Results 11 to 20 of about 1,608,801 (307)

Ultraviolet Spectroscopy Of Subcritical And Supercritical Ethanol [PDF]

open access: yes, 2022
Vacuum ultraviolet spectroscopy was used to investigate the lowest-lying electronic state band edge of subcritical ethanol as a function of temperature from 25-200 $^{\circ}$C, and for supercritical ethanol as a function of density at 250 $^{\circ}$C ...
Marin, Timothy W.
core   +1 more source

ULTRAVIOLET INTRACAVITY LASER ABSORPTION SPECTROSCOPY [PDF]

open access: yes, 2023
Intracavity Laser Absorption Spectroscopy (ICAS) provides an excellent solution for ultrasensitive, multiplexed, quantitative detection of reactive species, but has traditionally been limited to the visible and infrared spectral regions by the ...
Zamir, Uri
core   +1 more source

Near-ultraviolet photon-counting dual-comb spectroscopy [PDF]

open access: yes, 2023
Ultraviolet spectroscopy provides unique insights into the structure of matter with applications ranging from fundamental tests to photochemistry in the earth's atmosphere and astronomical observations from space telescopes.
Xu, Bingxin   +7 more
core   +1 more source

Vibrationally Resolved Absorption and Fluorescence Cross Sections of Adamantane in the Far-ultraviolet Spectral Range on an Absolute Scale

open access: yesThe Astrophysical Journal Supplement Series, 2023
High-resolution absorption, dispersed fluorescence emission, and photoionization cross sections are presented for gas-phase adamantane excited by synchrotron radiation in the exciting-photon energy range of 6–30 eV. Relative and absolute absorption cross
Lutz Marder   +11 more
doaj   +1 more source

UV-NIR efficiency of the refractive index matching mechanism on colorectal muscle during treatment with different glycerol osmolarities

open access: yesJournal of Biomedical Photonics & Engineering, 2020
The evaluation of the optical clearing mechanisms in tissues provides information about the efficiency of the clearing treatment. One of such mechanisms is the refractive index matching, which is created by the partial replacement of tissue water by an ...
Nelma Gomes   +2 more
doaj   +1 more source

Research on Correction Method of Water Quality Ultraviolet-Visible Spectrum Data Based on Compressed Sensing

open access: yesJournal of Spectroscopy, 2021
The turbidity interference caused by suspended particles in water seriously affects the accuracy of ultraviolet-visible spectroscopy in detecting water quality chemical oxygen demand.
Fengxiao Li   +5 more
doaj   +1 more source

Large-scale homogeneous molecular templates for femtosecond time-resolved studies of the guest-host interaction [PDF]

open access: yes, 2004
Siffalovic P, Michelswirth M, Bartz P, et al. Large-scale homogeneous molecular templates for femtosecond time-resolved studies of the guest-host interaction. Journal of Biotechnology.
Michelswirth, Martin   +27 more
core   +1 more source

Determination of desulpho-glucosinolates in bolting stems of Chinese kale by liquid chromatography-mass spectrometry

open access: yes浙江大学学报. 农业与生命科学版, 2008
The crude glucosinolates (GSs) were extracted from bolting stems of Chinese kale (Brassica alboglabra) and purified by a column packed with DEAE Sephadex A-25. The desulpho-glucosinolates were obtained after desulfurizing of GSs by sulfatase.
LA Gui-xiao   +3 more
doaj   +1 more source

Photocatalyst Ag@N/TiO2 Nanoparticles: Fabrication, Characterization, and Investigation of the Effect of Coating on Methyl Orange Dye Degradation [PDF]

open access: yesJournal of Nanostructures, 2017
In this research, N-doped TiO2 (N/TiO2) nanoparticles have been synthesized by a sol-gel method. N/TiO2 nanoparticle has been coated with Ag metal by photochemical method.
Pourya Mehdizadeh, Zahra Tavangar
doaj   +1 more source

Real-Time Analysis of Isoprene in Breath by Using Ultraviolet-Absorption Spectroscopy with a Hollow Optical Fiber Gas Cell

open access: yesSensors, 2016
A breath analysis system based on ultraviolet-absorption spectroscopy was developed by using a hollow optical fiber as a gas cell for real-time monitoring of isoprene in breath.
Takuro Iwata   +2 more
doaj   +1 more source

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