelligent” maintenance–management system for the distant monitoring and controlling by a remote control center has been developed. The so-called GrAMS (granted availability management system) system is conceived to give to organizations involved in technical–industrial plants management the possibility to tend to a “well-known availability” and “zero-failures” management. In particular, this study deals with the diagnostic aspects and safety level of technical plants (such as elevators, thermo-technical plants, etc.), and with the involvement of ad hoc designed software analysis tools based on neural networks and reliability indicators. Part of the research dealing with the tele-maintenance intelligent system has been financed by the Italian High Institute for Safety (ISPESL) and led to the development of a pre-industrial prototype whose realization and testing is here described
Dispositivo innovativo per la stima dello stato di carica e la previsione dei guasti negli accumulatori
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Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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