Search results for " drawing"
showing 10 items of 300 documents
The History of Art that grows on trees. Art experience trough drawing, re-drawing and someone else’s drawing.
2018
The paper tells about an art education project addressed to the students of the Faculty of Education but also to the teachers in service in schools as a reflection on the role of drawing in art education. The aim is to accompany the participants into an “immersion” within the art world, and in particular the relationship between art and nature (one of the possible attitudes of art towards nature) to overcome prejudices and stereotypes often perpetuated in the drawing education. A form of education about the look passing through a first phase of activation of the cognitive transfer, a second one of “entry” into the work of art, and ends in a third one that, through the graphic medium, the dr…
Una chiesa scomparsa “dentro della nuova, assai più magnifica”. Progetti e ricostruzioni della cattedrale di Mdina tra Medioevo ed Età Moderna
2023
A corpus of drawings attributable to the seventeenth and eighteenth centuries, and preserved in the Diocesan archive of Mdina, allows us to better understand the reconstruction of the Cathedral of Malta after the earthquake of 1693, which damaged the medieval building. This had already been interested, a few years earlier, bu some works that had affected the presbytery area. The survey and project drawings, partly published but never studied in depth, offer valuable information on the medieval church and on the transformation process, on the relationship between the pre-existing buildings and the new projects. Starting from the available drawings, and with the support of documentary data an…
Verso una dimensione narrativa delle mappe
2021
Tra il pensiero e la costruzione dell’architettura il disegno ha un ruolo baricentrico per connettere i diversi protagonisti di una realizzazione e per coinvolgere la collettività facendo percepire inedite prospettive. La scrittura si rivela utile per esplicitare ciò che nella grafica è sotteso e per stabilire un ordine nuovo nel ragionamento progettuale. I rapporti fra segni e significati si moltiplicano nei sistemi informativi recenti in cui si ha la sensazione di poter dire moltissimo (dati numerici e spaziali) ma a volte sfugge quella sintesi indispensabile per una interpretazione concreta, finalizzata alla costruzione di possibili esperienze fisiche. Per l’esplorazione dell’uso di dive…
Il fondo Maria Del Re e l’insegnamento della Geometria nell’Universita’ di Napoli negli anni Venti e Trenta del Novecento
2014
Drawings for engineering
2012
In the representation of knowledge can not miss all those geometric, static, functional, and specialized notions in infrastructures that characterize the shape of a Civil Engineer. We take this opportunity to show how complex the representation of a hydraulic overflow, how bold is the company wanting to bring the cross sections, the view from above, the longitudinal section. And, yet how essential is the knowledge of descriptive geometry to determine the intersections of complex surfaces, the application of engineering has great feedback. An engineer must know how to read and know how to make a drawing, must learn to identify the main characteristics, must be able to focus on the goals and …
Prediction of Ductile Fractures Occurrence in Deep Drawing of Square Boxes
1996
Abstract The authors propose a new approach for the prediction of tearing in the deep drawing process of square boxes. Such an approach is based on a damage mechanics formulation and in particular on the yield condition for damaging materials proposed by Tvergaard and Needleman and on a strain controlled nucleation model. The flow rule associated to the yield condition is introduced in a finite element explicit formulation founded on the solution of the dynamic equilibrium equation and on an explicit time integration scheme. By this way the developed model allows to calculate the void volume fraction value during the deep drawing process of square boxes and consequently to predict the insur…
Tabu search for min-max edge crossing in graphs
2020
Abstract Graph drawing is a key issue in the field of data analysis, given the ever-growing amount of information available today that require the use of automatic tools to represent it. Graph Drawing Problems (GDP) are hard combinatorial problems whose applications have been widely relevant in fields such as social network analysis and project management. While classically in GDPs the main aesthetic concern is related to the minimization of the total sum of crossing in the graph (min-sum), in this paper we focus on a particular variant of the problem, the Min-Max GDP, consisting in the minimization of the maximum crossing among all egdes. Recently proposed in scientific literature, the Min…
Non-Model Based Method for an Automation of 3D Acquisition and Post-Processing
2008
Most of the automation for 3D acquisition concerns objects with simple shape, like mechanical parts. For cultural heritage artefacts, the process is more complex, and it doesn't exist general solution nowadays. This paper presents a method to generate a complete 3D model of cultural heritage artefacts. In a first step, MVC is used to solve the view planning problem. Then, holes remaining in 3D model are detected, and their features are calculated to finish acquisition. Different post-processing are applied on each view to increase quality of the 3D model. This procedure has been tested with simulated scanner, before being implemented on a motion system with five degrees of freedom.
Recent Developments in the Design and Control of Cold Forming Processes
1999
In the paper some problems of process design and control in metal forming are taken into account. In particular as far as the former aspect is concerned, the problem of the preform design in cold forging is analyzed: the contributions offered by several researchers are presented and an innovative design procedure is proposed. As well, the suitability of closed-loop control systems for metal forming applications is discussed with particular reference to sheet stamping operations; again, after an overview of the state of the art, the advantages offered by the application in this field of Artificial Intelligence techiniques is pointed out.
A survey on geometrical reconstruction as a core technology to sketch-based modeling
2005
In this work, the background and evolution of three-dimensional reconstruction of line drawings during the last 30 years is discussed. A new general taxonomy is proposed to make apparent and discuss the historical evolution of geometrical reconstruction and their challenges. The evolution of geometrical reconstruction from recovering know-how stored in engineering drawings to sketch-based modeling for helping in the first steps of conceptual design purposes, and the current challenges of geometrical reconstruction are discussed too.