Results 21 to 30 of about 403,019 (299)

Investigation of modified bitumen binders via Fourier-transform infrared spectroscopy

open access: yesТонкие химические технологии, 2020
Objectives. This study evaluates the effect of the modification process on the group composition of bitumen and bitumen binders containing rubber powder and hybrid modifier that is based on styrene–butadiene thermoplastic elastomer and rubber crumb.
I. V. Gordeeva   +4 more
doaj   +1 more source

Fourier transform infrared spectroscopy and elastic properties of Mg1-xCdxFe2O4 ferrite systems [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2019
Cadmium substituted magnesium ferrites were synthesized by a low-cost solid-state method. The cubic structure in homogenous state was realized by X-ray diffraction analysis.
Satyappa Laxman Galagali   +6 more
doaj   +1 more source

On-chip mid-infrared photothermal spectroscopy using suspended silicon-on-insulator microring resonators [PDF]

open access: yes, 2016
Mid-infrared spectroscopic techniques rely on the specific "fingerprint" absorption lines of molecules in the mid-infrared band to detect the presence and concentration of these molecules.
Baets, Roel   +5 more
core   +3 more sources

Monitoring wine aging with Fourier transform infrared spectroscopy (FT-IR)

open access: yesBIO Web of Conferences, 2015
Oak wood has commonly been used in wine aging but recently other wood types such as Acacia and Chestnut, have attracted the interest of the researchers due to their possible positive contribution to wine quality. However, only the use of oak and chestnut
Basalekou Marianthi   +6 more
doaj   +1 more source

Herbal Medicine Characterization Perspectives Using Advanced FTIR Sample Techniques – Diffuse Reflectance (DRIFT) and Photoacoustic Spectroscopy (PAS)

open access: yesFrontiers in Plant Science, 2020
This study demonstrates the significant potential of the Fourier transform infrared spectroscopy (FTIR) sampling methods: cantilever-enhanced Fourier transform infrared photoacoustic spectroscopy (FTIR PAS) and diffuse reflectance infrared spectroscopy ...
Agnese Brangule   +2 more
doaj   +1 more source

An evaluation of IASI-NH3 with ground-based Fourier transform infrared spectroscopy measurements [PDF]

open access: yesAtmospheric Chemistry and Physics, 2016
Global distributions of atmospheric ammonia (NH3) measured with satellite instruments such as the Infrared Atmospheric Sounding Interferometer (IASI) contain valuable information on NH3 concentrations and variability in regions not yet covered by ...
E. Dammers   +28 more
doaj   +1 more source

The atomic structure of protons and hydrides in Sm1.92Ca0.08Sn2O7-δ pyrochlore from DFT calculations and FTIR spectroscopy [PDF]

open access: yes, 2012
A combined density functional theory and Fourier transform infrared spectroscopy study of the structure and specific site preference of protons and hydrides in the pyrochlore Sm1.92Ca0.08Sn2O7-delta is presented.
Bork, Nicolai Christian   +4 more
core   +2 more sources

Reconstruction of submarine eruption processes from FTIR volatile analysis of marine tephra: Example of Oomurodashi volcano, Japan

open access: yesFrontiers in Earth Science, 2022
Tephra layers in marine sediments are widely used to correlate and date paleoclimate and paleoceanography records, and to determine spatiotemporal changes in magmatic evolution and eruption frequency.
Iona M. McIntosh   +5 more
doaj   +1 more source

Analysis of ovarian tumor pathology by Fourier Transform Infrared Spectroscopy

open access: yesJournal of Ovarian Research, 2010
Background Ovarian cancer is the second most common cancer among women and the leading cause of death among gynecologic malignancies. In recent years, infrared (IR) spectroscopy has gained attention as a simple and inexpensive method for the biomedical ...
Mehrotra Ranjana   +4 more
doaj   +1 more source

Visible–infrared two-dimensional Fourier-transform spectroscopy [PDF]

open access: yesOptics Letters, 2002
We report on a new class of optical multidimensional Fourier-transform spectroscopy associated with a visible excitation-infrared emission configuration, in which the emitted field results from second-order optical nonlinearities. This configuration is demonstrated on a phase-matched sample of known nonlinear response by coherent measurement of the mid-
Belabas, Nadia, Joffre, Manuel
openaire   +3 more sources

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