Academic literature on the topic 'Aurelio Victor'

Le sujet principal de la these est une edition critique, fondee sur une nouvelle collation des manuscrits, du liber de caesaribus de sextus aurelius victor, ecrit en 360 ap. J. C. Y est jointe une traduction originale de cette oeuvre. L'edition critique est precedee d'une etude de la tradition manuscrite fondee sur des donnees pour l'essentiel inedites. Les deux manuscrits connus, conserves a oxford et bruxelles, ont un ancetre commun, mais celui de bruxelles n'en derive qu'au deuxieme degre. Cet ancetre commun, de meme que le codex metelli, plus ancien mais ayant disparu au 16eme siecle, sont les copies d'un meme archetype interpole avec des passages de l'historia miscella. Un stemma nouveau est propose. La these se termine par deux appendices consacres, l'un aux sources et aux utilisateurs de victor, l'autre a l'influence exercee par salluste et tacite sur le style de victor<br>The main subject of the thesis is a critical edition, based upon a new collation of the manuscripts, of sextus aurelius victor's liber de caesaribus, written in 360 p. C. An original french translation of this work is added. The critical edition is preceded by a study of the manuscript tradition based on essentially unpublished facts. The two known manuscripts, kept in oxford an brussels, have a common ancestor, but that of brussels derives from il only at a second degree. This common ancestor, like the codex metelli, more ancient but having disappeared during the sixteenth century, are copies of the same archetype interpolated with excerpts from the historia miscella. A new stemma is offered. Two appendices conclude this thesis : firstly on the sources and users of victor's work, secondly on sallustius and tacitus' influence upon victor's style

This thesis presents the design and development of a novel biomimetic jellyfish robot that features ionic polymer metal composite actuators. The shape and swimming style of this underwater vehicle are based on oblate jellyfish species, which are known for their high locomotive efficiency. Ionic polymer metal composites (IPMC) are used as actuators in order to contract the bell and thus propel the jellyfish robot. This research focuses on translating the evolutionary successes of the natural species into a jellyfish robot that mimics the geometry, the swimming style, and the bell deformation cycle of the natural species. Key advantages of using IPMC actuators over other forms of smart material include their ability to exhibit high strain response due to a low voltage input and their ability to act as artificial muscles in water environment. This research specifically seeks to implement IPMC actuators in a biomimetic design and overcome two main limitations of these actuators: slow response rate and the material low blocking force. The approach presented in this document is based on a combination of two main methods, first by optimizing the performance of the IPMC actuators and second by optimizing the design to fit the properties of the actuators by studying various oblate species. Ionic polymer metal composites consist of a semi-permeable membrane bounded by two conductive, high surface area electrode. The IPMCs are manufactured is several variations using the Direct Assembly Process (DAP), where the electrode architecture is controlled to optimize the strain and stiffness of the actuators. The resulting optimized actuators demonstrate peak to peak strains of 0.8 % in air and 0.7 % in water across a frequency range of 0.1-1.0 Hz and voltage amplitude of 2 V. A study of different oblate species is conducted in order to attain a model system that best fits the properties of the IPMC actuators. The Aequorea victoria is chosen based on its bell morphology and kinematic properties that match the mechanical properties of the IPMC actuators. This medusa is characterized by it low swimming frequency, small bell deformation during the contraction phase, and high Froude efficiency. The bell morphology and kinematics of the Aequorea victoria are studied through the computation of the radius of curvature and thus the strain energy stored in the during the contraction phase. The results demonstrate that the Aequorea victoria stores lower strain energy compared to the other candidate species during the contraction phase. Three consecutive jellyfish robots have been built for this research project. The first generation served as a proof of concept and swam vertically at a speed of 2.2 mm/s and consumed 3.2 W of power. The second generation mimicked the geometry and swimming style of the Aurelia aurita. By tailoring the applied voltage waveform and the flexibility of the bell, the robot swam at an average speed of 1.5 mm/s and consumed 3.5 W of power. The third and final generation mimicked the morphology, swimming behavior, and bell kinematics of the Aequorea victoria. The resulting robot, swam at an average speed of 0.77 mm/s and consumed 0.7 W of power when four actuators are used while it achieved 1.5 mm/s and 1.1 W of power consumption when eight actuators are used. Key parameter including the type of the waveform, the geometry of the bell, and position and size of the IPMC actuators are identified. These parameters can be hit later in order to further optimize the design of an IPMC based jellyfish robot.<br>Master of Science

Um estudo historiográfico das Historiae abbreuiatae de Aurélio Vítor. Nisto consiste o presente trabalho, que procura determinar de que modo o referido historiador, no ocaso do reinado de Constâncio II, compôs uma narrativa dedicada à história do Império romano em sua totalidade. Para tanto, em primeiro lugar buscamos definir a natureza da obra. Em que pese os nítidos elementos biográficos que a integram, assim como a brevidade do texto, a obra de Aurélio Vítor deve ser pensada enquanto uma história, na medida em que o objetivo do autor se voltava para a exposição das causas que teriam condicionado o curso dos acontecimentos, da batalha de Ácio até o penúltimo ano do governo de Constâncio II. Desta forma, em um segundo momento, analisamos as estratégias de periodização e as concepções que Aurélio Vítor adotou a fim de contemplar a história imperial. As ações e o caráter moral dos sucessivos imperadores emergem nas Historiae abbreuiatae como o motor a partir do qual se movimentava a história da era imperial romana. Isto implicava, pois, o reconhecimento das oscilações que o mundo romano teria vivenciado ao longo de quase quatro séculos e as contradições que animavam a conduta das personagens históricas. Do que resultava, igualmente, na impossibilidade de se identificar um modelo ideal de imperador, em razão dos fatores e das circunstâncias distintas que marcariam o desenrolar da história do Império romano, como narrada por Aurélio Vítor.<br>A historiographical study of Aurelius Victors Historiae abbreuiatae. That is what defines the present work, which tries to ascertain how the aforementioned historian settled up a narrative about the history of the Roman Empire in the twilight of the reign of Constantius II. Therefore, we discuss at first the nature of the work. Despite the clear biographical trend we can observe in the text, as well as the brevity that characterizes it, the work of Aurelius Victor should be seen as a historical narrative since the author aimed to expose both the causes and the course of Roman imperial history, from the Battle of Actium to the last but one year of Constantius IIs reign. Thereupon we examine the strategies of periodization and the perspectives defined by Aurelius Victor in order to compose his text. In the Historiae abbreuiatae, the conduct showed by the emperors and their moral character represented the driving force of the narrative. That led the author to emphasize the ups and downs of Roman past in almost four hundred years of history. In this sense, Aurelius Victor did not lose track of some contradictions that encourage historical figures into action. That resulted in Aurelius Victors failure to identify an idealized model of Roman emperor due to distinct elements and circunstances that he himself pointed out in the course of the history of the Roman Empire.

Italiano: A partire dal 2007, nell’area di Piazza Venezia a Roma, sono stati realizzati alcuni sondaggi archeologici per la costruzione di una stazione per la Linea C della metropolitana. Nel sondaggio S14, quello realizzato nella Piazza della Madonna di Loreto, sono state trovate una serie di strutture appartenenti a diversi periodi storici:dal periodo tardo-repubblicano all’età moderna. Le strutture, appartenenti all’età adrianea, hanno aperto un intenso dibattito tra gli studiosi poiché i tecnici della Soprintendenza Speciale per i Beni Archeologici di Roma hanno proposto l’identificazione di queste strutture con quelle dell’Athenaeum dell’imperatore Adriano, un’istituzione accademica a noi nota grazie alle fonti letterarie. Purtroppo le scarse fonti a nostra disposizione, relative a questa istituzione, non hanno permesso fino ad ora di proporre un’ubicazione per l’Athenaeum di Adriano. Español: A partir del 2007, en el área de la Piazza Venezia en Roma, se realizaron una serie de sondeos arqueológicos para la construcción de una estación para la Línea C del metro. En el sondeo S14, realizado en la Piazza della Madonna di Loreto, se han encontrado una serie de estructuras pertenecientes a diversos periodos de la historia: desde el periodo tardo-republicano a la Edad Moderna. Las estructuras pertenecientes a la época adrianea han abierto un intenso debate entre los estudiosos, pues los técnicos de la Soprintendenza Speciale per i Beni Archeologici di Roma han propuesto la identificación de estas estructuras con las del Athenaeum del emperador Adriano, una institución académica conocida gracias a las fuentes literarias. Por desgracia, la ausencia de fuentes a nuestra disposición relativas a esta institución, no han permitido hasta ahora proponer una ubicación para el Athenaeum de Adriano. English: Since 2007, in the area of ​​the Piazza Venezia in Rome, a series of archaeological surveys for the construction of a station for Metro Line C were performed. In the survey S14, conducted in the Piazza della Madonna di Loreto, found a number of structures belonging to different periods of history from the late-Republican period to the Modern Age. The structures belonging to the Hadrian era have opened an intense debate among scholars, because technicians from the Soprintendenza Speciale per i Beni Archeologici di Roma have proposed the identification of these structures with the Athenaeum of Emperor Hadrian, an academic institution known through literary sources. Unfortunately, the absence of sources at our disposal concerning this institution have not allowed yet to propose a location for Hadrian's Athenaeum.