2,989 research outputs found
Portraits of Leonardo da Vinci
No full textUsing an iterative method, applied to image processing, a portrait of a young man, probably a self-portrait of Leonardo da Vinci, is restored. Merging this portrait with the self-portrait in red chalk, we can have the features of a middle-aged Leonardo. This digital portrait can be compared with the image of Plato, depicted by Raphael in the Scuola di Atene, generally considered as a portrait of Leonardo. The iterative method used for the image processing had been developed by the author on previous iterative calculations used to solve the Boltzmann equatio
Introduzione. «Arti di pinna»: Leonardo Sciascia Saggista
No full textThe article presents the main theme of the XIV Sciascia Colloquium - the essay form explored by Leonardo Sciascia in his works - discussing each contribution and the focus each author chose to develop for this volume publication
Dutch space; interview with Arnaud de Jong, CEO
No full textDutch Space, the largest space company in the Netherlands and part of Airbus Defence and Space, appointed a new CEO last year. The Leonardo Times sat down with the CEO Arnaud de Jong for an interview. We discuss his career, developments in Dutch Space, his take on competition in the commercial space domain and his future outlook on European and International space markets.Aerospace Engineerin
Airborne aerospace; interview with business development manager space
No full textAirborne Composites designs and manufactures composite parts for the Aerospace, Oil & Gas, Marine and other industries since 1995. They are involved in notable hightech projects, from the Galileo Satellites, to the Gulfstream aircraft for Fokker and the ALMA astronomical telescope. The Leonardo Times sat down to talk to Sandor Woldendorp, Business Development Manager, Space division at Airborne to get an insight in the question: ‘’How do they do it?’’.Aerospace Engineerin
Crisis of Parties and Change of Party System in Italy
No full textLeonardo Morlino. Is there a crisis of democracy in Southern Europe? 30 cm. This paper is based partly on a seminar entitled Is there a crisis of democracy in Southern Europe?" presented at the Center on November 16, 1995" - T.p. Includes bibliographical references (p. 30-32
Citizen of space: Living in orbit
No full textAn interpretation of the inspiring symposium organised by de VSV 'Leonardo da Vinci'Aerospace Engineerin
Why (and how) to regulate Power Exchanges in the EU market integration context?
No full textPower Exchanges (PXs) are key market institutions in open and market-based electricity industries. This paper aims at contributing to the ongoing debate on why and how to regulate Power Exchanges in the EU market integration context. . The paper starts by stating that two different types of PXs have to be distinguished, i.e. "Merchant" PXs and the "Cost of Service Regulated" PXs. The paper continues by comparing the typical incentives of these two types of PXs to perform the basic PX tasks in an isolated national market and in a market integration context. The paper concludes by deriving from this analytical frame the most relevant regulatory actions..Regulation, Exchanges, Grid access, Power Markets.
La Roma di Mussolini: una costruzione del cinema
No full textThe paper offer to the readers the treatment and the text the author prepared to realize the documentary film, La Roma di Mussolini, produced in 2003 by the Istituto Luce. It opens with a discussion of fascist newsreels and their relationship with the public. Then in an examination of the entire production of the period, the author propose the thesis that fascist newsreels on the items of modernization of city have had in Italy a similar rule than in the rest of Europe: the building of a new social and urban culture.
(v. anche La Roma di Mussolini, soggetto e testi di Leonardo Ciacci, a cura di Leonardo Tiberi, DVD durata 76 minuti con sottotitoli in italiano e inglese, produzione Istituto Luce, Roma, 2003
Recensione dell'articolo: (Miyazawa, Masakiyo - " Light tail asymptotics in multidimensional reflecting processes for queueing network " - TOP 19 (2011), no.2, 233–299.)
No full textIn this paper the author studies the stationary distribution of a class of discrete time reflecting processes which are defined on a multidimensional nonnegative space. The focus is on studying performance evaluation of queuing network models subject to specific conditions such as the so-called heavy traffic condition. In this context the author also offers a wide overview that describes the current approaches. Leonardo Pasin
Investigation of Seasonal Variation in Fatty Acid and Mineral Concentrations of Pecorino Romano PDO Cheese: Imputation of Missing Values for Enhanced Classification and Metabolic Profile Reconstruction
No full textSeasonal variation in fatty acids and minerals concentrations was investigated through the analysis of Pecorino Romano cheese samples collected in January, April, and June. A fraction of samples contained missing values in their fatty acid profiles. Probabilistic principal component analysis, coupled with Linear Discriminant Analysis, was employed to classify cheese samples on a production season basis while accounting for missing data and quantifying the missing fatty acid concentrations for the samples in which they were absent. The levels of rumenic acid, vaccenic acid, and omega-3 compounds were positively correlated with the spring season, while the length of the saturated fatty acids increased throughout the production seasons. Concerning the classification performances, the optimal number of principal components (i.e., 5) achieved an accuracy in cross-validation equal to 98%. Then, when the model was tasked with imputing the lacking fatty acid concentration values, the optimal number of principal components resulted in an R2 value in cross-validation of 99.53%
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