IN NATURE of Dec. 21, 1929 (vol. 124, p. 946), W. Linnik describes a complete spectral diagram 1 of quartz produced by a conical X-ray pencil, which pencil is obtained by the movement in two ...
This figure shows an overview of SPECTRA and compares its functionality with other training-free state-of-the-art approaches across a range of applications. SPECTRA comprises two main modules, namely ...