186,284 research outputs found
Ruscelli maestro di "cifre"
No full textStudio delle teorie crittografiche e della scrittura di G. Ruscelli nel panorama grafico del Cinquecento
Distinguere i "dotti da gl'indotti". Ruscelli e le antologie di rime
No full textIl saggio prende in analisi la figura del poligrafo Girolamo Ruscelli quale allestitore di sillogi liriche, a partire dalle prime raccolte edite all'arrivo a Venezia, sino alla più importante antologia, intitolata "I fiori". Di quest'ultima raccolta si studiano le relazioni con gli scritti teorici e con il rimario, parte di una comune strategia editoriale e culturale; sono poi prese in esame le modalità di costitutizione delle silloge liriche, compreso il "Tempio per Giovanna d’Aragona"
La Geografia di Claudio Tolomeo alessandrino
No full textMarca tip. en las tres portsSegunda fecha consta en ports. de las obras de Ruscelli y MoletiSign.: *-**\p4\s, A-H\p4\s, A-Z\p4\s, Aa-Xx\p4\s, A-Z2, Aa-Dd2, [cruz griega]2, A-Z2, Aa-Oo2; [alfa]-[eta]\p4\s, A-G\p4\s, H\p6\sError de pag., repite las p. 253-254Las obras de Ruscelli y Moleti con sign. y port. propiasLas h. de mapas son grab. calc., a doble página, con explicación al versoLos 65 mapas (A-Z\p2\s, Aa-Dd\p2\s, [cruz griega]\p2\s, A-Z\p2\s, Aa-Oo\p2\s) son grab. calc. a dos h. con el texto explicativo en el recto de la primera y verso de la segundaLas il. son grab. xil.; Ptolomeo observando el cielo con instrumentos cartográficos, en h. *\b2\sEspositioni et Introduttioni Universali / di Girolamo Ruscelli sopra tutta la Geografi di Tolomeo con XXXVII noue Tauole in istampe di rame così del mondo conosciuto da gli antichi, come del nuovo. Con la carte da navicare, & con più altre cose intorno alla Cosmografia, così per mare, come per terra, p. XXXXX; Discorso / di M. Gioseppe Moleto ... Nel quale con uia facile & brieue, si dichiarano & insegnano tutti i termini, & tutte le regole appartenenti alla Geografia, p. XXX
Elastic QoS Scheduling with Step-by-Step Propagation in IEEE 802.11e Networks with Multimedia Traffic
No full textThe spreading diffusion of wireless devices and the crowded coexistence of multimedia applications greedy of bandwidth and with strict requirements stress the service provisioning offered by wireless technologies. WiFi is a reference for wireless connectivity and it requires a continuous evolution of its mechanism in order to follow increasingly demanding service needs. In particular, despite the evolution of physical layer, some critical contexts, such as industrial networks, telemedicine, telerehabilitation, and virtual training, require further refined improvements in order to ensure the respect of strict real-time service requirements. In this paper an in-depth analysis of Dynamic TXOP HCCA (DTH) MAC enhanced centralized scheduler is illustrated and it is further refined introducing a new improvement, DTH with threshold. DTH and DTH with threshold can be integrated with preexisting centralized schedulers in order to improve their performances, without any overprovisioning that can negatively impact on the admission control feasibility test. Indeed, without modifying the centralized scheduler policy, they combine together the concepts of reclaiming transmission time and statistical estimation of the traffic profile in order to provide, at each polling, an instantaneous transmission time tailored to the variable traffic requirements, increasing, when necessary, the service data rate. These mechanisms can coexist with advanced physical layer-based solutions, providing the required service differentiation. Experimental results and theoretical analysis, based on elastic scheduler theory, show that they are effective especially in the case of Variable Bit Rate traffic streams in terms of transmission queues length, packets loss, delay, and throughput
Energy harvesting for on-board railway systems
No full textGreenhouse effect due to CO2 emission is a global emergency issue affecting all human activities, including transportation systems. With the aim of reducing greenhouse gas emissions of the transport systems, the evolution of railway systems is toward environmental sustainability and energy efficiency. In this paper, a study about the use of energy harvesting to integrate the powering system of trains is presented. Currently available technologies are analyzed and photovoltaic systems are selected being technologically mature, since until now only big solar plants are considered as energy source for railways, and few studies have investigated solutions local to the trains. However, these studies date back to the early 2000s when photovoltaic technology was not sufficiently mature for this field of application. Taking advantage from the technology evolution the presented evaluation show by simulation that the electricity production can be increased until 400% with respect to the early 2000s. Furthermore, simulation results show that new power optimization solutions based on micro-inverters and on decoupling the PV modules of a string allow overcoming the limitation due to not optimal panel orientation on the train roof, train movement and shadows, increasing the production from 2 to 25%. The proposed approach can make the railway system more attractive for users sensitive to environmental issues and can promote intermodal connections with other green solutions for urban and local transport
Cloud Networks for ERTMS Railways Systems (Short Paper)
No full textEuropean Rail Traffic Management System(ERTMS) efficiently manages and schedules the trainsguaranteeing passengers safety and service constraints andmaximizing railways capacity. The management system isresponsible of the elaboration needed to control the trainscirculation and to derive the necessary commands for trainsand trackside actuators such as railroad switches. Theseoperations need heavy computational resources and require anexchange of information between trains, trackside equipmentsand elaboration components. Currently the managementsystem is hosted in the Central Control Rooms that centrallymanage and supervise trains traffic of different geographicalareas. This paper proposes a new paradigm about the executionof the ERTMS management activities taking advantage fromcloud networks. It suggests to distribute among cloud resourcesthe computational load due to the elaboration of the collecteddata and the derivation of required commands for trains andactuators. This can make possible a proactive approach tothe trains management, suitable not only to consider the datasent by the trackside equipments, but also the informationdirectly collected onboard of the train. Despite trackside dataare considered by the management system, actually they arenot integrated with onboard real-Time data that are sent tothe ground system for diagnosis purposes. These two sourcesof information can be jointly used to simulate in advance thetrain transit, deduce possible delays and anomalies and moreefficiently manage the trains circulation
Orbis descriptio [cartographic material].
No full textDouble hemispherical map of the world with relief shown pictorially.; Title at head of map: Descrittione dell'Europa. Libro Primo.; Text on verso.; "State 2 of the double-hemispherical world map of 1561 published by Girolamo Ruscelli".; Plate, p. 10 from: Geografia di Tolomeo ... nuovamente ampliata da Gios.; Shirley, 217.; Also available in an electronic version via the Internet at: http://nla.gov.au/nla.map-rm2557
Portugal. Mapas generales. ca. 1574
No full textAl verso: "D'Europa Tavola Seconda Antica"Márgenes graduados. Red hidrográfica. Relieve por montes de perfil y sombreado. Ciudades representadas por conjuntos de edificaciones según su importanciaDatos de publicación tomados del catálogo del libreroProbablemente este mapa se publicó incluido en la "Geographia" de Ptolomeo editada por G. Ruscelli e impresa por G. Ziletti en Venecia, 1564, 157
Ruscelli e i lirici napoletani: tracce di antigrafi perduti nel transito da Napoli a Venezia
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