Figure 7. The hypercube of combustion of 40% H2 – air mixture, initiated by a platinum wire obtained with the hyper spectrometer, T0 = 320 C, P0 =1 atm, a spectral interval over 550 - 650 nm.

From

Identification of the Features of the Unstable Flame Propagation by 4D Optical Spectroscopy and Color Speed Cinematography

N Rubtsov, A Kalinin, A Vinogradov, A Rodionov, K Troshin, G Tsvetkov, V Chernysh

Journal of Materials Physics and Chemistry. 2017, 5(1), 11-19 doi:10.12691/jmpc-5-1-2