A computer study of the absorption of infrared radiation by systems of molecular clusters

Abstract

The method of molecular dynamics is used to investigate the process of absorption of N 2 O and CH 4 molecules by water clusters and to determine the frequency spectra of permittivity for systems consisting of clusters mixed in different ratios, namely, (. IR-radiation absorption spectra for these systems are calculated and analyzed; the radiation power scattered by these systems and the tangent of dielectric loss angle are determined. The inclusion of anharmonicity of phonon oscillation makes it possible to explain the origin of characteristic frequencies appearing in IR spectra of mixtures of cluster systems. The capture of molecules of greenhouse gases by an ultradisperse aqueous medium affects the ability of this medium to absorb terrestrial radiation, i.e., reduces the greenhouse effect.

Design and Experiment of a Portable Near-infrared Spectrum Detection System for Fruits and Vegetables Quality-inspection

“…The near-infrared spectroscopy mainly produced by molecular vibration frequency within the group absorption and frequency absorption harmony, and only hydrogen-containing functional groups such as C-H, N-H, S-H, and O-H stretching vibration can be detected [6] , which plays significant effects in the quality inspection of fruits and vegetables. These spectrometers have the advantages of high detection precision, however, the shortcoming appears, not only bulky but also costly, which restricts the further application.…”

Climatic Effect of the Greenhouse Gases Clusterization

“…Investigation of clusterization of the GHG was executed in works (Galashev et al, 2006a(Galashev et al, , 2006bNovruzov et al, 2006;Galasheva et al, 2007;Chukanov & Galashev, 2008;Galashev, 2011). …”