Album prefaces and other documents on the history of calligraphers and painters. Leiden, Brill, 2001, 103 p.

Treize textes en persan accompagnés de leur traduction en anglais sont présentés dans cet ouvrage. Ils se réfèrent aux artistes des cours princières de la Perse des Timūrides et des Safavides, auxquels s’ajoutent deux rapports d’ambassade et une généalogie de la maison de Timūr par un de ses descendants. Ce recueil s’adresse autant aux historiens de l’art intéressés par les sources écrites sur l’art et les artistes, qu’aux historiens de la Perse et de ses relations extérieures avec la Chine e..

Prefacing the Image : The Writing of Art History in Sixteenth-Century Iran. Leiden, Brill, 2001, 272 p.

« Voici un livre sur les préfaces d’albums [de calligraphies, de miniatures et d’enluminu­res] (dībāče), catégorie importante mais négligée de source, qui note les noms des maîtres de la tradition artistique persane et les organise dans une histoire de l’art. Les préfaces expriment aussi le regard que porte une culture sur les procédés, principes et pratiques de l’art et donnent une idée de quelques-uns de ses critères de jugement. Normatives à plusieurs niveaux, elles définissaient des canon..

IRANCARTO : Diffuser l'information spatiale pour analyser des questions controversées

International audienceSince 1966, the Statistical Center of Iran publishes very detailed data at detailed scales (villages neighborhoods), but these data have rarely been analyzed from a geographical point of view. The common discourse about the territory is dominated by a discourse assimilating territory with ethnicity, or social categories. These images of the 1950s are challenged by migration and socio-political changes. The public and even the analysts often hide or ignore the new shapes of territories which are a major challenge for a better understanding of the current geography of Iran and of the new conflicts or synergies. The website Irancarto open in October 2011 (CNRS Research team " Iranian and Indian Worlds " , Paris) provides the maps available (Atlas and various studies), and seeks to facilitate scientific exchange and international collaborations, especially Iranian researchers, in order to involve with more efficiency the territories in the debates. This presentation introduces the new trilingual web site Irancarto (English, French, Persian), and some examples the role of spatial analysis to understand controversial political events (electoral geography) or new social realities (demographic opposition center / periphery, the emerging suburbs).Depuis 1966 le Centre de Statistique d'Iran publie des informations très détaillées à des échelles fines (villages quartiers), mais ces données ont rarement été analysées du point de vue géographique. Le discours public sur le territoire est dominé par une doxa assimilant un territoire à une ethnie, ou à des catégories sociales. Ces images des années 1950 sont remises en cause par les migrations et changements sociaux-politiques. Le public et même les analystes ignorent ou occultent les recompositions spatiales dont la connaissance constitue pourtant un enjeu pour accéder à une connaissance rationnelle de la géographie actuelle de l'Iran et comprendre les nouveaux conflits ou synergies. Le site internet Irancarto ouvert en octobre 2011 (CNRS UMR Mondes Iranien et indien, Paris) diffuse les cartes disponibles (réédition d'Atlas et diverses études), et surtout cherche à faciliter les échanges scientifiques et collaborations internationales notamment avec les chercheurs iraniens, pour mieux intégrer l'analyse des territoires dans les débats en cours. La communication présentera notamment Irancarto et quelques exemples des apports et enjeux de l'analyse spatiale à la compréhension de faits politiques (géographie électorale) ou nouvelles réalités sociales controversées (opposition démographique centre/périphérie, émergence des banlieues…)

On the mechanisms governing gas penetration into a tokamak plasma during a massive gas injection

A new 1D radial fluid code, IMAGINE, is used to simulate the penetration of gas into a tokamak plasma during a massive gas injection (MGI). The main result is that the gas is in general strongly braked as it reaches the plasma, due to mechanisms related to charge exchange and (to a smaller extent) recombination. As a result, only a fraction of the gas penetrates into the plasma. Also, a shock wave is created in the gas which propagates away from the plasma, braking and compressing the incoming gas. Simulation results are quantitatively consistent, at least in terms of orders of magnitude, with experimental data for a D 2 MGI into a JET Ohmic plasma. Simulations of MGI into the background plasma surrounding a runaway electron beam show that if the background electron density is too high, the gas may not penetrate, suggesting a possible explanation for the recent results of Reux et al in JET (2015 Nucl. Fusion 55 093013)

Velocity-space sensitivity of the time-of-flight neutron spectrometer at JET

The velocity-space sensitivities of fast-ion diagnostics are often described by so-called weight functions. Recently, we formulated weight functions showing the velocity-space sensitivity of the often dominant beam-target part of neutron energy spectra. These weight functions for neutron emission spectrometry (NES) are independent of the particular NES diagnostic. Here we apply these NES weight functions to the time-of-flight spectrometer TOFOR at JET. By taking the instrumental response function of TOFOR into account, we calculate time-of-flight NES weight functions that enable us to directly determine the velocity-space sensitivity of a given part of a measured time-of-flight spectrum from TOFOR

Relationship of edge localized mode burst times with divertor flux loop signal phase in JET

A phase relationship is identified between sequential edge localized modes (ELMs) occurrence times in a set of H-mode tokamak plasmas to the voltage measured in full flux azimuthal loops in the divertor region. We focus on plasmas in the Joint European Torus where a steady H-mode is sustained over several seconds, during which ELMs are observed in the Be II emission at the divertor. The ELMs analysed arise from intrinsic ELMing, in that there is no deliberate intent to control the ELMing process by external means. We use ELM timings derived from the Be II signal to perform direct time domain analysis of the full flux loop VLD2 and VLD3 signals, which provide a high cadence global measurement proportional to the voltage induced by changes in poloidal magnetic flux. Specifically, we examine how the time interval between pairs of successive ELMs is linked to the time-evolving phase of the full flux loop signals. Each ELM produces a clear early pulse in the full flux loop signals, whose peak time is used to condition our analysis. The arrival time of the following ELM, relative to this pulse, is found to fall into one of two categories: (i) prompt ELMs, which are directly paced by the initial response seen in the flux loop signals; and (ii) all other ELMs, which occur after the initial response of the full flux loop signals has decayed in amplitude. The times at which ELMs in category (ii) occur, relative to the first ELM of the pair, are clustered at times when the instantaneous phase of the full flux loop signal is close to its value at the time of the first ELM