Results 1 to 10 of about 3,260,990 (309)

Oxygen K-edge X-ray Absorption Spectra

Chemical Reviews, 2020
We review oxygen K-edge X-ray absorption spectra of both molecules and solids. We start with an overview of the main experimental aspects of oxygen K-edge X-ray absorption measurements including X-ray sources, monochromators, and detection schemes.
Frank De Groot, Myrtille Hunault, Federica Frati   +2 more
exaly   +2 more sources

Evaluating the New Automatic Method for the Analysis of Absorption Spectra Using Synthetic Spectra

Universe, 2017
We recently presented a new “artificial intelligence” method for the analysis of high-resolution absorption spectra (Bainbridge and Webb, Mon. Not. R. Astron. Soc. 2017, doi:10.1093/mnras/stx179).
Matthew B. Bainbridge, John K. Webb
doaj   +3 more sources

VUV absorption spectra of water and nitrous oxide by a double-duty differentially pumped gas filter [PDF]

Journal of Synchrotron Radiation
The differentially pumped rare-gas filter at the end of the VUV beamline of the Swiss Light Source has been adapted to house a windowless absorption cell for gases. Absorption spectra can be recorded from 7 eV to up to 21 eV photon energies routinely, as
Andras Bodi, Jonas Knurr, Patrick Ascher, Patrick Hemberger, Christoph Bostedt, Andre Al Haddad   +5 more
doaj   +2 more sources

Hyperspectral Differentiation of Phytoplankton Taxonomic Groups: A Comparison between Using Remote Sensing Reflectance and Absorption Spectra

Remote Sensing, 2015
The emergence of hyperspectral optical satellite sensors for ocean observation provides potential for more detailed information from aquatic ecosystems.
Hongyan Xi, Martin Hieronymi, Rüdiger Röttgers, Hajo Krasemann, Zhongfeng Qiu   +4 more
doaj   +2 more sources

Global cross-database search system for X-ray absorption spectra [PDF]

Journal of Synchrotron Radiation
While the importance of a systematic overview of scientific data and demands toward data integration are increasing, data capitalization and confidentiality are also emerging competitively.
Masashi Ishii, Asahiko Matsuda, Koichi Sakamoto, Shohei Yamashita, Yasuhiro Niwa, Yasuhiro Inada   +5 more
doaj   +2 more sources

Absorption Spectra [PDF]

Nature, 1921
E. Baly
semanticscholar   +2 more sources

Identification of succinite of infrared absorption spectra [PDF]

E3S Web of Conferences, 2020
The solution of the problem of identification of amber (succinite) on the example of natural polymer material of organic origin on the basis of its infrared absorption spectra is proposed.
Verkhovskaia Iana, Prokopenko Viktor, Vasiliev Evgeni   +2 more
doaj   +1 more source

Understanding X-ray absorption spectra by means of descriptors and machine learning algorithms

npj Computational Materials, 2021
X-ray absorption near-edge structure (XANES) spectra are the fingerprint of the local atomic and electronic structures around the absorbing atom. However, the quantitative analysis of these spectra is not straightforward.
A. Guda, S. Guda, A. Martini, A. Kravtsova, A. Algasov, A. Bugaev, S. P. Kubrin, L. V. Guda, P. Šot, J. V. van Bokhoven, C. Copéret, A. Soldatov   +11 more
semanticscholar   +1 more source

Coloration of Flowers by Flavonoids and Consequences of pH Dependent Absorption

Frontiers in Plant Science, 2021
Flavonoid pigments are key determinants of flower colors. As absorption spectra of flavonoids are known to be severely pH-dependent, cellular pH will play a crucial role in flower coloration. The flavonoids are concentrated in the vacuoles of the flowers’
Doekele G. Stavenga, Hein L. Leertouwer, Bettina Dudek, Casper J. van der Kooi   +3 more
doaj   +1 more source

Absorption Spectra Comparison of Tm/Ho-Codoped Bototellurite Glasses

Journal of Physics: Theories and Applications, 2021
This paper presents a comparison study of absorption spectra of borotellurite glasses with compostion: 20TeO2 – 15Bi2O3 – 3TiO2 – (4-x) Na2CO3 – 1Tm2O3 - xHo2O3 where x = 0; 0.5; 1; 1.5; 2; 2.5 (mol%).
Azmi Saraswati, Ahmad Marzuki, Venty Suryanti   +2 more
doaj   +1 more source