Results 1 to 10 of about 209,601 (301)

The effects of solvents and structure on the electronic absorption spectra of the isomeric pyridine carboxylic acid N-oxides [PDF]

open access: yesChemical Industry and Chemical Engineering Quarterly, 2013
The ultraviolet absorption spectra of the carboxyl group of three isomeric pyridine carboxylic acids N-oxides (picolinic acid N-oxide, nicotinic acid N-oxide and isonicotinic acid N-oxide) were determined in fourteen solvents in the wavelength range ...
Drmanić Saša Ž.   +4 more
doaj   +4 more sources

Application of machine learning algorithms for prediction of ultraviolet absorption spectra of chromophoric dissolved organic matter (CDOM) in seawater

open access: yesFrontiers in Marine Science, 2023
The ultraviolet absorption spectra of chromophoric dissolved organic matter (CDOM) can be used to trace its sources and to explore the dynamic of the CDOM pool.
Aobo Ju   +3 more
doaj   +1 more source

Solvent effect on electronic absorption spectra of cyclohex-1-enylcarboxylic and 2-methylcyclohex-1-enylcarboxylic acids [PDF]

open access: yesJournal of the Serbian Chemical Society, 2000
The ultraviolet absorption spectra of cyclohex-1-enylcarboxylic acid and 2-methylcyclohex-1-enylcarboxylic acid were determined in six protic and nine aprotic solvents in the wavelength range from 200 to 400 nm.
VERA V. KRSTIC   +2 more
doaj   +2 more sources

Vacuum-Ultraviolet Absorption Spectra of Icy C2H4 at 13–60 K

open access: yesFrontiers in Astronomy and Space Sciences, 2021
The thermal variation of absorption spectra of icy ethene in wavelength range 105–220 nm was measured from 13 to 100 K using a synchrotron as light source. Sublimation of icy ethene began above 62 K, resulting in decreasing absorption.
Jen-Iu Lo   +5 more
doaj   +1 more source

Modelling ultraviolet-line diagnostics of stars, the ionized and the neutral interstellar medium in star-forming galaxies [PDF]

open access: yes, 2017
We combine state-of-the-art models for the production of stellar radiation and its transfer through the interstellar medium (ISM) to investigate ultraviolet-line diagnostics of stars, the ionized and the neutral ISM in star-forming galaxies.
Bruzual, G.   +3 more
core   +2 more sources

Some Properties of Semiconductor-Ferroelectric Structures

open access: yesEast European Journal of Physics, 2023
This paper presents the properties of semiconductor-ferroelectric structures consisting of ZnO nanorods grown at low temperatures by the hydrothermal method on LiNbO3 and LiNbO3:Fe substrates.
Zakirjan T. Azamatov   +3 more
doaj   +1 more source

Ultraviolet-Absorption Spectra of Dry Bacterial Spores [PDF]

open access: yesJournal of Bacteriology, 1965
Bailey, Glen F. (Western Regional Research Laboratory, Albany, Calif.), Saima Karp, and L. E. Sacks . Ultraviolet-absorption spectra of dry bacterial spores. J. Bacteriol. 89: 984–987. 1965.—The possibility of obtaining reasonably satisfactory ultraviolet-absorption spectra of dry
G F, BAILEY, S, KARP, L E, SACKS
openaire   +2 more sources

Dataset of emission and excitation spectra, UV–vis absorption spectra, and XPS spectra of graphitic C3N4

open access: yesData in Brief, 2018
In this data article, the normalized emission and excitation spectra, the ultraviolet-visible (UV–vis) absorption spectra, and the X-ray photoelectron spectroscopy (XPS) of bulk-powders and nano-structured graphitic C3N4 (g-C3N4) were presented, which ...
Liangrui He   +11 more
doaj   +1 more source

Synthesis and investigation of solvent effects on the ultraviolet absorption spectra of 5-substituted-4-methyl-3-cyano-6-hydroxy-2-pyridones [PDF]

open access: yesJournal of the Serbian Chemical Society, 2001
A number of 5-substituted-4-methyl-3-cyano-6-hydroxy-2-pyridones from cyanoacetamide and the corresponding alkyl ethyl acetoacetates were synthesized according to modified literature procedures. The alkyl ethyl acetoacetates were obtained by the reaction
NATASA V. VALENTIC   +2 more
doaj   +3 more sources

Photoluminescence emission spectra of Makrofol® DE 1-1 upon irradiation with ultraviolet radiation

open access: yesResults in Physics, 2017
Photoluminescence (PL) emission spectra of Makrofol® DE 1-1 (bisphenol-A based polycarbonate) upon irradiation with ultraviolet radiation of different wavelengths were investigated.
M. El Ghazaly, Abdulkadir Aydarous
doaj   +1 more source

Home - About - Disclaimer - Privacy