In this study, an approach to modify and improve of CH4(methane)/air pre-mixed flame in a micro-stepped tube combustor … in comparison to the simple backward facing step method. The wire insertion method improves the combustion process by …

characteristics of hydrogen production from biomass gasification. Air and oxygen/steam are utilized as the gasifying agents. The … experimental results indicate that compared to biomass air gasification, biomass oxygen/steam gasification improves hydrogen yield …Biomass gasification is an important method to obtain renewable hydrogen. However, this technology still stagnates in a …

Air and sea passenger transport were generally considered as serving different market segments with little competition … competition between the two modes. This article aims first to identify the circumstances under which air and sea transport compete …. The second step is to further examine possible reactions to increase their competitive relationship. The Greek Aegean …