Effect of ultra-strong static magnetic field on bacteria: Application of Fourier-transform infrared spectroscopy combined with cluster analysis and deconvolution

2009 ◽  
Vol 30 (6) ◽  
pp. 500-507 ◽  
Author(s):  
Xing Hu ◽  
Zunan Qiu ◽  
Yerui Wang ◽  
Zichao She ◽  
Guangren Qian ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Cluster Analysis ◽  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Fourier Transform Infrared Spectroscopy ◽  
Static Magnetic Field ◽  
Fourier Transform Infrared

scholarly journals Efficient Discrimination of Some Moss Species by Fourier Transform Infrared Spectroscopy and Chemometrics

2014 ◽  
Vol 2014 ◽  
pp. 1-9
Author(s):  
Zhen Cao ◽  
Yongying Liu ◽  
Jiancheng Zhao
Keyword(s):  
Cluster Analysis ◽  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Fourier Transform Infrared Spectroscopy ◽  
Principal Component ◽  
Fourier Transform Infrared ◽  
Ftir Spectra ◽  
Chemical Components ◽  
Discrete Wavelet ◽  
Moss Species

Fourier transform infrared spectroscopy (FTIR) technique was used to classify 16 species from three moss families (Mielichhoferiaceae, Bryaceae, and Mniaceae). The FTIR spectra ranging from 4000 cm−1to 400 cm−1of the 16 species were obtained. To group the spectra according to their spectral similarity in a dendrogram, cluster analysis and principal component analysis (PCA) were performed. Cluster analysis combined with PCA was used to give a rough result of classification among the moss samples. However, some species belonging to the same genus exhibited very similar chemical components and similar FTIR spectra. Fourier self-deconvolution (FSD) was used to enhance the differences of the spectra. Discrete wavelet transform (DWT) was used to decompose the FTIR spectra ofMnium laevinerveandM. spinosum. Three scales were selected as the feature extracting space in the DWT domain. Results showed that FTIR spectroscopy combined with DWT was suitable for distinguishing different species of the same genus.

Discriminant Analysis and Cluster Analysis of Biodiesel Fuel Blends Based on Fourier Transform Infrared Spectroscopy (FTIR)

2016 ◽  
Vol 30 (6) ◽  
pp. 4905-4915 ◽  
Author(s):  
Victor Hugo J. M. dos Santos ◽  
Eduardo Do Canto Bruzza ◽  
Jeane E. de Lima ◽  
Rogerio V. Lourega ◽  
Luiz F. Rodrigues
Keyword(s):  
Cluster Analysis ◽  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Discriminant Analysis ◽  
Fourier Transform Infrared Spectroscopy ◽  
Fourier Transform Infrared ◽  
Biodiesel Fuel ◽  
Fuel Blends ◽  
And Cluster Analysis
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