Tres buenas mujeres

“A menudo se reniega de los maestros supremos; se rebela uno contra ellos; se enumeran sus defectos; se los acusa de ser aburridos, de una obra demasiado extensa, de extravagancia, de mal gusto, al tiempo que se los saquea, engalanándose con plumas ajenas; pero en vano nos debatimos bajo su yugo. Todo se tiñe de sus colores; por doquier encontramos sus huellas; inventan palabras y nombres que van a enriquecer el vocabulario general de los pueblos; sus expresiones se convierten en proverbiales, sus personajes ficticios se truecan en personajes reales, que tienen herederos y linaje. Abren horizontes de donde brotan haces de luz; siembran ideas, gérmenes de otras mil; proporcionan motivos de inspiración, temas, estilos a todas las artes: sus obras son las minas o las entrañas del espíritu humano” (François de Chateaubriand: Memorias de ultratumba, libro XII, capítulo I, 1822).&nbsp

Computational Analysis of a Spiral Thermoelectric Nanoantenna for Solar Energy Harvesting Applications

Thermo-electrical nanoantennas have been proposed as an alternative option for conversion solar energy harvesting applications. In this work, the response of a spiral broadband antenna has been obtained from numerical and theoretical simulations perspectives. The results show that this device exhibits a responsivity of 20mV/W under 117W/cm2, for a single-frequency radiation. We discuss strategies for enhanced efficiency

Seebeck Nanoantennas for Infrared Detection and Energy Harvesting Applications

In this letter we introduce a new type of infrared sensor, based on thermocouple nanoantennas, which enables the energy detection and gathering in the mid-infrared region. The proposed detector combines the Seebeck effect, as a transduction mechanism, with the functionalities of the optical antennas for optical sensing. By using finite-element numerical simulations we evaluate the performance and optical-to-electrical conversion efficiency of the proposed device, unveiling its potential for optical sensing and energy harvesting applications.Comment: 4 pages, 3 figures, Invited paper at EUCAP 201

Fragmentation of magnetism in artificial kagome dipolar spin ice

Geometrical frustration in magnetic materials often gives rise to exotic, low-temperature states of matter, like the ones observed in spin ices. Here we report the imaging of the magnetic states of a thermally-active artificial magnetic ice that reveal the fingerprints of a spin fragmentation process. This fragmentation corresponds to a splitting of the magnetic degree of freedom into two channels and is evidenced in both real and reciprocal space. Furthermore, the internal organization of both channels is interpreted within the framework of a hybrid spin-charge model that directly emerges from the parent spin model of the kagome dipolar spin ice. Our experimental and theoretical results provide insights into the physics of frustrated magnets and deepen our understanding of emergent fields through the use of tailor-made magnetism.Comment: 9 pages, 5 figures. Published version available on the Nat. Comm. web site: http://www.nature.com/ncomms/2016/160513/ncomms11446/full/ncomms11446.htm

Spiral2 Project: Integration of the Accelerator Processes, Construction of the Buildings and Process Connections

TUA2C01International audienceThe GANIL SPIRAL 2 Project is based on the construction of a superconducting ion CW LINAC (up to 5 mA - 40 MeV deuteron and 33 MeV proton beams, up to 1 mA - 14.5 MeV/u heavy ion beams) with two experimental areas named S3 ('Super Separator Spectrometer' for very heavy and super heavy element production) and NFS ('Neutron For Science'), The building studies as well as the accelerator and experimental equipment integration started in 2009. The ground breaking started at the end of 2010. The integration task of the different equipments into the buildings is managed by a trade-oriented integration unit gathering the accelerator integration team, the building prime contractor and a dedicated contracting assistant. All work packages are synthesized at the same time using 3D models. 3D tools are used to carry out integration, synthesis, process connections and the preparation of the future assembly. Since 2014, the buildings and process connections are received and the accelerator installation is well advanced. This contribution will describe these 3D tools, the building construction, the process connection status and our experience feedback

"Allowing it to speak out of him": The Heterobiographies of David Malouf, Antonio Tabucchi and Marguerite Yourcenar

Under true pretences We know very little about the life of Ovid, and it is this absence of fact that has made him useful as the central figure of my narrative and allowed me the liberty of free invention, since what I wanted to write was neither historical novel nor biography, but a fiction with its roots in possible event. Thus starts the Afterword of David Malouf’s An Imaginary Life, a novel in which the poet Ovid, exiled from Rome, narrates his experience in the border outpost of Tomis, near the delta of the Danube on the Black Sea. ‘Relegated’ among the Getae at the edges of the Empire and ‘expelled form the confines of [the] Latin tongue’ (IL 26), this glittering and cynical poet undergoes a series of changes or metamorphoses. Initially pining for Rome and its sophisticated, complex language, he learns to overcome his hostility towards the barbarous people and their language, but when he discovers a wild Child that had been raised by the wolves in the forest and captures him with the intention of teaching him to speak and to be human, he soon realises that he himself has to learn from the Child another language, based not on symbolization and arbitrary convention but on an intuitive identity with things, on becoming the things signified in silence. After the death of the village’s elderly chief, which the villagers blame on the child’s demonic powers, the poet and the Child escape north across the frozen river. Ovid’s death is the poet’s final transformation, perhaps a literal metamorphosis like the ones described in Ovid’s great poem. Malouf’s Afterword concludes: My purpose was to make this glib fabulist of ‘the changes’ live out in reality what had been, in his previous existence, merely the occasion for dazzling literary display. (IL 154) Is Malouf’s novel then a fantasy inspired by ‘mere’ literary dazzle or, as ‘a fiction with its roots in possible event’, is it a work that, while not claiming to the factual accuracy of biography or the broad reliability of the historical background of a historical novel, can however still claim to be rooted in verisimilitude, in events that, although not documented, are nevertheless possible, as would be the case with a realist novel, or in Aristotelian poetics? The Afterword thematizes a tension between the desire to anchor the novel to history and the desire to free Ovid from historical necessity. How can Ovid live out ‘in reality’ the metamorphoses to which he is subjected, if metamorphoses are but the occasion for ‘literary display’? This tension also defines, more widely, the large number of novels written as if they were the autobiographies of historical personages, novels that gesture towards historical factuality and literary fictionality, towards ‘truth’ and invention, and exist under the sign of an essential structural displacement (the ‘autobiography’ is written by another) that brings to the foreground structural, narrative, and ethical issues also central to autobiography itself. (First paragraphs of submitted version