Results 51 to 60 of about 116,825 (204)
Effect of Helium on the Raman Spectrum of Methane in the 2500–3300 cm−1 Range
Atmospheric and Oceanic Optics, 2021 The peak positions and halfwidths of the Q-branch of the ν1 band and the ratios of intensities of the Q-branches of ν3 and 2ν2 bands of methane are measured in a methane–helium mixture at different pressures and concentrations. An empirical model is developed for estimation of the He concentration in a methane-containing medium from measurements of the
Tanichev, Alexander S. +3 more
openaire +2 more sources
CCVD synthesis of carbon nanotubes from (Mg,Co,Mo)O catalysts: influence of the proportions of cobalt and molybdenum [PDF]
, 2004 Carbon nanotubes have been synthesised by catalytic chemical vapour deposition of a H2–CH4 mixture (18 mol% CH4) over (Mg,Co,Mo)O catalysts. The total amount of cobalt and molybdenum has been kept constant at 1 cat% and the proportion of molybdenum with ...
Bacsa, Revathi +4 more
core +4 more sources
Raman scattering from phonons and magnons in RFe3)BO3)4 [PDF]
, 2006 Inelastic light scattering spectra of several members of the RFe3(BO3)4 family reveal a cascade of phase transitions as a function of temperature, starting with a structural, weakly first order, phase transition followed by two magnetic phase transitions.
A. D. Bruce +13 more
core +3 more sources
Journal of Biomedical Optics, 2015 Resonance enhancement of Raman spectroscopy (RS) has been used to significantly improve the sensitivity and selectivity of detection for specific components in complicated environments. Resonance RS gives more insight into the biochemical structure and reactivity.
Zhong, Wang, Yuee, Li
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Micro raman spectroscopy of diamonds in the Canyon Diablo iron meteorite: Implication for shock origin [PDF]
, 1998 Raman spectra were measured for diamonds in an inclusion of the Canyon Diablo iron meteorite. The wavenumber position of a Raman peak was found in the range between 1333 and 1318cm^, and the full width at half maximum (FWHM) of the Raman peak ranges from
Masamichi Miyamoto
core +1 more source
Widespread abiotic methane in chromitites [PDF]
, 2018 Recurring discoveries of abiotic methane in gas seeps and springs in ophiolites and peridotite massifs worldwide raised the question of where, in which rocks, methane was generated.
Etiope, G. +8 more
core +1 more source
MoleculesThis study presents a digital surface-enhanced Raman scattering (SERS) method to enhance the sensitivity of SERS detection for low-concentration analytes.
Soyeon Lee, Jaebum Choo
doaj +1 more source
ORIGIN OF LIGHT SCATTERING FROM DISORDERED SYSTEMS
, 1995 Anelastic light scattering is computed numerically for model disordered systems (linear chains and 2-dimensional site and bond percolators), with and without electrical disorder.
. +7 more
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Ultrafast dephasing in hydrogen-bonded pyridine–water mixtures
Open Physics, 2021 Hydrogen-bonded mixtures with varying concentration are a complicated networked system that demands a detection technique with both time and frequency resolutions.
Ariunbold Gombojav O. +3 more
doaj +1 more source
Full range characterization of the Raman spectra of organs in a murine model
Optics Express, 2011 Raman spectroscopy is a minimally-invasive optical technique with great potential for in vivo cancer detection and disease diagnosis. However, there is no systematic study of the Raman spectra from different organs to date. We measured and characterized the Raman spectra eighteen naïve mouse organs in a broad frequency range of 700 to 3100 cm⁻¹.
Naiyan, Huang +6 more
openaire +2 more sources