The retention of copper (Cu) in saline–alkali soil (SAS) during long-term application biogas residue (BR) with a high concentration Cu raises concerns. In this work, the fate was detected using adsorption isotherms, scanning electron microscope—energy dispersive spectrometer, Fourier transform infrared X-ray diffraction, isothermal titration calorimetry, photoelectron spectroscopy, and microzon...

Spectral performance of an airborne dispersive pushbroom imaging spectrometer cannot be assumed to be stable over a whole flight season given the environmental stresses present during flight. Spectral performance monitoring during flight is commonly accomplished by looking at selected absorption features present in the Sun, atmosphere, or ground, and their stability. The assessment of instrumen...

The L subshell Coster-Kronig (CK) transition factors of Gd have been experimentally determined by means two different experimental approaches and compared to available literature data. On the one hand, reference-free X-ray fluorescence (XRF) analysis using an energy-dispersive detector was applied. This method permitted in addition determine yields since absolute incident emitted photon flux ca...