Zobrazeno 1 - 10
of 88
pro vyhledávání: '"Gérard Villeneuve"'
Autor:
Gérard Villeneuve, Marco Daturi, Anne Le Nestour, Ronn Andriessen, Alain Demourgues, Manuel Gaudon
Publikováno v:
Inorganic Chemistry
Inorganic Chemistry, American Chemical Society, 2007, 46 (10), pp.4067-4078. ⟨10.1021/ic0624064⟩
Inorganic Chemistry, American Chemical Society, 2007, 46 (10), pp.4067-4078. ⟨10.1021/ic0624064⟩
Zn1-xCuxAl2O4 (0or = x0.30) compounds have been synthesized by polyesterification using metallic salts and annealing at low temperatures as well as by conventional solid state. XRD-powder data refinements (Rietveld method) have demonstrated that both
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::67246e30eeee62d9219c7cbe6be54aea
https://doi.org/10.1021/ic0624064
https://doi.org/10.1021/ic0624064
Autor:
Stanislav Pechev, Gérard Villeneuve, D. de Waal, H. Belmal, Pierre Gravereau, Jean-Claude Grenier, Said Benmokhtar, A. El Jazouli, Jean-Pierre Chaminade
Publikováno v:
Journal of Solid State Chemistry
Journal of Solid State Chemistry, Elsevier, 2007, 180 (2), pp.772-779. ⟨10.1016/j.jssc.2006.10.040⟩
Journal of Solid State Chemistry, Elsevier, 2007, 180 (2), pp.772-779. ⟨10.1016/j.jssc.2006.10.040⟩
The room-temperature crystal structure of a new Cu(II) oxyphosphate—α Cu0.50IITiO(PO4)—was determined from X-ray single crystals diffraction data, in the monoclinic system, space group P21/c. The refinement from 5561 independent reflections lead
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1fca1650992ae851233492133af64b64
https://doi.org/10.1016/j.jssc.2006.10.040
https://doi.org/10.1016/j.jssc.2006.10.040
Autor:
Gérard Villeneuve, Françoise Bechtel, A. Perraut, Christelle Lahaye, Pierre Guibert, M. Duttine
Publikováno v:
Radiation Measurements. 39:375-385
This study of trapped charge phenomena in flint highlights the influence of laboratory thermal annealing conditions on TL properties and age evaluation. The effectiveness of thermal zeroing of geological, or weakly heated flint, is investigated by EP
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a4c346595af4c77dc50b4a22b41293d
https://doi.org/10.1016/j.radmeas.2004.10.006
https://doi.org/10.1016/j.radmeas.2004.10.006
Publikováno v:
Journal of Non-Crystalline Solids. 323:193-199
Archaeological artefacts made of obsidian are all the more precious for archaeologists as they are witnesses of cultural, social or 'economic' relationships between prehistoric populations. The main obsidian sources reachable in these times have been
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f0892267672f213035fe182a058ddf63
https://doi.org/10.1016/s0022-3093(03)00306-5
https://doi.org/10.1016/s0022-3093(03)00306-5
Publikováno v:
Annales de Chimie Science des Matériaux. 28:135-147
L'objectif de ce travail est d'evaluer l'influence des ions Mn 2+ , Fe 2+ et Fe 3+ a differentes concentrations sur la cathodoluminescence (CL) orange de la calcite. Les resultats presentes sont bases sur l'etude de calcites synthetisees dopees avec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::617c133e1d28d5d6214fd0ce72f767c4
https://doi.org/10.1016/s0151-9107(03)00012-6
https://doi.org/10.1016/s0151-9107(03)00012-6
Publikováno v:
Comptes Rendus Géoscience
Comptes Rendus Géoscience, Elsevier, 2002, 334 (13), pp.949-955. ⟨10.1016/S1631-0713(02)01845-X⟩
Comptes Rendus Géoscience, Elsevier, 2002, 334 (13), pp.949-955. ⟨10.1016/S1631-0713(02)01845-X⟩
Natural quartz crystals coming from Madagascar, Angola, Brazil, and Spain were studied by EPR after β irradiation in order to characterise the paramagnetic centres due to impurities, and examine in which way their relative proportion could constitut
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5014dd9042e71d45105a5a21c1eb3875
https://doi.org/10.1016/s1631-0713(02)01845-x
https://doi.org/10.1016/s1631-0713(02)01845-x
Publikováno v:
IFAC Proceedings Volumes. 33:543-548
A laboratory application of a predictive control approach is presented in this paper. The controller design process relies on the C.A.C.S.D. advanced software package SIMART. This package addresses the different process design steps from the performa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ac6280b4c96708847606cda3d851b782
https://doi.org/10.1016/s1474-6670(17)37247-6
https://doi.org/10.1016/s1474-6670(17)37247-6
Publikováno v:
Applied Radiation and Isotopes. 52:229-235
Thermoluminescence of white powdered marble samples, chosen to display different EPR spectra, were studied. Two peaks at 280 degrees C and 360 degrees C can be observed among the TL glow curves while the EPR spectra exhibit two signals: the A signal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66f5acef2fd1aeedddc674e34eabe201
https://doi.org/10.1016/s0969-8043(99)00120-7
https://doi.org/10.1016/s0969-8043(99)00120-7
Publikováno v:
Archaeometry. 41:253-265
Within the context of white marble provenance research, 42 powdered white Greek marbles have been characterized using electron paramagnetic resonance (EPR) spectroscopy. Phase analysis was first carried out to separate calcitic and dolomitic marbles,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68e6b5a5f7aee97913a690419bcff9cb
https://doi.org/10.1111/j.1475-4754.1999.tb00981.x
https://doi.org/10.1111/j.1475-4754.1999.tb00981.x
Publikováno v:
Materials Letters. 18:327-330
The phosphate tavorite, LiFe(PO4)(OH, F), has been synthesized under hydrothermal pressure. Its unit cell parameters are very close to those of the natural mineral coming from pegmatites. The structure consists of chains of Fe3+ octahedra separated b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dd3eb5df9d92aeeefef3d3c5d9a68a05
https://doi.org/10.1016/0167-577x(94)90017-5
https://doi.org/10.1016/0167-577x(94)90017-5