scholarly journals A UV-visible absorption spectrum denoising method based on EEMD and an improved universal threshold filter

RSC Advances ◽  
2018 ◽  
Vol 8 (16) ◽  
pp. 8558-8568 ◽  
Author(s):  
Jingwei Li ◽  
Yifei Tong ◽  
Li Guan ◽  
Shaofeng Wu ◽  
Dongbo Li
Keyword(s):  
Water Quality ◽  
Absorption Spectrum ◽  
Quality Parameters ◽  
Visible Absorption Spectrum ◽  
Visible Spectroscopy ◽  
Visible Absorption ◽  
Denoising Method ◽  
Measured Absorption ◽  
Threshold Filter ◽  
Uv Visible

When using ultraviolet-visible spectroscopy (UV-visible spectroscopy) to detect water quality parameters, the measured absorption spectrum signal often contains a lot of interference information.

Authentication and Analysis of Olive Oil Based on Stimulated Brillouin Scattering and UV-Visible Absorption Spectrum

2018 ◽  
Vol 45 (9) ◽  
pp. 0911016
Author(s):  
曹晨鹏 Cao Chenpeng ◽  
郝仕国 Hao Shiguo ◽  
罗宁宁 Luo Ningning ◽  
史久林 Shi Jiulin ◽  
何兴道 He Xingdao
Keyword(s):  
Absorption Spectrum ◽  
Olive Oil ◽  
Brillouin Scattering ◽  
Stimulated Brillouin Scattering ◽  
Visible Absorption Spectrum ◽  
Visible Absorption ◽  
Uv Visible ◽  
Stimulated Brillouin

scholarly journals Effect of Cu, Cr, S Doped TiO2 for Transparent Plastic Bar Reinforced Concrete

2020 ◽  
Vol 10 (20) ◽  
pp. 7334
Author(s):  
Seung-Hoon Seo ◽  
Byoung-Il Kim
Keyword(s):  
Absorption Spectrum ◽  
Reinforced Concrete ◽  
Visible Light ◽  
High Performance Concrete ◽  
Test Method ◽  
Visible Absorption Spectrum ◽  
Nox Removal ◽  
Transparent Plastic ◽  
Visible Absorption ◽  
Uv Visible

In this study, after firing and powdering Cu, Cr, and S with NP-400 TiO2, an NOx removal rate test was performed according to the ISO test method to analyze the photocatalytic reactivity in visible light. The distribution of the photocatalyst and visible light reactivity on the surface of the test specimen were confirmed through SEM (Scanning electron microscope), EDS (Energy dispersive spectroscopy), XRD (X-ray diffraction), UV-visible absorption spectrum and energy band gap tests. The flowability of UHPC (Ultra high performance concrete) slightly decreased due to the increase in the photocatalyst mixing rate, but both J-Ring and L-Box test results showed that there is no problem when concrete is placed. As a result of SEM and EDS tests, good microstructure and peak values were confirmed in the test specimens doped with Cu, and as a result of the XRD test, anatase and rutile peaks were confirmed in the Cu, Cr, and S specimens. In the UV-visible absorption spectrum analysis, it was confirmed that only the specimen doped with Cu maintains a high absorption power of 0.8 up to 700 nm, and the inherent band gaps are reduced to 2.9 eV, thereby increasing the possibility of reaction in visible light. Finally, as a result of the NOx removal test by the ISO test method, about 15.8% was removed for 5 h in the specimen doped with Cu, and the removal efficiency is estimated to be possible up to about 25% when applied with the TPBRC (transparent plastic bar reinforced concrete).

Research on ultraviolet-visible absorption spectrum preprocessing for water quality contamination detection

Optik ◽  
2018 ◽  
Vol 164 ◽  
pp. 277-288 ◽  
Author(s):  
Li Guan ◽  
Yifei Tong ◽  
Jingwei Li ◽  
Dongbo Li ◽  
Shaofeng Wu
Keyword(s):  
Water Quality ◽  
Absorption Spectrum ◽  
Visible Absorption Spectrum ◽  
Visible Absorption

The UV-visible absorption spectrum of methylglyoxal

1991 ◽  
Vol 62 (2) ◽  
pp. 163-171 ◽  
Author(s):  
R. Meller ◽  
W. Raber ◽  
J.N. Crowley ◽  
M.E. Jenkin ◽  
G.K. Moortgat
Keyword(s):  
Absorption Spectrum ◽  
Visible Absorption Spectrum ◽  
Visible Absorption ◽  
Uv Visible

scholarly journals UV-visible absorption spectrum of FAD and its reduced forms embedded in a cryptochrome protein

2020 ◽  
Vol 22 (22) ◽  
pp. 12447-12455 ◽  
Author(s):  
Karno Schwinn ◽  
Nicolas Ferré ◽  
Miquel Huix-Rotllant
Keyword(s):  
Absorption Spectrum ◽  
Absorption Spectra ◽  
Visible Absorption Spectrum ◽  
Visible Absorption ◽  
Uv Visible ◽  
Reduced Forms

Simulation of UV-vis absorption spectra of cryptochromes and flavoproteins requires an explicit account of vibrations of the flavin chromophore embedded in protein.

The UV-visible absorption spectrum and photolysis quantum yields of methylglyoxal

1995 ◽  
Vol 100 (D7) ◽  
pp. 14189 ◽  
Author(s):  
Thomas A. Staffelbach ◽  
John J. Orlando ◽  
Geoffrey S. Tyndall ◽  
Jack G. Calvert
Keyword(s):  
Absorption Spectrum ◽  
Quantum Yields ◽  
Visible Absorption Spectrum ◽  
Visible Absorption ◽  
Uv Visible
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