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Detection of heroin covered by skin by using robust principal components analysis

โœ Scribed by Wei Li; Daoyang Yu; Fang Zhang; Bai Sun; Jinyun Liu; Minqiang Li; Jinhuai Liu


Book ID
108206225
Publisher
Elsevier Science
Year
2011
Tongue
English
Weight
724 KB
Volume
44
Category
Article
ISSN
0263-2241

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## Abstract The detection limit of Auger electron spectroscopy (AES) can be improved by mathematical methods that reduce the influence of noise. We compared principal component analysis (PCA) and spline smoothing and applied them to the analysis of a phosphorus depth profile in silicon. Both method