In Situ Measurement of Ammonia Concentration in Soil Headspace Using Fourier Transform Mid-Infrared Photoacoustic Spectroscopy

Pedosphere ◽  
2015 ◽  
Vol 25 (4) ◽  
pp. 605-612 ◽  
Author(s):  
Changwen DU ◽  
Jiao WANG ◽  
Zijun ZHOU ◽  
Yazhen SHEN ◽  
Jianmin ZHOU
Keyword(s):  
Fourier Transform ◽  
Photoacoustic Spectroscopy ◽  
Ammonia Concentration ◽  
In Situ Measurement ◽  
Mid Infrared ◽  
Infrared Photoacoustic Spectroscopy

Determination of the contents of magnesium and potassium in rapeseeds using FTIR-PAS combined with least squares support vector machines and uninformative variable elimination

2014 ◽  
Vol 6 (8) ◽  
pp. 2586-2591 ◽  
Author(s):  
Yuzhen Lu ◽  
Changwen Du ◽  
Changbing Yu ◽  
Jianmin Zhou
Keyword(s):  
Fourier Transform ◽  
Support Vector Machines ◽  
Photoacoustic Spectroscopy ◽  
Support Vector ◽  
Mid Infrared ◽  
Variable Elimination ◽  
Vector Machines ◽  
Infrared Photoacoustic Spectroscopy ◽  
Uninformative Variable Elimination

Fourier transform mid-infrared photoacoustic spectroscopy (FTIR-PAS) was employed to determine the contents of magnesium and potassium in rapeseeds.

Determination of soil properties using Fourier transform mid-infrared photoacoustic spectroscopy

2009 ◽  
Vol 49 (1) ◽  
pp. 32-37 ◽  
Author(s):  
Changwen Du ◽  
Jianmin Zhou ◽  
Huoyan Wang ◽  
Xiaoqin Chen ◽  
Anning Zhu ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Soil Properties ◽  
Photoacoustic Spectroscopy ◽  
Mid Infrared ◽  
Infrared Photoacoustic Spectroscopy

Soil variability description using Fourier transform mid-infrared photoacoustic spectroscopy coupling with RGB method

CATENA ◽  
2017 ◽  
Vol 152 ◽  
pp. 190-197 ◽  
Author(s):  
Fei Ma ◽  
Yin Zeng ◽  
Changwen Du ◽  
Yazhen Shen ◽  
Hongwei Ma ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Photoacoustic Spectroscopy ◽  
Soil Variability ◽  
Mid Infrared ◽  
Infrared Photoacoustic Spectroscopy
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