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In this analysis, the single crystal of schiff base has been synthesized and the purity of material has been increased by repeated recrystallization process. Single crystal was grown by adopting the method growing in a slow evaporation solution using ethanol as solvent at room temperature. A new fluorescent molecule based on Schiff base has been synthesised and its binding properties investigated by fluorescence spectroscopy to show that it can selectively bind Cu2+ with fluorescence quenching.
Because of the illposedness of soft field, the
quality of EIT images is not satisfied as expected. This paper puts forward a
threshold strategy to decrease the artifacts in the reconstructed images by
modifying the solutions of inverse problem. Threshold strategy is a kind of
post processing method with merits of easy, direct and efficient. Reconstructed
by Gauss-Newton algorithm, the simulation image’s quality is improved
evidently. We take two performance targets, image reconstruction error and
correlation coefficient, to evaluate the improvement. The images and the data
show that threshold strategy is effective and achievable.