Optimalization of fodder yeast production using air enriched by oxygen. I. Mathematical model.

Production of Antihypertensive Angiotensin I-Converting Enzyme Inhibitor-Enriched Edible Yeast Using Gugija (Lycium chinesis Mill)

To produce bioactive compound enriched yeast using medicinal Gugiga (Lycium chinensis Mill), several edible Saccharomyces species were cultured in Gugija extracts added yeast extract, peptone and dextrose medium (GE - YEPD medium) at 30℃ for 24 hr, and their growth were determined. Growth of Saccharomyces cerevisiae K-7 and Sacchromyces cerevisiae ACTC 7904 were better than those of the other y...

Fodder Yeast Production: a New Approach for Distillery Vinasse Treatment

Performance Improvement of PEM Fuel Cells Using Air Channel Indentation; Part I: Mechanisms to Enrich Oxygen Concentration in Catalyst Layer

A three dimensional, compressible, steady, one phase flow of reactant-product mixture in the air side electrode of proton exchange membrane fuel cell (PEMFC) is numerically studied in this paper. The mixture is composed of three species: oxygen, nitrogen and water vapor. The performance of the cell is enhanced by partial blockage of the flow field channels. Various types of these blocks also ca...

Effect of Using Oxygen-Enriched Gas during Induration Process of Iron Ore Pellets Containing Solid Fuel

In this research, the effects of oxygen injection during the induration process were studied in order to improve the quality specifications and increase the rate of production of the iron oxide pellets. Several experiments were carried out in palletizing pilot plant in different conditions of oxygen injection. The results suggested that if only the extra oxygen was injected into the furnace in ...

the use of appropriate madm model for ranking the vendors of mci equipments using fuzzy approach

abstract nowadays, the science of decision making has been paid to more attention due to the complexity of the problems of suppliers selection. as known, one of the efficient tools in economic and human resources development is the extension of communication networks in developing countries. so, the proper selection of suppliers of tc equipments is of concern very much. in this study, a ...