On the effectiveness of joint laser and gas chromatographic remote detection of explosive traces

2018 ◽  
Keyword(s):  
Remote Detection

Mathematical modelling of remote detection of molecular air pollutants

1987 ◽  
Vol 52 (6) ◽  
pp. 1397-1406
Author(s):  
František Zrcek ◽  
Milan Horák
Keyword(s):  
Atmospheric Aerosols ◽  
Air Pollutants ◽  
Complex Refractive Index ◽  
Mie Scattering ◽  
Heat Emission ◽  
Remote Detection ◽  
Radiation Absorption ◽  
Variable Concentration ◽  
Lidar Equation ◽  
Optical Pathway

A model of remote detection of molecular air pollutants is devised based on the lidar equation. The various kinds of interaction of radiation with matter, viz. absorption, induced fluorescence, and Raman scattering, are taken into account; detection of either scattered or reflected signal is considered. The reflection is assumed to be either axial, using a retroreflector, or omnidirectional from a field target. Based on this model, an algorithm was set up for simulation of the different variants of the experiment, making allowance for a generally variable concentration of the compound along the optical pathway of the light beam. The basic atmospheric processes, viz. radiation absorption by the backround, heat emission, turbulence, and the effect of atmospheric aerosols, are treated, and the last of them is found to play the major role. Aerosols are looked upon as a source of the Mie scattering and they are described by distribution equations with respect to the particle size and the complex refractive index. The variable concentration of the aerosol along the optical pathway and the simultaneous effect of a higher numberof aerosol types are included.

Doppler Cardiogram: A Remote Detection of Human Heart Activities

2020 ◽  
Vol 68 (3) ◽  
pp. 1132-1141 ◽  
Author(s):  
Shuqin Dong ◽  
Yi Zhang ◽  
Chao Ma ◽  
Chengkai Zhu ◽  
Zhitao Gu ◽  
...  
Keyword(s):  
Human Heart ◽  
Remote Detection

Remote detection of pollutants using resonance Raman scattering

1975 ◽  
Vol 14 (11) ◽  
pp. 2703 ◽  
Author(s):  
H. Rosen ◽  
P. Robrish ◽  
O. Chamberlain
Keyword(s):  
Raman Scattering ◽  
Resonance Raman ◽  
Remote Detection ◽  
Resonance Raman Scattering

Remote detection of HCl and SO2in volcanic gas from Unzen Volcano, Japan

1993 ◽  
Vol 20 (13) ◽  
pp. 1355-1358 ◽  
Author(s):  
Toshiya Mori ◽  
Kenji Notsu ◽  
Yasunori Tohjima ◽  
Hiroshi Wakita
Keyword(s):  
Remote Detection ◽  
Volcanic Gas ◽  
Unzen Volcano

Remote detection of fumarolic gas chemistry at Vulcano, Italy, using an FT-IR spectral radiometer

1995 ◽  
Vol 134 (1-2) ◽  
pp. 219-224 ◽  
Author(s):  
Toshiya Mori ◽  
Kenji Notsu ◽  
Yasunori Tohjima ◽  
Hiroshi Wakita ◽  
P. Mario Nuccio ◽  
...  
Keyword(s):  
Remote Detection ◽  
Gas Chemistry ◽  
Ft Ir ◽  
Fumarolic Gas
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