CHEMICAL TRANSFORMATIONS IN A HYDROGEN-AIR MIXING LAYER
A 1972 NASA technical report by O. Leuchter on chemical transformations in a hydrogen-air mixing layer, issued for combustion and aerodynamics researchers. The plates are photocopied line graphs: parabolic induction and combustion boundaries, nested temperature contours on logarithmic axes, hand-lettered subscripted labels and dashed curves, with broken edges and speckled grain useful as degraded technical-diagram texture.
