11. He went on to discover Spectral Analysis in 1853. 12. Early spectral analysis of the chemical constituents in the blast zones reveals principally ammonia and sulphur. 13. Spectral analysis of light emitted in sonochemical reactions reveal chemical and plasma-based mechanisms of energy transfer.14. The defense scientists had expertise in imaging and spectral analysis from their satellite and weapons non-proliferation work. 15. Contested wills, the bread and butter of many professional document examiners, are frequently subjected to spectral analysis . 16. In the middle of the 19th century spectral analysis was developed by Gustav Kirchhoff and Robert Bunsen. 17. Bawlf's claims regarding " spectral analysis " and four matching islands have been disputed by Derek Hayes. 18. Long-range connections between different brain structures, such as the thalamus and the spectral analysis and Granger causality measures. 19. Their results launched the field of non-invasive spectral analysis of blood flow, including Doppler echocardiography and Doppler sonography. 20. Advanced systems also perform spectral analysis , ischemic burden evaluation, graph of patient s activity or PQ segment analysis.