1,401 Hits in 1.1 sec

Transformations of Chinese motifs in the works of François Bouchet and in European Architecture

Юлія Івашко, Чан Пен
2020 Artistic Culture Topical Issues  
., Chang Peng Transformations of Chinese Motifs in the Works of François Bouchet and in European Architecture Abstract.  ...  The most characteristic example are the works of the French artist François Bouchet, whose paintings express the image of China for Europeans.  ... 
doi:10.31500/1992-5514.16.2020.205258 fatcat:cner6iagffaqlovb7752byo56q

The COBRAS/SAMBA CMB Project [article]

François R. Bouchet, Richard Gispert, Jean-Lou Puget
1995 arXiv   pre-print
COBRAS/SAMBA is a second generation satelitte dedicated to mapping at high resolution and sensitivity the anisotropies of the Cosmic Microwave Background (CMB). This mission is in the assessment study phase (A) at ESA, with a decision expected mid 1996, for a launch around 2003.
arXiv:astro-ph/9507032v1 fatcat:h3hev7tw3bfa3ebdecsobauu6q

L'Université face au déferlement numérique

Thomas Bouchet, Guillaume Carnino, François Jarrige
2016 Variations  
Variations, 19 | 2016 Thomas Bouchet, Guillaume Carnino et François Jarrige L'Université face au déferlement numérique 1 L'université française et la science qu'elle produit connaissent des mutations  ...  À propos des auteurs Thomas Bouchet Maitre de conférences en histoire du XIXe, Université de Bourgogne, centre Georges Chevrier Guillaume Carnino Docteur en histoire, post-doctorant, Université technologique  ... 
doi:10.4000/variations.740 fatcat:p5l6ss7yzfeqnj57uwbbgr3vxq

Lyman Alpha Forest Clustering Using Cell Counts Statistics [article]

François R. Bouchet, Avery Meiksin
1995 arXiv   pre-print
We present a novel technique for calculating forest correlations based on cell counts. It is applied to the line lists from 7 QSOs observed at high resolution (Δ v<25). Two spectra (Q0055-259 and Q0014+813) appear to be sufficiently free of biases to obtain meaningful estimates. We find for both positive correlations, with a maximum of 0.5-1, on the scale of 0.5-3 h^-1 Mpc (comoving), or 100-600, which is consistent with the primordial power spectrum inferred from optically-selected galaxy
more » ... elected galaxy surveys. Strong evidence for anti-correlation on the scale of 3-6 h^-1 Mpc is also found. If this first detection of anti-correlations is physical, additional factors to gravity may play a role in determining the clustering of the forest on comoving scales > 3h^-1.
arXiv:astro-ph/9507033v1 fatcat:4tuqcbdxqff5xghnxwxi4hid7a

Regards d'artistes contemporains : entretien avec François Mayu, sculpteur et peintre

François Mayu, Renaud Bouchet
2016 Annales de Bretagne et des pays de l'Ouest  
, université du Maine (Le Mans) au cours de l'hiver [2015] [2016] Renaud Bouchet -La création de vos sculptures constituées à partir de scories métalliques de la Grande Guerre, et en particulier de fragments  ...  Figure 64 -Figure 65 - 6465 © François Mayu, Chemin des Dames n o 36, 2010, huile sur toile, 60 x 120 cm, coll. part. © François Mayu, Chemin des Dames, 2015, huile sur toile, 73 x 116 cm, coll. part.  ... 
doi:10.4000/abpo.3413 fatcat:5pbwx6snazfj5hhr45d6tvh2ay

CMB Anisotropies, Cosmological Parameters and Fundamental Physics: Current Status & Perspectives [article]

Francois R. Bouchet
2004 arXiv   pre-print
I describe briefly the Cosmic Microwave Background (hereafter CMB) physics which explains why high accuracy observations of its spatial structure are a unique observational tool both for the determination of the global cosmological parameters and to constrain observationally the physics of the early universe. I also briefly survey the many experiments which have measured the anisotropies of the CMB and led to crucial advances in observational Cosmology. The somewhat frantic series of new
more » ... eries of new results has recently culminated with the outcome of the WMAP satellite which confirmed earlier results, set new standards of accuracy, and suggested that the Universe may have reionised earlier than anticipated. Many more CMB experiments are currently taking data or being planned, with the Planck satellite on the 2007 Horizon poised to extract all the cosmological information in the temperature anisotropies, and foray deeply into polarisation.
arXiv:astro-ph/0401108v1 fatcat:kqz3vyicvjew5cjhwuuyzuttn4

Planck 2015 results and inflation

François R. Bouchet
2015 Comptes rendus. Physique  
The Planck mission prime objective was a very accurate and complete measurement of the temperature anisotropies of the Cosmic Microwave Background (CMB). Cosmological results from the intensity data of the nominal mission of 15 months duration were disclosed on March 21 st , 2013. Fortunately, the satellite kept acquiring data for at least twice longer, and we announced in February 2015 new results based on all the data acquired, both in temperature and polarisation. I provide a short overview
more » ... e a short overview of the latest data and findings of most interest for inflation, as a basis for the other contributions to this volume. This overview is entirely based on the published or submitted works of the Planck collaboration.
doi:10.1016/j.crhy.2015.11.001 fatcat:inbvmxiqj5a2xlaldlqvjf4vbq

Satires et parodies du Moyen Âge grec, introd., trad. et notes de René Bouchet

François Ploton-Nicollet
2013 Journal of Medieval and Humanistic Studies  
Satires et parodies du Moyen Âge grec, introd., trad. et notes de René Bouchet François Ploton-Nicollet RÉFÉRENCE Satires et parodies du Moyen Âge grec, introd., trad. et notes de René Bouchet, Paris,  ...  Or il ne serait pas impossible que ce conte byzantin ait été indirectement à l'origine de l'inspiration de La Fontaine, car on sait que celui-ci a emprunté sa matière à François Philelphe (« Le loup, le  ... 
doi:10.4000/crm.13010 fatcat:zetygophgzdrfkkwrefaer4hme

Cosmic Strings: A Problem or a Solution? [chapter]

David P. Bennett, Francois R. Bouchet
1988 The Post-Recombination Universe  
We address, by means of Numerical Simulations, the most fundamental issue in the theory of cosmic strings: the existence of a scaling solution. The resolution of this question will determine whether cosmic strings can form the basis of an attractive theory of galaxy formation or prove to be a cosmological disaster like magnetic monopoles or domain walls. After a brief discussion of our numerical technique, we present our results which, though still preliminary, offer the best support to date of
more » ... support to date of this scaling hypothesis. Talk presented at the NATO ASI, 'The post-recombination universe:
doi:10.1007/978-94-009-3035-3_45 fatcat:rdvic76cefc2lbdhzba7vczkai

Implementation of a Tree Code for Cosmology

François R. Bouchet, Lars Hernquist
1988 Symposium - International astronomical union  
We have adapted the Barnes-Hut hierarchical N-body method for cosmological applications. A detailed study of the resulting code yielded the following conclusions: it is SIMPLE, FLEXIBLE, ACCURATE, ROBUST, and EFFICIENT.
doi:10.1017/s0074180900136915 fatcat:iwzdyeokoba7zbmpb4jt7366o4

Impacts environnementaux sur l'érosion des sols au Pléistocène supérieur et à L'holocène dans le cratère de maar du lac du Bouchet (Massif central, France)

Jean-Philippe Degeai, Jean-François Pastre
2009 Quaternaire  
des dépôts lacustres du Lac du Bouchet.  ...  Fig. 1 : 1 Localisation du Lac du Bouchet sur le plateau basaltique du Devès. Fig. 1 : 1 Localization of the "Lac du Bouchet" on the Devès basaltic plateau.  ... 
doi:10.4000/quaternaire.5101 fatcat:frfg6m7xzrgjzfnm7fnyvh7v5e

Is Cosmic String Domination of the Universe Avoidable?

François R. Bouchet, David P. Bennett
1988 Symposium - International astronomical union  
We address, by means of Numerical Simulations, one of the main issues of the Cosmic String Galaxy Formation Scenario, namely the existence of a scaling solution, which is crucial to the very existence of the scenario. After a brief discussion of our numerical technique, we present our results which, though still preliminary, offer the best support to date of this scaling hypothesis.
doi:10.1017/s0074180900136162 fatcat:mr2yescuh5eenclmvq5ugx4r3a

Foregrounds and CMB experiments

François R. Bouchet, Richard Gispert
1999 New Astronomy  
r/pub/f rom users/bouchet/ .  ...  This map provides direct graphical evidence that a large fraction of the sky is quite "clean" around the degree scale [Bouchet et al., 1996b,a] . maps available in the full version at f tp : //f tp.iap.f  ... 
doi:10.1016/s1384-1076(99)00027-5 fatcat:kk4aya7u3zhg3iepys374oc7xy

5 Cosmology with the Planck Satellite: from quantum foam to the cosmic web [chapter]

François R. Bouchet
2020 Ondes, matière et Univers  
BOUCHET Résumé Cosmologie avec le satellite Planck : depuis la mousse quantique jusqu'au réseau cosmique Ebauché dans ses grandes lignes en 1992, retenu par l'Agence Spatiale Européenne en 1996, lancé  ...  Conclusions This contribution gave a short overview of the latest Planck data and findings of most interest for inflation, which are commented more in depth in Bouchet (2015) .  ... 
doi:10.1051/978-2-7598-2265-2.c009 fatcat:rztsnzy73zcipecoc3j6wgxnly

Breaking the degeneracy between polarization efficiency and cosmological parameters in CMB experiments [article]

Silvia Galli, W.L. Kimmy Wu, Karim Benabed, François Bouchet, Thomas M. Crawford, Eric Hivon
2021 arXiv   pre-print
Accurate cosmological parameter estimates using polarization data of the cosmic microwave background (CMB) put stringent requirements on map calibration, as highlighted in the recent results from the Planck satellite. In this paper, we point out that a model-dependent determination of polarization calibration can be achieved by the joint fit of the TE and EE CMB power spectra. This provides a valuable cross-check to band-averaged polarization efficiency measurements determined using other
more » ... d using other approaches. We demonstrate that, in ΛCDM, the combination of the TE and EE constrain polarization calibration with sub-percent uncertainty with Planck data and 2 with SPTpol data. We arrive at similar conclusions when extending ΛCDM to include the amplitude of lensing A_ L, the number of relativistic species N_ eff, or the sum of the neutrino masses ∑ m_ν. The uncertainties on cosmological parameters are minimally impacted when marginalizing over polarization calibration, except, as can be expected, for the uncertainty on the amplitude of the primordial scalar power spectrum ln(10^10 A_ s), which increases by 20-50 information can be fully recovered by adding TT data. For current and future ground-based experiments, SPT-3G and CMB-S4, we forecast the cosmological parameter uncertainties to be minimally degraded when marginalizing over polarization calibration parameters. In addition, CMB-S4 could constrain its polarization calibration at the level of ∼0.2 reach ∼0.06 calibrating against Planck polarization maps, whose statistical uncertainty is limited to ∼0.5
arXiv:2102.03661v1 fatcat:dj2hw76sujft5ka42ivlgtghxy
« Previous Showing results 1 — 15 out of 1,401 results