Results 141 to 150 of about 317,326 (193)

L'Apatite Sulfo-Vanadocalcique: Preparation, Comportement Thermique

Phosphorus, Sulfur and Silicon and the Related Elements, 1989
Abstract The preparation and the thermal behaviour of sulfovanadocalcium apatite. It is possible to prepare a sulfovanadoapatite by a gas/solid reaction at 700°C in a sulfur atmosphere. The substitution of a S2- ion and a vacancy for two divalent OH− ions in the hydroxyapatite Ca10(VO4)6(OH)2 leads to the sulfoapatite Ca10(PO4)6S□.
J. L. Lacout, S. Nadir
exaly   +2 more sources

Comportement thermique d'un générateur à sorption solide

International Journal of Thermal Sciences, 1998
Abstract The thermal behaviour of a solid sorption generator of active carbon/alcohol machine, is studied during heating and cooling phases with a preheated air flow. A bicylindrical walls generator that contains 0.9 kg of a granular adsorbent in the presence of residual gas is tested during a cycle of an average duration of 3 hours; the grains of ...
Michel Feidt
exaly   +2 more sources

Comportement interfacial du lysosyme apres traitement thermique a sec

, 2009
Comportement interfacial du lysosyme apres traitement thermique a sec. 4.
Desfougeres, Yann, Jardin, Julien, Vié, Véronique, Lechevalier-Datin, Valérie, Pezennec, Stéphane, Beaufils, Sylvie, Nau, Francoise   +6 more
core   +4 more sources

Etude du comportement thermique de l'alcool diméthyl allylique

Canadian Journal of Chemistry, 1969
not available
Claude Roux, Françoise Katzanevas
exaly   +2 more sources

Comportement thermique de polyamides et polysulfonamides “semi-aromatiques”

European Polymer Journal, 1976
Resume Differentes techniques (analyse thermique, dilatometrie, diffractometrie X, resonance magnetique nucleaire, spectrographie de masse, mesures electriques) ont ete utilisees pour etudier le comportement thermique de plusieurs polyamides et polysulfonamides “semi-aromatiques”. Trois phenomenes de transition ont ete mis en evidence et relies a des
G Seytre, B Chabert, J Chauchard
exaly   +2 more sources

Comportement thermique de la terre stabilisée au ciment

Revue Européenne De Génie Civil, 2001
Souhaila Boussaid, Abderrahman El Bakkouri, Hassan Ezbakhe, Taib Ajzoul, Abdelmajid El Bouardi   +4 more
exaly   +2 more sources

Comportement thermique d’une ligne de microphotodiodes

Applied Optics, 1980
The behavior of a self-scanned photodiode array when thermal generation-recombination effects are present has been studied. Our experimental results show the validity of the step junction theoretical approach to this problem and that the linearity of the response in the presence of strong thermal contributions is well verified.
P, Meyer, J, Bures
openaire   +2 more sources

Comportement thermique du difluorodioxophosphate ferreux

Journal of Thermal Analysis, 1994
Difluorodioxophosphates may be used as ceramic phosphate precursor, and their thermal behaviours are very important. In this paper we study by TG and DTA the thermal stability for iron(II) salt. In argon atmosphere, we obtain in a first time the melting of salt at 240°C then the classical breaking up into solid orthophosphate and POF3 exhaust.
P. Vast, A. Semmoud
openaire   +1 more source

Comportement thermique d’une PEMFC. Simulation et contrôle

Journal Européen des Systèmes Automatisés, 2014
no ...
Abdelkrim Salah, Rachid Outbib, Jaafar Gaber   +2 more
openaire   +3 more sources

Etude du comportement thermique des hexitols

Thermochimica Acta, 1993
Dulcitol, known in a single crystalline form (hereafter called I), in fact exhibits complex thermal behaviour. A second polymorph II appears when the glassy material is allowed to crystallize at room temperature. This form always coexists with I and cannot be well characterized.
M. Siniti, J. Carré, J.P. Bastide, J.M. Létoffé, P. Claudy   +4 more
openaire   +1 more source