ALGORITMO PER LA VALUTAZIONE OGGETTIVA DELLE BUONE PRASSI

Il lavoro su cui qui si riferisce ha tratto spunto dall’iniziativa – supportata da Inail Piemonte – del concorso “meno carta più sicurezza”, un concorso nato per valorizzare le buone prassi vantaggiose anche in termini di gestione economica dei rischi ed estendibilità a situazioni assimilabili. Sin dalle prime fasi di attività della giuria, ci si è resi conto della mancanza di metodiche formalizzate di valutazione, essendo la maggior parte dei criteri adottati a livello nazionale ed europeo, basati su un approccio qualitativo, non esente da valutazioni soggettive. Inail Piemonte e Politecnico di Torino hanno, quindi, ritenuto utile impostare un metodo formalizzato per: a) individuare un criterio di organizzazione dei dati di ingresso, b) identificare nei progetti parametri valutabili, oggettivi e numericamente quantificabili, c) sviluppare un algoritmo di elaborazione dei valori di detti parametri, per una valutazione motivata delle proposte. Detto metodo è stato testato su una serie di casi reali tratti dal citato concorso e sviluppato in forma di tecnica computer assistita

Loading and haulage in quarries: criteria for the selection of excavator - dumper system

The optimisation of loading and haulage is one of the most important issues for the yield of quarrying activities. Many external factors may affect loading and haulage system selection: amongst them a very important role is played by local topography, stability conditions, size of the excavated material and capacity of the crusher. Of course, loading and haulage equipments affect one another and should be matched in order to get an efficient system, considering both production and economical aspects; selection criteria should be mainly based on: optimisation of loading system (sometimes working as excavation equipment too); optimisation of haulage system (in terms of both single equipment and fleet); optimisation of maintenance programs and organisation (in terms of availability of the system). In particular, the paper deals with the hydraulic excavator – dumper (or truck) system, focusing on the relations between the technical characteristics of the equipments. Many loading and haulage operations have been analysed in different Italian open cast mines and quarries, in order to identify the best working relations and to derive a simple procedure for a proper selection

Designing circular supply chains in start-up companies: evidence from Italian fashion and construction start-ups

PurposeThe theory of complex adaptive systems (CASs) represents an interesting perspective to study the characteristics of circular supply chains (CSCs). In this regard, the current literature lacks evidence regarding coordination and integration mechanisms, characteristics of the environment and emerging system properties of CSCs. This paper aims to fill this gap and focuses on how and why companies design (i.e. configure and coordinate) their CSCs and what value these design choices help to create across different industries.Design/methodology/approachThe authors use a multiple case study approach and analyze data collected from a sample of five sustainable start-ups operating in the fashion and construction industries in Italy to better understand how these companies design (i.e. configure and coordinate) their CSCs.FindingsResults reveal that in the two industries under investigation, the design of CSCs built around open and closed-loop logic is triggered by the intention to solve a negative sustainability impact. The sustainability impact determines whether the value is restored within the same supply chain, in another, or inside or outside the same industry. Interestingly, start-ups appear to coordinate other CSC actors with three leading roles: (1) orchestrator, (2) integrated orchestrator and (3) circular manufacturer. The coordination role of the start-ups differs in each supply chain configuration based on the level of vertical integration of manufacturing activities.Originality/valueFrom a theoretical perspective, the authors' results expand previous supply chain management (SCM) literature by presenting an empirical analysis of the configuration and coordination of CSCs, and discussing the drivers for creating such circularity from a CAS perspective. From a managerial perspective, the authors offer a practical experience to entrepreneurs on how to transform circular and sustainable business model aspirations into CSC practices