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A novel robust low cost sensor for measuring the concentration of ethylene in air is tested. Ethylene levels are important for agriculture, but traditional measurement methods, are unsuitable for measurements in the field. The proposed measurement system is based on a non-dispersive infrared sensing element that measures the characteristic IR absorption peak of ethylene at 10.54μm. A compact hollow...
We present Raman micro-spectroscopic measurements of Escherichia coli, Bacillus thuringiensis and Staphylococcus cohnii. Several authors have reported successful methods for classifying single bacteria using Raman micro-spectroscopy. The aim of this paper is to evaluate which features of the spectra are useful for the classification. PCA obtained the best performance with 3 PCs. We also tested classifiers...
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