scholarly journals A methodology for the selection of pollutants for ensuring good indoor air quality using the de-trended cross-correlation function

2021 ◽  
pp. 108668
Author(s):  
Maria Justo Alonso ◽  
Sebastian Wolf ◽  
Rikke Bramming Jørgensen ◽  
Henrik Madsen ◽  
Hans Martin Mathisen
Keyword(s):  
Correlation Function ◽  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Cross Correlation ◽  
Cross Correlation Function ◽  
Selection Of

Odd Moments of the Cross-Correlation Function for Library Searching of Infrared Spectra

1987 ◽  
Vol 41 (5) ◽  
pp. 869-874 ◽  
Author(s):  
Jung-Pin Yu ◽  
H. Bruce Friedrich
Keyword(s):  
Correlation Function ◽  
Cross Correlation ◽  
Correlation Coefficients ◽  
Cross Correlation Function ◽  
Moment Methods ◽  
The Cross ◽  
Spectral Ranges ◽  
First Moment ◽  
Chemical Class ◽  
Selection Of

The odd moments of the autocorrelation function are zero, and the moments of the cross-correlation function for an unknown spectrum with a library entry have been used here to select the best fits. The use of the first moment or average wavenumber in six separate spectral ranges requires only 12 values per library entry, and 24 values are required per library entry if twelve separate ranges are used. The odd moment methods were found to yield results for searches with both library and experimental spectra that were comparable to correlation coefficients in selection of the proper chemical class for the unknown spectra and in making of the proper identification.

Feinstaubfiltrierung: Saubere Luft atmen

2017 ◽  
Vol 22 (07/08) ◽  
pp. 106-107
Author(s):  
Marc Lichtenthäler
Keyword(s):  
Air Quality ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Eine Hohe

Viele Studien belegen, dass durch eine hohe Indoor Air Quality die Produktivität gesteigert, Fehlzeiten abgebaut und Herz-Kreislauf-Erkrankungen vermieden werden können. Neben Behandlungs-, OP- und Pflegebereichen eines Klinikums sollten deshalb auch Bereiche mit gut aufbereiteter Raumluft bedacht werden, in denen sich ausschließlich Mitarbeiter aufhalten.

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