134 research outputs found
The pictorial wit of Domenico Tiepolo
No full textThis thesis takes a new approach to Domenico Tiepolo’s (1727-1804), Divertimento Per li Regazzi (c.1795-1804), it is arguably the artists most enigmatic graphic work, which features the commedia dell’arte character Pulcinella. The drawings have hitherto been subject to rigorous connoisseurial analysis. Indeed, in his introduction to ten of the drawings in a catalogue of Italian Eighteenth-Century Drawings in The Robert Lehman Collection at the Metropolitan Museum of Art, New York, James Byam Shaw states that this particular series of drawings has now become so famous ‘that it is hardly necessary to add to the literature of the series.’1 In my opinion it would be a great pity if future generations of scholars were discouraged by this remark, for I believe the drawings still have much to ‘tell’ the contemporary art historian and would further benefit from increasingly interpretative readings. Previously, scholars have regarded Domenico Tiepolo as an imitator of his father, Giambattista Tiepolo (1696-1770), and interpreted the re-appropriation of motifs in the Divertimento as signs of old age and fatigue. I suggest, on the contrary, that in this series of drawings in particular, Domenico was an innovator.
This project carves out new territories within the study of the series in that it focuses on the playful nature of the drawings, and how the suite can be understood in relation to contemporary theory concerning games and play, and ludic musical/improvisatory forms. Additionally, the drawings are discussed as a case history in a now popular emerging dialectic on the late works of aged artists: here I consider how these drawings, often funny, poignant, sensitive and delicate reveal how the elderly painter reconciles himself not only to the passing of his own life and the extinction of his family line but to an entire political, cultural and visual tradition
Bypass Control strategy of a Pump as Turbine in a Water Distribution Network for energy recovery
No full textWater Distribution Networks (WDNs) are subject to leakages due to pipes aging, resulting in water and pressure losses. These issues are solved by installing Pressure Reduction Valves (PRVs) to decrease the pressure in WDNs. Depending on the application, PRVs can waste large amount of energy, hence the substitution of PRVs with Pumps used as Turbines (PaTs) can be a good compromise in terms of economic and technical aspects to reduce leakages and recover energy. Currently the share of PaT is not yet fully developed due to the certain technical challenges yet to be addressed, as providing an affordable control strategy closer to the real working conditions in a WDN. Hence, more experimental activities are required. For these reasons, in this work an experimental campaign was carried with the aim to investigate the behavior of a PaT according to a possible layout that could be embedded into a WDN. Firstly, the machine was characterized both in pump and turbine modes. Moreover, the machine working conditions limits have been analysed in terms of runaway and blocked-rotor curves. Then, turbine tests were carried out at constant speed with a typical hydraulic control scheme by means of a PRV installed in series to the PaT and a second one installed on a bypass. As a result, this analysis highlighted the feasibility to recover a consistent amount of hydraulic energy otherwise wasted under typical WDN daily pressure and flow rate patterns, with promising results in terms of the operating point control of the machine
On the design of a small scale tidal converter for long time deployment at sea
No full textA scale model of a kite-like converter of tidal energy, the GEMSTAR, is designed to be installed at sea for a long term deployment. The aim of the experiment is to develope a digital twin with fault detection and isolation capabilities. To this aim, a fully-functional 1:10 scale of GEMSTAR is designed, starting from measurements of tidal currents in the site of installation. Several spots were investigated searching for the most suitable current profile. The paper describes the principal issues concerning operational functions and the choice of the physical parameters to monitor during the deployment through several sensors placed on board
XII. sonetti nelle nozze del sereniss. sig. d. Francesco de' Medici gran dvca di Thoscana : ad immortal memoria della serenissima gran dvchessa la signora Bianca Cappello figlivola della Serenissima Signoria di Venetia.
No full textWoodcut device on t.p. (Fortuna).Dedication on p. [2] signed by the author, Gio. Mario Verdizzotti.Mode of access: Internet.Binding: modern brown decorated paper. Imprint, author and title written in white ink on front cover along the spine
Context Aware Recommender Systems: A Novel Approach Based on Matrix Factorization and Contextual Bias
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Open AccessFeature PaperArticle
Context Aware Recommender Systems: A Novel Approach Based on Matrix Factorization and Contextual Bias
by Mario Casillo 1,Brij B. Gupta 2,3,4ORCID,Marco Lombardi 1,*ORCID,Angelo Lorusso 1ORCID,Domenico Santaniello 1ORCID andCarmine Valentino 1,5ORCID
1
Department of Industrial Engineering, University of Salerno, 84084 Fisciano, Italy
2
Department of Computer Science and Information Engineering, Asia University, Taichung 413, Taiwan
3
Research and Innovation Department, Skyline University College, Sharjah P.O. Box 1797, United Arab Emirates
4
School of Digital, Technologies and Arts, Staffordshire University, Stoke-on-Trent ST4 2DE, UK
5
Department of Mathematics, University of Salerno, 84084 Fisciano, Italy
*
Author to whom correspondence should be addressed.
Electronics 2022, 11(7), 1003; https://doi.org/10.3390/electronics11071003
Received: 22 February 2022 / Revised: 17 March 2022 / Accepted: 18 March 2022 / Published: 24 March 2022
(This article belongs to the Special Issue Context-Aware Computing and Smart Recommender Systems in the IoT)
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Abstract
In the world of Big Data, a tool capable of filtering data and providing choice support is crucial. Recommender Systems have this aim. These have evolved further through the use of information that would improve the ability to suggest. Among the possible exploited information, the context is widely used in literature and leads to the definition of the Context-Aware Recommender System. This paper proposes a Context-Aware Recommender System based on the concept of embedded context. This technique has been tested on different datasets to evaluate its accuracy. In particular, the use of multiple datasets allows a deep analysis of the advantages and disadvantages of the proposed approach. The numerical results obtained are promising
States in 10Be populated in 6,7Li( 7Li,3,4He)10Be* reactions at 30 and 52 MeV
No full textIn this contribution, an analysis of an experiment with the 30 and 52 MeV 7Li beam and the 7LiF and 6LiF targets is given, emphasizing population of cluster states by triton transfer to 7Li. Results concerning both reactions are given and discussed. Aside from the dominant α + d structure in 6Li, a rather large overlap with 3He+t cluster configuration populates cluster states in 10Be by triton pick-up. A comparision with t pick-up from 7Li, resulting with detected α instead of 3He, with a considerably higher Q-value is given. A special attention was paid to analysing and compensating non-uniformity of thicknes of standard 50 μm thin silicon detectors used in the measurement. Rather than measuring their thickness independantly, a method was derived to calculate and compensate the thickness variation directly from the measured data
Fusion of 28Si +28Si: oscillations above the barrier and the behavior down to 1μb
No full textFusion excitation functions of light heavy-ion systems show oscillatory structures above the Coulomb barrier, caused by resonances or due to the penetration of successive centrifugal barriers well separated in energy. In heavier systems, the amplitude of oscillations decreases and the peaks get nearer to each other. This makes the measurements very challenging.
We have performed a first experiment for Si-28 + Si-28, by measuring fusion cross sections (sigma) in an energy range of similar or equal to 15 MeV above the barrier, with a small Delta E-lab = 0.5 MeV step. Three regular oscillations are clearly observed, which are best revealed by plotting the energy-weighted derivative of the excitation function. The excitation function has been recently measured down to cross sections <= 1 mu b with larger energy steps.
Coupled-channel (CC) calculations based on a shallow potential in the entrance channel are able to reproduce the oscillations. A further analysis will provide a stringent test for the calculations, in particular for the choice of the ion-ion potential, because the sub-barrier excitation function has to be reproduced as well
Li-alpha CLUSTER STATES IN B-12 USING Li-8 + He-4 INVERSE KINEMATICS ELASTIC SCATTERING
No full textThe Li-8 elastic scattering on a He-4 gas target was studied by means of the Inverse Kinematic Thick Target scattering method (TTIK) in order to investigate cluster configurations in excited states of B-12. A Li-8 beam, at E-c.m. = 10.2 MeV, was provided by the EXCYT radioactive beam facility at Catania. The beam, while passing through the helium thick target decreases its energy, thus exploring the Li-8-alpha center-of-mass energy range 2.7 MeV <= E-CM <= 9.6 MeV. Four Delta E-E silicon detector telescopes were used to detect the recoiling alpha particles. The time interval between the Li-8 passing through a on plate foil, placed at the entrance of the chamber, and the detection of the alpha particles by the Delta E detectors was also measured. The time measurement allows to disentangle elastic from reactions events, otherwise impossible from energy measurements. This can be considered as an improvement of the TTIK method. In this paper the used experimental technique and the obtained preliminary results will be presented
Upgrade of the facility EXOTIC for the in-flight production of light Radioactive Ion Beams
No full textThe facility EXOTIC for the in-flight production of light weakly-bound Radioactive Ion Beams (RIBs) has been operating at INFN-LNL since 2004. RIBs are produced via two-body reactions induced by high intensity heavy-ion beams impinging on light gas targets and selected by means of a 30 -dipole bending magnet and a 1-m long Wien filter. The facility has been recently upgraded (i) by developing a cryogenic gas target, (ii) by replacing the power supplies of the middle lenses of the two quadrupole triplets, (iii) by installing two y-steerers and (iv) by placing two Parallel Plate Avalanche Counters upstream the secondary target to provide an event-by-event reconstruction of the position hit on the target. So far, RIBs of 7Be, 8B and 17F in the energy range 3-5 MeV/u have been produced with intensities about 3 × 105, 1.6 × 103 and 105 pps, respectively. Possible light RIBs (up to Z = 10) deliverable by the facility EXOTIC are also reviewed.© 2013 Elsevier B.V. All rights reserved
Italo Calvino: um ponto de vista sobre o papel da tradução na obra literária
No full textDissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Comunicação e Expressão, Programa de Pós-Graduação em Estudos da Tradução, Florianópolis, 2011Este trabalho tem como objetivo discutir o pensamento de Italo Calvino a respeito da tradução literária. Ele estuda especificamente as reflexões do autor sobre tradução, contidas em alguns de seus ensaios críticos selecionados para esta pesquisa, e também na metalinguagem do romance Se um viajante numa noite de inverno (1990). O que se quer é identificar e discutir quais são, na concepção do autor, as potencialidades e as limitações da tradução na sua relação com a literatura.The present work intends to discuss the thought of Italo Calvino concerning translation of literary works. It specifically studies the reflections of the author on translation as expressed in his critical essays selected for this research and in the metalinguistic novel If on a winter's night a traveler (1981). The main objective of this work is to identify and to discuss the author.s conceptions on potentials and limitations of translation in its relation with literature
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