cycle de production
111Hydrogen production — Hydrogen is commonly produced by extraction from hydrocarbon fossil fuels via a chemical path. Hydrogen may also be extracted from water via biological production in an algae bioreactor, or using electricity (by electrolysis), chemicals (by… …
112The Cremaster Cycle — Matthew Barney s Field Emblem which is a recurrent motif in all 5 films Directed by Matthew Barney …
113Centre interuniversitaire de recherche sur le cycle de vie des produits, procédés et services — Le Centre interuniversitaire de recherche sur le cycle de vie des produits, procédés et services (CIRAIG) a été fondé en 2001 sur une initiative de l’École Polytechnique de Montréal, en collaboration avec l’Université de Montréal et HEC Montréal …
114Mercury cycle — The mercury cycle is a biogeochemical cycle involving mercury. Mercury is notable for being the only heavy metal which is liquid at room temperature. It is a volatile metal and evaporates easily, going into the atmosphere.[citation needed]… …
115CNO cycle — Overview of the CNO I Cycle. The CNO cycle (for carbon–nitrogen–oxygen) is one of two sets of fusion reactions by which stars convert hydrogen to helium, the other being the proton–proton chain. Unlike the proton–proton chain reaction, the CNO… …
116Thorium fuel cycle — The thorium fuel cycle is a nuclear fuel cycle that uses thorium 232 as fertile material and uranium 233 as fissile fuel. A major advantage of the thorium fuel cycle is that production of plutonium and other long lived actinides as radioactive… …
117Post-cycle therapy — (PCT) is a drug regimen designed to stimulate the hypothalamic pituitary gonadal axis (HPTA) so that it begins to produce testosterone normally, while keeping estrogen levels low. PCT is traditionally done after a cycle of pro hormones or… …
118Human impacts on the nitrogen cycle — Agricultural and industrial nitrogen (N) inputs to the environment currently exceed inputs from natural N fixation (Galloway 2003). As a consequence of anthropogenic inputs, the global nitrogen cycle (Fig. 1) has been significantly altered over… …
119Cerium(IV) oxide-cerium(III) oxide cycle — Simplified diagram of the Cerium(IV) oxide cerium(III) oxide cycle The cerium(IV) oxide cerium(III) oxide cycle or CeO2/Ce2O3 cycle is a two step thermochemical process based on cerium(IV) oxide and cerium(III) oxide for hydrogen production.[1] …
120Coût du cycle de vie — Le coût du cycle de vie (CCV) (en anglais : life cycle cost ou LCC), dénommé également coût total de possession (en anglais : total cost of ownership ou TCO), coût global de possession[1] ou encore coût global[2], est le « coût… …
