Search results for "object"
showing 10 items of 1888 documents
METHOD FOR DETECTING A SONIC IMPRINT OF A THREE-DIMENSIONAL OBJECT AND RELATED APPARATUS
2013
Non invasive method used to detect a “sonic imprint” of three-dimensional objects, particularly suitable for the identification and monitoring of artworks, consisting in acquiring the vibrations caused by a source of elastic waves and using a set of detectors fixed in various predetermined points of the external surface of the object. An apparatus, cheap and simple to utilize, suitable to execute this method, is also described.
Setpoints compensation in industrial processes via multirate output feedback control
2013
This paper investigates the setpoints compensation for a class of complex industrial processes. Plants at the device layer are controlled by the local regulation controllers, and a multirate output feedback control approach for setpoint compensation is proposed such that the subsystems can reach the dynamically changed setpoints and the given economic objective can also be tracked via certain economic performance index (EPI). First, a sampled-data multivariable direct output feedback proportional integral (PI) controller is designed to regulate the performance of the subsystems. Second, the outputs and control inputs of the plants at the device layer are sampled at operation layer sampling …
X-ray emission mechanisms in protostellar jets
2005
Prompted by the recent detection of X-ray emission from Herbig-Haro objects, we studied the interaction between a supersonic jet originating from a young stellar object and the ambient medium; our aim is to investigate the mechanisms causing the X-ray emission. Our model takes into account the radiative losses from optically in plasmas and Spitzer's thermal conduction including saturation effects. We explored the parameter space defined by the density contrast between the ambient medium and the jet and by the Mach number, to infer the configurations which can give rise to X-ray emission. From the models, we derived the X-ray emission as it would be observed with Chandra/ACIS-I and XMM-Newto…
Reply to the comment on “Carbonate deposition and diagenesis in evaporitic environments: The evaporative and sulphur-bearing limestones during the se…
2016
Abstract Manzi et al. (in press) took the opportunity offered by our paper to repeat again all the set of ideas supporting an interpretative model of the Messinian Salinity Crisis (MSC), a model they assert to be valid for the whole Mediterranean basin. What emerges from reading this long comment may be summarized in one criticism of our article: we have not systematically applied their interpretative model to our data! The aim of our paper was not to promote their ideas, but to submit the results of more than 20 years of field studies and petrographical and geochemical analyses on Sicilian and Calabrian sequences of the Messinian “Calcare di Base”. It is out of our purpose to enumerate aga…
QUEL LABILE CONFINE TRA ARTE E DESIGN
2019
Il design è arte? Questa domanda, che molti si pongono e alla quale non pochi hanno cercato di rispondere in modo definitivo, costituisce il filo conduttore di questo breve libro nel quale si cerca di dare al lettore una traccia per orientarsi nel mondo dell’arte e del design, spesso insidioso e/o difficilmente comprensibile. La necessita di un ripensamento dell’opera e dei ruoli dell’artista e del critico che si adatti a una realtà in trasformazione e al centro del dibattito nell’ambiente intellettuale italiano fin dall’inizio degli anni ’60 del novecento. Questione nodale e quella di definire un’arte che, per cosi dire, si trova al di là della dimensione dell’artisticità, nella prospettiv…
Slow/Fast. Piccoli oggetti al di là dell'interno
2020
Contemporary behavioural scenarios change quickly, linked to habits aimed at continuous displacements, with variable panoramas and places of reference. Human activities, traditionally related with the domestic interior, are located outside. New paces and frenetic ways of life reduce to a minimum the time dedicated to primary needs, primarily the need for eating. Lunch breaks are quick and optimised, the rituals of "eating together around the table" have changed profoundly, often relegated to a few small occasions. The result is an essential relapse into the world of objects, ready to condense the ritual of solitary consumption of the meal, in a simple and immediate, rapid gesture. At the sa…
Presentazione
2013
Il testo propone un articolato commento alle posizioni teoriche e alle linee di ricerca progettuale espresse da Michele Argentino, professore ordinario di Design a Palermo circa la necessità di riconquistare il ruolo sociale alla creatività individuale, riprendendosi il desiderio di diventare nuovamente "Homo Faber". Il testo inoltre presenta gli obiettivi della nuova collana scientifica - diretta dall'autrice - dal Titolo " Design e Contesti": intercettare ambiti di ricerca trasversali alle discipline del progetto, favorire gli intrecci tra idee progettuali e percorsi di innovazione socio-culturale, sviluppare nuove strategie produttive compatibili con i diversi aspetti della sostenibilità.
Una casa senza pareti. Visioni dal mondo del design del XXI secolo
2020
The domestic environment, as a space in continuous evolution, is called today to respond to some socio-cultural transformations, largely due to pressing technological innovations, which have profoundly changed the relationships between people and between them and the space of the house. These transformations redesign private spaces with a massive encroachment of the public sphere into the private one and vice versa, creating large areas of permeability in the confines of the house. The article analyzes some aspects of this phenomenon, intersecting the disciplinary contribution of design with the architectural and interior design, through some contemporary case studies.
Image Segmentation based on Genetic Algorithms Combination
2005
The paper describes a new image segmentation algorithm called Combined Genetic segmentation which is based on a genetic algorithm. Here, the segmentation is considered as a clustering of pixels and a similarity function based on spatial and intensity pixel features is used. The proposed methodology starts from the assumption that an image segmentation problem can be treated as a Global Optimization Problem. The results of the image segmentations algorithm has been compared with recent existing techniques. Several experiments, performed on real images, show good performances of our approach compared to other existing methods.
A cooperating strategy for objects recognition
1999
The paper describes an object recognition system, based on the co-operation of several visual modules (early vision, object detector, and object recognizer). The system is active because the behavior of each module is tuned on the results given by other modules and by the internal models. This solution allows to detect inconsistencies and to generate a feedback process. The proposed strategy has shown good performance especially in case of complex scene analysis, and it has been included in the visual system of the DAISY robotics system. Experimental results on real data are also reported.