Information system for molecular spectroscopy. 6. Systematization of spectral data on deutero-substituted isotopologues of hydrogen sulfide molecule

2016 ◽  
Keyword(s):  
Information System ◽  
Hydrogen Sulfide ◽  
Spectral Data ◽  
Molecular Spectroscopy

Information system for molecular spectroscopy: 6—systematization of spectral data on deutero-substituted isotopologues of the hydrogen sulfide molecule

2017 ◽  
Vol 30 (2) ◽  
pp. 134-143 ◽  
Author(s):  
A. Yu. Akhlestin ◽  
S. S. Voronina ◽  
O. V. Naumenko ◽  
E. R. Polovtseva ◽  
A. Z. Fazliev
Keyword(s):  
Information System ◽  
Hydrogen Sulfide ◽  
Spectral Data ◽  
Molecular Spectroscopy

Information system for molecular spectroscopy. 5. Ro-vibrational transitions and energy levels of the hydrogen sulfide molecule

2012 ◽  
Vol 25 (2) ◽  
pp. 157-165 ◽  
Author(s):  
E. R. Polovtseva ◽  
N. A. Lavrentiev ◽  
S. S. Voronina ◽  
O. V. Naumenko ◽  
A. Z. Fazliev
Keyword(s):  
Information System ◽  
Hydrogen Sulfide ◽  
Molecular Spectroscopy ◽  
Energy Levels ◽  
Vibrational Transitions

Distributed information system on molecular spectroscopy

2006 ◽  
Author(s):  
A. D. Bykov ◽  
A. Z. Fazliev ◽  
A. V. Kozodoev ◽  
A. I. Privezentsev ◽  
L. N. Sinitsa ◽  
...  
Keyword(s):  
Information System ◽  
Molecular Spectroscopy ◽  
Distributed Information System ◽  
Distributed Information

Study of Vis-NIR and NIR spectral data of black inkjet prints using principal component analysis for forensic discrimination

NIR news ◽  
2017 ◽  
Vol 28 (2) ◽  
pp. 7-12 ◽  
Author(s):  
Michal Oravec ◽  
Lukáš Gál ◽  
Michal Čeppan
Keyword(s):  
Principal Component Analysis ◽  
Spectral Data ◽  
Near Infrared ◽  
Molecular Spectroscopy ◽  
Principal Component ◽  
Invasive Procedure ◽  
Component Analysis ◽  
Infrared Region ◽  
Forensic Analysis ◽  
Fibre Optics

The aim of this work was to prepare spectral data for principal component analysis and to examine 19 samples of six different brands. Samples consisted of the same type of office paper with black areas printed in black ink only. The spectral data were acquired by fibre optics reflection spectroscopy in Vis-NIR and only NIR (Vis-NIR FORS) directly on paper. The black inkjet-printed samples were analysed with regard to the forensic analysis of documents. The method used is based on the combination of molecular spectroscopy in the visible (Vis) and near infrared region (NIR) combined with a chemometric method, – principal component analysis (PCA). The PCA method divides the inkjet inks sample into clusters. It was found out that by a combination of spectrum pre-processing methods and principal component analysis, it is possible to separate inks containing carbon black from the other inks using other organic colourants. This method appears to be a useful tool for forensic examination of printed documents containing inkjet inks. Spectra of inkjet inks were acquired without any destructive or invasive procedure, for example cutting sample or for extraction with the possibility to measure out of the laboratory.

Information System «Electronic Structure of Atoms»

2011 ◽  
Vol 6 (3) ◽  
pp. 64-70
Author(s):  
Vitaliy G. Kazakov ◽  
Aleksey S. Yatsenko ◽  
Vladislav V. Kazakov
Keyword(s):  
Information System ◽  
Electronic Structure ◽  
Spectral Data ◽  
The Internet ◽  
Tabular Form ◽  
Atomic Systems ◽  
Reporting Data

The article describes information system «Electronic structure of atoms» on spectral data of atomic systems. In addition to reporting data in tabular form the information system implements a unique opportunity to visualize the spectral data in the form of automatically generated charts. Information System published on the Internet

scholarly journals Pre-processing of inkjet prints NIR spectral data for principal component analysis

2015 ◽  
Vol 8 (2) ◽  
pp. 191-196 ◽  
Author(s):  
Michal Oravec ◽  
Lukáš Gál ◽  
Michal Čeppan
Keyword(s):  
Principal Component Analysis ◽  
Spectral Data ◽  
Near Infrared ◽  
Molecular Spectroscopy ◽  
High Reliability ◽  
Principal Component ◽  
Component Analysis ◽  
Infrared Region ◽  
Ocean Optics ◽  
Novel Approach

Abstract This paper presents a novel approach in non-destructive analysis of inkjet-printed documents. Our method is based on the combination of molecular spectroscopy in the Near Infrared Region (NIR) and a chemometric method - principal component analysis (PCA). The aim of this work was to prepare spectral data for the analysis of the interrelationships between 19 samples consisting of the same type of office paper on which black squares were full printed in black ink only. The spectra were obtained separately using the Ocean Optics System in two spectral regions, i.e., overtones: 1000-1600 nm and combination bands: 1600-2300 nm, with the paper base. Experimental results confirmed the high reliability of the proposed approach despite the sparse dataset.

Information system for molecular spectroscopy: 7—systematization of information resources on the main isotopologue of the methanol molecule

2017 ◽  
Vol 30 (2) ◽  
pp. 144-155
Author(s):  
A. Yu. Akhlestin ◽  
S. S. Voronina ◽  
A. I. Privezentsev ◽  
O. B. Rodimova ◽  
A. Z. Fazliev
Keyword(s):  
Information System ◽  
Molecular Spectroscopy ◽  
Information Resources ◽  
Methanol Molecule
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