The thermal stability of a set aliphatic nitroalkanes, comprising primary and secondary with short long linear chains or cyclic, was tested by differential scanning calorimetry (DSC) analysis, for comparative purposes. An exothermic decomposition phenomenon high entity occurred all compounds, no significant difference observed to depend on the structure compounds tested. A maximum recommended p...

A differential amplitude scanning system for ophthalmoscopy is described theoretically. The differential scanning ophthalmoscope (DSO) samples the retina with two laterally displaced spots. The signal measured is the difference between the irradiance from these two locations. The theoretical analysis of the DSO shows it offers increased contrast at high spatial frequencies and only weak contrib...