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Improvement of proton exchange membrane fuel cell electrical performance by optimization of operating parameters and electrodes preparation A.J.-J. Kadjo a, P. Brault b, A. Caillard b, C. Coutanceau c, J.-P. Garnier a, S. Martemianov a,∗ a Laboratoire d’Etudes Thermiques, UMR6608, ESIP-Université de Poitiers, CNRS, Poitiers F-86022, France b Groupe de(More)
Toxic effects of two heavy metals, cadmium (Cd) and copper (Cu), and a fungicide, diethyldithiocarbamate, have been evaluated, alone and in association, on Spirodela polyrhiza duckweed cultivated in a synthetic mineral medium and in a distilled water medium. The composition of the culture medium influenced the toxicity of the three compounds and the effects(More)
Primary amines react with two formaldehydes and compounds presenting two mobile hydrogen atoms, this reaction can be called iminodimethylation. This reaction can be used in order to perform a pharmacomodulation in the pyrimido [3,4-a]-s-triazine series. Against Epidermophyton floccosum, the activity is better when nitrogen 7 is not substituted, when the(More)
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