817 research outputs found
Preparazione e caratterizzazione di nanocompositi MWCNTs/SEBS per la realizzazione di sensori di temperatura ad uso biomedico
Durante questo studio sono state realizzate e caratterizzate, mediante varie tecniche spettroscopiche e microscopiche, delle dispersioni di MWCNTs in SEBS. Le dispersioni sono state utilizzate per la realizzazione di film termoresistivi. Tali film, deposti su apposite basette, sono stati testati nell'intervallo di temperatura 25 - 50 °C. Durante lo studio sono state variate le caratteristiche dei film per ottimizzare la risposta dei sensori con essi realizzati. Il fine ultimo è la realizzazione di un sensore usa e getta integrabile all'interno di una medicazione per il monitoraggio di ferite croniche
A Bayesian framework for optimal motion planning with uncertainty
Modeling robot motion planning with uncertainty in a Bayesian framework leads to a computationally intractable stochastic control problem. We seek hypotheses that can justify a separate implementation of control, localization and planning. In the end, we reduce the stochastic control problem to path- planning in the extended space of poses x covariances; the transitions between states are modeled through the use of the Fisher information matrix. In this framework, we consider two problems: minimizing the execution time, and minimizing the final covariance, with an upper bound on the execution time. Two correct and complete algorithms are presented. The first is the direct extension of classical graph-search algorithms in the extended space. The second one is a back-projection algorithm: uncertainty constraints are propagated backward from the goal towards the start state
Strumenti contemporanei a servizio del passato: il quartiere della Suburra a Roma tra storia e attualità
Questo scritto illustra il risultato di 3 anni di sperimentazioni e ricerche svolte in un’area urbana
di prioritaria importanza nella formazione della città di Roma troppo spesso, in ragione della sua
posizione non baricentrica rispetto all’attuale centro storico, trascurato dagli studi di settore.
L’area presa in esame è stata una porzione del centro storico: uno stralcio del rione Monti, noto
storicamente con il toponimo Suburra; nel dettaglio quella parte del Rione rimasta inclusa fra la
via Panisperna, la via Cavour e via dei Fori Imperiali, che ha conservato in modo più autentico
le caratteristiche del tessuto storico originario. La ricerca ha quindi attivato un processo di
conoscenza della città intesa come approfondimento e analisi delle trasformazioni urbane
attraverso l’indagine storico-archivistica, la lettura delle cartografie e dei documenti, lo studio
tipologico, il controllo strutturale delle architetture messo in relazione alla conformazione
geomorfologica del territorio ed alle trasformazioni subite dal tessuto edilizio. Contestualmente
all’applicazione e verifica dei dati raccolti attraverso il rilievo e la sistematizzazione grafica. Per
rendere più accessibile ed immediata la lettura di questo processo si è scelto di utilizzare la
modellazione 3D per comunicare efficacemente e rendere agevole il confronto tra le successive
epoche col fine di accogliere e dare una risposta innovativa alle istanze richieste
dall’applicazione delle ICT nella documentazione del Cultural Heritage (Horizon 2020 - ICT for
digital content and creativity). La modellazione, resa possibile dall’integrazione dei dati
desumibili dalle fonti con il rilievo diretto, è stata estesa all’intera area oggetto di studio e si è
soffermata sulla ricomposizione di determinati momenti della time-line.This paper shows the results of 3 years of research developped on a urban area of priority
importance in the formation of the city of Rome, too often overlooked by the sector’s studies
because of its not barycentric position in comparison to the actual historical center. The area is
an excerpt of the Rione Monti, historically known with the toponym Suburra; in detail that Rione portion included among via Panisperna, via Cavour and via dei Fori Imperiali, which has
preserved the original historic fabric characteristics.
The research has then enabled a process of knowledge of the city meant as analysis of urban
transformation through the historical-archival investigation, the maps and documents reading,
the typological study, the architecture's structural control, all correlated to the geomorphological
conformation of the territory and the urban farbic transformations. With the simultaneous
application and the collected data examination through the survey and the graphic
systematization.
To make the reading of this process more accessible and immediate it has been chosen to use
the 3D modeling to communicate and facilitate the comparison between the successive eras in
order to receive and give a innovative response to the instances required by the application of
ICT in the documentation of Cultural Heritage (Horizon 2020 - ICT for digital content and
creativity). Modeling, possible by the integration of the data produced from the sources with the
direct relief, was extended to the entire studied area and it’s been focused on the reconstruction
of certain moments of the timeline.Peer Reviewe
PHOTOGRAMMETRIC SURVEY AND 3D MODELING OF THE FUNERARY URN DEPICTING THE MYTH OF OENOMAUS, FOUND INSIDE THE TOMB OF THE ETRUSCAN FAMILY OF CACNI IN PERUGIA (III-I CENTURY BC)
[EN] The urn, recovered in 2013 by the Cultural Heritage's Police Command along with other 21 and with the funeral set of the
tomb of the Cacni family at Perugia, was exhibited at the Quirinale and then moved to Perugia, at the National
Archaeological Museum of Umbria. 2014. After a first attempt to survey the laser scanner, the survey, aimed at the
graphic documentation and implementation of a virtual model for the study and dissemination, has been performed with
photographic processed with software modeling structure from motion.
3D model in mesh made with the appropriate software has been cleaned of all its impurities: holes, tips, noise and rough
surfaces. To conclude the process, the mapping from photography, with high resolution textures, giving the mesh the
appearance next to the real funerary urn. The survey work on the urn of Oenomaus is a case in point, both for research
of best practices in the surveys of archaeological objects, both in the ultimate goal of the relief: not only cataloging and
knowledge, but also of divulging to a wider public.
Key words: virtual archaeology, digital archaeology, 3D reconstruction, etruscan funerary art, photogrammetry, photomodelling,
texturing, Mesh managing[ES] La urna, recuperada en 2013 por el Comando de Policía del patrimonio cultural, junto con otros 21 y con el conjunto
funerario de la tumba de la familia Cacni en Perugia, fue exhibida en el Quirinale y luego se trasladó a Perugia, en el
Museo Arqueológico Nacional de Umbría. 2014. Después de un primer intento de estudiar el escáner láser, el
levantamiento, dirigido a la documentación gráfica e implementación de un modelo virtual para el estudio y la difusión,
se ha realizado con procesado fotográfico con software de modelado structure for motion.
La malla 3D realizada con el software adecuado se ha limpiado de todas sus impurezas: agujeros, las extremidades, el
ruido y superficies rugosas. Para finalizar el proceso, el mapeo de la fotografía, con texturas de alta resolución, dando la
malla la apariencia de la urna funeraria real. El trabajo de investigación en la urna de Enomao es un ejemplo
emblemático, tanto para la investigación de las mejores prácticas en levantamiento de objetos arqueológicos, tanto en el
objetivo final del relieve: no sólo la catalogación y el conocimiento, sino también el difundir a un público más amplio.Calisi, D. (2016). PHOTOGRAMMETRIC SURVEY AND 3D MODELING OF THE FUNERARY URN DEPICTING THE MYTH OF OENOMAUS, FOUND INSIDE THE TOMB OF THE ETRUSCAN FAMILY OF CACNI IN PERUGIA (III-I CENTURY BC). En 8th International congress on archaeology, computer graphics, cultural heritage and innovation. Editorial Universitat Politècnica de València. 95-104. https://doi.org/10.4995/arqueologica8.2015.3318OCS9510
Integrating Bioindicators and Biomarkers in Aquatic Ecotoxicology: An Overview
Water is not only a commercial product, but also a common good and a limited resource that must be protected and used sustainably, in terms of both quality and quantity [...
TOWARDS A DIGITAL ARCHAEOLOGICAL ARCHIVE: THE CASE STUDY OF THE ARTEFACTS OF THE AREA OF FORI IMPERIALI
Abstract. The following research aims to exploit the low-cost technologies, for the survey and mapping of historical archaeology in the Roman context. The main purposes of the research is to implement a large-scale survey campaign to understand the geometry and the materiality of the artefacts examined. Three-dimensional survey from photography, allows an immediate mapping of the materiality, of the degradation and of the architectural elements characteristic of the architecture in question. From the model it is possible to obtain an image that is faithful to the reality that can be the basis for developments in many disciplines such as, for example, in the restoration project, for the material analysis and the mapping of the degradation. The applications for this type of mapping are numerous, one of those proposed in this research concerns the virtual musealisation of historical artifacts. More and more in recent years, museums are exploiting the capabilities of three-dimensional modeling software of architectural elements to interactively convey architectural elements. A methodology of work that in recent archaeological excavations is not based solely on the didactic divulgation of the history of a place, but during the excavation phase on the mapping and cataloging of uncovered finds.</p
THE FARMHOUSES OF THE ROMAN COUNTRYSIDE: CENSUS AND CATALOG. THE CASE OF THE ESTATE OF FARNESIANA
Abstract. Rome is one of the cities with the largest green areas in the world, spread in villas and estates, within the municipal territory. But there is also a landscape triangle that radially branches out from the historic center, including a variety of unique situations (archaeological, historical – social, settlement, agriculture ...) in the world: the Caffarella and aqueducts Park. Inside, the Farnesiana estate, Capo di Bove, it's a witness of a widespread degradation process in the Roman countryside, which requires a gradual procedure of knowledge, cataloguing, restoration and re-functioning of the historical heritage. In this regard, the research is part of a larger study project of the Department of Architecture of Roma Tre, concerning farmhouses of the Roman countryside that deal with worrying degradation conditions and which require imminent intervention.</p
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