2,780 research outputs found
Studio geologico e geotecnico dello scorrimento di una placca lacustre su argille varicolori nella media valle del Sangro presso Bomba (CH)
No full textXV Esposizione de' Fiori (21 - 23 maggio 2004): Spazi aperti all'Orto Botanico
No full textLe attuali "Esposizioni de' Fiori" sono manifestazioni pubbliche, promosse dall'Università di Modena e Reggio Emilia e dal Comune di Modena coinvolgendo attori pubblici e privati, che riprendono nello spirito e nei contenuti manifestazioni analoghe di epoca ducale (nel 1843 a Modena venne organizzata nell'Orto Botanico la I Esposizione de' Fiori, con primato in Italia). La XV Esposizione (coordinamento generale E. Antonini) si è svolta dal 21 al 23 maggio 2004, affiancando attività di diffusione della cultura scientifica (Spazi aperti all'Orto Botanico, organizzati dal Dipartimento) alla Mostra mercato "Garden Show" (presso il Giardino Pubblico comunale, organizzata da imprese private) L'inaugurazione ha avuto luogo venerdì 21 alle 15:30 presso il Giardino Ducale (area Garden Show). A seguire è stato presentato il Libro, prodotto dal Dipartimento, “Racolta di varj Secreti si per far colori da miniare..." a cura di P. Di Pietro Lombardi (Responsabile Settore Manoscritti Antichi della Biblioteca Estense di Modena) e M. Bandini Mazzanti (Docente dell’Orto Botanico), in presenza dei Curatori del Libro: P. Baraldi, R. Baroni Fornasiero, E. Sgarbi. Sabato 22 maggio sono stati presentati i risultati dell' iniziativa "La spilla aerobiologica: controlliamo i pollini in aria” - esperienza didattica tra il laboratorio di Palinologia e le classi III D e III F del Liceo Scientifico Statale A. Tassoni, organizzata in occasione della XIV Settimana della Cultura Scientifica (22/28 marzo 2004).Nella stessa giornata si è svolto l’itinerario “piante, ambiente e clima: lo spettacolo vivente delle forme e dei colori - percorso tra gli adattamenti delle piante esemplificati nell’Orto Botanico, attraverso proiezioni in Aula Storica e visite ai settori espositivi, e ha avuto luogo la proiezione “fiori, forme e colori nelle piante grasse” a cura di I. Ansaloni, Università di Modena e Reggio Emilia – Socio del Gruppo Modenese Succulente).Nella giornata di domenica (Aula storica), si è svolto l'incontro sul tema "Conservazione delle foreste tropicali e debito di CO2 dei paesi industrializzati”, con D. Sonetti (Docente dell’Università di Modena e Reggio Emilia – G.E.V. della Provincia di Modena) .Negli spazi dell’Orto Botanico erano presenti le ESPOSIZIONI: L’Orto Botanico per il territorio. Mostra iconografica a cura di C. Del Prete - Sezione Botanica del Dipartimento. Un “Giardino” di Piante mai viste. Disegni di piante fossili di G. Leonardi, a cura della Sezione Paleontologica del Dipartimento. GEV: volontari per l'ambiente - "La salvaguardia della biodiversità" a cura del Corpo Guardie Giurate Ecologiche Volontarie (G.G.E.V) della Provincia di Modena. Canali, acqua e piante - a cura del Consorzio di Bonifica Burana, Leo, Scoltenna e Panaro, in collaborazione con l'Orto Botanico. Racconto. Mostra di pittura in due atti, ispirata a “Il racconto dell’Isola sconosciuta” di Josè Saramago. (Primo atto: Orto Botanico, 21-23 maggio ‘04; Secondo atto: Giardino di Villa Sorra, 14 luglio ’04). A cura dell’Associazione culturale SoloArte, Modena. “La Bancarella degli Ortaggi” a cura degli alunni Scuola Elementare Statale L. Palestrina di Modena - Presentazione dei risultati dell’iniziativa CHI SEMINA RACCOGLIE...NELL’ORTO DELLA SCUOLA (XIV Settimana della cultura scientifica). Ma lo sai che pianta bevi? Itinerario “alcolico” all’interno dell’Orto Botanico a cura di M. Monari e I. Cattaneo.Piante succulente. Mostra a cura del Gruppo Modenese Succulente (Polisportiva San Faustino - Modena).Nell’Orto Botanico, durante la Manifestazione è stata presentata la mostra di pittura “RACCONTO” (Evento in due atti – 21 maggio – 14 luglio 2004). Orto Botanico – Giardino di Villa Sorra. (Le opere, esposte nell’Orto, sono state poi trasferite nel Giardino Comunale di “Villa Sorra” - Castelfranco, MO- in occasione della giornata conclusiva della mostra, il 14 luglio 2004)Durante la manifestazione, a orari prestabiliti, si sono svolte visite guidate all’Orto Botanico
Effect of hot and cold temperature on the mechanical behaviour of macro-synthetic fiber reinforced concretes
No full textFiber reinforced concretes (FRCs) are used in many civil engineering applications, i.e. industrial floors, tunnels, etc., given their ability of reducing concrete cracking. Besides their mechanical characteriza-tion, the effect of the environmental conditions, i.e. temperature, need to be properly understood.
The present paper presents results of experimental tests on the effects of hot and cold temperatures, from -30 °C to + 60 °C, on the mechanical performances of FRCs containing polypropylene fibers. The results show that the temperature affects the compressive, tensile and residual flexural strength of the material
Lattice structures integration with conventional topology optimization
No full textAdditive manufacturing (AM) processes enable the production of functional parts with complex geometries, multi-materials as well as individualized mass production. Another significant benefit of AM is the ability to produce optimized geometries with near perfect strength to weight ratios. For several years now, the topology optimization techniques assist the designers in order to develop components that have a good material distribution in order to reduce the weight ensuring the request stiffness. Therefore, the topology optimization generates concepts based on the subtractive approach and usually these geometries require a further post processing in order to obtain a geometry "ready to produce" that represents a compromise between the topologic result and the manufacturing constraints. The advent of the AM opens new scenarios in terms of definition of innovative geometries that are not feasible with the conventional processes (such as lattice structures). In order to exploit the AM capabilities, new topology optimization tools are emerging that allow to define innovative concepts that could reach structural performance greater than the result obtainable with conventional topology optimization. In this paper the Authors have studied a new concept design and the performance improvement, of PIN installation equipment, used for thin-walled aerospace workpiece, in order to solve critical dimensioning issues, due to the overcoming of the allowable range tolerances (strain and displacement). Topology optimization has been applied in order to define a new concept design able to satisfy the functionality requirements. Moreover, it has been conducted a study to evaluate the possible advantages offered by the integration of the lattice structure in the topology design in order to improve the performance in terms of weight and structural characteristics
Optimization of Machining Fixture for Aeronautical Thin-walled Components
No full textThe aim of this work has been the optimization of the fixtures performance used in thin-walled workpiece machining depending on the local rigidity characteristics of the component to be machined. An extensive topology optimization activity has been performed both on fixture-workpiece systems modelled with shell elements and on fixture-workpiece systems modelled with solid elements, varying the topology design variables and/or optimization constraints for each optimization problem, in order to provide a new design of fixture. Finally, a new blended Solid-Lattice design of the fixture, starting by the design topologically optimized, has been created. In this way, it has been possible to identify void regions in the design space, where the material can be removed, regions where solid material is needed, and regions where lattice structure is required. This has allowed to generate the optimal hybrid or blended solid-lattice design based on desired functionality of the part having as natural consequence the definition of a new method for fixtures design
Risultati dello studio preliminare della frana di Calitri (AV) mobilitata dal terremoto del 23/11/1980
No full textChocolate consumption and purchasing behaviour review: Research issues and insights for future research
No full textChocolate is consumed all over the world. Since its origin, it has undergone many transformations to meet changing market demand. A better understanding of consumer behaviour is a key objective of any business, and so it is for chocolate businesses. In order to fulfil this aim, the current study presents a systematic literature review of consumers' consumption and purchasing behaviour towards cocoa and chocolate. Two databases have been used to collect the literature: Scopus andWeb of Science. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) flow diagram was used to identify the articles through the process of data screening and extractions. A total of sixty-four scientific articles have been selected. Research topics, methodological approach and data collection method were identified for each article selected. Then, the identified topics were grouped into four categories in order to obtain a model of major determinants in chocolate consumption: personal preferences, product attributes, socio-demographic factors and economic attributes. Results show that there is a strong focus on Fair Trade in chocolate. Moreover, the current literature review supports the fact that the price and promotion are under-investigated issues. This research represents a valuable tool, especially from a marketing point of view, by creating new channels and new sales opportunities for chocolate products
Does fairness matter? Consumers' perception of fairness in the agro-food chain
No full textIntroductionDefining 'fairness' in the agro-food sector is a challenging task. There is no single definition of fairness and the literature does not provide a complete conceptualization from the consumer's point of view. The current research seeks to explore the consumers' interest in fairness and ethics in the agro-food chain by exploring (i) a comprehensive theoretical framework to conceptualize fairness from a consumer perspective, and (ii) the consumers' perceived importance of different food attributes as fairness-related aspects. MethodLiterature review and focus groups allowed for the creation of the final survey to be submitted to consumers. 529 valid responses from a predominantly Italian female sample were collected. Data were elaborated with Exploratory Factor Analysis and ANOVA test. ResultsThe research identified five dimensions of fairness: Fair price, environment, networking, short chain, and working condition. Also, it emerged that age influences consumers' perceived importance of products with fair attributes. DiscussionThis research contributes to the development of a fairer and more sustainable food system by identifying perceptions of agro-food chain fairness and establishing a link with food shopping intentions. The research provides companies with suggestions on how to expand sales by reaching a greater number of consumers
Influence of rotation on axisymmetric plasma equilibria: Double-null DTT scenario
No full textWe study the influence of toroidal plasma rotation on some relevant tokamak equilibrium quantities. The Grad-Shafranov equation generalised to the rotating case is analytically solved employing two different representations for the homogenous solution. Using an expression in terms of polynomials, we describe the separatrix shape by a few geometrical parameters, reproducing different plasma scenarios such as double-null and inverse triangularity. In this setting, the introduction of toroidal rotation corresponds to variations on relevant plasma quantities, most notably an enhancement of the poloidal beta. Using a more general expression in terms of Bessel functions, we reconstruct the full plasma boundary of the double-null configuration proposed for the upcoming Divertor Tokamak Test experiment, demonstrating how said configuration is compatible with different values of the plasma velocity
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