1,721,834 research outputs found
Una lettura delle dinamiche dell’industria automobilistica europea in termini di Flying Geese e di Sophistication Index
Full text linkA laboratory investigation on the cyclic liquefaction resistance of pyroclastic soils
No full textThe paper analyzes the influence of some peculiar factors on the cyclic liquefaction behavior of a pyroclastic silty sand. The results highlight that liquefaction resistance of the natural soil is significantly enhanced by fabric with respect to that of reconstituted samples tested at the same state conditions; on the other hand, the cyclic strength of the reconstituted soil appears poorly affected by the relative density and confining stress. Furthermore, the non-plastic fine ash was observed to increase the cyclic resistance of the pumice sand with respect to that of the same coarse matrix added with plastic clay. Finally, no appreciable evidences of grain crushing were detected on all tested soils containing pumice sand. © 2016 Taylor & Francis Group, London
Innovation and Technical Change in the European Municipal Waste Industry
Full text linkMunicipal Waste (hereafter MW) sector is commonly considered an industry dominated by the collection segment and by labour intensive activity, with almost no room for innovation apart from waste-to-energy incinerators. In this work we intend to argue this perception, demonstrating that even when focused on labour intensive activities such as selection and recycling, MW sector is interested by innovation and technical change. But we claim that standard innovation theory developed by Neoclassical economics miss to represent a useful theoretical framework, and that Complexity Theory allows to better interpret innovation in this field
R. Silvestri. F. Petrucci, D. Chamochumbi, S. Santovito (2018), Comportamento innovativo delle piccole e micro imprese rurali nei network informali di impresa. In "I percorsi identitari nel Marketing". XV SIM Conference, Bari, 18-19 Ottobre 2018.
No full textIl presente lavoro affronta il tema dello sviluppo dei processi d’innovazione nel settore agro-alimentare e lo fa prendendo in esame il contesto delle reti informali di piccole e micro imprese rurali. Lo studio, in particolare, analizza un campione di 160 imprese del settore agro-alimentare, accomunate da una proposta d’offerta al mercato con produzioni di qualità, connesse al network informale 'Consorzio Puglia Natura' allo scopo di profilarne il 'comportamento innovativo' attraverso l'analisi delle attività di networking per l'innovazione e dei relativi contesti networks in cui tali attività si sviluppano. Lo studio prosegue mettendo in relazione tali attività con il tipo d’innovazioni sviluppate e le caratteristiche salienti dell'impresa allo scopo di individuare in che modo le attività di networking, con particolare riferimento a quelle che si sviluppano nei contesti delle reti informali di imprese, influenzano l'orientamento innovativo dell'impresa, nonché la sua capacità di attivare vere e proprie relazioni di business con lo scopo di acquisire le risorse necessarie allo sviluppo di effettivi processi di innovazione.
Lo studio poggia sul presupposto che, nel contesto delle piccole e micro imprese rurali, gli indicatori interni di innovazione tradizionali, come l'analisi dei brevetti sviluppati dall'impresa, l'analisi degli investimenti nelle attività di R&D, o l'analisi interna degli assets di risorse intangibili e della conoscenza in possesso all'impresa, non siano sufficienti a fotografare le modalità, né tantomeno la qualità, dei processi di innovazione e del comportamento innovativo delle imprese appartenenti a tali micro- contesti imprenditoriali. Al contrario osservando il comportamento della piccola impresa attraverso la prospettiva delle sue relazioni di business e dei processi di interazione che questa sviluppa con gli attori esterni nei diversi contesti network che la circondano, è possibile cogliere il modo in cui l'impresa esplorare e sviluppa nuove risorse e costruisce il proprio approccio all'innovazione
An online recommander system for large Web sites
No full textIn this paper we propose a WUM recommender system, called SUGGEST 3.0, that dynamically generates links to pages that have not yet been visited by a user and might be of his potential interest. Differently from the recommender systems proposed so far, SUGGEST 3.0 does not make use of any off-line component, and is able to manage Web sites made up of pages dynamically generated. To this purpose SUGGEST 3.0 incrementally builds and maintains historical information by means of an incremental graph partitioning algorithm, requiring no off-line component. The main innovation proposed here is a novel strategy that can be used to manage large Web sites. Experiments, conducted in order to evaluate SUGGEST 3.0 performance, demonstrated that our system is able to anticipate users' requests that will be made farther in the future, introducing a limited overhead on the Web server activity. © 2004 IEEE
Free municipal waste trade as an incentive to recycling. A theoretical study
No full textAccording to the Self-Sufficiency and Proximity Principle (SSP), municipal waste (MW) disposal has to be confined within delimited territorial zones, with no trade allowed. The justification is usually the need to make each community aware of its environmental responsibility and discourage diversion of MW to "waste havens". In this paper, we explore the possible benefits associated with some opening to MW treatment service trade. We assume that some areas are equipped with MW treatment facilities, while others are not. We demonstrate, under standard assumptions, that removing SSP and allowing trade of MW disposal services between such regions may foster MW selection in both areas. This is true not only when disposal capacity is constrained, so that a part of the original demand for MW diversion is unsatisfied, but also when it is unconstrained and can accommodate all the residual unsorted MW, provided that the design of rewarding schemes is appropriate. On the contrary, if both districts were equipped with a facility, the same would not be true, and each one would be more willing to exploit the plant’s capacity before engaging in efforts to reduce waste. JEL classification: olid waste, waste management, disposal facilities, waste trade, regulated markets
- …
