Considerazioni sopra alcuni supplimenti, e note di un autore fiorentino, traduttore del secondo trattato della storia di Mr. Pietro Mariette che segue le memorie degli intagliatori moderni in gemme /

Plate engraved by Brustolon.

Segni maravigliosi co' quali si e compiaciuto Iddio di autorizzare il martirio de' vener. servi di Dio Ridolfo Acquaviva, Alfonso Paceco, Pietro Berna, Antonio Franceschi, e Francesco Arana della Compagnia di Gesu succeduto nell'Indie il di 15 luglio 1583 ... /

Mode of access: Internet.

Un quadriennio di Pietro Lombardo a Padova (1464-1467) Con una appendice sulle date di nascita e di morte di Bartolommeo Bellano.

"Estratto dal Bollettino del Museo Civico di Padova, a. XVI, 1913.

Development of a new signal processing diagnostic tool for vibration signals acquired in transient conditions

The diagnostics of mechanical components operating in transient conditions is still an open issue, in both research and industrial field. Indeed, the signal processing techniques developed to analyse stationary data are not applicable or are affected by a loss of effectiveness when applied to signal acquired in transient conditions. In this paper, a suitable and original signal processing tool (named EEMED), which can be used for mechanical component diagnostics in whatever operating condition and noise level, is developed exploiting some data-adaptive techniques such as Empirical Mode Decomposition (EMD), Minimum Entropy Deconvolution (MED) and the analytical approach of the Hilbert transform. The proposed tool is able to supply diagnostic information on the basis of experimental vibrations measured in transient conditions. The tool has been originally developed in order to detect localized faults on bearings installed in high speed train traction equipments and it is more effective to detect a fault in non-stationary conditions than signal processing tools based on spectral kurtosis or envelope analysis, which represent until now the landmark for bearings diagnostics.

Unbalance identification in large steam turbo-generator unit using a model-based method

Fault identification in industrial machine is a topic of major importance under engineering point of view. In fact, the possibility to identify not only the type, but also the severity and the position of a fault occurred along a shaft-line allows quick maintenance and shorten the downtime. This is really important in the power generation industry where the units are often of several tenths of meters long and where the rotors are enclosed by heavy and pressure-sealed casings. In this paper, an industrial experimental case is presented related to the identification of the unbalance on a large size steam turbine of about 1.3 GW, belonging to a nuclear power plant. The case history is analyzed by considering the vibrations measured by the condition monitoring system of the unit. A model-based method in the frequency domain, developed by the authors, is introduced in detail and it is then used to identify the position of the fault and its severity along the shaft-line. The complete model of the unit (rotor – modeled by means of finite elements, bearings – modeled by linearized damping and stiffness coefficients and foundation – modeled by means of pedestals) is analyzed and discussed before being used for the fault identification. The assessment of the actual fault was done by inspection during a scheduled maintenance and excellent correspondence was found with the identified one by means of authors’ proposed method. Finally a complete discussion is presented about the effectiveness of the method, even in presence of a not fine tuned machine model and considering only few measuring planes for the machine vibration.

Experimental evidences in bearing diagnostics for traction system of high speed trains

Rolling element bearings are the most critical components in the traction system of high speed trains. Monitoring their integrity is a fundamental operation in order to avoid catastrophic failures and to implement effective condition based maintenance strategies. Generally, diagnostics of rolling element bearings is usually performed by analyzing vibration signals measured by accelerometers placed in the proximity of the bearing under investigation. Several papers have been published on this subject in the last two decades, mainly devoted to the development and assessment of signal processing techniques for diagnostics. The experimental validation of such techniques has been traditionally performed by means of laboratory tests on artificially damaged bearings, while their actual effectiveness in specific industrial applications, particularly in rail industry, remains scarcely investigated. This paper is aimed at filling this knowledge gap, by addressing the diagnostics of bearings taken from the service after a long term operation on the traction system of a high speed train. Moreover, in order to test the effectiveness of the diagnostic procedures in the environmental conditions peculiar to the rail application, a specific test-rig has been built, consisting of a complete full-scale train traction system, able to reproduce the effects of wheeltrack interaction and bogie-wheelset dynamics. The results of the experimental campaign show that suitable signal processing techniques are able to diagnose bearing failures even in this harsh and noisy application. Moreover, the most suitable location of the sensors on the traction system is proposed, in order to limit their number.

In situ reaction furnace for real-time XRD studies

The new furnace at the Materials Characterization by X-ray Diffraction beamline at Elettra has been designed for powder diffraction measurements at high temperature (up to 1373 K at the present state). Around the measurement region the geometry of the radiative heating element assures a negligible temperature gradient along the capillary and can accommodate either powder samples in capillary or small flat samples. A double capillary holder allows flow-through of gas in the inner sample capillary while the outer one serves as the reaction chamber. The furnace is coupled to a translating curved imaging-plate detector, allowing the collection of diffraction patterns up to 2[theta] [asymptotically equal to] 130°.

Libertad y democracia en el discurso de Monseñor de Andrea : (1932-1946)

Resumen: Los conceptos de “libertad” y “democracia” que se presentan en los discursos de Monseñor Miguel de Andrea durante los años 1932 y 1946 fueron fundamentales para elaborar una estrategia comunicacional orientada a combatir el comunismo y defender los valores republicanos. Se parte de la premisa de que el discurso es una herramienta primordial para difundir ideas y pensamientos, formar opinión y movilizar a la acción. El carácter excepcional de Miguel de Andrea en el mundo eclesiástico e intelectual de su tiempo lo convierten en una figura clave en la defensa de la Constitución y la democracia del período de entreguerras.

[R_Clavijo_SanPrudencio] Intensive Program ERASMUS: TOPCART. Geometric Documentation of the Heritage (report of activities 2010-2011)

[EN] Data contained in this record come from the following accademic activity (from which it is possible to locate additional records related with the Monastery):

Istoria delle guerre del Regno del Brasile : accadute tra la corona di Portogallo e la Republica di Olanda, composta, ed offerta alla sagra reale maesda di Pietro Secondo, Re di Portogallo & C. dal P. F. Gio. Gioseppe di S. Teresa Carmelitano Scalzo : Parte prima e Parte seconda

As negociações entre Portugal e Holanda a respeito da devolução dos territórios portugueses ocupados se desenvolveram ao longo de um decênio. As propostas iniciais de Portugal referiam-se aos territórios ocupados pelos holandeses na África e no Maranhão. Estão no raríssimo folheto.

Petrarca, el texto de Terencio y Pietro da Moglio

[ES] Terencio fue uno de los autores que mayor interés suscitaron en Petrarca desde un punto de vista filológico, y sabemos que glosó al menos alguno de los varios mss. terencianos que estaban en su biblioteca. No conservamos ningún Terencio anotado de su puño y letra, pero tenemos dos mss. que (gracias a las subscriptiones que contienen) sabemos descienden de un ejemplar petrarquesco: sin embargo, y debido sobre todo a la extraordinaria complejidad de la historia del texto terenciano, la relación entre ambos mss. no había podido aclararse ni, por tanto, se había progresado en la reconstrucción del Terencio de Petrarca. Las principales aportaciones del presente artículo podrían resumirse así: 1, se identifican nuevos mss. que descienden del Terencio de Petrarca y se demuestra (en contra de lo que habían sostenido expresamente Sabbadini y Billanovich) que la importante edición terenciana de Pietro da Moglio (muy difundida sobre todo en Italia) contiene el mismo texto que los mss. de Petrarca; 2, se sitúa el conjunto que conforman todos estos mss. en la tradición de Terencio, y esto permite mostrar que la labor filológica realizada por Petrarca sobre el texto de las comedias no consistió en intentar restablecer la colometría correcta (como venía defendiéndose hasta ahora a partir de las subscriptiones antes citadas), sino en saber apreciar un Terencio particularmente noble y, a través del cotejo con otros mss., proponer puntualmente una colometría alternativa (pues, en efecto, se han descubierto marcas métricas que parece deben asignarse a Petrarca); 3, gracias en buena parte a los mss. nuevamente identificados (muy en particular al ms. de Estocolmo), se han podido atribuir a Petrarca glosas que se encuentran en algunos de ellos, aunque distinguiendo entre apostillas del propio Petrarca y glosas que con seguridad se encontraban en su ejemplar pero que provienen de otros mss.

A investigação do crime em O dia da coruja e A cada um o seu, de Leonardo Sciascia, e em A forma da água e O ladrão de merendas, de Andrea Camilleri

Esta dissertação tem como objetivo analisar e discutir os romances-ensaios O Dia da Coruja e A Cada um o Seu, de Leonardo Sciascia, em perspectiva comparada com as narrativas policiais A Forma da Água e O Ladrão de Merendas, de Andrea Camilleri, no que diz respeito aos traços estilísticos, históricos e temáticos das obras em foco. Na pesquisa, refletiu-se sobre a utilização da estrutura do romance policial como estratégia de composição empregada pelos dois autores sicilianos, a fim de criticarem a realidade sociopolítica italiana dos últimos 50 anos. Ao final, apontam-se diferenças e identidades existentes entre os citados títulos e se conclui que, L.Sciascia, em tom amargo e incisivo, deu à matéria de seus romances um perfil tanto de narrativa ficcional quanto de ensaio político-filosófico, com o objetivo de denunciar, em seus pseudo-gialli, não apenas crimes, mas, principalmente, a falta de ética no seio da justiça de seu país. Já A.Camilleri eternizou seu perfil de escritor giallista, criando a figura do inspetor Salvo Montalbano e ao lançar mão do recurso do riso sério. Tal artifício não invalidou, ao contrário, sublinhou ironicamente a denúncia a toda forma de criminalidade, de corrupção e de abuso do poder, na fictícia Vigata, espaço imaginário representativo da Sicilia e da Itália

Semblanzas Ictiológicas: Andrea Cecilia Hued

A través de esta serie intentaremos conocer diferentes facetas personales de los integrantes de nuestra “comunidad”. El cuestionario, además de su principal objetivo, con sus respuestas quizás nos ayude a encontrar entre nosotros puntos en común que vayan más allá de nuestros temas de trabajo y sea un aporte a futuros estudios históricos. Esperamos que esta iniciativa pueda ser otro nexo entre los ictiólogos de la región, ya que consideramos que el resultado general trascendería nuestras fronteras.

Evidence for the Confraternity of S. Pietro Martire at San Zanipolo, Venice

This conference paper looks at evidence of 15th- and 16th-century saints' images on carved door frames at the church of S. Zanipolo (SS Giovanni e Paolo) in Venice, using them to help locate and reconstruct the history of the 'albergo' of the confraternity dedicated to St Peter Martyr and St Vincent Ferrer. Suggestions are made concerning the possible relationship of confraternity buildings outside a church to altars dedicated to the same saint(s) within that church.