211 research outputs found
3D MODELING FOR THE KNOWLEDGE OF ARCHITECTURAL HERITAGE AND VIRTUAL RECONSTRUCTION OF ITS HISTORICAL MEMORY
The object of this paper is one of the most ancient palaces of Naples, Palazzo Penne, a fourteenth-century residential building located on a small high ground which originally was in the outer fringe of the built up area in a privileged position enabling to enjoy the landscape and gulf beauty. This building, which today is in the heart of the historical center, was the subject of an extensive analysis and documentary research, as well as of metric laser scanner survey carried out by the group researchers working at the Interdepartmental Centre of Research Urban Eco of the University of Naples Federico II. Starting from scan to bim systems the creation of a parametric model of the current state of the building is completed, by bringing the point cloud elements back to objects to which historical and construction data can be associated. Moreover starting from acquired data, the 3D model shows the reconstructive hypothesis of the original structure and the virtual reconstruction of the building based on traces found on-site and on the comparison with coeval creations allowing to properly hypothesize the design of point features
Chapter La rappresentazione del territorio peri-urbano tra city modelling, rilievo e fotografia
The 43rd UID conference, held in Genova, takes up the theme of ‘Dialogues’ as practice and debate on many fundamental topics in our social life, especially in these complex and not yet resolved times. The city of Genova offers the opportunity to ponder on the value of comparison and on the possibilities for the community, naturally focused on the aspects that concern us, as professors, researchers, disseminators of knowledge, or on all the possibile meanings of the discipline of representation and its dialogue with ‘others’, which we have broadly catalogued in three macro areas: History, Semiotics, Science / Technology. Therefore, “dialogue” as a profitable exchange based on a common language, without which it is impossible to comprehend and understand one another; and the graphic sign that connotes the conference is the precise transcription of this concept: the title ‘translated’ into signs, derived from the visual alphabet designed for the visual identity of the UID since 2017. There are many topics which refer to three macro sessions: - Witnessing (signs and history) - Communicating (signs and semiotics) - Experimenting (signs and sciences) Thanks to the different points of view, an exceptional resource of our disciplinary area, we want to try to outline the prevailing theoretical-operational synergies, the collaborative lines of an instrumental nature, the recent updates of the repertoires of images that attest and nourish the relations among representation, history, semiotics, sciences
3D MODELING AND VIRTUAL APPLICATIONS FOR THE VALORIZATION OF HISTORICAL HERITAGE
[EN] A large amount of 3D digital models, acquired with reality-based techniques or modelled with CAAD methods, are today part of archaeological studies. This new form of heritage documentation has deeply changed the traditional way of representing, studying and visualizing the remains of the past. At the same time, 3D digital documentation is rarely shared and easily accessible, so as the historical iconographic sources, text documents and other information used forinterpreting remains and for validating 3D reconstructions. This paper describes the first results of an interdisciplinary project of 3D documentation and valorization of historical heritage, carried out in the archaeological site of Pausilypon (Naples, Italy). The final aim is to realize an integrated virtual tour of the site, developed in Unity 3D, based on 3D surveying products. This tour proposes a new way of presenting and visualizing results of archaeological studies and 3D documentation, collecting and overlapping different types of data in a unique and interactive virtual environment. Besides 360° equi-rectangular panoramic image and 3D models, heterogeneous material will help users to understand the interpretative process followed for the hypothetical CAAD reconstruction. These results will be mainly shared via web, for a larger dissemination of the work and for supporting future research on the site. In addition, for promoting the knowledge of the archaeological remains, a simplified and immersive tour will be developed for Virtual Reality devices.Farella, E.; Menna, F.; Remondino, F.; Campi, M. (2016). 3D MODELING AND VIRTUAL APPLICATIONS FOR THE VALORIZATION OF HISTORICAL HERITAGE. En 8th International congress on archaeology, computer graphics, cultural heritage and innovation. Editorial Universitat Politècnica de València. 456-459. http://hdl.handle.net/10251/85988OCS45645
The Present of Architectural Drawing. Le dessin est mort, vive le dessin!
Exactly ten years ago, the Pinksummer gallery in Genoa hosted an exhibition in the Cortile Maggiore of the Palazzo Ducale in which two architects’ collectives, Gruppo A12 and Baukuh, questioned the possible future (or perhaps, more appropriately, the possible futures) of the Ligurian capital. And they did so by proposing projects and solutions that synergistically contaminated representational modes as varied as they were unusual: starting with the image chosen for the communication, namely that same angel, present in the Ribaudo family chapel of the Monumental Cemetery of Staglieno, used by the rock band Joy Division for the cover of its single Love will tear us apart. [read more
Urban design strategies for the upcycling of urban infrastructure residual pockets: 3D city modelling from open data and low-cost rapid mapping tools
This paper deals with the 3D City Modelling specific procedure developed as a tool to support strategies for urban regeneration, within the framework of the B-ROAD research project.
The B-ROAD research project, whose acronym stands for Below the Road, is developing urban design strategies for upcycling urban infrastructure residual pockets.
The B-ROAD’s methodology is conceived as research by design as it is carried out by creating pilot scenarios, disclosing the latent and still unexpressed potential of these wasted areas and displaying their potential transformations, to turn them into precious resources for the contemporary city.
The 3D City Modelling of the study area has proved to be essential and strategic yet often complex and critical as most of the spatial and architectural features of B-ROAD spaces, as well as their potential, cannot be detected nor represented through the traditional means of representation of urbanised land, as aerial survey-based representations, or GIS. Likewise, traditional, or even cutting-edge, survey techniques that can be used to acquire missing data are often costly and time-consuming, thus making it hardly impossible to achieve the purpose of extensive and deep knowledge of such a vast area. Thus, 3D City Modelling aimed at examining spaces and providing a final representation of pilot scenarios has been a crucial stage requiring a specific in-depth study
Autonomous and Human-Driven Vehicles Interacting in a Roundabout: A Quantitative and Qualitative Evaluation
Optimizing traffic dynamics in an evolving transportation landscape is
crucial, particularly in scenarios where autonomous vehicles (AVs) with varying
levels of autonomy coexist with human-driven cars. While optimizing
Reinforcement Learning (RL) policies for such scenarios is becoming more and
more common, little has been said about realistic evaluations of such trained
policies. This paper presents an evaluation of the effects of AVs penetration
among human drivers in a roundabout scenario, considering both quantitative and
qualitative aspects. In particular, we learn a policy to minimize traffic jams
(i.e., minimize the time to cross the scenario) and to minimize pollution in a
roundabout in Milan, Italy. Through empirical analysis, we demonstrate that the
presence of AVs} can reduce time and pollution levels. Furthermore, we
qualitatively evaluate the learned policy using a cutting-edge cockpit to
assess its performance in near-real-world conditions. To gauge the practicality
and acceptability of the policy, we conduct evaluations with human participants
using the simulator, focusing on a range of metrics like traffic smoothness and
safety perception. In general, our findings show that human-driven vehicles
benefit from optimizing AVs dynamics. Also, participants in the study highlight
that the scenario with 80% AVs is perceived as safer than the scenario with
20%. The same result is obtained for traffic smoothness perception
Discovering hidden architectures of ancient time: 3d data survey to reveal the myth of mithra in Santa Maria Capua Vetere
The research illustrated in this paper is part of a wider testing ground, aimed at identifying and developing processes of le arning and development taking place in archaeological contexts. These sites are investigated through the use of advanced technology, based on integrated methods of survey of new generation. The aim is to identify alternative languages of representation, able to read and to represent effectively the analyzed object and to propose alternative enjoyment systems. The case study is the Mithraeum in Santa Maria Capua Vetere, for which were carried out surveys with non-contact techniques, based on the use of instrumentations, for the acquisition of colorimetric and metric informations, that exploit a non-invasive approach. Data coming from laser scanner's sensors, combined with GPS receivers, are processed to define a three-dimensional centimetric space, in a single reference system of individual scans. Purpose of this research is to identify representation techniques able to communicate the sense of the multiple interrelations and of interferences among parties, providing the subsequent insertion of data into a wider project of cataloging, fruition and valuation of cultural heritage. The chance to diffuse Digital surveys is now a possible and implementable reality. The purpose is to spread awareness of World Heritage, in a participatory manner and based on the spiri t of knowledge, conveying all the strength of cultural content that heritage has
Influence of Different Strategies of Volume Replacement on the Activity of Matrix Metalloproteinases
Background
Excessive production of matrix metalloproteinase 9 (MMP-9) is linked to tissue damage and anastomotic leakage after large bowel surgery. Hence, the aim of this study was to verify whether different strategies of fluids administration can reduce MMP-9 expression.
Methods
In the in vitro experiment, the authors tested the hypothesis of a direct inhibition of MMP-9 by the fluids used perioperatively, i.e., lactated Ringer's solution, 3.4% poligeline, and hydroxyethyl starch 130/0.4. In the in vivo experiment, 36 patients undergoing surgery for colon cancer were randomly assigned to three groups to receive lactated Ringer's solution, poligeline, or hydroxyethyl starch. MMP-9 and tissue inhibitor of metalloproteinases were measured from venous blood samples; the MMP-9/tissue inhibitor of metalloproteinases ratio was calculated as an index of equilibrium between the action of MMP-9 and its inhibition.
Results
In the in vitro experiment, the presence of hydroxyethyl starch 130/0.4 in the MMP-9 assay system showed a strong inhibition of the enzymatic activity compared with lactated Ringer's solution. In the in vivo experiment, MMP-9 and tissue inhibitor of metalloproteinases plasma levels did not differ among the three groups at baseline, whereas those levels increased significantly at the end of surgery. At that time, the MMP-9 plasma levels and the MMP-9/tissue inhibitor of metalloproteinases ratio were significantly higher in the lactated Ringer's solution and poligeline groups than in the hydroxyethyl starch group. These results were confirmed 72 h after surgery.
Conclusions
This study demonstrates that hydroxyethyl starch 130/04 decreases the circulating levels of MMP-9 in patients undergoing abdominal surgery
Studio e rilievo tridimensionale dei resti archeologici delle fortificazioni difensive individuate presso la Penisola della Maddalena, Santander
Il presente lavoro è stato sviluppato nell’ambito della collaborazione tra il Dipartimento di Architettura dell’Università Federico II, l'Universidad de Cantabria e l'Ayuntamiento de Santander e si inserisce all’interno del più ampio progetto di Tesi di Laurea, volto alla creazione di un supporto teorico e grafico, in grado di promuovere la comprensione delle dinamiche storiche della città, partendo dallo studio dei due poli culturali di Santander, El Anillo Cultural ed il Real Sitio de la Magdalena, per approfondirne e rappresentarne gli elementi principali, quali l’Antica Muraglia Medievale, il Palazzo Reale e le Batterie Difensive, oggetto del presente articolo. Il rilievo tridimensionale dei resti archeologici delle batterie difensive, proposto per l’Ayuntamiento de Santander, si inserisce all’interno del Plan Director de la Magdalena. Il prodotto finale di questo lavoro è la localizzazione e documentazione digitale in 3D di tutte le batterie difensive, sconosciute alla quasi totalità dei santanderini, e che esistevano sulla Penisola della Maddalena prima che essa si convertisse nella sede delle vacanze estive dei Reali di Spagna nel sec. XX
- …