La Linguistica dei corpora - che fa uso di corpora elettronici annotati per lo studio delle lingue - è un approccio ormai diffuso e consolidato. I corpora paralleli, in particolare, in cui i testi in una lingua A sono allineati con la traduzione in lingua B, sono uno strumento molto utile nell’analisi contrastiva. La mancata disponibilità di corpora paralleli di qualità per le lingue di nostro interesse - russo e italiano - ci ha portati a volere ampliare e migliorare il corpus parallelo italiano-russo presente come corpus pilota nel Nacional’nyj Korpus Russkogo Jazyka (Corpus Nazionale della Lingua Russa). Il presente lavoro ha avuto pertanto uno scopo applicativo e uno teorico. Da un lato, dopo aver studiato le questioni imprescindibili per la progettazione di un corpus di qualità, sono stati stabiliti i criteri per l’ampliamento e inseriti nuovi testi, consentendo così al corpus parallelo di passare da 700.000 a più di 4 milioni di parole, entità che consente ora di condurre ricerche scientificamente valide. In seguito, sono state proposte tre analisi corpus-based così da mettere in luce le potenzialità del corpus ampliato: lo studio dei verbi prefissali di memoria russi e la loro resa in italiano; il confronto tra il causativo analitico italiano “fare + infinito” e il causativo russo; l’analisi comparata di quindici versioni italiane de Il Cappotto di N. Gogol’. Le tre analisi hanno consentito di avanzare innanzitutto osservazioni di carattere metodologico in vista di un ulteriore ampliamento e miglioramento del corpus parallelo italiano-russo. In secondo luogo, la prospettiva corpus-based si è dimostrata utile per approfondire lo studio di questi temi dal punto di vista teorico. / Corpus Linguistics - which exploits electronic annotated corpora in the study of languages - is a widespread and consolidated approach. In particular, parallel corpora, where texts in a language are aligned with their translation in a second language, are an extremely useful tool in contrastive analysis. The lack of good parallel corpora for the languages of our interest - Russian and Italian - has led us to work for improving the Italian-Russian parallel corpus available as a pilot corpus in the Russian National Corpus. Therefore, this work had a twofold aim: practical and theoretical. On the one hand, after studying the essential issues for designing a high-quality corpus, all the criteria for expanding the corpus were established and the number of texts was increased, allowing the Italian-Russian parallel corpus, which counted 700.000 words, to reach more than 4 million words. As a result, it is now possible to conduct scientifically valid research based on this corpus. On the other hand, three corpus-based analyses were proposed in order to highlight the potential of the corpus: the study of prefixed Russian memory verbs and their translation into Italian; the comparison between the Italian analytic causative "fare + infinitive" and Russian causative verbs; The comparative analysis of fifteen Italian versions of The Overcoat by N. Gogol'. These analyses first of all allowed to advance some methodological remarks considering a further enlargement and improvement of the Italian-Russian parallel corpus. Secondly, the corpus-based approach has proved to be useful in deepening the study of these topics from a theoretical point of view.

The present doctoral thesis deals with the study and the analysis of large strain and high strain rate behavior of materials and components. Theoretical, experimental and computational aspects are taken into consideration. Particular reference is made to the modeling of metallic materials, although other kinds of materials are considered as well. The work may be divided into three main parts. The first part of the work consists in a critical review of the constitutive modeling of materials subjected to large strains and high to very high strain rates. Specific attention is paid to the opportunity of adopting so-called strength models and equations of state. Damage and failure modeling is discussed as well. In this part, specific interest is addressed to reviewing the so-called Johnson-Cook strength model, by critically highlighting its positive and negative aspects. One of the main tackled issue consists in a reasoned assessment of the various procedures adoptable in order to calibrate the parameters of the model. This phase is enriched and clarified by applying different calibration strategies to a real case, i.e. the evaluation of the model parameters for a structural steel. The consequences determined by each calibration approach are then carefully evaluated and compared. The second part of the work aims at introducing a new strength model, that consists in a generalization of the Johnson-Cook model. The motivations for the introduction of this model are first exposed and discussed. The features of the new strength model are then described. Afterwards, the various procedures adoptable for the determination of the material parameters are presented. The new strength model is then applied to a real case, i.e. a structural steel as above, and the results are compared to those obtained from the original Johnson-Cook model. Comparing to that, the obtained outcomes show that the new model displays a better capacity in reproducing experimental data. Results are discussed and commented. The third and final part of the work deals with an application of the studied topics to a real industrial case of interest. A device called perforating gun is analyzed in its structural problematics and critical aspects. This challenging application involves the modeling of several typologies of material, large strains, very high strain rate phenomena, high temperatures, explosions, hypervelocity impacts, damage, fracture and phase changes. In this regard, computational applications of the studied theories are presented and their outcomes are assessed and discussed. Several finite element techniques are considered. In particular, tridimensional Eulerian simulations are presented. The obtained results appear to be very promising in terms of the possibilities of a fruitful use in the design process of the device, in particular in order to achieve an optimization of its key features.

L’intensità del trasporto alimentare è un trend destinato ad aumentare nella sua complessità. La ricerca attesta come sia rilevante analizzare “come il cibo viaggia”, forse più di “quanto il cibo viaggia”, nel mercato globalizzato dei prodotti agroalimentari, nelle realtà urbane che modificano le abitudini di consumo e nel “global food system” composto da cinque tipologie di sistemi agroalimentari. Gli impatti in sostenibilità sono strettamente dipendenti dall’efficienza del trasporto e della logistica, di merci agroalimentari e di persone che si spostano per l’approvvigionamento, dal campo al consumatore e viceversa. Eppure il concetto di food miles si è ampiamente diffuso tra gruppi di consumatori, attestando mutamenti culturali significativi. Si pensi all’idea tutta italiana di “km-zero”. “Può il trasporto del cibo essere economicamente, socialmente e culturalmente sostenibile, per conservare l'ecosistema?” Questa domanda, approfondita pedagogicamente, può essere riformulata: “How can consumers, economical stakeholders and policy makers become environmentally friendly about transportation of food?” Il quesito conduce all’interrogativo di quale formazione e ricerca interdisciplinare progettare per orientare gli sforzi verso questo fine. Una nuova formulazione concettuale potrebbe promuovere azioni sostenibili per la mobilità e i trasporti sulle lunghe, medie e corte distanze, per la filiera lunga e corta: il “Kmetro verde”. / The transportation of agro-alimentary products is constantly evolving. The research has been focusing on long distances, tied with the global market. But results in a lack of investigations in medium and short distances which also possess some efficiency gain. The investigation of these shorter mode of transport is paramount as they have significant impact on the triptych of sustainability. In this context, the concepts of "food miles" and of "km-zero" have spread widely among the consumers, attesting the community awareness regarding sustainability issues. However, as environmental concerns arise, such concept has showed it's limit. Therefore the question, "Can transportation of food become economically, socially and culturally sustainable, to preserve the ecosystem?", that lead to this concept, needs to be reassessed. Starting from a pedagogical standpoint, this question can be rephrased as “How can consumers, economical stakeholders and policy makers become environmentally friendly about transportation of food, to preserve the ecosystem?”. For a successful undertaking of such problematic, it is paramount to evaluate the need of novel training practises as well as the design of interdisciplinary research. A new formulation of such concept, embodied in "kmeter green", would aim to promote sustainable mobility on all the distances and chains' lengths.

Il arrive que l’architecture soit critiquée pour les usages qu’elle a « produits » ou ceux qu’elle a « interdits » (un certain désaveu des grands ensembles en est symptomatique). Parfois, la critique porte justement sur le décalage entre l’intention d’origine et l’effet réellement produit (les grands ensembles étaient à l’époque pétris d’humanisme). Mais la connaissance de cette intention fait défaut, et engage donc à un travail de recherche.Les théories de la conception ont pour objet une certaine intelligibilité de la conception. Mais il semble que l’activité de conception explicitée par ces théories, se concentre essentiellement sur l’artefact architectural pris dans ses dimensions tangibles et matérielles. S’intéressant au contraire à la « réception » imaginée par l’architecte, la question se pose de savoir si nous sommes en mesure de connaître la conception de modes de vie, l’invention d’usages et d’expériences… L’ancrage dans les sciences de la conception nous engage à nous détacher d’approches telles que celle de la sociologie des usages, puisque nous nous intéressons à des récepteurs qui n’existent pas encore et ne sont que représentés ou anticipés. Le concept de « conception de la réception » construit dans ce travail signifie cette appropriation de la réalité de la réception par la cognition des concepteurs. En effet, le phénomène dont l’explicitation est visée est un processus de pensée, une capacité mentale.Ce travail définit deux corpus imbriqués. D’une part l’architecturologie qui constitue un cas de théorie de la conception dont il est possible de faire l’étude épistémologique critique. D’autre part, les projets de Bernard Tschumi et de Rem Koolhaas pour le parc de La Villette en 1982 qui constituent des cas de processus de conception et un terrain d’application pour une étude architecturologique.— L’architecturologie est choisie comme cas de théorie de la conception pour les raisons qu’elle prend en compte la spécificité de l’architecture et qu’elle est caractérisée par une construction formelle, un potentiel de généralisation et une forte capacité modélisatrice. Elle constitue ainsi un terrain d’étude privilégié pour étudier la capacité d’une théorie à énoncer quelque chose de la « conception de la réception » architecturale. Toutefois, la méthode, construite d’une manière générique, est à même d’étudier d’autres théories de la conception.— Les parcs de la Villette de Bernard Tschumi et de Rem Koolhaas s’offrent comme une matière pertinente à l’étude, parce qu’ils proposent tout deux des usages particulièrement singuliers et répondent à un programme d’innovation sociétale.Le dispositif expérimental consiste alors à observer la théorie en la mettant en action sur ces cas de conception particuliers. La modélisation résultante permet d’évaluer la capacité de la théorie à décrire la « conception de la réception ». Le résultat de cette mise à l’épreuve ouvre ensuite à un travail de consolidation théorique. / Architecture happens to be criticized for the uses it « produced » or it « forbid » (the general disapproval of the French « Grands ensembles » being one typical case). Sometimes the critic focuses fittingly on the gap between original intentions and the real effect (the « Grands Ensembles » were at their time supported by a humanistic enthusiasm). But the knowledge of such an intention is lacking and compels to lead this research.Design theories aim a certain intelligibility of the design process. However, it appears that the design explained by those theories is the one that designs the architectural artifact in its tangible and material aspects. But, taking interest in the “reception” of that artifact, the question to ask is whether we are able to know the design of ways of life, the inventions of uses and experiences… The frame of design sciences (H. A. Simon) imply to withdraw from approaches like usage studies and sociological points of view, since we focus on users that do not exist yet but are represented or anticipated. The concept of “conception of the reception” elaborated in this work means this uptake of the reality of the reception by designers’ cognition. Indeed, the phenomenon we aim to elucidate is a thinking process, a mind ability.This work defines two nested researches’ bodies: one being the French theory, “architecturology” (Ph. Boudon, Ph. Deshayes, C.Lecourtois), a case of a design theory which will be epistemologically and critically analyzed; the other one, the projects of Bernard Tschumi and Rem Koolhaas at for the La Villette park comptetition in 1982 which are cases of design processes. These design cases are the field where an architecturological study is applied.— The reason why architecturology is chosen, is that it takes the specificity of architecture into account, and that it is characterized by a formal construction, a generalization potential and a strong modelling capacity. Therefor it is taken as an advantageous field to study the capacity of a theory to state something about the architectural “conception of the reception”. Whatever, the methods is built in a generic way and could study other theories.— The park of La Villette projects are relevant to study as they both suggested particularly unexpected usages and met a social innovation program.The experimental device consists then in observing the theory by putting it in action on particular study cases. The modelling result of it allows evaluating the capacity of a theory to describe the “conception of the reception”. The result of this theoretical probation may open afterwards to a theoretical consolidation work. / A volte l'architettura viene criticata per gli usi che ha "prodotto" o per quelli che ha "proibito" (un certo disconoscimento dei "grands ensembles" del dopo guerra francese è sintomatico). La critica riguarda spesso il divario tra l'intenzione originale e l'effetto realmente prodotto (i "grands ensembles" erano considerati all'epoca carichi di valori umanisti). La conoscenza diquesta intenzione è carente e richiede un lavoro di ricerca.Le teorie del design hanno lo scopo di fornire una certa intelligibilità del design stesso. Sembra però che l'attività progettuale spiegata da queste teorie si concentri essenzialmente sul prodotto architettonico nelle sue dimensioni tangibili e materiali. Quando invece ci si interessa alla Ŗricezioneŗ, è legittimo chiedersi se siamo in grado di conoscere la concezione degli stili di vita, l'invenzione degli usi e delle esperienze.... Il radicamento nelle scienze della progettazione (H. A. Simon) ci impone di distaccarci da approcci come la sociologia degli usi, poiché ci interessiamo a dei riceventi (o destinatari) che non esistono ancora e sono solo rappresentati o suggeriti. La nozione di "design della ricezione", elaborata in questo lavoro di ricerca, mette in luce la capacità dei progettisti di pensare la ricezione prima che accade. Il fenomeno che si cerca di spiegare è un processo del pensiero, una capacità mentale.Questo lavoro identifica due corpus intrecciati: da un lato, l' "architetturologia" (cf. Ph. Boudon, Ph. Deshayes, C. Lecourtois), un caso di teoria del design, di cui è possibile condurre uno studio epistemologico critico. Dall'altro, i progetti di Bernard Tschumi e Rem Koolhaas per il parco della Villette del 1982, inquanto esempi del processo di progettazione.Questi due esempi costituiscono un campo di applicazione per un'indagine architetturologica.- La scelta dell'architetturologia come esempio di teoria del design è motivata dal fatto che essa tiene conto delle specificità dell'architettura ed è caratterizzata da una costruzione formale, un potenziale di generalizzazione e una forte capacità di modellizzazione. Per queste caratteristiche essa ci offre la possibilità di studiare come una teoria possa esprimersi inmateria di "concezione architettonica della ricezione". Inoltre il metodo ha valore generale, tanto da permattere di analizzare altre teorie del design.- I parchi de La Villette di Bernard Tschumi e Rem Koolhaas sono rilevanti per lo studio poiché entrambi propongono funzioni singolari e rispondono a un programma di innovazione sociale.Il piano sperimentale consiste quindi nell'osservare la teoria, applicandola a dei casi particolari. Il modello che ne risulta viene utilizzata per valutare la capacità della teoria di descrivere il "design della ricezione". Il risultato di questo test apre quindi la strada a un lavoro di consolidamento teorico. / Manchmal wird die Architektur für die Nutzungen kritisiert, die sie "produziert" oder "verboten" hat (eine gewisse Geringschätzung der "grands ensembles" der französischen Nachkriegszeit ist dafür symptomatisch). Manchmal geht es bei der Kritik gerade um die Kluft zwischen der ursprünglichen Absicht und der tatsächlich erzeugten Wirkung (die"grands ensembles" waren damals vom Humanismus inspiriert). Aber eine tiefere Erkenntnis dieser Zielsetzung fehlt und erfordert daher Forschungsarbeit.Gestaltungstheorien zielen darauf ab, eine gewisse Verständlichkeit des Entwurfprozess zu vermitteln. Aber es scheint, dass sich die durch diese Theorien erklärte Entwurfstätigkeit im Wesentlichen auf das architektonische Objekt in seinen konkreten und materiellen Dimensionen konzentriert. Wenn wir uns dagegen für die "Rezeption" interessieren, stellt sichdie Frage, ob wir den Entwurf von Lebensstilen sowie zukünftige Nutzungs - und Erfahrungsausgestaltungen erkennen können.... Die Verankerung in den Wwissenschaften vom Entwerfen (H. A. Simon) verpflichtet uns, uns von Ansätzen wie der Soziologie der Nutzungen zu lösen, da wir uns für Rezipienten interessieren, die noch nicht existieren und nur vorgestellt oder antizipiert werden. Das in dieser Arbeit entwickelte Konzept des "Entwurfs der Rezeption" bedeutet, dass sich die Architekten kognitiv die Realität der Rezeption zu eigen machen. In der Tat ist das Phänomen, das hier beleuchtet werden soll, ein Denkprozess, eine geistige Fähigkeit.Diese Arbeit definiert daher zwei miteinander verflochtene Korpusse: Einerseits ist die ŖArchitekturologieŗ (Ph. Boudon, Ph. Deshayes, C.Lecourtois) ein Fall der Gestaltungstheorie, die man einer kritischen epistemologischen Studie unterziehen kann. Andererseits sind Bernard Tschumis und Rem Koolhaas' Projekte für den Park von La Villette aus dem Jahr 1982 Beispiele für Entwurfsprozesse. Diese Entwurfsbeispiele sind ein Anwendungsgebiet für eine « Architekturologie-Studie ».- Die « Architekturologie » wird als Fallstudie in der Gestaltungstheorie gewählt, weil sie die Spezifität der Architektur berücksichtigt und sich durch eine formale Konstruktion, ein Verallgemeinerungspotential und eine starke Modellierungsfähigkeit auszeichnet. Sie stellt deshalb einen besonders geeigneten Studiengegenstand dar, um zu untersuchen, inwieweit eine Theorie in der Lage ist, etwas von dem architekturalen "Entwurf der Rezeption" zu vermitteln. Allerdings ist die Methode auf eine so allgemeine Weise konstruiert, dass man auch andere Gestaltungstheorien damit untersuchen kann. - Bernard Tschumis und Rem Koolhaasř Entwürfe für den Park von La Villette sind für die Studie relevant, da sie beide besonders originelle Nutzungsmöglichkeiten bieten und einem gesellschaftlichen Innovationsauftrag Rechnung tragen.Das experimentelle Design besteht dann darin, die Theorie zu beobachten, indem es sie auf bestimmte Entwurfsbeispiele anwendet. Die daraus resultierende Modellierung ermöglicht es zu beurteilen, inwieweit die Theorie den "Entwurf der Rezeption" beschreiben kann. Das Ergebnis dieser Prüfung öffnet dann den Weg zu einer theoretischen Konsolidierungsarbeit.

Il webcasting come strumento per la distribuzione di prodotti educational e la circolazione dei saperi. / The webcasting as a tool for the distribution of educational products and circulation of knowledge.

Mobile assistive robotics can play a key role to improve the autonomy and lifestyle of patients. In this context, RoboEye project aims to support people affected by mobility problems that range from very impairing pathologies (like ALS, amyotrophic lateral sclerosis) to old age. Any severe motor disability is a condition that limits the capability of interacting with the environment, even the domestic one, caused by the loss of the control on our own mobility. Although these pathologies are relatively rare, the number of people affected by this disease are increasing during the years. The focus of this project is the restore of persons’ mobility using novel technologies based on the gaze on a power wheelchair designed to enable the user to move easily and autonomously inside his home. A novel and intuitive control system was designed to achieve such a goal, in which a non-invasive eye tracker, a monitor, and a 3D camera represent some of the core elements. The developed prototype integrates, on a standard power wheelchair, functionalities from the mobile robotics field, with the main benefit of providing to the user two driving options and comfortable navigation. The most intuitive, and direct, modality foresees the continuous control of the frontal and angular velocities of the wheelchair by gazing at different areas of the monitor. The second, semi-autonomous, enables the navigation toward a selected point in the environment by just pointing and activating the wished destination while the system autonomously plans and follows the trajectory that brings the wheelchair there. The main goal is the development of shared control, combining direct control by the user with the comfort of autonomous navigation based on augmented reality markers. A first evaluation has been performed on a real test bed where specific motion metrics are evaluated. The designs of the control structure and driving interfaces were tuned thanks to the testing of some volunteers, habitual users of standard power wheelchairs. The driving modalities, especially the semi-autonomous one, were modelled and qualified to verify their efficiency, reliability, and safety for domestic usage.