1,721,555 research outputs found
A Survey on Roman Engineers and Their Machines
No full textIn this paper we have presented a brief account of Roman machines by looking at the historical development of a technical culture and its practice. A few examples of designer personalities and machine designs are discussed with the aim to illustrate the specific professional approach that made the Roman Engineering very successful from practical point of view, although only few theoretical works were produced
Ricostruire, classificare e divulgare: Bernard Forest de Bélidor e Giuseppe Antonio Borgnis manualisti della meccanica
No full textThe treatise work on machines has experienced a considerable development during
the Industrial Revolution as a result of the accumulation of science and technology
of machine engineering. Fundamental contributions for technical treatises with modern
approaches can be recognized in the handbooks by Bélidor and Borgnis since
they show a significant improvement of the technical treatises. In this paper their
handbooks are presented also from historiographical perspective and with a comparative
analysis in order to emphasize their significance both in the history and
techniques of machines
Modello di scocca per dita artificiali
No full textModello di una scocca per dita artificiali pensata per l’estetica e la protezione di strutture di dita artificiali antropomorfe. La scocca è costituita da una struttura specificamente pensata per contenere al suo interno componentistica di cablaggio, attuazione, e sensoristica necessaria al funzionamento di dita artificiali. La sua forma è realizzata con quattro segmenti modulari a forma antropomorfa per rispondere in maniera efficiente alle diverse esigenze motorie e strutturali delle parti di dita artificiali. In particolare, ciascun segmento è disegnato con forma e funzionalità in funzione di uno specifico segmento strutturale del dito artificiale sia per dare forma antropomorfa che per protezione delle parti tecnologiche del sistema artificiale. Oltre alla forma, il modello è caratterizzato da colorazioni che possono essere particolarizzate in varie soluzioni per specifiche esigenze estetiche sia in termini di accettazione psicologica da parte di utenti in applicazioni uomo-macchina del dito artificiale che in adeguamento alla colorazione richiesta per applicazioni specifiche
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
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Innovare lo scenario della pubblicazione scientifica in design. Progettare “living publications”
No full textIl saggio presenta un progetto di ricerca in corso volto a generare conoscenza e innovare le modalità e i formati di pubblicazione scientifica e accademica della ricerca in design. La trasformazione digitale e il paradigma dell’open access hanno un notevole impatto sulla circolazione di produzione scientifica di alta qualità a livello globale: la sfida è realizzare forme innovative di comunicazione accademica, di grande impatto ed efficacia, pur mantenendo rigore e autorevolezza. In questo contesto anche la pubblicazione scientifica del design sta assumendo nuove forme e obiettivi, per cui la disciplina del design può essere un campo cardine per la sperimentazione e la discussione di nuovi formati di pubblicazione. Il saggio presenta la proposta di Living Publications, che, a partire da una mappatura di progetti esistenti, e dalla riprogettazione del ciclo di vita di una pubblicazione, supporta la visione di scenari futuri dell’editoria scientifica e lo sviluppo di un prototipo sperimentale nell’ambito del design
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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