Temporal coherence in the perception of tone sequences [doctoral dissertation

A direct reduction apparatus having a means for briquetting oxide ores of iron, manganese, chrome, and copper, with a powdered coal tar pitch, means for caramelizing (hardening) the briquettes for ease of handling, subjecting the caramelized briquettes to a first temperature source until said briquettes are partially reduced to conductivity, their dimensions are substantially reduced and subsequently reducing said briquettes by subjecting them to a frequency electric induction induced heat source.