Pretreatment of biomass becomes more and more important due to the large scale application of biomass having low energy density. In this paper, steam exploded biomass pellets (Black pellets) and unpretreated biomass pellets (Gray pellets) were gasified with air and steam at an updraft HTAG (High...

The authors describe a new, Web-based survey instrument that may serve as an aide for teachers and as an interactive exercise for high school economics students. The questionnaire asks students about their involvement with the economy, inquiring about employment, consumption, and living...

The author argues that the recent controversy over the effect of the minimum wage on employment offers an opportunity for teaching introductory economics. Research findings on the minimum wage could be used to motivate alternative models of the labor market, such as monopsony and search models,...