Search results for "reconstruction"
showing 10 items of 784 documents
Old World Megadroughts and Pluvials During the Common Era
2015
An atlas of megadroughts in Europe and in the Mediterranean Basin during the Common Era provides insights into climate variability.
Climate Change: An Educational Proposal Integrating the Physical and Social Sciences
2014
Abstract The scientific community has been debating climate change for at least twenty years. The EU has recommended a set of innovative reforms to science teaching, incorporating environmental issues in the scientific curriculum, answering the need for making school a place of civic education. This paper focuses on the presentation of materials designed to foster both deep understanding of the basic concepts involved in climate change as well as critical thinking for addressing some cognitive and emotional barriers that have been proved to hinder individual behavioural reactions.
Un'occasione perduta: l'Eden Teatro Biondo di Ernesto Basile. Dai disegni di archivio alla ricostruzione digitale
2016
Il lavoro si pone come obiettivo la ricostruzione congetturale del progetto dell’Eden Teatro Biondo (1912) a Palermo di Ernesto Basile (Palermo 1857–1932) a partire dai disegni originari. L’edifico propone una tipologia che fonde cinematografo (al piano terra) e teatro (al piano superiore). Pensato su un fronte di Piazza Verdi, non sarà realizzato per i costi ritenuti troppo elevati dai committenti. Le scansioni dei disegni originari (conservati presso il Fondo Basile del Dipartimento di Architettura dell’Università di Palermo) hanno consentito la vettorializzazione piana utilizzata per l’analisi e per la modellazione 3D. Gli apparati decorativi sono stati realizzati integrando la modellazi…
TECNICHE DI RICOSTRUZIONE DELLA SUPERFICIE POSTERIORE DEL PADIGLIONE AURICOLARE E DELLA MASTOIDE CON LEMBI LOCALI
2007
B a c k g ro u n d. Reconstruction of the posterior auricular surface and of the mastoid has never been given much attention and there are no techniques described. The authors describe two techniques for reconstruction of these areas after cancer excision with local flaps. M e t h o d s . 13 patients have been treated after cancer resection with an advancement flap from the posterior auricular surface and a bilobed flap from the mastoid. R e s u l t s. All flaps healed uneventfully with a satisfactory aesthetic outcome. No relevant complications have been o b s e r v e d . C o n c l u s i o n s. Reconstruction of the posterior auricular surface and of the mastoid with the techniques describ…
Le città della Valle del Belice in Sicilia a cinquant’anni dal terremoto
2018
In seguito al drammatico terremoto che nel 1968 devastò 14 comuni della Valle del Belice, fu avviata una complessa macchina della ricostruzione, in cui le scelte non furono dettate da linee programmatiche omogenee ed univoche, determinando in alcuni casi la ricostruzione in situ dei centri distrutti, in altri il trasferimento in aree anche distanti dall’insediamento originario. La ricostruzione fu occasione per la comunità scientifica e professionale nazionale per sperimentare soluzioni progettuali che però, il più delle volte, non hanno tenuto conto della tradizione insediativa, tradendone le radici identitarie. Following the dramatic earthquake that devastated 14 municipalities in the Bel…
Rebuilding a Cultural Legacy in a New Town. Reshape Physical and Cultural Continuity between Old and New Town of Gibellina
2019
The article analyses the emblematic case of the post-earthquake reconstruction of the city of Gibellina. In the present case, the reconstruction process has led to serious errors caused by numerous wrong choices; most of these derive from the fact that the cultural heritage expressed by the places and the population was not taken into consideration. To restore the threads of memory broken by the earthquake, a research was carried out – by the writer – aimed at the reconstruction of the image of the old Gibellina; the old city, definitively erased from the ground, has been recomposed through the interpretation of the cadastral and statistical data and literary, iconographic, cartographic and…
Near field retrieval from far field using PDFT
2008
A new algorithm is applied for obtaining the near field form far field measurements. It is not only the simple DFT applied to the spectrum, but also a newer algorithm, called PDFT, which makes use of the information in the transformed domain. Its main advantage is that the resolution obtained is better than with DFT, since more information about the antenna is used. Furthermore, no iterations are applied and the best approximation in the way of minimum weighted norm is achieved.
Compensation of missing wedge effects with sequential statistical reconstruction in electron tomography.
2014
Electron tomography (ET) of biological samples is used to study the organization and the structure of the whole cell and subcellular complexes in great detail. However, projections cannot be acquired over full tilt angle range with biological samples in electron microscopy. ET image reconstruction can be considered an ill-posed problem because of this missing information. This results in artifacts, seen as the loss of three-dimensional (3D) resolution in the reconstructed images. The goal of this study was to achieve isotropic resolution with a statistical reconstruction method, sequential maximum a posteriori expectation maximization (sMAP-EM), using no prior morphological knowledge about …
Computer-assisted orientation and drawing of archaeological pottery.
2018
Archaeologists spend considerable time orienting and drawing ceramic fragments by hand for documentation, to infer their manufacture, the nature of the discovery site and its chronology, and to develop hypotheses about commercial and cultural exchanges, social organisation, resource exploitation, and taphonomic processes. This study presents a survey of existing solutions to the time-consuming problem of orienting and drawing pottery fragments. Orientation is based on the 3D geometry of pottery models, which can now be acquired in minutes with low-cost 3D scanners. Several methods are presented: they are based on normal vectors, or circle fittings, or profile fittings. All these methods see…
Hand Held 3D Scanning for Cultural Heritage: Experimenting Low Cost Structure Sensor Scan
2017
In the last years 3D scanning has become an important resource in many fields, in particular it has played a key role in study and preservation of Cultural Heritage. Moreover today, thanks to the miniaturization of electronic components, it has been possible produce a new category of 3D scanners, also known as handheld scanners. Handheld scanners combine a relatively low cost with the advantage of the portability. The aim of this chapter is two-fold: first, a survey about the most recent 3D handheld scanners is presented. As second, a study about the possibility to employ the handheld scanners in the field of Cultural Heritage is conducted. In this investigation, a doorway of the Benedictin…