a comprehensive study pertaining to the emulsion liquid membrane (elm) extraction process to enrich dilute aqueous solutions of silver salt is presented. the study has highlighted the importance and influence of membrane composition for maximizing the extraction of ag+ ions. the liquid membrane was made up of cyanex-302 as an extractant and the industrial solvent mainly consists of paraffinic a...

The paper examines contracts in new agricultural industries that exhibit learning-bydoing. A dynamic model analyzes a contract’s effect on production decisions, as well as investments in processing capacity and learning. The results of the model are applied qualitatively to the biomass electricity industry. Submitted by: Conrad J. Choinière Dept. of Agricultural and Resource Economics Universit...